改用自行实现的http读取与解析，同时修复部分bug

c/network/http/http_rel.c

@@ -3,28 +3,75 @@
 #include <string.h>
 #include <unistd.h>
 #include <sys/socket.h>
-#include <bits/fcntl-linux.h>
+#include <fcntl.h>
 #include <errno.h>
 
+#include "errno.h"
 #include "tools/log/log.h"
 #include "http_rel.h"
 #include <netinet/in.h>
 
-/* 接收状态辅助结构 */
-
-const char *http_get_body(const char *buf);
-char *recv_http_request(int cfd);
-
-/* http_get_body 无需修改，保持原样 */
-const char *http_get_body(const char *buf)
-{
-    if (!buf) return NULL;
-    const char *sep = strstr(buf, "\r\n\r\n");
-    if (!sep) return NULL;
-    const char *body = sep + 4;
-    if (*body == '\0') return NULL;
-    return body;
+int write_in_bk(char input,httpbuf* blk){
+    if(blk->size%HTTP_BLOCK_SIZE == 0)//块满分配新块
+    {
+        void *tes = realloc(blk->buf,blk->size+HTTP_BLOCK_SIZE);
+        if(tes = NULL){//无法分配内存，清理并返回NULL
+            free(blk->buf);
+            perror("http rec error");
+            return -1;
+       }
+        blk->buf = tes;
+    }
+    blk->buf[blk->size] = input;
+    blk->size++;
+    return 0;
 }
+char *recv_http_request(int cfd){
+    httpbuf buf;
+    buf.buf = NULL;
+    // cppcheck-suppress missingReturn
+    buf.buf = (char*)malloc(HTTP_BLOCK_SIZE);
+    char input;
+    for(;;)
+    {
+        read(cfd,&input,1);
+        switch(input){//截取头部
+            case '\n':
+                if(buf.buf[buf.size-1] == '\r'&&buf.buf[buf.size-2] =='n'&&buf.buf[buf.size-3] == '\r')
+                {
+                    buf.size-3;
+                    buf.buf = (char*)realloc(buf.buf,buf.size);//截取头部
+                    goto HEAD_RCV;//跳转到头部解析
+                }
+                else
+                {
+                    if(write_in_bk(input,&buf)==-1)
+                        abort();
+                    break;
+                }
+            default:
+                if(write_in_bk(input,&buf)==-1)
+                    abort();//缓存头部
+                break;
+        }
+    }
+    HEAD_RCV:
+    //获取http体长度
+    char length[MAX_HTTP_LENGTH] = {' '};
+    int index = buf.size-1;
+    int tobewrite = MAX_HTTP_LENGTH-1;
+    while(buf.buf[index]!=' ')
+    {
+        length[tobewrite] = buf.buf[index];
+        index--;tobewrite--;
+    }
+    int bodylength = atoi(length);
+    free(buf.buf);//释放头部
+    buf.buf = malloc(bodylength);
+    read(cfd,buf.buf,bodylength);
+    return buf.buf;
+}
+
 
 /**
  * @brief 初始化HTTP监听socket，所有错误通过logmanager记录