From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 30 Sep 2010 05:28:11 +0000 (-0400)
Subject: mtd-utils: add xasprintf() helper
X-Git-Tag: v1.4.2~47
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7a44e55045954ea0af06ab98ccfb41b18c1747f2;p=mtd-utils.git

mtd-utils: add xasprintf() helper

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---

diff --git a/include/xalloc.h b/include/xalloc.h
index 5d145d9..d49a1ae 100644
--- a/include/xalloc.h
+++ b/include/xalloc.h
@@ -77,4 +77,24 @@ static char *xstrdup(const char *s)
 	return t;
 }
 
+#ifdef _GNU_SOURCE
+#include <stdarg.h>
+
+__attribute__((unused))
+static int xasprintf(char **strp, const char *fmt, ...)
+{
+	int cnt;
+	va_list ap;
+
+	va_start(ap, fmt);
+	cnt = vasprintf(strp, fmt, ap);
+	va_end(ap);
+
+	if (cnt == -1)
+		sys_errmsg_die("asprintf(...) failed");
+
+	return cnt;
+}
+#endif
+
 #endif /* !__MTD_UTILS_XALLOC_H__ */