From: Steven Barth <steven@midlink.org>
Date: Sun, 16 Feb 2014 11:16:57 +0000 (+0100)
Subject: Work around warn_unused_result in recent gcc/libc
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e3dc49a34fdd0dd900271cdfe6bb1c05babe5ee6;p=oweals%2Fnetifd.git

Work around warn_unused_result in recent gcc/libc
---

diff --git a/handler.c b/handler.c
index f4e27e1..c5e47ad 100644
--- a/handler.c
+++ b/handler.c
@@ -27,14 +27,14 @@ netifd_dir_push(int fd)
 	int prev_fd = open(".", O_RDONLY | O_DIRECTORY);
 	system_fd_set_cloexec(prev_fd);
 	if (fd >= 0)
-		fchdir(fd);
+		if (fchdir(fd)) {}
 	return prev_fd;
 }
 
 static void
 netifd_dir_pop(int prev_fd)
 {
-	fchdir(prev_fd);
+	if (fchdir(prev_fd)) {}
 	close(prev_fd);
 }
 
diff --git a/main.c b/main.c
index d8cb17f..43ec24f 100644
--- a/main.c
+++ b/main.c
@@ -152,7 +152,7 @@ netifd_start_process(const char **argv, char **env, struct netifd_process *proc)
 			}
 		}
 		if (proc->dir_fd >= 0)
-			fchdir(proc->dir_fd);
+			if (fchdir(proc->dir_fd)) {}
 
 		close(pfds[0]);
 
diff --git a/system-linux.c b/system-linux.c
index e1b9924..cbcc5bd 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -156,7 +156,7 @@ static void system_set_sysctl(const char *path, const char *val)
 	if (fd < 0)
 		return;
 
-	write(fd, val, strlen(val));
+	if (write(fd, val, strlen(val))) {}
 	close(fd);
 }
 
@@ -1135,7 +1135,7 @@ int system_flush_routes(void)
 		if (fd < 0)
 			continue;
 
-		write(fd, "-1", 2);
+		if (write(fd, "-1", 2)) {}
 		close(fd);
 	}
 	return 0;