| Amit Daniel Kachhap | e6a01f5 | 2011-07-20 11:45:59 +0530 | [diff] [blame] | 1 | /****************************************************************************
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| 2 | * Copyright (c) 1998,2006 Free Software Foundation, Inc. *
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| 3 | * *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a *
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| 5 | * copy of this software and associated documentation files (the *
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| 6 | * "Software"), to deal in the Software without restriction, including *
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| 7 | * without limitation the rights to use, copy, modify, merge, publish, *
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| 8 | * distribute, distribute with modifications, sublicense, and/or sell *
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| 9 | * copies of the Software, and to permit persons to whom the Software is *
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| 10 | * furnished to do so, subject to the following conditions: *
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| 11 | * *
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| 12 | * The above copyright notice and this permission notice shall be included *
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| 13 | * in all copies or substantial portions of the Software. *
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| 14 | * *
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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| 22 | * *
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| 23 | * Except as contained in this notice, the name(s) of the above copyright *
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| 24 | * holders shall not be used in advertising or otherwise to promote the *
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| 25 | * sale, use or other dealings in this Software without prior written *
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| 26 | * authorization. *
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| 27 | ****************************************************************************/
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| 28 |
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| 29 | /*
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| 30 | * $Id: cmpdef.cmd,v 1.3 2006/04/22 23:14:50 tom Exp $
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| 31 | *
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| 32 | * Author: Juan Jose Garcia Ripoll <worm@arrakis.es>.
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| 33 | * Webpage: http://www.arrakis.es/~worm/
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| 34 | *
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| 35 | * cmpdef.cmd - compares two .def files, checking whether they have
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| 36 | * the same entries with the same export codes.
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| 37 | *
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| 38 | * returns 0 if there are no conflicts between the files -- that is,
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| 39 | * the newer one can replace the older one.
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| 40 | *
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| 41 | * returns 1 when either of the files is not properly formatted and
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| 42 | * when there are conflicts: two symbols having the same export code.
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| 43 | *
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| 44 | * the standard output shows a list with newly added symbols, plus
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| 45 | * replaced symbols and conflicts.
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| 46 | */
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| 47 | parse arg def_file1 def_file2
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| 48 |
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| 49 | def_file1 = translate(def_file1,'\','/')
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| 50 | def_file2 = translate(def_file2,'\','/')
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| 51 |
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| 52 | call CleanQueue
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| 53 |
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| 54 | /*
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| 55 | * `cmp' is zero when the last file is valid and upward compatible
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| 56 | * `numbers' is the stem where symbols are stored
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| 57 | */
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| 58 | cmp = 0
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| 59 | names. = ''
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| 60 | numbers. = 0
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| 61 |
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| 62 | /*
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| 63 | * This sed expression cleans empty lines, comments and special .DEF
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| 64 | * commands, such as LIBRARY..., EXPORTS..., etc
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| 65 | */
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| 66 | tidy_up = '"s/[ ][ ]*/ /g;s/;.*//g;/^[ ]*$/d;/^[a-zA-Z]/d;"'
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| 67 |
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| 68 | /*
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| 69 | * First we find all public symbols from the original DLL. All this
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| 70 | * information is pushed into a REXX private list with the RXQUEUE
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| 71 | * utility program.
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| 72 | */
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| 73 | '@echo off'
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| 74 | 'type' def_file1 '| sed' tidy_up '| sort | rxqueue'
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| 75 |
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| 76 | do while queued() > 0
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| 77 | /*
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| 78 | * We retrieve the symbol name (NAME) and its number (NUMBER)
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| 79 | */
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| 80 | parse pull '"' name '"' '@'number rest
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| 81 | if number = '' || name = '' then
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| 82 | do
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| 83 | say 'Corrupted file' def_file1
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| 84 | say 'Symbol' name 'has no number'
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| 85 | exit 1
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| 86 | end
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| 87 | else
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| 88 | do
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| 89 | numbers.name = number
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| 90 | names.number = name
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| 91 | end
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| 92 | end
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| 93 |
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| 94 | /*
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| 95 | * Now we find all public symbols from the new DLL, and compare.
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| 96 | */
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| 97 | 'type' def_file2 '| sed' tidy_up '| sort | rxqueue'
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| 98 |
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| 99 | do while queued() > 0
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| 100 | parse pull '"' name '"' '@'number rest
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| 101 | if name = '' | number = '' then
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| 102 | do
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| 103 | say 'Corrupted file' def_file2
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| 104 | say 'Symbol' name 'has no number'
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| 105 | exit 1
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| 106 | end
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| 107 | if numbers.name = 0 then
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| 108 | do
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| 109 | cmp = 1
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| 110 | if names.number = '' then
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| 111 | say 'New symbol' name 'with code @'number
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| 112 | else
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| 113 | say 'Conflict old =' names.number ', new =' name 'at @'number
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| 114 | end
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| 115 | else if numbers.name \= number then
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| 116 | do
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| 117 | cmp = 1
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| 118 | say name 'Symbol' name 'changed from @'numbers.name 'to @'number
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| 119 | end
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| 120 | end /* do */
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| 121 |
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| 122 | exit cmp
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| 123 |
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| 124 | /*
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| 125 | * Cleans the REXX queue by pulling and forgetting every line.
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| 126 | * This is needed, at least, when `cmpdef.cmd' starts, because an aborted
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| 127 | * REXX program might have left some rubbish in.
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| 128 | */
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| 129 | CleanQueue: procedure
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| 130 | do while queued() > 0
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| 131 | parse pull foo
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| 132 | end
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| 133 | return
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| 134 |
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