Merge branch 'libarchive-upstream' into update-libarchive

Add Utilities/cmlibarchive using upstream libarchive 3.0.0-r3950
snapshot.

1 files changed, 465 insertions, 0 deletions

diff --git a/Utilities/cmlibarchive/libarchive/archive_util.c b/Utilities/cmlibarchive/libarchive/archive_util.c
new file mode 100644
index 0000000..e0852a3
--- /dev/null
+++ b/Utilities/cmlibarchive/libarchive/archive_util.c
@@ -0,0 +1,465 @@
+/*-
+ * Copyright (c) 2009,2010 Michihiro NAKAJIMA
+ * 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: head/lib/libarchive/archive_util.c 201098 2009-12-28 02:58:14Z kientzle $");
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#if defined(HAVE_WINCRYPT_H) && !defined(__CYGWIN__)
+#include <wincrypt.h>
+#endif
+
+#include "archive.h"
+#include "archive_private.h"
+#include "archive_string.h"
+
+/* Generic initialization of 'struct archive' objects. */
+int
+__archive_clean(struct archive *a)
+{
+	archive_string_conversion_free(a);
+	return (ARCHIVE_OK);
+}
+
+int
+archive_version_number(void)
+{
+	return (ARCHIVE_VERSION_NUMBER);
+}
+
+const char *
+archive_version_string(void)
+{
+	return (ARCHIVE_VERSION_STRING);
+}
+
+int
+archive_errno(struct archive *a)
+{
+	return (a->archive_error_number);
+}
+
+const char *
+archive_error_string(struct archive *a)
+{
+
+	if (a->error != NULL  &&  *a->error != '\0')
+		return (a->error);
+	else
+		return (NULL);
+}
+
+int
+archive_file_count(struct archive *a)
+{
+	return (a->file_count);
+}
+
+int
+archive_format(struct archive *a)
+{
+	return (a->archive_format);
+}
+
+const char *
+archive_format_name(struct archive *a)
+{
+	return (a->archive_format_name);
+}
+
+
+int
+archive_compression(struct archive *a)
+{
+	return archive_filter_code(a, 0);
+}
+
+const char *
+archive_compression_name(struct archive *a)
+{
+	return archive_filter_name(a, 0);
+}
+
+
+/*
+ * Return a count of the number of compressed bytes processed.
+ */
+int64_t
+archive_position_compressed(struct archive *a)
+{
+	return archive_filter_bytes(a, -1);
+}
+
+/*
+ * Return a count of the number of uncompressed bytes processed.
+ */
+int64_t
+archive_position_uncompressed(struct archive *a)
+{
+	return archive_filter_bytes(a, 0);
+}
+
+void
+archive_clear_error(struct archive *a)
+{
+	archive_string_empty(&a->error_string);
+	a->error = NULL;
+	a->archive_error_number = 0;
+}
+
+void
+archive_set_error(struct archive *a, int error_number, const char *fmt, ...)
+{
+	va_list ap;
+
+	a->archive_error_number = error_number;
+	if (fmt == NULL) {
+		a->error = NULL;
+		return;
+	}
+
+	archive_string_empty(&(a->error_string));
+	va_start(ap, fmt);
+	archive_string_vsprintf(&(a->error_string), fmt, ap);
+	va_end(ap);
+	a->error = a->error_string.s;
+}
+
+void
+archive_copy_error(struct archive *dest, struct archive *src)
+{
+	dest->archive_error_number = src->archive_error_number;
+
+	archive_string_copy(&dest->error_string, &src->error_string);
+	dest->error = dest->error_string.s;
+}
+
+void
+__archive_errx(int retvalue, const char *msg)
+{
+	static const char *msg1 = "Fatal Internal Error in libarchive: ";
+	size_t s;
+
+	s = write(2, msg1, strlen(msg1));
+	(void)s; /* UNUSED */
+	s = write(2, msg, strlen(msg));
+	(void)s; /* UNUSED */
+	s = write(2, "\n", 1);
+	(void)s; /* UNUSED */
+	exit(retvalue);
+}
+
+/*
+ * Create a temporary file
+ */
+#if defined(_WIN32) && !defined(__CYGWIN__)
+
+/*
+ * Do not use Windows tmpfile() function.
+ * It will make a temporary file under the root directory
+ * and it'll cause permission error if a user who is
+ * non-Administrator creates temporary files.
+ * Also Windows version of mktemp family including _mktemp_s
+ * are not secure.
+ */
+int
+__archive_mktemp(const char *tmpdir)
+{
+	static const wchar_t num[] = {
+		L'0', L'1', L'2', L'3', L'4', L'5', L'6', L'7',
+		L'8', L'9', L'A', L'B', L'C', L'D', L'E', L'F',
+		L'G', L'H', L'I', L'J', L'K', L'L', L'M', L'N',
+		L'O', L'P', L'Q', L'R', L'S', L'T', L'U', L'V',
+		L'W', L'X', L'Y', L'Z', L'a', L'b', L'c', L'd',
+		L'e', L'f', L'g', L'h', L'i', L'j', L'k', L'l',
+		L'm', L'n', L'o', L'p', L'q', L'r', L's', L't',
+		L'u', L'v', L'w', L'x', L'y', L'z'
+	};
+	HCRYPTPROV hProv;
+	struct archive_wstring temp_name;
+	wchar_t *ws;
+	DWORD attr;
+	wchar_t *xp, *ep;
+	int fd;
+
+	hProv = (HCRYPTPROV)NULL;
+	fd = -1;
+	ws = NULL;
+	archive_string_init(&temp_name);
+
+	/* Get a temporary directory. */
+	if (tmpdir == NULL) {
+		size_t l;
+		wchar_t *tmp;
+
+		l = GetTempPathW(0, NULL);
+		if (l == 0) {
+			la_dosmaperr(GetLastError());
+			goto exit_tmpfile;
+		}
+		tmp = malloc(l*sizeof(wchar_t));
+		if (tmp == NULL) {
+			errno = ENOMEM;
+			goto exit_tmpfile;
+		}
+		GetTempPathW(l, tmp);
+		archive_wstrcpy(&temp_name, tmp);
+		free(tmp);
+	} else {
+		archive_wstring_append_from_mbs(&temp_name, tmpdir,
+		    strlen(tmpdir));
+		if (temp_name.s[temp_name.length-1] != L'/')
+			archive_wstrappend_wchar(&temp_name, L'/');
+	}
+
+	/* Check if temp_name is a directory. */
+	attr = GetFileAttributesW(temp_name.s);
+	if (attr == (DWORD)-1) {
+		if (GetLastError() != ERROR_FILE_NOT_FOUND) {
+			la_dosmaperr(GetLastError());
+			goto exit_tmpfile;
+		}
+		ws = __la_win_permissive_name_w(temp_name.s);
+		if (ws == NULL) {
+			errno = EINVAL;
+			goto exit_tmpfile;
+		}
+		attr = GetFileAttributesW(ws);
+		if (attr == (DWORD)-1) {
+			la_dosmaperr(GetLastError());
+			goto exit_tmpfile;
+		}
+	}
+	if (!(attr & FILE_ATTRIBUTE_DIRECTORY)) {
+		errno = ENOTDIR;
+		goto exit_tmpfile;
+	}
+
+	/*
+	 * Create a temporary file.
+	 */
+	archive_wstrcat(&temp_name, L"libarchive_");
+	xp = temp_name.s + archive_strlen(&temp_name);
+	archive_wstrcat(&temp_name, L"XXXXXXXXXX");
+	ep = temp_name.s + archive_strlen(&temp_name);
+
+	if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL,
+		CRYPT_VERIFYCONTEXT)) {
+		la_dosmaperr(GetLastError());
+		goto exit_tmpfile;
+	}
+
+	for (;;) {
+		wchar_t *p;
+		HANDLE h;
+
+		/* Generate a random file name through CryptGenRandom(). */
+		p = xp;
+		if (!CryptGenRandom(hProv, (ep - p)*sizeof(wchar_t), (BYTE*)p)) {
+			la_dosmaperr(GetLastError());
+			goto exit_tmpfile;
+		}
+		for (; p < ep; p++)
+			*p = num[((DWORD)*p) % (sizeof(num)/sizeof(num[0]))];
+
+		free(ws);
+		ws = __la_win_permissive_name_w(temp_name.s);
+		if (ws == NULL) {
+			errno = EINVAL;
+			goto exit_tmpfile;
+		}
+		/* Specifies FILE_FLAG_DELETE_ON_CLOSE flag is to
+		 * delete this temporary file immediately when this
+		 * file closed. */
+		h = CreateFileW(ws,
+		    GENERIC_READ | GENERIC_WRITE | DELETE,
+		    0,/* Not share */
+		    NULL,
+		    CREATE_NEW,/* Create a new file only */
+		    FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE,
+		    NULL);
+		if (h == INVALID_HANDLE_VALUE) {
+			/* The same file already exists. retry with
+			 * a new filename. */
+			if (GetLastError() == ERROR_FILE_EXISTS)
+				continue;
+			/* Otherwise, fail creation temporary file. */
+			la_dosmaperr(GetLastError());
+			goto exit_tmpfile;
+		}
+		fd = _open_osfhandle((intptr_t)h, _O_BINARY | _O_RDWR);
+		if (fd == -1) {
+			CloseHandle(h);
+			goto exit_tmpfile;
+		} else
+			break;/* success! */
+	}
+exit_tmpfile:
+	if (hProv != (HCRYPTPROV)NULL)
+		CryptReleaseContext(hProv, 0);
+	free(ws);
+	archive_wstring_free(&temp_name);
+	return (fd);
+}
+
+#else
+
+static int
+get_tempdir(struct archive_string *temppath)
+{
+	const char *tmp;
+
+	tmp = getenv("TMPDIR");
+	if (tmp == NULL)
+#ifdef _PATH_TMP
+		tmp = _PATH_TMP;
+#else
+                tmp = "/tmp";
+#endif
+	archive_strcpy(temppath, tmp);
+	if (temppath->s[temppath->length-1] != '/')
+		archive_strappend_char(temppath, '/');
+	return (ARCHIVE_OK);
+}
+
+#if defined(HAVE_MKSTEMP)
+
+/*
+ * We can use mkstemp().
+ */
+
+int
+__archive_mktemp(const char *tmpdir)
+{
+	struct archive_string temp_name;
+	int fd = -1;
+
+	archive_string_init(&temp_name);
+	if (tmpdir == NULL) {
+		if (get_tempdir(&temp_name) != ARCHIVE_OK)
+			goto exit_tmpfile;
+	} else {
+		archive_strcpy(&temp_name, tmpdir);
+		if (temp_name.s[temp_name.length-1] != '/')
+			archive_strappend_char(&temp_name, '/');
+	}
+	archive_strcat(&temp_name, "libarchive_XXXXXX");
+	fd = mkstemp(temp_name.s);
+	if (fd < 0)
+		goto exit_tmpfile;
+	unlink(temp_name.s);
+exit_tmpfile:
+	archive_string_free(&temp_name);
+	return (fd);
+}
+
+#else
+
+/*
+ * We use a private routine.
+ */
+
+int
+__archive_mktemp(const char *tmpdir)
+{
+        static const char num[] = {
+		'0', '1', '2', '3', '4', '5', '6', '7',
+		'8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
+		'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
+		'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+		'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
+		'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
+		'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+		'u', 'v', 'w', 'x', 'y', 'z'
+        };
+	struct archive_string temp_name;
+	struct stat st;
+	int fd;
+	char *tp, *ep;
+	unsigned seed;
+
+	fd = -1;
+	archive_string_init(&temp_name);
+	if (tmpdir == NULL) {
+		if (get_tempdir(&temp_name) != ARCHIVE_OK)
+			goto exit_tmpfile;
+	} else
+		archive_strcpy(&temp_name, tmpdir);
+	if (temp_name.s[temp_name.length-1] == '/') {
+		temp_name.s[temp_name.length-1] = '\0';
+		temp_name.length --;
+	}
+	if (stat(temp_name.s, &st) < 0)
+		goto exit_tmpfile;
+	if (!S_ISDIR(st.st_mode)) {
+		errno = ENOTDIR;
+		goto exit_tmpfile;
+	}
+	archive_strcat(&temp_name, "/libarchive_");
+	tp = temp_name.s + archive_strlen(&temp_name);
+	archive_strcat(&temp_name, "XXXXXXXXXX");
+	ep = temp_name.s + archive_strlen(&temp_name);
+
+	fd = open("/dev/random", O_RDONLY);
+	if (fd < 0)
+		seed = time(NULL);
+	else {
+		if (read(fd, &seed, sizeof(seed)) < 0)
+			seed = time(NULL);
+		close(fd);
+	}
+	do {
+		char *p;
+
+		p = tp;
+		while (p < ep)
+			*p++ = num[((unsigned)rand_r(&seed)) % sizeof(num)];
+		fd = open(temp_name.s, O_CREAT | O_EXCL | O_RDWR, 0600);
+	} while (fd < 0 && errno == EEXIST);
+	if (fd < 0)
+		goto exit_tmpfile;
+	unlink(temp_name.s);
+exit_tmpfile:
+	archive_string_free(&temp_name);
+	return (fd);
+}
+
+#endif /* HAVE_MKSTEMP */
+#endif /* !_WIN32 || __CYGWIN__ */