1 files changed, 27 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/lib/if_nametoindex.c b/mdk-stage1/dietlibc/lib/if_nametoindex.c
new file mode 100644
index 000000000..5923963b1
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/if_nametoindex.c
@@ -0,0 +1,27 @@
+#include <linux/if.h>
+#include <linux/net.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <sys/socket.h>
+
+#ifndef SOCK_DGRAM
+#define SOCK_DGRAM 2
+#endif
+
+int if_nametoindex(char* blub) {
+  struct ifreq ifr;
+  int fd;
+  char *tmp;
+  int len=sizeof(ifr.ifr_name);
+  fd=socket(AF_INET6,SOCK_DGRAM,0);
+  if (fd<0) fd=socket(AF_INET,SOCK_DGRAM,0);
+  for (tmp=ifr.ifr_name; len>0; --len) {
+    if ((*tmp++=*blub++)==0) break;
+  }
+  if (ioctl(fd,SIOCGIFINDEX,&ifr)==0) {
+    close(fd);
+    return ifr.ifr_ifindex;
+  }
+  close(fd);
+  return 0;
+}