diff options
Diffstat (limited to 'src/core/transport/chttp2/hpack_parser.c')
| -rw-r--r-- | src/core/transport/chttp2/hpack_parser.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/src/core/transport/chttp2/hpack_parser.c b/src/core/transport/chttp2/hpack_parser.c index 93a452f1fd..9c40e8a4e6 100644 --- a/src/core/transport/chttp2/hpack_parser.c +++ b/src/core/transport/chttp2/hpack_parser.c @@ -1090,7 +1090,8 @@ static void append_bytes(grpc_chttp2_hpack_parser_string *str, str->str = gpr_realloc(str->str, str->capacity); } memcpy(str->str + str->length, data, length); - str->length += length; + GPR_ASSERT(length <= GPR_UINT32_MAX - str->length); + str->length += (gpr_uint32)length; } static int append_string(grpc_chttp2_hpack_parser *p, const gpr_uint8 *cur, @@ -1158,9 +1159,9 @@ static int append_string(grpc_chttp2_hpack_parser *p, const gpr_uint8 *cur, goto b64_byte3; p->base64_buffer |= bits; bits = p->base64_buffer; - decoded[0] = bits >> 16; - decoded[1] = bits >> 8; - decoded[2] = bits; + decoded[0] = (gpr_uint8)(bits >> 16); + decoded[1] = (gpr_uint8)(bits >> 8); + decoded[2] = (gpr_uint8)(bits); append_bytes(str, decoded, 3); goto b64_byte0; } @@ -1190,7 +1191,7 @@ static int finish_str(grpc_chttp2_hpack_parser *p) { bits & 0xffff); return 0; } - decoded[0] = bits >> 16; + decoded[0] = (gpr_uint8)(bits >> 16); append_bytes(str, decoded, 1); break; case B64_BYTE3: @@ -1200,8 +1201,8 @@ static int finish_str(grpc_chttp2_hpack_parser *p) { bits & 0xff); return 0; } - decoded[0] = bits >> 16; - decoded[1] = bits >> 8; + decoded[0] = (gpr_uint8)(bits >> 16); + decoded[1] = (gpr_uint8)(bits >> 8); append_bytes(str, decoded, 2); break; } @@ -1256,7 +1257,8 @@ static int parse_string(grpc_chttp2_hpack_parser *p, const gpr_uint8 *cur, parse_next(p, cur + remaining, end); } else { if (!add_str_bytes(p, cur, cur + given)) return 0; - p->strgot += given; + GPR_ASSERT(given <= GPR_UINT32_MAX - p->strgot); + p->strgot += (gpr_uint32)given; p->state = parse_string; return 1; } |