apps/plugins/shortcuts/shortcuts_append.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 Bryan Childs
  11  * Copyright (c) 2007 Alexander Levin
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #include "shortcuts.h"
  24
  25 PLUGIN_HEADER
  26
  27
  28 bool append_entry_to_file(sc_file_t *file, char *path, bool is_dir)
  29 {
  30     sc_entry_t entry;
  31
  32     unsigned int required_len = rb->strlen(path);
  33     if (is_dir) {
  34         required_len += PATH_SEPARATOR_LEN; /* Add 1 for the trailing / */
  35     }
  36     if (required_len >= sizeof(entry.path)) {
  37         /* no attempt to print it: it will also be so too long for the splash */
  38         rb->splash(HZ*2, "Can't append shortcut, it's too long");
  39         return false;
  40     }
  41     entry.explicit_disp = false;
  42     rb->strcpy(entry.path, path);
  43     if (is_dir) {
  44         rb->strcat(entry.path, PATH_SEPARATOR);
  45     }
  46     if (!append_entry(file, &entry)) {
  47         rb->splash(HZ*2, "Too many entries!");
  48         return false;
  49     }
  50     return true;
  51 }
  52
  53
  54 enum plugin_status plugin_start(const void* void_parameter)
  55 {
  56     bool found;
  57     bool its_a_dir;
  58
  59     /* This is a viewer, so a parameter must have been specified */
  60     if (void_parameter == NULL) {
  61         rb->splash(HZ*2, "No parameter specified!");
  62         return PLUGIN_ERROR;
  63     }
  64     char *parameter = (char*)void_parameter;
  65     DEBUGF("Trying to append '%s' to the default link file '%s'...\n",
  66             parameter, SHORTCUTS_FILENAME);
  67
  68     allocate_memory(&memory_buf, &memory_bufsize);
  69
  70     /* Determine if it's a file or a directory. First check
  71      * if it's a dir and then file (not vice versa) since
  72      * open() can also open a dir */
  73     found = true;
  74     if (rb->dir_exists(parameter)) {
  75         its_a_dir = true;
  76     } else if (rb->file_exists(parameter)) {
  77         its_a_dir = false;
  78     } else {
  79         found = false;
  80     }
  81     /* now we know if it's a file or a directory
  82      * (or something went wrong) */
  83
  84     if (!found) {
  85         /* Something's gone properly pear shaped -
  86          * we couldn't even find the entry */
  87         rb->splashf(HZ*2, "File/Dir not found: %s", parameter);
  88         return PLUGIN_ERROR;
  89     }
  90
  91     DEBUGF("'%s' is a %s\n", parameter, (its_a_dir ? "dir" : "file"));
  92
  93     if (!load_sc_file(&sc_file, SHORTCUTS_FILENAME, false,
  94                 memory_buf, memory_bufsize)) {
  95         DEBUGF("Couldn't load '%s'\n", SHORTCUTS_FILENAME);
  96         return PLUGIN_ERROR;
  97     }
  98
  99     if (!append_entry_to_file(&sc_file, parameter, its_a_dir)) {
 100         DEBUGF("Couldn't append entry (too many entries?)\n");
 101         return PLUGIN_ERROR;
 102     }
 103
 104     if (!dump_sc_file(&sc_file, SHORTCUTS_FILENAME)) {
 105         DEBUGF("Couldn't write shortcuts to '%s'\n", SHORTCUTS_FILENAME);
 106         return PLUGIN_ERROR;
 107     }
 108
 109     return PLUGIN_OK;
 110 }