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author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-04-29 15:35:47 +0900 |
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committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-04-30 05:39:10 +0900 |
commit | ae8e3c2b257c38c5301d20bec39a1ffec2aba6c6 (patch) | |
tree | cbac368e940c18fff309fb0f1a804d28c08dc8c4 | |
parent | 4e947bd04944e58df4103eee4cb8180b5008f143 (diff) | |
download | systemd-ae8e3c2b257c38c5301d20bec39a1ffec2aba6c6.tar.gz |
ether-addr-util: introduce ether_addr_to_string_alloc()
-rw-r--r-- | src/basic/ether-addr-util.c | 16 | ||||
-rw-r--r-- | src/basic/ether-addr-util.h | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/basic/ether-addr-util.c b/src/basic/ether-addr-util.c index c8094b6e45..4bb6557384 100644 --- a/src/basic/ether-addr-util.c +++ b/src/basic/ether-addr-util.c @@ -43,6 +43,22 @@ char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR return buffer; } +int ether_addr_to_string_alloc(const struct ether_addr *addr, char **ret) { + char *buf; + + assert(addr); + assert(ret); + + buf = new(char, ETHER_ADDR_TO_STRING_MAX); + if (!buf) + return -ENOMEM; + + ether_addr_to_string(addr, buf); + + *ret = buf; + return 0; +} + int ether_addr_compare(const struct ether_addr *a, const struct ether_addr *b) { return memcmp(a, b, ETH_ALEN); } diff --git a/src/basic/ether-addr-util.h b/src/basic/ether-addr-util.h index 942ce55621..712c927796 100644 --- a/src/basic/ether-addr-util.h +++ b/src/basic/ether-addr-util.h @@ -35,6 +35,7 @@ char* hw_addr_to_string(const hw_addr_data *addr, char buffer[HW_ADDR_TO_STRING_ #define ETHER_ADDR_TO_STRING_MAX (3*6) char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]); +int ether_addr_to_string_alloc(const struct ether_addr *addr, char **ret); int ether_addr_compare(const struct ether_addr *a, const struct ether_addr *b); static inline bool ether_addr_equal(const struct ether_addr *a, const struct ether_addr *b) { |