1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/lpdir_unix.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,134 @@
1.4 +/* $LP: LPlib/source/LPdir_unix.c,v 1.11 2004/09/23 22:07:22 _cvs_levitte Exp $ */
1.5 +/*
1.6 + * Copyright (c) 2004, Richard Levitte <richard@levitte.org>
1.7 + * All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions
1.11 + * are met:
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + * 2. Redistributions in binary form must reproduce the above copyright
1.15 + * notice, this list of conditions and the following disclaimer in the
1.16 + * documentation and/or other materials provided with the distribution.
1.17 + *
1.18 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.19 + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.20 + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.21 + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.22 + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.23 + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.24 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.25 + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.26 + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.27 + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.28 + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.29 + */
1.30 + /*
1.31 + © Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
1.32 + */
1.33 +
1.34 +
1.35 +#include <stddef.h>
1.36 +#include <stdlib.h>
1.37 +#include <limits.h>
1.38 +#include <string.h>
1.39 +#include <sys/types.h>
1.40 +#include <dirent.h>
1.41 +#include <errno.h>
1.42 +
1.43 +#if !defined(SYMBIAN)
1.44 +#ifndef LPDIR_H
1.45 +#include "LPdir.h"
1.46 +#endif
1.47 +#endif
1.48 +
1.49 +/* The POSIXly macro for the maximum number of characters in a file path
1.50 + is NAME_MAX. However, some operating systems use PATH_MAX instead.
1.51 + Therefore, it seems natural to first check for PATH_MAX and use that,
1.52 + and if it doesn't exist, use NAME_MAX. */
1.53 +#if defined(PATH_MAX)
1.54 +# define LP_ENTRY_SIZE PATH_MAX
1.55 +#elif defined(NAME_MAX)
1.56 +# define LP_ENTRY_SIZE NAME_MAX
1.57 +#endif
1.58 +
1.59 +/* Of course, there's the possibility that neither PATH_MAX nor NAME_MAX
1.60 + exist. It's also possible that NAME_MAX exists but is define to a
1.61 + very small value (HP-UX offers 14), so we need to check if we got a
1.62 + result, and if it meets a minimum standard, and create or change it
1.63 + if not. */
1.64 +#if !defined(LP_ENTRY_SIZE) || LP_ENTRY_SIZE<255
1.65 +# undef LP_ENTRY_SIZE
1.66 +# define LP_ENTRY_SIZE 255
1.67 +#endif
1.68 +
1.69 +struct LP_dir_context_st
1.70 +{
1.71 + DIR *dir;
1.72 + char entry_name[LP_ENTRY_SIZE+1];
1.73 +};
1.74 +
1.75 +EXPORT_C const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
1.76 +{
1.77 + struct dirent *direntry = NULL;
1.78 +
1.79 + if (ctx == NULL || directory == NULL)
1.80 + {
1.81 + errno = EINVAL;
1.82 + return 0;
1.83 + }
1.84 +
1.85 + errno = 0;
1.86 + if (*ctx == NULL)
1.87 + {
1.88 + *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));
1.89 + if (*ctx == NULL)
1.90 + {
1.91 + errno = ENOMEM;
1.92 + return 0;
1.93 + }
1.94 + memset(*ctx, '\0', sizeof(LP_DIR_CTX));
1.95 +
1.96 + (*ctx)->dir = opendir(directory);
1.97 + if ((*ctx)->dir == NULL)
1.98 + {
1.99 + int save_errno = errno; /* Probably not needed, but I'm paranoid */
1.100 + free(*ctx);
1.101 + *ctx = NULL;
1.102 + errno = save_errno;
1.103 + return 0;
1.104 + }
1.105 + }
1.106 +
1.107 + direntry = readdir((*ctx)->dir);
1.108 + if (direntry == NULL)
1.109 + {
1.110 + return 0;
1.111 + }
1.112 +
1.113 + strncpy((*ctx)->entry_name, direntry->d_name, sizeof((*ctx)->entry_name) - 1);
1.114 + (*ctx)->entry_name[sizeof((*ctx)->entry_name) - 1] = '\0';
1.115 + return (*ctx)->entry_name;
1.116 +}
1.117 +
1.118 +EXPORT_C int LP_find_file_end(LP_DIR_CTX **ctx)
1.119 +{
1.120 + if (ctx != NULL && *ctx != NULL)
1.121 + {
1.122 + int ret = closedir((*ctx)->dir);
1.123 +
1.124 + free(*ctx);
1.125 + switch (ret)
1.126 + {
1.127 + case 0:
1.128 + return 1;
1.129 + case -1:
1.130 + return 0;
1.131 + default:
1.132 + break;
1.133 + }
1.134 + }
1.135 + errno = EINVAL;
1.136 + return 0;
1.137 +}