comment fudan check possibilities

[proxmark3-svn] / armsrc / string.c

diff --git a/armsrc/string.c b/armsrc/string.c
index cc71276ce2c39f5416e9bd364c9926f68a41e05e..945a4cf6d0dae98a8d58c513120673e57f5735f4 100644 (file)
--- a/armsrc/string.c
+++ b/armsrc/string.c
@@ -48,6 +48,11 @@ int memcmp(const void *av, const void *bv, int len)
        return 0;
 }
 
        return 0;
 }
 

+void memxor(uint8_t * dest, uint8_t * src, size_t len) {
+   for( ; len > 0; len--,dest++,src++)
+       *dest ^= *src;
+}
+

 int strlen(const char *str)
 {
        int l = 0;
 int strlen(const char *str)
 {
        int l = 0;