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/* $XConsortium: remote.c,v 1.15 95/01/03 17:26:52 mor Exp $ */
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/******************************************************************************
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Copyright (c) 1993, 1999 X Consortium
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the X Consortium shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the X Consortium.
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******************************************************************************/
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* We use the rstart protocol to restart clients on remote machines.
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#include <X11/ICE/ICElib.h>
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#include <X11/ICE/ICEutil.h>
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static char *format_rstart_env (char *);
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static void close_child (GPid pid, gint status, gpointer ignore);
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close_child (GPid pid, gint status, gpointer ignore)
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g_spawn_close_pid (pid);
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remote_start (char *restart_info, char **argv,
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char *cwd, char **envp,
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GPid *child_pid, GError **error)
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return gsm_exec_async (cwd, argv, envp, child_pid, error);
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if (strncmp (restart_info, RSTART_RSH, sizeof (RSTART_RSH))
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|| restart_info[sizeof (RSTART_RSH)] != '/')
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return gsm_exec_async (cwd, argv, envp, child_pid, error);
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machine = restart_info + sizeof (RSTART_RSH) + 1;
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return gsm_exec_async (cwd, argv, envp, child_pid, error);
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g_message ("Attempting to restart remote client on %s\n",
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rargv[0] = RSH_COMMAND;
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/* TODO: we would like to report whether rstartd failed to a log
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window in the parent. We could do this by checking all the
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fprintf()s for error return. */
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if (! g_spawn_async_with_pipes (NULL, rargv, NULL,
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G_SPAWN_DO_NOT_REAP_CHILD,
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NULL, NULL, child_pid,
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&pipefd, NULL, NULL, error))
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g_child_watch_add (*child_pid, close_child, NULL);
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fp = (FILE *) fdopen (pipefd, "w");
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fprintf (fp, "CONTEXT X\n");
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fprintf (fp, "DIR %s\n", cwd);
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fprintf (fp, "DETACH\n");
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* The application saved its environment.
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for (i = 0; envp[i]; i++)
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* rstart requires that any spaces, backslashes, or
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* non-printable characters inside of a string be
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* represented by octal escape sequences.
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char *temp = format_rstart_env (envp[i]);
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fprintf (fp, "MISC X %s\n", temp);
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* The application did not save its environment.
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* The default PATH set up by rstart may not contain
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* the program we want to restart. We play it safe
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* and pass xsm's PATH. This will most likely contain
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const char *path = g_getenv ("PATH");
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fprintf (fp, "MISC X PATH=%s\n", path);
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/* FIXME: implement */
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fprintf (fp, "MISC X %s\n", non_local_display_env);
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fprintf (fp, "MISC X %s\n", non_local_session_env);
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* Pass the authentication data.
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* Each transport has auth data for ICE and XSMP.
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* Don't pass local auth data.
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for (list = auth_entries; list != NULL; list = list->next)
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IceAuthFileEntry *entry = (IceAuthFileEntry *) list->data;
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if (strstr (entry->network_id, "local/"))
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fprintf (fp, "AUTH ICE %s \"\" %s %s ",
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entry->protocol_name,
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for (i = 0; i < entry->auth_data_length; ++i)
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fprintf (fp, "%02x", entry->auth_data[i]);
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* And execute the program
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fprintf (fp, "EXEC %s %s", argv[0], argv[0]);
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for (i = 1; argv[i]; i++)
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fprintf (fp, " %s", argv[i]);
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fprintf (fp, "\n\n");
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* rstart requires that any spaces/backslashes/non-printable characters
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* inside of a string be represented by octal escape sequences.
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format_rstart_env (char *str)
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int escape_count = 0, i;
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unsigned char *temp = (unsigned char *) str;
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while (*temp != '\0')
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if (!isgraph (*temp) || *temp == '\\')
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if (escape_count == 0)
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int len = strlen (str) + 1 + (escape_count * 3);
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char *ret = (char *) g_malloc (len);
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temp = (unsigned char *) str;
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while (*temp != '\0')
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if (!isgraph (*temp) || *temp == '\\')
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g_snprintf (octal, sizeof (octal), "%o", *temp);
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for (i = 0; i < (3 - (int) strlen (octal)); i++)
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ptr += strlen (octal);
added
removed
gnome-session/remote.c
