int main(void) { skip_if_unavailable("/proc/self/fd/"); static const struct sockaddr_un addr = { .sun_family = AF_UNIX, .sun_path = TEST_SOCKET }; struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr)); TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len); *len = offsetof(struct sockaddr_un, sun_path) + strlen(TEST_SOCKET) + 1; if (*len > sizeof(addr)) *len = sizeof(addr); int listen_fd = socket(AF_UNIX, SOCK_STREAM, 0); if (listen_fd < 0) perror_msg_and_skip("socket"); unsigned long listen_inode = inode_of_sockfd(listen_fd); printf("socket(AF_UNIX, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", listen_fd, listen_inode); (void) unlink(TEST_SOCKET); if (bind(listen_fd, listen_sa, *len)) perror_msg_and_skip("bind"); printf("bind(%d<socket:[%lu]>, {sa_family=AF_UNIX, sun_path=\"%s\"}" ", %u) = 0\n", listen_fd, listen_inode, TEST_SOCKET, (unsigned) *len); if (listen(listen_fd, 1)) perror_msg_and_skip("listen"); printf("listen(%d<socket:[%lu]>, 1) = 0\n", listen_fd, listen_inode); TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, optval); *len = sizeof(*optval); if (getsockopt(listen_fd, SOL_SOCKET, SO_PASSCRED, optval, len)) perror_msg_and_fail("getsockopt"); printf("getsockopt(%d<socket:[%lu]>, SOL_SOCKET, SO_PASSCRED" ", [%u], [%u]) = 0\n", listen_fd, listen_inode, *optval, (unsigned) *len); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(listen_fd, listen_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, [%d->%d]) = 0\n", listen_fd, listen_inode, TEST_SOCKET, (int) sizeof(addr), (int) *len); int connect_fd = socket(AF_UNIX, SOCK_STREAM, 0); if (connect_fd < 0) perror_msg_and_fail("socket"); unsigned long connect_inode = inode_of_sockfd(connect_fd); printf("socket(AF_UNIX, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", connect_fd, connect_inode); if (connect(connect_fd, listen_sa, *len)) perror_msg_and_fail("connect"); printf("connect(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, %u) = 0\n", connect_fd, connect_inode, TEST_SOCKET, (unsigned) *len); struct sockaddr * const accept_sa = tail_alloc(sizeof(addr)); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); int accept_fd = accept(listen_fd, accept_sa, len); if (accept_fd < 0) perror_msg_and_fail("accept"); unsigned long accept_inode = inode_of_sockfd(accept_fd); printf("accept(%d<socket:[%lu]>, {sa_family=AF_UNIX}" ", [%d->%d]) = %d<socket:[%lu]>\n", listen_fd, listen_inode, (int) sizeof(addr), (int) *len, accept_fd, accept_inode); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(connect_fd, listen_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, [%d->%d]) = 0\n", connect_fd, connect_inode, TEST_SOCKET, (int) sizeof(addr), (int) *len); char text[] = "text"; assert(sendto(connect_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1); printf("sendto(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, 0) = %u\n", connect_fd, connect_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(connect_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", connect_fd, connect_inode); assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, NULL) == sizeof(text) - 1); printf("recvfrom(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, NULL) = %u\n", accept_fd, accept_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(accept_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", accept_fd, accept_inode); connect_fd = socket(AF_UNIX, SOCK_STREAM, 0); if (connect_fd < 0) perror_msg_and_fail("socket"); connect_inode = inode_of_sockfd(connect_fd); printf("socket(AF_UNIX, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", connect_fd, connect_inode); *optval = 1; *len = sizeof(*optval); if (setsockopt(connect_fd, SOL_SOCKET, SO_PASSCRED, optval, *len)) perror_msg_and_fail("setsockopt"); printf("setsockopt(%d<socket:[%lu]>, SOL_SOCKET, SO_PASSCRED" ", [%u], %u) = 0\n", connect_fd, connect_inode, *optval, (unsigned) *len); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(listen_fd, listen_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, [%d->%d]) = 0\n", listen_fd, listen_inode, TEST_SOCKET, (int) sizeof(addr), (int) *len); if (connect(connect_fd, listen_sa, *len)) perror_msg_and_fail("connect"); printf("connect(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, %u) = 0\n", connect_fd, connect_inode, TEST_SOCKET, (unsigned) *len); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); accept_fd = accept(listen_fd, accept_sa, len); if (accept_fd < 0) perror_msg_and_fail("accept"); accept_inode = inode_of_sockfd(accept_fd); const char * const sun_path1 = ((struct sockaddr_un *) accept_sa)->sun_path + 1; printf("accept(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=@\"%s\"}, [%d->%d]) = %d<socket:[%lu]>\n", listen_fd, listen_inode, sun_path1, (int) sizeof(addr), (int) *len, accept_fd, accept_inode); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(connect_fd, listen_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=\"%s\"}, [%d->%d]) = 0\n", connect_fd, connect_inode, TEST_SOCKET, (int) sizeof(addr), (int) *len); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(connect_fd, accept_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_UNIX" ", sun_path=@\"%s\"}, [%d->%d]) = 0\n", connect_fd, connect_inode, sun_path1, (int) sizeof(addr), (int) *len); assert(sendto(connect_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1); printf("sendto(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, 0) = %u\n", connect_fd, connect_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(connect_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", connect_fd, connect_inode); assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, NULL) == sizeof(text) - 1); printf("recvfrom(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, NULL) = %u\n", accept_fd, accept_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(accept_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", accept_fd, accept_inode); assert(unlink(TEST_SOCKET) == 0); assert(close(listen_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", listen_fd, listen_inode); puts("+++ exited with 0 +++"); return 0; }
int main(int ac, const char **av) { assert(ac == 2); struct sockaddr_un addr = { .sun_family = AF_UNIX }; unsigned int sun_path_len = strlen(av[1]); assert(sun_path_len > 0 && sun_path_len <= sizeof(addr.sun_path)); strncpy(addr.sun_path, av[1], sizeof(addr.sun_path)); struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr)); socklen_t * const len = tail_alloc(sizeof(socklen_t)); *len = offsetof(struct sockaddr_un, sun_path) + strlen(av[1]) + 1; if (*len > sizeof(addr)) *len = sizeof(addr); int listen_fd = socket(PF_LOCAL, SOCK_STREAM, 0); if (listen_fd < 0) perror_msg_and_skip("socket"); unsigned long listen_inode = inode_of_sockfd(listen_fd); printf("socket(PF_LOCAL, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", listen_fd, listen_inode); (void) unlink(av[1]); if (bind(listen_fd, listen_sa, *len)) perror_msg_and_skip("bind"); printf("bind(%d<socket:[%lu]>, {sa_family=AF_LOCAL, sun_path=\"%s\"}" ", %u) = 0\n", listen_fd, listen_inode, av[1], (unsigned) *len); if (listen(listen_fd, 1)) perror_msg_and_skip("listen"); printf("listen(%d<socket:[%lu]>, 1) = 0\n", listen_fd, listen_inode); unsigned int * const optval = tail_alloc(sizeof(unsigned int)); *len = sizeof(*optval); if (getsockopt(listen_fd, SOL_SOCKET, SO_PASSCRED, optval, len)) perror_msg_and_fail("getsockopt"); printf("getsockopt(%d<socket:[%lu]>, SOL_SOCKET, SO_PASSCRED" ", [%u], [%u]) = 0\n", listen_fd, listen_inode, *optval, (unsigned) *len); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(listen_fd, listen_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, [%u]) = 0\n", listen_fd, listen_inode, av[1], (unsigned) *len); int connect_fd = socket(PF_LOCAL, SOCK_STREAM, 0); if (connect_fd < 0) perror_msg_and_fail("socket"); unsigned long connect_inode = inode_of_sockfd(connect_fd); printf("socket(PF_LOCAL, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", connect_fd, connect_inode); if (connect(connect_fd, listen_sa, *len)) perror_msg_and_fail("connect"); printf("connect(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, %u) = 0\n", connect_fd, connect_inode, av[1], (unsigned) *len); struct sockaddr * const accept_sa = tail_alloc(sizeof(addr)); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); int accept_fd = accept(listen_fd, accept_sa, len); if (accept_fd < 0) perror_msg_and_fail("accept"); unsigned long accept_inode = inode_of_sockfd(accept_fd); printf("accept(%d<socket:[%lu]>, {sa_family=AF_LOCAL, NULL}" ", [%u]) = %d<socket:[%lu]>\n", listen_fd, listen_inode, (unsigned) *len, accept_fd, accept_inode); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(connect_fd, listen_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, [%u]) = 0\n", connect_fd, connect_inode, av[1], (unsigned) *len); char text[] = "text"; assert(sendto(connect_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1); printf("sendto(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, 0) = %u\n", connect_fd, connect_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(connect_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", connect_fd, connect_inode); assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, NULL) == sizeof(text) - 1); printf("recvfrom(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, NULL) = %u\n", accept_fd, accept_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(accept_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", accept_fd, accept_inode); connect_fd = socket(PF_LOCAL, SOCK_STREAM, 0); if (connect_fd < 0) perror_msg_and_fail("socket"); connect_inode = inode_of_sockfd(connect_fd); printf("socket(PF_LOCAL, SOCK_STREAM, 0) = %d<socket:[%lu]>\n", connect_fd, connect_inode); *optval = 1; *len = sizeof(*optval); if (setsockopt(connect_fd, SOL_SOCKET, SO_PASSCRED, optval, *len)) perror_msg_and_fail("setsockopt"); printf("setsockopt(%d<socket:[%lu]>, SOL_SOCKET, SO_PASSCRED" ", [%u], %u) = 0\n", connect_fd, connect_inode, *optval, (unsigned) *len); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(listen_fd, listen_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, [%u]) = 0\n", listen_fd, listen_inode, av[1], (unsigned) *len); if (connect(connect_fd, listen_sa, *len)) perror_msg_and_fail("connect"); printf("connect(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, %u) = 0\n", connect_fd, connect_inode, av[1], (unsigned) *len); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); accept_fd = accept(listen_fd, accept_sa, len); if (accept_fd < 0) perror_msg_and_fail("accept"); accept_inode = inode_of_sockfd(accept_fd); const char * const sun_path1 = ((struct sockaddr_un *) accept_sa) -> sun_path + 1; printf("accept(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=@\"%s\"}, [%u]) = %d<socket:[%lu]>\n", listen_fd, listen_inode, sun_path1, (unsigned) *len, accept_fd, accept_inode); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(connect_fd, listen_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=\"%s\"}, [%u]) = 0\n", connect_fd, connect_inode, av[1], (unsigned) *len); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(connect_fd, accept_sa, len)) perror_msg_and_fail("getsockname"); printf("getsockname(%d<socket:[%lu]>, {sa_family=AF_LOCAL" ", sun_path=@\"%s\"}, [%u]) = 0\n", connect_fd, connect_inode, sun_path1, (unsigned) *len); assert(sendto(connect_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1); printf("sendto(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, 0) = %u\n", connect_fd, connect_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(connect_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", connect_fd, connect_inode); assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_DONTWAIT, NULL, NULL) == sizeof(text) - 1); printf("recvfrom(%d<socket:[%lu]>, \"%s\", %u, MSG_DONTWAIT" ", NULL, NULL) = %u\n", accept_fd, accept_inode, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(accept_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", accept_fd, accept_inode); assert(unlink(av[1]) == 0); assert(close(listen_fd) == 0); printf("close(%d<socket:[%lu]>) = 0\n", listen_fd, listen_inode); puts("+++ exited with 0 +++"); return 0; }
int main(void) { skip_if_unavailable("/proc/self/fd/"); const struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) }; struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr)); TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len); *len = sizeof(addr); const int listen_fd = socket(AF_INET, SOCK_STREAM, 0); if (listen_fd < 0) perror_msg_and_skip("socket"); const unsigned long listen_inode = inode_of_sockfd(listen_fd); printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n", listen_fd, listen_inode); if (bind(listen_fd, listen_sa, *len)) perror_msg_and_skip("bind"); printf("bind(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(0)" ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n", listen_fd, listen_inode, (unsigned) *len); if (listen(listen_fd, 1)) perror_msg_and_skip("listen"); printf("listen(%d<TCP:[%lu]>, 1) = 0\n", listen_fd, listen_inode); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getsockname(listen_fd, listen_sa, len)) perror_msg_and_fail("getsockname"); const unsigned int listen_port = ntohs(((struct sockaddr_in *) listen_sa)->sin_port); printf("getsockname(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET" ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}" ", [%u]) = 0\n", listen_fd, listen_port, listen_port, (unsigned) *len); TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, optval); *len = sizeof(*optval); if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len)) perror_msg_and_fail("getsockopt"); printf("getsockopt(%d<TCP:[127.0.0.1:%u]>, SOL_TCP, TCP_MAXSEG" ", [%u], [%u]) = 0\n", listen_fd, listen_port, *optval, (unsigned) *len); const int connect_fd = socket(AF_INET, SOCK_STREAM, 0); if (connect_fd < 0) perror_msg_and_fail("socket"); const unsigned long connect_inode = inode_of_sockfd(connect_fd); printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n", connect_fd, connect_inode); *len = sizeof(addr); if (connect(connect_fd, listen_sa, *len)) perror_msg_and_fail("connect"); printf("connect(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(%u)" ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n", connect_fd, connect_inode, listen_port, (unsigned) *len); struct sockaddr * const accept_sa = tail_alloc(sizeof(addr)); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); const int accept_fd = accept(listen_fd, accept_sa, len); if (accept_fd < 0) perror_msg_and_fail("accept"); const unsigned int connect_port = ntohs(((struct sockaddr_in *) accept_sa)->sin_port); printf("accept(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET" ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}" ", [%u]) = %d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>\n", listen_fd, listen_port, connect_port, (unsigned) *len, accept_fd, listen_port, connect_port); memset(accept_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(accept_fd, accept_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>" ", {sa_family=AF_INET, sin_port=htons(%u)" ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n", accept_fd, listen_port, connect_port, connect_port, (unsigned) *len); memset(listen_sa, 0, sizeof(addr)); *len = sizeof(addr); if (getpeername(connect_fd, listen_sa, len)) perror_msg_and_fail("getpeername"); printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>" ", {sa_family=AF_INET, sin_port=htons(%u)" ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n", connect_fd, connect_port, listen_port, listen_port, (unsigned) *len); *len = sizeof(*optval); if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len)) perror_msg_and_fail("setsockopt"); printf("setsockopt(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>" ", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n", connect_fd, connect_port, listen_port, *optval, (unsigned) *len); char text[] = "text"; assert(sendto(connect_fd, text, sizeof(text) - 1, MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1); printf("sendto(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u" ", MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n", connect_fd, connect_port, listen_port, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(connect_fd) == 0); printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n", connect_fd, connect_port, listen_port); assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_WAITALL, NULL, NULL) == sizeof(text) - 1); printf("recvfrom(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u" ", MSG_WAITALL, NULL, NULL) = %u\n", accept_fd, listen_port, connect_port, text, (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1); assert(close(accept_fd) == 0); printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n", accept_fd, listen_port, connect_port); assert(close(listen_fd) == 0); printf("close(%d<TCP:[127.0.0.1:%u]>) = 0\n", listen_fd, listen_port); puts("+++ exited with 0 +++"); return 0; }