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#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "file.h"
/*
* Copy the data from source to target
*/
int copyfile(Stream_t *Source, Stream_t *Target)
{
char buffer[16384];
int pos;
int ret, retw;
if (!Source){
fprintf(stderr,"Couldn't open source file\n");
return -1;
}
if (!Target){
fprintf(stderr,"Couldn't open target file\n");
return -1;
}
pos = 0;
while(1){
ret = READS(Source, buffer, pos, 16384);
if (ret < 0 ){
perror("file read");
return -1;
}
if(got_signal)
return -1;
if (ret == 0)
break;
if ((retw = force_write(Target, buffer, pos, ret)) != ret){
if(retw < 0 )
perror("write");
else
fprintf(stderr,
"Short write %d instead of %d\n", retw,
ret);
return ret;
}
pos += ret;
}
return pos;
}
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