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#include "readwrite.h"
#include "substdio.h"
#include "subfd.h"
int subfd_read(fd,buf,len) int fd; char *buf; int len;
{
if (substdio_flush(subfdout) == -1) return -1;
return read(fd,buf,len);
}
char subfd_inbuf[SUBSTDIO_INSIZE];
static substdio it = SUBSTDIO_FDBUF(subfd_read,0,subfd_inbuf,SUBSTDIO_INSIZE);
substdio *subfdin = ⁢
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