Return to Strlcat.h CVS log

Up to [Pegasus] / pegasus / src / Executor

BUG#: 6512
TITLE: Add unit tests for Privilege Separation
DESCRIPTION: Add Executor unit test cases.

/*
//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//%/////////////////////////////////////////////////////////////////////////////
*/

#ifndef _Executor_Strlcat_h
#define _Executor_Strlcat_h

#include <stdlib.h>

/*
**==============================================================================
**
** Strlcat()
**
**     This is an original implementation of the strlcat() function as described
**     by Todd C. Miller in his popular security paper entitled "strlcpy and
**     strlcat - consistent, safe, string copy and concatenation".
**
**     Note that this implementation favors readability over efficiency. More
**     efficient implementations are possible but would be too complicated
**     to verify in a security audit.
**
**==============================================================================
*/

static size_t Strlcat(char* dest, const char* src, size_t size)
{
    size_t i;
    size_t j;

    /* Find dest null terminator. */

    for (i = 0; i < size && dest[i]; i++)
        ;

    /* If no-null terminator found, return size. */

    if (i == size)
    {
        int j = 0;
        while (src[j])
        {
            j++;
        }
        return size + j;
    }

    /* Copy src characters to dest. */

    for (j = 0; src[j] && i + 1 < size; i++, j++)
        dest[i] = src[j];

    /* Null terminate the destination.  We are guaranteed that size is
     * non-zero, because the (i == size) condition above is always true
     * when size is zero.
     */

    dest[i] = '\0';

    while (src[j])
    {
        j++;
        i++;
    }

    return i;
}

#endif /* _Executor_Strlcat_h */