fix: make getcwd report truncated buffers as ERANGE

2026-08-09 12:16:57 +02:00
parent 1c498ffa6a
commit 0b7fd37694
4 changed files with 15 additions and 7 deletions
@@ -2286,8 +2286,9 @@ char *getcwd(char *buf, size_t size) {
        errno = EINVAL;
        return NULL;
    }
-    if ((int)_zos_syscall2(SYS_GETCWD, (long)buf, (long)size) < 0) {
-        errno = ERANGE;
+    int result = (int)_zos_syscall2(SYS_GETCWD, (long)buf, (long)size);
+    if (result < 0) {
+        errno = result == -2 ? ERANGE : EIO;
        return NULL;
    }
    return buf;