Send HTTP Post

Et eksempel som jeg har postet før:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <windows.h>
#include <errno.h>

void get(char *hostname,int port,char *path, char *args)
{
  FILE *fp;
  int sd,status,len,first,tmp;
  char cmd[512],resp[51200],*body;
  struct sockaddr local,remote;
  struct hostent *hostinfo;
  /* create socket */
  sd=socket(AF_INET,SOCK_STREAM,0);
  if(sd<0) {
      printf("Error creating socket: %s\n",strerror(errno));
      goto fin;
  }
  /* bind socket */
  local.sa_family=AF_INET;
  memset(local.sa_data,0,sizeof(local.sa_data));
  status=bind(sd,&local,sizeof(local));
  if(status<0) {
      printf("Error binding socket: %s\n",strerror(errno));
      goto fin;
  }
  /* lookup host */
  hostinfo=gethostbyname(hostname);
  if(!hostinfo) {
      printf("Error looking up host: %s\n",hostname);
      goto fin;
  }
  /* connect to host */
  remote.sa_family=hostinfo->h_addrtype;
  memcpy(remote.sa_data+2,hostinfo->h_addr_list[0],hostinfo->h_length);
  *((short *)remote.sa_data)=port;
  tmp=remote.sa_data[0];
  remote.sa_data[0]=remote.sa_data[1];
  remote.sa_data[1]=tmp;
  status=connect(sd,&remote,sizeof(remote));
  if(status!=0) {
      printf("Error connecting to host: %s port: %d\n",hostname,port);
      goto fin;
  }
  /* send POST request */
  sprintf(cmd,"POST %s HTTP/1.1\r\nHost: %s\r\nConnection: close\r\nContent-Length: %d\r\n\r\n%s\r\n",
          path,hostname,strlen(args),args);
  status=send(sd,cmd,strlen(cmd),0);
  if(status<0) {
      printf("Error sending POST request\n");
      goto fin;
  }
  /* read response */
  while ((len=recv(sd,resp,sizeof(resp),0))>0) {
      printf("%s",resp);
  }
fin:
  closesocket(sd);
  return;
}

int main(int argc,char *argv[])
{
  WSADATA WSAData;
  WSAStartup(0x0101,&WSAData);
  get("www.xxxx.dk",80,"/cgi-bin/script","f1=val1&f2=val2");
  WSACleanup();
  return 0;
}

Til Linux:
  - sletter du linier med WSA
  - retter closesocket til close
  - ændrer includes (*)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#include <sys/socket.h>
#include <fcntl.h>
#include <netdb.h>
#include <errno.h>

OK ?