644 lines
22 KiB
C++
644 lines
22 KiB
C++
/*
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*******************************************************************************
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*
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* Copyright (C) 2003-2005, 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: pkgitems.cpp
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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: 2005sep18
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* created by: Markus W. Scherer
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*
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* Companion file to package.cpp. Deals with details of ICU data item formats.
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* Used for item dependencies.
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* Contains adapted code from uresdata.c and ucnv_bld.c (swapper code from 2003).
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*/
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#include "unicode/utypes.h"
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#include "unicode/ures.h"
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#include "unicode/putil.h"
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#include "unicode/udata.h"
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#include "cstring.h"
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#include "ucmndata.h"
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#include "udataswp.h"
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#include "swapimpl.h"
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#include "toolutil.h"
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#include "package.h"
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#include "pkg_imp.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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/* item formats in common */
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#include "uresdata.h"
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#include "ucnv_bld.h"
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#include "ucnv_io.h"
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// general definitions ----------------------------------------------------- ***
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#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
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U_CDECL_BEGIN
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static void U_CALLCONV
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printError(void *context, const char *fmt, va_list args) {
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vfprintf((FILE *)context, fmt, args);
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}
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U_CDECL_END
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typedef void CheckDependency(void *context, const char *itemName, const char *targetName);
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static uint16_t
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readSwapUInt16(uint16_t x) {
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return (uint16_t)((x<<8)|(x>>8));
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}
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// check a dependency ------------------------------------------------------ ***
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/*
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* assemble the target item name from the source item name, an ID
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* and a suffix
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*/
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static void
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checkIDSuffix(const char *itemName, const char *id, int32_t idLength, const char *suffix,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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char target[200];
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const char *itemID;
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int32_t treeLength, suffixLength, targetLength;
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// get the item basename
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itemID=strrchr(itemName, '/');
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if(itemID!=NULL) {
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++itemID;
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} else {
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itemID=itemName;
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}
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// build the target string
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treeLength=(int32_t)(itemID-itemName);
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if(idLength<0) {
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idLength=(int32_t)strlen(id);
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}
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suffixLength=(int32_t)strlen(suffix);
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targetLength=treeLength+idLength+suffixLength;
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if(targetLength>=(int32_t)sizeof(target)) {
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fprintf(stderr, "icupkg/checkIDSuffix(%s) alias target item name length %ld too long\n",
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itemName, targetLength);
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*pErrorCode=U_BUFFER_OVERFLOW_ERROR;
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return;
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}
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memcpy(target, itemName, treeLength);
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memcpy(target+treeLength, id, idLength);
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memcpy(target+treeLength+idLength, suffix, suffixLength+1); // +1 includes the terminating NUL
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check(context, itemName, target);
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}
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/* assemble the target item name from the item's parent item name */
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static void
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checkParent(const char *itemName, CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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const char *itemID, *parent, *parentLimit, *suffix;
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int32_t parentLength;
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// get the item basename
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itemID=strrchr(itemName, '/');
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if(itemID!=NULL) {
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++itemID;
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} else {
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itemID=itemName;
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}
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// get the item suffix
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suffix=strrchr(itemID, '.');
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if(suffix==NULL) {
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// empty suffix, point to the end of the string
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suffix=strrchr(itemID, 0);
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}
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// get the position of the last '_'
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for(parentLimit=suffix; parentLimit>itemID && *--parentLimit!='_';) {}
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if(parentLimit!=itemID) {
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// get the parent item name by truncating the last part of this item's name */
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parent=itemID;
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parentLength=(int32_t)(parentLimit-itemID);
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} else {
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// no '_' in the item name: the parent is the root bundle
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parent="root";
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parentLength=4;
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if((suffix-itemID)==parentLength && 0==memcmp(itemID, parent, parentLength)) {
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// the item itself is "root", which does not depend on a parent
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return;
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}
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}
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checkIDSuffix(itemName, parent, parentLength, suffix, check, context, pErrorCode);
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}
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// get dependencies from resource bundles ---------------------------------- ***
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static const char *const gAliasKey="%%ALIAS";
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enum { gAliasKeyLength=7 };
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/*
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* Enumerate one resource item and its children and extract dependencies from
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* aliases.
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* Code adapted from ures_preflightResource() and ures_swapResource().
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*/
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static void
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ures_enumDependencies(const UDataSwapper *ds,
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const char *itemName,
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const Resource *inBundle, int32_t length,
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Resource res, const char *inKey, int32_t depth,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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const Resource *p;
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int32_t offset;
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if(res==0 || RES_GET_TYPE(res)==URES_INT) {
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/* empty string or integer, nothing to do */
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return;
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}
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/* all other types use an offset to point to their data */
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offset=(int32_t)RES_GET_OFFSET(res);
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if(0<=length && length<=offset) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) resource offset exceeds bundle length %d\n",
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itemName, res, length);
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*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
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return;
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}
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p=inBundle+offset;
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switch(RES_GET_TYPE(res)) {
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/* strings and aliases have physically the same value layout */
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case URES_STRING:
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// we ignore all strings except top-level strings with a %%ALIAS key
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if(depth!=1) {
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break;
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} else {
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char key[8];
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int32_t keyLength;
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keyLength=(int32_t)strlen(inKey);
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if(keyLength!=gAliasKeyLength) {
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break;
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}
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ds->swapInvChars(ds, inKey, gAliasKeyLength+1, key, pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) string key contains variant characters\n",
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itemName, res);
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return;
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}
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if(0!=strcmp(key, gAliasKey)) {
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break;
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}
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}
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// for the top-level %%ALIAS string fall through to URES_ALIAS
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case URES_ALIAS:
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{
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char localeID[32];
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const uint16_t *p16;
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int32_t i, stringLength;
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uint16_t u16, ored16;
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stringLength=udata_readInt32(ds, (int32_t)*p);
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/* top=offset+1+(string length +1)/2 rounded up */
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offset+=1+((stringLength+1)+1)/2;
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if(offset>length) {
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break; // the resource does not fit into the bundle, print error below
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}
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// extract the locale ID from alias strings like
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// locale_ID/key1/key2/key3
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// locale_ID
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if(U_IS_BIG_ENDIAN==ds->inIsBigEndian) {
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u16=0x2f; // slash in local endianness
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} else {
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u16=0x2f00; // slash in opposite endianness
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}
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p16=(const uint16_t *)(p+1); // Unicode string contents
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// search for the first slash
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for(i=0; i<stringLength && p16[i]!=u16; ++i) {}
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if(RES_GET_TYPE(res)==URES_ALIAS) {
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// ignore aliases with an initial slash:
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// /ICUDATA/... and /pkgname/... go to a different package
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// /LOCALE/... are for dynamic sideways fallbacks and don't go to a fixed bundle
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if(i==0) {
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break; // initial slash ('/')
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}
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// ignore the intra-bundle path starting from the first slash ('/')
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stringLength=i;
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} else /* URES_STRING */ {
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// the whole string should only consist of a locale ID
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if(i!=stringLength) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) %%ALIAS contains a '/'\n",
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itemName, res);
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*pErrorCode=U_UNSUPPORTED_ERROR;
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return;
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}
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}
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// convert the Unicode string to char * and
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// check that it has a bundle path but no package
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if(stringLength>=(int32_t)sizeof(localeID)) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) alias locale ID length %ld too long\n",
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itemName, res, stringLength);
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*pErrorCode=U_BUFFER_OVERFLOW_ERROR;
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return;
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}
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// convert the alias Unicode string to US-ASCII
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ored16=0;
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if(U_IS_BIG_ENDIAN==ds->inIsBigEndian) {
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for(i=0; i<stringLength; ++i) {
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u16=p16[i];
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ored16|=u16;
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localeID[i]=(char)u16;
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}
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} else {
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for(i=0; i<stringLength; ++i) {
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u16=p16[i];
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ored16|=u16;
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localeID[i]=(char)(u16>>8);
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}
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ored16=(uint16_t)((ored16<<8)|(ored16>>8));
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}
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localeID[stringLength]=0;
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if(ored16>0x7f) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) alias string contains non-ASCII characters\n",
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itemName, res);
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*pErrorCode=U_INVALID_CHAR_FOUND;
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return;
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}
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if(U_CHARSET_FAMILY==U_EBCDIC_FAMILY) {
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// swap to EBCDIC
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// our swapper is probably not the right one, but
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// the function uses it only for printing errors
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uprv_ebcdicFromAscii(ds, localeID, stringLength, localeID, pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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return;
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}
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}
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#if U_CHARSET_FAMILY!=U_ASCII_FAMILY && U_CHARSET_FAMILY!=U_EBCDIC_FAMILY
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# error Unknown U_CHARSET_FAMILY value!
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#endif
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checkIDSuffix(itemName, localeID, -1, ".res", check, context, pErrorCode);
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}
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break;
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case URES_TABLE:
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case URES_TABLE32:
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{
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const uint16_t *pKey16;
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const int32_t *pKey32;
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Resource item;
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int32_t i, count;
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if(RES_GET_TYPE(res)==URES_TABLE) {
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/* get table item count */
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pKey16=(const uint16_t *)p;
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count=ds->readUInt16(*pKey16++);
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pKey32=NULL;
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/* top=((1+ table item count)/2 rounded up)+(table item count) */
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offset+=((1+count)+1)/2;
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} else {
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/* get table item count */
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pKey32=(const int32_t *)p;
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count=udata_readInt32(ds, *pKey32++);
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pKey16=NULL;
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/* top=(1+ table item count)+(table item count) */
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offset+=1+count;
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}
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p=inBundle+offset; /* pointer to table resources */
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offset+=count;
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if(offset>length) {
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break; // the resource does not fit into the bundle, print error below
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}
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/* recurse */
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for(i=0; i<count; ++i) {
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item=ds->readUInt32(*p++);
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ures_enumDependencies(
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ds, itemName, inBundle, length, item,
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((const char *)inBundle)+
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(pKey16!=NULL ?
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ds->readUInt16(pKey16[i]) :
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udata_readInt32(ds, pKey32[i])),
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depth+1,
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check, context,
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pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s table res=%08x)[%d].recurse(%08x) failed\n",
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itemName, res, i, item);
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break;
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}
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}
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}
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break;
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case URES_ARRAY:
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{
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Resource item;
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int32_t i, count;
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/* top=offset+1+(array length) */
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count=udata_readInt32(ds, (int32_t)*p++);
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offset+=1+count;
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if(offset>length) {
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break; // the resource does not fit into the bundle, print error below
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}
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/* recurse */
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for(i=0; i<count; ++i) {
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item=ds->readUInt32(*p++);
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ures_enumDependencies(
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ds, itemName, inBundle, length,
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item, NULL, depth+1,
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check, context,
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pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s array res=%08x)[%d].recurse(%08x) failed\n",
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itemName, res, i, item);
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break;
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}
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}
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}
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break;
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default:
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break;
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}
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if(U_FAILURE(*pErrorCode)) {
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/* nothing to do */
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} else if(0<=length && length<offset) {
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udata_printError(ds, "icupkg/ures_enumDependencies(%s res=%08x) resource limit exceeds bundle length %d\n",
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itemName, res, length);
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*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
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}
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}
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/* code adapted from ures_swap() */
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static void
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ures_enumDependencies(const UDataSwapper *ds,
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const char *itemName, const UDataInfo *pInfo,
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const uint8_t *inBytes, int32_t length,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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const Resource *inBundle;
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Resource rootRes;
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/* the following integers count Resource item offsets (4 bytes each), not bytes */
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int32_t bundleLength;
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/* check format version */
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if(pInfo->formatVersion[0]!=1) {
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fprintf(stderr, "icupkg: .res format version %02x not supported\n",
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pInfo->formatVersion[0]);
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exit(U_UNSUPPORTED_ERROR);
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}
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/* a resource bundle must contain at least one resource item */
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bundleLength=length/4;
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/* formatVersion 1.1 must have a root item and at least 5 indexes */
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if( bundleLength<
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(pInfo->formatVersion[1]==0 ? 1 : 1+5)
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) {
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fprintf(stderr, "icupkg: too few bytes (%d after header) for a resource bundle\n",
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length);
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exit(U_INDEX_OUTOFBOUNDS_ERROR);
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}
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inBundle=(const Resource *)inBytes;
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rootRes=ds->readUInt32(*inBundle);
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ures_enumDependencies(
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ds, itemName, inBundle, bundleLength,
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rootRes, NULL, 0,
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check, context,
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pErrorCode);
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/*
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* if the bundle attributes are present and the nofallback flag is not set,
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* then add the parent bundle as a dependency
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*/
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if(pInfo->formatVersion[1]>=1) {
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int32_t indexes[URES_INDEX_TOP];
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const int32_t *inIndexes;
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inIndexes=(const int32_t *)inBundle+1;
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indexes[URES_INDEX_LENGTH]=udata_readInt32(ds, inIndexes[URES_INDEX_LENGTH]);
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if(indexes[URES_INDEX_LENGTH]>URES_INDEX_ATTRIBUTES) {
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indexes[URES_INDEX_ATTRIBUTES]=udata_readInt32(ds, inIndexes[URES_INDEX_ATTRIBUTES]);
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if(0==(indexes[URES_INDEX_ATTRIBUTES]&URES_ATT_NO_FALLBACK)) {
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/* this bundle participates in locale fallback */
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checkParent(itemName, check, context, pErrorCode);
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}
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}
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}
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}
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// get dependencies from conversion tables --------------------------------- ***
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/* code adapted from ucnv_swap() */
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static void
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ucnv_enumDependencies(const UDataSwapper *ds,
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const char *itemName, const UDataInfo *pInfo,
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const uint8_t *inBytes, int32_t length,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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uint32_t staticDataSize;
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const UConverterStaticData *inStaticData;
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const _MBCSHeader *inMBCSHeader;
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uint8_t outputType;
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/* check format version */
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if(!(
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pInfo->formatVersion[0]==6 &&
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pInfo->formatVersion[1]>=2
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)) {
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fprintf(stderr, "icupkg/ucnv_enumDependencies(): .cnv format version %02x.%02x not supported\n",
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pInfo->formatVersion[0], pInfo->formatVersion[1]);
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exit(U_UNSUPPORTED_ERROR);
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}
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/* read the initial UConverterStaticData structure after the UDataInfo header */
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inStaticData=(const UConverterStaticData *)inBytes;
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if( length<sizeof(UConverterStaticData) ||
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(uint32_t)length<(staticDataSize=ds->readUInt32(inStaticData->structSize))
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) {
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udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after header) for an ICU .cnv conversion table\n",
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length);
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*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
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return;
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}
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inBytes+=staticDataSize;
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length-=(int32_t)staticDataSize;
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/* check for supported conversionType values */
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if(inStaticData->conversionType==UCNV_MBCS) {
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/* MBCS data */
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uint32_t mbcsHeaderFlags;
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int32_t extOffset;
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inMBCSHeader=(const _MBCSHeader *)inBytes;
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if(length<sizeof(_MBCSHeader)) {
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udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table\n",
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|
length);
|
|
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
|
|
return;
|
|
}
|
|
if(!(inMBCSHeader->version[0]==4 && inMBCSHeader->version[1]>=1)) {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(): unsupported _MBCSHeader.version %d.%d\n",
|
|
inMBCSHeader->version[0], inMBCSHeader->version[1]);
|
|
*pErrorCode=U_UNSUPPORTED_ERROR;
|
|
return;
|
|
}
|
|
|
|
mbcsHeaderFlags=ds->readUInt32(inMBCSHeader->flags);
|
|
extOffset=(int32_t)(mbcsHeaderFlags>>8);
|
|
outputType=(uint8_t)mbcsHeaderFlags;
|
|
|
|
if(outputType==MBCS_OUTPUT_EXT_ONLY) {
|
|
/*
|
|
* extension-only file,
|
|
* contains a base name instead of normal base table data
|
|
*/
|
|
char baseName[32];
|
|
int32_t baseNameLength;
|
|
|
|
/* there is extension data after the base data, see ucnv_ext.h */
|
|
if(length<(extOffset+UCNV_EXT_INDEXES_MIN_LENGTH*4)) {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table with extension data\n",
|
|
length);
|
|
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
|
|
return;
|
|
}
|
|
|
|
/* swap the base name, between the header and the extension data */
|
|
baseNameLength=(int32_t)strlen((const char *)(inMBCSHeader+1));
|
|
if(baseNameLength>=(int32_t)sizeof(baseName)) {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(%s): base name length %ld too long\n",
|
|
itemName, baseNameLength);
|
|
*pErrorCode=U_UNSUPPORTED_ERROR;
|
|
return;
|
|
}
|
|
ds->swapInvChars(ds, inMBCSHeader+1, baseNameLength+1, baseName, pErrorCode);
|
|
|
|
checkIDSuffix(itemName, baseName, -1, ".cnv", check, context, pErrorCode);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ICU data formats -------------------------------------------------------- ***
|
|
|
|
static const struct {
|
|
uint8_t dataFormat[4];
|
|
} dataFormats[]={
|
|
{ { 0x52, 0x65, 0x73, 0x42 } }, /* dataFormat="ResB" */
|
|
{ { 0x63, 0x6e, 0x76, 0x74 } }, /* dataFormat="cnvt" */
|
|
{ { 0x43, 0x76, 0x41, 0x6c } } /* dataFormat="CvAl" */
|
|
};
|
|
|
|
enum {
|
|
FMT_RES,
|
|
FMT_CNV,
|
|
FMT_ALIAS,
|
|
FMT_COUNT
|
|
};
|
|
|
|
static int32_t
|
|
getDataFormat(const uint8_t dataFormat[4]) {
|
|
int32_t i;
|
|
|
|
for(i=0; i<FMT_COUNT; ++i) {
|
|
if(0==memcmp(dataFormats[i].dataFormat, dataFormat, 4)) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
// enumerate dependencies of a package item -------------------------------- ***
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
void
|
|
Package::enumDependencies(Item *pItem) {
|
|
const UDataInfo *pInfo;
|
|
const uint8_t *inBytes;
|
|
int32_t format, length, infoLength, itemHeaderLength;
|
|
UErrorCode errorCode;
|
|
|
|
errorCode=U_ZERO_ERROR;
|
|
pInfo=getDataInfo(pItem->data,pItem->length, infoLength, itemHeaderLength, &errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
return; // should not occur because readFile() checks headers
|
|
}
|
|
|
|
// find the data format and call the corresponding function, if any
|
|
format=getDataFormat(pInfo->dataFormat);
|
|
if(format>=0) {
|
|
UDataSwapper *ds;
|
|
|
|
// TODO: share/cache swappers
|
|
ds=udata_openSwapper((UBool)pInfo->isBigEndian, pInfo->charsetFamily, U_IS_BIG_ENDIAN, U_CHARSET_FAMILY, &errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
|
|
pItem->name, u_errorName(errorCode));
|
|
exit(errorCode);
|
|
}
|
|
|
|
ds->printError=printError;
|
|
ds->printErrorContext=stderr;
|
|
|
|
inBytes=pItem->data+itemHeaderLength;
|
|
length=pItem->length-itemHeaderLength;
|
|
|
|
switch(format) {
|
|
case FMT_RES:
|
|
ures_enumDependencies(ds, pItem->name, pInfo, inBytes, length, checkDependency, this, &errorCode);
|
|
break;
|
|
case FMT_CNV:
|
|
ucnv_enumDependencies(ds, pItem->name, pInfo, inBytes, length, checkDependency, this, &errorCode);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
udata_closeSwapper(ds);
|
|
|
|
if(U_FAILURE(errorCode)) {
|
|
exit(errorCode);
|
|
}
|
|
}
|
|
}
|
|
U_NAMESPACE_END
|