+#define _GNU_SOURCE
#include <unistd.h>
#include <sys/utsname.h>
#include <string.h>
+#include <errno.h>
int getdomainname(char *name, size_t len)
{
- *name = 0;
+ struct utsname temp;
+ uname(&temp);
+ if (!len || strlen(temp.domainname) >= len) {
+ errno = EINVAL;
+ return -1;
+ }
+ strcpy(name, temp.domainname);
return 0;
}