kc3-lang/libevent/strlcpy.c

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• Hash : 35375101
  Author :
  Date : 2023-01-27T08:57:33
  

  Fixes some new warnings under clang-15
  
  - -Wdeprecated-non-prototype
  
    /src/le/libevent/strlcpy.c:48:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
    event_strlcpy_(dst, src, siz)
  
  - -Wstrict-prototypes
  
    /src/le/libevent/evthread.c:82:70: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
    struct evthread_condition_callbacks *evthread_get_condition_callbacks()
  
  - -Wunused-but-set-variable
  
    /src/le/libevent/test/regress_buffer.c:130:6: warning: variable 'n' set but not used [-Wunused-but-set-variable]
            int n = 0;
                                                                       ^
  

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• strlcpy.c

• /*	$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $	*/
  
  /*
   * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
   * All rights reserved.
   *
   * 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(LIBC_SCCS) && !defined(lint)
  static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $";
  #endif /* LIBC_SCCS and not lint */
  
  #include "event2/event-config.h"
  #include "evconfig-private.h"
  
  #include <sys/types.h>
  
  #ifndef EVENT__HAVE_STRLCPY
  #include "strlcpy-internal.h"
  
  /*
   * Copy src to string dst of size siz.  At most siz-1 characters
   * will be copied.  Always NUL terminates (unless siz == 0).
   * Returns strlen(src); if retval >= siz, truncation occurred.
   */
  size_t event_strlcpy_(char *dst, const char *src, size_t siz)
  {
  	register char *d = dst;
  	register const char *s = src;
  	register size_t n = siz;
  
  	/* Copy as many bytes as will fit */
  	if (n != 0 && --n != 0) {
  		do {
  			if ((*d++ = *s++) == 0)
  				break;
  		} while (--n != 0);
  	}
  
  	/* Not enough room in dst, add NUL and traverse rest of src */
  	if (n == 0) {
  		if (siz != 0)
  			*d = '\0';		/* NUL-terminate dst */
  		while (*s++)
  			;
  	}
  
  	return (s - src - 1);	/* count does not include NUL */
  }
  #endif
  

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