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#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include "9p.h"
void
readbuf(Req *r, void *s, long n)
{
r->ofcall.count = r->ifcall.count;
if(r->ifcall.offset >= n){
r->ofcall.count = 0;
return;
}
if(r->ifcall.offset+r->ofcall.count > n)
r->ofcall.count = n - r->ifcall.offset;
memmove(r->ofcall.data, (char*)s+r->ifcall.offset, r->ofcall.count);
}
void
readstr(Req *r, char *s)
{
if(s == nil)
r->ofcall.count = 0;
else
readbuf(r, s, strlen(s));
}
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