sd-*.h: clean up exported (or to-be-exported) header files

Exported header files should not include internal headers. Fix that.

Exported header files should not use the bool type. So far we opted to
stick to C89 for exported headers, and hence use "int" for bools in
them. Continue to do so.

Exported header files should have #include lines for everything they use
including inttypes.h and sys/types.h, so that they may be included in
any order.

Exported header files should have C++ guards, hence add them.

Exported header files should not use gcc extensions like #pragma once,
get rid of it.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index cb8b0713f4..d4d4b771d9 100644
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -206,9 +206,8 @@ int sd_dhcp6_client_set_duid(
         return 0;
 }
 
-int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, bool enabled) {
+int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, int enabled) {
         assert_return(client, -EINVAL);
-
         assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY);
 
         client->information_request = enabled;
@@ -216,7 +215,7 @@ int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, bool enable
         return 0;
 }
 
-int sd_dhcp6_client_get_information_request(sd_dhcp6_client *client, bool *enabled) {
+int sd_dhcp6_client_get_information_request(sd_dhcp6_client *client, int *enabled) {
         assert_return(client, -EINVAL);
         assert_return(enabled, -EINVAL);