"nc" exits silently on errors. This patch makes it print something before

exit().

Note that calling perror() after gethostbyname() will most likely return
"No such file or directory" which is quite confusing, so I decided to use
fatalError instead.

Regards,
Pavel Roskin

2 files changed, 6 insertions, 2 deletions

diff --git a/nc.c b/nc.c
index a588587..a7e48d3 100644
--- a/nc.c
+++ b/nc.c
@@ -69,7 +69,7 @@ int nc_main(int argc, char **argv)
 	hostinfo = (struct hostent *) gethostbyname(*argv);
 
 	if (!hostinfo) {
-		exit(1);
+		fatalError("nc: cannot resolve %s\n", *argv);
 	}
 
 	address.sin_family = AF_INET;
@@ -81,6 +81,7 @@ int nc_main(int argc, char **argv)
 	result = connect(sfd, (struct sockaddr *) &address, len);
 
 	if (result < 0) {
+		perror("nc: connect");
 		exit(2);
 	}
 
@@ -100,6 +101,7 @@ int nc_main(int argc, char **argv)
 				   (struct timeval *) 0);
 
 		if (result < 1) {
+			perror("nc: select");
 			exit(3);
 		}
 
diff --git a/networking/nc.c b/networking/nc.c
index a588587..a7e48d3 100644
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -69,7 +69,7 @@ int nc_main(int argc, char **argv)
 	hostinfo = (struct hostent *) gethostbyname(*argv);
 
 	if (!hostinfo) {
-		exit(1);
+		fatalError("nc: cannot resolve %s\n", *argv);
 	}
 
 	address.sin_family = AF_INET;
@@ -81,6 +81,7 @@ int nc_main(int argc, char **argv)
 	result = connect(sfd, (struct sockaddr *) &address, len);
 
 	if (result < 0) {
+		perror("nc: connect");
 		exit(2);
 	}
 
@@ -100,6 +101,7 @@ int nc_main(int argc, char **argv)
 				   (struct timeval *) 0);
 
 		if (result < 1) {
+			perror("nc: select");
 			exit(3);
 		}