大家好,又见面了,我是你们的朋友全栈君。
目录
1.初识FastCGI协议
FastCGI 是一种协议,规定了FastCGI应用和支持FastCGI的Web服务器之间的接口。FastCGI是二进制连续传递的。
1.1消息头
FastCGI定义了多种类型的消息;nginx对FastCGI消息类型定义如下:
#define NGX_HTTP_FASTCGI_BEGIN_REQUEST 1
#define NGX_HTTP_FASTCGI_ABORT_REQUEST 2
#define NGX_HTTP_FASTCGI_END_REQUEST 3
#define NGX_HTTP_FASTCGI_PARAMS 4
#define NGX_HTTP_FASTCGI_STDIN 5
#define NGX_HTTP_FASTCGI_STDOUT 6
#define NGX_HTTP_FASTCGI_STDERR 7
#define NGX_HTTP_FASTCGI_DATA 8
一般情况下,最先发送的是BEGIN_REQUEST类型的消息,然后是PARAMS和STDIN类型的消息;
当FastCGI响应处理完后,将发送STDOUT和STDERR类型的消息,最后以END_REQUEST表示请求的结束。
FastCGI定义了一个统一结构的8个字节消息头,用来标识每个消息的消息体,以及实现消息数据的分割。结构体定义如下:
typedef struct {
u_char version; //FastCGI协议版本
u_char type; //消息类型
u_char request_id_hi; //请求ID
u_char request_id_lo;
u_char content_length_hi; //内容
u_char content_length_lo;
u_char padding_length; //内容填充长度
u_char reserved; //保留
} ngx_http_fastcgi_header_t;
我们看到请求ID与内容长度分别用两个u_char存储,实际结果的计算方法如下:
requestId = (request_id_hi << 8) + request_id_lo;
contentLength = (content_length_hi << 8) + content_length_lo;
消息体的长度始终是8字节的整数倍,当实际内容长度不足时,需要填充若干字节;填充代码如下所示:
padding = 8 - len % 8;
padding = (padding == 8) ? 0 : padding;
1.2消息体举例
BEGIN_REQUEST类型的消息标识FastCGI请求的开始,结构固定,定义如下:
typedef struct {
u_char role_hi; //标记FastCGI应用应该扮演的角色
u_char role_lo;
u_char flags;
u_char reserved[5];
} ngx_http_fastcgi_begin_request_t;
角色同样使用两个u_char存储,计算方法为:
role = (role_hi << 8) + role_lo;
最常用的是响应器(Responder)角色,FastCGI应用接收所有与HTTP请求相关的信息,并产生一个HTTP响应。
nginx配置文件中,fastcgi_param指令配置的若干参数,以及HTTP请求的消息头,都是通过FCGI_PARAMS类型的消息传递的,此消息就是若干个名—值对(此名—值对在php中可以通过$_SERVER[ ]获取);
传输格式为nameLength+valueLength+name+value。
为了节省空间,对于0~127长度的值,Length使用了一个char来表示,第一位为0,对于大于127的长度的值,Length使用了4个char来表示,第一位为1;如下图所示:
Length字段编码的逻辑如下:
if (val_len > 127) {
*b->last++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80);
*b->last++ = (u_char) ((val_len >> 16) & 0xff);
*b->last++ = (u_char) ((val_len >> 8) & 0xff);
*b->last++ = (u_char) (val_len & 0xff);
} else {
*b->last++ = (u_char) val_len;
}
2. 基础知识
2.1 FastCGI配置
代码中搜索ngx_http_fastcgi_commands,查看fastcgi模块提供的配置指令;
static ngx_command_t ngx_http_fastcgi_commands[] = {
{ ngx_string("fastcgi_pass"),
NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, //只能出现在location块中
ngx_http_fastcgi_pass,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("fastcgi_param"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE23, //可以出现在http配置块、server配置块、location配置块中
ngx_http_upstream_param_set_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_fastcgi_loc_conf_t, params_source), //ngx_http_fastcgi_loc_conf_t结构的params_source字段是存储配置参数的array,
NULL },
…………
}
fastcgi_pass指令用于配置上游FastCGI应用的ip:port,ngx_http_fastcgi_pass方法解析此指令(设置handler为ngx_http_fastcgi_handler方法,命中当前location规则的HTTP请求,请求处理的内容产生阶段会调用此handler);
fastcgi_param用于配置nginx向FastCGI应用传递的参数,在php中,我们可以通过$_SERVER[” “]获取这些参数;
解析fastcgi_param配置的代码实现如下:
char * ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
a = (ngx_array_t **) (p + cmd->offset); //ngx_http_fastcgi_loc_conf_t结构首地址加params_source字段的偏移
param = ngx_array_push(*a);
value = cf->args->elts;
param->key = value[1];
param->value = value[2];
param->skip_empty = 0;
if (cf->args->nelts == 4) { //if_not_empty用于配置参数是否必传(如果配置,当值为空时不会传向FastCGI应用传递此参数)
if (ngx_strcmp(value[3].data, "if_not_empty") != 0) {
return NGX_CONF_ERROR;
}
param->skip_empty = 1;
}
return NGX_CONF_OK;
}
2.2FastCGI配置预处理
fastcgi_param配置的所有参数会会存储在ngx_http_fastcgi_loc_conf_t结构体的params_source字段;
nginx为了方便生成fastcgi请求数据,会提前对params_source做一些预处理,预先初始化号每个名—值对的长度以及数据拷贝方法等;
2.1节查看fastcgi模块提供的配置指令时发现,某些配置指令出现在location配置块,有些配置却可以出现http配置块、server配置块和location配置块;即可能出现同一个指令同时出现在好几个配置块中,此时如何解析配置?
对于这些配置指令,nginx最终会执行一个merge操作,合并多个配置为一个;观察nginx的HTTP模块,大多模块都会存在一个merge_loc_conf字段(函数指针),用于merge配置;
fastcgi模块的merge操作由ngx_http_fastcgi_merge_loc_conf完成,其同时对params_source进行了一些预处理;代码如下:
static char * ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
{
ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
prev->upstream.connect_timeout, 60000);
ngx_conf_merge_value(conf->upstream.pass_request_headers,
prev->upstream.pass_request_headers, 1); //配置HTTP头部是否传递给FastCGI应用,默认为1
ngx_conf_merge_value(conf->upstream.pass_request_body,
prev->upstream.pass_request_body, 1); //配置HTTP body是否传递给FastCGI应用,默认为1
…………
if (ngx_http_fastcgi_merge_params(cf, conf, prev) != NGX_OK) { //重点,merger并预处理传递给FastCGI应用的参数
return NGX_CONF_ERROR;
}
}
ngx_http_fastcgi_merge_params方法主要params_source做了一些预处理,主要处理逻辑如下:
注意:配置参数的名称以HTTP_开始时,此参数可能还是HTTP请求头,需要记录这些参数,以便传递HTTP请求头时排除掉。
static ngx_int_t ngx_http_fastcgi_merge_params(ngx_conf_t *cf,
ngx_http_fastcgi_loc_conf_t *conf, ngx_http_fastcgi_loc_conf_t *prev)
{
if (conf->params_source) {
src = conf->params_source->elts;
nsrc = conf->params_source->nelts;
}
conf->params_len = ngx_array_create(cf->pool, 64, 1); //params_len用于计算参数名—值的长度
conf->params = ngx_array_create(cf->pool, 512, 1); //params用于名—值对数据内容的处理(拷贝)
if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) != NGX_OK){ //存储以HTTP_开始的配置参数,hash表
return NGX_ERROR;
}
for (i = 0; i < nsrc; i++) {
//以HTTP_开始,存储在headers_names hash表
if (src[i].key.len > sizeof("HTTP_") - 1 && ngx_strncmp(src[i].key.data, "HTTP_", sizeof("HTTP_") - 1) == 0){
hk = ngx_array_push(&headers_names);
hk->key.len = src[i].key.len - 5;
hk->key.data = src[i].key.data + 5;
hk->key_hash = ngx_hash_key_lc(hk->key.data, hk->key.len);
hk->value = (void *) 1;
}
//ngx_http_script_copy_code_t结构体包含两个字段:code函数指针,用于计算参数名称的长度(方法内部直接返回了了len字段);len是参数名称的长度
copy = ngx_array_push_n(conf->params_len, sizeof(ngx_http_script_copy_code_t));
copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
copy->len = src[i].key.len;
//这里的len表示参数是否必传;对于非必传参数,当此参数的值为空时,可以不传递此参数;(ngx_http_script_copy_len_code方法内部直接返回了了len字段,即skip_empty)
copy = ngx_array_push_n(conf->params_len, sizeof(ngx_http_script_copy_code_t));
copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
copy->len = src[i].skip_empty;
//ngx_http_script_copy_code_t结构体包含两个字段:code函数指针,实现参数名称内容的拷贝;len数参数名称的长度
//空间大小为ngx_http_script_copy_code_t结构体长度,加参数名称的长度;最后再8字节对齐
size = (sizeof(ngx_http_script_copy_code_t) + src[i].key.len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1);
copy = ngx_array_push_n(conf->params, size);
copy->code = ngx_http_script_copy_code;
copy->len = src[i].key.len;
//拷贝数据
p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
ngx_memcpy(p, src[i].key.data, src[i].key.len);
//params_len与params分别存储NULL,以实现存储空间的分隔;及参数与参数之间使用NULL进行隔离;
code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t));
*code = (uintptr_t) NULL;
code = ngx_array_push_n(conf->params, sizeof(uintptr_t));
*code = (uintptr_t) NULL;
}
conf->header_params = headers_names.nelts; //以HTTP_开始的参数存储在conf的header_params与headers_hash字段
hash.hash = &conf->headers_hash;
……
return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts);
}
根据上面的代码逻辑,很容易画出params_len与params的内部存储结构:
问题:参数是名—值对,这里的代码只对参数名称进行了预处理,参数的值呢?参数的值应该与请求相对应的,在解析配置文件时,并没有请求对应的信息,如何预处理参数的值呢?
一般fastcgi的参数是以下这些配置:
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
…………
参数的值其实就是nginx提供的一系列可以直接使用变量(在ngx_http_variable.c文件中查找ngx_http_core_variables数组,即nginx提供的变量),每个变量都有一个索引值;
预处理fastcgi的配置参数时,其实只需要初始化参数值对应的变量索引即可;(注意参数的值可能是由多个nginx变量组合而成)
注意到ngx_http_fastcgi_merge_params方法中还有以下一段代码:
for (i = 0; i < nsrc; i++) {
sc.cf = cf;
sc.source = &src[i].value;
sc.flushes = &conf->flushes;
sc.lengths = &conf->params_len;
sc.values = &conf->params;
if (ngx_http_script_compile(&sc) != NGX_OK) {
return NGX_ERROR;
}
}
我们看到sc的这些字段values(params)、lengths(params_len)、source(src[i].value,即参数的值);ngx_http_script_compile可以对params和params_len字段进行修改;其实现如下:
ngx_int_t ngx_http_script_compile(ngx_http_script_compile_t *sc)
{
for (i = 0; i < sc->source->len; /* void */ ) {
//针对$document_root$fastcgi_script_name这种配置,会执行两次
if (sc->source->data[i] == '$') {
if (ngx_http_script_add_var_code(sc, &name) != NGX_OK) { //name是变量名称
return NGX_ERROR;
}
}
}
}
//同一个参数,值可能由多个变量组合而成,同一个参数可能会调用此方法多次
static ngx_int_t ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name)
{
index = ngx_http_get_variable_index(sc->cf, name); //获取变量的索引
//ngx_http_script_var_code_t结构体包含两个字段:code函数指针,计算为变量长度(方法内部查找索引为index的变量,返回其长度);index为变量索引
code = ngx_http_script_add_code(*sc->lengths, sizeof(ngx_http_script_var_code_t), NULL); //存储到lengths,即params_len
code->code = (ngx_http_script_code_pt) ngx_http_script_copy_var_len_code;
code->index = (uintptr_t) index;
//ngx_http_script_var_code_t结构体包含两个字段:code函数指针,拷贝变量内容(方法内部查找索引为index的变量,拷贝变量内容);index为变量索引
code = ngx_http_script_add_code(*sc->values, sizeof(ngx_http_script_var_code_t), &sc->main); //存储到values,即params
code->code = ngx_http_script_copy_var_code;
code->index = (uintptr_t) index;
return NGX_OK;
}
最终params_len与params的内部存储结构入下图:
3.构造FastCGI请求
方法ngx_http_fastcgi_create_request创建FastCGI请求,初始化请求内容(包括BEGIN_REQUEST、PARAMS和STDIN类型的请求消息);
3.1FastCGI请求结构
FastCGI应用即为nginx的upstream,输出缓冲区的类型为ngx_chain_t,是由多个buf组成的链表
struct ngx_chain_s {
ngx_buf_t *buf;
ngx_chain_t *next;
};
nginx将FastCGI请求分为三个部分,由三个buf链成一个ngx_chain_s;nginx构造的FastCGI请求结构如下图所示;
其中第一部分主要包括fastcgi_param配置的参数以及HTTP请求的header,其他内容固定不变;第二部分是HTTP请求的body,其buf在解析HTTP请求时已经初始化好了,此处只需要将此buf添加到ngx_chain_s链中即可;第三部分内容固定;
3.2 计算请求第一部分长度
为第一部分分配buf时,首先需要计算buf所需空间的大小;第一部分空间分为fastcgi_param参数与HTTP请求header;计算方法见下文:
1)计算fastcgi_param参数所需空间大小:
if (flcf->params_len) {
ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables(r, flcf->flushes);
le.flushed = 1;
le.ip = flcf->params_len->elts; //le.ip即为params_len存储的元素
le.request = r;
while (*(uintptr_t *) le.ip) { //循环计算索引参数key与value长度之和
lcode = *(ngx_http_script_len_code_pt *) le.ip; //key长度,lcode指向方法ngx_http_script_copy_len_code
key_len = lcode(&le);
lcode = *(ngx_http_script_len_code_pt *) le.ip; //是否必传,lcode指向方法ngx_http_script_copy_len_code
skip_empty = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { //value长度,lcode指向方法ngx_http_script_copy_var_len_code(注意value可能又多个值组合而成)
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t); //跳参数之间分割的NULL
if (skip_empty && val_len == 0) { //非必传参数,值为空时可跳过
continue;
}
len += 1 + key_len + ((val_len > 127) ? 4 : 1) + val_len;
}
}
2)HTTP请求header所需空间大小
if (flcf->upstream.pass_request_headers) { //是否需要向FastCGI应用传递header
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
//header_params记录fastcgi_param是否配置了以HTTP_开始的参数,headers_hash存储此种类型的配置参数
if (flcf->header_params) {
for (n = 0; n < header[i].key.len; n++) {
ch = header[i].key.data[n];
if (ch >= 'A' && ch <= 'Z') {
ch |= 0x20;
} else if (ch == '-') {
ch = '_';
}
hash = ngx_hash(hash, ch);
lowcase_key[n] = ch;
}
if (ngx_hash_find(&flcf->headers_hash, hash, lowcase_key, n)) { //查询此HTTP请求头是否已经由fastcgi_param指令配置;有则忽略此HTTP请求头
ignored[header_params++] = &header[i];
continue;
}
n += sizeof("HTTP_") - 1; //请求头添加HTTP_前缀(n已经累加到header[i].key.len了)
} else {
n = sizeof("HTTP_") - 1 + header[i].key.len; //请求头添加HTTP_前缀
}
len += ((n > 127) ? 4 : 1) + ((header[i].value.len > 127) ? 4 : 1)
+ n + header[i].value.len;
}
}
3)创建第一部分buf
if (len > 65535) {
return NGX_ERROR;
}
padding = 8 - len % 8;
padding = (padding == 8) ? 0 : padding;
size = sizeof(ngx_http_fastcgi_header_t)
+ sizeof(ngx_http_fastcgi_begin_request_t)
+ sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */
+ len + padding
+ sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */
+ sizeof(ngx_http_fastcgi_header_t); /* NGX_HTTP_FASTCGI_STDIN */
b = ngx_create_temp_buf(r->pool, size);
cl = ngx_alloc_chain_link(r->pool);
cl->buf = b;
3.3填充请求第一部分
nginx的缓冲区buf主要关注以下四个字段:
struct ngx_buf_s {
u_char *pos; //当buf所指向的数据在内存里的时候,pos指向的是这段数据开始的位置
u_char *last; //当buf所指向的数据在内存里的时候,last指向的是这段数据结束的位置
off_t file_pos; //当buf所指向的数据是在文件里的时候,file_pos指向的是这段数据的开始位置在文件中的偏移量
off_t file_last;//当buf所指向的数据是在文件里的时候,file_last指向的是这段数据的结束位置在文件中的偏移量
1)填充fastcgi_param参数
if (flcf->params_len) {
e.ip = flcf->params->elts; //e.ip是params
e.pos = b->last;
le.ip = flcf->params_len->elts; le.ip是params_len
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip; //key的长度
key_len = (u_char) lcode(&le);
lcode = *(ngx_http_script_len_code_pt *) le.ip; //是否必传
skip_empty = lcode(&le);
for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { //value的长度
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
le.ip += sizeof(uintptr_t);
if (skip_empty && val_len == 0) { //跳过
…………
}
*e.pos++ = (u_char) key_len; //填充key_len
//填充value_len
if (val_len > 127) {
*e.pos++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80);
*e.pos++ = (u_char) ((val_len >> 16) & 0xff);
*e.pos++ = (u_char) ((val_len >> 8) & 0xff);
*e.pos++ = (u_char) (val_len & 0xff);
} else {
*e.pos++ = (u_char) val_len;
}
//填充key和value的数据内容;key的填充方法为ngx_http_script_copy_code,value的填充方法ngx_http_script_copy_var_code,
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t); //跳过参数之间分割的NULL
}
b->last = e.pos;
}
2)填充HTTP请求头
if (flcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; /* void */; i++) {
for (n = 0; n < header_params; n++) { //上一步计算长度时,会记录跳过的header在ignored;填充阶段直接跳过
if (&header[i] == ignored[n]) {
goto next;
}
}
key_len = sizeof("HTTP_") - 1 + header[i].key.len; //填充key长度
if (key_len > 127) {
*b->last++ = (u_char) (((key_len >> 24) & 0x7f) | 0x80);
*b->last++ = (u_char) ((key_len >> 16) & 0xff);
*b->last++ = (u_char) ((key_len >> 8) & 0xff);
*b->last++ = (u_char) (key_len & 0xff);
} else {
*b->last++ = (u_char) key_len;
}
val_len = header[i].value.len; //填充value长度
if (val_len > 127) {
*b->last++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80);
*b->last++ = (u_char) ((val_len >> 16) & 0xff);
*b->last++ = (u_char) ((val_len >> 8) & 0xff);
*b->last++ = (u_char) (val_len & 0xff);
} else {
*b->last++ = (u_char) val_len;
}
b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1); //填充HTTP_前缀
for (n = 0; n < header[i].key.len; n++) { //填充key数据内容
ch = header[i].key.data[n];
if (ch >= 'a' && ch <= 'z') {
ch &= ~0x20;
} else if (ch == '-') {
ch = '_';
}
*b->last++ = ch;
}
b->last = ngx_copy(b->last, header[i].value.data, val_len); //填充value数据内容
next:
continue;
}
}
3.4填充请求第二三部分
HTTP请求的body同样存储在ngx_chain_t结构中,nginx需要遍历链表的所有buf,构造fastcgi的请求数据;
注意:nginx构造fastcgi请求时,第二部分请求(http_body)的长度最长为32K,当超过此限制时,HTTP请求体会被分割为多个http_body请求;入下图所示:
do {
b = ngx_alloc_buf(r->pool);
b->pos = pos;
pos += 32 * 1024;
if (pos >= body->buf->last) { //数据小于32k,next赋值为1,结束while循环;否则就切割为了32K大小的数据包
pos = body->buf->last;
next = 1;
}
b->last = pos;
len = (ngx_uint_t) (pos - b->pos);
padding = 8 - len % 8;
padding = (padding == 8) ? 0 : padding;
cl->next = ngx_alloc_chain_link(r->pool);
cl = cl->next; //添加http_body请求包到buf链表中
cl->buf = b;
…………
b = ngx_create_temp_buf(r->pool, sizeof(ngx_http_fastcgi_header_t) + padding);
cl->next = ngx_alloc_chain_link(r->pool);
cl = cl->next; //添加padding与header请求包到buf链表中
cl->buf = b;
} while (!next);
4. 实战
4.1配置
nginx配置如下:
http{
…………
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
server {
listen 80;
server_name localhost;
root /home/xiaoju;
index index.php index.html;
location / {
fastcgi_index index.php;
fastcgi_pass 127.0.0.1:9000;
include fastcgi.conf;
}
}
}
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
………………
编写PHP脚本,只是简单的将post入参返回即可:
<?php
foreach($_POST as $key=>$v){
$ret['ret-'.$key] = 'ret-'.$v;
}
echo json_encode($ret);
4.2FastCGI请求包
我们GDB nginx worker进程;
查看FastCGI请求参数,在ngx_http_fastcgi_create_request方法添加断点,执行到函数最后一行(此时请求数据已经构造完成),输出数据存储在表达式r->upstream->request_bufs表示的缓冲区;
查看FastCGI应用(php-fpm)返回的数据,在ngx_http_fastcgi_process_record方法添加断点,方法入参ngx_http_fastcgi_ctx_t的pos和last分别指向读入数据的开始与结尾,此方法杜泽解析读入数据;
添加断点如下:
Num Type Disp Enb Address What
1 breakpoint keep y 0x0000000000418f05 in ngx_process_events_and_timers at src/event/ngx_event.c:203 inf 3, 2, 1
breakpoint already hit 17 times
2 breakpoint keep y 0x000000000045b7fa in ngx_http_fastcgi_create_request at src/http/modules/ngx_http_fastcgi_module.c:735 inf 3, 2, 1
breakpoint already hit 4 times
3 breakpoint keep y 0x000000000045c2af in ngx_http_fastcgi_create_request at src/http/modules/ngx_http_fastcgi_module.c:1190 inf 3, 2, 1
breakpoint already hit 4 times
4 breakpoint keep y 0x000000000045a573 in ngx_http_fastcgi_process_record at src/http/modules/ngx_http_fastcgi_module.c:2145 inf 3, 2, 1
breakpoint already hit 1 time
执行到ngx_http_fastcgi_create_request函数结尾(断点3),打印r->upstream->request_bufs三个buf:
注意:gdb使用命令p打印字符串时,需设置set print element 0才不会省略部分字符串,否则字符串不会打印完全;@符号表示打印多少个字符(fastcgi请求时二进制数据,不能依据\0判断结尾);字符串显示时,显示‘\222’时,为8进制表示,需转换为10进制计算才行;
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0\b(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节头部,type=1(BEGIN_REQUEST)
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节BEGIN_REQUEST数据包
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
4(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
22(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
6(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
75SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0QUERY_STRING6(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
4REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
6(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
2CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
7\bSERVER_PROTOCOLHTTP/1.1
1\aGATEWAY_INTERFACECGI/1.1
7\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
5REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
2SERVER_PORT80
\v\tSERVER_NAMElocalhost
7(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
3REDIRECT_STATUS200
7dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
3HTTP_ACCEPT*/*
3(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
2HTTP_CONTENT_LENGTH19
1!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //6字节内容填充
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
4(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
5(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
03(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
5(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //5字节填充
(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
5(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
1(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0(gdb) p *r->upstream->request_bufs->buf->pos@1000
$18 =
\001\001\000\001\000\b\000\000 //8字节头部,type=1(BEGIN_REQUEST)
\000\001\000\000\000\000\000\000 //8字节BEGIN_REQUEST数据包
\001\004\000\001\002\222\006\000 //8字节头部,type=4(PARAMS),数据内容长度=2*256+146=658(不是8字节整数倍,需要填充6个字节)
\017\025SCRIPT_FILENAME/home/xiaoju/test.php //key-value,格式为:keylen+valuelen+key+value
\f\000QUERY_STRING\016\004REQUEST_METHODPOST
\f!CONTENT_TYPEapplication/x-www-form-urlencoded
\016\002CONTENT_LENGTH19
\v\tSCRIPT_NAME/test.php
\v\nREQUEST_URI//test.php
\f\tDOCUMENT_URI/test.php
\r\fDOCUMENT_ROOT/home/xiaoju
\017\bSERVER_PROTOCOLHTTP/1.1
\021\aGATEWAY_INTERFACECGI/1.1
\017\vSERVER_SOFTWAREnginx/1.6.2
\v\tREMOTE_ADDR127.0.0.1
\v\005REMOTE_PORT54276
\v\tSERVER_ADDR127.0.0.1
\v\002SERVER_PORT80
\v\tSERVER_NAMElocalhost
\017\003REDIRECT_STATUS200
\017dHTTP_USER_AGENTcurl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
\t\tHTTP_HOSTlocalhost
\v\003HTTP_ACCEPT*/*
\023\002HTTP_CONTENT_LENGTH19
\021!HTTP_CONTENT_TYPEapplication/x-www-form-urlencoded
\000\000\000\000\000\000 //6字节内容填充
\001\004\000\001\000\000\000\000 //8字节头部,type=4(PARAMS),表示PARAMS请求结束
\001\005\000\001\000\023\005\000 //8字节头部,type=5(STDIN),请求体数据长度19个字节
(gdb) p *r->upstream->request_bufs->next->buf->pos@20
$19 = "name=hello&gender=1" //HTTP请求体,长度19字节,需填充5个字节
(gdb) p *r->upstream->request_bufs->next->next->buf->pos@20
$20 =
\000\000\000\000\000 //5字节填充
\001\005\000\001\000\000\000 //8字节头部,type=5(STDIN),表示STDIN请求结束
0 //8字节头部,type=5(STDIN),表示STDIN请求结束
执行到方法ngx_http_fastcgi_process_record,打印读入请求数据:
(gdb)p *f->pos@1000
$26 =
(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
1(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
6(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
1(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
07(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
1(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0
(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
1(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
3(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
1(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0\b(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0(gdb)p *f->pos@1000
$26 =
\001\006\000\001\000\377\001\000 //8字节头部,type=6(STDOUT),返回数据长度为255字节(需要填充1个字节)
Set-Cookie: PHPSESSID=3h9lmb2mvp6qlk1rg11id3akd3; path=/\r\n //返回数据内容,以换行符分隔
Expires: Thu, 19 Nov 1981 08:52:00 GMT\r\n
Cache-Control: no-store, no-cache, must-revalidate\r\n
Pragma: no-cache\r\n
Content-type: text/html; charset=UTF-8\r\n
\r\n
{\"ret-name\":\"ret-hello\",\"ret-gender\":\"ret-1\"}
\000
\001\003\000\001\000\b\000\000 //8字节头部,type=3(END_REQUEST),表示fastcgi请求结束,数据长度为8
\000\000\000\000\000m\" //8字节END_REQUEST数据
0m\" //8字节END_REQUEST数据
END_REQUEST请求数据体8个字节,其定义可以在php源码中查看:
typedef struct _fcgi_end_request {
unsigned char appStatusB3; 结束状态,0为正常
unsigned char appStatusB2;
unsigned char appStatusB1;
unsigned char appStatusB0;
unsigned char protocolStatus; //为协议所处的状态,0为正常状态
unsigned char reserved[3];
} fcgi_end_request;
总结
本文通过分析ngx_http_fastcgi_module模块构造FastCGI请求的代码,学习FastCGI协议格式,并通过GDB打印FastCGI请求与相应数据,以此对FastCGI协议有了更直观的理解。
发布者:全栈程序员-用户IM,转载请注明出处:https://javaforall.cn/157406.html原文链接:https://javaforall.cn
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