git-receiver: make: runserver: improved realpath(3) usage

2 files changed, 7 insertions, 3 deletions

diff --git a/src/blogc-git-receiver/post-receive.c b/src/blogc-git-receiver/post-receive.c
index 3b0f48c..3c7cb00 100644
--- a/src/blogc-git-receiver/post-receive.c
+++ b/src/blogc-git-receiver/post-receive.c
@@ -6,6 +6,8 @@
  * See the file LICENSE.
  */
 
+#include <errno.h>
+#include <string.h>
 #include <stdio.h>
 #include <libgen.h>
 #include <unistd.h>
@@ -25,7 +27,8 @@ bgr_post_receive_hook(int argc, char *argv[])
     char *hooks_dir = dirname(argv[0]);  // this was validated by main()
     char *real_hooks_dir = realpath(hooks_dir, NULL);
     if (real_hooks_dir == NULL) {
-        fprintf(stderr, "error: failed to guess repository root.\n");
+        fprintf(stderr, "error: failed to guess repository root: %s\n",
+            strerror(errno));
         return 3;
     }
 
diff --git a/src/blogc-git-receiver/pre-receive.c b/src/blogc-git-receiver/pre-receive.c
index ab95fd4..12be165 100644
--- a/src/blogc-git-receiver/pre-receive.c
+++ b/src/blogc-git-receiver/pre-receive.c
@@ -101,7 +101,8 @@ bgr_pre_receive_hook(int argc, char *argv[])
     char *hooks_dir = dirname(argv[0]);  // this was validated by main()
     char *real_hooks_dir = realpath(hooks_dir, NULL);
     if (real_hooks_dir == NULL) {
-        fprintf(stderr, "error: failed to guess repository root.\n");
+        fprintf(stderr, "error: failed to guess repository root: %s\n",
+            strerror(errno));
         return 3;
     }
 
@@ -152,7 +153,7 @@ default_sym:
         char *build_dir = realpath(sym, NULL);
         if (build_dir == NULL) {
             fprintf(stderr, "error: failed to get the hash of last built "
-                "commit.\n");
+                "commit: %s\n", strerror(errno));
             rv = 3;
             goto cleanup;
         }