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-rw-r--r--include/xalloc.h20
1 files changed, 20 insertions, 0 deletions
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__ */