diff options
Diffstat (limited to 'tools/firmware-utils/src/xorimage.c')
| -rw-r--r-- | tools/firmware-utils/src/xorimage.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/tools/firmware-utils/src/xorimage.c b/tools/firmware-utils/src/xorimage.c index 4d1cd2d5de..e13531ab4a 100644 --- a/tools/firmware-utils/src/xorimage.c +++ b/tools/firmware-utils/src/xorimage.c @@ -29,15 +29,17 @@ static char default_pattern[] = "12345678"; static int is_hex_pattern; -int xor_data(uint8_t *data, size_t len, const uint8_t *pattern, int p_len, int p_off) +int xor_data(void *data, size_t len, const void *pattern, int p_len, int p_off) { - int offset = p_off; + const uint8_t *key = pattern; + uint8_t *d = data; + while (len--) { - *data ^= pattern[offset]; - data++; - offset = (offset + 1) % p_len; + *d ^= key[p_off]; + d++; + p_off = (p_off + 1) % p_len; } - return offset; + return p_off; } |