ifcfg

main.c

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <switch.h>

#include <sys/socket.h>
#include <netinet/in.h>
#include <net/if.h>
#include <arpa/inet.h>

#include <sys/ioctl.h>
//Result rr; 

void test(void) {

    struct ifconf ifcfg;
    struct ifreq ifs[5];

    int fd = socket(AF_INET, SOCK_STREAM, 0); // bsd:u restricts our choices...
    if(fd == -1) { perror("socket "); printf("%x\n", socketGetLastBsdResult()); goto ret; }

    ifcfg.ifc_len = (int)sizeof(ifs);
    ifcfg.ifc_req = ifs;

    if(ioctl(fd, SIOCGIFCONF, &ifcfg) == -1) { perror("ifconf "); printf("%x\n", socketGetLastBsdResult()); goto ret; }
    for(int i = 0; i < ifcfg.ifc_len / (int)sizeof(ifs); i++) {
        printf("%s\t", ifs[i].ifr_name);
        if(ioctl(fd, SIOCGIFADDR, &ifs[i].ifr_addr) == -1) { perror("ifreq "); printf("%x\n", socketGetLastBsdResult()); goto ret; }
        if(ifs[i].ifr_addr.sa_family == AF_INET) {
            in_addr_t cur = ((struct sockaddr_in *)&ifs[i].ifr_addr)->sin_addr.s_addr;
			printf("%s\n", inet_ntoa(((struct sockaddr_in *)&ifs[i].ifr_addr)->sin_addr));
        }
    }

ret:
    close(fd);
}

int main(int argc, char **argv)
{
	gfxInitDefault();

	//Initialize console. Using NULL as the second argument tells the console library to use the internal console structure as current one.
	consoleInit(NULL);

	//Move the cursor to row 16 and column 20 and then prints "Hello World!"
	//To move the cursor you have to print "\x1b[r;cH", where r and c are respectively
	//the row and column where you want your cursor to move

    socketInitializeDefault();
    test();
    socketExit();

    while(true)
	{
		//Scan all the inputs. This should be done once for each frame
		hidScanInput();

		if (hidKeysDown(CONTROLLER_P1_AUTO) & KEY_PLUS) break;

		gfxFlushBuffers();
		gfxSwapBuffers();
		gfxWaitForVsync();
	}

	gfxExit();
	return 0;
}