diff options
| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-09-28 22:04:52 +0900 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-09-29 03:37:09 +0900 |
| commit | 5977b71f28075c34eb9e45aaa2d7cdc791f7eaf8 (patch) | |
| tree | 44f0e8caf628eae20a9be91e63b7f6b47d871551 /src/libsystemd-network/sd-dhcp-client.c | |
| parent | 01afd0f7f53f7807294ce7c008ecf8a043a920fe (diff) | |
| download | systemd-5977b71f28075c34eb9e45aaa2d7cdc791f7eaf8.tar.gz | |
libsystemd-network: make sd_dhcp_client_get_ifname() or friends return negative errno on error
Diffstat (limited to 'src/libsystemd-network/sd-dhcp-client.c')
| -rw-r--r-- | src/libsystemd-network/sd-dhcp-client.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c index 72dbd95145..45c2351c53 100644 --- a/src/libsystemd-network/sd-dhcp-client.c +++ b/src/libsystemd-network/sd-dhcp-client.c @@ -297,11 +297,19 @@ int sd_dhcp_client_set_ifname(sd_dhcp_client *client, const char *ifname) { return free_and_strdup(&client->ifname, ifname); } -const char *sd_dhcp_client_get_ifname(sd_dhcp_client *client) { - if (!client) - return NULL; +int sd_dhcp_client_get_ifname(sd_dhcp_client *client, const char **ret) { + int r; - return get_ifname(client->ifindex, &client->ifname); + assert_return(client, -EINVAL); + + r = get_ifname(client->ifindex, &client->ifname); + if (r < 0) + return r; + + if (ret) + *ret = client->ifname; + + return 0; } int sd_dhcp_client_set_mac( |