From: Cheoleun Moon <chleun.moon@samsung.com>
Date: Tue, 19 May 2020 12:03:51 +0000 (+0900)
Subject: Print errno when socket and ioctl fail
X-Git-Tag: submit/tizen/20200602.082342~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F40%2F235040%2F1;p=platform%2Fcore%2Fconnectivity%2Fnet-config.git

Print errno when socket and ioctl fail

Change-Id: I29f6264dd8db405405494f360c9543a33d342bb9
Signed-off-by: Cheoleun Moon <chleun.moon@samsung.com>
---

diff --git a/src/utils/util.c b/src/utils/util.c
index f113032..26beb05 100755
--- a/src/utils/util.c
+++ b/src/utils/util.c
@@ -370,19 +370,23 @@ gboolean netconfig_interface_up(const char *ifname)
 	struct ifreq ifr;
 
 	fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
-	if (fd < 0)
+	if (fd < 0) {
+		ERR("socket failed %d", errno);
 		return FALSE;
+	}
 
 	memset(&ifr, 0, sizeof(ifr));
 	g_strlcpy((char *)ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 
 	if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
+		ERR("Fail to get IFFLAGS %d", errno);
 		close(fd);
 		return FALSE;
 	}
 
 	ifr.ifr_flags |= (IFF_UP | IFF_DYNAMIC);
 	if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
+		ERR("Fail to set IFFLAGS %d", errno);
 		close(fd);
 		return FALSE;
 	}
@@ -399,19 +403,23 @@ gboolean netconfig_interface_down(const char *ifname)
 	struct ifreq ifr;
 
 	fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
-	if (fd < 0)
+	if (fd < 0) {
+		ERR("socket failed %d", errno);
 		return FALSE;
+	}
 
 	memset(&ifr, 0, sizeof(ifr));
 	g_strlcpy((char *)ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 
 	if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
+		ERR("Fail to get IFFLAGS %d", errno);
 		close(fd);
 		return FALSE;
 	}
 
 	ifr.ifr_flags = (ifr.ifr_flags & ~IFF_UP) | IFF_DYNAMIC;
 	if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
+		ERR("Fail to set IFFLAGS %d", errno);
 		close(fd);
 		return FALSE;
 	}