From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Fri, 17 Sep 2021 13:11:12 +0000 (+0300)
Subject: lib: Optimize str_tabescape()
X-Git-Tag: 2.3.17~92
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ba465f3a042e74464085768f116dd64437bfa260;p=thirdparty%2Fdovecot%2Fcore.git

lib: Optimize str_tabescape()
---

diff --git a/src/lib/strescape.c b/src/lib/strescape.c
index 54d44ec235..bfa4473c71 100644
--- a/src/lib/strescape.c
+++ b/src/lib/strescape.c
@@ -172,13 +172,11 @@ const char *str_tabescape(const char *str)
 	string_t *tmp;
 	const char *p;
 
-	for (p = str; *p != '\0'; p++) {
-		if (*p <= '\r') {
-			tmp = t_str_new(128);
-			str_append_data(tmp, str, p-str);
-			str_append_tabescaped(tmp, p);
-			return str_c(tmp);
-		}
+	if ((p = strpbrk(str, "\001\t\r\n")) != NULL) {
+		tmp = t_str_new(128);
+		str_append_data(tmp, str, p-str);
+		str_append_tabescaped(tmp, p);
+		return str_c(tmp);
 	}
 	return str;
 }