360 lines
10 KiB
C
360 lines
10 KiB
C
/*
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*******************************************************************************
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*
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* Copyright (C) 1999, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: gennames.c
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 1999nov01
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* created by: Markus W. Scherer
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*
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* This program reads a binary file and creates a C source code file
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* with a byte array that contains the data of the binary file.
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*
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* 12/09/1999 weiv Added multiple file handling
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*/
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#ifdef WIN32
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#include <windows.h>
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#include <time.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include "unicode/utypes.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "filestrm.h"
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#include "toolutil.h"
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#include "uoptions.h"
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static uint16_t column=0xffff;
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/* prototypes --------------------------------------------------------------- */
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static void
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writeCCode(const char *filename, const char *destdir);
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static void
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writeObjectCode(const char *filename, const char *destdir);
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static void
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getOutFilename(const char *inFilename, const char *destdir, char *outFilename, char *entryName, const char *newSuffix);
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static void
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write8(FileStream *out, uint8_t byte);
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/* -------------------------------------------------------------------------- */
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static UOption options[]={
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UOPTION_HELP_H,
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UOPTION_HELP_QUESTION_MARK,
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UOPTION_DESTDIR,
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UOPTION_DEF("object", 'o', UOPT_NO_ARG)
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};
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extern int
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main(int argc, const char *argv[]) {
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/* read command line options */
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argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
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/* error handling, printing usage message */
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if(argc<0) {
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fprintf(stderr,
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"error in command line argument \"%s\"\n",
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argv[-argc]);
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}
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if(argc<0 || options[0].doesOccur || options[1].doesOccur) {
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fprintf(stderr,
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"usage: %s [-options] filename1 filename2 ...\n"
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"\tread each binary input file and \n"
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"\tcreate a .c file with a byte array that contains the input file's data\n"
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"\toptions:\n"
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"\t\t-h or -? or --help this usage text\n"
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"\t\t-d or --destdir destination directory, followed by the path\n"
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"\t\t-o or --object write a .obj file instead of .c\n",
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argv[0]);
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} else {
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const char *message, *filename;
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void (*writeCode)(const char *filename, const char *destdir);
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if(options[3].doesOccur) {
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message="Generating object code for %s\n";
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writeCode=&writeObjectCode;
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} else {
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message="Generating C code for %s\n";
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writeCode=&writeCCode;
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}
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while(--argc) {
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filename=getLongPathname(argv[argc]);
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fprintf(stdout, message, filename);
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column=0xffff;
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writeCode(filename, options[2].value);
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}
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}
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return 0;
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}
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static void
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writeCCode(const char *filename, const char *destdir) {
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char buffer[4096], entry[40];
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FileStream *in, *out;
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size_t i, length;
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in=T_FileStream_open(filename, "rb");
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if(in==NULL) {
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fprintf(stderr, "genccode: unable to open input file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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getOutFilename(filename, destdir, buffer, entry, ".c");
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out=T_FileStream_open(buffer, "w");
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if(out==NULL) {
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fprintf(stderr, "genccode: unable to open output file %s\n", buffer);
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exit(U_FILE_ACCESS_ERROR);
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}
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/* turn dashes in the entry name into underscores */
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length=uprv_strlen(entry);
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for(i=0; i<length; ++i) {
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if(entry[i]=='-') {
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entry[i]='_';
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}
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}
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sprintf(buffer,
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"#include \"unicode/utypes.h\"\n"
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"U_CAPI const struct {\n"
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" double bogus;\n"
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" uint8_t bytes[%ld]; \n"
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"} U_EXPORT2 %s={ 0, {\n",
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T_FileStream_size(in), entry);
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T_FileStream_writeLine(out, buffer);
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for(;;) {
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length=T_FileStream_read(in, buffer, sizeof(buffer));
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if(length==0) {
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break;
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}
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for(i=0; i<length; ++i) {
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write8(out, (uint8_t)buffer[i]);
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}
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}
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T_FileStream_writeLine(out, "\n}\n};\n");
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if(T_FileStream_error(in)) {
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fprintf(stderr, "genccode: file read error while generating from file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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if(T_FileStream_error(out)) {
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fprintf(stderr, "genccode: file write error while generating from file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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T_FileStream_close(out);
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T_FileStream_close(in);
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}
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static void
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writeObjectCode(const char *filename, const char *destdir) {
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#ifdef WIN32
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char buffer[4096], entry[40];
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struct {
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IMAGE_FILE_HEADER fileHeader;
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IMAGE_SECTION_HEADER sections[2];
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char linkerOptions[100];
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} objHeader;
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IMAGE_SYMBOL symbols[1];
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struct {
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DWORD sizeofLongNames;
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char longNames[100];
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} symbolNames;
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FileStream *in, *out;
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size_t i, entryLength, length, size;
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in=T_FileStream_open(filename, "rb");
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if(in==NULL) {
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fprintf(stderr, "genccode: unable to open input file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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/* entry have a leading '_' */
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entry[0]='_';
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getOutFilename(filename, destdir, buffer, entry+1, ".obj");
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/* turn dashes in the entry name into underscores */
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entryLength=uprv_strlen(entry);
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for(i=0; i<entryLength; ++i) {
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if(entry[i]=='-') {
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entry[i]='_';
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}
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}
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/* open the output file */
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out=T_FileStream_open(buffer, "wb");
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if(out==NULL) {
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fprintf(stderr, "genccode: unable to open output file %s\n", buffer);
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exit(U_FILE_ACCESS_ERROR);
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}
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/* populate the .obj headers */
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uprv_memset(&objHeader, 0, sizeof(objHeader));
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uprv_memset(&symbols, 0, sizeof(symbols));
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uprv_memset(&symbolNames, 0, sizeof(symbolNames));
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size=T_FileStream_size(in);
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/* write the linker export directive */
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uprv_strcpy(objHeader.linkerOptions, "-export:");
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length=8;
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uprv_strcpy(objHeader.linkerOptions+length, entry);
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length+=entryLength;
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uprv_strcpy(objHeader.linkerOptions+length, ",data ");
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length+=6;
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/* set the file header */
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objHeader.fileHeader.Machine=IMAGE_FILE_MACHINE_I386;
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objHeader.fileHeader.NumberOfSections=2;
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objHeader.fileHeader.TimeDateStamp=time(NULL);
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objHeader.fileHeader.PointerToSymbolTable=IMAGE_SIZEOF_FILE_HEADER+2*IMAGE_SIZEOF_SECTION_HEADER+length+size; /* start of symbol table */
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objHeader.fileHeader.NumberOfSymbols=1;
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/* set the section for the linker options */
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uprv_strncpy(objHeader.sections[0].Name, ".drectve", 8);
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objHeader.sections[0].SizeOfRawData=length;
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objHeader.sections[0].PointerToRawData=IMAGE_SIZEOF_FILE_HEADER+2*IMAGE_SIZEOF_SECTION_HEADER;
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objHeader.sections[0].Characteristics=IMAGE_SCN_LNK_INFO|IMAGE_SCN_LNK_REMOVE|IMAGE_SCN_ALIGN_1BYTES;
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/* set the data section */
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uprv_strncpy(objHeader.sections[1].Name, ".rdata", 6);
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objHeader.sections[1].SizeOfRawData=size;
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objHeader.sections[1].PointerToRawData=IMAGE_SIZEOF_FILE_HEADER+2*IMAGE_SIZEOF_SECTION_HEADER+length;
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objHeader.sections[1].Characteristics=IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_ALIGN_16BYTES|IMAGE_SCN_MEM_READ;
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/* set the symbol table */
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if(entryLength<=8) {
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uprv_strncpy(symbols[0].N.ShortName, entry, entryLength);
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symbolNames.sizeofLongNames=4;
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} else {
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symbols[0].N.Name.Short=0;
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symbols[0].N.Name.Long=4;
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symbolNames.sizeofLongNames=4+entryLength+1;
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uprv_strcpy(symbolNames.longNames, entry);
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}
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symbols[0].SectionNumber=2;
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symbols[0].StorageClass=IMAGE_SYM_CLASS_EXTERNAL;
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/* write the file header and the linker options section */
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T_FileStream_write(out, &objHeader, objHeader.sections[1].PointerToRawData);
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/* copy the data file into section 2 */
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for(;;) {
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length=T_FileStream_read(in, buffer, sizeof(buffer));
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if(length==0) {
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break;
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}
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T_FileStream_write(out, buffer, length);
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}
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/* write the symbol table */
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T_FileStream_write(out, symbols, IMAGE_SIZEOF_SYMBOL);
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T_FileStream_write(out, &symbolNames, symbolNames.sizeofLongNames);
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if(T_FileStream_error(in)) {
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fprintf(stderr, "genccode: file read error while generating from file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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if(T_FileStream_error(out)) {
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fprintf(stderr, "genccode: file write error while generating from file %s\n", filename);
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exit(U_FILE_ACCESS_ERROR);
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}
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T_FileStream_close(out);
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T_FileStream_close(in);
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#endif
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}
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static void
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getOutFilename(const char *inFilename, const char *destdir, char *outFilename, char *entryName, const char *newSuffix) {
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const char *basename=findBasename(inFilename), *suffix=uprv_strrchr(basename, '.');
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/* copy path */
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if(destdir!=NULL && *destdir!=0) {
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do {
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*outFilename++=*destdir++;
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} while(*destdir!=0);
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if(*(outFilename-1)!=U_FILE_SEP_CHAR) {
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*outFilename++=U_FILE_SEP_CHAR;
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}
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inFilename=basename;
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} else {
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while(inFilename<basename) {
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*outFilename++=*inFilename++;
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}
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}
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if(suffix==NULL) {
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/* the filename does not have a suffix */
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uprv_strcpy(entryName, inFilename);
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uprv_strcpy(outFilename, inFilename);
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uprv_strcat(outFilename, newSuffix);
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} else {
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/* copy basename */
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while(inFilename<suffix) {
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*outFilename++=*entryName++=*inFilename++;
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}
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/* replace '.' by '_' */
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*outFilename++=*entryName++='_';
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++inFilename;
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/* copy suffix */
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while(*inFilename!=0) {
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*outFilename++=*entryName++=*inFilename++;
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}
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*entryName=0;
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/* add ".c" */
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uprv_strcpy(outFilename, newSuffix);
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}
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}
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static void
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write8(FileStream *out, uint8_t byte) {
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char s[4];
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int i=0;
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/* convert the byte value to a string */
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if(byte>=100) {
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s[i++]='0'+byte/100;
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byte%=100;
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}
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if(i>0 || byte>=10) {
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s[i++]='0'+byte/10;
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byte%=10;
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}
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s[i++]='0'+byte;
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s[i]=0;
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/* write the value, possibly with comma and newline */
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if(column==0xffff) {
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/* first byte */
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column=1;
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} else if(column<16) {
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T_FileStream_writeLine(out, ",");
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++column;
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} else {
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T_FileStream_writeLine(out, ",\n");
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column=1;
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}
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T_FileStream_writeLine(out, s);
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}
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