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sd-netlink: introduce sd_netlink_message_append_strv()

This commit is contained in:
Yu Watanabe 2019-12-15 21:47:21 +09:00
parent 8f3c185966
commit 6d725977c4
2 changed files with 30 additions and 0 deletions
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29
src/libsystemd/sd-netlink/netlink-message.c
View File

@ -250,6 +250,35 @@ int sd_netlink_message_append_string(sd_netlink_message *m, unsigned short type,
return 0;
}
int sd_netlink_message_append_strv(sd_netlink_message *m, unsigned short type, char * const *data) {
size_t length, size;
char * const *p;
int r;
assert_return(m, -EINVAL);
assert_return(!m->sealed, -EPERM);
assert_return(data, -EINVAL);
r = message_attribute_has_type(m, &size, type, NETLINK_TYPE_STRING);
if (r < 0)
return r;
STRV_FOREACH(p, data) {
if (size) {
length = strnlen(*p, size+1);
if (length > size)
return -EINVAL;
} else
length = strlen(*p);
r = add_rtattr(m, type, *p, length + 1);
if (r < 0)
return r;
}
return 0;
}
int sd_netlink_message_append_flag(sd_netlink_message *m, unsigned short type) {
size_t size;
int r;

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

@ -80,6 +80,7 @@ int sd_netlink_attach_event(sd_netlink *nl, sd_event *e, int64_t priority);
int sd_netlink_detach_event(sd_netlink *nl);
int sd_netlink_message_append_string(sd_netlink_message *m, unsigned short type, const char *data);
int sd_netlink_message_append_strv(sd_netlink_message *m, unsigned short type, char * const *data);
int sd_netlink_message_append_flag(sd_netlink_message *m, unsigned short type);
int sd_netlink_message_append_u8(sd_netlink_message *m, unsigned short type, uint8_t data);
int sd_netlink_message_append_u16(sd_netlink_message *m, unsigned short type, uint16_t data);