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/* soccon.c - function to open a connection to a socket
* $Id: soccon.c,v 1.3 2006/08/24 11:37:53 mgorse Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/un.h>
#include <unistd.h>
int sockconnect_unix(const char *fname)
{
struct sockaddr_un addr;
int sock;
if (!fname) return -1;
sock = socket(AF_UNIX, SOCK_STREAM, 0);
if (sock == -1)
{
perror("socket");
return -1;
}
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, fname, sizeof(addr.sun_path));
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1)
{
close(sock);
return -1;
}
return sock;
}
static int sockconnect_tcp(const char *port)
{
char host[1024];
int portnum;
int fd;
struct sockaddr_in servaddr;
char *p;
int len;
p = strstr(port, ":");
portnum = atoi(p + 1);
len = p - port;
if (len > 1023)
{
fprintf(stderr, "syntheport long\n");
exit(1);
}
memcpy(host, port, len);
host[len] = '\0';
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
perror("socket");
exit(1);
}
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(portnum);
#ifdef HAVE_INET_PTON
if (inet_pton(AF_INET, host, &servaddr.sin_addr) <= 0)
{
perror("inet_pton");
exit(1);
}
#else
servaddr.sin_addr.s_addr = inet_addr(host);
#endif
if (connect(fd, (struct sockaddr *) &servaddr, sizeof(servaddr)) < 0)
{
return -1;
}
return fd;
}
int sockconnect(const char *name)
{
if (!name) return -1;
if (strchr(name, ':')) return sockconnect_tcp(name);
else return sockconnect_unix(name);
}
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