rpmkeys: exit non-zero on I/O errors

If writing to stdout or stderr fails, rpmkeys should exit with a
non-zero status code.

1 files changed, 4 insertions, 0 deletions

diff --git a/rpmkeys.c b/rpmkeys.c
index 542601c87..2c304de20 100644
--- a/rpmkeys.c
+++ b/rpmkeys.c
@@ -86,5 +86,9 @@ int main(int argc, char *argv[])
 exit:
     rpmtsFree(ts);
     rpmcliFini(optCon);
+    fflush(stderr);
+    fflush(stdout);
+    if (ferror(stdout) || ferror(stderr))
+	return 255; /* I/O error */
     return ec;
 }