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test.c
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test.c
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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <linux/socket.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include "include/linux/lora.h"
#ifndef AF_LORA
#define AF_LORA 28
#endif
#ifndef PF_LORA
#define PF_LORA AF_LORA
#endif
int main(void)
{
int skt = socket(PF_LORA, SOCK_DGRAM, 1);
if (skt == -1) {
int err = errno;
fprintf(stderr, "socket failed: %s\n", strerror(err));
return 1;
}
printf("socket %d\n", skt);
struct ifreq ifr;
strcpy(ifr.ifr_name, "lora0");
int ret = ioctl(skt, SIOCGIFINDEX, &ifr);
if (ret == -1) {
int err = errno;
fprintf(stderr, "ioctl failed: %s\n", strerror(err));
return 1;
}
printf("ifindex %d\n", ifr.ifr_ifindex);
struct sockaddr_lora addr;
addr.lora_family = AF_LORA;
addr.lora_ifindex = ifr.ifr_ifindex;
ret = bind(skt, (struct sockaddr *)&addr, sizeof(addr));
if (ret == -1) {
int err = errno;
fprintf(stderr, "bind failed: %s\n", strerror(err));
return 1;
}
char buf[2];
buf[0] = 0x42;
buf[1] = 0x43;
int bytes_sent = write(skt, buf, 2);
if (bytes_sent == -1) {
int err = errno;
fprintf(stderr, "write failed: %s\n", strerror(err));
return 1;
}
printf("bytes_sent %d\n", bytes_sent);
return 0;
}