2007-01-28 10:31:32 +00:00
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/*
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* uat.c
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*
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2007-01-29 04:47:58 +00:00
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* $Id$
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*
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2007-01-28 10:31:32 +00:00
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* User Accessible Tables
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* Mantain an array of user accessible data strucures
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*
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2007-01-29 04:47:58 +00:00
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* (c) 2007, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2001 Gerald Combs
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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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2007-01-28 10:31:32 +00:00
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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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include <glib.h>
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#include <epan/emem.h>
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#include <epan/filesystem.h>
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#include "uat-int.h"
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static GPtrArray* all_uats = NULL;
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void uat_init(void) {
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all_uats = g_ptr_array_new();
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}
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uat_t* uat_start(const char* name,
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size_t size,
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char* filename,
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void** data_ptr,
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guint* num_items_ptr,
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uat_copy_cb_t copy_cb,
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uat_update_cb_t update_cb,
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uat_free_cb_t free_cb) {
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uat_t* uat = g_malloc(sizeof(uat_t));
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2007-01-29 10:23:38 +00:00
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if (!all_uats)
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all_uats = g_ptr_array_new();
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2007-01-28 10:31:32 +00:00
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g_ptr_array_add(all_uats,uat);
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g_assert(name && size && filename && data_ptr && num_items_ptr);
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uat->name = g_strdup(name);
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uat->record_size = size;
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uat->filename = g_strdup(filename);
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uat->user_ptr = data_ptr;
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uat->nrows_p = num_items_ptr;
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uat->copy_cb = copy_cb;
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uat->update_cb = update_cb;
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uat->free_cb = free_cb;
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uat->fields = NULL;
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uat->ncols = 0;
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uat->user_data = g_array_new(FALSE,FALSE,uat->record_size);
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uat->finalized = FALSE;
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uat->rep = NULL;
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uat->free_rep = NULL;
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return uat;
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}
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void uat_add_field(uat_t* uat,
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const char* name,
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uat_text_mode_t mode,
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uat_fld_chk_cb_t chk_cb,
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uat_fld_set_cb_t set_cb,
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uat_fld_tostr_cb_t tostr_cb) {
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uat_fld_t* f = g_malloc(sizeof(uat_fld_t));
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g_assert( name && set_cb && tostr_cb && (! uat->finalized )
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&& (mode == PT_TXTMOD_STRING || mode == PT_TXTMOD_HEXBYTES) );
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f->name = g_strdup(name);
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f->mode = mode;
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f->chk_cb = chk_cb;
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f->set_cb = set_cb;
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f->tostr_cb = tostr_cb;
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f->rep = NULL;
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f->free_rep = NULL;
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f->colnum = uat->ncols;
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f->next = NULL;
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uat->ncols++;
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if (uat->fields) {
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uat_fld_t* c;
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for (c = uat->fields; c->next; c = c->next) ;
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c->next = f;
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} else {
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uat->fields = f;
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}
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}
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void uat_finalize(uat_t* uat) {
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UAT_UPDATE(uat);
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uat->finalized = TRUE;
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}
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uat_t* uat_new(const char* uat_name,
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size_t size,
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char* filename,
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void** data_ptr,
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guint* numitems_ptr,
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uat_copy_cb_t copy_cb,
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uat_update_cb_t update_cb,
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uat_free_cb_t free_cb,
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2007-01-29 04:47:58 +00:00
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char** error,
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2007-01-28 10:31:32 +00:00
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...) {
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uat_t* uat = uat_start(uat_name, size, filename, data_ptr, numitems_ptr, copy_cb, update_cb, free_cb);
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va_list ap;
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char* name;
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uat_text_mode_t mode;
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uat_fld_chk_cb_t chk_cb;
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uat_fld_set_cb_t set_cb;
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uat_fld_tostr_cb_t tostr_cb;
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2007-01-29 04:47:58 +00:00
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va_start(ap,error);
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2007-01-28 10:31:32 +00:00
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name = va_arg(ap,char*);
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do {
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mode = va_arg(ap,uat_text_mode_t);
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chk_cb = va_arg(ap,uat_fld_chk_cb_t);
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set_cb = va_arg(ap,uat_fld_set_cb_t);
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tostr_cb = va_arg(ap,uat_fld_tostr_cb_t);
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uat_add_field(uat, name, mode, chk_cb, set_cb, tostr_cb);
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name = va_arg(ap,char*);
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} while (name);
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va_end(ap);
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uat_finalize(uat);
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2007-01-29 04:47:58 +00:00
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uat_load(uat,error);
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2007-01-28 10:31:32 +00:00
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return uat;
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}
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void* uat_add_record(uat_t* uat, const void* data) {
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void* rec;
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g_assert( uat->finalized );
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g_array_append_vals (uat->user_data, data, 1);
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rec = uat->user_data->data + (uat->record_size * (uat->user_data->len-1));
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if (uat->copy_cb) {
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uat->copy_cb(rec, data, uat->record_size);
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}
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UAT_UPDATE(uat);
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return rec;
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}
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void uat_remove_record_idx(uat_t* uat, guint idx) {
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g_assert( uat->finalized && idx < uat->user_data->len);
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g_array_remove_index(uat->user_data, idx);
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UAT_UPDATE(uat);
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}
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gchar* uat_get_actual_filename(uat_t* uat, gboolean for_writing) {
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gchar* pers_fname = get_persconffile_path(uat->filename,for_writing);
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2007-01-29 14:11:44 +00:00
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if (! (file_exists(pers_fname) || for_writing) ) {
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2007-01-28 10:31:32 +00:00
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gchar* data_fname = get_datafile_path(uat->filename);
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if (file_exists(data_fname)) {
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return data_fname;
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}
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}
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return pers_fname;
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}
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static void putfld(FILE* fp, void* rec, uat_fld_t* f) {
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guint fld_len;
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char* fld_ptr;
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f->tostr_cb(rec,&fld_ptr,&fld_len);
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switch(f->mode){
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case PT_TXTMOD_STRING: {
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guint i;
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putc('"',fp);
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for(i=0;i<fld_len;i++) {
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char c = fld_ptr[i];
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if (c == '"') {
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fputs("\134\042",fp);
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} else if (isprint(c)) {
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putc(c,fp);
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} else {
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fprintf(fp,"\\x%.2x",c);
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}
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}
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putc('"',fp);
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return;
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}
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case PT_TXTMOD_HEXBYTES: {
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guint i;
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for(i=0;i<fld_len;i++) {
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fprintf(fp,"%.2x",fld_ptr[i]);
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}
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return;
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}
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default:
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g_assert_not_reached();
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}
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}
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gboolean uat_save(uat_t* uat, char** error) {
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guint i;
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gchar* fname = uat_get_actual_filename(uat,TRUE);
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FILE* fp = fopen(fname,"w");
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if (!fp) {
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*error = ep_strdup_printf("uat_save: error opening '%s': %s",fname,strerror(errno));
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return FALSE;
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}
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*error = NULL;
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2007-01-29 14:11:44 +00:00
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for ( i = 0 ; i < uat->user_data->len ; i++ ) {
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void* rec = uat->user_data->data + (uat->record_size * i);
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2007-01-28 10:31:32 +00:00
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uat_fld_t* f;
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f = uat->fields;
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putfld(fp, rec, f);
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while (( f = f->next )) {
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fputs(",",fp);
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putfld(fp, rec, f);
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}
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fputs("\n",fp);
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}
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fclose(fp);
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return TRUE;
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}
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void uat_destroy(uat_t* uat) {
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g_ptr_array_remove(all_uats,uat);
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}
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void* uat_dup(uat_t* uat, guint* len_p) {
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guint size = (uat->record_size * uat->user_data->len);
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*len_p = size;
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return size ? g_memdup(uat->user_data->data,size) : NULL ;
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}
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void* uat_se_dup(uat_t* uat, guint* len_p) {
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guint size = (uat->record_size * uat->user_data->len);
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*len_p = size;
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return size ? se_memdup(uat->user_data->data,size) : NULL ;
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}
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void uat_cleanup(void) {
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while( all_uats->len ) {
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uat_destroy((uat_t*)all_uats->pdata);
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}
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g_ptr_array_free(all_uats,TRUE);
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}
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