Avoid clobbering errno in warning().

2021-05-01 11:35:19 -06:00
parent bc82430a6f
commit 9077daee93
1 changed files with 4 additions and 0 deletions
--- a/lib/util/fatal.c
+++ b/lib/util/fatal.c
@@ -183,6 +183,7 @@ static void
 warning(const char *errstr, const char *fmt, va_list ap)
 {
    int cookie;
+    const int saved_errno = errno;

    /* Set user locale if setter was specified. */
    if (sudo_warn_setlocale != NULL)
@@ -246,6 +247,9 @@ warning(const char *errstr, const char *fmt, va_list ap)
    /* Restore old locale as needed. */
    if (sudo_warn_setlocale != NULL)
 	sudo_warn_setlocale(true, &cookie);
+
+    /* Do not clobber errno. */
+    errno = saved_errno;
 }

 /*