apps/vms_decc_init.c

   1 /*
   2  * Written by sms and contributed to the OpenSSL project.
   3  */
   4 /* ====================================================================
   5  * Copyright (c) 2010 The OpenSSL Project.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the
  17  *    distribution.
  18  *
  19  * 3. All advertising materials mentioning features or use of this
  20  *    software must display the following acknowledgment:
  21  *    "This product includes software developed by the OpenSSL Project
  22  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  23  *
  24  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  25  *    endorse or promote products derived from this software without
  26  *    prior written permission. For written permission, please contact
  27  *    licensing@OpenSSL.org.
  28  *
  29  * 5. Products derived from this software may not be called "OpenSSL"
  30  *    nor may "OpenSSL" appear in their names without prior written
  31  *    permission of the OpenSSL Project.
  32  *
  33  * 6. Redistributions of any form whatsoever must retain the following
  34  *    acknowledgment:
  35  *    "This product includes software developed by the OpenSSL Project
  36  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  37  *
  38  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  39  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  41  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  42  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  43  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  44  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  45  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  46  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  47  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  48  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  49  * OF THE POSSIBILITY OF SUCH DAMAGE.
  50  * ====================================================================
  51  */
  52
  53 #if defined( __VMS) && !defined( OPENSSL_NO_DECC_INIT) && \
  54  defined( __DECC) && !defined( __VAX) && (__CRTL_VER >= 70301000)
  55 # define USE_DECC_INIT 1
  56 #endif
  57
  58 #ifdef USE_DECC_INIT
  59
  60 /*
  61  * ----------------------------------------------------------------------
  62  * decc_init() On non-VAX systems, uses LIB$INITIALIZE to set a collection
  63  * of C RTL features without using the DECC$* logical name method.
  64  * ----------------------------------------------------------------------
  65  */
  66
  67 # include <stdio.h>
  68 # include <stdlib.h>
  69 # include <unixlib.h>
  70
  71 /* Global storage. */
  72
  73 /* Flag to sense if decc_init() was called. */
  74
  75 int decc_init_done = -1;
  76
  77 /* Structure to hold a DECC$* feature name and its desired value. */
  78
  79 typedef struct {
  80     char *name;
  81     int value;
  82 } decc_feat_t;
  83
  84 /*
  85  * Array of DECC$* feature names and their desired values. Note:
  86  * DECC$ARGV_PARSE_STYLE is the urgent one.
  87  */
  88
  89 decc_feat_t decc_feat_array[] = {
  90     /* Preserve command-line case with SET PROCESS/PARSE_STYLE=EXTENDED */
  91     {"DECC$ARGV_PARSE_STYLE", 1},
  92
  93     /* Preserve case for file names on ODS5 disks. */
  94     {"DECC$EFS_CASE_PRESERVE", 1},
  95
  96     /*
  97      * Enable multiple dots (and most characters) in ODS5 file names, while
  98      * preserving VMS-ness of ";version".
  99      */
 100     {"DECC$EFS_CHARSET", 1},
 101
 102     /* List terminator. */
 103     {(char *)NULL, 0}
 104 };
 105
 106 char **copy_argv(int *argc, char *argv[])
 107 {
 108     /*-
 109      * The note below is for historical purpose.  On VMS now we always
 110      * copy argv "safely."
 111      *
 112      * 2011-03-22 SMS.
 113      * If we have 32-bit pointers everywhere, then we're safe, and
 114      * we bypass this mess, as on non-VMS systems.
 115      * Problem 1: Compaq/HP C before V7.3 always used 32-bit
 116      * pointers for argv[].
 117      * Fix 1: For a 32-bit argv[], when we're using 64-bit pointers
 118      * everywhere else, we always allocate and use a 64-bit
 119      * duplicate of argv[].
 120      * Problem 2: Compaq/HP C V7.3 (Alpha, IA64) before ECO1 failed
 121      * to NULL-terminate a 64-bit argv[].  (As this was written, the
 122      * compiler ECO was available only on IA64.)
 123      * Fix 2: Unless advised not to (VMS_TRUST_ARGV), we test a
 124      * 64-bit argv[argc] for NULL, and, if necessary, use a
 125      * (properly) NULL-terminated (64-bit) duplicate of argv[].
 126      * The same code is used in either case to duplicate argv[].
 127      * Some of these decisions could be handled in preprocessing,
 128      * but the code tends to get even uglier, and the penalty for
 129      * deciding at compile- or run-time is tiny.
 130      */
 131
 132     int i, count = *argc;
 133     char **newargv = (char **)OPENSSL_malloc((count + 1) * sizeof *newargv);
 134
 135     for (i = 0; i < count; i++)
 136         newargv[i] = argv[i];
 137     newargv[i] = NULL;
 138     *argc = i;
 139     return newargv;
 140 }
 141
 142 /* LIB$INITIALIZE initialization function. */
 143
 144 static void decc_init(void)
 145 {
 146     char *openssl_debug_decc_init;
 147     int verbose = 0;
 148     int feat_index;
 149     int feat_value;
 150     int feat_value_max;
 151     int feat_value_min;
 152     int i;
 153     int sts;
 154
 155     /* Get debug option. */
 156     openssl_debug_decc_init = getenv("OPENSSL_DEBUG_DECC_INIT");
 157     if (openssl_debug_decc_init != NULL) {
 158         verbose = strtol(openssl_debug_decc_init, NULL, 10);
 159         if (verbose <= 0) {
 160             verbose = 1;
 161         }
 162     }
 163
 164     /* Set the global flag to indicate that LIB$INITIALIZE worked. */
 165     decc_init_done = 1;
 166
 167     /* Loop through all items in the decc_feat_array[]. */
 168
 169     for (i = 0; decc_feat_array[i].name != NULL; i++) {
 170         /* Get the feature index. */
 171         feat_index = decc$feature_get_index(decc_feat_array[i].name);
 172         if (feat_index >= 0) {
 173             /* Valid item.  Collect its properties. */
 174             feat_value = decc$feature_get_value(feat_index, 1);
 175             feat_value_min = decc$feature_get_value(feat_index, 2);
 176             feat_value_max = decc$feature_get_value(feat_index, 3);
 177
 178             /* Check the validity of our desired value. */
 179             if ((decc_feat_array[i].value >= feat_value_min) &&
 180                 (decc_feat_array[i].value <= feat_value_max)) {
 181                 /* Valid value.  Set it if necessary. */
 182                 if (feat_value != decc_feat_array[i].value) {
 183                     sts = decc$feature_set_value(feat_index,
 184                                                  1, decc_feat_array[i].value);
 185
 186                     if (verbose > 1) {
 187                         fprintf(stderr, " %s = %d, sts = %d.\n",
 188                                 decc_feat_array[i].name,
 189                                 decc_feat_array[i].value, sts);
 190                     }
 191                 }
 192             } else {
 193                 /* Invalid DECC feature value. */
 194                 fprintf(stderr,
 195                         " INVALID DECC$FEATURE VALUE, %d: %d <= %s <= %d.\n",
 196                         feat_value,
 197                         feat_value_min, decc_feat_array[i].name,
 198                         feat_value_max);
 199             }
 200         } else {
 201             /* Invalid DECC feature name. */
 202             fprintf(stderr,
 203                     " UNKNOWN DECC$FEATURE: %s.\n", decc_feat_array[i].name);
 204         }
 205     }
 206
 207     if (verbose > 0) {
 208         fprintf(stderr, " DECC_INIT complete.\n");
 209     }
 210 }
 211
 212 /* Get "decc_init()" into a valid, loaded LIB$INITIALIZE PSECT. */
 213
 214 # pragma nostandard
 215
 216 /*
 217  * Establish the LIB$INITIALIZE PSECTs, with proper alignment and other
 218  * attributes.  Note that "nopic" is significant only on VAX.
 219  */
 220 # pragma extern_model save
 221
 222 # if __INITIAL_POINTER_SIZE == 64
 223 #  define PSECT_ALIGN 3
 224 # else
 225 #  define PSECT_ALIGN 2
 226 # endif
 227
 228 # pragma extern_model strict_refdef "LIB$INITIALIZ" PSECT_ALIGN, nopic, nowrt
 229 const int spare[8] = { 0 };
 230
 231 # pragma extern_model strict_refdef "LIB$INITIALIZE" PSECT_ALIGN, nopic, nowrt
 232 void (*const x_decc_init) () = decc_init;
 233
 234 # pragma extern_model restore
 235
 236 /* Fake reference to ensure loading the LIB$INITIALIZE PSECT. */
 237
 238 # pragma extern_model save
 239
 240 int LIB$INITIALIZE(void);
 241
 242 # pragma extern_model strict_refdef
 243 int dmy_lib$initialize = (int)LIB$INITIALIZE;
 244
 245 # pragma extern_model restore
 246
 247 # pragma standard
 248
 249 #else                           /* def USE_DECC_INIT */
 250
 251 /* Dummy code to avoid a %CC-W-EMPTYFILE complaint. */
 252 int decc_init_dummy(void);
 253
 254 #endif                          /* def USE_DECC_INIT */