diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_check_magic.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_check_magic.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_check_magic.c b/Utilities/cmlibarchive/libarchive/archive_check_magic.c deleted file mode 100644 index e9dbe51..0000000 --- a/Utilities/cmlibarchive/libarchive/archive_check_magic.c +++ /dev/null @@ -1,135 +0,0 @@ -/*- - * Copyright (c) 2003-2007 Tim Kientzle - * All rights reserved. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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. - */ - -#include "archive_platform.h" -__FBSDID("$FreeBSD: src/lib/libarchive/archive_check_magic.c,v 1.9 2008/12/06 05:52:01 kientzle Exp $"); - -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#include <stdio.h> -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#if defined(_WIN32) && !defined(__CYGWIN__) -#include <windows.h> -#include <winbase.h> -#endif - -#include "archive_private.h" - -static void -errmsg(const char *m) -{ - size_t s = strlen(m); - ssize_t written; - - while (s > 0) { - written = write(2, m, strlen(m)); - if (written <= 0) - return; - m += written; - s -= written; - } -} - -static void -diediedie(void) -{ -#if defined(_WIN32) && !defined(__CYGWIN__) && defined(_DEBUG) - /* Cause a breakpoint exception */ - DebugBreak(); -#endif - *(char *)1 = 1; /* Deliberately segfault and force a coredump. */ - _exit(1); /* If that didn't work, just exit with an error. */ -} - -static const char * -state_name(unsigned s) -{ - switch (s) { - case ARCHIVE_STATE_NEW: return ("new"); - case ARCHIVE_STATE_HEADER: return ("header"); - case ARCHIVE_STATE_DATA: return ("data"); - case ARCHIVE_STATE_EOF: return ("eof"); - case ARCHIVE_STATE_CLOSED: return ("closed"); - case ARCHIVE_STATE_FATAL: return ("fatal"); - default: return ("??"); - } -} - - -static void -write_all_states(unsigned int states) -{ - unsigned int lowbit; - - /* A trick for computing the lowest set bit. */ - while ((lowbit = states & (1 + ~states)) != 0) { - states &= ~lowbit; /* Clear the low bit. */ - errmsg(state_name(lowbit)); - if (states != 0) - errmsg("/"); - } -} - -/* - * Check magic value and current state; bail if it isn't valid. - * - * This is designed to catch serious programming errors that violate - * the libarchive API. - */ -void -__archive_check_magic(struct archive *a, unsigned int magic, - unsigned int state, const char *function) -{ - if (a->magic != magic) { - errmsg("INTERNAL ERROR: Function "); - errmsg(function); - errmsg(" invoked with invalid struct archive structure.\n"); - diediedie(); - } - - if (state == ARCHIVE_STATE_ANY) - return; - - if ((a->state & state) == 0) { - errmsg("INTERNAL ERROR: Function '"); - errmsg(function); - errmsg("' invoked with archive structure in state '"); - write_all_states(a->state); - errmsg("', should be in state '"); - write_all_states(state); - errmsg("'\n"); - diediedie(); - } -} |