BSD 4_3 release

[unix-history] / usr / src / lib / libc / gen / mktemp.c

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)mktemp.c    5.2 (Berkeley) 3/9/86";
#endif LIBC_SCCS and not lint

char *
mktemp(as)
char *as;
{
       register char *s;
       register unsigned pid;
       register i;

       pid = getpid();
       s = as;
       while (*s++)
               ;
       s--;
       while (*--s == 'X') {
               *s = (pid%10) + '0';
               pid /= 10;
       }
       s++;
       i = 'a';
       while (access(as, 0) != -1) {
               if (i=='z')
                       return("/");
               *s = i++;
       }
       return(as);
}