diff options
| -rw-r--r-- | src/websock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/websock.c b/src/websock.c index f79feb5e..1b127c8b 100644 --- a/src/websock.c +++ b/src/websock.c @@ -45,7 +45,7 @@ #define FRAME_SET_RSV3(BYTE) (((BYTE) & 0x01) << 4) #define FRAME_SET_OPCODE(BYTE) ((BYTE) & 0x0F) #define FRAME_SET_MASK(BYTE) (((BYTE) & 0x01) << 7) -#define FRAME_SET_LENGTH(X64, IDX) (unsigned char)(((X64) >> ((IDX)*8)) & 0xFF) +#define FRAME_SET_LENGTH(X64, IDX) (unsigned char)((sizeof(X64)) <= (IDX) ? 0 : (((X64) >> ((IDX)*8)) & 0xFF)) #define OPCODE_CONTINUATION 0x0 #define OPCODE_TEXT 0x1 |