From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sat, 11 Jan 2025 14:35:14 +0000 (+0000)
Subject: parser: Stop expanding variables if the string becomes empty
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=91ced353a0c182b05e02bad817a52e8d8f0f0ae5;p=people%2Fric9%2Fpakfire.git

parser: Stop expanding variables if the string becomes empty

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/pakfire/parser.c b/src/pakfire/parser.c
index 0614cd73e..0433e63d4 100644
--- a/src/pakfire/parser.c
+++ b/src/pakfire/parser.c
@@ -511,7 +511,7 @@ static int pakfire_parser_expand_commands(struct pakfire_parser* parser, char**
 		"/bin/sh", "-c", NULL /* will be replaced by command later */, NULL,
 	};
 
-	for (;;) {
+	while (buffer && *buffer) {
 		// Perform matching
 		r = pcre2_jit_match(regexes.command,
 			(PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL);
@@ -621,7 +621,7 @@ static int pakfire_parser_expand_variables(struct pakfire_parser* parser,
 	match = pcre2_match_data_create_from_pattern(regexes.variable, NULL);
 
 	// Search for any variables
-	for (;;) {
+	while (buffer && *buffer) {
 		// Perform matching
 		r = pcre2_jit_match(regexes.variable,
 			(PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL);