source/gles2rice/src/osal_files_unix.c

   1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   2  *   Mupen64plus-core - osal_files_unix.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 file contains the definitions for the unix-specific file handling
  23  * functions
  24  */
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <unistd.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <stdio.h>
  32 #include <dirent.h>
  33
  34 #include "osal_files.h"
  35
  36 /* global functions */
  37
  38 int osal_is_directory(const char* name)
  39 {
  40     DIR* dir;
  41     dir = opendir(name);
  42     if(dir != NULL)
  43     {
  44         closedir(dir);
  45         return 1;
  46     }
  47     return 0;
  48 }
  49
  50 int osal_mkdirp(const char *dirpath, int mode)
  51 {
  52     struct stat fileinfo;
  53     int dirpathlen = strlen(dirpath);
  54     char *currpath = strdup(dirpath);
  55
  56     /* first, break the path into pieces by replacing all of the slashes wil NULL chars */
  57     while (strlen(currpath) > 1)
  58     {
  59         char *lastslash = strrchr(currpath, '/');
  60         if (lastslash == NULL)
  61             break;
  62         *lastslash = 0;
  63     }
  64
  65     /* then re-assemble the path from left to right until we get to a directory that doesn't exist */
  66     while (strlen(currpath) < dirpathlen)
  67     {
  68         if (strlen(currpath) > 0 && stat(currpath, &fileinfo) != 0)
  69             break;
  70         currpath[strlen(currpath)] = '/';
  71     }
  72
  73     /* then walk up the path chain, creating directories along the way */
  74     do
  75     {
  76         if (stat(currpath, &fileinfo) != 0)
  77         {
  78             if (mkdir(currpath, mode) != 0)
  79             {
  80                 free(currpath);
  81                 return 1;        /* mkdir failed */
  82             }
  83         }
  84         if (strlen(currpath) == dirpathlen)
  85             break;
  86         else
  87             currpath[strlen(currpath)] = '/';
  88     } while (1);
  89
  90     free(currpath);
  91     return 0;
  92 }
  93
  94 void * osal_search_dir_open(const char *pathname)
  95 {
  96     DIR *dir;
  97     dir = opendir(pathname);
  98     return dir;
  99 }
 100
 101 const char *osal_search_dir_read_next(void * dir_handle)
 102 {
 103     DIR *dir = (DIR *) dir_handle;
 104     struct dirent *entry;
 105
 106     entry = readdir(dir);
 107     if (entry == NULL)
 108         return NULL;
 109     return entry->d_name;
 110 }
 111
 112 void osal_search_dir_close(void * dir_handle)
 113 {
 114     closedir((DIR *) dir_handle);
 115 }
 116