svcgssd: check the return code from qword_eol() and log failures

[nfs-utils.git] / utils / gssd / svcgssd_proc.c

diff --git a/utils/gssd/svcgssd_proc.c b/utils/gssd/svcgssd_proc.c
index 1d13532be3a8ccac4c1e22d2c34173949f860b66..6f2ba61e31edfc62c5b60bf379c80b0631690299 100644 (file)
--- a/utils/gssd/svcgssd_proc.c
+++ b/utils/gssd/svcgssd_proc.c
@@ -33,6 +33,10 @@
 
 */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* HAVE_CONFIG_H */
+
 #include <sys/param.h>
 #include <sys/stat.h>
 #include <rpc/rpc.h>
@@ -105,6 +109,10 @@ do_svc_downcall(gss_buffer_desc *out_handle, struct svc_cred *cred,
        qword_print(f, fname);
        qword_printhex(f, context_token->value, context_token->length);
        err = qword_eol(f);
+       if (err) {
+               printerr(1, "WARNING: error writing to downcall channel "
+                        "%s: %s\n", SVCGSSD_CONTEXT_CHANNEL, strerror(errno));
+       }
        fclose(f);
        return err;
 out_err: