forked from KolibriOS/kolibrios
223 lines
6.3 KiB
C
223 lines
6.3 KiB
C
/*
|
|
Copyright (c) 1990-2007 Info-ZIP. All rights reserved.
|
|
|
|
See the accompanying file LICENSE, version 2003-May-08 or later
|
|
(the contents of which are also included in unzip.h) for terms of use.
|
|
If, for some reason, all these files are missing, the Info-ZIP license
|
|
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
|
|
*/
|
|
/*---------------------------------------------------------------------------
|
|
|
|
globals.c
|
|
|
|
Routines to allocate and initialize globals, with or without threads.
|
|
|
|
Contents: registerGlobalPointer()
|
|
deregisterGlobalPointer()
|
|
getGlobalPointer()
|
|
globalsCtor()
|
|
|
|
---------------------------------------------------------------------------*/
|
|
|
|
|
|
#define UNZIP_INTERNAL
|
|
#include "unzip.h"
|
|
|
|
#ifndef FUNZIP
|
|
/* initialization of sigs is completed at runtime so unzip(sfx) executable
|
|
* won't look like a zipfile
|
|
*/
|
|
char central_hdr_sig[4] = {0, 0, 0x01, 0x02};
|
|
char local_hdr_sig[4] = {0, 0, 0x03, 0x04};
|
|
char end_central_sig[4] = {0, 0, 0x05, 0x06};
|
|
char end_central64_sig[4] = {0, 0, 0x06, 0x06};
|
|
char end_centloc64_sig[4] = {0, 0, 0x06, 0x07};
|
|
/* extern char extd_local_sig[4] = {0, 0, 0x07, 0x08}; NOT USED YET */
|
|
|
|
ZCONST char *fnames[2] = {"*", NULL}; /* default filenames vector */
|
|
#endif
|
|
|
|
|
|
#ifndef REENTRANT
|
|
Uz_Globs G;
|
|
#else /* REENTRANT */
|
|
|
|
# ifndef USETHREADID
|
|
Uz_Globs *GG;
|
|
# else /* USETHREADID */
|
|
# define THREADID_ENTRIES 0x40
|
|
|
|
int lastScan;
|
|
Uz_Globs *threadPtrTable[THREADID_ENTRIES];
|
|
ulg threadIdTable [THREADID_ENTRIES] = {
|
|
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
|
|
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* Make sure there are */
|
|
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* THREADID_ENTRIES 0s */
|
|
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0
|
|
};
|
|
|
|
static ZCONST char Far TooManyThreads[] =
|
|
"error: more than %d simultaneous threads.\n\
|
|
Some threads are probably not calling DESTROYTHREAD()\n";
|
|
static ZCONST char Far EntryNotFound[] =
|
|
"error: couldn't find global pointer in table.\n\
|
|
Maybe somebody accidentally called DESTROYTHREAD() twice.\n";
|
|
static ZCONST char Far GlobalPointerMismatch[] =
|
|
"error: global pointer in table does not match pointer passed as\
|
|
parameter\n";
|
|
|
|
static void registerGlobalPointer OF((__GPRO));
|
|
|
|
|
|
|
|
static void registerGlobalPointer(__G)
|
|
__GDEF
|
|
{
|
|
int scan=0;
|
|
ulg tid = GetThreadId();
|
|
|
|
while (threadIdTable[scan] && scan < THREADID_ENTRIES)
|
|
scan++;
|
|
|
|
if (scan == THREADID_ENTRIES) {
|
|
ZCONST char *tooMany = LoadFarString(TooManyThreads);
|
|
Info(slide, 0x421, ((char *)slide, tooMany, THREADID_ENTRIES));
|
|
free(pG);
|
|
EXIT(PK_MEM); /* essentially memory error before we've started */
|
|
}
|
|
|
|
threadIdTable [scan] = tid;
|
|
threadPtrTable[scan] = pG;
|
|
lastScan = scan;
|
|
}
|
|
|
|
|
|
|
|
void deregisterGlobalPointer(__G)
|
|
__GDEF
|
|
{
|
|
int scan=0;
|
|
ulg tid = GetThreadId();
|
|
|
|
|
|
while (threadIdTable[scan] != tid && scan < THREADID_ENTRIES)
|
|
scan++;
|
|
|
|
/*---------------------------------------------------------------------------
|
|
There are two things we can do if we can't find the entry: ignore it or
|
|
scream. The most likely reason for it not to be here is the user calling
|
|
this routine twice. Since this could cause BIG problems if any globals
|
|
are accessed after the first call, we'd better scream.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (scan == THREADID_ENTRIES || threadPtrTable[scan] != pG) {
|
|
ZCONST char *noEntry;
|
|
if (scan == THREADID_ENTRIES)
|
|
noEntry = LoadFarString(EntryNotFound);
|
|
else
|
|
noEntry = LoadFarString(GlobalPointerMismatch);
|
|
Info(slide, 0x421, ((char *)slide, noEntry));
|
|
EXIT(PK_WARN); /* programming error, but after we're all done */
|
|
}
|
|
|
|
threadIdTable [scan] = 0;
|
|
lastScan = scan;
|
|
free(threadPtrTable[scan]);
|
|
}
|
|
|
|
|
|
|
|
Uz_Globs *getGlobalPointer()
|
|
{
|
|
int scan=0;
|
|
ulg tid = GetThreadId();
|
|
|
|
while (threadIdTable[scan] != tid && scan < THREADID_ENTRIES)
|
|
scan++;
|
|
|
|
/*---------------------------------------------------------------------------
|
|
There are two things we can do if we can't find the entry: ignore it or
|
|
scream. The most likely reason for it not to be here is the user calling
|
|
this routine twice. Since this could cause BIG problems if any globals
|
|
are accessed after the first call, we'd better scream.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (scan == THREADID_ENTRIES) {
|
|
ZCONST char *noEntry = LoadFarString(EntryNotFound);
|
|
fprintf(stderr, noEntry); /* can't use Info w/o a global pointer */
|
|
EXIT(PK_ERR); /* programming error while still working */
|
|
}
|
|
|
|
return threadPtrTable[scan];
|
|
}
|
|
|
|
# endif /* ?USETHREADID */
|
|
#endif /* ?REENTRANT */
|
|
|
|
|
|
|
|
Uz_Globs *globalsCtor()
|
|
{
|
|
#ifdef REENTRANT
|
|
Uz_Globs *pG = (Uz_Globs *)malloc(sizeof(Uz_Globs));
|
|
|
|
if (!pG)
|
|
return (Uz_Globs *)NULL;
|
|
#endif /* REENTRANT */
|
|
|
|
/* for REENTRANT version, G is defined as (*pG) */
|
|
|
|
memzero(&G, sizeof(Uz_Globs));
|
|
|
|
#ifndef FUNZIP
|
|
#ifdef CMS_MVS
|
|
uO.aflag=1;
|
|
uO.C_flag=1;
|
|
#endif
|
|
#ifdef TANDEM
|
|
uO.aflag=1; /* default to '-a' auto create Text Files as type 101 */
|
|
#endif
|
|
#ifdef VMS
|
|
# if (!defined(NO_TIMESTAMPS))
|
|
uO.D_flag=1; /* default to '-D', no restoration of dir timestamps */
|
|
# endif
|
|
#endif
|
|
|
|
uO.lflag=(-1);
|
|
G.wildzipfn = "";
|
|
G.pfnames = (char **)fnames;
|
|
G.pxnames = (char **)&fnames[1];
|
|
G.pInfo = G.info;
|
|
G.sol = TRUE; /* at start of line */
|
|
|
|
G.message = UzpMessagePrnt;
|
|
G.input = UzpInput; /* not used by anyone at the moment... */
|
|
#if defined(WINDLL) || defined(MACOS)
|
|
G.mpause = NULL; /* has scrollbars: no need for pausing */
|
|
#else
|
|
G.mpause = UzpMorePause;
|
|
#endif
|
|
G.decr_passwd = UzpPassword;
|
|
#endif /* !FUNZIP */
|
|
|
|
#if (!defined(DOS_FLX_H68_NLM_OS2_W32) && !defined(AMIGA) && !defined(RISCOS))
|
|
#if (!defined(MACOS) && !defined(ATARI) && !defined(VMS))
|
|
G.echofd = -1;
|
|
#endif /* !(MACOS || ATARI || VMS) */
|
|
#endif /* !(DOS_FLX_H68_NLM_OS2_W32 || AMIGA || RISCOS) */
|
|
|
|
#ifdef SYSTEM_SPECIFIC_CTOR
|
|
SYSTEM_SPECIFIC_CTOR(__G);
|
|
#endif
|
|
|
|
#ifdef REENTRANT
|
|
#ifdef USETHREADID
|
|
registerGlobalPointer(__G);
|
|
#else
|
|
GG = &G;
|
|
#endif /* ?USETHREADID */
|
|
#endif /* REENTRANT */
|
|
|
|
return &G;
|
|
}
|