Avoid more gcc warning about not checking return values ...

4 files changed, 21 insertions, 12 deletions

diff --git a/src/rc/rc-logger.c b/src/rc/rc-logger.c
index f0320778..0f2c1f95 100644
--- a/src/rc/rc-logger.c
+++ b/src/rc/rc-logger.c
@@ -100,8 +100,9 @@ write_log(int logfd, const char *buffer, size_t bytes)
 			break;
 		}
 
-		if (! in_escape) {
-			write(logfd, p++, 1);
+		if (!in_escape) {
+			if (write(logfd, p++, 1) == -1)
+				eerror("write: %s", strerror(errno));
 			continue;
 		}
 
@@ -128,7 +129,8 @@ rc_logger_close(void)
 	int sig = SIGTERM;
 
 	if (signal_pipe[1] > -1) {
-		write(signal_pipe[1], &sig, sizeof(sig));
+		if (write(signal_pipe[1], &sig, sizeof(sig)) == -1)
+			eerror("write: %s", strerror(errno));
 		close(signal_pipe[1]);
 		signal_pipe[1] = -1;
 	}
@@ -218,7 +220,8 @@ rc_logger_open(const char *level)
 			if (fd[1].revents & (POLLIN | POLLHUP)) {
 				memset(buffer, 0, BUFSIZ);
 				bytes = read(rc_logger_tty, buffer, BUFSIZ);
-				write(STDOUT_FILENO, buffer, bytes);
+				if (write(STDOUT_FILENO, buffer, bytes) == -1)
+					eerror("write: %s", strerror(errno));
 
 				if (log)
 					write_log(fileno (log), buffer, bytes);
@@ -255,7 +258,8 @@ rc_logger_open(const char *level)
 
 		/* Try and cat our new logfile to a more permament location
 		   and then punt it */
-		system(MOVELOG);
+		if (system(MOVELOG) == -1)
+			eerror("system: %s: %s", MOVELOG, strerror(errno));
 		exit(0);
 		/* NOTREACHED */
 
diff --git a/src/rc/rc.c b/src/rc/rc.c
index 9b4a7e5c..405ea542 100644
--- a/src/rc/rc.c
+++ b/src/rc/rc.c
@@ -191,8 +191,10 @@ proc_getent(const char *ent)
 	}
 
 	memset(proc, 0, sizeof(proc));
-	fgets(proc, sizeof(proc), fp);
-	if (*proc && (p = strstr(proc, ent))) {
+	p = fgets(proc, sizeof(proc), fp);
+	if (p == NULL)
+		eerror("fgets: %s", strerror(errno));
+	else if (*proc && (p = strstr(proc, ent))) {
 		i = p - proc;
 		if (i == '\0' || proc[i - 1] == ' ') {
 			p += strlen(ent);
@@ -234,7 +236,8 @@ read_key(bool block)
 		termios.c_cc[VTIME] = 0;
 	}
 	tcsetattr(fd, TCSANOW, &termios);
-	read(fd, &c, 1);
+	if (read(fd, &c, 1) == -1)
+		eerror("read: %s", strerror(errno));
 	tcsetattr(fd, TCSANOW, termios_orig);
 	return c;
 }
@@ -840,7 +843,8 @@ main(int argc, char **argv)
 	argv++;
 
 	/* Change dir to / to ensure all scripts don't use stuff in pwd */
-	chdir("/");
+	if (chdir("/") == -1)
+		eerror("chdir: %s", strerror(errno));
 
 	/* Ensure our environment is pure
 	 * Also, add our configuration to it */
diff --git a/src/rc/runscript.c b/src/rc/runscript.c
index 5dab6763..58067a71 100644
--- a/src/rc/runscript.c
+++ b/src/rc/runscript.c
@@ -1106,7 +1106,8 @@ runscript(int argc, char **argv)
 		usage(EXIT_FAILURE);
 
 	/* Change dir to / to ensure all init scripts don't use stuff in pwd */
-	chdir("/");
+	if (chdir("/") == -1)
+		eerror("chdir: %s", strerror(errno));
 
 	if ((runlevel = xstrdup(getenv("RC_RUNLEVEL"))) == NULL) {
 		env_filter();
diff --git a/src/rc/start-stop-daemon.c b/src/rc/start-stop-daemon.c
index 8237e1e8..1952154a 100644
--- a/src/rc/start-stop-daemon.c
+++ b/src/rc/start-stop-daemon.c
@@ -960,9 +960,9 @@ start_stop_daemon(int argc, char **argv)
 	if (interpreted && !pidfile) {
 		fp = fopen(exec_file, "r");
 		if (fp) {
-			fgets(line, sizeof(line), fp);
+			p = fgets(line, sizeof(line), fp);
 			fclose(fp);
-			if (line[0] == '#' && line[1] == '!') {
+			if (p != NULL && line[0] == '#' && line[1] == '!') {
 				p = line + 2;
 				/* Strip leading spaces */
 				while (*p == ' ' || *p == '\t')