Annotation of embedaddon/curl/src/tool_vms.c, revision 1.1.1.1
1.1 misho 1: /***************************************************************************
2: * _ _ ____ _
3: * Project ___| | | | _ \| |
4: * / __| | | | |_) | |
5: * | (__| |_| | _ <| |___
6: * \___|\___/|_| \_\_____|
7: *
8: * Copyright (C) 1998 - 2019, 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.haxx.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: ***************************************************************************/
22: #include "tool_setup.h"
23:
24: #ifdef __VMS
25:
26: #if defined(__DECC) && !defined(__VAX) && \
27: defined(__CRTL_VER) && (__CRTL_VER >= 70301000)
28: #include <unixlib.h>
29: #endif
30:
31: #define ENABLE_CURLX_PRINTF
32: #include "curlx.h"
33:
34: #include "curlmsg_vms.h"
35: #include "tool_vms.h"
36:
37: #include "memdebug.h" /* keep this as LAST include */
38:
39: void decc$__posix_exit(int __status);
40: void decc$exit(int __status);
41:
42: static int vms_shell = -1;
43:
44: /* VMS has a DCL shell and and also has Unix shells ported to it.
45: * When curl is running under a Unix shell, we want it to be as much
46: * like Unix as possible.
47: */
48: int is_vms_shell(void)
49: {
50: char *shell;
51:
52: /* Have we checked the shell yet? */
53: if(vms_shell >= 0)
54: return vms_shell;
55:
56: shell = getenv("SHELL");
57:
58: /* No shell, means DCL */
59: if(shell == NULL) {
60: vms_shell = 1;
61: return 1;
62: }
63:
64: /* Have to make sure some one did not set shell to DCL */
65: if(strcmp(shell, "DCL") == 0) {
66: vms_shell = 1;
67: return 1;
68: }
69:
70: vms_shell = 0;
71: return 0;
72: }
73:
74: /*
75: * VMS has two exit() routines. When running under a Unix style shell, then
76: * Unix style and the __posix_exit() routine is used.
77: *
78: * When running under the DCL shell, then the VMS encoded codes and decc$exit()
79: * is used.
80: *
81: * We can not use exit() or return a code from main() because the actual
82: * routine called depends on both the compiler version, compile options, and
83: * feature macro settings, and one of the exit routines is hidden at compile
84: * time.
85: *
86: * Since we want Curl to work properly under the VMS DCL shell and Unix
87: * shells under VMS, this routine should compile correctly regardless of
88: * the settings.
89: */
90:
91: void vms_special_exit(int code, int vms_show)
92: {
93: int vms_code;
94:
95: /* The Posix exit mode is only available after VMS 7.0 */
96: #if __CRTL_VER >= 70000000
97: if(is_vms_shell() == 0) {
98: decc$__posix_exit(code);
99: }
100: #endif
101:
102: if(code > CURL_LAST) { /* If CURL_LAST exceeded then */
103: vms_code = CURL_LAST; /* curlmsg.h is out of sync. */
104: }
105: else {
106: vms_code = vms_cond[code] | vms_show;
107: }
108: decc$exit(vms_code);
109: }
110:
111: #if defined(__DECC) && !defined(__VAX) && \
112: defined(__CRTL_VER) && (__CRTL_VER >= 70301000)
113:
114: /*
115: * 2004-09-19 SMS.
116: *
117: * decc_init()
118: *
119: * On non-VAX systems, use LIB$INITIALIZE to set a collection of C
120: * RTL features without using the DECC$* logical name method, nor
121: * requiring the user to define the corresponding logical names.
122: */
123:
124: /* Structure to hold a DECC$* feature name and its desired value. */
125: typedef struct {
126: char *name;
127: int value;
128: } decc_feat_t;
129:
130: /* Array of DECC$* feature names and their desired values. */
131: static decc_feat_t decc_feat_array[] = {
132: /* Preserve command-line case with SET PROCESS/PARSE_STYLE=EXTENDED */
133: { "DECC$ARGV_PARSE_STYLE", 1 },
134: /* Preserve case for file names on ODS5 disks. */
135: { "DECC$EFS_CASE_PRESERVE", 1 },
136: /* Enable multiple dots (and most characters) in ODS5 file names,
137: while preserving VMS-ness of ";version". */
138: { "DECC$EFS_CHARSET", 1 },
139: /* List terminator. */
140: { (char *)NULL, 0 }
141: };
142:
143: /* Flag to sense if decc_init() was called. */
144: static int decc_init_done = -1;
145:
146: /* LIB$INITIALIZE initialization function. */
147: static void decc_init(void)
148: {
149: int feat_index;
150: int feat_value;
151: int feat_value_max;
152: int feat_value_min;
153: int i;
154: int sts;
155:
156: /* Set the global flag to indicate that LIB$INITIALIZE worked. */
157: decc_init_done = 1;
158:
159: /* Loop through all items in the decc_feat_array[]. */
160: for(i = 0; decc_feat_array[i].name != NULL; i++) {
161:
162: /* Get the feature index. */
163: feat_index = decc$feature_get_index(decc_feat_array[i].name);
164:
165: if(feat_index >= 0) {
166: /* Valid item. Collect its properties. */
167: feat_value = decc$feature_get_value(feat_index, 1);
168: feat_value_min = decc$feature_get_value(feat_index, 2);
169: feat_value_max = decc$feature_get_value(feat_index, 3);
170:
171: if((decc_feat_array[i].value >= feat_value_min) &&
172: (decc_feat_array[i].value <= feat_value_max)) {
173: /* Valid value. Set it if necessary. */
174: if(feat_value != decc_feat_array[i].value) {
175: sts = decc$feature_set_value(feat_index, 1,
176: decc_feat_array[i].value);
177: }
178: }
179: else {
180: /* Invalid DECC feature value. */
181: printf(" INVALID DECC FEATURE VALUE, %d: %d <= %s <= %d.\n",
182: feat_value,
183: feat_value_min, decc_feat_array[i].name, feat_value_max);
184: }
185: }
186: else {
187: /* Invalid DECC feature name. */
188: printf(" UNKNOWN DECC FEATURE: %s.\n", decc_feat_array[i].name);
189: }
190:
191: }
192: }
193:
194: /* Get "decc_init()" into a valid, loaded LIB$INITIALIZE PSECT. */
195:
196: #pragma nostandard
197:
198: /* Establish the LIB$INITIALIZE PSECTs, with proper alignment and
199: other attributes. Note that "nopic" is significant only on VAX. */
200: #pragma extern_model save
201: #pragma extern_model strict_refdef "LIB$INITIALIZ" 2, nopic, nowrt
202: const int spare[8] = {0};
203: #pragma extern_model strict_refdef "LIB$INITIALIZE" 2, nopic, nowrt
204: void (*const x_decc_init)() = decc_init;
205: #pragma extern_model restore
206:
207: /* Fake reference to ensure loading the LIB$INITIALIZE PSECT. */
208: #pragma extern_model save
209: int LIB$INITIALIZE(void);
210: #pragma extern_model strict_refdef
211: int dmy_lib$initialize = (int) LIB$INITIALIZE;
212: #pragma extern_model restore
213:
214: #pragma standard
215:
216: #endif /* __DECC && !__VAX && __CRTL_VER && __CRTL_VER >= 70301000 */
217:
218: #endif /* __VMS */
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