diff options
Diffstat (limited to 'sbin/nos-tun/nos-tun.c')
| -rw-r--r-- | sbin/nos-tun/nos-tun.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/sbin/nos-tun/nos-tun.c b/sbin/nos-tun/nos-tun.c index 7847d5e..35266ea 100644 --- a/sbin/nos-tun/nos-tun.c +++ b/sbin/nos-tun/nos-tun.c @@ -49,24 +49,26 @@ */ +#include <fcntl.h> +#include <netdb.h> #include <stdio.h> #include <stdlib.h> -#include <unistd.h> #include <string.h> -#include <fcntl.h> -#include <netdb.h> #include <syslog.h> -#include <sys/param.h> +#include <sys/signal.h> #include <sys/socket.h> #include <sys/ioctl.h> -#include <sys/signal.h> -#include <sys/time.h> #include <netinet/in.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <net/if.h> #include <arpa/inet.h> +#include <unistd.h> +#ifndef lint +static const char rcsid[] = + "$Id$"; +#endif /* not lint */ /* Tunnel interface configuration stuff */ static struct ifaliasreq ifra; @@ -76,6 +78,8 @@ static struct ifreq ifrq; int net; /* socket descriptor */ int tun; /* tunnel descriptor */ +static void usage __P((void)); + int Set_address(char *addr, struct sockaddr_in *sin) { struct hostent *hp; @@ -241,7 +245,7 @@ int main (int argc, char **argv) int nfds; /* Return from select() */ - while ((c = getopt(argc, argv, "d:s:t:")) != EOF) { + while ((c = getopt(argc, argv, "d:s:t:")) != -1) { switch (c) { case 'd': to_point = optarg; @@ -259,9 +263,7 @@ int main (int argc, char **argv) if (argc != 1 || (devname == NULL) || (point_to == NULL) || (to_point == NULL)) { - fprintf(stderr, - "Usage: nos_tun -t <tun_name> -s <source_addr> -d <dest_addr> <target_addr>\n"); - exit(1); + usage(); } target = *argv; @@ -343,3 +345,11 @@ int main (int argc, char **argv) } } +static void +usage() +{ + fprintf(stderr, +"usage: nos_tun -t <tun_name> -s <source_addr> -d <dest_addr> <target_addr>\n"); + exit(1); +} + |
