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townengine/third-party/physfs/src/physfs_platform_os2.c
veclavtalica 206a5b7cad awesome!!!
2024-07-08 03:44:20 +03:00

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/*
* OS/2 support routines for PhysicsFS.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#define __PHYSICSFS_INTERNAL__
#include "physfs_platforms.h"
#ifdef PHYSFS_PLATFORM_OS2
#define INCL_DOSMODULEMGR
#define INCL_DOSSEMAPHORES
#define INCL_DOSDATETIME
#define INCL_DOSFILEMGR
#define INCL_DOSMODULEMGR
#define INCL_DOSERRORS
#define INCL_DOSPROCESS
#define INCL_DOSDEVICES
#define INCL_DOSDEVIOCTL
#define INCL_DOSMISC
#include <os2.h>
#include <uconv.h>
#include <errno.h>
#include <time.h>
#include <ctype.h>
#include "physfs_internal.h"
static HMODULE uconvdll = 0;
static UconvObject uconv = 0;
static int (_System *pUniCreateUconvObject)(UniChar *, UconvObject *) = NULL;
static int (_System *pUniFreeUconvObject)(UconvObject *) = NULL;
static int (_System *pUniUconvToUcs)(UconvObject,void **,size_t *, UniChar**, size_t *, size_t *) = NULL;
static int (_System *pUniUconvFromUcs)(UconvObject,UniChar **,size_t *,void **,size_t *,size_t *) = NULL;
static PHYSFS_ErrorCode errcodeFromAPIRET(const APIRET rc)
{
switch (rc)
{
case NO_ERROR: return PHYSFS_ERR_OK; /* not an error. */
case ERROR_INTERRUPT: return PHYSFS_ERR_OK; /* not an error. */
case ERROR_TIMEOUT: return PHYSFS_ERR_OK; /* not an error. */
case ERROR_NOT_ENOUGH_MEMORY: return PHYSFS_ERR_OUT_OF_MEMORY;
case ERROR_FILE_NOT_FOUND: return PHYSFS_ERR_NOT_FOUND;
case ERROR_PATH_NOT_FOUND: return PHYSFS_ERR_NOT_FOUND;
case ERROR_ACCESS_DENIED: return PHYSFS_ERR_PERMISSION;
case ERROR_NOT_DOS_DISK: return PHYSFS_ERR_NOT_FOUND;
case ERROR_SHARING_VIOLATION: return PHYSFS_ERR_PERMISSION;
case ERROR_CANNOT_MAKE: return PHYSFS_ERR_IO; /* maybe this is wrong? */
case ERROR_DEVICE_IN_USE: return PHYSFS_ERR_BUSY;
case ERROR_OPEN_FAILED: return PHYSFS_ERR_IO; /* maybe this is wrong? */
case ERROR_DISK_FULL: return PHYSFS_ERR_NO_SPACE;
case ERROR_PIPE_BUSY: return PHYSFS_ERR_BUSY;
case ERROR_SHARING_BUFFER_EXCEEDED: return PHYSFS_ERR_IO;
case ERROR_FILENAME_EXCED_RANGE: return PHYSFS_ERR_BAD_FILENAME;
case ERROR_META_EXPANSION_TOO_LONG: return PHYSFS_ERR_BAD_FILENAME;
case ERROR_TOO_MANY_HANDLES: return PHYSFS_ERR_IO;
case ERROR_TOO_MANY_OPEN_FILES: return PHYSFS_ERR_IO;
case ERROR_NO_MORE_SEARCH_HANDLES: return PHYSFS_ERR_IO;
case ERROR_SEEK_ON_DEVICE: return PHYSFS_ERR_IO;
case ERROR_NEGATIVE_SEEK: return PHYSFS_ERR_INVALID_ARGUMENT;
case ERROR_WRITE_PROTECT: return PHYSFS_ERR_PERMISSION;
case ERROR_WRITE_FAULT: return PHYSFS_ERR_IO;
case ERROR_UNCERTAIN_MEDIA: return PHYSFS_ERR_IO;
case ERROR_PROTECTION_VIOLATION: return PHYSFS_ERR_IO;
case ERROR_BROKEN_PIPE: return PHYSFS_ERR_IO;
/* !!! FIXME: some of these might be PHYSFS_ERR_BAD_FILENAME, etc */
case ERROR_LOCK_VIOLATION:
case ERROR_GEN_FAILURE:
case ERROR_INVALID_PARAMETER:
case ERROR_INVALID_NAME:
case ERROR_INVALID_DRIVE:
case ERROR_INVALID_HANDLE:
case ERROR_INVALID_FUNCTION:
case ERROR_INVALID_LEVEL:
case ERROR_INVALID_CATEGORY:
case ERROR_DUPLICATE_NAME:
case ERROR_BUFFER_OVERFLOW:
case ERROR_BAD_LENGTH:
case ERROR_BAD_DRIVER_LEVEL:
case ERROR_DIRECT_ACCESS_HANDLE:
case ERROR_NOT_OWNER:
return PHYSFS_ERR_OS_ERROR;
default: break;
} /* switch */
return PHYSFS_ERR_OTHER_ERROR;
} /* errcodeFromAPIRET */
static char *cvtUtf8ToCodepage(const char *utf8str)
{
const size_t len = strlen(utf8str) + 1;
const size_t uc2buflen = len * sizeof (UniChar);
UniChar *uc2ptr = (UniChar *) __PHYSFS_smallAlloc(uc2buflen);
UniChar *uc2str = uc2ptr;
char *cpptr = NULL;
char *cpstr = NULL;
size_t subs = 0;
size_t unilen;
BAIL_IF(!uc2str, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
PHYSFS_utf8ToUcs2(utf8str, (PHYSFS_uint16 *) uc2str, uc2buflen);
for (unilen = 0; uc2str[unilen]; unilen++) { /* spin */ }
unilen++; /* null terminator. */
if (!uconvdll)
{
/* There's really not much we can do on older OS/2s except pray this
is latin1-compatible. */
size_t i;
cpptr = (char *) allocator.Malloc(unilen);
cpstr = cpptr;
GOTO_IF(!cpptr, PHYSFS_ERR_OUT_OF_MEMORY, failed);
for (i = 0; i < unilen; i++)
{
const UniChar ch = uc2str[i];
GOTO_IF(ch > 0xFF, PHYSFS_ERR_BAD_FILENAME, failed);
cpptr[i] = (char) ((unsigned char) ch);
} /* for */
__PHYSFS_smallFree(uc2ptr);
return cpstr;
} /* if */
else
{
int rc;
size_t cplen = unilen * 4; /* overallocate, just in case. */
cpptr = (char *) allocator.Malloc(cplen);
GOTO_IF(!cpptr, PHYSFS_ERR_OUT_OF_MEMORY, failed);
cpstr = cpptr;
rc = pUniUconvFromUcs(uconv, &uc2str, &unilen, (void **) &cpstr, &cplen, &subs);
GOTO_IF(rc != ULS_SUCCESS, PHYSFS_ERR_BAD_FILENAME, failed);
GOTO_IF(subs > 0, PHYSFS_ERR_BAD_FILENAME, failed);
assert(unilen == 0);
__PHYSFS_smallFree(uc2ptr);
return cpptr;
} /* else */
failed:
__PHYSFS_smallFree(uc2ptr);
allocator.Free(cpptr);
return NULL;
} /* cvtUtf8ToCodepage */
static char *cvtCodepageToUtf8(const char *cpstr)
{
const size_t len = strlen(cpstr) + 1;
char *retvalbuf = (char *) allocator.Malloc(len * 4);
char *retval = NULL;
BAIL_IF(!retvalbuf, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
if (!uconvdll)
{
/* There's really not much we can do on older OS/2s except pray this
is latin1-compatible. */
retval = retvalbuf;
PHYSFS_utf8FromLatin1(cpstr, retval, len * 4);
} /* if */
else
{
int rc;
size_t cplen = len;
size_t unilen = len;
size_t subs = 0;
UniChar *uc2ptr = __PHYSFS_smallAlloc(len * sizeof (UniChar));
UniChar *uc2str = uc2ptr;
BAIL_IF(!uc2ptr, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
rc = pUniUconvToUcs(uconv, (void **) &cpstr, &cplen, &uc2str, &unilen, &subs);
GOTO_IF(rc != ULS_SUCCESS, PHYSFS_ERR_BAD_FILENAME, done);
GOTO_IF(subs > 0, PHYSFS_ERR_BAD_FILENAME, done);
assert(cplen == 0);
retval = retvalbuf;
PHYSFS_utf8FromUcs2((const PHYSFS_uint16 *) uc2ptr, retval, len * 4);
done:
__PHYSFS_smallFree(uc2ptr);
} /* else */
return retval;
} /* cvtCodepageToUtf8 */
/* (be gentle, this function isn't very robust.) */
static char *cvtPathToCorrectCase(char *buf)
{
char *retval = buf;
char *fname = buf + 3; /* point to first element. */
char *ptr = strchr(fname, '\\'); /* find end of first element. */
buf[0] = toupper(buf[0]); /* capitalize drive letter. */
/*
* Go through each path element, and enumerate its parent dir until
* a case-insensitive match is found. If one is (and it SHOULD be)
* then overwrite the original element with the correct case.
* If there's an error, or the path has vanished for some reason, it
* won't hurt to have the original case, so we just keep going.
*/
while ((fname != NULL) && (*fname != '\0'))
{
char spec[CCHMAXPATH];
FILEFINDBUF3 fb;
HDIR hdir = HDIR_CREATE;
ULONG count = 1;
APIRET rc;
*(fname - 1) = '\0'; /* isolate parent dir string. */
strcpy(spec, buf); /* copy isolated parent dir... */
strcat(spec, "\\*.*"); /* ...and add wildcard search spec. */
if (ptr != NULL) /* isolate element to find (fname is the start). */
*ptr = '\0';
rc = DosFindFirst(spec, &hdir, FILE_DIRECTORY,
&fb, sizeof (fb), &count, FIL_STANDARD);
if (rc == NO_ERROR)
{
while (count == 1) /* while still entries to enumerate... */
{
int cmp;
char *utf8 = cvtCodepageToUtf8(fb.achName);
if (!utf8) /* ugh, maybe we'll get lucky with the C runtime. */
cmp = stricmp(fb.achName, fname);
else
{
cmp = PHYSFS_utf8stricmp(utf8, fname);
allocator.Free(utf8);
} /* else */
if (cmp == 0)
{
strcpy(fname, fb.achName);
break; /* there it is. Overwrite and stop searching. */
} /* if */
DosFindNext(hdir, &fb, sizeof (fb), &count);
} /* while */
DosFindClose(hdir);
} /* if */
*(fname - 1) = '\\'; /* unisolate parent dir. */
fname = ptr; /* point to next element. */
if (ptr != NULL)
{
*ptr = '\\'; /* unisolate element. */
ptr = strchr(++fname, '\\'); /* find next element. */
} /* if */
} /* while */
return retval;
} /* cvtPathToCorrectCase */
static void prepUnicodeSupport(void)
{
/* really old OS/2 might not have Unicode support _at all_, so load
the system library and do without if it doesn't exist. */
int ok = 0;
char buf[CCHMAXPATH];
UniChar defstr[] = { 0 };
if (DosLoadModule(buf, sizeof (buf) - 1, "uconv", &uconvdll) == NO_ERROR)
{
#define LOAD(x) (DosQueryProcAddr(uconvdll,0,#x,(PFN*)&p##x)==NO_ERROR)
ok = LOAD(UniCreateUconvObject) &&
LOAD(UniFreeUconvObject) &&
LOAD(UniUconvToUcs) &&
LOAD(UniUconvFromUcs);
#undef LOAD
} /* else */
if (!ok || (pUniCreateUconvObject(defstr, &uconv) != ULS_SUCCESS))
{
/* oh well, live without it. */
if (uconvdll)
{
if (uconv)
pUniFreeUconvObject(uconv);
DosFreeModule(uconvdll);
uconvdll = 0;
} /* if */
} /* if */
} /* prepUnicodeSupport */
int __PHYSFS_platformInit(void)
{
prepUnicodeSupport();
return 1; /* ready to go! */
} /* __PHYSFS_platformInit */
void __PHYSFS_platformDeinit(void)
{
if (uconvdll)
{
pUniFreeUconvObject(uconv);
uconv = 0;
DosFreeModule(uconvdll);
uconvdll = 0;
} /* if */
} /* __PHYSFS_platformDeinit */
static int discIsInserted(ULONG drive)
{
int rc;
char buf[20];
DosError(FERR_DISABLEHARDERR | FERR_DISABLEEXCEPTION);
rc = DosQueryFSInfo(drive + 1, FSIL_VOLSER, buf, sizeof (buf));
DosError(FERR_ENABLEHARDERR | FERR_ENABLEEXCEPTION);
return (rc == NO_ERROR);
} /* is_cdrom_inserted */
/* looks like "CD01" in ASCII (littleendian)...used for an ioctl. */
#define CD01 0x31304443
static int isCdRomDrive(ULONG drive)
{
PHYSFS_uint32 param, data;
ULONG ul1, ul2;
APIRET rc;
HFILE hfile = NULLHANDLE;
char drivename[3] = { 0, ':', '\0' };
drivename[0] = 'A' + drive;
rc = DosOpen(drivename, &hfile, &ul1, 0, 0,
OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_FAIL_IF_NEW,
OPEN_FLAGS_DASD | OPEN_FLAGS_FAIL_ON_ERROR |
OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYNONE, NULL);
if (rc != NO_ERROR)
return 0;
data = 0;
param = PHYSFS_swapULE32(CD01);
ul1 = ul2 = sizeof (PHYSFS_uint32);
rc = DosDevIOCtl(hfile, IOCTL_CDROMDISK, CDROMDISK_GETDRIVER,
&param, sizeof (param), &ul1, &data, sizeof (data), &ul2);
DosClose(hfile);
return ((rc == NO_ERROR) && (PHYSFS_swapULE32(data) == CD01));
} /* isCdRomDrive */
void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
{
ULONG dummy = 0;
ULONG drivemap = 0;
ULONG i, bit;
const APIRET rc = DosQueryCurrentDisk(&dummy, &drivemap);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc),);
for (i = 0, bit = 1; i < 26; i++, bit <<= 1)
{
if (drivemap & bit) /* this logical drive exists. */
{
if ((isCdRomDrive(i)) && (discIsInserted(i)))
{
char drive[4] = "x:\\";
drive[0] = ('A' + i);
cb(data, drive);
} /* if */
} /* if */
} /* for */
} /* __PHYSFS_platformDetectAvailableCDs */
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
char *retval = NULL;
char buf[CCHMAXPATH];
APIRET rc;
PTIB ptib;
PPIB ppib;
PHYSFS_sint32 len;
rc = DosGetInfoBlocks(&ptib, &ppib);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
rc = DosQueryModuleName(ppib->pib_hmte, sizeof (buf), (PCHAR) buf);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
retval = cvtCodepageToUtf8(buf);
BAIL_IF_ERRPASS(!retval, NULL);
/* chop off filename, leave path. */
for (len = strlen(retval) - 1; len >= 0; len--)
{
if (retval[len] == '\\')
{
retval[len + 1] = '\0';
break;
} /* if */
} /* for */
assert(len > 0); /* should have been a "x:\\" on the front on string. */
/* The string is capitalized! Figure out the REAL case... */
return cvtPathToCorrectCase(retval);
} /* __PHYSFS_platformCalcBaseDir */
char *__PHYSFS_platformCalcUserDir(void)
{
return __PHYSFS_platformCalcBaseDir(NULL); /* !!! FIXME: ? */
} /* __PHYSFS_platformCalcUserDir */
char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
{
return __PHYSFS_platformCalcBaseDir(NULL); /* !!! FIXME: ? */
} /* __PHYSFS_platformCalcPrefDir */
PHYSFS_EnumerateCallbackResult __PHYSFS_platformEnumerate(const char *dirname,
PHYSFS_EnumerateCallback callback,
const char *origdir, void *callbackdata)
{
PHYSFS_EnumerateCallbackResult retval = PHYSFS_ENUM_OK;
size_t utf8len = strlen(dirname);
char *utf8 = (char *) __PHYSFS_smallAlloc(utf8len + 5);
char *cpspec = NULL;
FILEFINDBUF3 fb;
HDIR hdir = HDIR_CREATE;
ULONG count = 1;
APIRET rc;
BAIL_IF(!utf8, PHYSFS_ERR_OUT_OF_MEMORY, PHYSFS_ENUM_ERROR);
strcpy(utf8, dirname);
if (utf8[utf8len - 1] != '\\')
strcpy(utf8 + utf8len, "\\*.*");
else
strcpy(utf8 + utf8len, "*.*");
cpspec = cvtUtf8ToCodepage(utf8);
__PHYSFS_smallFree(utf8);
BAIL_IF_ERRPASS(!cpspec, PHYSFS_ENUM_ERROR);
rc = DosFindFirst(cpspec, &hdir,
FILE_DIRECTORY | FILE_ARCHIVED |
FILE_READONLY | FILE_HIDDEN | FILE_SYSTEM,
&fb, sizeof (fb), &count, FIL_STANDARD);
allocator.Free(cpspec);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), PHYSFS_ENUM_ERROR);
while (count == 1)
{
if ((strcmp(fb.achName, ".") != 0) && (strcmp(fb.achName, "..") != 0))
{
utf8 = cvtCodepageToUtf8(fb.achName);
if (!utf8)
retval = PHYSFS_ENUM_ERROR;
else
{
retval = callback(callbackdata, origdir, utf8);
allocator.Free(utf8);
if (retval == PHYSFS_ENUM_ERROR)
PHYSFS_setErrorCode(PHYSFS_ERR_APP_CALLBACK);
} /* else */
} /* if */
if (retval != PHYSFS_ENUM_OK)
break;
DosFindNext(hdir, &fb, sizeof (fb), &count);
} /* while */
DosFindClose(hdir);
return retval;
} /* __PHYSFS_platformEnumerate */
char *__PHYSFS_platformCurrentDir(void)
{
char *retval;
char *cpstr;
char *utf8;
ULONG currentDisk;
ULONG dummy;
ULONG pathSize = 0;
APIRET rc;
BYTE byte;
rc = DosQueryCurrentDisk(&currentDisk, &dummy);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), NULL);
/* The first call just tells us how much space we need for the string. */
rc = DosQueryCurrentDir(currentDisk, &byte, &pathSize);
pathSize++; /* Add space for null terminator. */
cpstr = (char *) __PHYSFS_smallAlloc(pathSize);
BAIL_IF(cpstr == NULL, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
/* Actually get the string this time. */
rc = DosQueryCurrentDir(currentDisk, (PBYTE) cpstr, &pathSize);
if (rc != NO_ERROR)
{
__PHYSFS_smallFree(cpstr);
BAIL(errcodeFromAPIRET(rc), NULL);
} /* if */
utf8 = cvtCodepageToUtf8(cpstr);
__PHYSFS_smallFree(cpstr);
BAIL_IF_ERRPASS(utf8 == NULL, NULL);
/* +4 for "x:\\" drive selector and null terminator. */
retval = (char *) allocator.Malloc(strlen(utf8) + 4);
if (retval == NULL)
{
allocator.Free(utf8);
BAIL(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
} /* if */
retval[0] = ('A' + (currentDisk - 1));
retval[1] = ':';
retval[2] = '\\';
strcpy(retval + 3, utf8);
allocator.Free(utf8);
return retval;
} /* __PHYSFS_platformCurrentDir */
int __PHYSFS_platformMkDir(const char *filename)
{
APIRET rc;
char *cpstr = cvtUtf8ToCodepage(filename);
BAIL_IF_ERRPASS(!cpstr, 0);
rc = DosCreateDir(cpstr, NULL);
allocator.Free(cpstr);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
return 1;
} /* __PHYSFS_platformMkDir */
static HFILE openFile(const char *filename, const ULONG flags, const ULONG mode)
{
char *cpfname = cvtUtf8ToCodepage(filename);
ULONG action = 0;
HFILE hfile = NULLHANDLE;
APIRET rc;
BAIL_IF_ERRPASS(!cpfname, 0);
rc = DosOpen(cpfname, &hfile, &action, 0, FILE_NORMAL, flags, mode, NULL);
allocator.Free(cpfname);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
return hfile;
} /* openFile */
void *__PHYSFS_platformOpenRead(const char *filename)
{
/*
* File must be opened SHARE_DENYWRITE and ACCESS_READONLY, otherwise
* DosQueryFileInfo() will fail if we try to get a file length, etc.
*/
return (void *) openFile(filename,
OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_FAIL_IF_NEW,
OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_LOCALITY |
OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYWRITE |
OPEN_ACCESS_READONLY);
} /* __PHYSFS_platformOpenRead */
void *__PHYSFS_platformOpenWrite(const char *filename)
{
return (void *) openFile(filename,
OPEN_ACTION_REPLACE_IF_EXISTS |
OPEN_ACTION_CREATE_IF_NEW,
OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_LOCALITY |
OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYWRITE);
} /* __PHYSFS_platformOpenWrite */
void *__PHYSFS_platformOpenAppend(const char *filename)
{
APIRET rc;
ULONG dummy = 0;
HFILE hfile;
/*
* File must be opened SHARE_DENYWRITE and ACCESS_READWRITE, otherwise
* DosQueryFileInfo() will fail if we try to get a file length, etc.
*/
hfile = openFile(filename,
OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_CREATE_IF_NEW,
OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_LOCALITY |
OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYWRITE |
OPEN_ACCESS_READWRITE);
BAIL_IF_ERRPASS(!hfile, NULL);
rc = DosSetFilePtr(hfile, 0, FILE_END, &dummy);
if (rc != NO_ERROR)
{
DosClose(hfile);
BAIL(errcodeFromAPIRET(rc), NULL);
} /* if */
return ((void *) hfile);
} /* __PHYSFS_platformOpenAppend */
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buf, PHYSFS_uint64 len)
{
ULONG br = 0;
APIRET rc;
BAIL_IF(!__PHYSFS_ui64FitsAddressSpace(len),PHYSFS_ERR_INVALID_ARGUMENT,-1);
rc = DosRead((HFILE) opaque, buf, (ULONG) len, &br);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), (br > 0) ? ((PHYSFS_sint64) br) : -1);
return (PHYSFS_sint64) br;
} /* __PHYSFS_platformRead */
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buf,
PHYSFS_uint64 len)
{
ULONG bw = 0;
APIRET rc;
BAIL_IF(!__PHYSFS_ui64FitsAddressSpace(len),PHYSFS_ERR_INVALID_ARGUMENT,-1);
rc = DosWrite((HFILE) opaque, (void *) buf, (ULONG) len, &bw);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), (bw > 0) ? ((PHYSFS_sint64) bw) : -1);
return (PHYSFS_sint64) bw;
} /* __PHYSFS_platformWrite */
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
{
ULONG dummy;
HFILE hfile = (HFILE) opaque;
LONG dist = (LONG) pos;
APIRET rc;
/* hooray for 32-bit filesystem limits! :) */
BAIL_IF((PHYSFS_uint64) dist != pos, PHYSFS_ERR_INVALID_ARGUMENT, 0);
rc = DosSetFilePtr(hfile, dist, FILE_BEGIN, &dummy);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
return 1;
} /* __PHYSFS_platformSeek */
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
{
ULONG pos;
HFILE hfile = (HFILE) opaque;
const APIRET rc = DosSetFilePtr(hfile, 0, FILE_CURRENT, &pos);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), -1);
return ((PHYSFS_sint64) pos);
} /* __PHYSFS_platformTell */
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
{
FILESTATUS3 fs;
HFILE hfile = (HFILE) opaque;
const APIRET rc = DosQueryFileInfo(hfile, FIL_STANDARD, &fs, sizeof (fs));
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), -1);
return ((PHYSFS_sint64) fs.cbFile);
} /* __PHYSFS_platformFileLength */
int __PHYSFS_platformFlush(void *opaque)
{
const APIRET rc = DosResetBuffer((HFILE) opaque);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
return 1;
} /* __PHYSFS_platformFlush */
void __PHYSFS_platformClose(void *opaque)
{
DosClose((HFILE) opaque); /* ignore errors. You should have flushed! */
} /* __PHYSFS_platformClose */
int __PHYSFS_platformDelete(const char *path)
{
char *cppath = cvtUtf8ToCodepage(path);
FILESTATUS3 fs;
APIRET rc;
int retval = 0;
BAIL_IF_ERRPASS(!cppath, 0);
rc = DosQueryPathInfo(cppath, FIL_STANDARD, &fs, sizeof (fs));
GOTO_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), done);
rc = (fs.attrFile & FILE_DIRECTORY) ? DosDeleteDir(path) : DosDelete(path);
GOTO_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), done);
retval = 1; /* success */
done:
allocator.Free(cppath);
return retval;
} /* __PHYSFS_platformDelete */
/* Convert to a format PhysicsFS can grok... */
PHYSFS_sint64 os2TimeToUnixTime(const FDATE *date, const FTIME *time)
{
struct tm tm;
tm.tm_sec = ((PHYSFS_uint32) time->twosecs) * 2;
tm.tm_min = time->minutes;
tm.tm_hour = time->hours;
tm.tm_mday = date->day;
tm.tm_mon = date->month;
tm.tm_year = ((PHYSFS_uint32) date->year) + 80;
tm.tm_wday = -1 /*st_localtz.wDayOfWeek*/;
tm.tm_yday = -1;
tm.tm_isdst = -1;
return (PHYSFS_sint64) mktime(&tm);
} /* os2TimeToUnixTime */
int __PHYSFS_platformStat(const char *filename, PHYSFS_Stat *stat, const int follow)
{
char *cpfname = cvtUtf8ToCodepage(filename);
FILESTATUS3 fs;
int retval = 0;
APIRET rc;
BAIL_IF_ERRPASS(!cpfname, 0);
rc = DosQueryPathInfo(cpfname, FIL_STANDARD, &fs, sizeof (fs));
GOTO_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), done);
if (fs.attrFile & FILE_DIRECTORY)
{
stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
stat->filesize = 0;
} /* if */
else
{
stat->filetype = PHYSFS_FILETYPE_REGULAR;
stat->filesize = fs.cbFile;
} /* else */
stat->modtime = os2TimeToUnixTime(&fs.fdateLastWrite, &fs.ftimeLastWrite);
if (stat->modtime < 0)
stat->modtime = 0;
stat->accesstime = os2TimeToUnixTime(&fs.fdateLastAccess, &fs.ftimeLastAccess);
if (stat->accesstime < 0)
stat->accesstime = 0;
stat->createtime = os2TimeToUnixTime(&fs.fdateCreation, &fs.ftimeCreation);
if (stat->createtime < 0)
stat->createtime = 0;
stat->readonly = ((fs.attrFile & FILE_READONLY) == FILE_READONLY);
return 1; /* success */
done:
allocator.Free(cpfname);
return retval;
} /* __PHYSFS_platformStat */
void *__PHYSFS_platformGetThreadID(void)
{
PTIB ptib;
PPIB ppib;
/*
* Allegedly, this API never fails, but we'll punt and return a
* default value (zero might as well do) if it does.
*/
const APIRET rc = DosGetInfoBlocks(&ptib, &ppib);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
return ((void *) ptib->tib_ordinal);
} /* __PHYSFS_platformGetThreadID */
void *__PHYSFS_platformCreateMutex(void)
{
HMTX hmtx = NULLHANDLE;
const APIRET rc = DosCreateMutexSem(NULL, &hmtx, 0, 0);
BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), NULL);
return ((void *) hmtx);
} /* __PHYSFS_platformCreateMutex */
void __PHYSFS_platformDestroyMutex(void *mutex)
{
DosCloseMutexSem((HMTX) mutex);
} /* __PHYSFS_platformDestroyMutex */
int __PHYSFS_platformGrabMutex(void *mutex)
{
/* Do _NOT_ set the physfs error message in here! */
return (DosRequestMutexSem((HMTX) mutex, SEM_INDEFINITE_WAIT) == NO_ERROR);
} /* __PHYSFS_platformGrabMutex */
void __PHYSFS_platformReleaseMutex(void *mutex)
{
DosReleaseMutexSem((HMTX) mutex);
} /* __PHYSFS_platformReleaseMutex */
#endif /* PHYSFS_PLATFORM_OS2 */
/* end of physfs_platform_os2.c ... */
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