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#include "packet.h"
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
int
main(void)
{
setvbuf(stdout, NULL, _IONBF, 0);
union packet packet;
for (size_t psz; (psz = fread(packet.buf, 1, sizeof(packet.hdr), stdin)) > 0;) {
if (!packet_verify(&packet))
errx(EXIT_FAILURE, "invalid packet");
psz += fread(packet.buf + sizeof(packet.hdr), 1, packet.hdr.size - sizeof(packet.hdr), stdin);
if (psz != packet.hdr.size)
errx(EXIT_FAILURE, "packet size doesn't match, got %zu, expected %u", psz, packet.hdr.size);
packet_crypt(&packet);
fwrite(packet.buf, 1, packet.hdr.size, stdout);
}
return EXIT_SUCCESS;
}
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