Warn when xy_strdup() called with NULL

2026-03-05 13:50:51 +08:00 · 2025-08-09 19:38:14 +08:00
parent ca6498b547
commit 4ff53269f0
1 changed files with 6 additions and 0 deletions
--- a/lib/xy.h
+++ b/lib/xy.h
@@ -287,6 +287,12 @@ xy_strjoin (unsigned int count, ...)
 static char *
 xy_strdup (const char *str)
 {
+  if (!str)
+    {
+      fprintf (stderr, "xy.h: xy_strdup() called with NULL!");
+      return NULL;
+    }
+
  size_t len = strlen (str);
  char *new = xy_malloc0 (len + 1);
  strcpy (new, str);