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415 lines
10 KiB
415 lines
10 KiB
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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hextract.c
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Abstract:
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This is the main module for a header the file extractor.
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Author:
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Andre Vachon (andreva) 13-Feb-1992
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Mark Lucovsky (markl) 28-Jan-1991
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Revision History:
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--*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <common.ver>
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//
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// Function declarations
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//
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int
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ProcessParameters(
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int argc,
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char *argv[]
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);
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void
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ProcessSourceFile( void );
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void
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ProcessLine(
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char *s
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);
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//
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// Global Data
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//
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unsigned char LineFiltering = 0;
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char *LineTag;
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char *ExcludeLineTag;
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char *MultiLineTagStart;
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char *MultiLineTagEnd;
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char *CommentDelimiter = "//";
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char *OutputFileName;
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char *SourceFileName;
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char **SourceFileList;
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int SourceFileCount;
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FILE *SourceFile, *OutputFile;
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#define STRING_BUFFER_SIZE 1024
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char StringBuffer[STRING_BUFFER_SIZE];
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#define BUILD_VER_COMMENT "/*++ BUILD Version: "
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#define BUILD_VER_COMMENT_LENGTH (sizeof( BUILD_VER_COMMENT )-1)
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int OutputVersion = 0;
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#define szVERSION "1.3"
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char const szUsage[] =
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"Microsoft (R) HEXTRACT Version " szVERSION " (NT)\n"
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VER_LEGALCOPYRIGHT_STR ". All rights reserved.\n"
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"\n"
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"Usage: HEXTRACT [options] filename1 [filename2 ...]\n"
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"\n"
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"Options:\n"
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" -f - filtering is turned on:\n"
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" ULONG, UCHAR, USHORT & NTSTATUS are\n"
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" replaced with DWORD, BYTE, WORD & DWORD.\n"
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" -f2 - Same as -f except ULONGLONG and ULONG_PTR\n"
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" isn't converted\n"
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" -o filename - required existing output filename;\n"
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" output is appended to filename\n"
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" -xt string - supplies the tag for excluding one line\n"
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" -lt string - supplies the tag for extracting one line\n"
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" -bt string1 string2 - supplies the starting and ending tags for\n"
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" extracting multiple lines\n"
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" filename1 [filename2 ...] - supplies files from which the definitions\n"
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" are extracted\n"
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"\n"
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"To be parsed properly, the tag strings must be located within a comment\n"
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"delimited by //\n"
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;
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int
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__cdecl main( argc, argv )
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int argc;
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char *argv[];
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{
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char achver[BUILD_VER_COMMENT_LENGTH];
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if (!ProcessParameters(argc, argv) || NULL == OutputFileName) {
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fprintf(stderr, szUsage);
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return 1;
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}
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if ( (OutputFile = fopen(OutputFileName,"r+")) == 0) {
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fprintf(stderr,"HEXTRACT: Unable to open output file %s for update access\n",OutputFileName);
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return 1;
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}
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if (fseek(OutputFile, 0L, SEEK_END) == -1) {
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fprintf(stderr, "HEXTRACT: Unable to seek to end of %s\n", OutputFileName);
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return 1;
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}
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OutputVersion = 0;
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#ifdef HEXTRACT_DEBUG
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fprintf(
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stderr,
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"%s\n%s\n%s\n%s\n",
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LineTag,
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ExcludeLineTag,
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MultiLineTagStart,
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MultiLineTagEnd);
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#endif
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while ( SourceFileCount-- ) {
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SourceFileName = *SourceFileList++;
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if ( (SourceFile = fopen(SourceFileName,"r")) == 0) {
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fprintf(stderr,"HEXTRACT: Unable to open source file %s for read access\n",SourceFileName);
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return 1;
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}
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ProcessSourceFile();
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fclose(SourceFile);
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}
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if (fseek(OutputFile, 0L, SEEK_SET) == -1) {
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fprintf(stderr, "HEXTRACT: Unable to seek to start of %s\n", OutputFileName);
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return 1;
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}
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if (1 == fread(achver, BUILD_VER_COMMENT_LENGTH, 1, OutputFile) &&
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!strncmp(achver, BUILD_VER_COMMENT, BUILD_VER_COMMENT_LENGTH)) {
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if (fseek(OutputFile, (long)BUILD_VER_COMMENT_LENGTH, SEEK_SET) == -1) {
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fprintf(stderr, "HEXTRACT: Unable to seek past comments in %s\n", OutputFileName);
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return 1;
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}
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fprintf(OutputFile, "%04d", OutputVersion);
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}
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if (fseek(OutputFile, 0L, SEEK_END) == -1) {
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fprintf(stderr, "HEXTRACT: Unable to seek to end of %s\n", OutputFileName);
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return 1;
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}
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fclose(OutputFile);
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return( 0 );
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}
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int
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ProcessParameters(
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int argc,
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char *argv[]
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)
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{
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char c, *p;
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while (--argc) {
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p = *++argv;
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//
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// if we have a delimiter for a parameter, case throught the valid
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// parameter. Otherwise, the rest of the parameters are the list of
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// input files.
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//
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if (*p == '/' || *p == '-') {
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//
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// Switch on all the valid delimiters. If we don't get a valid
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// one, return with an error.
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//
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c = *++p;
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switch (toupper( c )) {
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case 'F':
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c = *++p;
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if ( (toupper ( c )) == '2')
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LineFiltering = 2;
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else
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LineFiltering = 1;
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break;
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case 'O':
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argc--, argv++;
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OutputFileName = *argv;
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break;
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case 'L':
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c = *++p;
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if ( (toupper ( c )) != 'T')
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return 0;
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argc--, argv++;
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LineTag = *argv;
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break;
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case 'B':
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c = *++p;
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if ( (toupper ( c )) != 'T')
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return 0;
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argc--, argv++;
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MultiLineTagStart = *argv;
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argc--, argv++;
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MultiLineTagEnd = *argv;
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break;
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case 'X':
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c = *++p;
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if ( (toupper ( c )) != 'T')
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return 0;
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argc--, argv++;
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ExcludeLineTag = *argv;
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break;
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default:
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return 0;
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}
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} else {
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//
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// Make the assumptionthat we have a valid command line if and
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// only if we have a list of filenames.
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//
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SourceFileList = argv;
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SourceFileCount = argc;
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return 1;
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}
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}
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return 0;
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}
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void
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ProcessSourceFile( void )
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{
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char *s;
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char *comment;
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char *tag;
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char *test;
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s = fgets(StringBuffer,STRING_BUFFER_SIZE,SourceFile);
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if (s) {
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if (!strncmp( s, BUILD_VER_COMMENT, BUILD_VER_COMMENT_LENGTH )) {
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OutputVersion += atoi( s + BUILD_VER_COMMENT_LENGTH );
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}
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}
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while ( s ) {
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//
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// Check for a block with delimiters
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//
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if (NULL != MultiLineTagStart) {
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comment = strstr(s,CommentDelimiter);
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if ( comment ) {
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tag = strstr(comment,MultiLineTagStart);
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if ( tag ) {
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//
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// Now that we have found an opening tag, check each
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// following line for the closing tag, and then include it
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// in the ouput.
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//
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s = fgets(StringBuffer,STRING_BUFFER_SIZE,SourceFile);
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while ( s ) {
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int fProcess = 1;
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comment = strstr(s,CommentDelimiter);
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if ( comment ) {
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tag = strstr(comment,MultiLineTagEnd);
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if ( tag ) {
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goto bottom;
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}
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if (NULL != ExcludeLineTag &&
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strstr(comment,ExcludeLineTag)) {
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fProcess = 0;
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}
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}
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if (fProcess) {
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ProcessLine(s);
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}
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s = fgets(StringBuffer,STRING_BUFFER_SIZE,SourceFile);
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}
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fprintf(stderr,
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"HEXTRACT: %s without matching %s in %s\n",
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MultiLineTagStart,
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MultiLineTagEnd,
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OutputFileName);
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exit(1);
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}
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}
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}
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//
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// Check for a single line to output.
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//
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if (NULL != LineTag) {
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comment = strstr(s,CommentDelimiter);
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if ( comment ) {
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tag = strstr(comment,LineTag);
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if ( tag ) {
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*comment++ = '\n';
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*comment = '\0';
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ProcessLine(s);
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goto bottom;
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}
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}
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}
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bottom:
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s = fgets(StringBuffer,STRING_BUFFER_SIZE,SourceFile);
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}
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}
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void
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ProcessLine(
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char *s
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)
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{
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char *t;
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char *s1;
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if (LineFiltering) {
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s1 = s;
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//
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// This should be replaced by a data file describing an input token
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// and an output token which would be used for the filtering.
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//
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while (t = strstr(s1,"ULONG")) {
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if (LineFiltering == 2) {
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if (!memcmp(t, "ULONGLONG", 9)) {
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s1+=9;
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} else if (!memcmp(t, "ULONG_PTR", 9)) {
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s1+=9;
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} else {
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memcpy(t,"DWORD",5);
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}
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} else {
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memcpy(t,"DWORD",5);
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}
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}
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while (t = strstr(s,"UCHAR"))
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memcpy(t,"BYTE ",5);
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while (t = strstr(s,"USHORT"))
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memcpy(t,"WORD ",6);
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while (t = strstr(s,"NTSTATUS"))
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memcpy(t,"DWORD ",8);
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}
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fputs(s,OutputFile);
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}
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