StdLib/LibC/Stdio: fix "missing braces around initializer"

[mirror_edk2.git] / StdLib / LibC / Stdio / ftello.c

/*  $NetBSD: ftello.c,v 1.4 2003/08/07 16:43:26 agc Exp $ */\r
\r
/*-\r
 * Copyright (c) 1990, 1993\r
 *  The Regents of the University of California.  All rights reserved.\r
 *\r
 * This code is derived from software contributed to Berkeley by\r
 * Chris Torek.\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 * 3. Neither the name of the University nor the names of its contributors\r
 *    may be used to endorse or promote products derived from this software\r
 *    without specific prior written permission.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
 * SUCH DAMAGE.\r
 */\r
#include  <LibConfig.h>\r
#include <sys/EfiCdefs.h>\r
#if defined(LIBC_SCCS) && !defined(lint)\r
__RCSID("$NetBSD: ftello.c,v 1.4 2003/08/07 16:43:26 agc Exp $");\r
#endif /* LIBC_SCCS and not lint */\r
\r
#include "namespace.h"\r
#include <assert.h>\r
#include <errno.h>\r
#include <stdio.h>\r
#include "reentrant.h"\r
#include "local.h"\r
\r
#ifdef __weak_alias\r
__weak_alias(ftello, _ftello)\r
#endif\r
\r
/*\r
 * ftell: return current offset.\r
 */\r
off_t\r
ftello(FILE *fp)\r
{\r
  fpos_t pos;\r
\r
  FLOCKFILE(fp);\r
\r
  if (fp->_seek == NULL) {\r
    FUNLOCKFILE(fp);\r
    errno = ESPIPE;     /* historic practice */\r
    return ((off_t)-1);\r
  }\r
\r
  /*\r
   * Find offset of underlying I/O object, then\r
   * adjust for buffered bytes.\r
   */\r
  __sflush(fp);   /* may adjust seek offset on append stream */\r
  if (fp->_flags & __SOFF)\r
    pos = fp->_offset;\r
  else {\r
    pos = (*fp->_seek)(fp->_cookie, (fpos_t)0, SEEK_CUR);\r
    if (pos == (fpos_t)-1) {\r
      FUNLOCKFILE(fp);\r
      return (pos);\r
    }\r
  }\r
  if (fp->_flags & __SRD) {\r
    /*\r
     * Reading.  Any unread characters (including\r
     * those from ungetc) cause the position to be\r
     * smaller than that in the underlying object.\r
     */\r
    pos -= fp->_r;\r
    if (HASUB(fp))\r
      pos -= fp->_ur;\r
  } else if (fp->_flags & __SWR && fp->_p != NULL) {\r
    /*\r
     * Writing.  Any buffered characters cause the\r
     * position to be greater than that in the\r
     * underlying object.\r
     */\r
    pos += fp->_p - fp->_bf._base;\r
  }\r
  FUNLOCKFILE(fp);\r
  return (pos);\r
}\r