1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* util/support/dir_filenames.c - fetch filenames in a directory */
4 * Copyright (C) 2018 by the Massachusetts Institute of Technology.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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33 #include "k5-platform.h"
36 k5_free_filenames(char **fnames)
40 for (fn = fnames; fn != NULL && *fn != NULL; fn++)
45 /* Resize the filename list and add a name. */
47 add_filename(char ***fnames, int *n_fnames, const char *name)
51 newlist = realloc(*fnames, (*n_fnames + 2) * sizeof(*newlist));
55 newlist[*n_fnames] = strdup(name);
56 if (newlist[*n_fnames] == NULL)
59 newlist[*n_fnames] = NULL;
64 compare_with_strcmp(const void *a, const void *b)
66 return strcmp(*(char **)a, *(char **)b);
72 k5_dir_filenames(const char *dirname, char ***fnames_out)
82 if (asprintf(&wildcard, "%s\\*", dirname) < 0)
84 handle = FindFirstFile(wildcard, &ffd);
86 if (handle == INVALID_HANDLE_VALUE)
90 if (add_filename(&fnames, &n_fnames, ffd.cFileName) != 0) {
91 k5_free_filenames(fnames);
95 } while (FindNextFile(handle, &ffd) != 0);
98 qsort(fnames, n_fnames, sizeof(*fnames), compare_with_strcmp);
108 k5_dir_filenames(const char *dirname, char ***fnames_out)
112 char **fnames = NULL;
117 dir = opendir(dirname);
121 while ((ent = readdir(dir)) != NULL) {
122 if (add_filename(&fnames, &n_fnames, ent->d_name) != 0) {
123 k5_free_filenames(fnames);
130 qsort(fnames, n_fnames, sizeof(*fnames), compare_with_strcmp);
131 *fnames_out = fnames;
135 #endif /* not _WIN32 */