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 #include "tool_setup.h"
25
26 #ifdef __VMS
27
28 #if defined(__DECC) && !defined(__VAX) && \
29 defined(__CRTL_VER) && (__CRTL_VER >= 70301000)
30 #include <unixlib.h>
31 #endif
32
33 #define ENABLE_CURLX_PRINTF
34 #include "curlx.h"
35
36 #include "curlmsg_vms.h"
37 #include "tool_vms.h"
38
39 #include "memdebug.h" /* keep this as LAST include */
40
41 void decc$__posix_exit(int __status);
42 void decc$exit(int __status);
43
44 static int vms_shell = -1;
45
46 /* VMS has a DCL shell and also has Unix shells ported to it.
47 * When curl is running under a Unix shell, we want it to be as much
48 * like Unix as possible.
49 */
is_vms_shell(void)50 int is_vms_shell(void)
51 {
52 char *shell;
53
54 /* Have we checked the shell yet? */
55 if(vms_shell >= 0)
56 return vms_shell;
57
58 shell = getenv("SHELL");
59
60 /* No shell, means DCL */
61 if(!shell) {
62 vms_shell = 1;
63 return 1;
64 }
65
66 /* Have to make sure some one did not set shell to DCL */
67 if(strcmp(shell, "DCL") == 0) {
68 vms_shell = 1;
69 return 1;
70 }
71
72 vms_shell = 0;
73 return 0;
74 }
75
76 /*
77 * VMS has two exit() routines. When running under a Unix style shell, then
78 * Unix style and the __posix_exit() routine is used.
79 *
80 * When running under the DCL shell, then the VMS encoded codes and decc$exit()
81 * is used.
82 *
83 * We can not use exit() or return a code from main() because the actual
84 * routine called depends on both the compiler version, compile options, and
85 * feature macro settings, and one of the exit routines is hidden at compile
86 * time.
87 *
88 * Since we want Curl to work properly under the VMS DCL shell and Unix
89 * shells under VMS, this routine should compile correctly regardless of
90 * the settings.
91 */
92
vms_special_exit(int code,int vms_show)93 void vms_special_exit(int code, int vms_show)
94 {
95 int vms_code;
96
97 /* The Posix exit mode is only available after VMS 7.0 */
98 #if __CRTL_VER >= 70000000
99 if(is_vms_shell() == 0) {
100 decc$__posix_exit(code);
101 }
102 #endif
103
104 if(code > CURL_LAST) { /* If CURL_LAST exceeded then */
105 vms_code = CURL_LAST; /* curlmsg.h is out of sync. */
106 }
107 else {
108 vms_code = vms_cond[code] | vms_show;
109 }
110 decc$exit(vms_code);
111 }
112
113 #if defined(__DECC) && !defined(__VAX) && \
114 defined(__CRTL_VER) && (__CRTL_VER >= 70301000)
115
116 /*
117 * 2004-09-19 SMS.
118 *
119 * decc_init()
120 *
121 * On non-VAX systems, use LIB$INITIALIZE to set a collection of C
122 * RTL features without using the DECC$* logical name method, nor
123 * requiring the user to define the corresponding logical names.
124 */
125
126 /* Structure to hold a DECC$* feature name and its desired value. */
127 struct decc_feat_t {
128 char *name;
129 int value;
130 };
131
132 /* Array of DECC$* feature names and their desired values. */
133 static const struct decc_feat_t decc_feat_array[] = {
134 /* Preserve command-line case with SET PROCESS/PARSE_STYLE=EXTENDED */
135 { "DECC$ARGV_PARSE_STYLE", 1 },
136 /* Preserve case for file names on ODS5 disks. */
137 { "DECC$EFS_CASE_PRESERVE", 1 },
138 /* Enable multiple dots (and most characters) in ODS5 file names,
139 while preserving VMS-ness of ";version". */
140 { "DECC$EFS_CHARSET", 1 },
141 /* List terminator. */
142 { (char *)NULL, 0 }
143 };
144
145 /* Flag to sense if decc_init() was called. */
146 static int decc_init_done = -1;
147
148 /* LIB$INITIALIZE initialization function. */
decc_init(void)149 static void decc_init(void)
150 {
151 int feat_index;
152 int feat_value;
153 int feat_value_max;
154 int feat_value_min;
155 int i;
156 int sts;
157
158 /* Set the global flag to indicate that LIB$INITIALIZE worked. */
159 decc_init_done = 1;
160
161 /* Loop through all items in the decc_feat_array[]. */
162 for(i = 0; decc_feat_array[i].name != NULL; i++) {
163
164 /* Get the feature index. */
165 feat_index = decc$feature_get_index(decc_feat_array[i].name);
166
167 if(feat_index >= 0) {
168 /* Valid item. Collect its properties. */
169 feat_value = decc$feature_get_value(feat_index, 1);
170 feat_value_min = decc$feature_get_value(feat_index, 2);
171 feat_value_max = decc$feature_get_value(feat_index, 3);
172
173 if((decc_feat_array[i].value >= feat_value_min) &&
174 (decc_feat_array[i].value <= feat_value_max)) {
175 /* Valid value. Set it if necessary. */
176 if(feat_value != decc_feat_array[i].value) {
177 sts = decc$feature_set_value(feat_index, 1,
178 decc_feat_array[i].value);
179 }
180 }
181 else {
182 /* Invalid DECC feature value. */
183 printf(" INVALID DECC FEATURE VALUE, %d: %d <= %s <= %d.\n",
184 feat_value,
185 feat_value_min, decc_feat_array[i].name, feat_value_max);
186 }
187 }
188 else {
189 /* Invalid DECC feature name. */
190 printf(" UNKNOWN DECC FEATURE: %s.\n", decc_feat_array[i].name);
191 }
192
193 }
194 }
195
196 /* Get "decc_init()" into a valid, loaded LIB$INITIALIZE PSECT. */
197
198 #pragma nostandard
199
200 /* Establish the LIB$INITIALIZE PSECTs, with proper alignment and
201 other attributes. Note that "nopic" is significant only on VAX. */
202 #pragma extern_model save
203 #pragma extern_model strict_refdef "LIB$INITIALIZ" 2, nopic, nowrt
204 const int spare[8] = {0};
205 #pragma extern_model strict_refdef "LIB$INITIALIZE" 2, nopic, nowrt
206 void (*const x_decc_init)() = decc_init;
207 #pragma extern_model restore
208
209 /* Fake reference to ensure loading the LIB$INITIALIZE PSECT. */
210 #pragma extern_model save
211 int LIB$INITIALIZE(void);
212 #pragma extern_model strict_refdef
213 int dmy_lib$initialize = (int) LIB$INITIALIZE;
214 #pragma extern_model restore
215
216 #pragma standard
217
218 #endif /* __DECC && !__VAX && __CRTL_VER && __CRTL_VER >= 70301000 */
219
220 #endif /* __VMS */
221
