Epson C32C824151 Technical Reference - Page 69

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4.7.8.2 For Linux /* UDP3289 programming sample for LINUX * HOW TO BUILD * cc ludp.c */ #include #include #define MAXBUF 512 char buf[MAXBUF]; int main(int argc, char* argv[]) { int sock; struct sockaddr_in addr; int i, len; socklen_t fromlen; if (argc != 2) { printf("usage: udp3289 IP_ADDRESS\n"); exit(1); } /* create sockets */ sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { perror("socket()"); 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 Length UB-E02 Technical Reference Guide Rev. A 4-13 Programming Samples

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Rev. A
4-13
Programming Samples
UB-E02 Technical Reference Guide
4.7.8.2 For Linux
/* UDP3289 programming sample for LINUX
* HOW TO BUILD
*
cc ludp.c
*/
#include <stdio.h>
#include <netdb.h>
#define MAXBUF 512
char buf[MAXBUF];
int main(int argc, char* argv[])
{
int sock;
struct sockaddr_in addr;
int i, len;
socklen_t fromlen;
if (argc != 2) {
printf("usage: udp3289 IP_ADDRESS\n");
exit(1);
}
/* create sockets */
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) {
perror("socket()");
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 Length