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-rw-r--r--src/bacon-message-connection.c530
1 files changed, 265 insertions, 265 deletions
diff --git a/src/bacon-message-connection.c b/src/bacon-message-connection.c
index 7b35342..4b8014b 100644
--- a/src/bacon-message-connection.c
+++ b/src/bacon-message-connection.c
@@ -35,362 +35,362 @@
#endif
struct BaconMessageConnection {
- /* A server accepts connections */
- gboolean is_server;
+ /* A server accepts connections */
+ gboolean is_server;
- /* The socket path itself */
- char *path;
+ /* 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;
+ /* 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;
+ /* Connections accepted by this connection */
+ GSList *accepted_connections;
- /* callback */
- void (*func) (const char *message, gpointer user_data);
- gpointer data;
+ /* callback */
+ void (*func) (const char *message, gpointer user_data);
+ gpointer data;
};
static gboolean
test_is_socket (const char *path)
{
- struct stat s;
+ struct stat s;
- if (stat (path, &s) == -1)
- return FALSE;
+ if (stat (path, &s) == -1)
+ return FALSE;
- if (S_ISSOCK (s.st_mode))
- return TRUE;
+ if (S_ISSOCK (s.st_mode))
+ return TRUE;
- return FALSE;
+ return FALSE;
}
static gboolean
is_owned_by_user_and_socket (const char *path)
{
- struct stat s;
+ struct stat s;
- if (stat (path, &s) == -1)
- return FALSE;
+ if (stat (path, &s) == -1)
+ return FALSE;
- if (s.st_uid != geteuid ())
- return FALSE;
+ if (s.st_uid != geteuid ())
+ return FALSE;
- if ((s.st_mode & S_IFSOCK) != S_IFSOCK)
- return FALSE;
-
- return TRUE;
+ if ((s.st_mode & S_IFSOCK) != S_IFSOCK)
+ return FALSE;
+
+ return TRUE;
}
static gboolean server_cb (GIOChannel *source,
- GIOCondition condition, gpointer data);
+ GIOCondition condition, gpointer data);
static gboolean
setup_connection (BaconMessageConnection *conn)
{
- g_return_val_if_fail (conn->chan == NULL, FALSE);
+ 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);
+ 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;
+ return TRUE;
}
static void
accept_new_connection (BaconMessageConnection *server_conn)
{
- BaconMessageConnection *conn;
- int alen;
+ BaconMessageConnection *conn;
+ int alen;
- g_return_if_fail (server_conn->is_server);
+ 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 = 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);
+ conn->fd = accept (server_conn->fd, NULL, (guint *)&alen);
- server_conn->accepted_connections =
- g_slist_prepend (server_conn->accepted_connections, conn);
+ server_conn->accepted_connections =
+ g_slist_prepend (server_conn->accepted_connections, conn);
- setup_connection (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;
+ 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;
+ 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_tmp_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;
+ char *pattern, *newfile, *path, *filename;
+ const char *tmpdir;
+
+ pattern = g_strdup_printf ("%s.%s.*", prefix, g_get_user_name ());
+ tmpdir = g_get_tmp_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;
+ 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);
+ 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;
+ 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);
+ 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)
+ BaconMessageReceivedFunc func,
+ gpointer user_data)
{
- g_return_if_fail (conn != NULL);
+ g_return_if_fail (conn != NULL);
- conn->func = func;
- conn->data = user_data;
+ conn->func = func;
+ conn->data = user_data;
}
void
bacon_message_connection_send (BaconMessageConnection *conn,
- const char *message)
+ const char *message)
{
- g_return_if_fail (conn != NULL);
- g_return_if_fail (message != NULL);
+ 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);
+ 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);
+ g_return_val_if_fail (conn != NULL, FALSE);
- return conn->is_server;
+ return conn->is_server;
}