void main(void)
{
unsigned char freshout[20], seedbyte = 1;
unsigned int bytesneeded;
R_RANDOM_STRUCT randomstruct;
fprintf(stderr, "RANDEMO - Random Object Demo Using %s.\n", RSAEURO_IDENT);
R_RandomCreate(&randomstruct);
R_GenerateBytes(freshout, sizeof(freshout), &randomstruct);
printf("\n Random Output 1 - ");
printbuff(freshout, sizeof(freshout));
R_RandomMix(&randomstruct);
R_GenerateBytes(freshout, sizeof(freshout), &randomstruct);
printf(" Mixed Random Output 1 - ");
printbuff(freshout, sizeof(freshout));
R_RandomFinal(&randomstruct);
R_RandomInit(&randomstruct);
while(1) {
R_GetRandomBytesNeeded(&bytesneeded, &randomstruct);
if(bytesneeded == 0)
break;
R_RandomUpdate(&randomstruct, &seedbyte, 1);
}
R_GenerateBytes(freshout, sizeof(freshout), &randomstruct);
printf(" Random Output 2 - ");
printbuff(freshout, sizeof(freshout));
R_RandomMix(&randomstruct);
R_GenerateBytes(freshout, sizeof(freshout), &randomstruct);
printf(" Mixed Random Output 2 - ");
printbuff(freshout, sizeof(freshout));
R_GenerateBytes(freshout, sizeof(freshout), &randomstruct);
printf(" Mixed Random Output 2 - ");
printbuff(freshout, sizeof(freshout));
R_RandomFinal(&randomstruct);
}
int main(void)
{
int sock, ret, run = 0;
char buff_sender[BUFFSIZE];
char buff_receiver[2 * BUFFSIZE];
char name[FBNAMSIZ];
int iterations = 41;
int i = 0;
sock = socket(27, SOCK_RAW, 0);
if (sock < 0)
panic("Cannot create socket!\n");
ret = ioctl(sock, 35296, name);
if (ret < 0)
panic("Cannot do ioctl!\n");
fprintf(stderr, "our instance: %s\n", name);
printf("our instance: %s\n", name);
preparebuff(buff_sender, run++);
for (i = 0; i < iterations; i++) {
printbuff(buff_sender, sizeof(buff_sender));
retry_send:
ret = sendto(sock, buff_sender, sizeof(buff_sender), 0, NULL, 0);
if (ret == -1){
perror("sendto");
fprintf(stderr, "iteration: %d\n", i);
sleep(25);
goto retry_send;
}
fprintf(stderr, "[echo:]##############waiting######################\n");
retry_rcv:
ret = recvfrom(sock, buff_receiver, sizeof(buff_receiver), 0, NULL, 0);
if (ret == -1){
perror("recvfrom");
sleep(5);
goto retry_rcv;
}
fprintf(stderr, "[echo:]##############received new message with len %d######################\n", ret);
printbuff(buff_receiver, ret);
}
close(sock);
return 0;
}