just a lil proggie I found while modding an ircd seems to work alright meh might help someone one
/*
* ============================================================
* test.c -- Basic test program for opening TCP ports
* Copyright © 2003 AngryWolf
* Email: angrywolf@flashmail.com
* ============================================================
* Compilation: gcc -o test test.c
* (or simply "make test")
* ============================================================
* Usage: test <IP> <port>
* Example: ./test 127.0.0.1 6667
* ============================================================
* Changes:
*
* 2003-03-06: Applied suggestions by SciFi
* 2003-03-06: Coded test.c
* ============================================================
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <errno.h>
#define BadPtr(x) !(x) || *(x) == '\0'
extern int errno;
void Error(char *format, ...);
void Usage();
int main(int parc, char *parv[])
{
int fd;
char *ip, *port;
struct sockaddr_in serv_addr;
/* Using more readable names */
ip = parv[1];
port = parv[2];
/* We can't work without parameters */
if (BadPtr(ip) || BadPtr(port))
Usage();
/* Trying to create a socket */
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0)
Error("Can't create a new socket");
/* Setting up stuff */
bzero((char *) &serv_addr, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(atoi(port));
serv_addr.sin_addr.s_addr = INADDR_ANY;
/* Trying to bind */
if (bind(fd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
{
Error("Couldn't bind stream socket to IP %s port %s\n[%s]",
ip, port, strerror(errno));
}
printf("Test was successful\n[opened port %s on IP %s]\n",
ip, port);
close(fd);
exit(0);
}
/*
* Error(): prints an error message
* format characters are accepted too
* (like printf())
*/
void Error(char *format, ...)
{
va_list frmt;
if (format == NULL)
return;
va_start(frmt, format);
printf("Error: ");
vprintf(format, frmt);
printf("\n");
va_end(frmt);
exit(1);
}
void Usage()
{
printf("Usage: test <IP> <port>\n");
printf("Example: ./test 127.0.0.1 6667\n");
exit(1);
}
