68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
#include <stdio.h>
|
|
#include <winsock.h>
|
|
|
|
#define MAXBUF 512
|
|
char buf[MAXBUF];
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
WSADATA data;
|
|
SOCKET sock;
|
|
struct sockaddr_in addr;
|
|
int i, len, fromlen;
|
|
|
|
if (argc != 2) {
|
|
printf("usage: wudp <IP address>\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* initialize windows socket */
|
|
WSAStartup(0x0101, &data);
|
|
|
|
/* Create socket */
|
|
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == INVALID_SOCKET) {
|
|
fprintf(stderr, "Error socket(): %d\n", WSAGetLastError());
|
|
exit(1);
|
|
}
|
|
|
|
/* initialize the parameter */
|
|
memset(&addr, 0, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(3289);
|
|
addr.sin_addr.s_addr = inet_addr(argv[1]);
|
|
|
|
/* make a packet (PRINTER STATUS) */
|
|
buf[0] = 'E';
|
|
buf[1] = 'P';
|
|
buf[2] = 'S';
|
|
buf[3] = 'O';
|
|
buf[4] = 'N';
|
|
buf[5] = 'Q'; // PacketType(Q)
|
|
buf[6] = 0x03; // DeviceType(3)
|
|
buf[7] = 0x00; // DeviceNumber(0)
|
|
buf[8] = 0x00; // Function(0010h)
|
|
buf[9] = 0x10;
|
|
|
|
buf[10] = 0x00; // Result
|
|
buf[11] = 0x00;
|
|
buf[12] = 0x00; // Parameter length
|
|
buf[13] = 0x00;
|
|
|
|
/* send a packet */
|
|
i = sendto(sock, buf, 14, 0, (struct sockaddr*)&addr, sizeof(addr));
|
|
|
|
/* receive packet */
|
|
fromlen = sizeof(addr);
|
|
len = recvfrom(sock, buf, MAXBUF, 0, (struct sockaddr*)&addr, &fromlen);
|
|
|
|
/* print receive packet */
|
|
if (len) {
|
|
if ((buf[10] == 0x00) && (buf[11] == 0x00))
|
|
for (i = 0; i < len; i++)
|
|
printf("%3d:%02Xh\n", i, buf[i] & 0xff);
|
|
}
|
|
|
|
/* close socket */
|
|
closesocket(sock);
|
|
return 0;
|
|
} |