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-rw-r--r--src/bacon-message-connection.c396
1 files changed, 0 insertions, 396 deletions
diff --git a/src/bacon-message-connection.c b/src/bacon-message-connection.c
deleted file mode 100644
index be50d87..0000000
--- a/src/bacon-message-connection.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * Copyright (C) 2003 Bastien Nocera <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <errno.h>
-
-#include "bacon-message-connection.h"
-
-#ifndef UNIX_PATH_MAX
-#define UNIX_PATH_MAX 108
-#endif
-
-struct BaconMessageConnection {
- /* A server accepts connections */
- gboolean is_server;
-
- /* The socket path itself */
- char *path;
-
- /* File descriptor of the socket */
- int fd;
- /* Channel to watch */
- GIOChannel *chan;
- /* Event id returned by g_io_add_watch() */
- int conn_id;
-
- /* Connections accepted by this connection */
- GSList *accepted_connections;
-
- /* callback */
- void (*func) (const char *message, gpointer user_data);
- gpointer data;
-};
-
-static gboolean
-test_is_socket (const char *path)
-{
- struct stat s;
-
- if (stat (path, &s) == -1)
- return FALSE;
-
- if (S_ISSOCK (s.st_mode))
- return TRUE;
-
- return FALSE;
-}
-
-static gboolean
-is_owned_by_user_and_socket (const char *path)
-{
- struct stat s;
-
- if (stat (path, &s) == -1)
- return FALSE;
-
- if (s.st_uid != geteuid ())
- return FALSE;
-
- if ((s.st_mode & S_IFSOCK) != S_IFSOCK)
- return FALSE;
-
- return TRUE;
-}
-
-static gboolean server_cb (GIOChannel *source,
- GIOCondition condition, gpointer data);
-
-static gboolean
-setup_connection (BaconMessageConnection *conn)
-{
- g_return_val_if_fail (conn->chan == NULL, FALSE);
-
- conn->chan = g_io_channel_unix_new (conn->fd);
- if (!conn->chan) {
- return FALSE;
- }
- g_io_channel_set_line_term (conn->chan, "\n", 1);
- conn->conn_id = g_io_add_watch (conn->chan, G_IO_IN, server_cb, conn);
-
- return TRUE;
-}
-
-static void
-accept_new_connection (BaconMessageConnection *server_conn)
-{
- BaconMessageConnection *conn;
- int alen;
-
- g_return_if_fail (server_conn->is_server);
-
- conn = g_new0 (BaconMessageConnection, 1);
- conn->is_server = FALSE;
- conn->func = server_conn->func;
- conn->data = server_conn->data;
-
- conn->fd = accept (server_conn->fd, NULL, (guint *)&alen);
-
- server_conn->accepted_connections =
- g_slist_prepend (server_conn->accepted_connections, conn);
-
- setup_connection (conn);
-}
-
-static gboolean
-server_cb (GIOChannel *source, GIOCondition condition, gpointer data)
-{
- BaconMessageConnection *conn = (BaconMessageConnection *)data;
- char *message, *subs, buf;
- int cd, rc, offset;
- gboolean finished;
-
- offset = 0;
- if (conn->is_server && conn->fd == g_io_channel_unix_get_fd (source)) {
- accept_new_connection (conn);
- return TRUE;
- }
- message = g_malloc (1);
- cd = conn->fd;
- rc = read (cd, &buf, 1);
- while (rc > 0 && buf != '\n')
- {
- message = g_realloc (message, rc + offset + 1);
- message[offset] = buf;
- offset = offset + rc;
- rc = read (cd, &buf, 1);
- }
- if (rc <= 0) {
- g_io_channel_shutdown (conn->chan, FALSE, NULL);
- g_io_channel_unref (conn->chan);
- conn->chan = NULL;
- close (conn->fd);
- conn->fd = -1;
- g_free (message);
- conn->conn_id = 0;
-
- return FALSE;
- }
- message[offset] = '\0';
-
- subs = message;
- finished = FALSE;
-
- while (finished == FALSE && *subs != '\0')
- {
- if (conn->func != NULL)
- (*conn->func) (subs, conn->data);
-
- subs += strlen (subs) + 1;
- if (subs - message >= offset)
- finished = TRUE;
- }
-
- g_free (message);
-
- return TRUE;
-}
-
-static char *
-find_file_with_pattern (const char *dir, const char *pattern)
-{
- GDir *filedir;
- char *found_filename;
- const char *filename;
- GPatternSpec *pat;
-
- filedir = g_dir_open (dir, 0, NULL);
- if (filedir == NULL)
- return NULL;
-
- pat = g_pattern_spec_new (pattern);
- if (pat == NULL)
- {
- g_dir_close (filedir);
- return NULL;
- }
-
- found_filename = NULL;
-
- while ((filename = g_dir_read_name (filedir)))
- {
- if (g_pattern_match_string (pat, filename))
- {
- char *tmp = g_build_filename (dir, filename, NULL);
- if (is_owned_by_user_and_socket (tmp))
- found_filename = g_strdup (filename);
- g_free (tmp);
- }
-
- if (found_filename != NULL)
- break;
- }
-
- g_pattern_spec_free (pat);
- g_dir_close (filedir);
-
- return found_filename;
-}
-
-static char *
-socket_filename (const char *prefix)
-{
- char *pattern, *newfile, *path, *filename;
- const char *tmpdir;
-
- pattern = g_strdup_printf ("%s.%s.*", prefix, g_get_user_name ());
- tmpdir = g_get_user_runtime_dir ();
- filename = find_file_with_pattern (tmpdir, pattern);
- if (filename == NULL)
- {
- newfile = g_strdup_printf ("%s.%s.%u", prefix,
- g_get_user_name (), g_random_int ());
- path = g_build_filename (tmpdir, newfile, NULL);
- g_free (newfile);
- } else {
- path = g_build_filename (tmpdir, filename, NULL);
- g_free (filename);
- }
-
- g_free (pattern);
- return path;
-}
-
-static gboolean
-try_server (BaconMessageConnection *conn)
-{
- struct sockaddr_un uaddr;
-
- uaddr.sun_family = AF_UNIX;
- strncpy (uaddr.sun_path, conn->path,
- MIN (strlen(conn->path)+1, UNIX_PATH_MAX));
- conn->fd = socket (PF_UNIX, SOCK_STREAM, 0);
- if (bind (conn->fd, (struct sockaddr *) &uaddr, sizeof (uaddr)) == -1)
- {
- conn->fd = -1;
- return FALSE;
- }
- listen (conn->fd, 5);
-
- if (!setup_connection (conn))
- return FALSE;
- return TRUE;
-}
-
-static gboolean
-try_client (BaconMessageConnection *conn)
-{
- struct sockaddr_un uaddr;
-
- uaddr.sun_family = AF_UNIX;
- strncpy (uaddr.sun_path, conn->path,
- MIN(strlen(conn->path)+1, UNIX_PATH_MAX));
- conn->fd = socket (PF_UNIX, SOCK_STREAM, 0);
- if (connect (conn->fd, (struct sockaddr *) &uaddr,
- sizeof (uaddr)) == -1)
- {
- conn->fd = -1;
- return FALSE;
- }
-
- return setup_connection (conn);
-}
-
-BaconMessageConnection *
-bacon_message_connection_new (const char *prefix)
-{
- BaconMessageConnection *conn;
-
- g_return_val_if_fail (prefix != NULL, NULL);
-
- conn = g_new0 (BaconMessageConnection, 1);
- conn->path = socket_filename (prefix);
-
- if (test_is_socket (conn->path) == FALSE)
- {
- if (!try_server (conn))
- {
- bacon_message_connection_free (conn);
- return NULL;
- }
-
- conn->is_server = TRUE;
- return conn;
- }
-
- if (try_client (conn) == FALSE)
- {
- unlink (conn->path);
- try_server (conn);
- if (conn->fd == -1)
- {
- bacon_message_connection_free (conn);
- return NULL;
- }
-
- conn->is_server = TRUE;
- return conn;
- }
-
- conn->is_server = FALSE;
- return conn;
-}
-
-void
-bacon_message_connection_free (BaconMessageConnection *conn)
-{
- GSList *child_conn;
-
- g_return_if_fail (conn != NULL);
- /* Only servers can accept other connections */
- g_return_if_fail (conn->is_server != FALSE ||
- conn->accepted_connections == NULL);
-
- child_conn = conn->accepted_connections;
- while (child_conn != NULL) {
- bacon_message_connection_free (child_conn->data);
- child_conn = g_slist_next (child_conn);
- }
- g_slist_free (conn->accepted_connections);
-
- if (conn->conn_id) {
- g_source_remove (conn->conn_id);
- conn->conn_id = 0;
- }
- if (conn->chan) {
- g_io_channel_shutdown (conn->chan, FALSE, NULL);
- g_io_channel_unref (conn->chan);
- }
-
- if (conn->is_server != FALSE) {
- unlink (conn->path);
- }
- if (conn->fd != -1) {
- close (conn->fd);
- }
-
- g_free (conn->path);
- g_free (conn);
-}
-
-void
-bacon_message_connection_set_callback (BaconMessageConnection *conn,
- BaconMessageReceivedFunc func,
- gpointer user_data)
-{
- g_return_if_fail (conn != NULL);
-
- conn->func = func;
- conn->data = user_data;
-}
-
-void
-bacon_message_connection_send (BaconMessageConnection *conn,
- const char *message)
-{
- g_return_if_fail (conn != NULL);
- g_return_if_fail (message != NULL);
-
- g_io_channel_write_chars (conn->chan, message, strlen (message),
- NULL, NULL);
- g_io_channel_write_chars (conn->chan, "\n", 1, NULL, NULL);
- g_io_channel_flush (conn->chan, NULL);
-}
-
-gboolean
-bacon_message_connection_get_is_server (BaconMessageConnection *conn)
-{
- g_return_val_if_fail (conn != NULL, FALSE);
-
- return conn->is_server;
-}
-
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