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ether-addr-util: introduce ether_addr_to_string_alloc()

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This commit is contained in:
Yu Watanabe 2021-04-29 15:35:47 +09:00
parent 4e947bd049
commit ae8e3c2b25
2 changed files with 17 additions and 0 deletions
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16
src/basic/ether-addr-util.c
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@ -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);
}

1
src/basic/ether-addr-util.h
View File

@ -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) {