X-Git-Url: https://git.archive.openwrt.org/?a=blobdiff_plain;ds=sidebyside;f=utils.c;h=14e966a49f8052dbe6a2727987aa54ff238fe80b;hb=ed984c7aea436999c38cc40c5ebaf98bd8294df4;hp=65109d7b262ef82837dbfb2912922c4f036a3956;hpb=478d49f227dfed9c1b2178107bcb06221956e8f8;p=project%2Fnetifd.git

diff --git a/utils.c b/utils.c
index 65109d7..14e966a 100644
--- a/utils.c
+++ b/utils.c
@@ -15,6 +15,9 @@
 #include <stdlib.h>
 #include "utils.h"
 
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
 void
 __vlist_simple_init(struct vlist_simple_tree *tree, int offset)
 {
@@ -66,3 +69,74 @@ vlist_simple_flush_all(struct vlist_simple_tree *tree)
 	tree->version = -1;
 	vlist_simple_flush(tree);
 }
+
+unsigned int
+parse_netmask_string(const char *str, bool v6)
+{
+	struct in_addr addr;
+	unsigned int ret;
+	char *err = NULL;
+
+	if (!strchr(str, '.')) {
+		ret = strtoul(str, &err, 0);
+		if (err && *err)
+			goto error;
+
+		return ret;
+	}
+
+	if (v6)
+		goto error;
+
+	if (inet_aton(str, &addr) != 1)
+		goto error;
+
+	return 32 - fls(~(ntohl(addr.s_addr)));
+
+error:
+	return ~0;
+}
+
+bool
+split_netmask(char *str, unsigned int *netmask, bool v6)
+{
+	char *delim = strchr(str, '/');
+
+	if (delim) {
+		*(delim++) = 0;
+
+		*netmask = parse_netmask_string(delim, v6);
+	}
+	return true;
+}
+
+int
+parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
+{
+	char *astr = alloca(strlen(str) + 1);
+
+	strcpy(astr, str);
+	if (!split_netmask(astr, netmask, af == AF_INET6))
+		return 0;
+
+	if (af == AF_INET6) {
+		if (*netmask > 128)
+			return 0;
+	} else {
+		if (*netmask > 32)
+			return 0;
+	}
+
+	return inet_pton(af, astr, addr);
+}
+
+char *
+format_macaddr(uint8_t *mac)
+{
+	static char str[sizeof("ff:ff:ff:ff:ff:ff ")];
+
+	snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x",
+		 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+	return str;
+}