diff options
Diffstat (limited to 'src/misc/getdomainname.c')
-rw-r--r-- | src/misc/getdomainname.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/misc/getdomainname.c b/src/misc/getdomainname.c index 7eb113d7..59df566d 100644 --- a/src/misc/getdomainname.c +++ b/src/misc/getdomainname.c @@ -1,9 +1,17 @@ +#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; } |