X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=apps%2Fvms_decc_init.c;h=f83f7168efe56e7549bc6130784eb5d25581a855;hb=bb6923945ee61b024c841f8131416c3c35cc9746;hp=3b6de11978a5f82b45b606491c4c373a86cdbacc;hpb=0f113f3ee4d629ef9a4a30911b22b224772085e5;p=openssl.git

diff --git a/apps/vms_decc_init.c b/apps/vms_decc_init.c
index 3b6de11978..f83f7168ef 100644
--- a/apps/vms_decc_init.c
+++ b/apps/vms_decc_init.c
@@ -1,3 +1,12 @@
+/*
+ * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
 #if defined( __VMS) && !defined( OPENSSL_NO_DECC_INIT) && \
  defined( __DECC) && !defined( __VAX) && (__CRTL_VER >= 70301000)
 # define USE_DECC_INIT 1
@@ -5,23 +14,19 @@
 
 #ifdef USE_DECC_INIT
 
-/*-
- * 2010-04-26 SMS.
- *
- *----------------------------------------------------------------------
- *
- *       decc_init()
- *
- *    On non-VAX systems, uses LIB$INITIALIZE to set a collection of C
- *    RTL features without using the DECC$* logical name method.
- *
- *----------------------------------------------------------------------
+/*
+ * ----------------------------------------------------------------------
+ * decc_init() On non-VAX systems, uses LIB$INITIALIZE to set a collection
+ * of C RTL features without using the DECC$* logical name method.
+ * ----------------------------------------------------------------------
  */
 
 # include <stdio.h>
 # include <stdlib.h>
 # include <unixlib.h>
 
+# include "apps.h"
+
 /* Global storage. */
 
 /* Flag to sense if decc_init() was called. */
@@ -57,6 +62,43 @@ decc_feat_t decc_feat_array[] = {
     {(char *)NULL, 0}
 };
 
+
+char **copy_argv(int *argc, char *argv[])
+{
+    /*-
+     * The note below is for historical purpose.  On VMS now we always
+     * copy argv "safely."
+     *
+     * 2011-03-22 SMS.
+     * If we have 32-bit pointers everywhere, then we're safe, and
+     * we bypass this mess, as on non-VMS systems.
+     * Problem 1: Compaq/HP C before V7.3 always used 32-bit
+     * pointers for argv[].
+     * Fix 1: For a 32-bit argv[], when we're using 64-bit pointers
+     * everywhere else, we always allocate and use a 64-bit
+     * duplicate of argv[].
+     * Problem 2: Compaq/HP C V7.3 (Alpha, IA64) before ECO1 failed
+     * to NULL-terminate a 64-bit argv[].  (As this was written, the
+     * compiler ECO was available only on IA64.)
+     * Fix 2: Unless advised not to (VMS_TRUST_ARGV), we test a
+     * 64-bit argv[argc] for NULL, and, if necessary, use a
+     * (properly) NULL-terminated (64-bit) duplicate of argv[].
+     * The same code is used in either case to duplicate argv[].
+     * Some of these decisions could be handled in preprocessing,
+     * but the code tends to get even uglier, and the penalty for
+     * deciding at compile- or run-time is tiny.
+     */
+
+    int i, count = *argc;
+    char **newargv = app_malloc(sizeof(*newargv) * (count + 1), "argv copy");
+
+    for (i = 0; i < count; i++)
+        newargv[i] = argv[i];
+    newargv[i] = NULL;
+    *argc = i;
+    return newargv;
+}
+
 /* LIB$INITIALIZE initialization function. */
 
 static void decc_init(void)