diff options
Diffstat (limited to 'src/core/security/base64.c')
| -rw-r--r-- | src/core/security/base64.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/core/security/base64.c b/src/core/security/base64.c index 8dfaef846f..5226d2c578 100644 --- a/src/core/security/base64.c +++ b/src/core/security/base64.c @@ -125,13 +125,14 @@ gpr_slice grpc_base64_decode(const char *b64, int url_safe) { static void decode_one_char(const unsigned char *codes, unsigned char *result, size_t *result_offset) { - gpr_uint32 packed = (codes[0] << 2) | (codes[1] >> 4); + gpr_uint32 packed = ((gpr_uint32)codes[0] << 2) | ((gpr_uint32)codes[1] >> 4); result[(*result_offset)++] = (unsigned char)packed; } static void decode_two_chars(const unsigned char *codes, unsigned char *result, size_t *result_offset) { - gpr_uint32 packed = (codes[0] << 10) | (codes[1] << 4) | (codes[2] >> 2); + gpr_uint32 packed = ((gpr_uint32)codes[0] << 10) | + ((gpr_uint32)codes[1] << 4) | ((gpr_uint32)codes[2] >> 2); result[(*result_offset)++] = (unsigned char)(packed >> 8); result[(*result_offset)++] = (unsigned char)(packed); } @@ -171,8 +172,9 @@ static int decode_group(const unsigned char *codes, size_t num_codes, decode_two_chars(codes, result, result_offset); } else { /* No padding. */ - gpr_uint32 packed = - (codes[0] << 18) | (codes[1] << 12) | (codes[2] << 6) | codes[3]; + gpr_uint32 packed = ((gpr_uint32)codes[0] << 18) | + ((gpr_uint32)codes[1] << 12) | + ((gpr_uint32)codes[2] << 6) | codes[3]; result[(*result_offset)++] = (unsigned char)(packed >> 16); result[(*result_offset)++] = (unsigned char)(packed >> 8); result[(*result_offset)++] = (unsigned char)(packed); |