mirror of
https://github.com/depp/syncfiles.git
synced 2024-11-24 17:31:40 +00:00
910039b77a
The previous implementation read the entire file into memory and then processed it. This version uses reasonably-sized buffers and can handle files of any size. Since this new conversion code is a bit more complicated, a test suite has been added which can be run on ordinary Unix systems. GitOrigin-RevId: acc7be277103fad1da2d0ca16d1a84be11802fbf
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
// convert.c - Conversion helper functions.
|
|
#include "convert.h"
|
|
|
|
#include "defs.h"
|
|
#include "mac_from_unix_data.h"
|
|
|
|
#include <CursorCtl.h>
|
|
#include <Files.h>
|
|
#include <MacErrors.h>
|
|
#include <Quickdraw.h>
|
|
|
|
int convert_read(short ref, long *count, void *data) {
|
|
OSErr err;
|
|
|
|
SpinCursor(1);
|
|
err = FSRead(ref, count, data);
|
|
switch (err) {
|
|
case noErr:
|
|
return kConvertOK;
|
|
case eofErr:
|
|
return kConvertEOF;
|
|
default:
|
|
print_errcode(err, "could not read source file");
|
|
return kConvertError;
|
|
}
|
|
}
|
|
|
|
int convert_write(short ref, long count, const void *data) {
|
|
OSErr err;
|
|
|
|
SpinCursor(1);
|
|
err = FSWrite(ref, &count, data);
|
|
if (err == noErr) {
|
|
return kConvertOK;
|
|
}
|
|
print_errcode(err, "could not write temp file");
|
|
return kConvertError;
|
|
}
|
|
|
|
static unsigned short *gFromUnixData;
|
|
|
|
// Get the table for converting from Unix to Macintosh.
|
|
unsigned short *mac_from_unix_data(void) {
|
|
Ptr ptr, src, dest;
|
|
|
|
if (gFromUnixData != NULL) {
|
|
return gFromUnixData;
|
|
}
|
|
ptr = NewPtr(FROM_UNIX_DATALEN);
|
|
if (ptr == NULL) {
|
|
print_memerr(FROM_UNIX_DATALEN);
|
|
return NULL;
|
|
}
|
|
src = (void *)kFromUnixData;
|
|
dest = ptr;
|
|
UnpackBits(&src, &dest, FROM_UNIX_DATALEN);
|
|
gFromUnixData = (void *)ptr;
|
|
return gFromUnixData;
|
|
}
|