1 files changed, 24 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/getdnnm.c b/libc/sysdeps/linux/common/getdnnm.c
new file mode 100644
index 000000000..fdcbb0f3a
--- /dev/null
+++ b/libc/sysdeps/linux/common/getdnnm.c
@@ -0,0 +1,24 @@
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+#include <errno.h>
+
+int
+getdomainname(char *name, size_t len)
+{
+  struct utsname uts;
+
+  if (name == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  if (uname(&uts) == -1) return -1;
+
+  if (strlen(uts.domainname)+1 > len) {
+    errno = EINVAL;
+    return -1;
+  }
+  strcpy(name, uts.domainname);
+  return 0;
+}