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#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "sys9.h"
#undef OPEN
#include "../stdio/iolib.h"
#include "lib.h"
#include "dir.h"
FILE *
tmpfile(void){
FILE *f;
static char name[]="/tmp/tf0000000000000";
char *p;
int n;
for(f=_IO_stream;f!=&_IO_stream[FOPEN_MAX];f++)
if(f->state==CLOSED)
break;
if(f==&_IO_stream[FOPEN_MAX])
return NULL;
while(access(name, 0) >= 0){
p = name+7;
while(*p == '9')
*p++ = '0';
if(*p == '\0')
return NULL;
++*p;
}
n = _CREATE(name, 64|2, 0777); /* remove-on-close */
if(n==-1){
_syserrno();
return NULL;
}
_fdinfo[n].flags = FD_ISOPEN;
_fdinfo[n].oflags = 2;
f->fd=n;
f->flags=0;
f->state=OPEN;
f->buf=0;
f->rp=0;
f->wp=0;
f->lp=0;
return f;
}
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