usr/src/lib/libc/stdio/sscanf.c

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)sscanf.c    5.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <stdio.h>
#include <string.h>
#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "local.h"

/* ARGSUSED */
static int
eofread(cookie, buf, len)
        void *cookie;
        char *buf;
        int len;
{

        return (0);
}

#if __STDC__
sscanf(char *str, char const *fmt, ...)
#else
sscanf(str, fmt, va_alist)
        char *str;
        char *fmt;
        va_dcl
#endif
{
        int ret;
        va_list ap;
        FILE f;

        f._flags = __SRD;
        f._bf._base = f._p = (unsigned char *)str;
        f._bf._size = f._r = strlen(str);
        f._read = eofread;
        f._ub._base = NULL;
        f._lb._base = NULL;
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        ret = __svfscanf(&f, fmt, ap);
        va_end(ap);
        return (ret);
}