usr/klibc/getdomainname.c

/*
 * getdomainname.c
 */

#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <sys/utsname.h>

int getdomainname(char *name, size_t len)
{
	struct utsname un;

	if (uname(&un))
		return -1;

	if (len < strlen(un.domainname) + 1) {
		errno = EINVAL;
		return -1;
	}

	strcpy(name, un.domainname);

	return 0;
}