/* util.c
* Utility routines
*
- * $Id: util.c,v 1.9 1998/12/29 04:05:37 gerald Exp $
+ * $Id: util.c,v 1.54 2001/11/09 07:44:48 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
#include <glib.h>
-#include <gtk/gtk.h>
-
-#include <stdarg.h>
-#include <strings.h>
+#include <stdlib.h>
+#include <string.h>
#include <stdio.h>
+#include <errno.h>
+
+#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 "packet.h"
-#include "util.h"
+#ifdef NEED_MKSTEMP
+#include "mkstemp.h"
+#endif
-#include "image/icon-excl.xpm"
-#include "image/icon-ethereal.xpm"
+#ifdef HAVE_IO_H
+#include <io.h>
+typedef int mode_t; /* for win32 */
+#endif
-const gchar *bm_key = "button mask";
+#include "util.h"
-/* 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
- *
+/*
+ * Collect command-line arguments as a string consisting of the arguments,
+ * separated by spaces.
*/
-
-#define ESD_MAX_MSG_LEN 1024
-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;
- }
+char *
+get_args_as_string(int argc, char **argv, int optind)
+{
+ int len;
+ int i;
+ char *argstring;
- 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);
- }
+ /*
+ * 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 */
+ }
- if (btn_mask)
- *btn_mask = ESD_BTN_OK;
+ /*
+ * Allocate the buffer for the string.
+ */
+ argstring = g_malloc(len);
- gtk_widget_show(win);
+ /*
+ * Now construct the string.
+ */
+ strcpy(argstring, "");
+ i = optind;
+ for (;;) {
+ strcat(argstring, argv[i]);
+ i++;
+ if (i == argc)
+ break;
+ strcat(argstring, " ");
+ }
+ return argstring;
}
-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));
+static char *
+setup_tmpdir(char *dir)
+{
+ int len = strlen(dir);
+ char *newdir;
+
+ /* Append slash if necessary */
+ if (dir[len - 1] == '/') {
+ newdir = dir;
+ }
+ else {
+ newdir = g_malloc(len + 2);
+ strcpy(newdir, dir);
+ strcat(newdir, "/");
+ }
+ return newdir;
}
-/* Generate, into "buf", a string showing the bits of a bitfield.
- Return a pointer to the character after that string. */
-static char *
-decode_bitfield_value(char *buf, guint32 val, guint32 mask, int width)
+static int
+try_tempfile(char *namebuf, int namebuflen, const char *dir, const char *pfx)
{
- int i;
- guint32 bit;
- char *p;
-
- i = 0;
- p = buf;
- bit = 1 << (width - 1);
- for (;;) {
- if (mask & bit) {
- /* This bit is part of the field. Show its value. */
- if (val & bit)
- *p++ = '1';
- else
- *p++ = '0';
- } else {
- /* This bit is not part of the field. */
- *p++ = '.';
- }
- bit >>= 1;
- i++;
- if (i >= width)
- break;
- if (i % 4 == 0)
- *p++ = ' ';
- }
- strcpy(p, " = ");
- p += 3;
- return p;
+ static const char suffix[] = "XXXXXXXXXX";
+ int namelen = strlen(dir) + strlen(pfx) + sizeof suffix;
+ mode_t old_umask;
+ 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;
+ }
+ strcpy(namebuf, dir);
+ strcat(namebuf, pfx);
+ strcat(namebuf, suffix);
+
+ /* The Single UNIX Specification doesn't say that "mkstemp()"
+ creates the temporary file with mode rw-------, so we
+ won't assume that all UNIXes will do so; instead, we set
+ the umask to 0077 to take away all group and other
+ permissions, attempt to create the file, and then put
+ the umask back. */
+ old_umask = umask(0077);
+ tmp_fd = mkstemp(namebuf);
+ umask(old_umask);
+ return tmp_fd;
+}
+
+static char *tmpdir = NULL;
+#ifdef WIN32
+static char *temp = NULL;
+#endif
+static char *E_tmpdir;
+
+#ifndef P_tmpdir
+#define P_tmpdir "/var/tmp"
+#endif
+
+int
+create_tempfile(char *namebuf, int namebuflen, const char *pfx)
+{
+ char *dir;
+ int fd;
+ static gboolean initialized;
+
+ if (!initialized) {
+ if ((dir = getenv("TMPDIR")) != NULL)
+ tmpdir = setup_tmpdir(dir);
+#ifdef WIN32
+ if ((dir = getenv("TEMP")) != NULL)
+ temp = setup_tmpdir(dir);
+#endif
+
+ E_tmpdir = setup_tmpdir(P_tmpdir);
+ initialized = TRUE;
+ }
+
+ if (tmpdir != NULL) {
+ fd = try_tempfile(namebuf, namebuflen, tmpdir, pfx);
+ if (fd != -1)
+ return fd;
+ }
+
+#ifdef WIN32
+ if (temp != NULL) {
+ fd = try_tempfile(namebuf, namebuflen, temp, pfx);
+ if (fd != -1)
+ return fd;
+ }
+#endif
+
+ fd = try_tempfile(namebuf, namebuflen, E_tmpdir, pfx);
+ if (fd != -1)
+ return fd;
+
+ return try_tempfile(namebuf, namebuflen, "/tmp", pfx);
+}
+
+/* ASCII/EBCDIC conversion tables from
+ * http://www.room42.com/store/computer_center/code_tables.shtml
+ */
+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];
+ }
}
-/* Generate a string describing a Boolean bitfield (a one-bit field that
- says something is either true of false). */
-const char *
-decode_boolean_bitfield(guint32 val, guint32 mask, int width,
- const char *truedesc, const char *falsedesc)
+guint8
+ASCII_to_EBCDIC1(guint8 c)
{
- static char buf[1025];
- char *p;
-
- p = decode_bitfield_value(buf, val, mask, width);
- if (val & mask)
- strcpy(p, truedesc);
- else
- strcpy(p, falsedesc);
- return buf;
+ return ASCII_translate_EBCDIC[c];
}
-/* Generate a string describing an enumerated bitfield (an N-bit field
- with various specific values having particular names). */
-const char *
-decode_enumerated_bitfield(guint32 val, guint32 mask, int width,
- const value_string *tab, const char *fmt)
+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)
{
- static char buf[1025];
- char *p;
+ guint i;
+ guint8 *bufptr;
+
+ bufptr = buf;
+
+ for (i = 0; i < bytes; i++, bufptr++) {
+ *bufptr = EBCDIC_translate_ASCII[*bufptr];
+ }
+}
- p = decode_bitfield_value(buf, val, mask, width);
- sprintf(p, fmt, val_to_str(val & mask, tab, "Unknown"));
- return buf;
+guint8
+EBCDIC_to_ASCII1(guint8 c)
+{
+ return EBCDIC_translate_ASCII[c];
}
-/* Generate a string describing a numeric bitfield (an N-bit field whose
- value is just a number). */
-const char *
-decode_numeric_bitfield(guint32 val, guint32 mask, int width,
- const char *fmt)
+/* 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)
{
- static char buf[1025];
- char *p;
+ 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. */
- p = decode_bitfield_value(buf, val, mask, width);
- sprintf(p, fmt, val & mask);
- return buf;
+ *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)--;
+ }
+ }
}
git.samba.org / obnox / wireshark / wip.git / blobdiff