[LEDE-DEV] [PATCH] luci: treewide: Replace strerror(errno) with %m.

[Rosen Penev]

Saves a few bytes. No functional difference.

Signed-off-by: Rosen Penev <rosenp at gmail.com>
---
 contrib/package/freifunk-watchdog/src/watchdog.c |  6 ++---
 contrib/package/freifunk-watchdog/src/watchdog.h |  6 ++---
 modules/luci-mod-admin-full/src/luci-bwc.c       | 31 ++++++++++++------------
 3 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/contrib/package/freifunk-watchdog/src/watchdog.c b/contrib/package/freifunk-watchdog/src/watchdog.c
index f546985..3e46668 100644
--- a/contrib/package/freifunk-watchdog/src/watchdog.c
+++ b/contrib/package/freifunk-watchdog/src/watchdog.c
@@ -153,8 +153,7 @@ static int find_process(const char *name)
 		return pid;
 	}
 
-	syslog(LOG_CRIT, "Unable to open /proc: %s",
-		strerror(errno));
+	syslog(LOG_CRIT, "Unable to open /proc: %m");
 
 	return -1;
 }
@@ -381,8 +380,7 @@ static int do_daemon(void)
 
 	if( (iwfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1 )
 	{
-		syslog(LOG_ERR, "Can not open wireless control socket: %s",
-			strerror(errno));
+		syslog(LOG_ERR, "Can not open wireless control socket: %m");
 
 		return 1;
 	}
diff --git a/contrib/package/freifunk-watchdog/src/watchdog.h b/contrib/package/freifunk-watchdog/src/watchdog.h
index 6f2382d..d13bbd9 100644
--- a/contrib/package/freifunk-watchdog/src/watchdog.h
+++ b/contrib/package/freifunk-watchdog/src/watchdog.h
@@ -128,14 +128,12 @@ iw_ioctl(int                  skfd,           /* Socket to the kernel */
 		switch(fork())												\
 		{															\
 			case -1:												\
-				syslog(LOG_CRIT, "Unable to fork child: %s",		\
-					strerror(errno));								\
+				syslog(LOG_CRIT, "Unable to fork child: %m");		\
 				break;												\
 																	\
 			case 0:													\
 				execl(x, NULL);										\
-				syslog(LOG_CRIT, "Unable to execute action: %s",	\
-					strerror(errno));								\
+				syslog(LOG_CRIT, "Unable to execute action: %m");	\
 				return 1;											\
 		}															\
 	} while(0)
diff --git a/modules/luci-mod-admin-full/src/luci-bwc.c b/modules/luci-mod-admin-full/src/luci-bwc.c
index 8ddd917..2d1cc6d 100644
--- a/modules/luci-mod-admin-full/src/luci-bwc.c
+++ b/modules/luci-mod-admin-full/src/luci-bwc.c
@@ -309,8 +309,8 @@ static int update_ifstat(
 	{
 		if (init_file(path, sizeof(struct traffic_entry)))
 		{
-			fprintf(stderr, "Failed to init %s: %s\n",
-					path, strerror(errno));
+			fprintf(stderr, "Failed to init %s: %m\n",
+					path);
 
 			return -1;
 		}
@@ -339,8 +339,8 @@ static int update_radiostat(
 	{
 		if (init_file(path, sizeof(struct radio_entry)))
 		{
-			fprintf(stderr, "Failed to init %s: %s\n",
-					path, strerror(errno));
+			fprintf(stderr, "Failed to init %s: %m\n",
+					path);
 
 			return -1;
 		}
@@ -367,8 +367,8 @@ static int update_cnstat(uint32_t udp, uint32_t tcp, uint32_t other)
 	{
 		if (init_file(path, sizeof(struct conn_entry)))
 		{
-			fprintf(stderr, "Failed to init %s: %s\n",
-					path, strerror(errno));
+			fprintf(stderr, "Failed to init %s: %m\n",
+					path);
 
 			return -1;
 		}
@@ -395,8 +395,8 @@ static int update_ldstat(uint16_t load1, uint16_t load5, uint16_t load15)
 	{
 		if (init_file(path, sizeof(struct load_entry)))
 		{
-			fprintf(stderr, "Failed to init %s: %s\n",
-					path, strerror(errno));
+			fprintf(stderr, "Failed to init %s: %m\n",
+					path);
 
 			return -1;
 		}
@@ -459,7 +459,7 @@ static int run_daemon(void)
 	/* write pid */
 	if (writepid())
 	{
-		fprintf(stderr, "Failed to write pid file: %s\n", strerror(errno));
+		fprintf(stderr, "Failed to write pid file: %m\n");
 		return 1;
 	}
 
@@ -574,15 +574,14 @@ static void check_daemon(void)
 		if (run_daemon())
 		{
 			fprintf(stderr,
-				"Failed to ping daemon and unable to start it up: %s\n",
-				strerror(errno));
+				"Failed to ping daemon and unable to start it up: %m\n");
 
 			exit(1);
 		}
 	}
 	else if (kill(pid, SIGUSR1))
 	{
-		fprintf(stderr, "Failed to send signal: %s\n", strerror(errno));
+		fprintf(stderr, "Failed to send signal: %m\n");
 		exit(2);
 	}
 }
@@ -599,7 +598,7 @@ static int run_dump_ifname(const char *ifname)
 
 	if (mmap_file(path, sizeof(struct traffic_entry), &m))
 	{
-		fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+		fprintf(stderr, "Failed to open %s: %m\n", path);
 		return 1;
 	}
 
@@ -635,7 +634,7 @@ static int run_dump_radio(const char *ifname)
 
 	if (mmap_file(path, sizeof(struct radio_entry), &m))
 	{
-		fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+		fprintf(stderr, "Failed to open %s: %m\n", path);
 		return 1;
 	}
 
@@ -669,7 +668,7 @@ static int run_dump_conns(void)
 
 	if (mmap_file(path, sizeof(struct conn_entry), &m))
 	{
-		fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+		fprintf(stderr, "Failed to open %s: %m\n", path);
 		return 1;
 	}
 
@@ -703,7 +702,7 @@ static int run_dump_load(void)
 
 	if (mmap_file(path, sizeof(struct load_entry), &m))
 	{
-		fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
+		fprintf(stderr, "Failed to open %s: %m\n", path);
 		return 1;
 	}
 
-- 
2.7.4