diff options
author | Richard Levitte <levitte@openssl.org> | 2004-07-10 13:16:02 +0000 |
---|---|---|
committer | Richard Levitte <levitte@openssl.org> | 2004-07-10 13:16:02 +0000 |
commit | a2400fcab884f2851e3e7845c6955a3ddb8bcad4 (patch) | |
tree | 3a15f544fba3531daacd32edb6e966403481e908 /crypto/LPdir_unix.c | |
parent | dc56eb507997848532be954a658e3a6136e908a3 (diff) |
Copy a few files from LPlib (a new project of mine), add a wrapper.
Now we have directory reading capabilities for VMS as well, and all
of it in a fairly general manner.
Diffstat (limited to 'crypto/LPdir_unix.c')
-rw-r--r-- | crypto/LPdir_unix.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/crypto/LPdir_unix.c b/crypto/LPdir_unix.c new file mode 100644 index 0000000000..83686e8e78 --- /dev/null +++ b/crypto/LPdir_unix.c @@ -0,0 +1,105 @@ +/* $LP: LPlib/source/LPdir_unix.c,v 1.6 2004/06/14 10:08:43 _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 REGENTS 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 REGENTS 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 <string.h> +#include <sys/types.h> +#include <dirent.h> +#include <errno.h> +#ifndef LPDIR_H +#include "LPdir.h" +#endif + +struct LP_dir_context_st +{ + DIR *dir; + char entry_name[NAME_MAX+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)); + 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; +} |