2 * Routines for handling preferences
4 * $Id: prefs.c,v 1.48 2001/04/02 09:53:42 guy Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@zing.org>
8 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #ifdef HAVE_SYS_TYPES_H
31 #include <sys/types.h>
47 #ifdef HAVE_SYS_STAT_H
52 #include <filesystem.h>
61 #include "prefs-int.h"
63 /* Internal functions */
64 static int set_pref(gchar*, gchar*);
65 static GList *get_string_list(gchar *);
66 static void clear_string_list(GList *);
67 static void free_col_info(e_prefs *);
69 #define PF_NAME "preferences"
71 #define GPF_PATH DATAFILE_DIR "/ethereal.conf"
73 static gboolean init_prefs = TRUE;
74 static gchar *pf_path = NULL;
77 * XXX - variables to allow us to attempt to interpret the first
78 * "mgcp.{tcp,udp}.port" in a preferences file as
79 * "mgcp.{tcp,udp}.gateway_port" and the second as
80 * "mgcp.{tcp,udp}.callagent_port".
82 static int mgcp_tcp_port_count;
83 static int mgcp_udp_port_count;
87 gchar *gui_ptree_line_style_text[] =
88 { "NONE", "SOLID", "DOTTED", "TABBED", NULL };
90 gchar *gui_ptree_expander_style_text[] =
91 { "NONE", "SQUARE", "TRIANGLE", "CIRCULAR", NULL };
93 gchar *gui_hex_dump_highlight_style_text[] =
94 { "BOLD", "INVERSE", NULL };
97 * List of modules with preference settings.
99 static GList *modules;
102 * Register a module that will have preferences.
103 * Specify the name used for the module in the preferences file, the
104 * title used in the tab for it in a preferences dialog box, and a
105 * routine to call back when we apply the preferences.
108 prefs_register_module(const char *name, const char *title,
109 void (*apply_cb)(void))
113 module = g_malloc(sizeof (module_t));
115 module->title = title;
116 module->apply_cb = apply_cb;
117 module->prefs = NULL; /* no preferences, to start */
118 module->numprefs = 0;
119 module->prefs_changed = FALSE;
121 modules = g_list_append(modules, module);
127 * Register that a protocol has preferences.
130 prefs_register_protocol(int id, void (*apply_cb)(void))
132 return prefs_register_module(proto_get_protocol_filter_name(id),
133 proto_get_protocol_short_name(id),
138 * Find a module, given its name.
141 module_match(gconstpointer a, gconstpointer b)
143 const module_t *module = a;
144 const char *name = b;
146 return strcmp(name, module->name);
150 find_module(char *name)
154 list_entry = g_list_find_custom(modules, name, module_match);
155 if (list_entry == NULL)
156 return NULL; /* no such module */
157 return (module_t *) list_entry->data;
166 do_module_callback(gpointer data, gpointer user_data)
168 module_t *module = data;
169 module_cb_arg_t *arg = user_data;
171 (*arg->callback)(module, arg->user_data);
175 * Call a callback function, with a specified argument, for each module.
178 prefs_module_foreach(module_cb callback, gpointer user_data)
182 arg.callback = callback;
183 arg.user_data = user_data;
184 g_list_foreach(modules, do_module_callback, &arg);
188 call_apply_cb(gpointer data, gpointer user_data)
190 module_t *module = data;
192 if (module->prefs_changed) {
193 if (module->apply_cb != NULL)
194 (*module->apply_cb)();
195 module->prefs_changed = FALSE;
200 * Call the "apply" callback function for each module if any of its
201 * preferences have changed, and then clear the flag saying its
202 * preferences have changed, as the module has been notified of that
206 prefs_apply_all(void)
208 g_list_foreach(modules, call_apply_cb, NULL);
212 * Register a preference in a module's list of preferences.
215 register_preference(module_t *module, const char *name, const char *title,
216 const char *description)
220 preference = g_malloc(sizeof (pref_t));
221 preference->name = name;
222 preference->title = title;
223 preference->description = description;
224 preference->ordinal = module->numprefs;
226 module->prefs = g_list_append(module->prefs, preference);
233 * Find a preference in a module's list of preferences, given the module
234 * and the preference's name.
237 preference_match(gconstpointer a, gconstpointer b)
239 const pref_t *pref = a;
240 const char *name = b;
242 return strcmp(name, pref->name);
245 static struct preference *
246 find_preference(module_t *module, char *name)
250 list_entry = g_list_find_custom(module->prefs, name, preference_match);
251 if (list_entry == NULL)
252 return NULL; /* no such preference */
253 return (struct preference *) list_entry->data;
257 * Returns TRUE if the given protocol has registered preferences
260 prefs_is_registered_protocol(char *name)
262 return (find_module(name) != NULL);
266 * Returns the module title of a registered protocol
269 prefs_get_title_by_name(char *name)
271 module_t *m = find_module(name);
272 return (m) ? m->title : NULL;
276 * Register a preference with an unsigned integral value.
279 prefs_register_uint_preference(module_t *module, const char *name,
280 const char *title, const char *description, guint base, guint *var)
284 preference = register_preference(module, name, title, description);
285 preference->type = PREF_UINT;
286 preference->varp.uint = var;
287 preference->info.base = base;
291 * Register a preference with an Boolean value.
294 prefs_register_bool_preference(module_t *module, const char *name,
295 const char *title, const char *description, gboolean *var)
299 preference = register_preference(module, name, title, description);
300 preference->type = PREF_BOOL;
301 preference->varp.bool = var;
305 * Register a preference with an enumerated value.
308 prefs_register_enum_preference(module_t *module, const char *name,
309 const char *title, const char *description, gint *var,
310 const enum_val_t *enumvals, gboolean radio_buttons)
314 preference = register_preference(module, name, title, description);
315 preference->type = PREF_ENUM;
316 preference->varp.enump = var;
317 preference->info.enum_info.enumvals = enumvals;
318 preference->info.enum_info.radio_buttons = radio_buttons;
322 * Register a preference with a character-string value.
325 prefs_register_string_preference(module_t *module, const char *name,
326 const char *title, const char *description, char **var)
330 preference = register_preference(module, name, title, description);
331 preference->type = PREF_STRING;
332 preference->varp.string = var;
333 preference->saved_val.string = NULL;
342 do_pref_callback(gpointer data, gpointer user_data)
345 pref_cb_arg_t *arg = user_data;
347 (*arg->callback)(pref, arg->user_data);
351 * Call a callback function, with a specified argument, for each preference
355 prefs_pref_foreach(module_t *module, pref_cb callback, gpointer user_data)
359 arg.callback = callback;
360 arg.user_data = user_data;
361 g_list_foreach(module->prefs, do_pref_callback, &arg);
365 * Register all non-dissector modules' preferences.
368 prefs_register_modules(void)
372 /* Parse through a list of comma-separated, quoted strings. Return a
373 list of the string data */
375 get_string_list(gchar *str) {
376 enum { PRE_QUOT, IN_QUOT, POST_QUOT };
378 gint state = PRE_QUOT, i = 0, j = 0;
379 gboolean backslash = FALSE;
380 gchar cur_c, *slstr = NULL;
383 while ((cur_c = str[i]) != '\0') {
384 if (cur_c == '"' && ! backslash) {
388 slstr = (gchar *) g_malloc(sizeof(gchar) * COL_MAX_LEN);
394 sl = g_list_append(sl, slstr);
397 clear_string_list(sl);
403 } else if (cur_c == '\\' && ! backslash) {
405 } else if (cur_c == ',' && state == POST_QUOT) {
407 } else if (state == IN_QUOT && j < COL_MAX_LEN) {
413 if (state != POST_QUOT) {
414 clear_string_list(sl);
420 clear_string_list(GList *sl) {
425 l = g_list_remove_link(l, l);
430 * Takes a string, a pointer to an array of "enum_val_t"s, and a default gint
432 * The array must be terminated by an entry with a null "name" string.
433 * If the string matches a "name" strings in an entry, the value from that
434 * entry is returned. Otherwise, the default value that was passed as the
435 * third argument is returned.
438 find_val_for_string(const char *needle, const enum_val_t *haystack,
443 while (haystack[i].name != NULL) {
444 if (strcasecmp(needle, haystack[i].name) == 0) {
445 return haystack[i].value;
449 return default_value;
452 /* Takes an string and a pointer to an array of strings, and a default int value.
453 * The array must be terminated by a NULL string. If the string is found in the array
454 * of strings, the index of that string in the array is returned. Otherwise, the
455 * default value that was passed as the third argument is returned.
458 find_index_from_string_array(char *needle, char **haystack, int default_value)
462 while (haystack[i] != NULL) {
463 if (strcmp(needle, haystack[i]) == 0) {
468 return default_value;
471 /* Preferences file format:
472 * - Configuration directives start at the beginning of the line, and
473 * are terminated with a colon.
474 * - Directives can be continued on the next line by preceding them with
479 # This is a comment line
481 print.file: /a/very/long/path/
486 #define MAX_VAR_LEN 48
487 #define MAX_VAL_LEN 1024
489 #define DEF_NUM_COLS 6
491 static void read_prefs_file(const char *pf_path, FILE *pf);
493 /* Read the preferences file, fill in "prefs", and return a pointer to it.
495 If we got an error (other than "it doesn't exist") trying to read
496 the global preferences file, stuff the errno into "*gpf_errno_return"
497 and a pointer to the path of the file into "*gpf_path_return", and
500 If we got an error (other than "it doesn't exist") trying to read
501 the user's preferences file, stuff the errno into "*pf_errno_return"
502 and a pointer to the path of the file into "*pf_path_return", and
505 read_prefs(int *gpf_errno_return, char **gpf_path_return,
506 int *pf_errno_return, char **pf_path_return)
511 gchar *col_fmt[] = {"No.", "%m", "Time", "%t",
512 "Source", "%s", "Destination", "%d",
513 "Protocol", "%p", "Info", "%i"};
517 /* Initialize preferences to wired-in default values.
518 They may be overridded by the global preferences file or the
519 user's preferences file. */
521 prefs.pr_format = PR_FMT_TEXT;
522 prefs.pr_dest = PR_DEST_CMD;
523 prefs.pr_file = g_strdup("ethereal.out");
524 prefs.pr_cmd = g_strdup("lpr");
525 prefs.col_list = NULL;
526 for (i = 0; i < DEF_NUM_COLS; i++) {
527 cfmt = (fmt_data *) g_malloc(sizeof(fmt_data));
528 cfmt->title = g_strdup(col_fmt[i * 2]);
529 cfmt->fmt = g_strdup(col_fmt[(i * 2) + 1]);
530 prefs.col_list = g_list_append(prefs.col_list, cfmt);
532 prefs.num_cols = DEF_NUM_COLS;
533 prefs.st_client_fg.pixel = 0;
534 prefs.st_client_fg.red = 32767;
535 prefs.st_client_fg.green = 0;
536 prefs.st_client_fg.blue = 0;
537 prefs.st_client_bg.pixel = 65535;
538 prefs.st_client_bg.red = 65535;
539 prefs.st_client_bg.green = 65535;
540 prefs.st_client_bg.blue = 65535;
541 prefs.st_server_fg.pixel = 0;
542 prefs.st_server_fg.red = 0;
543 prefs.st_server_fg.green = 0;
544 prefs.st_server_fg.blue = 32767;
545 prefs.st_server_bg.pixel = 65535;
546 prefs.st_server_bg.red = 65535;
547 prefs.st_server_bg.green = 65535;
548 prefs.st_server_bg.blue = 65535;
549 prefs.gui_scrollbar_on_right = TRUE;
550 prefs.gui_plist_sel_browse = FALSE;
551 prefs.gui_ptree_sel_browse = FALSE;
552 prefs.gui_ptree_line_style = 0;
553 prefs.gui_ptree_expander_style = 1;
554 prefs.gui_hex_dump_highlight_style = 1;
556 prefs.gui_font_name = g_strdup("-*-lucida console-medium-r-*-*-*-100-*-*-*-*-*-*");
559 * XXX - for now, we make the initial font name a pattern that matches
560 * only ISO 8859/1 fonts, so that we don't match 2-byte fonts such
561 * as ISO 10646 fonts.
563 * Users in locales using other one-byte fonts will have to choose
564 * a different font from the preferences dialog - or put the font
565 * selection in the global preferences file to make that font the
566 * default for all users who don't explicitly specify a different
569 * Making this a font set rather than a font has two problems:
571 * 1) as far as I know, you can't select font sets with the
572 * font selection dialog;
574 * 2) if you use a font set, the text to be drawn must be a
575 * multi-byte string in the appropriate locale, but
576 * Ethereal does *NOT* guarantee that's the case - in
577 * the hex-dump window, each character in the text portion
578 * of the display must be a *single* byte, and in the
579 * packet-list and protocol-tree windows, text extracted
580 * from the packet is not necessarily in the right format.
582 * "Doing this right" may, for the packet-list and protocol-tree
583 * windows, require that dissectors know what the locale is
584 * *AND* know what locale and text representation is used in
585 * the packets they're dissecting, and may be impossible in
586 * the hex-dump window (except by punting and displaying only
589 * GTK+ 2.0 may simplify part of the problem, as it will, as I
590 * understand it, use UTF-8-encoded Unicode as its internal
591 * character set; however, we'd still have to know whatever
592 * character set and encoding is used in the packet (which
593 * may differ for different protocols, e.g. SMB might use
594 * PC code pages for some strings and Unicode for others, whilst
595 * NFS might use some UNIX character set encoding, e.g. ISO 8859/x,
596 * or one of the EUC character sets for Asian languages, or one
597 * of the other multi-byte character sets, or UTF-8, or...).
599 * I.e., as far as I can tell, "internationalizing" the packet-list,
600 * protocol-tree, and hex-dump windows involves a lot more than, say,
601 * just using font sets rather than fonts.
603 prefs.gui_font_name = g_strdup("-*-fixed-medium-r-semicondensed-*-*-120-*-*-*-*-iso8859-1");
605 prefs.gui_marked_fg.pixel = 65535;
606 prefs.gui_marked_fg.red = 65535;
607 prefs.gui_marked_fg.green = 65535;
608 prefs.gui_marked_fg.blue = 65535;
609 prefs.gui_marked_bg.pixel = 0;
610 prefs.gui_marked_bg.red = 0;
611 prefs.gui_marked_bg.green = 0;
612 prefs.gui_marked_bg.blue = 0;
616 /* Read the global preferences file, if it exists. */
617 *gpf_path_return = NULL;
618 if ((pf = fopen(GPF_PATH, "r")) != NULL) {
619 /* We succeeded in opening it; read it. */
620 read_prefs_file(GPF_PATH, pf);
623 /* We failed to open it. If we failed for some reason other than
624 "it doesn't exist", return the errno and the pathname, so our
625 caller can report the error. */
626 if (errno != ENOENT) {
627 *gpf_errno_return = errno;
628 *gpf_path_return = GPF_PATH;
632 /* Construct the pathname of the user's preferences file. */
634 pf_path = (gchar *) g_malloc(strlen(get_home_dir()) + strlen(PF_DIR) +
635 strlen(PF_NAME) + 4);
636 sprintf(pf_path, "%s/%s/%s", get_home_dir(), PF_DIR, PF_NAME);
639 /* Read the user's preferences file, if it exists. */
640 *pf_path_return = NULL;
641 if ((pf = fopen(pf_path, "r")) != NULL) {
642 /* We succeeded in opening it; read it. */
643 read_prefs_file(pf_path, pf);
646 /* We failed to open it. If we failed for some reason other than
647 "it doesn't exist", return the errno and the pathname, so our
648 caller can report the error. */
649 if (errno != ENOENT) {
650 *pf_errno_return = errno;
651 *pf_path_return = pf_path;
659 read_prefs_file(const char *pf_path, FILE *pf)
661 enum { START, IN_VAR, PRE_VAL, IN_VAL, IN_SKIP };
662 gchar cur_var[MAX_VAR_LEN], cur_val[MAX_VAL_LEN];
663 int got_c, state = START;
664 gboolean got_val = FALSE;
665 gint var_len = 0, val_len = 0, fline = 1, pline = 1;
668 * Start out the counters of "mgcp.{tcp,udp}.port" entries we've
671 mgcp_tcp_port_count = 0;
672 mgcp_udp_port_count = 0;
674 while ((got_c = getc(pf)) != EOF) {
680 if (var_len >= MAX_VAR_LEN) {
681 g_warning ("%s line %d: Variable too long", pf_path, fline);
686 if (val_len >= MAX_VAL_LEN) {
687 g_warning ("%s line %d: Value too long", pf_path, fline);
695 if (isalnum(got_c)) {
698 cur_var[var_len] = '\0';
699 cur_val[val_len] = '\0';
700 switch (set_pref(cur_var, cur_val)) {
702 case PREFS_SET_SYNTAX_ERR:
703 g_warning ("%s line %d: Syntax error", pf_path, pline);
706 case PREFS_SET_NO_SUCH_PREF:
707 g_warning ("%s line %d: No such preference \"%s\"", pf_path,
712 g_warning ("%s line %d: Incomplete preference", pf_path, pline);
720 } else if (isspace(got_c) && var_len > 0 && got_val) {
722 } else if (got_c == '#') {
725 g_warning ("%s line %d: Malformed line", pf_path, fline);
730 cur_var[var_len] = got_c;
739 if (!isspace(got_c)) {
741 cur_val[val_len] = got_c;
747 cur_val[val_len] = got_c;
750 while (isspace((guchar)cur_val[val_len]) && val_len > 0)
759 cur_var[var_len] = '\0';
760 cur_val[val_len] = '\0';
761 switch (set_pref(cur_var, cur_val)) {
763 case PREFS_SET_SYNTAX_ERR:
764 g_warning ("%s line %d: Syntax error", pf_path, pline);
767 case PREFS_SET_NO_SUCH_PREF:
768 g_warning ("%s line %d: No such preference \"%s\"", pf_path,
773 g_warning ("%s line %d: Incomplete preference", pf_path, pline);
779 * Given a string of the form "<pref name>:<pref value>", as might appear
780 * as an argument to a "-o" option, parse it and set the preference in
781 * question. Return an indication of whether it succeeded or failed
785 prefs_set_pref(char *prefarg)
791 * Set the counters of "mgcp.{tcp,udp}.port" entries we've
792 * seen to values that keep us from trying to interpret tham
793 * as "mgcp.{tcp,udp}.gateway_port" or "mgcp.{tcp,udp}.callagent_port",
794 * as, from the command line, we have no way of guessing which
795 * the user had in mind.
797 mgcp_tcp_port_count = -1;
798 mgcp_udp_port_count = -1;
800 colonp = strchr(prefarg, ':');
802 return PREFS_SET_SYNTAX_ERR;
808 * Skip over any white space (there probably won't be any, but
809 * as we allow it in the preferences file, we might as well
816 * Put the colon back, so if our caller uses, in an
817 * error message, the string they passed us, the message
821 return PREFS_SET_SYNTAX_ERR;
824 ret = set_pref(prefarg, p);
825 *colonp = ':'; /* put the colon back */
829 #define PRS_PRINT_FMT "print.format"
830 #define PRS_PRINT_DEST "print.destination"
831 #define PRS_PRINT_FILE "print.file"
832 #define PRS_PRINT_CMD "print.command"
833 #define PRS_COL_FMT "column.format"
834 #define PRS_STREAM_CL_FG "stream.client.fg"
835 #define PRS_STREAM_CL_BG "stream.client.bg"
836 #define PRS_STREAM_SR_FG "stream.server.fg"
837 #define PRS_STREAM_SR_BG "stream.server.bg"
838 #define PRS_GUI_SCROLLBAR_ON_RIGHT "gui.scrollbar_on_right"
839 #define PRS_GUI_PLIST_SEL_BROWSE "gui.packet_list_sel_browse"
840 #define PRS_GUI_PTREE_SEL_BROWSE "gui.protocol_tree_sel_browse"
841 #define PRS_GUI_PTREE_LINE_STYLE "gui.protocol_tree_line_style"
842 #define PRS_GUI_PTREE_EXPANDER_STYLE "gui.protocol_tree_expander_style"
843 #define PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE "gui.hex_dump_highlight_style"
844 #define PRS_GUI_FONT_NAME "gui.font_name"
845 #define PRS_GUI_MARKED_FG "gui.marked_frame.fg"
846 #define PRS_GUI_MARKED_BG "gui.marked_frame.bg"
848 #define RED_COMPONENT(x) ((((x) >> 16) & 0xff) * 65535 / 255)
849 #define GREEN_COMPONENT(x) ((((x) >> 8) & 0xff) * 65535 / 255)
850 #define BLUE_COMPONENT(x) (((x) & 0xff) * 65535 / 255)
852 static gchar *pr_formats[] = { "text", "postscript" };
853 static gchar *pr_dests[] = { "command", "file" };
856 set_pref(gchar *pref_name, gchar *value)
861 unsigned long int cval;
870 if (strcmp(pref_name, PRS_PRINT_FMT) == 0) {
871 if (strcmp(value, pr_formats[PR_FMT_TEXT]) == 0) {
872 prefs.pr_format = PR_FMT_TEXT;
873 } else if (strcmp(value, pr_formats[PR_FMT_PS]) == 0) {
874 prefs.pr_format = PR_FMT_PS;
876 return PREFS_SET_SYNTAX_ERR;
878 } else if (strcmp(pref_name, PRS_PRINT_DEST) == 0) {
879 if (strcmp(value, pr_dests[PR_DEST_CMD]) == 0) {
880 prefs.pr_dest = PR_DEST_CMD;
881 } else if (strcmp(value, pr_dests[PR_DEST_FILE]) == 0) {
882 prefs.pr_dest = PR_DEST_FILE;
884 return PREFS_SET_SYNTAX_ERR;
886 } else if (strcmp(pref_name, PRS_PRINT_FILE) == 0) {
887 if (prefs.pr_file) g_free(prefs.pr_file);
888 prefs.pr_file = g_strdup(value);
889 } else if (strcmp(pref_name, PRS_PRINT_CMD) == 0) {
890 if (prefs.pr_cmd) g_free(prefs.pr_cmd);
891 prefs.pr_cmd = g_strdup(value);
892 } else if (strcmp(pref_name, PRS_COL_FMT) == 0) {
893 if ((col_l = get_string_list(value)) && (g_list_length(col_l) % 2) == 0) {
894 free_col_info(&prefs);
895 prefs.col_list = NULL;
896 llen = g_list_length(col_l);
897 prefs.num_cols = llen / 2;
898 col_l = g_list_first(col_l);
900 cfmt = (fmt_data *) g_malloc(sizeof(fmt_data));
901 cfmt->title = g_strdup(col_l->data);
903 cfmt->fmt = g_strdup(col_l->data);
905 prefs.col_list = g_list_append(prefs.col_list, cfmt);
907 /* To do: else print some sort of error? */
909 clear_string_list(col_l);
910 } else if (strcmp(pref_name, PRS_STREAM_CL_FG) == 0) {
911 cval = strtoul(value, NULL, 16);
912 prefs.st_client_fg.pixel = 0;
913 prefs.st_client_fg.red = RED_COMPONENT(cval);
914 prefs.st_client_fg.green = GREEN_COMPONENT(cval);
915 prefs.st_client_fg.blue = BLUE_COMPONENT(cval);
916 } else if (strcmp(pref_name, PRS_STREAM_CL_BG) == 0) {
917 cval = strtoul(value, NULL, 16);
918 prefs.st_client_bg.pixel = 0;
919 prefs.st_client_bg.red = RED_COMPONENT(cval);
920 prefs.st_client_bg.green = GREEN_COMPONENT(cval);
921 prefs.st_client_bg.blue = BLUE_COMPONENT(cval);
922 } else if (strcmp(pref_name, PRS_STREAM_SR_FG) == 0) {
923 cval = strtoul(value, NULL, 16);
924 prefs.st_server_fg.pixel = 0;
925 prefs.st_server_fg.red = RED_COMPONENT(cval);
926 prefs.st_server_fg.green = GREEN_COMPONENT(cval);
927 prefs.st_server_fg.blue = BLUE_COMPONENT(cval);
928 } else if (strcmp(pref_name, PRS_STREAM_SR_BG) == 0) {
929 cval = strtoul(value, NULL, 16);
930 prefs.st_server_bg.pixel = 0;
931 prefs.st_server_bg.red = RED_COMPONENT(cval);
932 prefs.st_server_bg.green = GREEN_COMPONENT(cval);
933 prefs.st_server_bg.blue = BLUE_COMPONENT(cval);
934 } else if (strcmp(pref_name, PRS_GUI_SCROLLBAR_ON_RIGHT) == 0) {
935 if (strcmp(value, "TRUE") == 0) {
936 prefs.gui_scrollbar_on_right = TRUE;
939 prefs.gui_scrollbar_on_right = FALSE;
941 } else if (strcmp(pref_name, PRS_GUI_PLIST_SEL_BROWSE) == 0) {
942 if (strcmp(value, "TRUE") == 0) {
943 prefs.gui_plist_sel_browse = TRUE;
946 prefs.gui_plist_sel_browse = FALSE;
948 } else if (strcmp(pref_name, PRS_GUI_PTREE_SEL_BROWSE) == 0) {
949 if (strcmp(value, "TRUE") == 0) {
950 prefs.gui_ptree_sel_browse = TRUE;
953 prefs.gui_ptree_sel_browse = FALSE;
955 } else if (strcmp(pref_name, PRS_GUI_PTREE_LINE_STYLE) == 0) {
956 prefs.gui_ptree_line_style =
957 find_index_from_string_array(value, gui_ptree_line_style_text, 0);
958 } else if (strcmp(pref_name, PRS_GUI_PTREE_EXPANDER_STYLE) == 0) {
959 prefs.gui_ptree_expander_style =
960 find_index_from_string_array(value, gui_ptree_expander_style_text, 1);
961 } else if (strcmp(pref_name, PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE) == 0) {
962 prefs.gui_hex_dump_highlight_style =
963 find_index_from_string_array(value, gui_hex_dump_highlight_style_text, 1);
964 } else if (strcmp(pref_name, PRS_GUI_FONT_NAME) == 0) {
965 if (prefs.gui_font_name != NULL)
966 g_free(prefs.gui_font_name);
967 prefs.gui_font_name = g_strdup(value);
968 } else if (strcmp(pref_name, PRS_GUI_MARKED_FG) == 0) {
969 cval = strtoul(value, NULL, 16);
970 prefs.gui_marked_fg.pixel = 0;
971 prefs.gui_marked_fg.red = RED_COMPONENT(cval);
972 prefs.gui_marked_fg.green = GREEN_COMPONENT(cval);
973 prefs.gui_marked_fg.blue = BLUE_COMPONENT(cval);
974 } else if (strcmp(pref_name, PRS_GUI_MARKED_BG) == 0) {
975 cval = strtoul(value, NULL, 16);
976 prefs.gui_marked_bg.pixel = 0;
977 prefs.gui_marked_bg.red = RED_COMPONENT(cval);
978 prefs.gui_marked_bg.green = GREEN_COMPONENT(cval);
979 prefs.gui_marked_bg.blue = BLUE_COMPONENT(cval);
981 /* To which module does this preference belong? */
982 dotp = strchr(pref_name, '.');
984 return PREFS_SET_SYNTAX_ERR; /* no ".", so no module/name separator */
985 *dotp = '\0'; /* separate module and preference name */
986 module = find_module(pref_name);
989 * XXX - "Diameter" rather than "diameter" was used in earlier
990 * versions of Ethereal; if we didn't find the module, and its name
991 * was "Diameter", look for "diameter" instead.
993 if (module == NULL && strcmp(pref_name, "Diameter") == 0)
994 module = find_module("diameter");
995 *dotp = '.'; /* put the preference string back */
997 return PREFS_SET_NO_SUCH_PREF; /* no such module */
998 dotp++; /* skip past separator to preference name */
999 pref = find_preference(module, dotp);
1002 * XXX - "mgcp.display raw text toggle" and "mgcp.display dissect tree"
1003 * rather than "mgcp.display_raw_text" and "mgcp.display_dissect_tree"
1004 * were used in earlier versions of Ethereal; if we didn't find the
1005 * preference, it was an MGCP preference, and its name was
1006 * "display raw text toggle" or "display dissect tree", look for
1007 * "display_raw_text" or "display_dissect_tree" instead.
1009 * "mgcp.tcp.port" and "mgcp.udp.port" are harder to handle, as both
1010 * the gateway and callagent ports were given those names; we interpret
1011 * the first as "mgcp.{tcp,udp}.gateway_port" and the second as
1012 * "mgcp.{tcp,udp}.callagent_port", as that's the order in which
1013 * they were registered by the MCCP dissector and thus that's the
1014 * order in which they were written to the preferences file. (If
1015 * we're not reading the preferences file, but are handling stuff
1016 * from a "-o" command-line option, we have no clue which the user
1017 * had in mind - they should have used "mgcp.{tcp,udp}.gateway_port"
1018 * or "mgcp.{tcp,udp}.callagent_port" instead.)
1020 if (pref == NULL && strncmp(pref_name, "mgcp.", 5) == 0) {
1021 if (strcmp(dotp, "display raw text toggle") == 0)
1022 pref = find_preference(module, "display_raw_text");
1023 else if (strcmp(dotp, "display dissect tree") == 0)
1024 pref = find_preference(module, "display_dissect_tree");
1025 else if (strcmp(dotp, "tcp.port") == 0) {
1026 mgcp_tcp_port_count++;
1027 if (mgcp_tcp_port_count == 1) {
1028 /* It's the first one */
1029 pref = find_preference(module, "tcp.gateway_port");
1030 } else if (mgcp_tcp_port_count == 2) {
1031 /* It's the second one */
1032 pref = find_preference(module, "tcp.callagent_port");
1034 /* Otherwise it's from the command line, and we don't bother
1036 } else if (strcmp(dotp, "udp.port") == 0) {
1037 mgcp_udp_port_count++;
1038 if (mgcp_udp_port_count == 1) {
1039 /* It's the first one */
1040 pref = find_preference(module, "udp.gateway_port");
1041 } else if (mgcp_udp_port_count == 2) {
1042 /* It's the second one */
1043 pref = find_preference(module, "udp.callagent_port");
1045 /* Otherwise it's from the command line, and we don't bother
1050 return PREFS_SET_NO_SUCH_PREF; /* no such preference */
1052 switch (pref->type) {
1055 uval = strtoul(value, &p, pref->info.base);
1056 if (p == value || *p != '\0')
1057 return PREFS_SET_SYNTAX_ERR; /* number was bad */
1058 if (*pref->varp.uint != uval) {
1059 module->prefs_changed = TRUE;
1060 *pref->varp.uint = uval;
1065 /* XXX - give an error if it's neither "true" nor "false"? */
1066 if (strcasecmp(value, "true") == 0)
1070 if (*pref->varp.bool != bval) {
1071 module->prefs_changed = TRUE;
1072 *pref->varp.bool = bval;
1077 /* XXX - give an error if it doesn't match? */
1078 enum_val = find_val_for_string(value,
1079 pref->info.enum_info.enumvals, 1);
1080 if (*pref->varp.enump != enum_val) {
1081 module->prefs_changed = TRUE;
1082 *pref->varp.enump = enum_val;
1087 if (*pref->varp.string == NULL || strcmp(*pref->varp.string, value) != 0) {
1088 module->prefs_changed = TRUE;
1089 if (*pref->varp.string != NULL)
1090 g_free(*pref->varp.string);
1091 *pref->varp.string = g_strdup(value);
1097 return PREFS_SET_OK;
1106 * Write out a single preference.
1109 write_pref(gpointer data, gpointer user_data)
1111 pref_t *pref = data;
1112 write_pref_arg_t *arg = user_data;
1113 const enum_val_t *enum_valp;
1114 const char *val_string;
1116 fprintf(arg->pf, "\n# %s\n", pref->description);
1118 switch (pref->type) {
1121 switch (pref->info.base) {
1124 fprintf(arg->pf, "# A decimal number.\n");
1125 fprintf(arg->pf, "%s.%s: %u\n", arg->module->name,
1126 pref->name, *pref->varp.uint);
1130 fprintf(arg->pf, "# An octal number.\n");
1131 fprintf(arg->pf, "%s.%s: %#o\n", arg->module->name,
1132 pref->name, *pref->varp.uint);
1136 fprintf(arg->pf, "# A hexadecimal number.\n");
1137 fprintf(arg->pf, "%s.%s: %#x\n", arg->module->name,
1138 pref->name, *pref->varp.uint);
1144 fprintf(arg->pf, "# TRUE or FALSE (case-insensitive).\n");
1145 fprintf(arg->pf, "%s.%s: %s\n", arg->module->name, pref->name,
1146 *pref->varp.bool ? "TRUE" : "FALSE");
1150 fprintf(arg->pf, "# One of: ");
1151 enum_valp = pref->info.enum_info.enumvals;
1153 while (enum_valp->name != NULL) {
1154 if (enum_valp->value == *pref->varp.enump)
1155 val_string = enum_valp->name;
1156 fprintf(arg->pf, "%s", enum_valp->name);
1158 if (enum_valp->name == NULL)
1159 fprintf(arg->pf, "\n");
1161 fprintf(arg->pf, ", ");
1163 fprintf(arg->pf, "# (case-insensitive).\n");
1164 fprintf(arg->pf, "%s.%s: %s\n", arg->module->name, pref->name,
1169 fprintf(arg->pf, "# A string.\n");
1170 fprintf(arg->pf, "%s.%s: %s\n", arg->module->name, pref->name,
1171 *pref->varp.string);
1177 write_module_prefs(gpointer data, gpointer user_data)
1179 write_pref_arg_t arg;
1183 g_list_foreach(arg.module->prefs, write_pref, &arg);
1186 /* Write out "prefs" to the user's preferences file, and return 0.
1188 If we got an error, stuff a pointer to the path of the preferences file
1189 into "*pf_path_return", and return the errno. */
1191 write_prefs(char **pf_path_return)
1197 * - Split output lines longer than MAX_VAL_LEN
1198 * - Create a function for the preference directory check/creation
1199 * so that duplication can be avoided with filter.c
1203 pf_path = (gchar *) g_malloc(strlen(get_home_dir()) + strlen(PF_DIR) +
1204 strlen(PF_NAME) + 4);
1207 sprintf(pf_path, "%s/%s", get_home_dir(), PF_DIR);
1208 if (stat(pf_path, &s_buf) != 0)
1212 mkdir(pf_path, 0755);
1215 sprintf(pf_path, "%s/%s/%s", get_home_dir(), PF_DIR, PF_NAME);
1216 if ((pf = fopen(pf_path, "w")) == NULL) {
1217 *pf_path_return = pf_path;
1221 fputs("# Configuration file for Ethereal " VERSION ".\n"
1223 "# This file is regenerated each time preferences are saved within\n"
1224 "# Ethereal. Making manual changes should be safe, however.\n"
1226 "######## Printing ########\n"
1229 fprintf (pf, "# Can be one of \"text\" or \"postscript\".\n"
1230 "print.format: %s\n\n", pr_formats[prefs.pr_format]);
1232 fprintf (pf, "# Can be one of \"command\" or \"file\".\n"
1233 "print.destination: %s\n\n", pr_dests[prefs.pr_dest]);
1235 fprintf (pf, "# This is the file that gets written to when the "
1236 "destination is set to \"file\"\n"
1237 "%s: %s\n\n", PRS_PRINT_FILE, prefs.pr_file);
1239 fprintf (pf, "# Output gets piped to this command when the destination "
1240 "is set to \"command\"\n"
1241 "%s: %s\n\n", PRS_PRINT_CMD, prefs.pr_cmd);
1243 fprintf (pf, "# Packet list column format. Each pair of strings consists "
1244 "of a column title \n# and its format.\n"
1245 "%s: %s\n\n", PRS_COL_FMT, col_format_to_pref_str());
1247 fprintf (pf, "# TCP stream window color preferences. Each value is a six "
1248 "digit hexadecimal value in the form rrggbb.\n");
1249 fprintf (pf, "%s: %02x%02x%02x\n", PRS_STREAM_CL_FG,
1250 (prefs.st_client_fg.red * 255 / 65535),
1251 (prefs.st_client_fg.green * 255 / 65535),
1252 (prefs.st_client_fg.blue * 255 / 65535));
1253 fprintf (pf, "%s: %02x%02x%02x\n", PRS_STREAM_CL_BG,
1254 (prefs.st_client_bg.red * 255 / 65535),
1255 (prefs.st_client_bg.green * 255 / 65535),
1256 (prefs.st_client_bg.blue * 255 / 65535));
1257 fprintf (pf, "%s: %02x%02x%02x\n", PRS_STREAM_SR_FG,
1258 (prefs.st_server_fg.red * 255 / 65535),
1259 (prefs.st_server_fg.green * 255 / 65535),
1260 (prefs.st_server_fg.blue * 255 / 65535));
1261 fprintf (pf, "%s: %02x%02x%02x\n", PRS_STREAM_SR_BG,
1262 (prefs.st_server_bg.red * 255 / 65535),
1263 (prefs.st_server_bg.green * 255 / 65535),
1264 (prefs.st_server_bg.blue * 255 / 65535));
1266 fprintf(pf, "\n# Vertical scrollbars should be on right side? TRUE/FALSE\n");
1267 fprintf(pf, PRS_GUI_SCROLLBAR_ON_RIGHT ": %s\n",
1268 prefs.gui_scrollbar_on_right == TRUE ? "TRUE" : "FALSE");
1270 fprintf(pf, "\n# Packet-list selection bar can be used to browse w/o selecting? TRUE/FALSE\n");
1271 fprintf(pf, PRS_GUI_PLIST_SEL_BROWSE ": %s\n",
1272 prefs.gui_plist_sel_browse == TRUE ? "TRUE" : "FALSE");
1274 fprintf(pf, "\n# Protocol-tree selection bar can be used to browse w/o selecting? TRUE/FALSE\n");
1275 fprintf(pf, PRS_GUI_PTREE_SEL_BROWSE ": %s\n",
1276 prefs.gui_ptree_sel_browse == TRUE ? "TRUE" : "FALSE");
1278 fprintf(pf, "\n# Protocol-tree line style. One of: NONE, SOLID, DOTTED, TABBED\n");
1279 fprintf(pf, PRS_GUI_PTREE_LINE_STYLE ": %s\n",
1280 gui_ptree_line_style_text[prefs.gui_ptree_line_style]);
1282 fprintf(pf, "\n# Protocol-tree expander style. One of: NONE, SQUARE, TRIANGLE, CIRCULAR\n");
1283 fprintf(pf, PRS_GUI_PTREE_EXPANDER_STYLE ": %s\n",
1284 gui_ptree_expander_style_text[prefs.gui_ptree_expander_style]);
1286 fprintf(pf, "\n# Hex dump highlight style. One of: BOLD, INVERSE\n");
1287 fprintf(pf, PRS_GUI_HEX_DUMP_HIGHLIGHT_STYLE ": %s\n",
1288 gui_hex_dump_highlight_style_text[prefs.gui_hex_dump_highlight_style]);
1290 fprintf(pf, "\n# Font name for packet list, protocol tree, and hex dump panes.\n");
1291 fprintf(pf, PRS_GUI_FONT_NAME ": %s\n", prefs.gui_font_name);
1293 fprintf (pf, "\n# Color preferences for a marked frame. Each value is a six "
1294 "digit hexadecimal value in the form rrggbb.\n");
1295 fprintf (pf, "%s: %02x%02x%02x\n", PRS_GUI_MARKED_FG,
1296 (prefs.gui_marked_fg.red * 255 / 65535),
1297 (prefs.gui_marked_fg.green * 255 / 65535),
1298 (prefs.gui_marked_fg.blue * 255 / 65535));
1299 fprintf (pf, "%s: %02x%02x%02x\n", PRS_GUI_MARKED_BG,
1300 (prefs.gui_marked_bg.red * 255 / 65535),
1301 (prefs.gui_marked_bg.green * 255 / 65535),
1302 (prefs.gui_marked_bg.blue * 255 / 65535));
1304 g_list_foreach(modules, write_module_prefs, pf);
1308 /* XXX - catch I/O errors (e.g. "ran out of disk space") and return
1309 an error indication, or maybe write to a new preferences file and
1310 rename that file on top of the old one only if there are not I/O
1315 /* Copy a set of preferences. */
1317 copy_prefs(e_prefs *dest, e_prefs *src)
1319 fmt_data *src_cfmt, *dest_cfmt;
1322 dest->pr_format = src->pr_format;
1323 dest->pr_dest = src->pr_dest;
1324 dest->pr_file = g_strdup(src->pr_file);
1325 dest->pr_cmd = g_strdup(src->pr_cmd);
1326 dest->col_list = NULL;
1327 for (entry = src->col_list; entry != NULL; entry = g_list_next(entry)) {
1328 src_cfmt = entry->data;
1329 dest_cfmt = (fmt_data *) g_malloc(sizeof(fmt_data));
1330 dest_cfmt->title = g_strdup(src_cfmt->title);
1331 dest_cfmt->fmt = g_strdup(src_cfmt->fmt);
1332 dest->col_list = g_list_append(dest->col_list, dest_cfmt);
1334 dest->num_cols = src->num_cols;
1335 dest->st_client_fg = src->st_client_fg;
1336 dest->st_client_bg = src->st_client_bg;
1337 dest->st_server_fg = src->st_server_fg;
1338 dest->st_server_bg = src->st_server_bg;
1339 dest->gui_scrollbar_on_right = src->gui_scrollbar_on_right;
1340 dest->gui_plist_sel_browse = src->gui_plist_sel_browse;
1341 dest->gui_ptree_sel_browse = src->gui_ptree_sel_browse;
1342 dest->gui_ptree_line_style = src->gui_ptree_line_style;
1343 dest->gui_ptree_expander_style = src->gui_ptree_expander_style;
1344 dest->gui_hex_dump_highlight_style = src->gui_hex_dump_highlight_style;
1345 dest->gui_font_name = g_strdup(src->gui_font_name);
1346 dest->gui_marked_fg = src->gui_marked_fg;
1347 dest->gui_marked_bg = src->gui_marked_bg;
1350 /* Free a set of preferences. */
1352 free_prefs(e_prefs *pr)
1354 if (pr->pr_file != NULL) {
1355 g_free(pr->pr_file);
1358 if (pr->pr_cmd != NULL) {
1363 if (pr->gui_font_name != NULL) {
1364 g_free(pr->gui_font_name);
1365 pr->gui_font_name = NULL;
1370 free_col_info(e_prefs *pr)
1374 while (pr->col_list != NULL) {
1375 cfmt = pr->col_list->data;
1376 g_free(cfmt->title);
1379 pr->col_list = g_list_remove_link(pr->col_list, pr->col_list);
1381 g_list_free(pr->col_list);
1382 pr->col_list = NULL;