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Diffstat (limited to 'src/misc/getdomainname.c')
-rw-r--r--src/misc/getdomainname.c10
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;
 }