Always check the result of stat() system calls

diff --git a/ccache.c b/ccache.c
index 5e904d814335e2d92acbed993ebb779f2f112042..41bda17c842b2a20d18e1bf345f9088d48cb0dbd 100644 (file)
--- a/ccache.c
+++ b/ccache.c
@@ -767,8 +767,11 @@ void update_manifest_file(void)
        if (manifest_put(manifest_path, cached_obj_hash, included_files)) {
                cc_log("Added object file hash to %s", manifest_path);
                update_mtime(manifest_path);
-               stat(manifest_path, &st);
-               stats_update_size(file_size(&st) - old_size, old_size == 0 ? 1 : 0);
+               if (stat(manifest_path, &st) == 0) {
+                       stats_update_size(file_size(&st) - old_size, old_size == 0 ? 1 : 0);
+               } else {
+                       cc_log("Failed to stat %s: %s", manifest_path, strerror(errno));
+               }
        } else {
                cc_log("Failed to add object file hash to %s", manifest_path);
        }
@@ -916,9 +919,15 @@ to_cache(struct args *args)
                }
                cc_log("Stored in cache: %s", cached_stderr);
                if (conf->compression) {
-                       stat(cached_stderr, &st);
+                       /* The file was compressed, so obtain the size again. */
+                       if (stat(cached_stderr, &st) == 0) {
+                               stats_update_size(file_size(&st), 1);
+                       } else {
+                               cc_log("Failed to stat %s: %s", cached_stderr, strerror(errno));
+                       }
+               } else {
+                       stats_update_size(file_size(&st), 1);
                }
-               stats_update_size(file_size(&st), 1);
        } else {
                tmp_unlink(tmp_stderr);
                if (conf->recache) {