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