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42 lines
888 B
C
42 lines
888 B
C
/* Chdir for the Macintosh.
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Public domain by Guido van Rossum, CWI, Amsterdam (July 1987).
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Pathnames must be Macintosh paths, with colons as separators. */
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#include "macdefs.h"
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#ifdef __MWERKS__
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/* XXXX All compilers should use this, really */
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#include <LowMem.h>
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#else
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/* Last directory used by Standard File */
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#define SFSaveDisk (*(short *)0x214)
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#define CurDirStore (*(long *)0x398)
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#endif
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/* Change current directory. */
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int
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chdir(path)
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char *path;
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{
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WDPBRec pb;
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pb.ioNamePtr= (StringPtr) Pstring(path);
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pb.ioVRefNum= 0;
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pb.ioWDDirID= 0;
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if (PBHSetVol(&pb, FALSE) != noErr) {
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errno= ENOENT;
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return -1;
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}
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if (PBHGetVol(&pb, FALSE) == noErr) {
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/* Set the Standard File directory */
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#ifdef __MWERKS__
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LMSetSFSaveDisk(-pb.ioWDVRefNum);
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LMSetCurDirStore(pb.ioWDDirID);
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#else
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SFSaveDisk= -pb.ioWDVRefNum;
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CurDirStore= pb.ioWDDirID;
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#endif
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}
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return 0;
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}
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