/*

* 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 <stdio.h>

#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_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[sizeof (ERR_MACOS_GENERIC) + 32];

const char *errstr = get_macos_error_string(retval);

if (strcmp(errstr, ERR_MACOS_GENERIC) == 0)

{

snprintf(buf, sizeof (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 = 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, (const char *) &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 ... */