GdkAtom compound_text_atom, utf8_string_atom;
+extern char **pty_argv; /* declared in pty.c */
+extern int use_pty_argv;
+
struct gui_data {
GtkWidget *window, *area, *sbar;
GtkBox *hbox;
GtkAdjustment *sbar_adjust;
GtkWidget *menu, *specialsmenu, *specialsitem1, *specialsitem2;
+ GtkWidget *sessionsmenu;
GdkPixmap *pixmap;
GdkFont *fonts[4]; /* normal, bold, wide, widebold */
struct {
struct unicode_data ucsdata;
Config cfg;
void *eventlogstuff;
+ char *progname, **gtkargvstart;
+ int ngtkargs;
};
struct draw_ctx {
struct gui_data *inst, Config *cfg)
{
int err = 0;
- extern char **pty_argv; /* declared in pty.c */
- extern int use_pty_argv;
+ char *val;
/*
* Macros to make argument handling easier. Note that because
}
#define SECOND_PASS_ONLY { if (!do_everything) continue; }
- char *val;
while (--argc > 0) {
char *p = *++argv;
int ret;
sfree(title);
}
+void fork_and_exec_self(struct gui_data *inst, int fd_to_close, ...)
+{
+ /*
+ * Re-execing ourself is not an exact science under Unix. I do
+ * the best I can by using /proc/self/exe if available and by
+ * assuming argv[0] can be found on $PATH if not.
+ *
+ * Note that we also have to reconstruct the elements of the
+ * original argv which gtk swallowed, since the user wants the
+ * new session to appear on the same X display as the old one.
+ */
+ char **args;
+ va_list ap;
+ int i, n;
+ int pid;
+
+ /*
+ * Collect the arguments with which to re-exec ourself.
+ */
+ va_start(ap, fd_to_close);
+ n = 2; /* progname and terminating NULL */
+ n += inst->ngtkargs;
+ while (va_arg(ap, char *) != NULL)
+ n++;
+ va_end(ap);
+
+ args = snewn(n, char *);
+ args[0] = inst->progname;
+ args[n-1] = NULL;
+ for (i = 0; i < inst->ngtkargs; i++)
+ args[i+1] = inst->gtkargvstart[i];
+
+ i++;
+ va_start(ap, fd_to_close);
+ while ((args[i++] = va_arg(ap, char *)) != NULL);
+ va_end(ap);
+
+ assert(i == n);
+
+ /*
+ * Do the double fork.
+ */
+ pid = fork();
+ if (pid < 0) {
+ perror("fork");
+ return;
+ }
+
+ if (pid == 0) {
+ int pid2 = fork();
+ if (pid2 < 0) {
+ perror("fork");
+ _exit(1);
+ } else if (pid2 > 0) {
+ /*
+ * First child has successfully forked second child. My
+ * Work Here Is Done. Note the use of _exit rather than
+ * exit: the latter appears to cause destroy messages
+ * to be sent to the X server. I suspect gtk uses
+ * atexit.
+ */
+ _exit(0);
+ }
+
+ /*
+ * If we reach here, we are the second child, so we now
+ * actually perform the exec.
+ */
+ if (fd_to_close >= 0)
+ close(fd_to_close);
+
+ execv("/proc/self/exe", args);
+ execvp(inst->progname, args);
+ perror("exec");
+ _exit(127);
+
+ } else {
+ int status;
+ waitpid(pid, &status, 0);
+ }
+
+}
+
+void dup_session_menuitem(GtkMenuItem *item, gpointer gdata)
+{
+ struct gui_data *inst = (struct gui_data *)gdata;
+ /*
+ * For this feature we must marshal cfg and (possibly) pty_argv
+ * into a byte stream, create a pipe, and send this byte stream
+ * to the child through the pipe.
+ */
+ int i, ret, size;
+ char *data;
+ char option[80];
+ int pipefd[2];
+
+ if (pipe(pipefd) < 0) {
+ perror("pipe");
+ return;
+ }
+
+ size = sizeof(inst->cfg);
+ if (use_pty_argv && pty_argv) {
+ for (i = 0; pty_argv[i]; i++)
+ size += strlen(pty_argv[i]) + 1;
+ }
+
+ data = snewn(size, char);
+ memcpy(data, &inst->cfg, sizeof(inst->cfg));
+ if (use_pty_argv && pty_argv) {
+ int p = sizeof(inst->cfg);
+ for (i = 0; pty_argv[i]; i++) {
+ strcpy(data + p, pty_argv[i]);
+ p += strlen(pty_argv[i]) + 1;
+ }
+ assert(p == size);
+ }
+
+ sprintf(option, "---[%d,%d]", pipefd[0], size);
+ fcntl(pipefd[0], F_SETFD, 0);
+ fork_and_exec_self(inst, pipefd[1], option, NULL);
+ close(pipefd[0]);
+
+ i = 0;
+ while (i < size && (ret = write(pipefd[1], data + i, size - i)) > 0)
+ i += ret;
+ if (ret < 0)
+ perror("write to pipe");
+ close(pipefd[1]);
+ sfree(data);
+}
+
+int read_dupsession_data(struct gui_data *inst, Config *cfg, char *arg)
+{
+ int fd, i, ret, size;
+ char *data;
+
+ if (sscanf(arg, "---[%d,%d]", &fd, &size) != 2) {
+ fprintf(stderr, "%s: malformed magic argument `%s'\n", appname, arg);
+ exit(1);
+ }
+
+ data = snewn(size, char);
+ i = 0;
+ while (i < size && (ret = read(fd, data + i, size - i)) > 0)
+ i += ret;
+ if (ret < 0) {
+ perror("read from pipe");
+ exit(1);
+ } else if (i < size) {
+ fprintf(stderr, "%s: unexpected EOF in Duplicate Session data\n",
+ appname);
+ exit(1);
+ }
+
+ memcpy(cfg, data, sizeof(Config));
+ if (use_pty_argv && size > sizeof(Config)) {
+ int n = 0;
+ i = sizeof(Config);
+ while (i < size) {
+ while (i < size && data[i]) i++;
+ if (i >= size) {
+ fprintf(stderr, "%s: malformed Duplicate Session data\n",
+ appname);
+ exit(1);
+ }
+ i++;
+ n++;
+ }
+ pty_argv = snewn(n+1, char *);
+ pty_argv[n] = NULL;
+ n = 0;
+ i = sizeof(Config);
+ while (i < size) {
+ char *p = data + i;
+ while (i < size && data[i]) i++;
+ assert(i < size);
+ i++;
+ pty_argv[n++] = dupstr(p);
+ }
+ }
+
+ return 0;
+}
+
+void new_session_menuitem(GtkMenuItem *item, gpointer data)
+{
+ struct gui_data *inst = (struct gui_data *)data;
+
+ fork_and_exec_self(inst, -1, NULL);
+}
+
+void saved_session_menuitem(GtkMenuItem *item, gpointer data)
+{
+ struct gui_data *inst = (struct gui_data *)data;
+ char *str = (char *)gtk_object_get_data(GTK_OBJECT(item), "user-data");
+
+ fork_and_exec_self(inst, -1, "-load", str, NULL);
+}
+
+void saved_session_freedata(GtkMenuItem *item, gpointer data)
+{
+ char *str = (char *)gtk_object_get_data(GTK_OBJECT(item), "user-data");
+
+ sfree(str);
+}
+
void update_specials_menu(void *frontend)
{
struct gui_data *inst = (struct gui_data *)frontend;
extern int cfgbox(Config *cfg);
struct gui_data *inst;
+ /*
+ * Create an instance structure and initialise to zeroes
+ */
+ inst = snew(struct gui_data);
+ memset(inst, 0, sizeof(*inst));
+ inst->alt_keycode = -1; /* this one needs _not_ to be zero */
+
/* defer any child exit handling until we're ready to deal with
* it */
block_signal(SIGCHLD, 1);
- gtk_init(&argc, &argv);
+ /*
+ * SIGPIPE is not something we want to see terminating the
+ * process.
+ */
+ block_signal(SIGPIPE, 1);
+ inst->progname = argv[0];
/*
- * Create an instance structure and initialise to zeroes
+ * Copy the original argv before letting gtk_init fiddle with
+ * it. It will be required later.
*/
- inst = snew(struct gui_data);
- memset(inst, 0, sizeof(*inst));
- inst->alt_keycode = -1; /* this one needs _not_ to be zero */
+ {
+ int i, oldargc;
+ inst->gtkargvstart = snewn(argc-1, char *);
+ for (i = 1; i < argc; i++)
+ inst->gtkargvstart[i-1] = dupstr(argv[i]);
+ oldargc = argc;
+ gtk_init(&argc, &argv);
+ inst->ngtkargs = oldargc - argc;
+ }
- if (do_cmdline(argc, argv, 0, inst, &inst->cfg))
- exit(1); /* pre-defaults pass to get -class */
- do_defaults(NULL, &inst->cfg);
- if (do_cmdline(argc, argv, 1, inst, &inst->cfg))
- exit(1); /* post-defaults, do everything */
+ if (argc > 1 && !strncmp(argv[1], "---", 3)) {
+ read_dupsession_data(inst, &inst->cfg, argv[1]);
+ /* Splatter this argument so it doesn't clutter a ps listing */
+ memset(argv[1], 0, strlen(argv[1]));
+ } else {
+ if (do_cmdline(argc, argv, 0, inst, &inst->cfg))
+ exit(1); /* pre-defaults pass to get -class */
+ do_defaults(NULL, &inst->cfg);
+ if (do_cmdline(argc, argv, 1, inst, &inst->cfg))
+ exit(1); /* post-defaults, do everything */
- cmdline_run_saved(&inst->cfg);
+ cmdline_run_saved(&inst->cfg);
- if (!*inst->cfg.host && !cfgbox(&inst->cfg))
- exit(0); /* config box hit Cancel */
+ if (!*inst->cfg.host && !cfgbox(&inst->cfg))
+ exit(0); /* config box hit Cancel */
+ }
if (!compound_text_atom)
compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
{
GtkWidget *menuitem;
char *s;
- extern const int use_event_log;
+ extern const int use_event_log, new_session, saved_sessions;
inst->menu = gtk_menu_new();
gtk_signal_connect(GTK_OBJECT(menuitem), "activate", \
GTK_SIGNAL_FUNC(func), inst); \
} while (0)
+ if (new_session)
+ MKMENUITEM("New Session", new_session_menuitem);
+ MKMENUITEM("Duplicate Session", dup_session_menuitem);
+ if (saved_sessions) {
+ struct sesslist sesslist;
+ int i;
+
+ inst->sessionsmenu = gtk_menu_new();
+
+ get_sesslist(&sesslist, TRUE);
+ for (i = 1; i < sesslist.nsessions; i++) {
+ menuitem = gtk_menu_item_new_with_label(sesslist.sessions[i]);
+ gtk_container_add(GTK_CONTAINER(inst->sessionsmenu), menuitem);
+ gtk_widget_show(menuitem);
+ gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
+ dupstr(sesslist.sessions[i]));
+ gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
+ GTK_SIGNAL_FUNC(saved_session_menuitem),
+ inst);
+ gtk_signal_connect(GTK_OBJECT(menuitem), "destroy",
+ GTK_SIGNAL_FUNC(saved_session_freedata),
+ inst);
+ }
+ get_sesslist(&sesslist, FALSE);
+
+ MKMENUITEM("Saved Sessions", NULL);
+ gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem),
+ inst->sessionsmenu);
+ }
+ MKMENUITEM(NULL, NULL);
MKMENUITEM("Change Settings", change_settings_menuitem);
MKMENUITEM(NULL, NULL);
if (use_event_log)
*
* - Go through all the config options and ensure they can all be
* configured and reconfigured properly.
- *
- * - Remainder of the context menu:
- *
- * - New Session, Duplicate Session and the Saved Sessions
- * submenu.
- * + at least New and Duplicate probably _should_ be in
- * pterm.
- * + Duplicate Session will be fun, since we must work out
- * how to pass the config data through.
- * + In fact this should be easier on Unix, since fork() is
- * available so we need not even exec (this also saves us
- * the trouble of scrabbling around trying to find our own
- * binary). Possible scenario: respond to Duplicate
- * Session by forking. Parent continues as before; child
- * unceremoniously frees all extant resources (backend,
- * terminal, ldisc, frontend etc) and then _longjmps_ (I
- * kid you not) back to a point in pt_main() which causes
- * it to go back round to the point of opening a new
- * terminal window and a new backend.
- * + A tricky bit here is how to free everything without
- * also _destroying_ things - calling GTK to free up
- * existing widgets is liable to send destroy messages to
- * the X server, which won't go down too well with the
- * parent process. exec() is a much cleaner solution to
- * this bit, but requires us to invent some ghastly IPC as
- * we did in Windows PuTTY.
- * + Arrgh! Also, this won't work in pterm since we'll
- * already have dropped privileges by this point, so we
- * can't get another pty. Sigh. Looks like exec has to be
- * the way forward then :-/
+ * + icon title appears to be a non-option on Unix.
+ * + Why the hell did I faff about disabling two of the vtmode
+ * options? The rest aren't used either in pterm! Work out
+ * whether they should be, and how they can be.
+ * + Refresh in the codepage combo is badly broken.
+ * + `Don't translate line drawing chars' ?? What is this crap?
+ * It does nothing at all, and where's the option to paste as
+ * lqqqk? What was I smoking?
+ *
+ * - Better control of the individual config box features.
+ * + SSH packet logging shouldn't be mentioned in pterm, and in
+ * fact not PuTTYtel either.
+ * + Keepalives, and the Connection panel in general, shouldn't
+ * crop up in pterm. (And perhaps also not mid-session in
+ * rlogin and raw?)
*/
/*
static int got_host = 0;
-const int use_event_log = 1;
+const int use_event_log = 1, new_session = 1, saved_sessions = 1;
int process_nonoption_arg(char *arg, Config *cfg)
{
~mdw / sgt / putty / commitdiff