/*

* 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.

#include <Carbon.h>

#else

#include <OSUtils.h>

#include <Processes.h>

#include <Files.h>

#include <TextUtils.h>

#include <Resources.h>

#include <MacMemory.h>

#endif

#define __PHYSICSFS_INTERNAL__

#include "physfs_internal.h"

const char *__PHYSFS_platformDirSeparator = ":";

{

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 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 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 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:

} /* switch */

return(NULL);

errstr = buf;

} /* if */

if (errstr != NULL)

} /* oserr */

static struct ProcessInfoRec procInfo;

static FSSpec procfsspec;

int __PHYSFS_platformInit(void)

{

OSErr err;

ProcessSerialNumber psn;

memset(&procInfo, '\0', sizeof (ProcessInfoRec));

memset(&procfsspec, '\0', sizeof (FSSpec));

procInfo.processInfoLength = sizeof (ProcessInfoRec);

procInfo.processAppSpec = &procfsspec;

err = GetProcessInformation(&psn, &procInfo);

} /* __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

*/

DriverGestaltParam pb;

DrvQEl *dqp;

OSErr status;

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)

{

size = (size_t) volName[0]; /* convert to ASCIZ string... */

memmove(&volName[0], &volName[1], size);

volName[size] = '\0';

cb(data, volName);

} /* if */

} /* if */

dqp = (DrvQEl *) dqp->qLink;

} /* while */

} /* __PHYSFS_platformDetectAvailableCDs */

{

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]);

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 (retval != NULL)

free(retval);

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. */

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)

{

#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)

{

int ux, uy;

do

{

ux = toupper((int) *x);

uy = toupper((int) *y);

if (ux != uy)

return((ux > uy) ? 1 : -1);

x++;

y++;

} while ((ux) && (uy));

return(0);

} /* __PHYSFS_platformStricmp */

int ux, uy;

if (!len)

return(0);

do

{

ux = toupper((int) *x);

uy = toupper((int) *y);

if (ux != uy)

return((ux > uy) ? 1 : -1);

x++;

y++;

len--;

} while ((ux) && (uy) && (len));

return(0);

} /* __PHYSFS_platformStrnicmp */

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] = ':';

} /* 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, ':');

*ptr = '\0';

err = fnameToFSSpecNoAlias(path, spec); /* get first dir. */

start = ptr;

ptr = strchr(start + 1, ':');

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);

return(fnameToFSSpecNoAlias(fname, spec)); /* reset */

if ((infoPB.dirInfo.ioFlAttrib & kioFlAttribDirMask) != 0)

spec->parID = infoPB.dirInfo.ioDrDirID;

*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. */

{

} /* 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';

*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;

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);

} /* __PHYSFS_platformIsSymlink */

int __PHYSFS_platformIsDirectory(const char *fname)

{

FSSpec spec;

CInfoPBRec infoPB;

memset(&infoPB, '\0', sizeof (CInfoPBRec));

infoPB.dirInfo.ioNamePtr = spec.name; /* put name in here. */

infoPB.dirInfo.ioVRefNum = spec.vRefNum; /* ID of file's volume. */

} /* __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)

{

} /* __PHYSFS_platformTimeslice */

/* returns int so we can use BAIL*MACRO... */

static int macClassicEnumerateFiles(const char *dirname,

int omitSymLinks,

PHYSFS_StringCallback callback,

void *callbackdata)

UInt16 i;

UInt16 max;

FSSpec spec;

CInfoPBRec infoPB;

Str255 str255;

/* 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. */

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 (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. */

size = (size_t) str255[0]; /* (convert to ASCIZ string...) */

memmove(&str255[0], &str255[1], size);

str255[size] = '\0';

callback(callbackdata, str255);

void __PHYSFS_platformEnumerateFiles(const char *dirname,

int omitSymLinks,

PHYSFS_StringCallback callback,

void *callbackdata)

{

macClassicEnumerateFiles(dirname, omitSymLinks, callback, callbackdata);

} /* __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;

} /* __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);

err = DirCreate(spec.vRefNum, spec.parID, spec.name, &val);

} /* __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);

if (err == fnfErr)

{

err = HCreate(spec.vRefNum, spec.parID, spec.name,

procInfo.processSignature, 'BINA');

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 */

{

free(retval);

if (created)

HDelete(spec.vRefNum, spec.parID, spec.name);

} /* if */

return(retval);

} /* macDoOpen */

void *__PHYSFS_platformOpenRead(const char *filename)

{