rockbox/apps/plugins/lib/configfile.c

126 lines
3.8 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "configfile.h"
static struct plugin_api *cfg_rb;
void configfile_init(struct plugin_api* newrb)
{
cfg_rb = newrb;
}
int configfile_save(const char *filename, struct configdata *cfg,
int num_items, int version)
{
int fd;
int i;
char buf[MAX_PATH];
cfg_rb->snprintf(buf, MAX_PATH, "/.rockbox/rocks/%s", filename);
fd = cfg_rb->creat(buf);
if(fd < 0)
return fd*10 - 1;
cfg_rb->fdprintf(fd, "file version: %d\n", version);
for(i = 0;i < num_items;i++) {
switch(cfg[i].type) {
case TYPE_INT:
cfg_rb->fdprintf(fd, "%s: %d\n",
cfg[i].name,
*cfg[i].val);
break;
case TYPE_ENUM:
cfg_rb->fdprintf(fd, "%s: %s\n",
cfg[i].name,
cfg[i].values[*cfg[i].val]);
break;
case TYPE_STRING:
cfg_rb->fdprintf(fd, "%s: %s\n",
cfg[i].name,
cfg[i].string);
break;
}
}
cfg_rb->close(fd);
return 0;
}
int configfile_load(const char *filename, struct configdata *cfg,
int num_items, int min_version)
{
int fd;
int i, j;
char *name;
char *val;
char buf[MAX_PATH];
int file_version = -1;
int tmp;
cfg_rb->snprintf(buf, MAX_PATH, "/.rockbox/rocks/%s", filename);
fd = cfg_rb->open(buf, O_RDONLY);
if(fd < 0)
return fd*10 - 1;
while(cfg_rb->read_line(fd, buf, MAX_PATH) > 0) {
cfg_rb->settings_parseline(buf, &name, &val);
/* Bail out if the file version is too old */
if(!cfg_rb->strcmp("file version", name)) {
file_version = cfg_rb->atoi(val);
if(file_version < min_version) {
cfg_rb->close(fd);
return -1;
}
}
for(i = 0;i < num_items;i++) {
if(!cfg_rb->strcmp(cfg[i].name, name)) {
switch(cfg[i].type) {
case TYPE_INT:
tmp = cfg_rb->atoi(val);
/* Only set it if it's within range */
if(tmp >= cfg[i].min && tmp <= cfg[i].max)
*cfg[i].val = tmp;
break;
case TYPE_ENUM:
for(j = 0;j < cfg[i].max;j++) {
if(!cfg_rb->strcmp(cfg[i].values[j], val)) {
*cfg[i].val = j;
}
}
break;
case TYPE_STRING:
cfg_rb->strncpy(cfg[i].string, val, cfg[i].max);
break;
}
}
}
}
cfg_rb->close(fd);
return 0;
}