forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
--enable-extra-gcc-checks set. If we turn on -pedantic, try turning on -Wno-long-long as well, so that it's not *so* pedantic that it rejects the 64-bit integral data types that we explicitly require. Constify a bunch of stuff, and make some other changes, to get rid of warnings. Clean up some indentation. svn path=/trunk/; revision=21526
571 lines
12 KiB
C
571 lines
12 KiB
C
/*
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* uat.c
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*
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* $Id$
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*
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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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* (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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*/
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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/report_err.h>
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#include <epan/filesystem.h>
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#include <epan/packet.h>
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#include <epan/range.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_new(const char* name,
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size_t size,
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const char* filename,
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void** data_ptr,
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guint* numitems_ptr,
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const char* category,
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const char* help,
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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_field_t* flds_array) {
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uat_t* uat = g_malloc(sizeof(uat_t));
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guint i;
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if (!all_uats)
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all_uats = g_ptr_array_new();
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g_ptr_array_add(all_uats,uat);
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g_assert(name && size && filename && data_ptr && numitems_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 = numitems_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 = flds_array;
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uat->user_data = g_array_new(FALSE,FALSE,uat->record_size);
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uat->changed = FALSE;
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uat->rep = NULL;
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uat->free_rep = NULL;
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uat->help = help;
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uat->category = category;
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for (i=0;flds_array[i].name;i++) {
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fld_data_t* f = g_malloc(sizeof(fld_data_t));
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f->colnum = i+1;
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f->rep = NULL;
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f->free_rep = NULL;
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flds_array[i].priv = f;
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}
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uat->ncols = i;
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*data_ptr = NULL;
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*numitems_ptr = 0;
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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_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_swap(uat_t* uat, guint a, guint b) {
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guint s = uat->record_size;
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void* tmp = ep_alloc(s);
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g_assert( a < uat->user_data->len && b < uat->user_data->len );
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if (a == b) return;
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memcpy(tmp, UAT_INDEX_PTR(uat,a), s);
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memcpy(UAT_INDEX_PTR(uat,a), UAT_INDEX_PTR(uat,b), s);
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memcpy(UAT_INDEX_PTR(uat,b), tmp, s);
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}
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void uat_remove_record_idx(uat_t* uat, guint idx) {
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g_assert( idx < uat->user_data->len );
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if (uat->free_cb) {
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uat->free_cb(UAT_INDEX_PTR(uat,idx));
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}
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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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if (! for_writing ) {
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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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if ((! file_exists(pers_fname) ) && (! for_writing ) ) {
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return NULL;
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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_field_t* f) {
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guint fld_len;
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const char* fld_ptr;
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f->cb.tostr(rec,&fld_ptr,&fld_len,f->cbdata.tostr,f->fld_data);
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switch(f->mode){
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case PT_TXTMOD_ENUM:
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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 == '"' || c == '\\' || ! isprint((int)c) ) {
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fprintf(fp,"\\x%.2x",c);
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} else {
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putc(c,fp);
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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",((guint8*)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;
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if (! fname ) return FALSE;
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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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fprintf(fp,"# This file is automatically generated, DO NOT MODIFY.\n");
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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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uat_field_t* f;
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guint j;
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f = uat->fields;
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for( j=0 ; j < uat->ncols ; j++ ) {
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putfld(fp, rec, &(f[j]));
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fputs((j == uat->ncols - 1) ? "\n" : "," ,fp);
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}
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}
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fclose(fp);
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uat->changed = FALSE;
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return TRUE;
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}
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void uat_destroy(uat_t* uat) {
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/* XXX still missing a destructor */
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g_ptr_array_remove(all_uats,uat);
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}
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void uat_clear(uat_t* uat) {
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guint i;
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for ( i = 0 ; i < uat->user_data->len ; i++ ) {
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if (uat->free_cb) {
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uat->free_cb(UAT_INDEX_PTR(uat,i));
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}
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}
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g_array_set_size(uat->user_data,0);
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*((uat)->user_ptr) = NULL;
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*((uat)->nrows_p) = 0;
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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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void uat_foreach_table(uat_cb_t cb,void* user_data) {
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guint i;
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for (i=0; i < all_uats->len; i++)
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cb(g_ptr_array_index(all_uats,i), user_data);
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}
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void uat_load_all(void) {
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guint i;
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gchar* err;
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for (i=0; i < all_uats->len; i++) {
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uat_t* u = g_ptr_array_index(all_uats,i);
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err = NULL;
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uat_load(u, &err);
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if (err) {
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report_failure("Error loading table '%s': %s",u->name,err);
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}
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}
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}
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gboolean uat_fld_chk_str(void* u1 _U_, const char* strptr, unsigned len _U_, void* u2 _U_, void* u3 _U_, const char** err) {
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if (strptr == NULL) {
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*err = "NULL pointer";
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return FALSE;
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}
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*err = NULL;
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return TRUE;
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}
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gboolean uat_fld_chk_proto(void* u1 _U_, const char* strptr, unsigned len, void* u2 _U_, void* u3 _U_, const char** err) {
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if (len) {
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char* name = ep_strndup(strptr,len);
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g_strdown(name);
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g_strchug(name);
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if (find_dissector(name)) {
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*err = NULL;
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return TRUE;
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} else {
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*err = "dissector not found";
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return FALSE;
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}
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} else {
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*err = NULL;
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return TRUE;
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}
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}
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gboolean uat_fld_chk_num_dec(void* u1 _U_, const char* strptr, unsigned len, void* u2 _U_, void* u3 _U_, const char** err) {
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char* str = ep_strndup(strptr,len);
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long i = strtol(str,&str,10);
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if ( ( i == 0) && (errno == ERANGE || errno == EINVAL) ) {
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*err = strerror(errno);
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return FALSE;
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}
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*err = NULL;
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return TRUE;
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}
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gboolean uat_fld_chk_num_hex(void* u1 _U_, const char* strptr, unsigned len, void* u2 _U_, void* u3 _U_, const char** err) {
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char* str = ep_strndup(strptr,len);
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long i = strtol(str,&str,16);
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if ( ( i == 0) && (errno == ERANGE || errno == EINVAL) ) {
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*err = strerror(errno);
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return FALSE;
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}
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*err = NULL;
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return TRUE;
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}
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gboolean uat_fld_chk_enum(void* u1 _U_, const char* strptr, unsigned len, void* v, void* u3 _U_, const char** err) {
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char* str = ep_strndup(strptr,len);
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guint i;
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value_string* vs = v;
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for(i=0;vs[i].strptr;i++) {
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if (g_str_equal(vs[i].strptr,str)) {
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*err = NULL;
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return TRUE;
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}
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}
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*err = ep_strdup_printf("invalid value: %s",str);
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return FALSE;
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}
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gboolean uat_fld_chk_range(void* u1 _U_, const char* strptr, unsigned len, void* v _U_, void* u3, const char** err) {
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char* str = ep_strndup(strptr,len);
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range_t* r = NULL;
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convert_ret_t ret = range_convert_str(&r, str,GPOINTER_TO_UINT(u3));
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switch ( ret ) {
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case CVT_NO_ERROR:
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*err = NULL;
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return TRUE;
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case CVT_SYNTAX_ERROR:
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*err = ep_strdup_printf("syntax error in range: %s",str);
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return FALSE;
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case CVT_NUMBER_TOO_BIG:
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*err = ep_strdup_printf("value too large in range: '%s' (max = %u)",str,GPOINTER_TO_UINT(u3));
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return FALSE;
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default:
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*err = "This should not happen, it is a bug in wireshark! please report to wireshark-dev@wireshark.org";
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return FALSE;
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}
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}
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static int xton(char d) {
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switch(d) {
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case '0': return 0;
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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case 'a': case 'A': return 10;
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case 'b': case 'B': return 11;
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case 'c': case 'C': return 12;
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case 'd': case 'D': return 13;
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case 'e': case 'E': return 14;
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case 'f': case 'F': return 15;
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default: return -1;
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}
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}
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char* uat_unbinstring(const char* si, guint in_len, guint* len_p) {
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guint8* buf;
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guint len = in_len/2;
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int i = 0;
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if (in_len%2) {
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return NULL;
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}
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buf= g_malloc(len);
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*len_p = len;
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while(in_len) {
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int d1 = xton(*(si++));
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int d0 = xton(*(si++));
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buf[i++] = (d1 * 16) + d0;
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in_len -= 2;
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}
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return (void*)buf;
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}
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char* uat_unesc(const char* si, guint in_len, guint* len_p) {
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char* buf = g_malloc0(in_len);
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char* p = buf;
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guint len = 0;
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const char* s;
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const char* in_end = si+in_len;
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for (s = (void*)si; s < in_end; s++) {
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switch(*s) {
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case '\\':
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switch(*(++s)) {
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case 'a': *(p++) = '\a'; len++; break;
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case 'b': *(p++) = '\b'; len++; break;
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case 'e': *(p++) = '\033' /* '\e' is non ANSI-C */; len++; printf("."); break;
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case 'f': *(p++) = '\f'; len++; break;
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case 'n': *(p++) = '\n'; len++; break;
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case 'r': *(p++) = '\r'; len++; break;
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case 't': *(p++) = '\t'; len++; break;
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case 'v': *(p++) = '\v'; len++; break;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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{
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int c0 = 0;
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int c1 = 0;
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int c2 = 0;
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int c = 0;
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c0 = (*s) - '0';
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if ( s[1] >= '0' && s[1] <= '7' ) {
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c1 = c0;
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c0 = (*++s) - '0';
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if ( s[1] >= '0' && s[1] <= '7' ) {
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c2 = c1;
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c1 = c0;
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c0 = (*++s) - '0';
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}
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}
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c = (64 * c2) + (8 * c1) + c0;
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*(p++) = (char) (c > 255 ? 255 : c);
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len++;
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break;
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}
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case 'x':
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{
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char c1 = *(s+1);
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char c0 = *(s+2);
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if (isxdigit((int)c1) && isxdigit((int)c0)) {
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*(p++) = (xton(c1) * 0x10) + xton(c0);
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s += 2;
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} else {
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*(p++) = *s;
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}
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len++;
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break;
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}
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default:
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*p++ = *s;
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break;
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}
|
|
break;
|
|
default:
|
|
*(p++) = *s;
|
|
len++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (len_p) *len_p = len;
|
|
return buf;
|
|
}
|
|
|
|
char* uat_undquote(const char* si, guint in_len, guint* len_p) {
|
|
return uat_unesc(si+1,in_len-2,len_p);
|
|
}
|
|
|
|
|
|
char* uat_esc(const char* buf, guint len) {
|
|
const guint8* end = ((guint8*)buf)+len;
|
|
char* out = ep_alloc0((4*len)+1);
|
|
const guint8* b;
|
|
char* s = out;
|
|
|
|
for (b = (void*)buf; b < end; b++) {
|
|
if (isprint(*b) ) {
|
|
*(s++) = (*b);
|
|
} else {
|
|
g_snprintf(s,5,"\\x%.2x",((guint)*b));
|
|
s+=4;
|
|
}
|
|
}
|
|
|
|
return out;
|
|
|
|
}
|
|
|
|
CHK_STR_IS_DEF(isprint)
|
|
CHK_STR_IS_DEF(isalpha)
|
|
CHK_STR_IS_DEF(isalnum)
|
|
CHK_STR_IS_DEF(isdigit)
|
|
CHK_STR_IS_DEF(isxdigit)
|
|
|