1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 /* File: curl_crtl_init.c
25 *
26 * This file makes sure that the DECC Unix settings are correct for
27 * the mode the program is run in.
28 *
29 * The CRTL has not been initialized at the time that these routines
30 * are called, so many routines can not be called.
31 *
32 * This is a module that provides a LIB$INITIALIZE routine that
33 * will turn on some CRTL features that are not enabled by default.
34 *
35 * The CRTL features can also be turned on via logical names, but that
36 * impacts all programs and some aren't ready, willing, or able to handle
37 * those settings.
38 *
39 * On VMS versions that are too old to use the feature setting API, this
40 * module falls back to using logical names.
41 *
42 * Copyright (C) John Malmberg
43 *
44 * Permission to use, copy, modify, and/or distribute this software for any
45 * purpose with or without fee is hereby granted, provided that the above
46 * copyright notice and this permission notice appear in all copies.
47 *
48 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
49 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
50 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
51 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
52 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
53 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
54 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
55 *
56 */
57
58 /* Unix headers */
59 #include <stdio.h>
60 #include <string.h>
61
62 /* VMS specific headers */
63 #include <descrip.h>
64 #include <lnmdef.h>
65 #include <stsdef.h>
66
67 #pragma member_alignment save
68 #pragma nomember_alignment longword
69 #pragma message save
70 #pragma message disable misalgndmem
71 struct itmlst_3 {
72 unsigned short int buflen;
73 unsigned short int itmcode;
74 void *bufadr;
75 unsigned short int *retlen;
76 };
77 #pragma message restore
78 #pragma member_alignment restore
79
80 #ifdef __VAX
81 #define ENABLE "ENABLE"
82 #define DISABLE "DISABLE"
83 #else
84
85 #define ENABLE TRUE
86 #define DISABLE 0
87 int decc$feature_get_index (const char *name);
88 int decc$feature_set_value (int index, int mode, int value);
89 #endif
90
91 int SYS$TRNLNM(
92 const unsigned long * attr,
93 const struct dsc$descriptor_s * table_dsc,
94 struct dsc$descriptor_s * name_dsc,
95 const unsigned char * acmode,
96 const struct itmlst_3 * item_list);
97 int SYS$CRELNM(
98 const unsigned long * attr,
99 const struct dsc$descriptor_s * table_dsc,
100 const struct dsc$descriptor_s * name_dsc,
101 const unsigned char * acmode,
102 const struct itmlst_3 * item_list);
103
104
105 /* Take all the fun out of simply looking up a logical name */
sys_trnlnm(const char * logname,char * value,int value_len)106 static int sys_trnlnm
107 (const char * logname,
108 char * value,
109 int value_len)
110 {
111 const $DESCRIPTOR(table_dsc, "LNM$FILE_DEV");
112 const unsigned long attr = LNM$M_CASE_BLIND;
113 struct dsc$descriptor_s name_dsc;
114 int status;
115 unsigned short result;
116 struct itmlst_3 itlst[2];
117
118 itlst[0].buflen = value_len;
119 itlst[0].itmcode = LNM$_STRING;
120 itlst[0].bufadr = value;
121 itlst[0].retlen = &result;
122
123 itlst[1].buflen = 0;
124 itlst[1].itmcode = 0;
125
126 name_dsc.dsc$w_length = strlen(logname);
127 name_dsc.dsc$a_pointer = (char *)logname;
128 name_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
129 name_dsc.dsc$b_class = DSC$K_CLASS_S;
130
131 status = SYS$TRNLNM(&attr, &table_dsc, &name_dsc, 0, itlst);
132
133 if($VMS_STATUS_SUCCESS(status)) {
134
135 /* Null terminate and return the string */
136 /*--------------------------------------*/
137 value[result] = '\0';
138 }
139
140 return status;
141 }
142
143 /* How to simply create a logical name */
sys_crelnm(const char * logname,const char * value)144 static int sys_crelnm
145 (const char * logname,
146 const char * value)
147 {
148 int ret_val;
149 const char * proc_table = "LNM$PROCESS_TABLE";
150 struct dsc$descriptor_s proc_table_dsc;
151 struct dsc$descriptor_s logname_dsc;
152 struct itmlst_3 item_list[2];
153
154 proc_table_dsc.dsc$a_pointer = (char *) proc_table;
155 proc_table_dsc.dsc$w_length = strlen(proc_table);
156 proc_table_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
157 proc_table_dsc.dsc$b_class = DSC$K_CLASS_S;
158
159 logname_dsc.dsc$a_pointer = (char *) logname;
160 logname_dsc.dsc$w_length = strlen(logname);
161 logname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
162 logname_dsc.dsc$b_class = DSC$K_CLASS_S;
163
164 item_list[0].buflen = strlen(value);
165 item_list[0].itmcode = LNM$_STRING;
166 item_list[0].bufadr = (char *)value;
167 item_list[0].retlen = NULL;
168
169 item_list[1].buflen = 0;
170 item_list[1].itmcode = 0;
171
172 ret_val = SYS$CRELNM(NULL, &proc_table_dsc, &logname_dsc, NULL, item_list);
173
174 return ret_val;
175 }
176
177
178 /* Start of DECC RTL Feature handling */
179
180 /*
181 ** Sets default value for a feature
182 */
183 #ifdef __VAX
set_feature_default(const char * name,const char * value)184 static void set_feature_default(const char *name, const char *value)
185 {
186 sys_crelnm(name, value);
187 }
188 #else
set_feature_default(const char * name,int value)189 static void set_feature_default(const char *name, int value)
190 {
191 int index;
192
193 index = decc$feature_get_index(name);
194
195 if(index > 0)
196 decc$feature_set_value (index, 0, value);
197 }
198 #endif
199
set_features(void)200 static void set_features(void)
201 {
202 int status;
203 char unix_shell_name[255];
204 int use_unix_settings = 1;
205
206 status = sys_trnlnm("GNV$UNIX_SHELL",
207 unix_shell_name, sizeof unix_shell_name -1);
208 if(!$VMS_STATUS_SUCCESS(status)) {
209 use_unix_settings = 0;
210 }
211
212 /* ACCESS should check ACLs or it is lying. */
213 set_feature_default("DECC$ACL_ACCESS_CHECK", ENABLE);
214
215 /* We always want the new parse style */
216 set_feature_default ("DECC$ARGV_PARSE_STYLE" , ENABLE);
217
218
219 /* Unless we are in POSIX compliant mode, we want the old POSIX root
220 * enabled.
221 */
222 set_feature_default("DECC$DISABLE_POSIX_ROOT", DISABLE);
223
224 /* EFS charset, means UTF-8 support */
225 /* VTF-7 support is controlled by a feature setting called UTF8 */
226 set_feature_default ("DECC$EFS_CHARSET", ENABLE);
227 set_feature_default ("DECC$EFS_CASE_PRESERVE", ENABLE);
228
229 /* Support timestamps when available */
230 set_feature_default ("DECC$EFS_FILE_TIMESTAMPS", ENABLE);
231
232 /* Cache environment variables - performance improvements */
233 set_feature_default ("DECC$ENABLE_GETENV_CACHE", ENABLE);
234
235 /* Start out with new file attribute inheritance */
236 #ifdef __VAX
237 set_feature_default ("DECC$EXEC_FILEATTR_INHERITANCE", "2");
238 #else
239 set_feature_default ("DECC$EXEC_FILEATTR_INHERITANCE", 2);
240 #endif
241
242 /* Don't display trailing dot after files without type */
243 set_feature_default ("DECC$READDIR_DROPDOTNOTYPE", ENABLE);
244
245 /* For standard output channels buffer output until terminator */
246 /* Gets rid of output logs with single character lines in them. */
247 set_feature_default ("DECC$STDIO_CTX_EOL", ENABLE);
248
249 /* Fix mv aa.bb aa */
250 set_feature_default ("DECC$RENAME_NO_INHERIT", ENABLE);
251
252 if(use_unix_settings) {
253
254 /* POSIX requires that open files be able to be removed */
255 set_feature_default ("DECC$ALLOW_REMOVE_OPEN_FILES", ENABLE);
256
257 /* Default to outputting Unix filenames in VMS routines */
258 set_feature_default ("DECC$FILENAME_UNIX_ONLY", ENABLE);
259 /* FILENAME_UNIX_ONLY Implicitly sets */
260 /* decc$disable_to_vms_logname_translation */
261
262 set_feature_default ("DECC$FILE_PERMISSION_UNIX", ENABLE);
263
264 set_feature_default ("DECC$FILE_SHARING", ENABLE);
265
266 set_feature_default ("DECC$FILE_OWNER_UNIX", ENABLE);
267 set_feature_default ("DECC$POSIX_SEEK_STREAM_FILE", ENABLE);
268
269 } else {
270 set_feature_default("DECC$FILENAME_UNIX_REPORT", ENABLE);
271 }
272
273 /* When reporting Unix filenames, glob the same way */
274 set_feature_default ("DECC$GLOB_UNIX_STYLE", ENABLE);
275
276 /* The VMS version numbers on Unix filenames is incompatible with most */
277 /* ported packages. */
278 set_feature_default("DECC$FILENAME_UNIX_NO_VERSION", ENABLE);
279
280 /* The VMS version numbers on Unix filenames is incompatible with most */
281 /* ported packages. */
282 set_feature_default("DECC$UNIX_PATH_BEFORE_LOGNAME", ENABLE);
283
284 /* Set strtol to proper behavior */
285 set_feature_default("DECC$STRTOL_ERANGE", ENABLE);
286
287 /* Commented here to prevent future bugs: A program or user should */
288 /* never ever enable DECC$POSIX_STYLE_UID. */
289 /* It will probably break all code that accesses UIDs */
290 /* do_not_set_default ("DECC$POSIX_STYLE_UID", TRUE); */
291 }
292
293
294 /* Some boilerplate to force this to be a proper LIB$INITIALIZE section */
295
296 #pragma nostandard
297 #pragma extern_model save
298 #ifdef __VAX
299 #pragma extern_model strict_refdef "LIB$INITIALIZE" nowrt, long, nopic
300 #else
301 #pragma extern_model strict_refdef "LIB$INITIALIZE" nowrt, long
302 # if __INITIAL_POINTER_SIZE
303 # pragma __pointer_size __save
304 # pragma __pointer_size 32
305 # else
306 # pragma __required_pointer_size __save
307 # pragma __required_pointer_size 32
308 # endif
309 #endif
310 /* Set our contribution to the LIB$INITIALIZE array */
311 void (* const iniarray[])(void) = {set_features, } ;
312 #ifndef __VAX
313 # if __INITIAL_POINTER_SIZE
314 # pragma __pointer_size __restore
315 # else
316 # pragma __required_pointer_size __restore
317 # endif
318 #endif
319
320
321 /*
322 ** Force a reference to LIB$INITIALIZE to ensure it
323 ** exists in the image.
324 */
325 int LIB$INITIALIZE(void);
326 #ifdef __DECC
327 #pragma extern_model strict_refdef
328 #endif
329 int lib_init_ref = (int) LIB$INITIALIZE;
330 #ifdef __DECC
331 #pragma extern_model restore
332 #pragma standard
333 #endif
334
