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f3ff481f31
This is a program for VMS that corresponds to util/shlib_wrap.sh. Reviewed-by: Rich Salz <rsalz@openssl.org>
114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/*
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* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* This program allows for easy execution of programs in the OpenSSL build
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* directory, in a manner that's similar to how util/shlib_wrap.sh. Simply
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* take the command you want to execute and prefix that with
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* 'mcr [.util]shlib_wrap', for example:
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*
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* $ mcr [.util]shlib_wrap mcr [.apps]openssl s_client -connect www.openssl.org:443
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*/
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#ifndef __VMS
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# error "VMS ONLY!"
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#endif
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#include <stdio.h>
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#include <descrip.h>
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#include <ssdef.h>
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#include <lib$routines.h>
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{-
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use File::Spec::Functions qw(rel2abs);
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our $sv = sprintf "%02d%02d", $config{shlib_major}, $config{shlib_minor};
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our $pz = $config{pointer_size};
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our $bldd = rel2abs($config{builddir});
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""
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-}
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/* The logical name table we check and affect */
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$DESCRIPTOR(lnm_process_table, "LNM$PROCESS_TABLE");
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/* The first logical name we deal with, the buffer for its old value,
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* and its temporary new value
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*/
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const $DESCRIPTOR(lnm1, "OSSL$LIBCRYPTO{- $sv -}_SHR{- $pz -}");
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char lnm1oldbuf[256]; short lnm1oldlen = 0;
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$DESCRIPTOR(lnm1old, lnm1oldbuf);
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const $DESCRIPTOR(lnm1new, "{- $bldd -}OSSL$LIBCRYPTO{- $sv -}_SHR{- $pz -}.EXE");
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/* The second logical name we deal with, the buffer for its old value,
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* and its temporary new value
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*/
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const $DESCRIPTOR(lnm2, "OSSL$LIBSSL{- $sv -}_SHR{- $pz -}");
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char lnm2oldbuf[256]; short lnm2oldlen = 0;
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$DESCRIPTOR(lnm2old, lnm2oldbuf);
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const $DESCRIPTOR(lnm2new, "{- $bldd -}OSSL$LIBSSL{- $sv -}_SHR{- $pz -}.EXE");
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/* The foreign command we want to run with the logical names above set
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* to their temporary values
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*/
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char foreign_cmd_buf[4096]; short foreign_cmd_len = 0;
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$DESCRIPTOR(foreign_cmd, foreign_cmd_buf);
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int main()
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{
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int status = 0;
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int lnm1status = 0, lnm2status = 0;
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/* Fetch the command line. lib$get_foreign() is nice enough to
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* strip away the program name, thus only returning the arguments,
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* which is exactly what we need.
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*/
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lib$get_foreign(&foreign_cmd, 0, &foreign_cmd_len);
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foreign_cmd.dsc$w_length = foreign_cmd_len;
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#ifdef DEBUG
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foreign_cmd_buf[foreign_cmd_len] = '\0';
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printf("[%d] %s\n\n", foreign_cmd_len, foreign_cmd_buf);
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#endif
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/* Fetch the first logical name value and save the status */
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lnm1status = lib$get_logical(&lnm1, &lnm1old, &lnm1oldlen,
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&lnm_process_table);
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if (lnm1status == SS$_NORMAL)
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lnm1old.dsc$w_length = lnm1oldlen;
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else if (lnm1status != SS$_NOLOGNAM)
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return lnm1status;
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/* Fetch the first logical name value and save the status */
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lnm2status = lib$get_logical(&lnm2, &lnm2old, &lnm2oldlen,
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&lnm_process_table);
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if (lnm2status == SS$_NORMAL)
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lnm2old.dsc$w_length = lnm2oldlen;
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else if (lnm2status != SS$_NOLOGNAM)
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return lnm2status;
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/* Set the temporary new values for both logical names */
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lib$set_logical(&lnm1, &lnm1new, &lnm_process_table);
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lib$set_logical(&lnm2, &lnm2new, &lnm_process_table);
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/* Execute the arguments as a command. The better be a command! */
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status = lib$spawn(&foreign_cmd);
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/* If the logical names we set had old values, restore them.
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* Otherwise, simply delete their current values.
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*/
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if (lnm1status == SS$_NORMAL)
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lib$set_logical(&lnm1, &lnm1old, &lnm_process_table);
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else
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lib$delete_logical(&lnm1, &lnm_process_table);
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if (lnm2status == SS$_NORMAL)
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lib$set_logical(&lnm2, &lnm2old, &lnm_process_table);
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else
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lib$delete_logical(&lnm2, &lnm_process_table);
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/* Return the status from the execution of the foreign command */
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return status;
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}
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