fastcgi c++使用

#include <fcgi_stdio.h>
#include <stdlib.h>
 
int main() {
    int count = 0;
    while (FCGI_Accept() >= 0) {
        printf("Content-type: text/html\r\n"
                "\r\n"
                ""
                "FastCGI Hello!"
                "Request number %d running on host%s "
                "Process ID: %d\n", ++count, getenv("SERVER_NAME"), getpid());
    }
    return 0;
}

g++ demo.cc -o demo -lfcgi​

        GET
        char buff[1024] = {0};
        strncpy(buff,getenv("QUERY_STRING"),sizeof(buff));
        printf("Content-Type=text\r\n\r\n");
        printf("User Data = %s\r\n",buff);
                                                                                                                           
        POST
        fread(buff,1,sizeof(buff),stdin);
        printf("Content-Type=text\r\n\r\n");
        printf("Secess: %s\r\n",buff);

 #include <stdlib.h>
  #include <string.h>
  #include <string>
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <fcntl.h>
  #include <unistd.h>
  #include <fcgi_stdio.h>                                                                                                                                                    

  char* memstr(char* full_data,int full_data_len,char* substr)
  {
  // 匹配子串的长度
  int sublen = strlen(substr);
  int i;
  char* cur = full_data;
  int last_possible = full_data_len-sublen +1;
  for (i = 0; i < last_possible; ++i) {
     if(*cur == *substr)
     {   
         if(memcmp(cur,substr,sublen) == 0)
         {   
             return cur;
         }
     }
     cur++;
  }
  return NULL;
  }
  
  void readFile(char* begin,int num,char* filename)
  {
          int fd = 0;
          fd = open(filename,O_CREAT|O_WRONLY,0644);
          ftruncate(fd,num);
          write(fd,begin,num);
          close(fd);
  }
  
  int main()
  {
      while(FCGI_Accept() >= 0)
      {   
          printf("Content-Type=text\r\n\r\n");
          char* contentLength = getenv("CONTENT_LENGTH");
          if(NULL == contentLength)
          {   
              printf("Error: Content-Length is NULL\r\n");
              break;
	                    break;
          }
          long len = atol(contentLength);
          char* file_buf= new char[len];
          fread(file_buf,1,len,stdin);
✹         int ret = 0;
          char *begin = NULL;
          char *p,*q,*k;
          char content_text[1024]={0}; //文件头部信息
          char boundary[1024] = {0}; //分界线信息
          char filename[1024] = {0};
          //-------------开始处理
          begin = file_buf; //内存起点
          p = begin;
          //get boundary 得到分界线, ------WebKitFormBoundary88asdgewtgewx
          p = strstr(begin,"\r\n");
          strncpy(boundary,begin,p-begin);
          boundary[p-begin] = '\0'; // 字符串结束符
          p += 2; //\r\n
          // 已经处理了p-begin的长度
          len -= (p-begin);
          begin = p;
  
          //get content text head
          p = strstr(begin,"\r\n");
          strncpy(content_text,begin,p-begin);
          content_text[p-begin] = '\0';
          p += 2;
          len -= (p-begin);
  
          //-------------------获取文件信息
          q = begin;
          q = strstr(begin,"filename=");
          q += strlen("filename=");
          q++; // 跳过一个双引号
          k = strchr(q,'"');
          strncpy(filename,q,k-q);
          filename[k-q] = '\0';
          begin = p;
          //--------------------获取文件信息结束
          p = strstr(begin,"\r\n");
          p += 4; //\r\n\r\n
          len -= (p-begin);
          begin = p;
          // 下面才是真正的内容
          p = memstr(begin,len,boundary);
          p -= 2;
          // 写入文件
	  readFile(begin,(p-begin),filename);
          delete [] file_buf;
          printf("%s\r\n",filename);
      }
      return 0;
  }