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authorSascha Hauer <s.hauer@pengutronix.de>2014-12-08 10:05:07 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2015-01-05 11:30:58 +0100
commitc20983fad59b733e98f253fbc8c1802ef66bba09 (patch)
tree8ba217a3ab302f513bc137e2c47a1a7b1ab1545c /pbl
parent631be8e6cbe003f469a7e6b54046a743b710d989 (diff)
downloadbarebox-c20983fad59b733e98f253fbc8c1802ef66bba09.tar.gz
PBL: Add strnlen, needed for printf support
vsprintf needs strnlen, so in oder to add console support to the PBL we need a strnlen implementation. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'pbl')
-rw-r--r--pbl/string.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/pbl/string.c b/pbl/string.c
index b773f5c..927c92d 100644
--- a/pbl/string.c
+++ b/pbl/string.c
@@ -119,3 +119,17 @@ void *memset(void *s, int c, size_t count)
*xs++ = c;
return s;
}
+
+/**
+ * strnlen - Find the length of a length-limited string
+ * @s: The string to be sized
+ * @count: The maximum number of bytes to search
+ */
+size_t strnlen(const char * s, size_t count)
+{
+ const char *sc;
+
+ for (sc = s; count-- && *sc != '\0'; ++sc)
+ /* nothing */;
+ return sc - s;
+}