1/* 2 * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10/* 11 * This file is dual-licensed and is also available under the following 12 * terms: 13 * 14 * Copyright (c) 2004, Richard Levitte <richard@levitte.org> 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 29 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 30 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 31 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 36 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include <stddef.h> 40#include <stdlib.h> 41#include <string.h> 42#include <errno.h> 43#include <descrip.h> 44#include <namdef.h> 45#include <rmsdef.h> 46#include <libfildef.h> 47#include <lib$routines.h> 48#include <strdef.h> 49#include <str$routines.h> 50#include <stsdef.h> 51#ifndef LPDIR_H 52# include "LPdir.h" 53#endif 54#include "vms_rms.h" 55 56/* Some compiler options hide EVMSERR. */ 57#ifndef EVMSERR 58# define EVMSERR 65535 /* error for non-translatable VMS errors */ 59#endif 60 61struct LP_dir_context_st { 62 unsigned long VMS_context; 63 char filespec[NAMX_MAXRSS + 1]; 64 char result[NAMX_MAXRSS + 1]; 65 struct dsc$descriptor_d filespec_dsc; 66 struct dsc$descriptor_d result_dsc; 67}; 68 69const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory) 70{ 71 int status; 72 char *p, *r; 73 size_t l; 74 unsigned long flags = 0; 75 76/* Arrange 32-bit pointer to (copied) string storage, if needed. */ 77#if __INITIAL_POINTER_SIZE == 64 78# pragma pointer_size save 79# pragma pointer_size 32 80 char *ctx_filespec_32p; 81# pragma pointer_size restore 82 char ctx_filespec_32[NAMX_MAXRSS + 1]; 83#endif /* __INITIAL_POINTER_SIZE == 64 */ 84 85#ifdef NAML$C_MAXRSS 86 flags |= LIB$M_FIL_LONG_NAMES; 87#endif 88 89 if (ctx == NULL || directory == NULL) { 90 errno = EINVAL; 91 return 0; 92 } 93 94 errno = 0; 95 if (*ctx == NULL) { 96 size_t filespeclen = strlen(directory); 97 char *filespec = NULL; 98 99 if (filespeclen == 0) { 100 errno = ENOENT; 101 return 0; 102 } 103 104 /* MUST be a VMS directory specification! Let's estimate if it is. */ 105 if (directory[filespeclen - 1] != ']' 106 && directory[filespeclen - 1] != '>' 107 && directory[filespeclen - 1] != ':') { 108 errno = EINVAL; 109 return 0; 110 } 111 112 filespeclen += 4; /* "*.*;" */ 113 114 if (filespeclen > NAMX_MAXRSS) { 115 errno = ENAMETOOLONG; 116 return 0; 117 } 118 119 *ctx = malloc(sizeof(**ctx)); 120 if (*ctx == NULL) { 121 errno = ENOMEM; 122 return 0; 123 } 124 memset(*ctx, 0, sizeof(**ctx)); 125 126 strcpy((*ctx)->filespec, directory); 127 strcat((*ctx)->filespec, "*.*;"); 128 129/* Arrange 32-bit pointer to (copied) string storage, if needed. */ 130#if __INITIAL_POINTER_SIZE == 64 131# define CTX_FILESPEC ctx_filespec_32p 132 /* Copy the file name to storage with a 32-bit pointer. */ 133 ctx_filespec_32p = ctx_filespec_32; 134 strcpy(ctx_filespec_32p, (*ctx)->filespec); 135#else /* __INITIAL_POINTER_SIZE == 64 */ 136# define CTX_FILESPEC (*ctx)->filespec 137#endif /* __INITIAL_POINTER_SIZE == 64 [else] */ 138 139 (*ctx)->filespec_dsc.dsc$w_length = filespeclen; 140 (*ctx)->filespec_dsc.dsc$b_dtype = DSC$K_DTYPE_T; 141 (*ctx)->filespec_dsc.dsc$b_class = DSC$K_CLASS_S; 142 (*ctx)->filespec_dsc.dsc$a_pointer = CTX_FILESPEC; 143 } 144 145 (*ctx)->result_dsc.dsc$w_length = 0; 146 (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T; 147 (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D; 148 (*ctx)->result_dsc.dsc$a_pointer = 0; 149 150 status = lib$find_file(&(*ctx)->filespec_dsc, &(*ctx)->result_dsc, 151 &(*ctx)->VMS_context, 0, 0, 0, &flags); 152 153 if (status == RMS$_NMF) { 154 errno = 0; 155 vaxc$errno = status; 156 return NULL; 157 } 158 159 if (!$VMS_STATUS_SUCCESS(status)) { 160 errno = EVMSERR; 161 vaxc$errno = status; 162 return NULL; 163 } 164 165 /* 166 * Quick, cheap and dirty way to discard any device and directory, since 167 * we only want file names 168 */ 169 l = (*ctx)->result_dsc.dsc$w_length; 170 p = (*ctx)->result_dsc.dsc$a_pointer; 171 r = p; 172 for (; *p; p++) { 173 if (*p == '^' && p[1] != '\0') { /* Take care of ODS-5 escapes */ 174 p++; 175 } else if (*p == ':' || *p == '>' || *p == ']') { 176 l -= p + 1 - r; 177 r = p + 1; 178 } else if (*p == ';') { 179 l = p - r; 180 break; 181 } 182 } 183 184 strncpy((*ctx)->result, r, l); 185 (*ctx)->result[l] = '\0'; 186 str$free1_dx(&(*ctx)->result_dsc); 187 188 return (*ctx)->result; 189} 190 191int LP_find_file_end(LP_DIR_CTX **ctx) 192{ 193 if (ctx != NULL && *ctx != NULL) { 194 int status = lib$find_file_end(&(*ctx)->VMS_context); 195 196 free(*ctx); 197 198 if (!$VMS_STATUS_SUCCESS(status)) { 199 errno = EVMSERR; 200 vaxc$errno = status; 201 return 0; 202 } 203 return 1; 204 } 205 errno = EINVAL; 206 return 0; 207} 208