/*
 * Copyright (c) 2004, Nate Nielsen
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions of source code must retain the above
 *       copyright notice, this list of conditions and the
 *       following disclaimer.
 *     * 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.
 *     * The names of contributors to this software may not be
 *       used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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
 * COPYRIGHT OWNER OR CONTRIBUTORS 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.
 *
 *
 * CONTRIBUTORS
 *  Nate Nielsen <nielsen@memberwebs.com>
 *
 *
 * PORTIONS FROM OPENBSD: -------------------------------------------------
 *
 * 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.
 */



#include "usuals.h"
#include "compat.h"

#include <ctype.h>
#include <stdlib.h>

#ifndef HAVE_REALLOCF

void* reallocf(void* ptr, size_t size)
{
	void* ret = realloc(ptr, size);

	if(!ret && size)
		free(ptr);

	return ret;
}

#endif

#ifndef HAVE_STRLWR
char* strlwr(char* s)
{
    char* t = s;
    while(*t)
    {
        *t = tolower(*t);
        t++;
    }
    return s;
}
#endif

#ifndef HAVE_STRUPR
char* strupr(char* s)
{
    char* t = s;
    while(*t)
    {
        *t = toupper(*t);
        t++;
    }
    return s;
}
#endif

#ifndef HAVE_STRLCPY

size_t strlcpy(char* dst, const char* src, size_t siz)
{
	char* d = dst;
    const char* s = src;
    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

#ifndef HAVE_STRLCAT

size_t strlcat(char* dst, const char* src, size_t siz)
{
    char* d = dst;
    const char* s = src;
    size_t n = siz;
    size_t dlen;

    /* Find the end of dst and adjust bytes left but don't go past end */
    while(n-- != 0 && *d != '\0')
     	d++;
    dlen = d - dst;
    n = siz - dlen;

    if(n == 0)
        return dlen + strlen(s);
    while(*s != '\0')
    {
        if(n != 1)
        {
            *d++ = *s;
            n--;
        }

        s++;
    }

    *d = '\0';

    return dlen + (s - src);       /* count does not include NUL */
}

#endif