/* prefs.c * Routines for handling preferences * * $Id: prefs.c,v 1.8 1998/10/28 21:38:09 gerald Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_SYS_TYPES_H #include #endif #include #include "ethereal.h" #include "packet.h" #include "file.h" #include "prefs.h" #include "print.h" #include "filter.h" #include "util.h" /* Internal functions */ static int set_prefs(gchar*, gchar*); static void write_prefs(); static void prefs_main_ok_cb(GtkWidget *, gpointer); static void prefs_main_save_cb(GtkWidget *, gpointer); static void prefs_main_cancel_cb(GtkWidget *, gpointer); e_prefs prefs; static int init_prefs = 1; #define PF_NAME ".ethereal/preferences" static gchar *pf_path = NULL; void prefs_cb(GtkWidget *w, gpointer sp) { GtkWidget *prefs_w, *main_vb, *top_hb, *bbox, *prefs_nb, *ok_bt, *save_bt, *cancel_bt; GtkWidget *print_pg, *filter_pg, *filter_te, *label; /* GtkWidget *nlabel; */ gint start_page = (gint) sp; prefs_w = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(prefs_w), "Ethereal: Preferences"); /* Container for each row of widgets */ main_vb = gtk_vbox_new(FALSE, 5); gtk_container_border_width(GTK_CONTAINER(main_vb), 5); gtk_container_add(GTK_CONTAINER(prefs_w), main_vb); gtk_widget_show(main_vb); /* Top row: Preferences notebook */ top_hb = gtk_hbox_new(FALSE, 1); gtk_container_add(GTK_CONTAINER(main_vb), top_hb); gtk_widget_show(top_hb); prefs_nb = gtk_notebook_new(); gtk_container_add(GTK_CONTAINER(main_vb), prefs_nb); gtk_widget_show(prefs_nb); /* General prefs */ /* nlabel = gtk_label_new("Nothing here yet..."); gtk_widget_show (nlabel); label = gtk_label_new ("General"); gtk_notebook_append_page (GTK_NOTEBOOK(prefs_nb), nlabel, label); */ /* Printing prefs */ print_pg = printer_prefs_show(); gtk_object_set_data(GTK_OBJECT(prefs_w), E_PRINT_PAGE_KEY, print_pg); label = gtk_label_new ("Printing"); gtk_notebook_append_page (GTK_NOTEBOOK(prefs_nb), print_pg, label); /* Filter prefs */ filter_te = gtk_object_get_data(GTK_OBJECT(w), E_FILT_TE_PTR_KEY); filter_pg = filter_prefs_show(filter_te); /* Pass along the entry widget pointer from the calling widget */ gtk_object_set_data(GTK_OBJECT(filter_pg), E_FILT_TE_PTR_KEY, filter_te); gtk_object_set_data(GTK_OBJECT(prefs_w), E_FILTER_PAGE_KEY, filter_pg); label = gtk_label_new ("Filters"); gtk_notebook_append_page (GTK_NOTEBOOK(prefs_nb), filter_pg, label); /* Jump to the specified page, if it was supplied */ if (start_page > E_PR_PG_NONE) gtk_notebook_set_page(GTK_NOTEBOOK(prefs_nb), start_page); /* Button row: OK and cancel buttons */ bbox = gtk_hbutton_box_new(); gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END); gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5); gtk_container_add(GTK_CONTAINER(main_vb), bbox); gtk_widget_show(bbox); ok_bt = gtk_button_new_with_label ("OK"); gtk_signal_connect_object(GTK_OBJECT(ok_bt), "clicked", GTK_SIGNAL_FUNC(prefs_main_ok_cb), GTK_OBJECT(prefs_w)); GTK_WIDGET_SET_FLAGS(ok_bt, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (bbox), ok_bt, TRUE, TRUE, 0); gtk_widget_grab_default(ok_bt); gtk_widget_show(ok_bt); save_bt = gtk_button_new_with_label ("Save"); gtk_signal_connect_object(GTK_OBJECT(save_bt), "clicked", GTK_SIGNAL_FUNC(prefs_main_save_cb), GTK_OBJECT(prefs_w)); GTK_WIDGET_SET_FLAGS(save_bt, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (bbox), save_bt, TRUE, TRUE, 0); gtk_widget_show(save_bt); cancel_bt = gtk_button_new_with_label ("Cancel"); gtk_signal_connect_object(GTK_OBJECT(cancel_bt), "clicked", GTK_SIGNAL_FUNC(prefs_main_cancel_cb), GTK_OBJECT(prefs_w)); GTK_WIDGET_SET_FLAGS(cancel_bt, GTK_CAN_DEFAULT); gtk_box_pack_start (GTK_BOX (bbox), cancel_bt, TRUE, TRUE, 0); gtk_widget_show(cancel_bt); gtk_widget_show(prefs_w); } void prefs_main_ok_cb(GtkWidget *w, gpointer win) { printer_prefs_ok(gtk_object_get_data(GTK_OBJECT(win), E_PRINT_PAGE_KEY)); filter_prefs_ok(gtk_object_get_data(GTK_OBJECT(win), E_FILTER_PAGE_KEY)); gtk_widget_destroy(GTK_WIDGET(win)); } void prefs_main_save_cb(GtkWidget *w, gpointer win) { printer_prefs_save(gtk_object_get_data(GTK_OBJECT(win), E_PRINT_PAGE_KEY)); filter_prefs_save(gtk_object_get_data(GTK_OBJECT(win), E_FILTER_PAGE_KEY)); write_prefs(); } void prefs_main_cancel_cb(GtkWidget *w, gpointer win) { printer_prefs_cancel(gtk_object_get_data(GTK_OBJECT(win), E_PRINT_PAGE_KEY)); filter_prefs_cancel(gtk_object_get_data(GTK_OBJECT(win), E_FILTER_PAGE_KEY)); gtk_widget_destroy(GTK_WIDGET(win)); } /* Preferences file format: * - Configuration directives start at the beginning of the line, and * are terminated with a colon. * - Directives can be continued on the next line by preceding them with * whitespace. * * Example: # This is a comment line print.command: lpr print.file: /a/very/long/path/ to/ethereal-out.ps * */ #define MAX_VAR_LEN 32 #define MAX_VAL_LEN 256 void read_prefs() { enum { START, IN_VAR, PRE_VAL, IN_VAL, IN_SKIP }; FILE *pf; gchar cur_var[MAX_VAR_LEN], cur_val[MAX_VAL_LEN]; int got_c, state = START; gint var_len = 0, val_len = 0, fline = 1, pline = 1; /* Initialize preferences. With any luck, these values will be overwritten below. */ if (init_prefs) { init_prefs = 0; prefs.pr_format = PR_FMT_TEXT; prefs.pr_dest = PR_DEST_CMD; prefs.pr_file = g_strdup("ethereal.out"); prefs.pr_cmd = g_strdup("lpr"); } if (! pf_path) { pf_path = (gchar *) g_malloc(strlen(getenv("HOME")) + strlen(PF_NAME) + 4); sprintf(pf_path, "%s/%s", getenv("HOME"), PF_NAME); } if ((pf = fopen(pf_path, "r")) == NULL) { simple_dialog(ESD_TYPE_WARN, NULL, "Can't open preferences file\n\"%s\"."); return; } while ((got_c = getc(pf)) != EOF) { if (got_c == '\n') { state = START; fline++; continue; } if (var_len >= MAX_VAR_LEN) { g_warning ("%s line %d: Variable too long", pf_path, fline); state = IN_SKIP; var_len = 0; continue; } if (val_len >= MAX_VAL_LEN) { g_warning ("%s line %d: Value too long", pf_path, fline); state = IN_SKIP; var_len = 0; continue; } switch (state) { case START: if (isalnum(got_c)) { state = IN_VAR; if (var_len > 0) { cur_var[var_len] = '\0'; cur_val[val_len] = '\0'; if (! set_pref(cur_var, cur_val)) g_warning ("%s line %d: Bogus preference", pf_path, pline); } cur_var[0] = got_c; var_len = 1; pline = fline; } else if (isspace(got_c) && var_len > 0) { state = PRE_VAL; } else if (got_c == '#') { state = IN_SKIP; } else { g_warning ("%s line %d: Malformed line", pf_path, fline); } break; case IN_VAR: if (got_c != ':') { cur_var[var_len] = got_c; var_len++; } else { state = PRE_VAL; val_len = 0; } break; case PRE_VAL: if (!isspace(got_c)) { state = IN_VAL; cur_val[val_len] = got_c; val_len++; } break; case IN_VAL: cur_val[val_len] = got_c; val_len++; break; } } if (var_len > 0) { cur_var[var_len] = '\0'; cur_val[val_len] = '\0'; if (! set_pref(cur_var, cur_val)) g_warning ("%s line %d: Bogus preference", pf_path, pline); } fclose(pf); } #define PRS_PRINT_FMT "print.format" #define PRS_PRINT_DEST "print.destination" #define PRS_PRINT_FILE "print.file" #define PRS_PRINT_CMD "print.command" static gchar *pr_formats[] = { "text", "postscript" }; static gchar *pr_dests[] = { "command", "file" }; int set_pref(gchar *pref, gchar *value) { if (strcmp(pref, PRS_PRINT_FMT) == 0) { if (strcmp(value, pr_formats[PR_FMT_TEXT]) == 0) { prefs.pr_format = PR_FMT_TEXT; } else if (strcmp(value, pr_formats[PR_FMT_PS]) == 0) { prefs.pr_format = PR_FMT_PS; } else { return 0; } } else if (strcmp(pref, PRS_PRINT_DEST) == 0) { if (strcmp(value, pr_dests[PR_DEST_CMD]) == 0) { prefs.pr_dest = PR_DEST_CMD; } else if (strcmp(value, pr_dests[PR_DEST_FILE]) == 0) { prefs.pr_dest = PR_DEST_FILE; } else { return 0; } } else if (strcmp(pref, PRS_PRINT_FILE) == 0) { if (prefs.pr_file) g_free(prefs.pr_file); prefs.pr_file = g_strdup(value); } else if (strcmp(pref, PRS_PRINT_CMD) == 0) { if (prefs.pr_cmd) g_free(prefs.pr_cmd); prefs.pr_cmd = g_strdup(value); } else { return 0; } return 1; } void write_prefs() { FILE *pf; /* To do: Split output lines longer than MAX_VAL_LEN */ if (! pf_path) { pf_path = (gchar *) g_malloc(strlen(getenv("HOME")) + strlen(PF_NAME) + 4); sprintf(pf_path, "%s/%s", getenv("HOME"), PF_NAME); } if ((pf = fopen(pf_path, "w")) == NULL) { simple_dialog(ESD_TYPE_WARN, NULL, "Can't open preferences file\n\"%s\"."); return; } fputs("# Configuration file for Ethereal " VERSION ".\n" "#\n" "# This file is regenerated each time preferences are saved within\n" "# Ethereal. Making manual changes should be safe, however.\n" "\n" "######## Printing ########\n" "\n", pf); fprintf (pf, "# Can be one of \"text\" or \"postscript\".\n" "print.format: %s\n\n", pr_formats[prefs.pr_format]); fprintf (pf, "# Can be one of \"command\" or \"file\".\n" "print.destination: %s\n\n", pr_dests[prefs.pr_dest]); fprintf (pf, "# This is the file that gets written to when the " "destination is set to \"file\"\n" "%s: %s\n\n", PRS_PRINT_FILE, prefs.pr_file); fprintf (pf, "# Output gets piped to this command when the destination " "is set to \"command\"\n" "%s: %s\n", PRS_PRINT_CMD, prefs.pr_cmd); fclose(pf); }