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/* language.c
* Language "preference" handling routines
* Copyright 2014, Michal Labedzki for Tieto Corporation
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <stdlib.h>
#include <errno.h>
#include <epan/prefs.h>
#include <epan/prefs-int.h>
#include <wsutil/filesystem.h>
#include <wsutil/file_util.h>
#include "ui/language.h"
#include "ui/simple_dialog.h"
#define LANGUAGE_FILE_NAME "language"
#define LANGUAGE_PREF_LANGUAGE "language"
char *language = NULL;
/* set one user's recent common file key/value pair */
static prefs_set_pref_e
read_language_pref(gchar *key, const gchar *value,
void *private_data _U_, gboolean return_range_errors _U_)
{
if (strcmp(key, LANGUAGE_PREF_LANGUAGE) == 0) {
g_free(language);
/*
* For backwards compatibility, treat "auto" as meaning "use the
* system language".
*
* To handle the old buggy code that didn't check whether "language"
* was null before trying to print it, treat "(null)" - which many,
* but *NOT* all, system printfs print for a null pointer (some
* printfs, such as the one in Solaris, *crash* with %s and a null
* pointer) - as meaning "use the system language".
*/
if (!value || !*value || strcmp(value, "auto") == 0 ||
strcmp(value, "(null)") == 0)
language = g_strdup(USE_SYSTEM_LANGUAGE);
else
language = g_strdup(value);
}
return PREFS_SET_OK;
}
void
read_language_prefs(void)
{
char *rf_path;
FILE *rf;
rf_path = get_persconffile_path(LANGUAGE_FILE_NAME, FALSE);
if ((rf = ws_fopen(rf_path, "r")) != NULL) {
read_prefs_file(rf_path, rf, read_language_pref, NULL);
fclose(rf);
}
g_free(rf_path);
}
gboolean
write_language_prefs(void)
{
char *pf_dir_path;
char *rf_path;
FILE *rf;
/* To do:
* - Split output lines longer than MAX_VAL_LEN
* - Create a function for the preference directory check/creation
* so that duplication can be avoided with filter.c
*/
/* Create the directory that holds personal configuration files, if
necessary. */
if (create_persconffile_dir(&pf_dir_path) == -1) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Can't create directory\n\"%s\"\nfor language file: %s.", pf_dir_path,
g_strerror(errno));
g_free(pf_dir_path);
return FALSE;
}
rf_path = get_persconffile_path(LANGUAGE_FILE_NAME, FALSE);
if ((rf = ws_fopen(rf_path, "w")) == NULL) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
"Can't open recent file\n\"%s\": %s.", rf_path,
g_strerror(errno));
g_free(rf_path);
return FALSE;
}
g_free(rf_path);
fputs("# Language settings file for Wireshark " VERSION ".\n"
"#\n"
"# This file is regenerated each time Wireshark is quit.\n"
"# So be careful, if you want to make manual changes here.\n"
"\n", rf);
fprintf(rf, LANGUAGE_PREF_LANGUAGE ": %s\n", language ? language : USE_SYSTEM_LANGUAGE);
fclose(rf);
return TRUE;
}
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