Force argv to be an array of long pointers on VMS

[openssl.git] / apps / vms_decc_init.c

diff --git a/apps/vms_decc_init.c b/apps/vms_decc_init.c
index 3b6de11978a5f82b45b606491c4c373a86cdbacc..ecf21afb6ea69201bb2c55b9d5c628a45ffc1969 100644 (file)
--- a/apps/vms_decc_init.c
+++ b/apps/vms_decc_init.c
@@ -1,3 +1,55 @@
+/*
+ * Written by sms and contributed to the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2010 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
 #if defined( __VMS) && !defined( OPENSSL_NO_DECC_INIT) && \
  defined( __DECC) && !defined( __VAX) && (__CRTL_VER >= 70301000)
 # define USE_DECC_INIT 1
@@ -5,23 +57,19 @@
 
 #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 +105,43 @@ 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)