proxychains-ng/src/daemon/udpclient.c

42 lines
1.0 KiB
C

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "../remotedns.h"
#include "../ip_type.h"
int main() {
int fd;
int port = 1053;
char srvn[] = "127.0.0.1";
struct sockaddr_in srva = {.sin_family = AF_INET, .sin_port = htons(port)};
inet_pton(AF_INET, srvn, &srva.sin_addr);
fd = socket(AF_INET, SOCK_DGRAM, 0);
char namebuf[260];
while(fgets(namebuf, sizeof namebuf, stdin)) {
size_t l = strlen(namebuf);
if(namebuf[l-1] == '\n') {
l--;
namebuf[l] = 0;
}
struct at_msg msg = {0};
unsigned msglen;
if(isdigit(namebuf[0])) {
msglen = 4;
msg.h.msgtype = ATM_GETNAME;
inet_aton(namebuf, (void*) &msg.m.ip);
} else {
msglen = l+1;
msg.h.msgtype = ATM_GETIP;
memcpy(msg.m.host, namebuf, msglen);
}
msg.h.datalen = htons(msglen);
sendto(fd, &msg, sizeof(msg.h)+msglen, 0, (void*)&srva, sizeof(srva));
char rcvbuf[512];
recvfrom(fd, rcvbuf, sizeof rcvbuf, 0, (void*)0, (void*)0);
}
}