kc3-lang/libbsd/src/fgetln.c

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• Hash : 74ae34e7
  Author :
  Date : 2009-05-15T21:26:09
  

  Fix buffer leaks in fgetln Cache the size and the buffer allocated by getline as static variables.

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• src/fgetln.c

• /*
   * Copyright (C) 2005 Hector Garcia Alvarez
   * Copyright (C) 2005, 2008, 2009 Guillem Jover
   *
   * 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.
   */
  
  #include <stdio.h>
  #include <sys/cdefs.h>
  #include <sys/types.h>
  #include <string.h>
  
  #ifdef __GLIBC__
  char *
  fgetln (FILE *stream, size_t *len)
  {
  	static char *line = NULL;
  	static size_t line_len = 0;
  	ssize_t nread;
  
  	nread = getline(&line, &line_len, stream);
  	if (nread == -1) {
  		*len = 0;
  		return NULL;
  	} else {
  		*len = (size_t)nread;
  		return line;
  	}
  }
  #endif
  
  

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