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/*
File: phcfg.c
Copyright (C) 2008 Christophe GRENIER <grenier@cgsecurity.org>
This software is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h> /* getuid */
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include <stdio.h>
#include <errno.h>
#include "types.h"
#include "common.h"
#include "filegen.h"
#include "log.h"
#include "phcfg.h"
void reset_array_file_enable(file_enable_t *files_enable)
{
file_enable_t *file_enable;
for(file_enable=files_enable;file_enable->file_hint!=NULL;file_enable++)
file_enable->enable=file_enable->file_hint->enable_by_default;
}
/*
PhotoRec should try to load the configuration from
- $HOME/.photorec.cfg
- $SBIN/photorec.cfg
PhotoRec stores the configuration in
- $HOME/.photorec.cfg
- DOS: $SBIN/photorec.cfg
*/
#define WIN_PHOTOREC_CFG "\\photorec.cfg"
#define DOT_PHOTOREC_CFG "/.photorec.cfg"
#define PHOTOREC_CFG "photorec.cfg"
static FILE *file_options_save_aux(void)
{
char *filename=NULL;
#if defined(__CYGWIN__) || defined(__MINGW32__)
{
char *path;
path = getenv("USERPROFILE");
if (path == NULL)
path = getenv("HOMEPATH");
if(path!=NULL)
{
filename=(char*)MALLOC(strlen(path)+strlen(WIN_PHOTOREC_CFG)+1);
strcpy(filename, path);
strcat(filename, WIN_PHOTOREC_CFG);
}
}
#endif
#if !defined(DJGPP) && !defined(DISABLED_FOR_FRAMAC)
if(filename==NULL)
{
char *home;
home = getenv("HOME");
if (home != NULL)
{
filename=(char*)MALLOC(strlen(home)+strlen(DOT_PHOTOREC_CFG)+1);
strcpy(filename, home);
strcat(filename, DOT_PHOTOREC_CFG);
}
}
if(filename!=NULL)
{
FILE *handle=fopen(filename,"wb");
if(handle)
{
log_info("Create file %s\n", filename);
free(filename);
return handle;
}
log_error("Can't create file %s: %s\n", filename, strerror(errno));
free(filename);
filename=NULL;
}
#endif
{
FILE *handle=fopen(PHOTOREC_CFG,"wb");
if(handle)
{
log_info("Create file %s\n", PHOTOREC_CFG);
return handle;
}
log_error("Can't create file %s: %s\n", PHOTOREC_CFG, strerror(errno));
}
return NULL;
}
static FILE *file_options_load_aux(void)
{
#if defined(__CYGWIN__) || defined(__MINGW32__)
{
char *path;
path = getenv("USERPROFILE");
if (path == NULL)
path = getenv("HOMEPATH");
if(path!=NULL)
{
FILE*handle;
char *filename=NULL;
filename=(char*)MALLOC(strlen(path)+strlen(WIN_PHOTOREC_CFG)+1);
strcpy(filename, path);
strcat(filename, WIN_PHOTOREC_CFG);
handle=fopen(filename,"rb");
if(handle!=NULL)
{
log_info("Load parameters from %s\n", filename);
free(filename);
return handle;
}
free(filename);
}
}
#endif
#if !defined(DJGPP) && !defined(DISABLED_FOR_FRAMAC)
{
char *home;
home = getenv("HOME");
if (home != NULL)
{
FILE*handle;
char *filename=(char*)MALLOC(strlen(home)+strlen(DOT_PHOTOREC_CFG)+1);
strcpy(filename, home);
strcat(filename, DOT_PHOTOREC_CFG);
handle=fopen(filename,"rb");
if(handle!=NULL)
{
log_info("Load parameters from %s\n", filename);
free(filename);
return handle;
}
free(filename);
}
}
#endif
{
FILE *handle=fopen(PHOTOREC_CFG,"rb");
if(handle!=NULL)
{
log_info("Load parameters from %s\n", PHOTOREC_CFG);
return handle;
}
}
return NULL;
}
int file_options_save(const file_enable_t *files_enable)
{
FILE *handle;
const file_enable_t *file_enable;
handle=file_options_save_aux();
if(handle==NULL)
return -1;
/*@
@ loop invariant \valid_read(files_enable);
@*/
for(file_enable=&files_enable[0];file_enable->file_hint!=NULL;file_enable++)
{
/*@ assert \valid_read(file_enable); */
if(file_enable->file_hint->extension!=NULL)
{
if(file_enable->enable==0)
fprintf(handle, "%s,disable\n", file_enable->file_hint->extension);
else
fprintf(handle, "%s,enable\n", file_enable->file_hint->extension);
}
}
fclose(handle);
return 0;
}
int file_options_load(file_enable_t *files_enable)
{
FILE *handle;
char buffer[512];
handle=file_options_load_aux();
if(handle==NULL)
return -1;
// TODO parse the file
while(fgets(buffer, sizeof(buffer)-1, handle)!=NULL)
{
const char *extension=&buffer[0];
char *extension_status;
#ifdef __FRAMAC__
Frama_C_make_unknown(buffer, sizeof(buffer)-1);
#endif
buffer[sizeof(buffer)-1]='\0';
extension_status=strchr(buffer,',');
if(extension_status!=NULL)
{
file_enable_t *file_enable;
const unsigned int cmd_length=extension_status-extension;
*extension_status='\0';
extension_status++;
#ifdef DEBUG_PHCFG
log_debug("extension=%s, extension_status=%s", extension, extension_status);
#endif
for(file_enable=&files_enable[0];file_enable->file_hint!=NULL;file_enable++)
{
if(file_enable->file_hint->extension!=NULL &&
strlen(file_enable->file_hint->extension)==cmd_length &&
memcmp(file_enable->file_hint->extension,extension,cmd_length)==0)
{
file_enable->enable=(strncmp(extension_status, "enable",6)==0);
}
}
}
}
fclose(handle);
return 0;
}
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