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inspstring.cpp

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/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

/* $Core */

#include "inspstring.h"

/*
 * 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.
 */
 
#ifndef HAS_STRLCPY
CoreExport size_t strlcat(char *dst, const char *src, size_t siz)
{
        char *d = dst;
        const char *s = src;
        size_t n = siz, dlen;

        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 */
}

CoreExport 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

CoreExport int charlcat(char* x,char y,int z)
{
        char* x__n = x;
        int v = 0;

        while(*x__n++)
                v++;

        if (v < z - 1)
        {
                *--x__n = y;
                *++x__n = 0;
        }

        return v;
}

CoreExport bool charremove(char* mp, char remove)
{
        char* mptr = mp;
        bool shift_down = false;

        while (*mptr)
        {
                if (*mptr == remove)
                shift_down = true;

                if (shift_down)
                        *mptr = *(mptr+1);

                mptr++;
        }

        return shift_down;
}