move simple_itoa to libbb so that others can use it

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/libbb.c b/lib/libbb.c
index 4d532f6161..3d02202634 100644
--- a/lib/libbb.c
+++ b/lib/libbb.c
@@ -114,3 +114,16 @@ char * safe_strncpy(char *dst, const char *src, size_t size)
 }
 EXPORT_SYMBOL(safe_strncpy);
 
+char *simple_itoa(unsigned int i)
+{
+	/* 21 digits plus null terminator, good for 64-bit or smaller ints */
+	static char local[22];
+	char *p = &local[21];
+	*p-- = '\0';
+	do {
+		*p-- = '0' + i % 10;
+		i /= 10;
+	} while (i > 0);
+	return p + 1;
+}
+EXPORT_SYMBOL(simple_itoa);