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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.
*/
#include <stdlib.h>
#include <string.h>
/*
* 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.
*/
#ifdef __PHYSFS_CARBONIZED__
#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>
#endif
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
const char *__PHYSFS_platformDirSeparator = ":";
static struct ProcessInfoRec procInfo;
static FSSpec procfsspec;
int __PHYSFS_platformInit(void)
{
OSErr err;
ProcessSerialNumber psn;
BAIL_IF_MACRO(GetCurrentProcess(&psn) != noErr, ERR_OS_ERROR, 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(err != noErr, ERR_OS_ERROR, 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 */
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
char *ptr;
char *retval = NULL;
UInt32 retLength = 0;
CInfoPBRec infoPB;
Str255 str255;
FSSpec spec;
/* Get the name of the binary's parent directory. */
memcpy(&spec, &procfsspec, sizeof (FSSpec));
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 = -1; /* get dir (not file) info. */
/* 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 (PBGetCatInfoSync(&infoPB) != noErr)
{
if (retval != NULL)
free(retval);
BAIL_MACRO(ERR_OS_ERROR, NULL);
} /* if */
/* 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);
} /* __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, ERR_OS_ERROR, 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)
{
return(NULL); /* bah...use default behaviour, I guess. */
} /* __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 fnameToFSSpec(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 = FSMakeFSSpec(0, 0, str255, spec);
return(err);
} /* fnameToFSSpec */
int __PHYSFS_platformExists(const char *fname)
{
FSSpec spec;
return(fnameToFSSpec(fname, &spec) == noErr);
} /* __PHYSFS_platformExists */
int __PHYSFS_platformIsSymLink(const char *fname)
{
return(0); /* !!! FIXME: What happens if (fname) is an alias? */
} /* __PHYSFS_platformIsSymlink */
int __PHYSFS_platformIsDirectory(const char *fname)
{
FSSpec spec;
CInfoPBRec infoPB;
OSErr err;
BAIL_IF_MACRO(fnameToFSSpec(fname, &spec) != noErr, ERR_OS_ERROR, 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(err != noErr, ERR_OS_ERROR, 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 *retval = NULL;
LinkedStringList *l = NULL;
LinkedStringList *prev = NULL;
UInt16 i;
UInt16 max;
FSSpec spec;
CInfoPBRec infoPB;
Str255 str255;
long dirID;
BAIL_IF_MACRO(fnameToFSSpec(dirname, &spec) != noErr, ERR_OS_ERROR, 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(PBGetCatInfoSync(&infoPB) != noErr, ERR_OS_ERROR, 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++)
{
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. */
l = (LinkedStringList *) malloc(sizeof (LinkedStringList));
if (l == NULL)
break;
l->str = (char *) malloc(str255[0] + 1);
if (l->str == NULL)
{
free(l);
break;
} /* if */
memcpy(l->str, &str255[1], str255[0]);
l->str[str255[0]] = '\0';
if (retval == NULL)
retval = l;
else
prev->next = l;
prev = l;
l->next = NULL;
} /* for */
return(retval);
} /* __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)
{
/* !!! FIXME: This isn't nearly right. */
char *retval = (char *) malloc(strlen(path) + 1);
strcpy(retval, path);
return(retval);
} /* __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, ERR_OS_ERROR, 0);
err = DirCreate(spec.vRefNum, spec.parID, spec.name, &val);
BAIL_IF_MACRO(err != noErr, ERR_OS_ERROR, 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), ERR_OS_ERROR, NULL);
if (err == fnfErr)
{
BAIL_IF_MACRO(!createIfMissing, ERR_FILE_NOT_FOUND, NULL);
err = HCreate(spec.vRefNum, spec.parID, spec.name,
procInfo.processSignature, 'BINA');
BAIL_IF_MACRO(err != noErr, ERR_OS_ERROR, 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 */
if (HOpenDF(spec.vRefNum, spec.parID, spec.name, perm, retval) != noErr)
{
free(retval);
if (created)
HDelete(spec.vRefNum, spec.parID, spec.name);
BAIL_MACRO(ERR_OS_ERROR, 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 (SetFPos(*retval, fsFromStart, 0) != noErr)
{
FSClose(*retval);
BAIL_MACRO(ERR_OS_ERROR, 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 ((SetEOF(*retval, 0) != noErr) ||
(SetFPos(*retval, fsFromStart, 0) != noErr))
{
FSClose(*retval);
BAIL_MACRO(ERR_OS_ERROR, 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 (SetFPos(*retval, fsFromLEOF, 0) != noErr)
{
FSClose(*retval);
BAIL_MACRO(ERR_OS_ERROR, 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(FSRead(ref, &br, buffer) != noErr, ERR_OS_ERROR, i);
BAIL_IF_MACRO(br != size, ERR_OS_ERROR, i);
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(FSWrite(ref, &bw, buffer) != noErr, ERR_OS_ERROR, i);
BAIL_IF_MACRO(bw != size, ERR_OS_ERROR, i);
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(err != noErr, ERR_OS_ERROR, 0);
return(1);
} /* __PHYSFS_platformSeek */
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 curPos;
BAIL_IF_MACRO(GetFPos(ref, &curPos) != noErr, ERR_OS_ERROR, -1);
return((PHYSFS_sint64) curPos);
} /* __PHYSFS_platformTell */
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 eofPos;
BAIL_IF_MACRO(GetEOF(ref, &eofPos) != noErr, ERR_OS_ERROR, -1);
return((PHYSFS_sint64) eofPos);
} /* __PHYSFS_platformFileLength */
int __PHYSFS_platformEOF(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt32 eofPos, curPos;
BAIL_IF_MACRO(GetEOF(ref, &eofPos) != noErr, ERR_OS_ERROR, 1);
BAIL_IF_MACRO(GetFPos(ref, &curPos) != noErr, ERR_OS_ERROR, 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(PBFlushFileSync(&pb) != noErr, ERR_OS_ERROR, 0);
return(1);
} /* __PHYSFS_platformFlush */
int __PHYSFS_platformClose(void *opaque)
{
SInt16 ref = *((SInt16 *) opaque);
SInt16 vRefNum;
HParamBlockRec hpbr;
Str63 volName;
BAIL_IF_MACRO(GetVRefNum (ref, &vRefNum) != noErr, ERR_OS_ERROR, 0);
memset(&hpbr, '\0', sizeof (HParamBlockRec));
hpbr.volumeParam.ioNamePtr = volName;
hpbr.volumeParam.ioVRefNum = vRefNum;
hpbr.volumeParam.ioVolIndex = 0;
BAIL_IF_MACRO(PBHGetVInfoSync(&hpbr) != noErr, ERR_OS_ERROR, 0);
BAIL_IF_MACRO(FSClose(ref) != noErr, ERR_OS_ERROR, 0);
free(opaque);
FlushVol(volName, vRefNum);
return(1);
} /* __PHYSFS_platformClose */
int __PHYSFS_platformDelete(const char *path)
{
FSSpec spec;
OSErr err;
BAIL_IF_MACRO(fnameToFSSpec(path, &spec) != noErr, ERR_OS_ERROR, 0);
err = HDelete(spec.vRefNum, spec.parID, spec.name);
BAIL_IF_MACRO(err != noErr, ERR_OS_ERROR, 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 */
/* end of macclassic.c ... */
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