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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-11-14 15:24:20 +0900 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-11-25 22:34:29 +0900 |
| commit | f9930401d53a2f5c581fab5d58906772f3fc1fa8 (patch) | |
| tree | 03a0896638d64a83b6aba3624048445d8701d55a /src/basic/in-addr-util.h | |
| parent | 9df247da2849e3154fc343d7ecd439ef4b8f0fa8 (diff) | |
| download | systemd-f9930401d53a2f5c581fab5d58906772f3fc1fa8.tar.gz | |
in-addr-util: introduce FAMILY_ADDRESS_SIZE_SAFE() macro
Diffstat (limited to 'src/basic/in-addr-util.h')
| -rw-r--r-- | src/basic/in-addr-util.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/basic/in-addr-util.h b/src/basic/in-addr-util.h index 97715a230c..0178391e5f 100644 --- a/src/basic/in-addr-util.h +++ b/src/basic/in-addr-util.h @@ -114,6 +114,13 @@ static inline size_t FAMILY_ADDRESS_SIZE(int family) { return family == AF_INET6 ? 16 : 4; } +#define FAMILY_ADDRESS_SIZE_SAFE(f) \ + ({ \ + int _f = (f); \ + _f == AF_INET ? sizeof(struct in_addr) : \ + _f == AF_INET6 ? sizeof(struct in6_addr) : 0; \ + }) + /* Workaround for clang, explicitly specify the maximum-size element here. * See also oss-fuzz#11344. */ #define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} }) |