diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-07-27 22:15:36 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-07-27 22:15:36 -0400 |
commit | 72ed41b8e7502fc5d416d4d9b6317e9ab3faaa47 (patch) | |
tree | bf7bbb790417040aaecccf0b137ba877211b5133 /src/libbasic/include/basic/in-addr-util.h | |
parent | e16e20038bff3a72fb14c3fac8a923dc6a7be327 (diff) | |
parent | 916bb2b5eb5b5f03abaeb3563336d75e36bcb23d (diff) |
Merge branch 'lukeshu/postmove' into lukeshu/master
# Conflicts:
# src/libbasic/Makefile
Diffstat (limited to 'src/libbasic/include/basic/in-addr-util.h')
-rw-r--r-- | src/libbasic/include/basic/in-addr-util.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/libbasic/include/basic/in-addr-util.h b/src/libbasic/include/basic/in-addr-util.h new file mode 100644 index 0000000000..17798ce816 --- /dev/null +++ b/src/libbasic/include/basic/in-addr-util.h @@ -0,0 +1,59 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <netinet/in.h> +#include <stddef.h> +#include <sys/socket.h> + +#include "macro.h" +#include "util.h" + +union in_addr_union { + struct in_addr in; + struct in6_addr in6; +}; + +struct in_addr_data { + int family; + union in_addr_union address; +}; + +int in_addr_is_null(int family, const union in_addr_union *u); +int in_addr_is_link_local(int family, const union in_addr_union *u); +int in_addr_is_localhost(int family, const union in_addr_union *u); +int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b); +int in_addr_prefix_intersect(int family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen); +int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen); +int in_addr_to_string(int family, const union in_addr_union *u, char **ret); +int in_addr_from_string(int family, const char *s, union in_addr_union *ret); +int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *ret); +unsigned char in_addr_netmask_to_prefixlen(const struct in_addr *addr); +struct in_addr* in_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen); +int in_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen); +int in_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask); +int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen); + +static inline size_t FAMILY_ADDRESS_SIZE(int family) { + assert(family == AF_INET || family == AF_INET6); + return family == AF_INET6 ? 16 : 4; +} + +#define IN_ADDR_NULL ((union in_addr_union) {}) |