summaryrefslogtreecommitdiff
path: root/apps/plugins/lib/configfile.c
blob: 54c067c4a71b1707e79eb358f0f15cd25d4f2654 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/***************************************************************************
 *             __________               __   ___.
 *   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;
}

void get_cfg_filename(char* buf, int buf_len, const char* filename)
{
    char *s;
    cfg_rb->strcpy(buf, cfg_rb->plugin_get_current_filename());
    s = cfg_rb->strrchr(buf, '/');
    if (!s) /* should never happen */
    {
        cfg_rb->snprintf(buf, buf_len, "/.rockbox/rocks/%s", filename);
    }
    else
    {
        s++;
        *s = '\0';
        cfg_rb->strcat(s, filename);
    }
}

int configfile_save(const char *filename, struct configdata *cfg,
                    int num_items, int version)
{
    int fd;
    int i;
    char buf[MAX_PATH];

    get_cfg_filename(buf, MAX_PATH, 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;

    get_cfg_filename(buf, MAX_PATH, 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;
}