From 4c1820493860d57ba9b98760762e947a4367e34b Mon Sep 17 00:00:00 2001
From: KaranveerB <5110-karanveerb@users.noreply.gitlab.archlinux.org>
Date: Sat, 3 Aug 2024 16:10:30 -0700
Subject: [PATCH] pacman/util.c: fix segfault when replace in strreplace is
 NULL

---
 src/pacman/util.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/pacman/util.c b/src/pacman/util.c
index ebc21040..0736b8d6 100644
--- a/src/pacman/util.c
+++ b/src/pacman/util.c
@@ -363,12 +363,16 @@ char *strreplace(const char *str, const char *needle, const char *replace)
 	const char *p = NULL, *q = NULL;
 	char *newstr = NULL, *newp = NULL;
 	alpm_list_t *i = NULL, *list = NULL;
-	size_t needlesz = strlen(needle), replacesz = strlen(replace);
+	size_t needlesz = strlen(needle), replacesz;
 	size_t newsz;
 
 	if(!str) {
 		return NULL;
 	}
+	if(!replace) {
+		replace = "";
+	}
+	replacesz = strlen(replace);
 
 	p = str;
 	q = strstr(p, needle);