IP applet by Bastian Blank <waldi@debian.org>

1 files changed, 92 insertions, 0 deletions

diff --git a/networking/libiproute/ll_addr.c b/networking/libiproute/ll_addr.c
new file mode 100644
index 000000000..51ff13b8c
--- /dev/null
+++ b/networking/libiproute/ll_addr.c
@@ -0,0 +1,92 @@
+/*
+ * ll_addr.c
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ *
+ * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/sockios.h>
+
+#include "utils.h"
+
+
+const char *ll_addr_n2a(unsigned char *addr, int alen, int type, char *buf, int blen)
+{
+        int i;
+        int l;
+
+        if (alen == 4 &&
+            (type == ARPHRD_TUNNEL || type == ARPHRD_SIT || type == ARPHRD_IPGRE)) {
+                return inet_ntop(AF_INET, addr, buf, blen);
+        }
+        l = 0;
+        for (i=0; i<alen; i++) {
+                if (i==0) {
+                        snprintf(buf+l, blen, "%02x", addr[i]);
+                        blen -= 2;
+                        l += 2;
+                } else {
+                        snprintf(buf+l, blen, ":%02x", addr[i]);
+                        blen -= 3;
+                        l += 3;
+                }
+        }
+        return buf;
+}
+
+int ll_addr_a2n(unsigned char *lladdr, int len, char *arg)
+{
+        if (strchr(arg, '.')) {
+                inet_prefix pfx;
+                if (get_addr_1(&pfx, arg, AF_INET)) {
+                        fprintf(stderr, "\"%s\" is invalid lladdr.\n", arg);
+                        return -1;
+                }
+                if (len < 4)
+                        return -1;
+                memcpy(lladdr, pfx.data, 4);
+                return 4;
+        } else {
+                int i;
+
+                for (i=0; i<len; i++) {
+                        int temp;
+                        char *cp = strchr(arg, ':');
+                        if (cp) {
+                                *cp = 0;
+                                cp++;
+                        }
+                        if (sscanf(arg, "%x", &temp) != 1) {
+                                fprintf(stderr, "\"%s\" is invalid lladdr.\n", arg);
+                                return -1;
+                        }
+                        if (temp < 0 || temp > 255) {
+                                fprintf(stderr, "\"%s\" is invalid lladdr.\n", arg);
+                                return -1;
+                        }
+                        lladdr[i] = temp;
+                        if (!cp)
+                                break;
+                        arg = cp;
+                }
+                return i+1;
+        }
+}