kc3-lang/libbsd/include/bsd/stdio.h

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• Hash : f41fdcf1
  Author :
  Date : 2013-10-21T05:07:56
  

  Add funopen() function
  
  This is a wrapper over the glibc fopencookie() function.
  
  We diverge from the FreeBSD, OpenBSD and DragonFlyBSD declarations,
  because seekfn() there wrongly uses fpos_t, assuming it's an integral
  type, and any code using that on a system where fpos_t is a struct
  (such as GNU-based systems or NetBSD) will fail to build. In which case,
  as the code has to be modified anyway, we might just as well use the
  correct declaration.
  

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• include/bsd/stdio.h

• /*
   * Copyright © 2004-2005, 2009, 2011-2013 Guillem Jover <guillem@hadrons.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #if defined(__need_FILE) || defined(__need___FILE)
  #define LIBBSD_STDIO_H_SKIP
  #endif
  
  #ifdef LIBBSD_OVERLAY
  #include_next <stdio.h>
  #else
  #include <stdio.h>
  #endif
  
  #ifndef LIBBSD_STDIO_H_SKIP
  #ifndef LIBBSD_STDIO_H
  #define LIBBSD_STDIO_H
  
  #include <sys/cdefs.h>
  #include <sys/types.h>
  
  __BEGIN_DECLS
  const char *fmtcheck(const char *, const char *);
  
  char *fgetln(FILE *fp, size_t *lenp);
  
  /*
   * Note: We diverge from the FreeBSD, OpenBSD and DragonFlyBSD declarations,
   * because seekfn() there wrongly uses fpos_t, assuming it's an integral
   * type, and any code using that on a system where fpos_t is a struct
   * (such as GNU-based systems or NetBSD) will fail to build. In which case,
   * as the code has to be modified anyway, we might just as well use the
   * correct declaration here.
   */
  FILE *funopen(const void *cookie,
                int (*readfn)(void *cookie, char *buf, int size),
                int (*writefn)(void *cookie, const char *buf, int size),
                off_t (*seekfn)(void *cookie, off_t offset, int whence),
                int (*closefn)(void *cookie));
  
  #define fropen(cookie, fn) funopen(cookie, fn, NULL, NULL, NULL)
  #define fwopen(cookie, fn) funopen(cookie, NULL, fn, NULL, NULL)
  
  int fpurge(FILE *fp);
  __END_DECLS
  
  #endif
  #endif
  #undef LIBBSD_STDIO_H_SKIP
  

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