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authorEric Andersen1999-11-13 04:47:09 +0000
committerEric Andersen1999-11-13 04:47:09 +0000
commitb6a44b8d39b7834ab9f6c43938f4b58f135e846e (patch)
treed9bd903d4e30ea4faf1977a514853c5aac83690c /mnc.c
parenteded54bd96ed0394844f9ba23c5ab54dff8a917f (diff)
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updates for the day
Diffstat (limited to 'mnc.c')
-rw-r--r--mnc.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/mnc.c b/mnc.c
index a9e66be..81dfd25 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);