client/src/scandir.c

   1 //-----------------------------------------------------------------------------
   2 // Borrowed initially from
   3 // https://github.com/msysgit/msys/blob/master/winsup/cygwin/scandir.cc
   4 // Copyright (C) 1998-2001 Red Hat, Inc. Corinna Vinschen <corinna.vinschen@cityweb.de>
   5 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   6 //
   7 // This program is free software: you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by
   9 // the Free Software Foundation, either version 3 of the License, or
  10 // (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // See LICENSE.txt for the text of the license.
  18 //-----------------------------------------------------------------------------
  19
  20 #include "scandir.h"
  21
  22 #ifdef _WIN32
  23
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28 int scandir(const char *dir,
  29             struct dirent ***namelist,
  30             int (*select)(const struct dirent *),
  31             int (*compar)(const struct dirent **, const struct dirent **)) {
  32     DIR *dirp;
  33     struct dirent *ent, *etmp, **nl = NULL, **ntmp;
  34     int count = 0;
  35     int allocated = 0;
  36     int err_no = 0;
  37
  38     if (!(dirp = opendir(dir)))
  39         return -1;
  40
  41     while ((ent = readdir(dirp))) {
  42         if (!select || select(ent)) {
  43
  44             err_no = 0;
  45
  46             if (count == allocated) {
  47                 if (allocated == 0)
  48                     allocated = 10;
  49                 else
  50                     allocated *= 2;
  51
  52                 ntmp = (struct dirent **) realloc(nl, allocated * sizeof * nl);
  53                 if (!ntmp) {
  54                     err_no = 1;
  55                     break;
  56                 }
  57                 nl = ntmp;
  58             }
  59
  60             etmp = (struct dirent *) calloc(sizeof * ent, sizeof(char));
  61             if (!etmp) {
  62                 err_no = 1;
  63                 break;
  64             }
  65             *etmp = *ent;
  66             nl[count++] = etmp;
  67         }
  68     }
  69
  70     if (err_no != 0) {
  71         closedir(dirp);
  72         if (nl) {
  73             while (count > 0) {
  74                 free(nl[--count]);
  75             }
  76             free(nl);
  77         }
  78         return -1;
  79     }
  80
  81     closedir(dirp);
  82
  83     qsort(nl, count, sizeof * nl, (int (*)(const void *, const void *)) compar);
  84     if (namelist)
  85         *namelist = nl;
  86     return count;
  87 }
  88 #ifdef __cplusplus
  89 }
  90 #endif
  91
  92 #ifdef __cplusplus
  93 extern "C" {
  94 #endif
  95 int alphasort(const struct dirent **a, const struct dirent **b) {
  96     return strcoll((*a)->d_name, (*b)->d_name);
  97 }
  98 #ifdef __cplusplus
  99 }
 100 #endif
 101
 102 #endif  // win32