tree-wide: drop 'This file is part of systemd' blurb

[elogind.git] / src / basic / socket-util.h

diff --git a/src/basic/socket-util.h b/src/basic/socket-util.h
index a85045d11cf4bb862106910317d82d7efd28573a..28c488409dbf6ef448ecaafeb536be3e70d28d26 100644 (file)
--- a/src/basic/socket-util.h
+++ b/src/basic/socket-util.h
@@ -1,22 +1,8 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
-  This file is part of systemd.
-
   Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
 #include <netinet/ether.h>
@@ -35,20 +21,28 @@
 #include "util.h"
 
 union sockaddr_union {
+        /* The minimal, abstract version */
         struct sockaddr sa;
-#if 0 /// UNNEEDED by elogind, only 'sa' and 'un' are used in all of elogind.
+
+        /* The libc provided version that allocates "enough room" for every protocol */
+        struct sockaddr_storage storage;
+
+        /* Protoctol-specific implementations */
         struct sockaddr_in in;
         struct sockaddr_in6 in6;
-#endif // 0
         struct sockaddr_un un;
-#if 0 /// UNNEEDED by elogind, only 'sa' and 'un' are used in all of elogind.
+#if 0 /// UNNEEDED by elogind.
         struct sockaddr_nl nl;
-        struct sockaddr_storage storage;
         struct sockaddr_ll ll;
-        struct sockaddr_vm vm;
 #endif // 0
+        struct sockaddr_vm vm;
+
         /* Ensure there is enough space to store Infiniband addresses */
         uint8_t ll_buffer[offsetof(struct sockaddr_ll, sll_addr) + CONST_MAX(ETH_ALEN, INFINIBAND_ALEN)];
+
+        /* Ensure there is enough space after the AF_UNIX sun_path for one more NUL byte, just to be sure that the path
+         * component is always followed by at least one NUL byte. */
+        uint8_t un_buffer[sizeof(struct sockaddr_un) + 1];
 };
 
 #if 0 /// UNNEEDED by elogind
@@ -76,6 +70,9 @@ typedef enum SocketAddressBindIPv6Only {
 
 #define socket_address_family(a) ((a)->sockaddr.sa.sa_family)
 
+const char* socket_address_type_to_string(int t) _const_;
+int socket_address_type_from_string(const char *s) _pure_;
+
 int socket_address_parse(SocketAddress *a, const char *s);
 int socket_address_parse_and_warn(SocketAddress *a, const char *s);
 int socket_address_parse_netlink(SocketAddress *a, const char *s);
@@ -109,18 +106,20 @@ bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) _pure_
 const char* socket_address_get_path(const SocketAddress *a);
 
 bool socket_ipv6_is_supported(void);
+#endif // 0
 
 int sockaddr_port(const struct sockaddr *_sa, unsigned *port);
 
+#if 0 /// UNNEEDED by elogind
 int sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_ipv6, bool include_port, char **ret);
 int getpeername_pretty(int fd, bool include_port, char **ret);
 int getsockname_pretty(int fd, char **ret);
 
 int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret);
-int getnameinfo_pretty(int fd, char **ret);
 
 const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_;
 SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_;
+SocketAddressBindIPv6Only socket_address_bind_ipv6_only_or_bool_from_string(const char *s);
 
 int netlink_family_to_string_alloc(int b, char **s);
 int netlink_family_from_string(const char *s) _pure_;
@@ -141,6 +140,7 @@ bool address_label_valid(const char *p);
 
 int getpeercred(int fd, struct ucred *ucred);
 int getpeersec(int fd, char **ret);
+int getpeergroups(int fd, gid_t **ret);
 
 int send_one_fd_sa(int transport_fd,
                    int fd,