source/front-end/src/osal_files_win32.c

   1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   2  *   Mupen64plus-ui-console - osal_files_win32.c                           *
   3  *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
   4  *   Copyright (C) 2009 Richard Goedeken                                   *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  *                                                                         *
  11  *   This program is distributed in the hope that it will be useful,       *
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14  *   GNU General Public License for more details.                          *
  15  *                                                                         *
  16  *   You should have received a copy of the GNU General Public License     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
  20  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  21
  22 /* This implements all kinds of system-dependent file handling
  23  *
  24  */
  25
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <windows.h>
  30
  31 #include "main.h"
  32 #include "m64p_types.h"
  33 #include "osal_preproc.h"
  34 #include "osal_files.h"
  35
  36 /* definitions for system directories to search when looking for mupen64plus plugins */
  37 const int  osal_libsearchdirs = 1;
  38 const char *osal_libsearchpath[1] = { ".\\" };
  39
  40 osal_lib_search *osal_library_search(const char *searchpath)
  41 {
  42     osal_lib_search *head = NULL, *curr = NULL;
  43     WIN32_FIND_DATA entry;
  44     HANDLE hDir;
  45
  46     char *pchSearchPath = (char *) malloc(strlen(searchpath) + 16);
  47     if (pchSearchPath == NULL)
  48     {
  49         DebugMessage(M64MSG_ERROR, "Couldn't allocate memory for file search path in osal_library_search()!");
  50         return NULL;
  51     }
  52     sprintf(pchSearchPath, "%s\\*.dll", searchpath);
  53     hDir = FindFirstFile(pchSearchPath, &entry);
  54     free(pchSearchPath);
  55     if (hDir == INVALID_HANDLE_VALUE)
  56         return NULL;
  57
  58     /* look for any shared libraries in this folder */
  59     do
  60     {
  61         osal_lib_search *newlib = NULL;
  62         /* this is a .dll file, so add it to the list */
  63         newlib = (osal_lib_search *) malloc(sizeof(osal_lib_search));
  64         if (newlib == NULL)
  65         {
  66             DebugMessage(M64MSG_ERROR, "Memory allocation error in osal_library_search()!");
  67             osal_free_lib_list(head);
  68             FindClose(hDir);
  69             return NULL;
  70         }
  71         if (head == NULL)
  72         {
  73             head = curr = newlib;
  74         }
  75         else
  76         {
  77             curr->next = newlib;
  78             curr = newlib;
  79         }
  80         /* set up the filepath and filename members */
  81         strncpy(curr->filepath, searchpath, PATH_MAX-2);
  82         curr->filepath[PATH_MAX-2] = 0;
  83         if (curr->filepath[strlen(curr->filepath)-1] != '\\')
  84             strcat(curr->filepath, "\\");
  85         int pathlen = (int) strlen(curr->filepath);
  86         curr->filename = curr->filepath + pathlen;
  87         strncat(curr->filepath, entry.cFileName, PATH_MAX - pathlen - 1);
  88         curr->filepath[PATH_MAX-1] = 0;
  89         /* set plugin_type and next pointer */
  90         curr->plugin_type = (m64p_plugin_type) 0;
  91         curr->next = NULL;
  92     } while (FindNextFile(hDir, &entry));
  93
  94     FindClose(hDir);
  95     return head;
  96 }
  97
  98 void osal_free_lib_list(osal_lib_search *head)
  99 {
 100     while (head != NULL)
 101     {
 102         osal_lib_search *next = head->next;
 103         free(head);
 104         head = next;
 105     }
 106 }