From: Michal Sojka <sojkam1@fel.cvut.cz>
Date: Thu, 20 Dec 2012 16:31:22 +0000 (+0100)
Subject: Use perror() to print error messages
X-Git-Url: http://rtime.felk.cvut.cz/gitweb/can-eth-gw.git/commitdiff_plain/8cff141671954154e4a2e7b8bb5b7d853aeae7fc

Use perror() to print error messages
---

diff --git a/utils/cegw/cegw.c b/utils/cegw/cegw.c
index 5a9627a..0efadc2 100644
--- a/utils/cegw/cegw.c
+++ b/utils/cegw/cegw.c
@@ -187,13 +187,13 @@ int main(int argc, char* argv[])
 	/* prepare udp socket */
 	udp_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
 	if (udp_sock == -1) {
-		fprintf(stderr, "error: udp socket(..) failed\n");
+		perror("udp socket()");
 		free(gwctl);
 		return -1;
 	}
 
 	if (bind(udp_sock, (struct sockaddr *)&udp_addr, sizeof(struct sockaddr_in)) != 0) {
-		fprintf(stderr, "error: udp bind(..) failed\n");
+		perror("bind(udp)");
 		free(gwctl);
 		return -1;
 	}
@@ -201,13 +201,13 @@ int main(int argc, char* argv[])
 	/* prepare can socket */
 	can_sock = socket(PF_CAN, SOCK_RAW, CAN_RAW);
 	if (can_sock == -1) {
-		fprintf(stderr, "error: can socket(..) failed\n");
+		perror("can socket()");
 		free(gwctl);
 		return -1;
 	}
 
 	if (bind(can_sock, (struct sockaddr *)&can_addr, sizeof(struct sockaddr_can)) != 0) {
-		fprintf(stderr, "error: can bind(..) failed\n");
+		perror("bind(can)");
 		free(gwctl);
 		return -1;
 	}
@@ -215,7 +215,7 @@ int main(int argc, char* argv[])
 	/* send it to kernel gateway */
 	fd = open("/dev/canethgw", O_RDONLY);
 	if (fd == -1) {
-		fprintf(stderr, "error: could not open device file\n");
+		perror("/dev/canethgw");
 		free(gwctl);
 		return -1;
 	}