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-rw-r--r--src/libsystemd-network/network-internal.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c
index f3dc42f6dd..261603f841 100644
--- a/src/libsystemd-network/network-internal.c
+++ b/src/libsystemd-network/network-internal.c
@@ -361,3 +361,98 @@ int load_module(struct kmod_ctx *ctx, const char *mod_name) {
return r;
}
+
+void serialize_in_addrs(FILE *f, const char *key, struct in_addr *addresses, size_t size) {
+ unsigned i;
+
+ assert(f);
+ assert(key);
+ assert(addresses);
+ assert(size);
+
+ fprintf(f, "%s=", key);
+
+ for (i = 0; i < size; i++)
+ fprintf(f, "%s%s", inet_ntoa(addresses[i]),
+ (i < (size - 1)) ? " ": "");
+
+ fputs("\n", f);
+}
+
+int deserialize_in_addrs(struct in_addr **ret, size_t *ret_size, const char *string) {
+ _cleanup_free_ struct in_addr *addresses = NULL;
+ size_t size = 0;
+ char *word, *state;
+ size_t len;
+
+ assert(ret);
+ assert(ret_size);
+ assert(string);
+
+ FOREACH_WORD(word, len, string, state) {
+ _cleanup_free_ char *addr_str = NULL;
+ struct in_addr *new_addresses;
+ int r;
+
+ new_addresses = realloc(addresses, (size + 1) * sizeof(struct in_addr));
+ if (!new_addresses)
+ return -ENOMEM;
+ else
+ addresses = new_addresses;
+
+ addr_str = strndup(word, len);
+ if (!addr_str)
+ return -ENOMEM;
+
+ r = inet_pton(AF_INET, addr_str, &(addresses[size]));
+ if (r <= 0)
+ continue;
+
+ size ++;
+ }
+
+ *ret_size = size;
+ *ret = addresses;
+ addresses = NULL;
+
+ return 0;
+}
+
+int deserialize_in6_addrs(struct in6_addr **ret, size_t *ret_size, const char *string) {
+ _cleanup_free_ struct in6_addr *addresses = NULL;
+ size_t size = 0;
+ char *word, *state;
+ size_t len;
+
+ assert(ret);
+ assert(ret_size);
+ assert(string);
+
+ FOREACH_WORD(word, len, string, state) {
+ _cleanup_free_ char *addr_str = NULL;
+ struct in6_addr *new_addresses;
+ int r;
+
+ new_addresses = realloc(addresses, (size + 1) * sizeof(struct in6_addr));
+ if (!new_addresses)
+ return -ENOMEM;
+ else
+ addresses = new_addresses;
+
+ addr_str = strndup(word, len);
+ if (!addr_str)
+ return -ENOMEM;
+
+ r = inet_pton(AF_INET6, addr_str, &(addresses[size]));
+ if (r <= 0)
+ continue;
+
+ size++;
+ }
+
+ *ret_size = size;
+ *ret = addresses;
+ addresses = NULL;
+
+ return 0;
+}