From: Pierre Habouzit <madcoder@debian.org>
Date: Mon, 30 Oct 2006 16:48:38 +0000 (+0100)
Subject: make m_dupstr return NULL if the string was empty.
X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=commitdiff_plain;h=b07d69b15852a06183f7b2298436e18150c36958;hp=d9960a434f5c00a534a0dabe02ae5ab8d4881569

make m_dupstr return NULL if the string was empty.
---

diff --git a/lib-lib/str.h b/lib-lib/str.h
index 4ef9d48..8850830 100644
--- a/lib-lib/str.h
+++ b/lib-lib/str.h
@@ -37,7 +37,8 @@ static inline ssize_t m_strnlen(const char *s, ssize_t n) {
 }
 
 static inline char *m_strdup(const char *s) {
-    return p_dupstr(s, m_strlen(s));
+    ssize_t len = m_strlen(s);
+    return len ? p_dup(s, len + 1) : NULL;
 }
 
 static inline int m_strcmp(const char *a, const char *b) {