diff options
author | Rémi Verschelde <rverschelde@gmail.com> | 2016-10-12 23:06:17 +0200 |
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committer | Rémi Verschelde <rverschelde@gmail.com> | 2016-10-15 11:50:41 +0200 |
commit | 422196759f93df249db38619f136cabd5dcf42cd (patch) | |
tree | 1e5846507af0f8f1bc7ca294ccfb0d4ac3392d17 /thirdparty/openssl/crypto/LPdir_unix.c | |
parent | d9a291f6411f2e571c181da0ac89f550ba73f681 (diff) |
openssl: Move to a module and split thirdparty lib
Same rationale as the previous commits.
Diffstat (limited to 'thirdparty/openssl/crypto/LPdir_unix.c')
-rw-r--r-- | thirdparty/openssl/crypto/LPdir_unix.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/LPdir_unix.c b/thirdparty/openssl/crypto/LPdir_unix.c new file mode 100644 index 0000000000..bead6abd71 --- /dev/null +++ b/thirdparty/openssl/crypto/LPdir_unix.c @@ -0,0 +1,126 @@ +/* + * $LP: LPlib/source/LPdir_unix.c,v 1.11 2004/09/23 22:07:22 _cvs_levitte Exp + * $ + */ +/* + * Copyright (c) 2004, Richard Levitte <richard@levitte.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stddef.h> +#include <stdlib.h> +#include <limits.h> +#include <string.h> +#include <sys/types.h> +#include <dirent.h> +#include <errno.h> +#ifndef LPDIR_H +# include "LPdir.h" +#endif + +/* + * The POSIXly macro for the maximum number of characters in a file path is + * NAME_MAX. However, some operating systems use PATH_MAX instead. + * Therefore, it seems natural to first check for PATH_MAX and use that, and + * if it doesn't exist, use NAME_MAX. + */ +#if defined(PATH_MAX) +# define LP_ENTRY_SIZE PATH_MAX +#elif defined(NAME_MAX) +# define LP_ENTRY_SIZE NAME_MAX +#endif + +/* + * Of course, there's the possibility that neither PATH_MAX nor NAME_MAX + * exist. It's also possible that NAME_MAX exists but is define to a very + * small value (HP-UX offers 14), so we need to check if we got a result, and + * if it meets a minimum standard, and create or change it if not. + */ +#if !defined(LP_ENTRY_SIZE) || LP_ENTRY_SIZE<255 +# undef LP_ENTRY_SIZE +# define LP_ENTRY_SIZE 255 +#endif + +struct LP_dir_context_st { + DIR *dir; + char entry_name[LP_ENTRY_SIZE + 1]; +}; + +const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory) +{ + struct dirent *direntry = NULL; + + if (ctx == NULL || directory == NULL) { + errno = EINVAL; + return 0; + } + + errno = 0; + if (*ctx == NULL) { + *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX)); + if (*ctx == NULL) { + errno = ENOMEM; + return 0; + } + memset(*ctx, '\0', sizeof(LP_DIR_CTX)); + + (*ctx)->dir = opendir(directory); + if ((*ctx)->dir == NULL) { + int save_errno = errno; /* Probably not needed, but I'm paranoid */ + free(*ctx); + *ctx = NULL; + errno = save_errno; + return 0; + } + } + + direntry = readdir((*ctx)->dir); + if (direntry == NULL) { + return 0; + } + + strncpy((*ctx)->entry_name, direntry->d_name, + sizeof((*ctx)->entry_name) - 1); + (*ctx)->entry_name[sizeof((*ctx)->entry_name) - 1] = '\0'; + return (*ctx)->entry_name; +} + +int LP_find_file_end(LP_DIR_CTX **ctx) +{ + if (ctx != NULL && *ctx != NULL) { + int ret = closedir((*ctx)->dir); + + free(*ctx); + switch (ret) { + case 0: + return 1; + case -1: + return 0; + default: + break; + } + } + errno = EINVAL; + return 0; +} |