release/src/router/minidlna/options.c

   1 /* $Id: options.c,v 1.15 2011/06/25 00:39:45 jmaggard Exp $ */
   2 /* MiniUPnP project
   3  * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
   4  * author: Ryan Wagoner
   5  *
   6  * Copyright (c) 2006, Thomas Bernard
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions are met:
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in the
  15  *       documentation and/or other materials provided with the distribution.
  16  *     * The name of the author may not be used to endorse or promote products
  17  *       derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <stdlib.h>
  34 #include <ctype.h>
  35 #include "options.h"
  36 #include "upnpglobalvars.h"
  37
  38 struct option * ary_options = NULL;
  39 int num_options = 0;
  40
  41 static const struct {
  42         enum upnpconfigoptions id;
  43         const char * name;
  44 } optionids[] = {
  45         { UPNPIFNAME, "network_interface" },
  46         { UPNPLISTENING_IP, "listening_ip" },
  47         { UPNPPORT, "port" },
  48         { UPNPPRESENTATIONURL, "presentation_url" },
  49         { UPNPNOTIFY_INTERVAL, "notify_interval" },
  50         { UPNPSYSTEM_UPTIME, "system_uptime" },
  51         { UPNPUUID, "uuid"},
  52         { UPNPSERIAL, "serial"},
  53         { UPNPMODEL_NAME, "model_name"},
  54         { UPNPMODEL_NUMBER, "model_number"},
  55         { UPNPFRIENDLYNAME, "friendly_name"},
  56         { UPNPMEDIADIR, "media_dir"},
  57         { UPNPALBUMART_NAMES, "album_art_names"},
  58         { UPNPINOTIFY, "inotify" },
  59         { UPNPDBDIR, "db_dir" },
  60         { UPNPLOGDIR, "log_dir" },
  61         { ENABLE_TIVO, "enable_tivo" },
  62         { ENABLE_DLNA_STRICT, "strict_dlna" },
  63         { ROOT_CONTAINER, "root_container" }
  64 };
  65
  66 int
  67 readoptionsfile(const char * fname)
  68 {
  69         FILE *hfile = NULL;
  70         char buffer[1024];
  71         char *equals;
  72         char *name;
  73         char *value;
  74         char *t;
  75         int linenum = 0;
  76         int i;
  77         enum upnpconfigoptions id;
  78
  79         if(!fname || (strlen(fname) == 0))
  80                 return -1;
  81
  82         memset(buffer, 0, sizeof(buffer));
  83
  84 #ifdef DEBUG
  85         printf("Reading configuration from file %s\n", fname);
  86 #endif
  87
  88         if(!(hfile = fopen(fname, "r")))
  89                 return -1;
  90
  91         if(ary_options != NULL)
  92         {
  93                 free(ary_options);
  94                 num_options = 0;
  95         }
  96
  97         while(fgets(buffer, sizeof(buffer), hfile))
  98         {
  99                 linenum++;
 100                 t = strchr(buffer, '\n');
 101                 if(t)
 102                 {
 103                         *t = '\0';
 104                         t--;
 105                         while((t >= buffer) && isspace(*t))
 106                         {
 107                                 *t = '\0';
 108                                 t--;
 109                         }
 110                 }
 111
 112                 /* skip leading whitespaces */
 113                 name = buffer;
 114                 while(isspace(*name))
 115                         name++;
 116
 117                 /* check for comments or empty lines */
 118                 if(name[0] == '#' || name[0] == '\0') continue;
 119
 120                 if(!(equals = strchr(name, '=')))
 121                 {
 122                         fprintf(stderr, "parsing error file %s line %d : %s\n",
 123                                 fname, linenum, name);
 124                         continue;
 125                 }
 126
 127                 /* remove ending whitespaces */
 128                 for(t=equals-1; t>name && isspace(*t); t--)
 129                         *t = '\0';
 130
 131                 *equals = '\0';
 132                 value = equals+1;
 133
 134                 /* skip leading whitespaces */
 135                 while(isspace(*value))
 136                         value++;
 137
 138                 id = UPNP_INVALID;
 139                 for(i=0; i<sizeof(optionids)/sizeof(optionids[0]); i++)
 140                 {
 141                         /*printf("%2d %2d %s %s\n", i, optionids[i].id, name,
 142                                optionids[i].name); */
 143
 144                         if(0 == strcmp(name, optionids[i].name))
 145                         {
 146                                 id = optionids[i].id;
 147                                 break;
 148                         }
 149                 }
 150
 151                 if(id == UPNP_INVALID)
 152                 {
 153                         fprintf(stderr, "parsing error file %s line %d : %s=%s\n",
 154                                 fname, linenum, name, value);
 155                 }
 156                 else
 157                 {
 158                         num_options += 1;
 159                         ary_options = (struct option *) realloc(ary_options, num_options * sizeof(struct option));
 160
 161                         ary_options[num_options-1].id = id;
 162                         strncpy(ary_options[num_options-1].value, value, MAX_OPTION_VALUE_LEN);
 163                 }
 164
 165         }
 166
 167         fclose(hfile);
 168
 169         return 0;
 170 }
 171
 172 void
 173 freeoptions(void)
 174 {
 175         if(ary_options)
 176         {
 177                 free(ary_options);
 178                 ary_options = NULL;
 179                 num_options = 0;
 180         }
 181 }
 182