e2421f7667
corrections to the Windows support to reconcile differences between Visual Studio and Cygwin. Includes parts of revisions 757, 774, 787, 815, 817, 819, 820, 844, and 886. Of particular note, r886 overhauled the UTF-8/Unicode conversions to work correctly regardless of whether the local system uses 16-bit or 32-bit wchar_t. (I assume that systems with 16-bit wchar_t use UTF-16 and those with 32-bit wchar_t use UCS-4.) This revision also added a preference for wcrtomb() (which is thread-safe) on platforms that support it.
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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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#include "archive_platform.h"
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__FBSDID("$FreeBSD$");
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include <windows.h>
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#include <winbase.h>
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#endif
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#include "archive_private.h"
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static void
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errmsg(const char *m)
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{
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write(2, m, strlen(m));
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}
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static void
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diediedie(void)
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{
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#if defined(_WIN32) && !defined(__CYGWIN__) && defined(_DEBUG)
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/* Cause a breakpoint exception */
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DebugBreak();
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#endif
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*(char *)0 = 1; /* Deliberately segfault and force a coredump. */
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_exit(1); /* If that didn't work, just exit with an error. */
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}
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static const char *
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state_name(unsigned s)
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{
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switch (s) {
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case ARCHIVE_STATE_NEW: return ("new");
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case ARCHIVE_STATE_HEADER: return ("header");
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case ARCHIVE_STATE_DATA: return ("data");
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case ARCHIVE_STATE_EOF: return ("eof");
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case ARCHIVE_STATE_CLOSED: return ("closed");
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case ARCHIVE_STATE_FATAL: return ("fatal");
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default: return ("??");
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}
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}
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static void
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write_all_states(unsigned int states)
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{
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unsigned int lowbit;
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/* A trick for computing the lowest set bit. */
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while ((lowbit = states & (-states)) != 0) {
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states &= ~lowbit; /* Clear the low bit. */
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errmsg(state_name(lowbit));
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if (states != 0)
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errmsg("/");
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}
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}
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/*
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* Check magic value and current state; bail if it isn't valid.
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*
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* This is designed to catch serious programming errors that violate
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* the libarchive API.
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*/
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void
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__archive_check_magic(struct archive *a, unsigned int magic,
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unsigned int state, const char *function)
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{
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if (a->magic != magic) {
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errmsg("INTERNAL ERROR: Function ");
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errmsg(function);
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errmsg(" invoked with invalid struct archive structure.\n");
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diediedie();
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}
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if (state == ARCHIVE_STATE_ANY)
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return;
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if ((a->state & state) == 0) {
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errmsg("INTERNAL ERROR: Function '");
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errmsg(function);
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errmsg("' invoked with archive structure in state '");
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write_all_states(a->state);
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errmsg("', should be in state '");
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write_all_states(state);
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errmsg("'\n");
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diediedie();
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}
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}
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