From 8b57a81577980e4b440addaa8f2bbed454be2a59 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 17 Apr 2012 13:17:01 -0400
Subject: [PATCH] avoid depending on POSIX symbol in code used from plain C
 functions

---
 src/stdio/__string_read.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/stdio/__string_read.c b/src/stdio/__string_read.c
index 5c3728d7..de002fc1 100644
--- a/src/stdio/__string_read.c
+++ b/src/stdio/__string_read.c
@@ -3,7 +3,9 @@
 size_t __string_read(FILE *f, unsigned char *buf, size_t len)
 {
 	char *src = f->cookie;
-	size_t k = strnlen(src, len+256);
+	size_t k = len+256;
+	char *end = memchr(src, 0, k);
+	if (end) k = end-src;
 	if (k < len) len = k;
 	memcpy(buf, src, len);
 	f->rpos = (void *)(src+len);
-- 
2.25.1