2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
190 lines
5 KiB
C
190 lines
5 KiB
C
/* $NetBSD: shquote.c,v 1.8 2006/03/19 02:33:02 christos Exp $ */
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/*
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* Copyright (c) 2001 Christopher G. Demetriou
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the
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* NetBSD Project. See http://www.NetBSD.org/ for
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* information about NetBSD.
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* 4. 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 BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: shquote.c,v 1.8 2006/03/19 02:33:02 christos Exp $");
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#endif /* LIBC_SCCS and not lint */
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/*
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* Define SHQUOTE_USE_MULTIBYTE if you want shquote() to handle multibyte
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* characters using mbrtowc().
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*
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* Please DO NOT rip this #ifdef out of the code. It's also here to help
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* portability.
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*/
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#undef SHQUOTE_USE_MULTIBYTE
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#include "namespace.h"
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#include <stdlib.h>
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#include <string.h>
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#ifdef SHQUOTE_USE_MULTIBYTE
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#include <limits.h>
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#include <stdio.h>
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#include <wchar.h>
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#endif
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#ifdef __weak_alias
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__weak_alias(shquote,_shquote)
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#endif
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/*
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* shquote():
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*
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* Requotes arguments so that they'll be interpreted properly by the
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* shell (/bin/sh).
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*
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* Wraps single quotes around the string, and replaces single quotes
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* in the string with the sequence:
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* '\''
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*
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* Returns the number of characters required to hold the resulting quoted
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* argument.
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*
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* The buffer supplied is filled in and NUL-terminated. If 'bufsize'
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* indicates that the buffer is too short to hold the output string, the
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* first (bufsize - 1) bytes of quoted argument are filled in and the
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* buffer is NUL-terminated.
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*
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* Changes could be made to optimize the length of strings output by this
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* function:
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*
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* * if there are no metacharacters or whitespace in the input,
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* the output could be the input string.
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*/
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#ifdef SHQUOTE_USE_MULTIBYTE
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#define XLATE_OUTCH(x) wcrtomb(outch, (x), &mbso)
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#define XLATE_INCH() \
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do { \
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n = mbrtowc(&c, arg, MB_CUR_MAX, &mbsi); \
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} while (/*LINTED const cond*/0)
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#else
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#define XLATE_OUTCH(x) (outch[0] = (x), 1)
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#define XLATE_INCH() \
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do { \
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n = ((c = *arg) != '\0') ? 1 : 0; \
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} while (/*LINTED const cond*/0)
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#endif
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#define PUT(x) \
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do { \
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outchlen = XLATE_OUTCH(x); \
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if (outchlen == (size_t)-1) \
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goto bad; \
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rv += outchlen; \
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if (bufsize != 0) { \
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if (bufsize < outchlen || \
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(bufsize == outchlen && \
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outch[outchlen - 1] != '\0')) { \
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*buf = '\0'; \
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bufsize = 0; \
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} else { \
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memcpy(buf, outch, outchlen); \
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buf += outchlen; \
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bufsize -= outchlen; \
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} \
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} \
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} while (/*LINTED const cond*/0)
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size_t
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shquote(const char *arg, char *buf, size_t bufsize)
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{
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#ifdef SHQUOTE_USE_MULTIBYTE
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char outch[MB_LEN_MAX];
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mbstate_t mbsi, mbso;
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wchar_t c, lastc;
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size_t outchlen;
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#else
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char outch[1];
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char c, lastc;
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size_t outchlen;
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#endif
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size_t rv;
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int n;
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rv = 0;
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lastc = 0;
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#ifdef SHQUOTE_USE_MULTIBYTE
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memset(&mbsi, 0, sizeof mbsi);
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memset(&mbso, 0, sizeof mbso);
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#endif
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if (*arg != '\'')
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PUT('\'');
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for (;;) {
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XLATE_INCH();
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if (n <= 0)
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break;
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arg += n;
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lastc = c;
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if (c == '\'') {
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if (rv != 0)
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PUT('\'');
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PUT('\\');
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PUT('\'');
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for (;;) {
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XLATE_INCH();
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if (n <= 0 || c != '\'')
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break;
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PUT('\\');
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PUT('\'');
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arg += n;
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}
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if (n > 0)
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PUT('\'');
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} else
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PUT(c);
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}
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if (lastc != '\'')
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PUT('\'');
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/* Put multibyte or NUL terminator, but don't count the NUL. */
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PUT('\0');
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rv--;
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return rv;
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bad:
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/* A multibyte character encoding or decoding error occurred. */
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return (size_t)-1;
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}
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