From 0a73845cf024bfb250d3b1f571bb44d9df2e3215 Mon Sep 17 00:00:00 2001 From: andersen Date: Sat, 13 Nov 1999 04:47:09 +0000 Subject: updates for the day git-svn-id: svn://busybox.net/trunk/busybox@99 69ca8d6d-28ef-0310-b511-8ec308f3f277 --- mnc.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'mnc.c') diff --git a/mnc.c b/mnc.c index a9e66bebf..81dfd2529 100644 --- a/mnc.c +++ b/mnc.c @@ -40,8 +40,8 @@ #define BUFSIZE 100 static const char mnc_usage[] = -"mini-netcat 0.0.3 -- Open pipe to IP:port\n" -"\tmnc [IP] [port]\n"; +"mnc [IP] [port]\n\n" +"mini-netcat opens a pipe to IP:port\n"; int mnc_main(int argc, char **argv) @@ -56,9 +56,15 @@ mnc_main(int argc, char **argv) fd_set readfds, testfds; + if (argc<=1 || **(argv+1) == '-' ) { + usage( mnc_usage); + } + argc--; + argv++; + sfd = socket(AF_INET, SOCK_STREAM, 0); - hostinfo = (struct hostent *) gethostbyname(argv[1]); + hostinfo = (struct hostent *) gethostbyname(*argv); if (!hostinfo) { @@ -67,7 +73,7 @@ mnc_main(int argc, char **argv) address.sin_family = AF_INET; address.sin_addr = *(struct in_addr *) *hostinfo->h_addr_list; - address.sin_port = htons(atoi(argv[2])); + address.sin_port = htons(atoi(*(++argv))); len = sizeof(address); -- cgit v1.2.3-55-g6feb