90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
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/* $LP: LPlib/source/LPdir_unix.c,v 1.11 2004/09/23 22:07:22 _cvs_levitte Exp $ */
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/*
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* Copyright (c) 2004, Richard Levitte <richard@levitte.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#define _POSIX_C_SOURCE 1 /* for readdir_r */
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#include "directory.h"
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#if !defined(OPENSSL_WINDOWS)
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#include <dirent.h>
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#include <errno.h>
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struct OPENSSL_dir_context_st {
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DIR *dir;
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struct dirent dirent;
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};
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const char *OPENSSL_DIR_read(OPENSSL_DIR_CTX **ctx, const char *directory) {
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struct dirent *dirent;
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if (ctx == NULL || directory == NULL) {
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errno = EINVAL;
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return NULL;
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}
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errno = 0;
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if (*ctx == NULL) {
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*ctx = malloc(sizeof(OPENSSL_DIR_CTX));
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if (*ctx == NULL) {
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errno = ENOMEM;
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return 0;
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}
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memset(*ctx, 0, sizeof(OPENSSL_DIR_CTX));
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(*ctx)->dir = opendir(directory);
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if ((*ctx)->dir == NULL) {
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int save_errno = errno; /* Probably not needed, but I'm paranoid */
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free(*ctx);
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*ctx = NULL;
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errno = save_errno;
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return 0;
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}
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}
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if (readdir_r((*ctx)->dir, &(*ctx)->dirent, &dirent) != 0 ||
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dirent == NULL) {
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return 0;
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}
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return (*ctx)->dirent.d_name;
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}
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int OPENSSL_DIR_end(OPENSSL_DIR_CTX **ctx) {
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if (ctx != NULL && *ctx != NULL) {
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int r = closedir((*ctx)->dir);
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free(*ctx);
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*ctx = NULL;
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return r == 0;
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}
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errno = EINVAL;
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return 0;
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}
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#endif /* !OPENSSL_WINDOWS */
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