-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
#pragma once
/***
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <sys/socket.h>
-#include <netinet/in.h>
#include <netinet/ether.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <sys/socket.h>
+#include <sys/types.h>
#include <sys/un.h>
#include <linux/netlink.h>
#include <linux/if_packet.h>
struct sockaddr_ll ll;
};
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
typedef struct SocketAddress {
union sockaddr_union sockaddr;
} SocketAddressBindIPv6Only;
#define socket_address_family(a) ((a)->sockaddr.sa.sa_family)
-#endif // 0
-// UNNEEDED int socket_address_parse(SocketAddress *a, const char *s);
-// UNNEEDED int socket_address_parse_and_warn(SocketAddress *a, const char *s);
-// UNNEEDED int socket_address_parse_netlink(SocketAddress *a, const char *s);
-// UNNEEDED int socket_address_print(const SocketAddress *a, char **p);
-// UNNEEDED int socket_address_verify(const SocketAddress *a) _pure_;
-// UNNEEDED int socket_address_unlink(SocketAddress *a);
+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);
+int socket_address_print(const SocketAddress *a, char **p);
+int socket_address_verify(const SocketAddress *a) _pure_;
+int socket_address_unlink(SocketAddress *a);
-// UNNEEDED bool socket_address_can_accept(const SocketAddress *a) _pure_;
+bool socket_address_can_accept(const SocketAddress *a) _pure_;
-/// UNNEEDED by elogind
-#if 0
int socket_address_listen(
const SocketAddress *a,
int flags,
mode_t directory_mode,
mode_t socket_mode,
const char *label);
-int make_socket_fd(int log_level, const char* address, int flags);
-#endif // 0
+int make_socket_fd(int log_level, const char* address, int type, int flags);
-// UNNEEDED bool socket_address_is(const SocketAddress *a, const char *s, int type);
-// UNNEEDED bool socket_address_is_netlink(const SocketAddress *a, const char *s);
+bool socket_address_is(const SocketAddress *a, const char *s, int type);
+bool socket_address_is_netlink(const SocketAddress *a, const char *s);
-// UNNEEDED bool socket_address_matches_fd(const SocketAddress *a, int fd);
+bool socket_address_matches_fd(const SocketAddress *a, int fd);
-// UNNEEDED bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) _pure_;
+bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) _pure_;
-// UNNEEDED const char* socket_address_get_path(const SocketAddress *a);
+const char* socket_address_get_path(const SocketAddress *a);
+#endif // 0
bool socket_ipv6_is_supported(void);
-// UNNEEDED int sockaddr_port(const struct sockaddr *_sa) _pure_;
+#if 0 /// UNNEEDED by elogind
+int sockaddr_port(const struct sockaddr *_sa) _pure_;
-// UNNEEDED Sint sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_ipv6, bool include_port, char **ret);
-// UNNEEDED int getpeername_pretty(int fd, char **ret);
-// UNNEEDED int getsockname_pretty(int fd, char **ret);
+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);
-// UNNEEDED int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret);
-// UNNEEDED int getnameinfo_pretty(int fd, char **ret);
+int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret);
+int getnameinfo_pretty(int fd, char **ret);
-// UNNEEDED const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_;
-// UNNEEDED SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_;
+const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_;
+SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_;
-// UNNEEDED int netlink_family_to_string_alloc(int b, char **s);
-// UNNEEDED int netlink_family_from_string(const char *s) _pure_;
+int netlink_family_to_string_alloc(int b, char **s);
+int netlink_family_from_string(const char *s) _pure_;
-// UNNEEDED bool sockaddr_equal(const union sockaddr_union *a, const union sockaddr_union *b);
+bool sockaddr_equal(const union sockaddr_union *a, const union sockaddr_union *b);
+#endif // 0
int fd_inc_sndbuf(int fd, size_t n);
int fd_inc_rcvbuf(int fd, size_t n);
+#if 0 /// UNNEEDED by elogind
-// UNNEEDED int ip_tos_to_string_alloc(int i, char **s);
-// UNNEEDED int ip_tos_from_string(const char *s);
+int ip_tos_to_string_alloc(int i, char **s);
+int ip_tos_from_string(const char *s);
+#endif // 0
int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret);
-int send_one_fd(int transport_fd, int fd, int flags);
-// UNNEEDED int receive_one_fd(int transport_fd, int flags);
+int send_one_fd_sa(int transport_fd,
+ int fd,
+ const struct sockaddr *sa, socklen_t len,
+ int flags);
+#define send_one_fd(transport_fd, fd, flags) send_one_fd_sa(transport_fd, fd, NULL, 0, flags)
+#if 0 /// UNNEEDED by elogind
+int receive_one_fd(int transport_fd, int flags);
+#endif // 0
#define CMSG_FOREACH(cmsg, mh) \
for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg)))
+
+/* Covers only file system and abstract AF_UNIX socket addresses, but not unnamed socket addresses. */
+#define SOCKADDR_UN_LEN(sa) \
+ ({ \
+ const struct sockaddr_un *_sa = &(sa); \
+ assert(_sa->sun_family == AF_UNIX); \
+ offsetof(struct sockaddr_un, sun_path) + \
+ (_sa->sun_path[0] == 0 ? \
+ 1 + strnlen(_sa->sun_path+1, sizeof(_sa->sun_path)-1) : \
+ strnlen(_sa->sun_path, sizeof(_sa->sun_path))); \
+ })