src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto & The Sylpheed Claws Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #ifdef GDK_WINDOWING_X11
  30 #       include <gdk/gdkx.h>
  31 #endif /* GDK_WINDOWING_X11 */
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <errno.h>
  36 #include <sys/types.h>
  37 #include <sys/wait.h>
  38 #include <signal.h>
  39 #include <unistd.h>
  40
  41 #include "intl.h"
  42 #include "utils.h"
  43 #include "gtkutils.h"
  44 #include "manage_window.h"
  45 #include "mainwindow.h"
  46 #include "prefs_common.h"
  47 #include "alertpanel.h"
  48 #include "inputdialog.h"
  49 #include "action.h"
  50 #include "compose.h"
  51 #include "procmsg.h"
  52 #include "textview.h"
  53 #include "matcher_parser.h" /* CLAWS */
  54 #include "filtering.h"
  55
  56 typedef struct _Children                Children;
  57 typedef struct _ChildInfo               ChildInfo;
  58 typedef struct _UserStringDialog        UserStringDialog;
  59
  60 struct _Children
  61 {
  62         GtkWidget       *dialog;
  63         GtkWidget       *text;
  64         GtkWidget       *input_entry;
  65         GtkWidget       *input_hbox;
  66         GtkWidget       *progress_bar;
  67         GtkWidget       *abort_btn;
  68         GtkWidget       *close_btn;
  69         GtkWidget       *scrolledwin;
  70
  71         gchar           *action;
  72         ActionType       action_type;
  73         GSList          *list;
  74         gint             nb;
  75         gint             initial_nb;
  76         gint             open_in;
  77         gboolean         output;
  78
  79         GtkWidget       *msg_text;
  80
  81         gboolean         is_selection;
  82 };
  83
  84 struct _ChildInfo
  85 {
  86         Children        *children;
  87         gchar           *cmd;
  88         pid_t            pid;
  89         gint             chld_in;
  90         gint             chld_out;
  91         gint             chld_err;
  92         gint             chld_status;
  93         gint             tag_in;
  94         gint             tag_out;
  95         gint             tag_err;
  96         gint             tag_status;
  97         gint             new_out;
  98
  99         GString         *output;
 100 };
 101
 102 static void action_update_menu          (GtkItemFactory *ifactory,
 103                                          gchar          *branch_path,
 104                                          gpointer        callback,
 105                                          gpointer        data);
 106 static void compose_actions_execute_cb  (Compose        *compose,
 107                                          guint           action_nb,
 108                                          GtkWidget      *widget);
 109 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 110                                          guint           action_nb,
 111                                          GtkWidget      *widget);
 112 static void msgview_actions_execute_cb  (MessageView    *msgview,
 113                                          guint           action_nb,
 114                                          GtkWidget      *widget);
 115 static void message_actions_execute     (MessageView    *msgview,
 116                                          guint           action_nb,
 117                                          GSList         *msg_list);
 118
 119 static gboolean execute_filtering_actions(gchar         *action,
 120                                           GSList        *msglist);
 121
 122 static gboolean execute_actions         (gchar          *action,
 123                                          GSList         *msg_list,
 124                                          GtkWidget      *text,
 125                                          gint            body_pos,
 126                                          MimeInfo       *partinfo);
 127
 128 static gchar *parse_action_cmd          (gchar          *action,
 129                                          MsgInfo        *msginfo,
 130                                          GSList         *msg_list,
 131                                          MimeInfo       *partinfo,
 132                                          const gchar    *user_str,
 133                                          const gchar    *user_hidden_str,
 134                                          const gchar    *sel_str);
 135 static gboolean parse_append_filename   (GString        *cmd,
 136                                          MsgInfo        *msginfo);
 137
 138 static gboolean parse_append_msgpart    (GString        *cmd,
 139                                          MsgInfo        *msginfo,
 140                                          MimeInfo       *partinfo);
 141
 142 static ChildInfo *fork_child            (gchar          *cmd,
 143                                          const gchar    *msg_str,
 144                                          Children       *children);
 145
 146 static gint wait_for_children           (Children       *children);
 147
 148 static void free_children               (Children       *children);
 149
 150 static void childinfo_close_pipes       (ChildInfo      *child_info);
 151
 152 static void create_io_dialog            (Children       *children);
 153 static void update_io_dialog            (Children       *children);
 154
 155 static void hide_io_dialog_cb           (GtkWidget      *widget,
 156                                          gpointer        data);
 157 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 158                                          GdkEventKey    *event,
 159                                          gpointer        data);
 160
 161 static void catch_output                (gpointer                data,
 162                                          gint                    source,
 163                                          GdkInputCondition       cond);
 164 static void catch_input                 (gpointer                data,
 165                                          gint                    source,
 166                                          GdkInputCondition       cond);
 167 static void catch_status                (gpointer                data,
 168                                          gint                    source,
 169                                          GdkInputCondition       cond);
 170
 171 static gchar *get_user_string           (const gchar    *action,
 172                                          ActionType      type);
 173
 174
 175 ActionType action_get_type(const gchar *action_str)
 176 {
 177         const gchar *p;
 178         ActionType action_type = ACTION_NONE;
 179
 180         g_return_val_if_fail(action_str,  ACTION_ERROR);
 181         g_return_val_if_fail(*action_str, ACTION_ERROR);
 182
 183         p = action_str;
 184
 185         if (p[0] == '|') {
 186                 action_type |= ACTION_PIPE_IN;
 187                 p++;
 188         } else if (p[0] == '>') {
 189                 action_type |= ACTION_USER_IN;
 190                 p++;
 191         } else if (p[0] == '*') {
 192                 action_type |= ACTION_USER_HIDDEN_IN;
 193                 p++;
 194         }
 195
 196         if (p[0] == '\0')
 197                 return ACTION_ERROR;
 198
 199         while (*p && action_type != ACTION_ERROR) {
 200                 if (p[0] == '%' && p[1]) {
 201                         switch (p[1]) {
 202                         case 'a':
 203                                 /* CLAWS: filtering action is a mutually exclusive
 204                                  * action. we can enable others if needed later. we
 205                                  * add ACTION_SINGLE | ACTION_MULTIPLE so it will
 206                                  * only be executed from the main window toolbar */
 207                                 if (p[2] == 's')  /* source messages */
 208                                         action_type = ACTION_FILTERING_ACTION
 209                                                     | ACTION_SINGLE
 210                                                     | ACTION_MULTIPLE;
 211                                 break;
 212                         case 'f':
 213                                 action_type |= ACTION_SINGLE;
 214                                 break;
 215                         case 'F':
 216                                 action_type |= ACTION_MULTIPLE;
 217                                 break;
 218                         case 'p':
 219                                 action_type |= ACTION_SINGLE;
 220                                 break;
 221                         case 's':
 222                                 action_type |= ACTION_SELECTION_STR;
 223                                 break;
 224                         case 'u':
 225                                 action_type |= ACTION_USER_STR;
 226                                 break;
 227                         case 'h':
 228                                 action_type |= ACTION_USER_HIDDEN_STR;
 229                                 break;
 230                         default:
 231                                 action_type = ACTION_ERROR;
 232                                 break;
 233                         }
 234                 } else if (p[0] == '|') {
 235                         if (p[1] == '\0')
 236                                 action_type |= ACTION_PIPE_OUT;
 237                 } else if (p[0] == '>') {
 238                         if (p[1] == '\0')
 239                                 action_type |= ACTION_INSERT;
 240                 } else if (p[0] == '&') {
 241                         if (p[1] == '\0')
 242                                 action_type |= ACTION_ASYNC;
 243                 }
 244                 p++;
 245         }
 246
 247         return action_type;
 248 }
 249
 250 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 251                                GSList *msg_list, MimeInfo *partinfo,
 252                                const gchar *user_str,
 253                                const gchar *user_hidden_str,
 254                                const gchar *sel_str)
 255 {
 256         GString *cmd;
 257         gchar *p;
 258         GSList *cur;
 259
 260         p = action;
 261
 262         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 263                 p++;
 264
 265         cmd = g_string_sized_new(strlen(action));
 266
 267         while (p[0] &&
 268                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 269                 if (p[0] == '%' && p[1]) {
 270                         switch (p[1]) {
 271                         case 'f':
 272                                 if (!parse_append_filename(cmd, msginfo)) {
 273                                         g_string_free(cmd, TRUE);
 274                                         return NULL;
 275                                 }
 276                                 p++;
 277                                 break;
 278                         case 'F':
 279                                 for (cur = msg_list; cur != NULL;
 280                                      cur = cur->next) {
 281                                         MsgInfo *msg = (MsgInfo *)cur->data;
 282
 283                                         if (!parse_append_filename(cmd, msg)) {
 284                                                 g_string_free(cmd, TRUE);
 285                                                 return NULL;
 286                                         }
 287                                         if (cur->next)
 288                                                 g_string_append_c(cmd, ' ');
 289                                 }
 290                                 p++;
 291                                 break;
 292                         case 'p':
 293                                 if (!parse_append_msgpart(cmd, msginfo,
 294                                                           partinfo)) {
 295                                         g_string_free(cmd, TRUE);
 296                                         return NULL;
 297                                 }
 298                                 p++;
 299                                 break;
 300                         case 's':
 301                                 if (sel_str)
 302                                         g_string_append(cmd, sel_str);
 303                                 p++;
 304                                 break;
 305                         case 'u':
 306                                 if (user_str)
 307                                         g_string_append(cmd, user_str);
 308                                 p++;
 309                                 break;
 310                         case 'h':
 311                                 if (user_hidden_str)
 312                                         g_string_append(cmd, user_hidden_str);
 313                                 p++;
 314                                 break;
 315                         default:
 316                                 g_string_append_c(cmd, p[0]);
 317                                 g_string_append_c(cmd, p[1]);
 318                                 p++;
 319                         }
 320                 } else {
 321                         g_string_append_c(cmd, p[0]);
 322                 }
 323                 p++;
 324         }
 325         if (cmd->len == 0) {
 326                 g_string_free(cmd, TRUE);
 327                 return NULL;
 328         }
 329
 330         p = cmd->str;
 331         g_string_free(cmd, FALSE);
 332         return p;
 333 }
 334
 335 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 336 {
 337         gchar *filename;
 338
 339         g_return_val_if_fail(msginfo, FALSE);
 340
 341         filename = procmsg_get_message_file(msginfo);
 342
 343         if (filename) {
 344                 g_string_append(cmd, filename);
 345                 g_free(filename);
 346         } else {
 347                 alertpanel_error(_("Could not get message file %d"),
 348                                  msginfo->msgnum);
 349                 return FALSE;
 350         }
 351
 352         return TRUE;
 353 }
 354
 355 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 356                                      MimeInfo *partinfo)
 357 {
 358         gboolean single_part = FALSE;
 359         gchar *filename;
 360         gchar *part_filename;
 361         gint ret;
 362
 363         if (!partinfo) {
 364                 partinfo = procmime_scan_message(msginfo);
 365                 if (!partinfo) {
 366                         alertpanel_error(_("Could not get message part."));
 367                         return FALSE;
 368                 }
 369
 370                 single_part = TRUE;
 371         }
 372
 373         filename = procmsg_get_message_file_path(msginfo);
 374         part_filename = procmime_get_tmp_file_name(partinfo);
 375
 376         ret = procmime_get_part(part_filename, partinfo);
 377
 378         if (single_part)
 379                 procmime_mimeinfo_free_all(partinfo);
 380         g_free(filename);
 381
 382         if (ret < 0) {
 383                 alertpanel_error(_("Can't get part of multipart message"));
 384                 g_free(part_filename);
 385                 return FALSE;
 386         }
 387
 388         g_string_append(cmd, part_filename);
 389
 390         g_free(part_filename);
 391
 392         return TRUE;
 393 }
 394
 395 void actions_execute(gpointer data,
 396                      guint action_nb,
 397                      GtkWidget *widget,
 398                      gint source)
 399 {
 400         if (source == TOOLBAR_MAIN)
 401                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 402         else if (source == TOOLBAR_COMPOSE)
 403                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 404         else if (source == TOOLBAR_MSGVIEW)
 405                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 406 }
 407
 408 void action_update_mainwin_menu(GtkItemFactory *ifactory, MainWindow *mainwin)
 409 {
 410         action_update_menu(ifactory, "/Tools/Actions",
 411                            mainwin_actions_execute_cb, mainwin);
 412 }
 413
 414 void action_update_msgview_menu(GtkItemFactory *ifactory, MessageView *msgview)
 415 {
 416         action_update_menu(ifactory, "/Tools/Actions",
 417                            msgview_actions_execute_cb, msgview);
 418 }
 419
 420 void action_update_compose_menu(GtkItemFactory *ifactory, Compose *compose)
 421 {
 422         action_update_menu(ifactory, "/Tools/Actions",
 423                            compose_actions_execute_cb, compose);
 424 }
 425
 426 static void action_update_menu(GtkItemFactory *ifactory, gchar *branch_path,
 427                                gpointer callback, gpointer data)
 428 {
 429         GtkWidget *menuitem;
 430         gchar *menu_path;
 431         GSList *cur;
 432         gchar *action, *action_p;
 433         GList *amenu;
 434         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 435
 436         ifentry.path = branch_path;
 437         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 438         g_return_if_fail(menuitem != NULL);
 439
 440         amenu = GTK_MENU_SHELL(menuitem)->children;
 441         while (amenu != NULL) {
 442                 GList *alist = amenu->next;
 443                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 444                 amenu = alist;
 445         }
 446
 447         ifentry.accelerator     = NULL;
 448         ifentry.callback_action = 0;
 449         ifentry.callback        = callback;
 450         ifentry.item_type       = NULL;
 451
 452         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 453                 action   = g_strdup((gchar *)cur->data);
 454                 action_p = strstr(action, ": ");
 455                 if (action_p && action_p[2] &&
 456                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 457                         action_p[0] = 0x00;
 458                         menu_path = g_strdup_printf("%s/%s", branch_path,
 459                                                     action);
 460                         ifentry.path = menu_path;
 461                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 462                                                      1);
 463                         g_free(menu_path);
 464                 }
 465                 g_free(action);
 466                 ifentry.callback_action++;
 467         }
 468 }
 469
 470 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 471                                        GtkWidget *widget)
 472 {
 473         gchar *buf, *action;
 474         ActionType action_type;
 475
 476         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 477
 478         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 479         g_return_if_fail(buf != NULL);
 480         action = strstr(buf, ": ");
 481         g_return_if_fail(action != NULL);
 482
 483         /* Point to the beginning of the command-line */
 484         action += 2;
 485
 486         action_type = action_get_type(action);
 487         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 488                 alertpanel_warning
 489                         (_("The selected action cannot be used in the compose window\n"
 490                            "because it contains %%f, %%F, %%as or %%p."));
 491                 return;
 492         }
 493
 494         execute_actions(action, NULL, compose->text, 0, NULL);
 495 }
 496
 497 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 498                                        GtkWidget *widget)
 499 {
 500         GSList *msg_list;
 501
 502         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 503         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 504         g_slist_free(msg_list);
 505 }
 506
 507 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 508                                        GtkWidget *widget)
 509 {
 510         GSList *msg_list = NULL;
 511
 512         if (msgview->msginfo)
 513                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 514         message_actions_execute(msgview, action_nb, msg_list);
 515         g_slist_free(msg_list);
 516 }
 517
 518 static void message_actions_execute(MessageView *msgview, guint action_nb,
 519                                     GSList *msg_list)
 520 {
 521         TextView *textview;
 522         MimeInfo *partinfo;
 523         gchar *buf;
 524         gchar *action;
 525         GtkWidget *text = NULL;
 526         guint body_pos = 0;
 527         ActionType action_type;
 528
 529         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 530
 531         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 532
 533         g_return_if_fail(buf);
 534         g_return_if_fail((action = strstr(buf, ": ")));
 535
 536         /* Point to the beginning of the command-line */
 537         action += 2;
 538
 539         textview = messageview_get_current_textview(msgview);
 540         if (textview) {
 541                 text     = textview->text;
 542                 body_pos = textview->body_pos;
 543         }
 544         partinfo = messageview_get_selected_mime_part(msgview);
 545
 546         /* this command will alter the message text */
 547         action_type = action_get_type(action);
 548         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 549                 msgview->filtered = TRUE;
 550
 551         if (action_type & ACTION_FILTERING_ACTION)
 552                 /* CLAWS: most of the above code is not necessary for applying
 553                  * filtering */
 554                 execute_filtering_actions(action, msg_list);
 555         else
 556                 execute_actions(action, msg_list, text, body_pos, partinfo);
 557 }
 558
 559 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 560 {
 561         GSList *action_list, *p;
 562         const gchar *sbegin, *send;
 563         gchar *action_string;
 564
 565         if (NULL == (sbegin = strstr2(action, "%as{")))
 566                 return FALSE;
 567         sbegin += sizeof "%as{" - 1;
 568         if (NULL == (send = strrchr(sbegin, '}')))
 569                 return FALSE;
 570         action_string = g_strndup(sbegin, send - sbegin);
 571
 572         action_list = matcher_parser_get_action_list(action_string);
 573         g_free(action_string);
 574         if (action_list == NULL) return FALSE;
 575
 576         /* apply actions on each message info */
 577         for (p = msglist; p && p->data; p = g_slist_next(p))
 578                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 579
 580         for (p = action_list; p; p = g_slist_next(p))
 581                 if (p->data) filteringaction_free(p->data);
 582         g_slist_free(action_list);
 583         return TRUE;
 584 }
 585
 586 static gboolean execute_actions(gchar *action, GSList *msg_list,
 587                                 GtkWidget *text,
 588                                 gint body_pos, MimeInfo *partinfo)
 589 {
 590         GSList *children_list = NULL;
 591         gint is_ok  = TRUE;
 592         gint msg_list_len;
 593         Children *children;
 594         ChildInfo *child_info;
 595         ActionType action_type;
 596         MsgInfo *msginfo;
 597         gchar *cmd;
 598         gchar *sel_str = NULL;
 599         gchar *msg_str = NULL;
 600         gchar *user_str = NULL;
 601         gchar *user_hidden_str = NULL;
 602         GtkTextIter start_iter, end_iter;
 603         gboolean is_selection = FALSE;
 604
 605         g_return_val_if_fail(action && *action, FALSE);
 606
 607         action_type = action_get_type(action);
 608
 609         if (action_type == ACTION_ERROR)
 610                 return FALSE;         /* ERR: syntax error */
 611
 612         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 613                 return FALSE;         /* ERR: file command without selection */
 614
 615         msg_list_len = g_slist_length(msg_list);
 616
 617         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 618                 if (msg_list_len > 1)
 619                         return FALSE; /* ERR: pipe + multiple selection */
 620                 if (!text)
 621                         return FALSE; /* ERR: pipe and no displayed text */
 622         }
 623
 624         if (action_type & ACTION_SELECTION_STR) {
 625                 if (!text)
 626                         return FALSE; /* ERR: selection string but no text */
 627         }
 628
 629         if (text) {
 630                 GtkTextBuffer *textbuf;
 631
 632                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 633                 is_selection = gtk_text_buffer_get_selection_bounds(textbuf,
 634                                                                     &start_iter,
 635                                                                     &end_iter);
 636                 if (!is_selection) {
 637                         gtk_text_buffer_get_start_iter(textbuf, &start_iter);
 638                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 639                 }
 640                 msg_str = gtk_text_buffer_get_text(textbuf,
 641                                                    &start_iter, &end_iter,
 642                                                    FALSE);
 643                 if (is_selection)
 644                         sel_str = g_strdup (msg_str);
 645         }
 646
 647         if (action_type & ACTION_USER_STR) {
 648                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 649                         g_free(msg_str);
 650                         g_free(sel_str);
 651                         return FALSE;
 652                 }
 653         }
 654
 655         if (action_type & ACTION_USER_HIDDEN_STR) {
 656                 if (!(user_hidden_str =
 657                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 658                         g_free(msg_str);
 659                         g_free(sel_str);
 660                         g_free(user_str);
 661                         return FALSE;
 662                 }
 663         }
 664
 665         if (text && (action_type & ACTION_PIPE_OUT)) {
 666                 GtkTextBuffer *textbuf;
 667                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 668                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 669         }
 670
 671         children = g_new0(Children, 1);
 672
 673         children->action      = g_strdup(action);
 674         children->action_type = action_type;
 675         children->msg_text    = text;
 676         children->is_selection = is_selection;
 677
 678         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 679             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 680                 children->open_in = 1;
 681
 682         if (action_type & ACTION_SINGLE) {
 683                 GSList *cur;
 684
 685                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 686                         msginfo = (MsgInfo *)cur->data;
 687                         if (!msginfo) {
 688                                 is_ok  = FALSE; /* ERR: msginfo missing */
 689                                 break;
 690                         }
 691                         cmd = parse_action_cmd(action, msginfo, msg_list,
 692                                                partinfo, user_str,
 693                                                user_hidden_str, sel_str);
 694                         if (!cmd) {
 695                                 debug_print("Action command error\n");
 696                                 is_ok  = FALSE; /* ERR: incorrect command */
 697                                 break;
 698                         }
 699                         if ((child_info = fork_child(cmd, msg_str, children))) {
 700                                 children_list = g_slist_append(children_list,
 701                                                                child_info);
 702                         }
 703                         g_free(cmd);
 704                 }
 705         } else {
 706                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 707                                        user_str, user_hidden_str, sel_str);
 708                 if (cmd) {
 709                         if ((child_info = fork_child(cmd, msg_str, children))) {
 710                                 children_list = g_slist_append(children_list,
 711                                                                child_info);
 712                         }
 713                         g_free(cmd);
 714                 } else
 715                         is_ok  = FALSE;         /* ERR: incorrect command */
 716         }
 717
 718         g_free(msg_str);
 719         g_free(sel_str);
 720         g_free(user_str);
 721         g_free(user_hidden_str);
 722
 723         if (!children_list) {
 724                  /* If not waiting for children, return */
 725                 free_children(children);
 726         } else {
 727                 GSList *cur;
 728
 729                 children->list        = children_list;
 730                 children->nb          = g_slist_length(children_list);
 731                 children->initial_nb  = children->nb;
 732
 733                 for (cur = children_list; cur; cur = cur->next) {
 734                         child_info = (ChildInfo *) cur->data;
 735                         child_info->tag_status =
 736                                 gdk_input_add(child_info->chld_status,
 737                                               GDK_INPUT_READ,
 738                                               catch_status, child_info);
 739                 }
 740
 741                 create_io_dialog(children);
 742         }
 743
 744         return is_ok;
 745 }
 746
 747 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 748                              Children *children)
 749 {
 750         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 751         gchar *cmdline[4];
 752         pid_t pid, gch_pid;
 753         ChildInfo *child_info;
 754         gint sync;
 755
 756         sync = !(children->action_type & ACTION_ASYNC);
 757
 758         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 759                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 760
 761         if (sync) {
 762                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 763                     pipe(chld_err)) {
 764                         alertpanel_error(_("Command could not be started. "
 765                                            "Pipe creation failed.\n%s"),
 766                                         g_strerror(errno));
 767                         /* Closing fd = -1 fails silently */
 768                         close(chld_in[0]);
 769                         close(chld_in[1]);
 770                         close(chld_out[0]);
 771                         close(chld_out[1]);
 772                         close(chld_err[0]);
 773                         close(chld_err[1]);
 774                         close(chld_status[0]);
 775                         close(chld_status[1]);
 776                         return NULL; /* Pipe error */
 777                 }
 778         }
 779
 780         debug_print("Forking child and grandchild.\n");
 781
 782         pid = fork();
 783         if (pid == 0) { /* Child */
 784                 if (setpgid(0, 0))
 785                         perror("setpgid");
 786
 787 #ifdef GDK_WINDOWING_X11
 788                 close(ConnectionNumber(gdk_display));
 789 #endif /* GDK_WINDOWING_X11 */
 790
 791                 gch_pid = fork();
 792
 793                 if (gch_pid == 0) {
 794                         if (setpgid(0, getppid()))
 795                                 perror("setpgid");
 796
 797                         if (sync) {
 798                                 if (children->action_type &
 799                                     (ACTION_PIPE_IN |
 800                                      ACTION_USER_IN |
 801                                      ACTION_USER_HIDDEN_IN)) {
 802                                         close(fileno(stdin));
 803                                         dup  (chld_in[0]);
 804                                 }
 805                                 close(chld_in[0]);
 806                                 close(chld_in[1]);
 807
 808                                 close(fileno(stdout));
 809                                 dup  (chld_out[1]);
 810                                 close(chld_out[0]);
 811                                 close(chld_out[1]);
 812
 813                                 close(fileno(stderr));
 814                                 dup  (chld_err[1]);
 815                                 close(chld_err[0]);
 816                                 close(chld_err[1]);
 817                         }
 818
 819                         cmdline[0] = "sh";
 820                         cmdline[1] = "-c";
 821                         cmdline[2] = cmd;
 822                         cmdline[3] = 0;
 823                         execvp("/bin/sh", cmdline);
 824
 825                         perror("execvp");
 826                         _exit(1);
 827                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 828                         if (sync)
 829                                 write(chld_status[1], "1\n", 2);
 830                         perror("fork");
 831                         _exit(1);
 832                 } else { /* Child */
 833                         if (sync) {
 834                                 close(chld_in[0]);
 835                                 close(chld_in[1]);
 836                                 close(chld_out[0]);
 837                                 close(chld_out[1]);
 838                                 close(chld_err[0]);
 839                                 close(chld_err[1]);
 840                                 close(chld_status[0]);
 841
 842                                 debug_print("Child: Waiting for grandchild\n");
 843                                 waitpid(gch_pid, NULL, 0);
 844                                 debug_print("Child: grandchild ended\n");
 845                                 write(chld_status[1], "0\n", 2);
 846                                 close(chld_status[1]);
 847                         }
 848                         _exit(0);
 849                 }
 850         } else if (pid < 0) { /* Fork error */
 851                 alertpanel_error(_("Could not fork to execute the following "
 852                                    "command:\n%s\n%s"),
 853                                  cmd, g_strerror(errno));
 854                 return NULL;
 855         }
 856
 857         /* Parent */
 858
 859         if (!sync) {
 860                 waitpid(pid, NULL, 0);
 861                 return NULL;
 862         }
 863
 864         close(chld_in[0]);
 865         if (!(children->action_type &
 866               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 867                 close(chld_in[1]);
 868         close(chld_out[1]);
 869         close(chld_err[1]);
 870         close(chld_status[1]);
 871
 872         child_info = g_new0(ChildInfo, 1);
 873
 874         child_info->children    = children;
 875
 876         child_info->pid         = pid;
 877         child_info->cmd         = g_strdup(cmd);
 878         child_info->new_out     = FALSE;
 879         child_info->output      = g_string_new(NULL);
 880         child_info->chld_in     =
 881                 (children->action_type &
 882                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 883                         ? chld_in [1] : -1;
 884         child_info->chld_out    = chld_out[0];
 885         child_info->chld_err    = chld_err[0];
 886         child_info->chld_status = chld_status[0];
 887         child_info->tag_in      = -1;
 888         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 889                                                 catch_output, child_info);
 890         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 891                                                 catch_output, child_info);
 892
 893         if (!(children->action_type &
 894               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 895                 return child_info;
 896
 897         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 898                 write(chld_in[1], msg_str, strlen(msg_str));
 899                 if (!(children->action_type &
 900                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 901                         close(chld_in[1]);
 902                 child_info->chld_in = -1; /* No more input */
 903         }
 904
 905         return child_info;
 906 }
 907
 908 static void kill_children_cb(GtkWidget *widget, gpointer data)
 909 {
 910         GSList *cur;
 911         Children *children = (Children *) data;
 912         ChildInfo *child_info;
 913
 914         for (cur = children->list; cur; cur = cur->next) {
 915                 child_info = (ChildInfo *)(cur->data);
 916                 debug_print("Killing child group id %d\n", child_info->pid);
 917                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 918                         perror("kill");
 919         }
 920 }
 921
 922 static gint wait_for_children(Children *children)
 923 {
 924         gboolean new_output;
 925         ChildInfo *child_info;
 926         GSList *cur;
 927         gint nb = children->nb;
 928
 929         children->nb = 0;
 930
 931         cur = children->list;
 932         new_output = FALSE;
 933         while (cur) {
 934                 child_info = (ChildInfo *)cur->data;
 935                 if (child_info->pid)
 936                         children->nb++;
 937                 new_output |= child_info->new_out;
 938                 cur = cur->next;
 939         }
 940
 941         children->output |= new_output;
 942
 943         if (new_output || (children->dialog && (nb != children->nb)))
 944                 update_io_dialog(children);
 945
 946         if (children->nb)
 947                 return FALSE;
 948
 949         if (!children->dialog) {
 950                 free_children(children);
 951         } else if (!children->output) {
 952                 gtk_widget_destroy(children->dialog);
 953         }
 954
 955         return FALSE;
 956 }
 957
 958 static void send_input(GtkWidget *w, gpointer data)
 959 {
 960         Children *children = (Children *) data;
 961         ChildInfo *child_info = (ChildInfo *) children->list->data;
 962
 963         child_info->tag_in = gdk_input_add(child_info->chld_in,
 964                                            GDK_INPUT_WRITE,
 965                                            catch_input, children);
 966         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 967 }
 968
 969 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 970 {
 971         hide_io_dialog_cb(w, data);
 972         return TRUE;
 973 }
 974
 975 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 976 {
 977
 978         Children *children = (Children *)data;
 979
 980         if (!children->nb) {
 981                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 982                                               children);
 983                 gtk_widget_destroy(children->dialog);
 984                 free_children(children);
 985         }
 986 }
 987
 988 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 989                                      gpointer data)
 990 {
 991         if (event && event->keyval == GDK_Escape)
 992                 hide_io_dialog_cb(widget, data);
 993         return TRUE;
 994 }
 995
 996 static void childinfo_close_pipes(ChildInfo *child_info)
 997 {
 998         /* stdout and stderr pipes are guaranteed to be removed by
 999          * their handler, but in case where we receive child exit notification
1000          * before grand-child's pipes closing signals, we check them and close
1001          * them if necessary
1002          */
1003         if (child_info->tag_in > 0)
1004                 gdk_input_remove(child_info->tag_in);
1005         if (child_info->tag_out > 0)
1006                 gdk_input_remove(child_info->tag_out);
1007         if (child_info->tag_err > 0)
1008                 gdk_input_remove(child_info->tag_err);
1009
1010         if (child_info->chld_in >= 0)
1011                 close(child_info->chld_in);
1012         if (child_info->chld_out >= 0)
1013                 close(child_info->chld_out);
1014         if (child_info->chld_err >= 0)
1015                 close(child_info->chld_err);
1016
1017         close(child_info->chld_status);
1018 }
1019
1020 static void free_children(Children *children)
1021 {
1022         ChildInfo *child_info;
1023
1024         debug_print("Freeing children data %p\n", children);
1025
1026         g_free(children->action);
1027         while (children->list != NULL) {
1028                 child_info = (ChildInfo *)children->list->data;
1029                 g_free(child_info->cmd);
1030                 g_string_free(child_info->output, TRUE);
1031                 children->list = g_slist_remove(children->list, child_info);
1032                 g_free(child_info);
1033         }
1034         g_free(children);
1035 }
1036
1037 static void update_io_dialog(Children *children)
1038 {
1039         GSList *cur;
1040
1041         debug_print("Updating actions input/output dialog.\n");
1042
1043         if (children->progress_bar) {
1044                 gtk_progress_configure(GTK_PROGRESS(children->progress_bar),
1045                                 children->initial_nb -children->nb,
1046                                 0.0, children->initial_nb);
1047         }
1048
1049         if (!children->nb) {
1050                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1051                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1052                 if (children->input_hbox)
1053                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1054                 gtk_widget_grab_focus(children->close_btn);
1055                 g_signal_connect(G_OBJECT(children->dialog),
1056                                  "key_press_event",
1057                                  G_CALLBACK(io_dialog_key_pressed_cb),
1058                                  children);
1059         }
1060
1061         if (children->output) {
1062                 GtkWidget *text = children->text;
1063                 gchar *caption;
1064                 ChildInfo *child_info;
1065                 GtkTextBuffer *textbuf;
1066                 GtkTextIter iter, start_iter, end_iter;
1067                 GdkFont *font;
1068
1069                 font = gtk_object_get_data(GTK_OBJECT(children->dialog),
1070                                            "s_txtfont");
1071                 gtk_widget_show(children->scrolledwin);
1072                 textbuf = gtk_text_view_get_buffer (GTK_TEXT_VIEW(text));
1073                 gtk_text_buffer_get_start_iter (textbuf, &start_iter);
1074                 gtk_text_buffer_get_end_iter (textbuf, &end_iter);
1075                 iter = start_iter;
1076                 for (cur = children->list; cur; cur = cur->next) {
1077                         child_info = (ChildInfo *)cur->data;
1078                         if (child_info->pid)
1079                                 caption = g_strdup_printf
1080                                         (_("--- Running: %s\n"),
1081                                          child_info->cmd);
1082                         else
1083                                 caption = g_strdup_printf
1084                                         (_("--- Ended: %s\n"),
1085                                          child_info->cmd);
1086
1087                         gtk_text_buffer_insert(textbuf, &iter,
1088                                                caption, -1);
1089                         gtk_text_buffer_insert(textbuf, &iter,
1090                                                child_info->output->str, -1);
1091                         g_free(caption);
1092                         child_info->new_out = FALSE;
1093                 }
1094         }
1095 }
1096
1097 static void create_io_dialog(Children *children)
1098 {
1099         GtkWidget *dialog;
1100         GtkWidget *vbox;
1101         GtkWidget *entry = NULL;
1102         GtkWidget *input_hbox = NULL;
1103         GtkWidget *send_button;
1104         GtkWidget *label;
1105         GtkWidget *text;
1106         GtkWidget *scrolledwin;
1107         GtkWidget *hbox;
1108         GtkWidget *progress_bar = NULL;
1109         GtkWidget *abort_button;
1110         GtkWidget *close_button;
1111         GdkFont   *output_font;
1112
1113         debug_print("Creating action IO dialog\n");
1114
1115         dialog = gtk_dialog_new();
1116         gtk_container_set_border_width
1117                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1118         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1119         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1120         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1121         manage_window_set_transient(GTK_WINDOW(dialog));
1122         g_signal_connect(G_OBJECT(dialog), "delete_event",
1123                          G_CALLBACK(delete_io_dialog_cb), children);
1124         g_signal_connect(G_OBJECT(dialog), "destroy",
1125                          G_CALLBACK(hide_io_dialog_cb),
1126                          children);
1127
1128         vbox = gtk_vbox_new(FALSE, 8);
1129         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1130         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1131         gtk_widget_show(vbox);
1132
1133         label = gtk_label_new(children->action);
1134         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1135         gtk_widget_show(label);
1136
1137         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1138         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1139                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1140         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1141         gtk_widget_set_size_request(scrolledwin, 480, 200);
1142         gtk_widget_hide(scrolledwin);
1143
1144         text = gtk_text_view_new();
1145         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1146         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1147         gtk_widget_show(text);
1148
1149         if (children->open_in) {
1150                 input_hbox = gtk_hbox_new(FALSE, 8);
1151                 gtk_widget_show(input_hbox);
1152
1153                 entry = gtk_entry_new();
1154                 gtk_widget_set_size_request(entry, 320, -1);
1155                 g_signal_connect(G_OBJECT(entry), "activate",
1156                                  G_CALLBACK(send_input), children);
1157                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1158                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1159                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1160                 gtk_widget_show(entry);
1161
1162                 send_button = gtk_button_new_with_label(_(" Send "));
1163                 g_signal_connect(G_OBJECT(send_button), "clicked",
1164                                  G_CALLBACK(send_input), children);
1165                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1166                                    FALSE, 0);
1167                 gtk_widget_show(send_button);
1168
1169                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1170                 gtk_widget_grab_focus(entry);
1171         }
1172
1173         if (children->initial_nb > 1) {
1174                 progress_bar = gtk_progress_bar_new();
1175                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1176                                 GTK_PROGRESS_CONTINUOUS);
1177                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1178                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1179                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1180                                 FALSE);
1181                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1182                                 _("Completed %v/%u"));
1183                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1184                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1185                                 children->initial_nb -children->nb,
1186                                 0.0, children->initial_nb);
1187
1188                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1189                 gtk_widget_show(progress_bar);
1190         }
1191
1192         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1193                                 &close_button, _("Close"), NULL, NULL);
1194         g_signal_connect(G_OBJECT(abort_button), "clicked",
1195                          G_CALLBACK(kill_children_cb), children);
1196         g_signal_connect(G_OBJECT(close_button), "clicked",
1197                          G_CALLBACK(hide_io_dialog_cb), children);
1198         gtk_widget_show(hbox);
1199
1200         if (children->nb)
1201                 gtk_widget_set_sensitive(close_button, FALSE);
1202
1203         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1204
1205         children->dialog       = dialog;
1206         children->scrolledwin  = scrolledwin;
1207         children->text         = text;
1208         children->input_hbox   = children->open_in ? input_hbox : NULL;
1209         children->input_entry  = children->open_in ? entry : NULL;
1210         children->progress_bar = progress_bar;
1211         children->abort_btn    = abort_button;
1212         children->close_btn    = close_button;
1213
1214 #warning FIXME_GTK2 convert to Pango / FontDesc?
1215 #if 0
1216         output_font = gtkut_font_load_from_fontset(prefs_common.textfont);
1217         gtk_object_set_data_full(GTK_OBJECT(dialog), "s_txtfont",
1218                                  output_font,
1219                                  (GtkDestroyNotify)gdk_font_unref);
1220 #endif
1221         gtk_widget_show(dialog);
1222 }
1223
1224 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1225 {
1226         ChildInfo *child_info = (ChildInfo *)data;
1227         gchar buf;
1228         gint c;
1229
1230         gdk_input_remove(child_info->tag_status);
1231
1232         c = read(source, &buf, 1);
1233         debug_print("Child returned %c\n", buf);
1234
1235         waitpid(-child_info->pid, NULL, 0);
1236         childinfo_close_pipes(child_info);
1237         child_info->pid = 0;
1238
1239         wait_for_children(child_info->children);
1240 }
1241
1242 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1243 {
1244         Children *children = (Children *)data;
1245         ChildInfo *child_info = (ChildInfo *)children->list->data;
1246         gchar *input;
1247         gint c, count, len;
1248
1249         debug_print("Sending input to grand child.\n");
1250         if (!(cond && GDK_INPUT_WRITE))
1251                 return;
1252
1253         gdk_input_remove(child_info->tag_in);
1254         child_info->tag_in = -1;
1255
1256         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1257                                        0, -1);
1258         len = strlen(input);
1259         count = 0;
1260
1261         do {
1262                 c = write(child_info->chld_in, input + count, len - count);
1263                 if (c >= 0)
1264                         count += c;
1265         } while (c >= 0 && count < len);
1266
1267         if (c >= 0)
1268                 write(child_info->chld_in, "\n", 2);
1269
1270         g_free(input);
1271
1272         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1273         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1274         close(child_info->chld_in);
1275         child_info->chld_in = -1;
1276         debug_print("Input to grand child sent.\n");
1277 }
1278
1279 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1280 {
1281         ChildInfo *child_info = (ChildInfo *)data;
1282         gint c, i;
1283         gchar buf[BUFFSIZE];
1284
1285         debug_print("Catching grand child's output.\n");
1286         if (child_info->children->action_type &
1287             (ACTION_PIPE_OUT | ACTION_INSERT)
1288             && source == child_info->chld_out) {
1289                 GtkTextView *text = GTK_TEXT_VIEW(child_info->children->msg_text);
1290                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1291                 GtkTextIter iter1, iter2;
1292                 GtkTextMark *mark;
1293
1294                 mark = gtk_text_buffer_get_insert(textbuf);
1295                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter1, mark);
1296                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter2, mark);
1297
1298                 while (TRUE) {
1299                         c = read(source, buf, sizeof(buf) - 1);
1300                         if (c == 0)
1301                                 break;
1302                         gtk_text_buffer_insert(textbuf, &iter2, buf, c);
1303                 }
1304                 if (child_info->children->is_selection) {
1305                         gtk_text_buffer_place_cursor(textbuf, &iter1);
1306                         gtk_text_buffer_move_mark_by_name
1307                                 (textbuf, "selection_bound", &iter2);
1308                 }
1309         } else {
1310                 c = read(source, buf, sizeof(buf) - 1);
1311                 for (i = 0; i < c; i++)
1312                         g_string_append_c(child_info->output, buf[i]);
1313                 if (c > 0)
1314                         child_info->new_out = TRUE;
1315         }
1316         if (c == 0) {
1317                 if (source == child_info->chld_out) {
1318                         gdk_input_remove(child_info->tag_out);
1319                         child_info->tag_out = -1;
1320                         close(child_info->chld_out);
1321                         child_info->chld_out = -1;
1322                 } else {
1323                         gdk_input_remove(child_info->tag_err);
1324                         child_info->tag_err = -1;
1325                         close(child_info->chld_err);
1326                         child_info->chld_err = -1;
1327                 }
1328         }
1329
1330         wait_for_children(child_info->children);
1331 }
1332
1333 static gchar *get_user_string(const gchar *action, ActionType type)
1334 {
1335         gchar *message;
1336         gchar *user_str = NULL;
1337
1338         switch (type) {
1339         case ACTION_USER_HIDDEN_STR:
1340                 message = g_strdup_printf
1341                         (_("Enter the argument for the following action:\n"
1342                            "(`%%h' will be replaced with the argument)\n"
1343                            "  %s"),
1344                          action);
1345                 user_str = input_dialog_with_invisible
1346                         (_("Action's hidden user argument"), message, NULL);
1347                 break;
1348         case ACTION_USER_STR:
1349                 message = g_strdup_printf
1350                         (_("Enter the argument for the following action:\n"
1351                            "(`%%u' will be replaced with the argument)\n"
1352                            "  %s"),
1353                          action);
1354                 user_str = input_dialog
1355                         (_("Action's user argument"), message, NULL);
1356                 break;
1357         default:
1358                 g_warning("Unsupported action type %d", type);
1359         }
1360
1361         return user_str;
1362 }