From: Colin Walters <walters@verbum.org>
Date: Tue, 30 Apr 2013 17:11:49 +0000 (-0400)
Subject: util: Add _sentinel_ to strextend()
X-Git-Tag: v203~49
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=a432cb691ca3c1e18b012cb8e9f6e5654b3652a2

util: Add _sentinel_ to strextend()

Since it must be NULL terminated.
---

diff --git a/src/shared/util.h b/src/shared/util.h
index 5d1b0b1c3..eee66ccf6 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -633,7 +633,7 @@ static inline void *mempset(void *s, int c, size_t n) {
 char *hexmem(const void *p, size_t l);
 void *unhexmem(const char *p, size_t l);
 
-char *strextend(char **x, ...);
+char *strextend(char **x, ...) _sentinel_;
 char *strrep(const char *s, unsigned n);
 
 void* greedy_realloc(void **p, size_t *allocated, size_t need);