/* tmpnam.c	- devise a temporary name. stdio.h *//* Copyright 1992-1993 Wind River Systems, Inc. *//* modification history --------------------01d,23sep93,jmm  made tmpnam()'s buffer static (spr 2525)01c,05mar93,jdi  documentation cleanup for 5.1.01b,20sep92,smb  documentation additions01a,29jul92,smb  written.*/ /*DESCRIPTIONINCLUDE FILE: stdio.h, string.hSEE ALSO: American National Standard X3.159-1989NOMANUAL*/#include "vxWorks.h"#include "stdio.h"#include "string.h"/******************************************************************************** tmpnam - generate a temporary file name (ANSI)** This routine generates a string that is a valid file name and not the same* as the name of an existing file.  It generates a different string each* time it is called, up to TMP_MAX times.** If the argument is a null pointer, tmpnam() leaves its* result in an internal static object and returns a pointer to that* object.  Subsequent calls to tmpnam() may modify the same* object.  If the argument is not a null pointer, it is assumed to* point to an array of at least L_tmpnam chars; tmpnam() writes* its result in that array and returns the argument as its value.** INCLUDE FILES: stdio.h ** RETURNS: A pointer to the file name.*/char * tmpnam    (    char *  s	/* name buffer */    )    {    int             index;    char *          pos;    ushort_t        t;    static char     buf [L_tmpnam];	/* internal buffer for name */    static ushort_t seed = 0;		/* used to generate unique name */    /* if parameter is NULL use internal buffer */    if (s == NULL)    	s = buf;    /* generate unique name */    strcpy (s, "tmp");    /* fill up the name buffer from the last position */    index = 5;    pos = s + strlen (s) + index;    *pos = '\0';    seed++;    for (t = seed; 0 <= --index; t >>= 3)    	*--pos = '0' + (t & 07);    /* return name buffer */    return (s);    }