260 lines
7.8 KiB
C
260 lines
7.8 KiB
C
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#define EFL_NET_SERVER_UNIX_PROTECTED 1
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#define EFL_NET_SERVER_FD_PROTECTED 1
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#define EFL_NET_SERVER_PROTECTED 1
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#define EFL_LOOP_FD_PROTECTED 1
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "Ecore.h"
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#include "Ecore_Con.h"
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#include "ecore_con_private.h"
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h>
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#endif
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/* no include EVIL as it's not supposed to be compiled on Windows */
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#define MY_CLASS EFL_NET_SERVER_UNIX_CLASS
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typedef struct _Efl_Net_Server_Unix_Data
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{
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Efl_Future *bind_job;
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Eina_Bool unlink_before_bind;
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} Efl_Net_Server_Unix_Data;
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EOLIAN static void
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_efl_net_server_unix_efl_object_destructor(Eo *o, Efl_Net_Server_Unix_Data *pd EINA_UNUSED)
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{
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SOCKET fd = efl_loop_fd_get(o);
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if (fd != INVALID_SOCKET)
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{
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const char *address = efl_net_server_address_get(o);
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if ((address) && (strncmp(address, "abstract:", strlen("abstract:")) != 0))
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unlink(address);
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}
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efl_destructor(efl_super(o, MY_CLASS));
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}
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static void
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_efl_net_server_unix_bind_job(void *data, const Efl_Event *event EINA_UNUSED)
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{
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Eo *o = data;
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Efl_Net_Server_Unix_Data *pd = efl_data_scope_get(o, MY_CLASS);
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const char *address = efl_net_server_address_get(o);
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struct sockaddr_un addr = { .sun_family = AF_UNIX };
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socklen_t addrlen;
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SOCKET fd;
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Eina_Error err = 0;
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int r;
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pd->bind_job = NULL;
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efl_ref(o); /* we're emitting callbacks then continuing the workflow */
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efl_net_server_fd_family_set(o, AF_UNIX);
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do
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{
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fd = efl_net_socket4(AF_UNIX, SOCK_STREAM, 0,
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efl_net_server_fd_close_on_exec_get(o));
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if (fd == INVALID_SOCKET)
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{
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err = efl_net_socket_error_get();
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ERR("socket(AF_UNIX, SOCK_STREAM, 0): %s", eina_error_msg_get(err));
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goto error;
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}
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if (strncmp(address, "abstract:", strlen("abstract:")) == 0)
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{
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const char *path = address + strlen("abstract:");
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if (strlen(path) + 2 > sizeof(addr.sun_path))
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{
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ERR("abstract path is too long: %s", path);
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err = EFL_NET_SERVER_ERROR_COULDNT_RESOLVE_HOST;
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}
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addr.sun_path[0] = '\0';
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memcpy(addr.sun_path + 1, path, strlen(path) + 1);
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addrlen = strlen(path) + 2 + offsetof(struct sockaddr_un, sun_path);
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}
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else
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{
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const char *path = address;
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if (strlen(path) + 1 > sizeof(addr.sun_path))
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{
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ERR("path is too long: %s", path);
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err = EFL_NET_SERVER_ERROR_COULDNT_RESOLVE_HOST;
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}
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memcpy(addr.sun_path, path, strlen(path) + 1);
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addrlen = strlen(path) + 1 + offsetof(struct sockaddr_un, sun_path);
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}
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if ((pd->unlink_before_bind) && (addr.sun_path[0] != '\0'))
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{
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DBG("unlinking AF_UNIX path '%s'", addr.sun_path);
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unlink(addr.sun_path);
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}
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r = bind(fd, (struct sockaddr *)&addr, addrlen);
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if (r != 0)
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{
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err = efl_net_socket_error_get();
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if ((err == EADDRINUSE) && (pd->unlink_before_bind) && (addr.sun_path[0] != '\0'))
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{
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closesocket(fd);
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err = 0;
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continue;
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}
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DBG("bind(%d, %s): %s", fd, address, eina_error_msg_get(err));
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goto error;
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}
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break;
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}
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while (pd->unlink_before_bind);
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efl_loop_fd_set(o, fd);
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r = listen(fd, 0);
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if (r != 0)
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{
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err = efl_net_socket_error_get();
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DBG("listen(%d): %s", fd, eina_error_msg_get(err));
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goto error;
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}
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addrlen = sizeof(addr);
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if (getsockname(fd, (struct sockaddr *)&addr, &addrlen) != 0)
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{
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err = efl_net_socket_error_get();
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ERR("getsockname(%d): %s", fd, eina_error_msg_get(err));
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goto error;
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}
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else
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{
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char str[sizeof(addr) + sizeof("abstract:")];
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if (!efl_net_unix_fmt(str, sizeof(str), fd, &addr, addrlen))
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ERR("could not format unix address");
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else
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{
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efl_net_server_address_set(o, str);
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address = efl_net_server_address_get(o);
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}
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}
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DBG("fd=%d serving at %s", fd, address);
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efl_net_server_serving_set(o, EINA_TRUE);
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error:
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if (err)
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{
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efl_event_callback_call(o, EFL_NET_SERVER_EVENT_ERROR, &err);
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if (fd) closesocket(fd);
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efl_loop_fd_set(o, INVALID_SOCKET);
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}
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efl_unref(o);
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}
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EOLIAN static Eina_Error
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_efl_net_server_unix_efl_net_server_serve(Eo *o, Efl_Net_Server_Unix_Data *pd, const char *address)
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{
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EINA_SAFETY_ON_NULL_RETURN_VAL(address, EINVAL);
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EINA_SAFETY_ON_TRUE_RETURN_VAL(address[0] == '\0', EINVAL);
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efl_net_server_address_set(o, address);
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if (pd->bind_job)
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efl_future_cancel(pd->bind_job);
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efl_future_use(&pd->bind_job, efl_loop_job(efl_loop_get(o), o));
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efl_future_then(pd->bind_job, _efl_net_server_unix_bind_job, NULL, NULL, o);
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efl_future_link(o, pd->bind_job);
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return 0;
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}
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static Efl_Callback_Array_Item *_efl_net_server_unix_client_cbs(void);
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static void
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_efl_net_server_unix_client_event_closed(void *data, const Efl_Event *event)
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{
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Eo *server = data;
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Eo *client = event->object;
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efl_event_callback_array_del(client, _efl_net_server_unix_client_cbs(), server);
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if (efl_parent_get(client) == server)
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efl_parent_set(client, NULL);
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efl_net_server_clients_count_set(server, efl_net_server_clients_count_get(server) - 1);
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}
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EFL_CALLBACKS_ARRAY_DEFINE(_efl_net_server_unix_client_cbs,
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{ EFL_IO_CLOSER_EVENT_CLOSED, _efl_net_server_unix_client_event_closed });
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static void
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_efl_net_server_unix_efl_net_server_fd_client_add(Eo *o, Efl_Net_Server_Unix_Data *pd EINA_UNUSED, int client_fd)
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{
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Eo *client = efl_add(EFL_NET_SOCKET_UNIX_CLASS, o,
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efl_event_callback_array_add(efl_added, _efl_net_server_unix_client_cbs(), o),
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efl_io_closer_close_on_exec_set(efl_added, efl_net_server_fd_close_on_exec_get(o)),
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efl_io_closer_close_on_destructor_set(efl_added, EINA_TRUE),
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efl_loop_fd_set(efl_added, client_fd));
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if (!client)
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{
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ERR("could not create client object fd=%d", client_fd);
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closesocket(client_fd);
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return;
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}
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efl_net_server_clients_count_set(o, efl_net_server_clients_count_get(o) + 1);
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efl_event_callback_call(o, EFL_NET_SERVER_EVENT_CLIENT_ADD, client);
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if (efl_ref_get(client) == 1) /* users must take a reference themselves */
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{
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DBG("client %s was not handled, closing it...",
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efl_net_socket_address_remote_get(client));
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efl_del(client);
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}
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}
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static void
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_efl_net_server_unix_efl_net_server_fd_client_reject(Eo *o, Efl_Net_Server_Unix_Data *pd EINA_UNUSED, int client_fd)
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{
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struct sockaddr_un addr;
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socklen_t addrlen;
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char str[sizeof(addr) + sizeof("abstract:")] = "";
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addrlen = sizeof(addr);
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if (getpeername(client_fd, (struct sockaddr *)&addr, &addrlen) != 0)
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ERR("getpeername(%d): %s", client_fd, eina_error_msg_get(efl_net_socket_error_get()));
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else
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{
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if (!efl_net_unix_fmt(str, sizeof(str), client_fd, &addr, addrlen))
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ERR("could not format rejected client unix address fd=%d", client_fd);
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}
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closesocket(client_fd);
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efl_event_callback_call(o, EFL_NET_SERVER_EVENT_CLIENT_REJECTED, str);
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}
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static void
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_efl_net_server_unix_unlink_before_bind_set(Eo *o EINA_UNUSED, Efl_Net_Server_Unix_Data *pd, Eina_Bool unlink_before_bind)
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{
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pd->unlink_before_bind = unlink_before_bind;
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}
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static Eina_Bool
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_efl_net_server_unix_unlink_before_bind_get(Eo *o EINA_UNUSED, Efl_Net_Server_Unix_Data *pd)
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{
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return pd->unlink_before_bind;
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}
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#include "efl_net_server_unix.eo.c"
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