#include <fcntl.h>
#include <stdio.h>
#include <sys/soundcard.h>
#include <unistd.h>

int main() {
	int mixerfd = open("/dev/mixer", O_RDWR, 0);
	if (mixerfd == -1) {
		printf("OSSEnumerator: Failed to open /dev/mixer\n");
		return 1;
	}

	oss_sysinfo sysinfo;

	if (ioctl(mixerfd, SNDCTL_SYSINFO, &sysinfo) == -1) {
		printf("OSSEnumerator: Failed SNDCTL_SYSINFO\n");
		return 1;
	}

	for (int i=0;i< sysinfo.numaudios;i++) {
		oss_audioinfo ainfo;
		ainfo.dev = i;
		if (ioctl(mixerfd, SNDCTL_AUDIOINFO, &ainfo) == -1) {
			printf("OSSEnumerator: SNDCTL_AUDIOINFO failed for device %d\n", i);
			continue;
		}

        int virtual = 0;
		if (ainfo.caps & PCM_CAP_VIRTUAL)
            virtual = 1;

        printf("dev %s\tvirtual %d\n", ainfo.devnode, virtual);
	}
	close(mixerfd);
}