websocket-driver-ruby/ext/websocket_driver/frame.c

#include "frame.h"

wsd_Frame *wsd_Frame_create()
{
    wsd_Frame *frame = calloc(1, sizeof(wsd_Frame));
    if (frame == NULL) return NULL;

    frame->payload = NULL;

    return frame;
}

void wsd_Frame_destroy(wsd_Frame *frame)
{
    if (frame == NULL) return;

    wsd_clear_pointer(free, frame->payload);

    free(frame);
}

void wsd_Frame_mask(wsd_Frame *frame)
{
    uint64_t i = 0;

    if (!frame->masked) return;

    for (i = 0; i < frame->length; i++) {
        frame->payload[i] ^= frame->masking_key[i % 4];
    }
}

uint64_t wsd_Frame_copy(wsd_Frame *frame, uint8_t *target, uint64_t offset)
{
    uint64_t n = frame->length;

    memcpy(target + offset, frame->payload, n);
    return offset + n;
}