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83f0977c0c
be part of amiga.lib. While comparable functionality is available in rexxsyslib.library V45, the new stubs might be helpful during porting. Care must be taken since these functions don't work exactly like the originals. - Integrated strlcpy() and strlcat() which are intended to be safer replacements for strncpy() and strncat(). - The program's task priority is now configurable through an external variable '__priority'. - The process name to be used when detaching can be configured through the new '__process_name' variable. - The minimum required operating system version can be configured through the new '__minimum_os_lib_version' variable; a matching error message can be provided through the new '__minimum_os_lib_error' variable. - The default console window specification can be overriden through the new '__stdio_window_specification' variable. - The socket initialization code did not set up a reference to the 'h_errno' variable correctly. This had the effect of making name and address resolution errors trash the 'errno' variable instead and leaving 'h_errno' always set to 0. Fixed. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14771 87f5fb63-7c3d-0410-a384-fd976d0f7a62
141 lines
4.6 KiB
C
141 lines
4.6 KiB
C
/*
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* $Id: string_strlcat.c,v 1.1 2004-11-14 11:06:27 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2004 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/****************************************************************************/
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/*
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/****************************************************************************/
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#ifndef _STDLIB_NULL_POINTER_CHECK_H
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#include "stdlib_null_pointer_check.h"
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#endif /* _STDLIB_NULL_POINTER_CHECK_H */
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/****************************************************************************/
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#ifndef _STRING_HEADERS_H
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#include "string_headers.h"
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#endif /* _STRING_HEADERS_H */
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/****************************************************************************/
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/*
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* Appends src to string dst of size siz (unlike strncat, siz is the
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* full size of dst, not space left). At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
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* Returns strlen(src) + MIN(siz, strlen(initial dst)).
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* If retval >= siz, truncation occurred.
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*/
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size_t
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strlcat(char *dst, const char *src, size_t siz)
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{
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register char *d = dst;
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register const char *s = src;
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register size_t n = siz;
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size_t result;
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size_t dlen;
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assert( src != NULL && (siz == 0 || dst != NULL) );
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#if defined(CHECK_FOR_NULL_POINTERS)
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{
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if(src == NULL || (siz != 0 && dst == NULL))
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{
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errno = EFAULT;
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result = 0;
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goto out;
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}
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}
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#endif /* CHECK_FOR_NULL_POINTERS */
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/* Find the end of dst and adjust bytes left but don't go past end */
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while(n-- != 0 && (*d) != '\0')
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d++;
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dlen = d - dst;
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n = siz - dlen;
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if (n == 0)
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{
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result = dlen + strlen(s);
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}
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else
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{
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while((*s) != '\0')
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{
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if(n != 1)
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{
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(*d++) = (*s);
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n--;
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}
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s++;
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}
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(*d) = '\0';
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result = dlen + (s - src); /* count does not include NUL */
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}
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out:
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return(result);
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}
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