From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 29 Apr 2021 06:35:47 +0000 (+0900)
Subject: ether-addr-util: introduce ether_addr_to_string_alloc()
X-Git-Tag: v249-rc1~321^2~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ae8e3c2b257c38c5301d20bec39a1ffec2aba6c6;p=thirdparty%2Fsystemd.git

ether-addr-util: introduce ether_addr_to_string_alloc()
---

diff --git a/src/basic/ether-addr-util.c b/src/basic/ether-addr-util.c
index c8094b6e45e..4bb65573845 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 942ce55621e..712c9277964 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) {