In recent Fedora builds, the '-D _FORTIFY_SOURCE=2' compile

flag has been set. This cause warnings to be generated when
return values from reads/writes (and other calls) are not
checked. The patch address those warnings.

Signed-off-by: Steve Dickson <steved@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/utils/idmapd/idmapd.c b/utils/idmapd/idmapd.c
index c1cf4eb..b690e21 100644
--- a/utils/idmapd/idmapd.c
+++ b/utils/idmapd/idmapd.c
@@ -169,7 +169,10 @@ flush_nfsd_cache(char *path, time_t now)
 	fd = open(path, O_RDWR);
 	if (fd == -1)
 		return -1;
-	write(fd, stime, strlen(stime));
+	if (write(fd, stime, strlen(stime)) != strlen(stime)) {
+		errx(1, "Flushing nfsd cache failed: errno %d (%s)",
+			errno, strerror(errno));
+	}
 	close(fd);
 	return 0;
 }
@@ -988,7 +991,10 @@ release_parent(void)
 	int status;
 
 	if (pipefds[1] > 0) {
-		write(pipefds[1], &status, 1);
+		if (write(pipefds[1], &status, 1) != 1) {
+			err(1, "Writing to parent pipe failed: errno %d (%s)\n",
+				errno, strerror(errno));
+		}
 		close(pipefds[1]);
 		pipefds[1] = -1;
 	}