1 /* $LP: LPlib/source/LPdir_vms.c,v 1.20 2004/08/26 13:36:05 _cvs_levitte Exp $ */
3 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <libfildef.h>
36 #include <lib$routines.h>
38 #include <str$routines.h>
44 /* Because some compiler options hide this macor */
46 #define EVMSERR 65535 /* error for non-translatable VMS errors */
49 struct LP_dir_context_st
51 unsigned long VMS_context;
53 char filespec[NAML$C_MAXRSS+1];
54 char result[NAML$C_MAXRSS+1];
59 struct dsc$descriptor_d filespec_dsc;
60 struct dsc$descriptor_d result_dsc;
63 const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
68 unsigned long flags = 0;
70 flags |= LIB$M_FIL_LONG_NAMES;
73 if (ctx == NULL || directory == NULL)
82 size_t filespeclen = strlen(directory);
83 char *filespec = NULL;
85 /* MUST be a VMS directory specification! Let's estimate if it is. */
86 if (directory[filespeclen-1] != ']'
87 && directory[filespeclen-1] != '>'
88 && directory[filespeclen-1] != ':')
94 filespeclen += 4; /* "*.*;" */
104 errno = ENAMETOOLONG;
108 *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));
114 memset(*ctx, '\0', sizeof(LP_DIR_CTX));
116 strcpy((*ctx)->filespec,directory);
117 strcat((*ctx)->filespec,"*.*;");
118 (*ctx)->filespec_dsc.dsc$w_length = filespeclen;
119 (*ctx)->filespec_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
120 (*ctx)->filespec_dsc.dsc$b_class = DSC$K_CLASS_S;
121 (*ctx)->filespec_dsc.dsc$a_pointer = (*ctx)->filespec;
122 (*ctx)->result_dsc.dsc$w_length = 0;
123 (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
124 (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D;
125 (*ctx)->result_dsc.dsc$a_pointer = 0;
128 (*ctx)->result_dsc.dsc$w_length = 0;
129 (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
130 (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D;
131 (*ctx)->result_dsc.dsc$a_pointer = 0;
133 status = lib$find_file(&(*ctx)->filespec_dsc, &(*ctx)->result_dsc,
134 &(*ctx)->VMS_context, 0, 0, 0, &flags);
136 if (status == RMS$_NMF)
143 if(!$VMS_STATUS_SUCCESS(status))
150 /* Quick, cheap and dirty way to discard any device and directory,
151 since we only want file names */
152 l = (*ctx)->result_dsc.dsc$w_length;
153 p = (*ctx)->result_dsc.dsc$a_pointer;
157 if (*p == '^' && p[1] != '\0') /* Take care of ODS-5 escapes */
161 else if (*p == ':' || *p == '>' || *p == ']')
173 strncpy((*ctx)->result, r, l);
174 (*ctx)->result[l] = '\0';
175 str$free1_dx(&(*ctx)->result_dsc);
177 return (*ctx)->result;
180 int LP_find_file_end(LP_DIR_CTX **ctx)
182 if (ctx != NULL && *ctx != NULL)
184 int status = lib$find_file_end(&(*ctx)->VMS_context);
188 if(!$VMS_STATUS_SUCCESS(status))