60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
// convert.c - Conversion helper functions.
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#include "convert.h"
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#include "defs.h"
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#include "mac_from_unix_data.h"
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#include <CursorCtl.h>
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#include <Files.h>
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#include <MacErrors.h>
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#include <Quickdraw.h>
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int convert_read(short ref, long *count, void *data) {
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OSErr err;
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SpinCursor(1);
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err = FSRead(ref, count, data);
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switch (err) {
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case noErr:
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return kConvertOK;
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case eofErr:
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return kConvertEOF;
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default:
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print_errcode(err, "could not read source file");
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return kConvertError;
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}
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}
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int convert_write(short ref, long count, const void *data) {
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OSErr err;
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SpinCursor(1);
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err = FSWrite(ref, &count, data);
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if (err == noErr) {
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return kConvertOK;
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}
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print_errcode(err, "could not write temp file");
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return kConvertError;
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}
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static unsigned short *gFromUnixData;
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// Get the table for converting from Unix to Macintosh.
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unsigned short *mac_from_unix_data(void) {
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Ptr ptr, src, dest;
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if (gFromUnixData != NULL) {
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return gFromUnixData;
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}
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ptr = NewPtr(FROM_UNIX_DATALEN);
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if (ptr == NULL) {
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print_memerr(FROM_UNIX_DATALEN);
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return NULL;
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}
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src = (void *)kFromUnixData;
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dest = ptr;
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UnpackBits(&src, &dest, FROM_UNIX_DATALEN);
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gFromUnixData = (void *)ptr;
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return gFromUnixData;
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}
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