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/*
* socket.c -- socket library functions
*
* For license terms, see the file COPYING in this directory.
*/
#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
#if defined(STDC_HEADERS)
#include <stdlib.h>
#endif
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#if defined(HAVE_STDARG_H)
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "socket.h"
#define INTERNAL_BUFSIZE 2048
FILE *Socket(host, clientPort)
char *host;
int clientPort;
{
int sock;
unsigned long inaddr;
struct sockaddr_in ad;
struct hostent *hp;
FILE *sockfp;
memset(&ad, 0, sizeof(ad));
ad.sin_family = AF_INET;
inaddr = inet_addr(host);
if (inaddr != INADDR_NONE)
memcpy(&ad.sin_addr, &inaddr, sizeof(inaddr));
else
{
hp = gethostbyname(host);
if (hp == NULL)
return (FILE *)NULL;
memcpy(&ad.sin_addr, hp->h_addr, hp->h_length);
}
ad.sin_port = htons(clientPort);
sock = socket(AF_INET, SOCK_STREAM, 0);
if (sock < 0)
return (FILE *)NULL;
if (connect(sock, (struct sockaddr *) &ad, sizeof(ad)) < 0)
{
close(sock);
return (FILE *)NULL;
}
sockfp = fdopen(sock, "r+");
setvbuf(sockfp, NULL, _IOLBF, INTERNAL_BUFSIZE);
return sockfp;
}
#if defined(HAVE_STDARG_H)
int SockPrintf(FILE *sockfp, char* format, ...)
{
#else
int SockPrintf(sockfp,format,va_alist)
FILE *sockfp;
char *format;
va_dcl {
#endif
va_list ap;
char buf[8192];
#if defined(HAVE_STDARG_H)
va_start(ap, format) ;
#else
va_start(ap);
#endif
vsprintf(buf, format, ap);
va_end(ap);
return SockWrite(buf, strlen(buf), sockfp);
}
int SockWrite(buf,len,sockfp)
char *buf;
int len;
FILE *sockfp;
{
return(fputs(buf, sockfp));
}
int SockGets(buf, len, sockfp)
char *buf;
int len;
FILE *sockfp;
{
if (fgets(buf, len, sockfp) == (char *)NULL)
return(-1);
else
{
char *sp, *tp;
for (tp = sp = buf; *sp; sp++)
if (*sp != '\r' && *sp != '\n')
*tp++ = *sp;
*tp++ = '\0';
return(strlen(buf));
}
}
/* socket.c ends here */
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