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/*
* Copyright (c) 2022, Alejandro Colomar <alx.manpages@gmail.com>
*
* 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 copyright holders or contributors 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
* HOLDERS 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.
*/
#ident "$Id$"
#include "prototypes.h"
/*
* ARGUMENTS
* dst Pointer to the first byte of the destination buffer.
*
* src Pointer to the first byte of the source string.
*
* end Pointer to one-past-the-end of the 'dst' buffer.
*
* DESCRIPTION
* This function reads the whole 'str' string, until a NUL
* character is found, and copies it (or the part of it that fits)
* into 'dst', guaranteeing that the resulting string is
* NUL-terminated.
*
* RETURN VALUE
* This function returns a pointer to the terminating NUL byte in
* the 'dst' string.
*
* CAVEATS
* This function silently truncates the source string if it
* doesn't fit in the 'dst'. This is desirable in many cases, and
* simplifies usage. If this is not wanted, other functions, such
* as strlcpy(3bsd) and strlcat(3bsd) may be preferred.
*
* This function requires that the input string is NUL-terminated.
* If this cannot be guaranteed, other functions should be used,
* such as strscpy().
*
* If the 'dst' buffer is a zero-sized array, that is, if
* 'dst == end', the behavior is undefined.
*/
char *
stpecpy(char *dst, const char *restrict src, const char *end)
{
for (/* void */; *src != '\0'; src++) {
if (dst < end)
*dst++ = *src;
}
if (dst < end)
*dst = '\0';
return dst;
}
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