/* util.c
* Utility routines
*
- * $Id: util.c,v 1.20 1999/09/23 05:20:18 guy Exp $
+ * $Id: util.c,v 1.76 2004/01/11 22:17:42 guy Exp $
*
* Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@zing.org>
+ * By Gerald Combs <gerald@ethereal.com>
* 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.
#include <glib.h>
-#include <gtk/gtk.h>
-
-#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef NEED_SNPRINTF_H
-# ifdef HAVE_STDARG_H
-# include <stdarg.h>
-# else
-# include <varargs.h>
-# endif
# include "snprintf.h"
#endif
-#include "util.h"
-
-#include "image/icon-excl.xpm"
-#include "image/icon-ethereal.xpm"
-
-static void simple_dialog_cancel_cb(GtkWidget *, gpointer);
-
-const gchar *bm_key = "button mask";
+#ifdef NEED_MKSTEMP
+#include "mkstemp.h"
+#endif
-/* Simple dialog function - Displays a dialog box with the supplied message
- * text.
- *
- * Args:
- * type : One of ESD_TYPE_*.
- * btn_mask : The address of a gint. The value passed in determines if
- * the 'Cancel' button is displayed. The button pressed by the
- * user is passed back.
- * msg_format : Sprintf-style format of the text displayed in the dialog.
- * ... : Argument list for msg_format
- *
+#ifdef HAVE_IO_H
+#include <io.h>
+#ifndef __MINGW32__
+typedef int mode_t; /* for win32 */
+#endif /* __MINGW32__ */
+#endif /* HAVE_IO_H */
+
+/*
+ * This has to come after the include of <pcap.h>, as the include of
+ * <pcap.h> might cause <winsock2.h> to be included, and if we've
+ * already included <winsock.h> as a result of including <windows.h>,
+ * we get a bunch of redefinitions.
*/
-
-#define ESD_MAX_MSG_LEN 2048
-void
-simple_dialog(gint type, gint *btn_mask, gchar *msg_format, ...) {
- GtkWidget *win, *main_vb, *top_hb, *type_pm, *msg_label,
- *bbox, *ok_btn, *cancel_btn;
- GdkPixmap *pixmap;
- GdkBitmap *mask;
- GtkStyle *style;
- GdkColormap *cmap;
- va_list ap;
- gchar message[ESD_MAX_MSG_LEN];
- gchar **icon;
-
- /* Main window */
- win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
- gtk_container_border_width(GTK_CONTAINER(win), 7);
-
- switch (type) {
- case ESD_TYPE_WARN :
- gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Warning");
- icon = icon_excl_xpm;
- break;
- case ESD_TYPE_CRIT :
- gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Critical");
- icon = icon_excl_xpm;
- break;
- case ESD_TYPE_INFO :
- default :
- icon = icon_ethereal_xpm;
- gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Information");
- break;
- }
-
- gtk_object_set_data(GTK_OBJECT(win), bm_key, btn_mask);
-
- /* Container for our rows */
- main_vb = gtk_vbox_new(FALSE, 5);
- gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
- gtk_container_add(GTK_CONTAINER(win), main_vb);
- gtk_widget_show(main_vb);
-
- /* Top row: Icon and message text */
- top_hb = gtk_hbox_new(FALSE, 10);
- gtk_container_add(GTK_CONTAINER(main_vb), top_hb);
- gtk_widget_show(top_hb);
-
- style = gtk_widget_get_style(win);
- cmap = gdk_colormap_get_system();
- pixmap = gdk_pixmap_colormap_create_from_xpm_d(NULL, cmap, &mask,
- &style->bg[GTK_STATE_NORMAL], icon);
- type_pm = gtk_pixmap_new(pixmap, mask);
- gtk_misc_set_alignment (GTK_MISC (type_pm), 0.5, 0.0);
- gtk_container_add(GTK_CONTAINER(top_hb), type_pm);
- gtk_widget_show(type_pm);
-
- /* Load our vararg list into the message string */
- va_start(ap, msg_format);
- vsnprintf(message, ESD_MAX_MSG_LEN, msg_format, ap);
-
- msg_label = gtk_label_new(message);
- gtk_label_set_justify(GTK_LABEL(msg_label), GTK_JUSTIFY_FILL);
- gtk_container_add(GTK_CONTAINER(top_hb), msg_label);
- gtk_widget_show(msg_label);
-
- /* Button row */
- bbox = gtk_hbutton_box_new();
- gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END);
- gtk_container_add(GTK_CONTAINER(main_vb), bbox);
- gtk_widget_show(bbox);
-
- ok_btn = gtk_button_new_with_label ("OK");
- gtk_signal_connect_object(GTK_OBJECT(ok_btn), "clicked",
- GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT (win));
- gtk_container_add(GTK_CONTAINER(bbox), ok_btn);
- GTK_WIDGET_SET_FLAGS(ok_btn, GTK_CAN_DEFAULT);
- gtk_widget_grab_default(ok_btn);
- gtk_widget_show(ok_btn);
-
- if (btn_mask && *btn_mask == ESD_BTN_CANCEL) {
- cancel_btn = gtk_button_new_with_label("Cancel");
- gtk_signal_connect(GTK_OBJECT(cancel_btn), "clicked",
- GTK_SIGNAL_FUNC(simple_dialog_cancel_cb), (gpointer) win);
- gtk_container_add(GTK_CONTAINER(bbox), cancel_btn);
- GTK_WIDGET_SET_FLAGS(cancel_btn, GTK_CAN_DEFAULT);
- gtk_widget_show(cancel_btn);
- }
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
- if (btn_mask)
- *btn_mask = ESD_BTN_OK;
+#include "util.h"
- gtk_widget_show(win);
-}
+/*
+ * Collect command-line arguments as a string consisting of the arguments,
+ * separated by spaces.
+ */
+char *
+get_args_as_string(int argc, char **argv, int optind)
+{
+ int len;
+ int i;
+ char *argstring;
+
+ /*
+ * Find out how long the string will be.
+ */
+ len = 0;
+ for (i = optind; i < argc; i++) {
+ len += strlen(argv[i]);
+ len++; /* space, or '\0' if this is the last argument */
+ }
-static void
-simple_dialog_cancel_cb(GtkWidget *w, gpointer win) {
- gint *btn_mask = (gint *) gtk_object_get_data(win, bm_key);
-
- if (btn_mask)
- *btn_mask = ESD_BTN_CANCEL;
- gtk_widget_destroy(GTK_WIDGET(win));
+ /*
+ * Allocate the buffer for the string.
+ */
+ argstring = g_malloc(len);
+
+ /*
+ * Now construct the string.
+ */
+ strcpy(argstring, "");
+ i = optind;
+ for (;;) {
+ strcat(argstring, argv[i]);
+ i++;
+ if (i == argc)
+ break;
+ strcat(argstring, " ");
+ }
+ return argstring;
}
static char *
int tmp_fd;
if (namebuflen < namelen) {
+ /* Stick in a truncated name, so that if this error is
+ reported with the file name, you at least get
+ something. */
+ snprintf(namebuf, namebuflen, "%s%s%s", dir, pfx, suffix);
errno = ENAMETOOLONG;
return -1;
}
return try_tempfile(namebuf, namebuflen, "/tmp", pfx);
}
+
+/* ASCII/EBCDIC conversion tables from
+ * http://www.room42.com/store/computer_center/code_tables.shtml
+ */
+#if 0
+static guint8 ASCII_translate_EBCDIC [ 256 ] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+ 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+ 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+ 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D,
+ 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
+ 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
+ 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
+ 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
+ 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
+ 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+ 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
+ 0x7D, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
+ 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
+ 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
+ 0xA8, 0xA9, 0xC0, 0x6A, 0xD0, 0xA1, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
+ 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B
+};
+
+void
+ASCII_to_EBCDIC(guint8 *buf, guint bytes)
+{
+ guint i;
+ guint8 *bufptr;
+
+ bufptr = buf;
+
+ for (i = 0; i < bytes; i++, bufptr++) {
+ *bufptr = ASCII_translate_EBCDIC[*bufptr];
+ }
+}
+
+guint8
+ASCII_to_EBCDIC1(guint8 c)
+{
+ return ASCII_translate_EBCDIC[c];
+}
+#endif
+
+static guint8 EBCDIC_translate_ASCII [ 256 ] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+ 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+ 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+ 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
+ 0x2E, 0x2E, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+ 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x2E, 0x3F,
+ 0x20, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x2E, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
+ 0x26, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
+ 0x2D, 0x2F, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x7C, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
+ 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
+ 0x2E, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
+ 0x69, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
+ 0x72, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
+ 0x7A, 0x2E, 0x2E, 0x2E, 0x5B, 0x2E, 0x2E,
+ 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x2E, 0x2E, 0x2E, 0x2E, 0x5D, 0x2E, 0x2E,
+ 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
+ 0x49, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51,
+ 0x52, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x5C, 0x2E, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
+ 0x5A, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+ 0x39, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E
+};
+
+void
+EBCDIC_to_ASCII(guint8 *buf, guint bytes)
+{
+ guint i;
+ guint8 *bufptr;
+
+ bufptr = buf;
+
+ for (i = 0; i < bytes; i++, bufptr++) {
+ *bufptr = EBCDIC_translate_ASCII[*bufptr];
+ }
+}
+
+guint8
+EBCDIC_to_ASCII1(guint8 c)
+{
+ return EBCDIC_translate_ASCII[c];
+}
+
+/* Compute the difference between two seconds/microseconds time stamps. */
+void
+compute_timestamp_diff(gint *diffsec, gint *diffusec,
+ guint32 sec1, guint32 usec1, guint32 sec2, guint32 usec2)
+{
+ if (sec1 == sec2) {
+ /* The seconds part of the first time is the same as the seconds
+ part of the second time, so if the microseconds part of the first
+ time is less than the microseconds part of the second time, the
+ first time is before the second time. The microseconds part of
+ the delta should just be the difference between the microseconds
+ part of the first time and the microseconds part of the second
+ time; don't adjust the seconds part of the delta, as it's OK if
+ the microseconds part is negative. */
+
+ *diffsec = sec1 - sec2;
+ *diffusec = usec1 - usec2;
+ } else if (sec1 <= sec2) {
+ /* The seconds part of the first time is less than the seconds part
+ of the second time, so the first time is before the second time.
+
+ Both the "seconds" and "microseconds" value of the delta
+ should have the same sign, so if the difference between the
+ microseconds values would be *positive*, subtract 1,000,000
+ from it, and add one to the seconds value. */
+ *diffsec = sec1 - sec2;
+ if (usec2 >= usec1) {
+ *diffusec = usec1 - usec2;
+ } else {
+ *diffusec = (usec1 - 1000000) - usec2;
+ (*diffsec)++;
+ }
+ } else {
+ /* Oh, good, we're not caught in a chronosynclastic infindibulum. */
+ *diffsec = sec1 - sec2;
+ if (usec2 <= usec1) {
+ *diffusec = usec1 - usec2;
+ } else {
+ *diffusec = (usec1 + 1000000) - usec2;
+ (*diffsec)--;
+ }
+ }
+}
+
+/* Decode a base64 string in-place - simple and slow algorithm.
+ Return length of result. Taken from rproxy/librsync/base64.c by
+ Andrew Tridgell. */
+
+size_t base64_decode(char *s)
+{
+ static const char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ int bit_offset, byte_offset, idx, i, n;
+ unsigned char *d = (unsigned char *)s;
+ char *p;
+
+ n=i=0;
+
+ while (*s && (p=strchr(b64, *s))) {
+ idx = (int)(p - b64);
+ byte_offset = (i*6)/8;
+ bit_offset = (i*6)%8;
+ d[byte_offset] &= ~((1<<(8-bit_offset))-1);
+ if (bit_offset < 3) {
+ d[byte_offset] |= (idx << (2-bit_offset));
+ n = byte_offset+1;
+ } else {
+ d[byte_offset] |= (idx >> (bit_offset-2));
+ d[byte_offset+1] = 0;
+ d[byte_offset+1] |= (idx << (8-(bit_offset-2))) & 0xFF;
+ n = byte_offset+2;
+ }
+ s++; i++;
+ }
+
+ return n;
+}
+
+/* Try to figure out if we're remotely connected, e.g. via ssh or
+ Terminal Server, and create a capture filter that matches aspects of the
+ connection. We match the following environment variables:
+
+ SSH_CONNECTION (ssh): <remote IP> <remote port> <local IP> <local port>
+ SSH_CLIENT (ssh): <remote IP> <remote port> <local port>
+ REMOTEHOST (tcsh, others?): <remote name>
+ DISPLAY (x11): [remote name]:<display num>
+ CLIENTNAME (terminal server): <remote name>
+ */
+
+gchar *get_conn_cfilter(void) {
+ static GString *filter_str = NULL;
+ gchar *env, **tokens;
+
+ if (filter_str == NULL) {
+ filter_str = g_string_new("");
+ }
+ if ((env = getenv("SSH_CONNECTION")) != NULL) {
+ tokens = g_strsplit(env, " ", 4);
+ if (tokens[3]) {
+ g_string_sprintf(filter_str, "not (tcp port %s and ip host %s "
+ "and tcp port %s and ip host %s)", tokens[1], tokens[0],
+ tokens[3], tokens[2]);
+ return filter_str->str;
+ }
+ } else if ((env = getenv("SSH_CLIENT")) != NULL) {
+ tokens = g_strsplit(env, " ", 3);
+ g_string_sprintf(filter_str, "not (tcp port %s and ip host %s "
+ "and tcp port %s)", tokens[1], tokens[0], tokens[2]);
+ return filter_str->str;
+ } else if ((env = getenv("REMOTEHOST")) != NULL) {
+ g_string_sprintf(filter_str, "not ip host %s", env);
+ return filter_str->str;
+ } else if ((env = getenv("DISPLAY")) != NULL) {
+ tokens = g_strsplit(env, ":", 2);
+ if (tokens[0] && tokens[0][0] != 0) {
+ g_string_sprintf(filter_str, "not ip host %s",
+ tokens[0]);
+ return filter_str->str;
+ }
+ } else if ((env = getenv("CLIENTNAME")) != NULL) {
+ if (g_strcasecmp("console", env) != 0) {
+ g_string_sprintf(filter_str, "not ip host %s", env);
+ return filter_str->str;
+ }
+ }
+ return "";
+}