forked from osmocom/wireshark
400 lines
11 KiB
C
400 lines
11 KiB
C
/* util.c
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* Utility routines
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*
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* $Id: util.c,v 1.23 1999/11/22 06:24:42 gram Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <gtk/gtk.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#ifdef NEED_SNPRINTF_H
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# ifdef HAVE_STDARG_H
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# include <stdarg.h>
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# else
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# include <varargs.h>
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# endif
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# include "snprintf.h"
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#endif
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#include "util.h"
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#include "image/icon-excl.xpm"
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#include "image/icon-ethereal.xpm"
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static void simple_dialog_cancel_cb(GtkWidget *, gpointer);
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const gchar *bm_key = "button mask";
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/* Simple dialog function - Displays a dialog box with the supplied message
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* text.
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*
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* Args:
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* type : One of ESD_TYPE_*.
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* btn_mask : The address of a gint. The value passed in determines if
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* the 'Cancel' button is displayed. The button pressed by the
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* user is passed back.
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* msg_format : Sprintf-style format of the text displayed in the dialog.
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* ... : Argument list for msg_format
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*
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*/
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#define ESD_MAX_MSG_LEN 2048
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void
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simple_dialog(gint type, gint *btn_mask, gchar *msg_format, ...) {
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GtkWidget *win, *main_vb, *top_hb, *type_pm, *msg_label,
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*bbox, *ok_btn, *cancel_btn;
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GdkPixmap *pixmap;
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GdkBitmap *mask;
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GtkStyle *style;
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GdkColormap *cmap;
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va_list ap;
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gchar message[ESD_MAX_MSG_LEN];
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gchar **icon;
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/* Main window */
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win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_container_border_width(GTK_CONTAINER(win), 7);
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switch (type) {
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case ESD_TYPE_WARN :
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gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Warning");
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icon = icon_excl_xpm;
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break;
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case ESD_TYPE_CRIT :
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gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Critical");
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icon = icon_excl_xpm;
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break;
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case ESD_TYPE_INFO :
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default :
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icon = icon_ethereal_xpm;
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gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Information");
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break;
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}
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gtk_object_set_data(GTK_OBJECT(win), bm_key, btn_mask);
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/* Container for our rows */
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main_vb = gtk_vbox_new(FALSE, 5);
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gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
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gtk_container_add(GTK_CONTAINER(win), main_vb);
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gtk_widget_show(main_vb);
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/* Top row: Icon and message text */
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top_hb = gtk_hbox_new(FALSE, 10);
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gtk_container_add(GTK_CONTAINER(main_vb), top_hb);
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gtk_widget_show(top_hb);
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style = gtk_widget_get_style(win);
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cmap = gdk_colormap_get_system();
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pixmap = gdk_pixmap_colormap_create_from_xpm_d(NULL, cmap, &mask,
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&style->bg[GTK_STATE_NORMAL], icon);
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type_pm = gtk_pixmap_new(pixmap, mask);
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gtk_misc_set_alignment (GTK_MISC (type_pm), 0.5, 0.0);
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gtk_container_add(GTK_CONTAINER(top_hb), type_pm);
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gtk_widget_show(type_pm);
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/* Load our vararg list into the message string */
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va_start(ap, msg_format);
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vsnprintf(message, ESD_MAX_MSG_LEN, msg_format, ap);
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msg_label = gtk_label_new(message);
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gtk_label_set_justify(GTK_LABEL(msg_label), GTK_JUSTIFY_FILL);
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gtk_container_add(GTK_CONTAINER(top_hb), msg_label);
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gtk_widget_show(msg_label);
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/* Button row */
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bbox = gtk_hbutton_box_new();
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gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END);
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gtk_container_add(GTK_CONTAINER(main_vb), bbox);
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gtk_widget_show(bbox);
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ok_btn = gtk_button_new_with_label ("OK");
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gtk_signal_connect_object(GTK_OBJECT(ok_btn), "clicked",
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GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT (win));
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gtk_container_add(GTK_CONTAINER(bbox), ok_btn);
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GTK_WIDGET_SET_FLAGS(ok_btn, GTK_CAN_DEFAULT);
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gtk_widget_grab_default(ok_btn);
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gtk_widget_show(ok_btn);
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if (btn_mask && *btn_mask == ESD_BTN_CANCEL) {
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cancel_btn = gtk_button_new_with_label("Cancel");
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gtk_signal_connect(GTK_OBJECT(cancel_btn), "clicked",
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GTK_SIGNAL_FUNC(simple_dialog_cancel_cb), (gpointer) win);
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gtk_container_add(GTK_CONTAINER(bbox), cancel_btn);
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GTK_WIDGET_SET_FLAGS(cancel_btn, GTK_CAN_DEFAULT);
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gtk_widget_show(cancel_btn);
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}
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if (btn_mask)
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*btn_mask = ESD_BTN_OK;
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gtk_widget_show(win);
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}
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static void
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simple_dialog_cancel_cb(GtkWidget *w, gpointer win) {
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gint *btn_mask = (gint *) gtk_object_get_data(win, bm_key);
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if (btn_mask)
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*btn_mask = ESD_BTN_CANCEL;
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gtk_widget_destroy(GTK_WIDGET(win));
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}
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static char *
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setup_tmpdir(char *dir)
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{
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int len = strlen(dir);
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char *newdir;
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/* Append slash if necessary */
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if (dir[len - 1] == '/') {
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newdir = dir;
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}
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else {
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newdir = g_malloc(len + 2);
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strcpy(newdir, dir);
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strcat(newdir, "/");
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}
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return newdir;
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}
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static int
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try_tempfile(char *namebuf, int namebuflen, const char *dir, const char *pfx)
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{
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static const char suffix[] = "XXXXXXXXXX";
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int namelen = strlen(dir) + strlen(pfx) + sizeof suffix;
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mode_t old_umask;
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int tmp_fd;
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if (namebuflen < namelen) {
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/* Stick in a truncated name, so that if this error is
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reported with the file name, you at least get
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something. */
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snprintf(namebuf, namebuflen, "%s%s%s", dir, pfx, suffix);
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errno = ENAMETOOLONG;
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return -1;
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}
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strcpy(namebuf, dir);
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strcat(namebuf, pfx);
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strcat(namebuf, suffix);
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/* The Single UNIX Specification doesn't say that "mkstemp()"
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creates the temporary file with mode rw-------, so we
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won't assume that all UNIXes will do so; instead, we set
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the umask to 0077 to take away all group and other
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permissions, attempt to create the file, and then put
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the umask back. */
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old_umask = umask(0077);
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tmp_fd = mkstemp(namebuf);
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umask(old_umask);
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return tmp_fd;
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}
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static char *tmpdir = NULL;
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#ifdef WIN32
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static char *temp = NULL;
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#endif
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static char *E_tmpdir;
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#ifndef P_tmpdir
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#define P_tmpdir "/var/tmp"
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#endif
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int
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create_tempfile(char *namebuf, int namebuflen, const char *pfx)
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{
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char *dir;
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int fd;
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static gboolean initialized;
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if (!initialized) {
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if ((dir = getenv("TMPDIR")) != NULL)
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tmpdir = setup_tmpdir(dir);
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#ifdef WIN32
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if ((dir = getenv("TEMP")) != NULL)
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temp = setup_tmpdir(dir);
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#endif
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E_tmpdir = setup_tmpdir(P_tmpdir);
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initialized = TRUE;
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}
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if (tmpdir != NULL) {
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fd = try_tempfile(namebuf, namebuflen, tmpdir, pfx);
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if (fd != -1)
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return fd;
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}
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#ifdef WIN32
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if (temp != NULL) {
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fd = try_tempfile(namebuf, namebuflen, temp, pfx);
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if (fd != -1)
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return fd;
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}
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#endif
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fd = try_tempfile(namebuf, namebuflen, E_tmpdir, pfx);
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if (fd != -1)
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return fd;
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return try_tempfile(namebuf, namebuflen, "/tmp", pfx);
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}
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/* ASCII/EBCDIC conversion tables from
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* http://www.room42.com/store/computer_center/code_tables.shtml
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*/
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static guint8 ASCII_translate_EBCDIC [ 256 ] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
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0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D,
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0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
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0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
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0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
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0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
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0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
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0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
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0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
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0x7D, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
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0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
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0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
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0xA8, 0xA9, 0xC0, 0x6A, 0xD0, 0xA1, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B
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};
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void
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ASCII_to_EBCDIC(guint8 *buf, guint bytes)
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{
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guint i;
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guint8 *bufptr;
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bufptr = buf;
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for (i = 0; i < bytes; i++, bufptr++) {
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*bufptr = ASCII_translate_EBCDIC[*bufptr];
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}
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}
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guint8
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ASCII_to_EBCDIC1(guint8 c)
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{
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return ASCII_translate_EBCDIC[c];
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}
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static guint8 EBCDIC_translate_ASCII [ 256 ] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
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0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
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0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
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0x2E, 0x2E, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x2E, 0x3F,
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0x20, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
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0x26, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
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0x2D, 0x2F, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x7C, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
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0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
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0x2E, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
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0x69, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
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0x72, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
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0x7A, 0x2E, 0x2E, 0x2E, 0x5B, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x2E, 0x5D, 0x2E, 0x2E,
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0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
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0x49, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51,
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0x52, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x5C, 0x2E, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
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0x5A, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E
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};
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void
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EBCDIC_to_ASCII(guint8 *buf, guint bytes)
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{
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guint i;
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guint8 *bufptr;
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bufptr = buf;
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for (i = 0; i < bytes; i++, bufptr++) {
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*bufptr = EBCDIC_translate_ASCII[*bufptr];
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}
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}
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guint8
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EBCDIC_to_ASCII1(guint8 c)
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{
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return EBCDIC_translate_ASCII[c];
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}
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