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sd-netlink: introduce sd_netlink_message_read_data()

This commit is contained in:
Yu Watanabe 2020-10-07 14:24:08 +09:00
parent 2fe1d557e5
commit de52a83cb7
2 changed files with 25 additions and 0 deletions
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24
src/libsystemd/sd-netlink/netlink-message.c
View File

@ -694,6 +694,30 @@ int sd_netlink_message_read(sd_netlink_message *m, unsigned short type, size_t s
return r;
}
int sd_netlink_message_read_data(sd_netlink_message *m, unsigned short type, size_t *ret_size, void **ret_data) {
void *attr_data, *data;
int r;
assert_return(m, -EINVAL);
r = netlink_message_read_internal(m, type, &attr_data, NULL);
if (r < 0)
return r;
if (ret_data) {
data = memdup(attr_data, r);
if (!data)
return -ENOMEM;
*ret_data = data;
}
if (ret_size)
*ret_size = r;
return r;
}
int sd_netlink_message_read_string_strdup(sd_netlink_message *m, unsigned short type, char **data) {
void *attr_data;
char *str;

1
src/systemd/sd-netlink.h
View File

@ -103,6 +103,7 @@ int sd_netlink_message_open_container_union(sd_netlink_message *m, unsigned shor
int sd_netlink_message_close_container(sd_netlink_message *m);
int sd_netlink_message_read(sd_netlink_message *m, unsigned short type, size_t size, void *data);
int sd_netlink_message_read_data(sd_netlink_message *m, unsigned short type, size_t *ret_size, void **ret_data);
int sd_netlink_message_read_string_strdup(sd_netlink_message *m, unsigned short type, char **data);
int sd_netlink_message_read_string(sd_netlink_message *m, unsigned short type, const char **data);
int sd_netlink_message_read_strv(sd_netlink_message *m, unsigned short container_type, unsigned short type_id, char ***ret);