minix/lib/libc/stdio/tmpfile.c

31 lines
562 B
C

/*
* tmpfile.c - create and open a temporary file
*/
/* $Header$ */
#if defined(_POSIX_SOURCE)
#include <sys/types.h>
#endif
#include <stdio.h>
#include <string.h>
#include "loc_incl.h"
pid_t _getpid(void);
FILE *
tmpfile(void) {
static char name_buffer[L_tmpnam] = "/tmp/tmp." ;
static char *name = NULL;
FILE *file;
if (!name) {
name = name_buffer + strlen(name_buffer);
name = _i_compute(_getpid(), 10, name, 5);
*name = '\0';
}
file = fopen(name_buffer,"wb+");
if (!file) return (FILE *)NULL;
(void) remove(name_buffer);
return file;
}