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physfs/platform/macclassic.c

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/*
* MacOS Classic support routines for PhysicsFS.
*
* Please see the file LICENSE in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <alloca.h>
/*
* Most of the API calls in here are, according to ADC, available since
* MacOS 8.1. I don't think I used any MacOS 9 or CarbonLib-specific
* functions. There might be one or two 8.5 calls, and perhaps when the
* ADC docs say "Available in MacOS 8.1" they really mean "this works
* with System 6, but we don't want to hear about it at this point."
*
* IsAliasFile() showed up in MacOS 8.5. You can duplicate this code with
* PBGetCatInfoSync(), which is an older API, if you hope the bits in the
* catalog info never change (which they won't for, say, MacOS 8.1).
* See Apple Technote FL-30:
* http://developer.apple.com/technotes/fl/fl_30.html
*
* If you want to use weak pointers and Gestalt, and choose the correct
* code to use during __PHYSFS_platformInit(), I'll accept a patch, but
* chances are, it wasn't worth the time it took to write this, let alone
* implement that.
*/
/*
* Please note that I haven't tried this code with CarbonLib or under
* MacOS X at all. The code in unix.c is known to work with Darwin,
* and you may or may not be better off using that, especially since
* mutexes are no-ops in this file. Patches welcome.
*/
#ifdef __PHYSFS_CARBONIZED__ /* this is currently not defined anywhere. */
#include <Carbon.h>
#else
#include <OSUtils.h>
#include <Processes.h>
#include <Files.h>
#include <TextUtils.h>
#include <Resources.h>
#include <MacMemory.h>
#include <Events.h>
#include <DriverGestalt.h>
#include <Aliases.h>
#endif
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
const char *__PHYSFS_platformDirSeparator = ":";
static const char *get_macos_error_string(OSErr err)
{
if (err == noErr)
return(NULL);
switch (err)
{
case fnfErr: return(ERR_NO_SUCH_FILE);
case notOpenErr: return(ERR_NO_SUCH_VOLUME);
case dirFulErr: return(ERR_DIRECTORY_FULL);
case dskFulErr: return(ERR_DISK_FULL);
case nsvErr: return(ERR_NO_SUCH_VOLUME);
case ioErr: return(ERR_IO_ERROR);
case bdNamErr: return(ERR_BAD_FILENAME);
case fnOpnErr: return(ERR_NOT_A_HANDLE);
case eofErr: return(ERR_PAST_EOF);
case posErr: return(ERR_SEEK_OUT_OF_RANGE);
case tmfoErr: return(ERR_TOO_MANY_HANDLES);
case wPrErr: return(ERR_VOL_LOCKED_HW);
case fLckdErr: return(ERR_FILE_LOCKED);
case vLckdErr: return(ERR_VOL_LOCKED_SW);
case fBsyErr: return(ERR_FILE_OR_DIR_BUSY);
case dupFNErr: return(ERR_FILE_ALREADY_EXISTS);
case opWrErr: return(ERR_FILE_ALREADY_OPEN_W);
case rfNumErr: return(ERR_INVALID_REFNUM);
case gfpErr: return(ERR_GETTING_FILE_POS);
case volOffLinErr: return(ERR_VOLUME_OFFLINE);
case permErr: return(ERR_PERMISSION_DENIED);
case volOnLinErr: return(ERR_VOL_ALREADY_ONLINE);
case nsDrvErr: return(ERR_NO_SUCH_DRIVE);
case noMacDskErr: return(ERR_NOT_MAC_DISK);
case extFSErr: return(ERR_VOL_EXTERNAL_FS);
case fsRnErr: return(ERR_PROBLEM_RENAME);
case badMDBErr: return(ERR_BAD_MASTER_BLOCK);
case wrPermErr: return(ERR_PERMISSION_DENIED);
case memFullErr: return(ERR_OUT_OF_MEMORY);
case dirNFErr: return(ERR_NO_SUCH_PATH);
case tmwdoErr: return(ERR_TOO_MANY_HANDLES);
case badMovErr: return(ERR_CANT_MOVE_FORBIDDEN);
case wrgVolTypErr: return(ERR_WRONG_VOL_TYPE);
case volGoneErr: return(ERR_SERVER_VOL_LOST);
case errFSNameTooLong: return(ERR_BAD_FILENAME);
case errFSNotAFolder: return(ERR_NOT_A_DIR);
case errFSNotAFile: return(ERR_NOT_A_FILE);
case fidNotFound: return(ERR_FILE_ID_NOT_FOUND);
case fidExists: return(ERR_FILE_ID_EXISTS);
case afpAccessDenied: return(ERR_ACCESS_DENIED);
case afpNoServer: return(ERR_SERVER_NO_RESPOND);
case afpUserNotAuth: return(ERR_USER_AUTH_FAILED);
case afpPwdExpiredErr: return(ERR_PWORD_EXPIRED);
case paramErr:
case errFSBadFSRef:
case errFSBadBuffer:
case errFSMissingName:
case errFSBadPosMode:
case errFSBadAllocFlags:
case errFSBadItemCount
case errFSBadSearchParams
case afpDenyConflict
return(ERR_PHYSFS_BAD_OS_CALL);
default: return(ERR_MACOS_GENERIC);
} /* switch */
return(NULL);
} /* get_macos_error_string */
static OSErr oserr(OSErr retval)
{
char buf[128];
const char *errstr = get_macos_error_string(retval);
if (errstr == ERR_MACOS_GENERIC)
{
snprintf(buf, ERR_MACOS_GENERIC, (int) retval);
errstr = buf;
} /* if */
if (errstr != NULL)
__PHYSFS_setError(errstr);
return(retval);
} /* oserr */
static struct ProcessInfoRec procInfo;
static FSSpec procfsspec;
int __PHYSFS_platformInit(void)
{
OSErr err;
ProcessSerialNumber psn;
BAIL_IF_MACRO(oserr(GetCurrentProcess(&psn)) != noErr, NULL, 0);
memset(&procInfo, '\0', sizeof (ProcessInfoRec));
memset(&procfsspec, '\0', sizeof (FSSpec));
procInfo.processInfoLength = sizeof (ProcessInfoRec);
procInfo.processAppSpec = &procfsspec;
err = GetProcessInformation(&psn, &procInfo);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
return(1); /* we're golden. */
} /* __PHYSFS_platformInit */
int __PHYSFS_platformDeinit(void)
{
return(1); /* always succeed. */
} /* __PHYSFS_platformDeinit */
/*
* CD detection code is borrowed from Apple Technical Q&A DV18.
* http://developer.apple.com/qa/dv/dv18.html
*/
char **__PHYSFS_platformDetectAvailableCDs(void)
{
DriverGestaltParam pb;
DrvQEl *dqp;
OSErr status;
char **retval = (char **) malloc(sizeof (char *));
int cd_count = 1;
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
*retval = NULL;
pb.csCode = kDriverGestaltCode;
pb.driverGestaltSelector = kdgDeviceType;
dqp = (DrvQEl *) GetDrvQHdr()->qHead;
while (dqp != NULL)
{
pb.ioCRefNum = dqp->dQRefNum;
pb.ioVRefNum = dqp->dQDrive;
status = PBStatusSync((ParmBlkPtr) &pb);
if ((status == noErr) && (pb.driverGestaltResponse == kdgCDType))
{
Str63 volName;
HParamBlockRec hpbr;
memset(&hpbr, '\0', sizeof (HParamBlockRec));
hpbr.volumeParam.ioNamePtr = volName;
hpbr.volumeParam.ioVRefNum = dqp->dQDrive;
hpbr.volumeParam.ioVolIndex = 0;
if (PBHGetVInfoSync(&hpbr) == noErr)
{
char **tmp = realloc(retval, sizeof (char *) * (cd_count + 1));
if (tmp)
{
char *str = (char *) malloc(volName[0] + 1);
retval = tmp;
if (str != NULL)
{
memcpy(str, &volName[1], volName[0]);
str[volName[0]] = '\0';
retval[cd_count-1] = str;
cd_count++;
} /* if */
} /* if */
} /* if */
} /* if */
dqp = (DrvQEl *) dqp->qLink;
} /* while */
retval[cd_count - 1] = NULL;
return(retval);
} /* __PHYSFS_platformDetectAvailableCDs */
static char *convFSSpecToPath(FSSpec *spec, int includeFile)
{
char *ptr;
char *retval = NULL;
UInt32 retLength = 0;
CInfoPBRec infoPB;
Str255 str255;
str255[0] = spec->name[0];
memcpy(&str255[1], &spec->name[1], str255[0]);
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = str255; /* put name in here. */
infoPB.dirInfo.ioVRefNum = spec->vRefNum; /* ID of bin's volume. */
infoPB.dirInfo.ioDrParID = spec->parID; /* ID of bin's dir. */
infoPB.dirInfo.ioFDirIndex = (includeFile) ? 0 : -1;
/* walk the tree back to the root dir (volume), building path string... */
do
{
/* check parent dir of what we last looked at... */
infoPB.dirInfo.ioDrDirID = infoPB.dirInfo.ioDrParID;
if (oserr(PBGetCatInfoSync(&infoPB)) != noErr)
{
if (retval != NULL)
free(retval);
return(NULL);
} /* if */
infoPB.dirInfo.ioFDirIndex = -1; /* look at parent dir next time. */
/* allocate more space for the retval... */
retLength += str255[0] + 1; /* + 1 for a ':' or null char... */
ptr = (char *) malloc(retLength);
if (ptr == NULL)
{
if (retval != NULL)
free(retval);
BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
} /* if */
/* prepend new dir to retval and cleanup... */
memcpy(ptr, &str255[1], str255[0]);
ptr[str255[0]] = '\0'; /* null terminate it. */
if (retval != NULL)
{
strcat(ptr, ":");
strcat(ptr, retval);
free(retval);
} /* if */
retval = ptr;
} while (infoPB.dirInfo.ioDrDirID != fsRtDirID);
return(retval);
} /* convFSSpecToPath */
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
FSSpec spec;
/* Get the name of the binary's parent directory. */
FSMakeFSSpec(procfsspec.vRefNum, procfsspec.parID, procfsspec.name, &spec);
return(convFSSpecToPath(&spec, 0));
} /* __PHYSFS_platformCalcBaseDir */
char *__PHYSFS_platformGetUserName(void)
{
char *retval = NULL;
StringHandle strHandle;
short origResourceFile = CurResFile();
/* use the System resource file. */
UseResFile(0);
/* apparently, -16096 specifies the username. */
strHandle = oserr(GetString(-16096));
UseResFile(origResourceFile);
BAIL_IF_MACRO(strHandle == NULL, NULL, NULL);
HLock((Handle) strHandle);
retval = (char *) malloc((*strHandle)[0] + 1);
if (retval == NULL)
{
HUnlock((Handle) strHandle);
BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
} /* if */
memcpy(retval, &(*strHandle)[1], (*strHandle)[0]);
retval[(*strHandle)[0]] = '\0'; /* null-terminate it. */
HUnlock((Handle) strHandle);
return(retval);
} /* __PHYSFS_platformGetUserName */
char *__PHYSFS_platformGetUserDir(void)
{
#if 0
return(NULL); /* bah...use default behaviour, I guess. */
#else
/* (Hmm. Default behaviour is broken in the base library. :) ) */
return(__PHYSFS_platformCalcBaseDir(NULL));
#endif
} /* __PHYSFS_platformGetUserDir */
PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
{
return(1); /* single threaded. */
} /* __PHYSFS_platformGetThreadID */
int __PHYSFS_platformStricmp(const char *x, const char *y)
{
extern int _stricmp(const char *, const char *);
return(_stricmp(x, y)); /* (*shrug*) */
} /* __PHYSFS_platformStricmp */
static OSErr fnameToFSSpecNoAlias(const char *fname, FSSpec *spec)
{
OSErr err;
Str255 str255;
int needColon = (strchr(fname, ':') == NULL);
int len = strlen(fname) + ((needColon) ? 1 : 0);
if (len > 255)
return(bdNamErr);
/* !!! FIXME: What happens with relative pathnames? */
str255[0] = len;
memcpy(&str255[1], fname, len);
/* probably just a volume name, which seems to need a ':' at the end. */
if (needColon)
str255[len] = ':';
err = oserr(FSMakeFSSpec(0, 0, str255, spec));
return(err);
} /* fnameToFSSpecNoAlias */
static OSErr fnameToFSSpec(const char *fname, FSSpec *spec)
{
Boolean alias = 0;
Boolean folder = 0;
OSErr err = fnameToFSSpecNoAlias(fname, spec);
if (err == dirNFErr) /* might be an alias in the middle of the path. */
{
/*
* Has to be at least two ':' chars, or we wouldn't get a
* dir-not-found condition. (no ':' means it was just a volume,
* just one ':' means we would have gotten a fnfErr, if anything.
*/
char *ptr;
char *start;
char *path = alloca(strlen(fname) + 1);
strcpy(path, fname);
ptr = strchr(path, ':');
BAIL_IF_MACRO(!ptr, ERR_NO_SUCH_FILE, err); /* just in case */
ptr = strchr(ptr + 1, ':');
BAIL_IF_MACRO(!ptr, ERR_NO_SUCH_FILE, err); /* just in case */
*ptr = '\0';
err = fnameToFSSpecNoAlias(path, spec); /* get first dir. */
BAIL_IF_MACRO(oserr(err) != noErr, NULL, err);
start = ptr;
ptr = strchr(start + 1, ':');
/* Now check each element of the path for aliases... */
do
{
CInfoPBRec infoPB;
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = spec->name;
infoPB.dirInfo.ioVRefNum = spec->vRefNum;
infoPB.dirInfo.ioDrDirID = spec->parID;
infoPB.dirInfo.ioFDirIndex = 0;
err = PBGetCatInfoSync(&infoPB);
if (err != noErr) /* not an alias, really just a bogus path. */
return(fnameToFSSpecNoAlias(fname, spec)); /* reset */
if ((infoPB.dirInfo.ioFlAttrib & kioFlAttribDirMask) != 0)
spec->parID = infoPB.dirInfo.ioDrDirID;
if (ptr != NULL) /* terminate string after next element. */
*ptr = '\0';
*start = strlen(start + 1); /* make it a pstring. */
err = FSMakeFSSpec(spec->vRefNum, spec->parID,
(const unsigned char *) start, spec);
if (err != noErr) /* not an alias, really a bogus path. */
return(fnameToFSSpecNoAlias(fname, spec)); /* reset */
err = ResolveAliasFileWithMountFlags(spec, 1, &folder, &alias, 0);
if (err != noErr) /* not an alias, really a bogus path. */
return(fnameToFSSpecNoAlias(fname, spec)); /* reset */
start = ptr; /* move to the next element. */
if (ptr != NULL)
ptr = strchr(start + 1, ':');
} while (start != NULL);
} /* if */
else /* there's something there; make sure final file is not an alias. */
{
BAIL_IF_MACRO(oserr(err) != noErr, NULL, err);
err = ResolveAliasFileWithMountFlags(spec, 1, &folder, &alias, 0);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, err);
} /* else */
return(noErr); /* w00t. */
} /* fnameToFSSpec */
int __PHYSFS_platformExists(const char *fname)
{
FSSpec spec;
return(fnameToFSSpec(fname, &spec) == noErr);
} /* __PHYSFS_platformExists */
int __PHYSFS_platformIsSymLink(const char *fname)
{
OSErr err;
FSSpec spec;
Boolean a = 0;
Boolean f = 0;
CInfoPBRec infoPB;
char *ptr;
char *dir = alloca(strlen(fname) + 1);
BAIL_IF_MACRO(dir == NULL, ERR_OUT_OF_MEMORY, 0);
strcpy(dir, fname);
ptr = strrchr(dir, ':');
if (ptr == NULL) /* just a volume name? Can't be a symlink. */
return(0);
/* resolve aliases up to the actual file... */
*ptr = '\0';
BAIL_IF_MACRO(fnameToFSSpec(dir, &spec) != noErr, NULL, 0);
*ptr = strlen(ptr + 1); /* ptr is now a pascal string. Yikes! */
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = spec.name;
infoPB.dirInfo.ioVRefNum = spec.vRefNum;
infoPB.dirInfo.ioDrDirID = spec.parID;
infoPB.dirInfo.ioFDirIndex = 0;
BAIL_IF_MACRO(oserr(PBGetCatInfoSync(&infoPB)) != noErr, NULL, 0);
err = FSMakeFSSpec(spec.vRefNum, infoPB.dirInfo.ioDrDirID,
(const unsigned char *) ptr, &spec);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
BAIL_IF_MACRO(oserr(IsAliasFile(&spec, &a, &f)) != noErr, NULL, 0);
return(a);
} /* __PHYSFS_platformIsSymlink */
int __PHYSFS_platformIsDirectory(const char *fname)
{
FSSpec spec;
CInfoPBRec infoPB;
OSErr err;
BAIL_IF_MACRO(fnameToFSSpec(fname, &spec) != noErr, NULL, 0);
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = spec.name; /* put name in here. */
infoPB.dirInfo.ioVRefNum = spec.vRefNum; /* ID of file's volume. */
infoPB.dirInfo.ioDrDirID = spec.parID; /* ID of bin's dir. */
infoPB.dirInfo.ioFDirIndex = 0; /* file (not parent) info. */
err = PBGetCatInfoSync(&infoPB);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
return((infoPB.dirInfo.ioFlAttrib & kioFlAttribDirMask) != 0);
} /* __PHYSFS_platformIsDirectory */
char *__PHYSFS_platformCvtToDependent(const char *prepend,
const char *dirName,
const char *append)
{
int len = ((prepend) ? strlen(prepend) : 0) +
((append) ? strlen(append) : 0) +
strlen(dirName) + 1;
const char *src;
char *dst;
char *retval = malloc(len);
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
if (prepend != NULL)
{
strcpy(retval, prepend);
dst = retval + strlen(retval);
} /* if */
else
{
*retval = '\0';
dst = retval;
} /* else */
for (src = dirName; *src; src++, dst++)
*dst = ((*src == '/') ? ':' : *src);
*dst = '\0';
return(retval);
} /* __PHYSFS_platformCvtToDependent */
void __PHYSFS_platformTimeslice(void)
{
SystemTask();
} /* __PHYSFS_platformTimeslice */
LinkedStringList *__PHYSFS_platformEnumerateFiles(const char *dirname,
int omitSymLinks)
{
LinkedStringList *ret = NULL, *p = NULL;
UInt16 i;
UInt16 max;
FSSpec spec;
CInfoPBRec infoPB;
Str255 str255;
long dirID;
BAIL_IF_MACRO(fnameToFSSpec(dirname, &spec) != noErr, NULL, 0);
/* get the dir ID of what we want to enumerate... */
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = spec.name; /* name of dir to enum. */
infoPB.dirInfo.ioVRefNum = spec.vRefNum; /* ID of file's volume. */
infoPB.dirInfo.ioDrDirID = spec.parID; /* ID of dir. */
infoPB.dirInfo.ioFDirIndex = 0; /* file (not parent) info. */
BAIL_IF_MACRO(oserr(PBGetCatInfoSync(&infoPB)) != noErr, NULL, NULL);
if ((infoPB.dirInfo.ioFlAttrib & kioFlAttribDirMask) == 0)
BAIL_MACRO(ERR_NOT_A_DIR, NULL);
dirID = infoPB.dirInfo.ioDrDirID;
max = infoPB.dirInfo.ioDrNmFls;
for (i = 1; i <= max; i++)
{
FSSpec aliasspec;
Boolean alias = 0;
Boolean folder = 0;
memset(&infoPB, '\0', sizeof (CInfoPBRec));
str255[0] = 0;
infoPB.dirInfo.ioNamePtr = str255; /* store name in here. */
infoPB.dirInfo.ioVRefNum = spec.vRefNum; /* ID of dir's volume. */
infoPB.dirInfo.ioDrDirID = dirID; /* ID of dir. */
infoPB.dirInfo.ioFDirIndex = i; /* next file's info. */
if (PBGetCatInfoSync(&infoPB) != noErr)
continue; /* skip this file. Oh well. */
if (FSMakeFSSpec(spec.vRefNum, dirID, str255, &aliasspec) != noErr)
continue; /* skip it. */
if (IsAliasFile(&aliasspec, &alias, &folder) != noErr)
continue; /* skip it. */
if ((alias) && (omitSymLinks))
continue;
/* still here? Add it to the list. */
ret = __PHYSFS_addToLinkedStringList(ret, &p, &str255[1], str255[0]);
} /* for */
return(ret);
} /* __PHYSFS_platformEnumerateFiles */
char *__PHYSFS_platformCurrentDir(void)
{
/*
* I don't think MacOS has a concept of "current directory", beyond
* what is grafted on by a given standard C library implementation,
* so just return the base dir.
* We don't use this for anything crucial at the moment anyhow.
*/
return(__PHYSFS_platformCalcBaseDir(NULL));
} /* __PHYSFS_platformCurrentDir */
char *__PHYSFS_platformRealPath(const char *path)
{
/*
* fnameToFSSpec() will resolve any symlinks to get to the real
* file's FSSpec, which, when converted, will contain the real
* direct path to a given file. convFSSpecToPath() mallocs a
* return value buffer.
*/
FSSpec spec;
BAIL_IF_MACRO(fnameToFSSpec(path, &spec) != noErr, NULL, NULL);
return(convFSSpecToPath(&spec, 1));
} /* __PHYSFS_platformRealPath */
int __PHYSFS_platformMkDir(const char *path)
{
SInt32 val = 0;
FSSpec spec;
OSErr err = fnameToFSSpec(path, &spec);
BAIL_IF_MACRO(err == noErr, ERR_FILE_EXISTS, 0);
BAIL_IF_MACRO(err != fnfErr, NULL, 0);
err = DirCreate(spec.vRefNum, spec.parID, spec.name, &val);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
return(1);
} /* __PHYSFS_platformMkDir */
static SInt16 *macDoOpen(const char *fname, SInt8 perm, int createIfMissing)
{
int created = 0;
SInt16 *retval = NULL;
FSSpec spec;
OSErr err = fnameToFSSpec(fname, &spec);
BAIL_IF_MACRO((err != noErr) && (err != fnfErr), NULL, NULL);
if (err == fnfErr)
{
BAIL_IF_MACRO(!createIfMissing, ERR_NO_SUCH_FILE, NULL);
err = HCreate(spec.vRefNum, spec.parID, spec.name,
procInfo.processSignature, 'BINA');
BAIL_IF_MACRO(oserr(err) != noErr, NULL, NULL);
created = 1;
} /* if */
retval = (SInt16 *) malloc(sizeof (SInt16));
if (retval == NULL)
{
if (created)
HDelete(spec.vRefNum, spec.parID, spec.name);
BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
} /* if */
err = HOpenDF(spec.vRefNum, spec.parID, spec.name, perm, retval)
if (oserr(err) != noErr)
{
free(retval);
if (created)
HDelete(spec.vRefNum, spec.parID, spec.name);
return(NULL);
} /* if */
return(retval);
} /* macDoOpen */
void *__PHYSFS_platformOpenRead(const char *filename)
{
SInt16 *retval = macDoOpen(filename, fsRdPerm, 0);
if (retval != NULL) /* got a file; seek to start. */
{
if (oserr(SetFPos(*retval, fsFromStart, 0)) != noErr)
{
FSClose(*retval);
return(NULL);
} /* if */
} /* if */
return((void *) retval);
} /* __PHYSFS_platformOpenRead */
void *__PHYSFS_platformOpenWrite(const char *filename)
{
SInt16 *retval = macDoOpen(filename, fsRdWrPerm, 1);
if (retval != NULL) /* got a file; truncate it. */
{
if ((oserr(SetEOF(*retval, 0)) != noErr) ||
(oserr(SetFPos(*retval, fsFromStart, 0)) != noErr))
{
FSClose(*retval);
return(NULL);
} /* if */
} /* if */
return((void *) retval);
} /* __PHYSFS_platformOpenWrite */
void *__PHYSFS_platformOpenAppend(const char *filename)
{
SInt16 *retval = macDoOpen(filename, fsRdWrPerm, 1);
if (retval != NULL) /* got a file; seek to end. */
{
if (oserr(SetFPos(*retval, fsFromLEOF, 0)) != noErr)
{
FSClose(*retval);
return(NULL);
} /* if */
} /* if */
return(retval);
} /* __PHYSFS_platformOpenAppend */
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buffer,
PHYSFS_uint32 size, PHYSFS_uint32 count)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 br;
PHYSFS_uint32 i;
for (i = 0; i < count; i++)
{
br = size;
BAIL_IF_MACRO(oserr(FSRead(ref, &br, buffer)) != noErr, NULL, i);
BAIL_IF_MACRO(br != size, NULL, i); /* !!! FIXME: seek back if only read part of an object! */
buffer = ((PHYSFS_uint8 *) buffer) + size;
} /* for */
return(count);
} /* __PHYSFS_platformRead */
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
PHYSFS_uint32 size, PHYSFS_uint32 count)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 bw;
PHYSFS_uint32 i;
for (i = 0; i < count; i++)
{
bw = size;
BAIL_IF_MACRO(oserr(FSWrite(ref, &bw, buffer)) != noErr, NULL, i);
BAIL_IF_MACRO(bw != size, NULL, i); /* !!! FIXME: seek back if only wrote part of an object! */
buffer = ((PHYSFS_uint8 *) buffer) + size;
} /* for */
return(count);
} /* __PHYSFS_platformWrite */
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
{
SInt16 ref = *((SInt16 *) opaque);
OSErr err = SetFPos(ref, fsFromStart, (SInt32) pos);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
return(1);
} /* __PHYSFS_platformSeek */
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 curPos;
BAIL_IF_MACRO(oserr(GetFPos(ref, &curPos)) != noErr, NULL, -1);
return((PHYSFS_sint64) curPos);
} /* __PHYSFS_platformTell */
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 eofPos;
BAIL_IF_MACRO(oserr(GetEOF(ref, &eofPos)) != noErr, NULL, -1);
return((PHYSFS_sint64) eofPos);
} /* __PHYSFS_platformFileLength */
int __PHYSFS_platformEOF(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 eofPos, curPos;
BAIL_IF_MACRO(oserr(GetEOF(ref, &eofPos)) != noErr, NULL, 1);
BAIL_IF_MACRO(oserr(GetFPos(ref, &curPos)) != noErr, NULL, 1);
return(curPos >= eofPos);
} /* __PHYSFS_platformEOF */
int __PHYSFS_platformFlush(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
ParamBlockRec pb;
memset(&pb, '\0', sizeof (ParamBlockRec));
pb.ioParam.ioRefNum = ref;
BAIL_IF_MACRO(oserr(PBFlushFileSync(&pb)) != noErr, NULL, 0);
return(1);
} /* __PHYSFS_platformFlush */
int __PHYSFS_platformClose(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt16 vRefNum;
Str63 volName;
int flushVol = 0;
if (GetVRefNum(ref, &vRefNum) == noErr)
{
HParamBlockRec hpbr;
memset(&hpbr, '\0', sizeof (HParamBlockRec));
hpbr.volumeParam.ioNamePtr = volName;
hpbr.volumeParam.ioVRefNum = vRefNum;
hpbr.volumeParam.ioVolIndex = 0;
if (PBHGetVInfoSync(&hpbr) == noErr)
flushVol = 1;
} /* if */
BAIL_IF_MACRO(oserr(FSClose(ref)) != noErr, NULL, 0);
free(opaque);
if (flushVol)
FlushVol(volName, vRefNum); /* update catalog info, etc. */
return(1);
} /* __PHYSFS_platformClose */
int __PHYSFS_platformDelete(const char *path)
{
FSSpec spec;
OSErr err;
BAIL_IF_MACRO(fnameToFSSpec(path, &spec) != noErr, NULL, 0);
err = HDelete(spec.vRefNum, spec.parID, spec.name);
BAIL_IF_MACRO(oserr(err) != noErr, NULL, 0);
return(1);
} /* __PHYSFS_platformDelete */
void *__PHYSFS_platformCreateMutex(void)
{
return((void *) 0x0001); /* no mutexes on MacOS Classic. */
} /* __PHYSFS_platformCreateMutex */
void __PHYSFS_platformDestroyMutex(void *mutex)
{
/* no mutexes on MacOS Classic. */
} /* __PHYSFS_platformDestroyMutex */
int __PHYSFS_platformGrabMutex(void *mutex)
{
return(1); /* no mutexes on MacOS Classic. */
} /* __PHYSFS_platformGrabMutex */
void __PHYSFS_platformReleaseMutex(void *mutex)
{
/* no mutexes on MacOS Classic. */
} /* __PHYSFS_platformReleaseMutex */
PHYSFS_sint64 __PHYSFS_platformGetLastModTime(const char *fname)
{
FSSpec spec;
CInfoPBRec infoPB;
UInt32 modDate;
if (fnameToFSSpec(fname, &spec) != noErr)
return(-1); /* fnameToFSSpec() sets physfs error message. */
memset(&infoPB, '\0', sizeof (CInfoPBRec));
infoPB.dirInfo.ioNamePtr = spec.name;
infoPB.dirInfo.ioVRefNum = spec.vRefNum;
infoPB.dirInfo.ioDrDirID = spec.parID;
infoPB.dirInfo.ioFDirIndex = 0;
BAIL_IF_MACRO(oserr(PBGetCatInfoSync(&infoPB)) != noErr, NULL, -1);
modDate = ((infoPB.dirInfo.ioFlAttrib & kioFlAttribDirMask) != 0) ?
infoPB.dirInfo.ioDrMdDat : infoPB.hFileInfo.ioFlMdDat;
/* epoch is different on MacOS. They use Jan 1, 1904, apparently. */
/* subtract seconds between those epochs, counting leap years. */
modDate -= 2082844800;
return((PHYSFS_sint64) modDate);
} /* __PHYSFS_platformGetLastModTime */
/* end of macclassic.c ... */
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