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Date:      Sun, 8 Mar 2009 06:07:35 +0000 (UTC)
From:      Tim Kientzle <kientzle@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r189523 - in head/usr.bin/tar: . test
Message-ID:  <200903080607.n2867ZH3074271@svn.freebsd.org>

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Author: kientzle
Date: Sun Mar  8 06:07:35 2009
New Revision: 189523
URL: http://svn.freebsd.org/changeset/base/189523

Log:
  Merge r709,r710 from libarchive.googlecode.com:  More work on
  Windows support.

Added:
  head/usr.bin/tar/test/test_patterns_4.tar.uu   (contents, props changed)
Modified:
  head/usr.bin/tar/test/test_patterns.c
  head/usr.bin/tar/util.c

Modified: head/usr.bin/tar/test/test_patterns.c
==============================================================================
--- head/usr.bin/tar/test/test_patterns.c	Sun Mar  8 06:03:28 2009	(r189522)
+++ head/usr.bin/tar/test/test_patterns.c	Sun Mar  8 06:07:35 2009	(r189523)
@@ -1,4 +1,5 @@
 /*-
+ * Copyright (c) 2009 Michihiro NAKAJIMA
  * Copyright (c) 2003-2007 Tim Kientzle
  * All rights reserved.
  *
@@ -30,6 +31,7 @@ DEFINE_TEST(test_patterns)
 	int fd, r;
 	const char *reffile2 = "test_patterns_2.tar";
 	const char *reffile3 = "test_patterns_3.tar";
+	const char *reffile4 = "test_patterns_4.tar";
 	const char *p;
 
 	/*
@@ -101,4 +103,81 @@ DEFINE_TEST(test_patterns)
 	assertEmptyFile("tar3d.out");
 	assertEmptyFile("tar3d.err");
 	assertEqualInt(0, access("tmp/foo/baz/bar", F_OK));
+
+	/*
+	 * Test 4 archive has some entries starting with windows drive letters
+	 * such as 'c:\', '//./c:/' or '//?/c:/'.
+	 */
+	extract_reference_file(reffile4);
+
+	r = systemf("%s xf %s -C tmp > tar4.out 2> tar4.err",
+	    testprog, reffile4);
+	assert(r != 0);
+	assertEmptyFile("tar4.out");
+	assertNonEmptyFile("tar4.err");
+
+	for (r = 1; r <= 54; r++) {
+		char file_a[] = "tmp/fileXX";
+		char file_b1[] = "tmp/server/share/fileXX";
+		char file_b2[] = "tmp/server\\share\\fileXX";
+		char file_c[] = "tmp/../fileXX";
+		char *filex;
+		int xsize;
+
+		switch (r) {
+		case 15: case 18:
+			/*
+			 * Including server and share names.
+			 * //?/UNC/server/share/file15
+			 * //?/unc/server/share/file18
+			 */
+			filex = file_b1;
+			xsize = sizeof(file_b1);
+			break;
+		case 35: case 38: case 52:
+			/*
+			 * Including server and share names.
+			 * \\?\UNC\server\share\file35
+			 * \\?\unc\server\share\file38
+			 * \/?/uNc/server\share\file52
+			 */
+			filex = file_b2;
+			xsize = sizeof(file_b2);
+			break;
+		default:
+			filex = file_a;
+			xsize = sizeof(file_a);
+			break;
+		}
+		filex[xsize-3] = '0' + r / 10;
+		filex[xsize-2] = '0' + r % 10;
+		switch (r) {
+		case 5: case 6: case 17: case 20: case 25:
+		case 26: case 37: case 40: case 43: case 54:
+			/*
+			 * Not extracted patterns.
+			 * D:../file05
+			 * c:../../file06
+			 * //?/UNC/../file17
+			 * //?/unc/../file20
+			 * z:..\file25
+			 * c:..\..\file26
+			 * \\?\UNC\..\file37
+			 * \\?\unc\..\file40
+			 * c:../..\file43
+			 * \/?\UnC\../file54
+			 */
+			assertEqualInt(-1, access(filex, F_OK));
+			filex = file_c;
+			xsize = sizeof(file_c);
+			filex[xsize-3] = '0' + r / 10;
+			filex[xsize-2] = '0' + r % 10;
+			assertEqualInt(-1, access(filex, F_OK));
+			break;
+		default:
+			/* Extracted patterns. */
+			assertEqualInt(0, access(filex, F_OK));
+			break;
+		}
+	}
 }

Added: head/usr.bin/tar/test/test_patterns_4.tar.uu
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/usr.bin/tar/test/test_patterns_4.tar.uu	Sun Mar  8 06:07:35 2009	(r189523)
@@ -0,0 +1,642 @@
+$FreeBSD$
+begin 644 test_patterns_4.tar
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+M`````````````````````````````````````````````````#`P,#`P,"``
+M,#`P,#`P(```````````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M`````````````````````````````````````````````````````%Q<+R]C
+M.EPO+UQ<9FEL934Q````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M```````P,#`V-#0@`#`P,3<U,2``,#`Q-S4Q(``P,#`P,#`P,#`P,"`Q,3$U
+M,#8W-#8T,B`P,3$W,S$`(#``````````````````````````````````````
+M````````````````````````````````````````````````````````````
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+M````````````````````````````````````````````````````````````
+M````````````,#`P,#`P(``P,#`P,#`@````````````````````````````
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+M````````````````````````````````````````````````````````````
+M`````````````````````````````#`P,#8T-"``,#`Q-S4Q(``P,#$W-3$@
+M`#`P,#`P,#`P,#`P(#$Q,34P-C<T-C0R(#`Q-#$T-0`@,```````````````
+M````````````````````````````````````````````````````````````
+M``````````````````````````````````````````````````````````!U
+M<W1A<@`P,```````````````````````````````````````````````````
+M```````````````````````````````````P,#`P,#`@`#`P,#`P,"``````
+M````````````````````````````````````````````````````````````
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+M````````````````````````````````````````````````````````````
+M````````````````````````````````````````````````````,#`P-C0T
+M(``P,#$W-3$@`#`P,3<U,2``,#`P,#`P,#`P,#`@,3$Q-3`V-S0V-#(@,#$Q
+M-#<V`"`P````````````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M`````````````````````'5S=&%R`#`P````````````````````````````
+M`````````````````````````````````````````````````````````#`P
+M,#`P,"``,#`P,#`P(```````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M`%PO/UQ5;D-<+BXO9FEL934T````````````````````````````````````
+M````````````````````````````````````````````````````````````
+M```````````````P,#`V-#0@`#`P,3<U,2``,#`Q-S4Q(``P,#`P,#`P,#`P
+M,"`Q,3$U,#8W-#8T,B`P,3$W,3(`(#``````````````````````````````
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+M````````````````````````````````````````````````````````````
+M````````````````````,#`P,#`P(``P,#`P,#`@````````````````````
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+'````````````
+`
+end

Modified: head/usr.bin/tar/util.c
==============================================================================
--- head/usr.bin/tar/util.c	Sun Mar  8 06:03:28 2009	(r189522)
+++ head/usr.bin/tar/util.c	Sun Mar  8 06:07:35 2009	(r189523)
@@ -513,45 +513,72 @@ edit_pathname(struct bsdtar *bsdtar, str
 		}
 	}
 
-	/* Strip redundant leading '/' characters. */
-	while (name[0] == '/' && name[1] == '/')
-		name++;
-
 	/* By default, don't write or restore absolute pathnames. */
 	if (!bsdtar->option_absolute_paths) {
-		/* Strip Windows drive letters. */
-		if (((name[0] >= 'A' && name[0] <= 'Z')
-			|| (name[0] >= 'a' && name[0] <= 'z'))
-		    && name[1] == ':'
-		    && (name[2] == '/' || name[2] == '\\'))
+		const char *rp, *p = name;
+		int slashonly = 1;
+
+		/* Remove leading "//./" or "//?/" or "//?/UNC/"
+		 * (absolute path prefixes used by Windows API) */
+		if ((p[0] == '/' || p[0] == '\\') &&
+		    (p[1] == '/' || p[1] == '\\') &&
+		    (p[2] == '.' || p[2] == '?') &&
+		    (p[3] == '/' || p[3] == '\\'))
 		{
-			/* Generate a warning the first time this happens. */
-			if (!bsdtar->warned_lead_slash) {
-				bsdtar_warnc(bsdtar, 0,
-				    "Removing leading drive letter from member names");
-				bsdtar->warned_lead_slash = 1;
-			}
-			name += 3;
-			while (*name == '/' || *name == '\\')
-				++name;
-			/* Special case: Stripping everything yields ".". */
-			if (*name == '\0')
-				name = ".";
+			if (p[2] == '?' &&
+			    (p[4] == 'U' || p[4] == 'u') &&
+			    (p[5] == 'N' || p[5] == 'n') &&
+			    (p[6] == 'C' || p[6] == 'c') &&
+			    (p[7] == '/' || p[7] == '\\'))
+				p += 8;
+			else
+				p += 4;
+			slashonly = 0;
 		}
+		do {
+			rp = p;
+			/* Remove leading drive letter from archives created
+			 * on Windows. */
+			if (((p[0] >= 'a' && p[0] <= 'z') ||
+			     (p[0] >= 'A' && p[0] <= 'Z')) &&
+				 p[1] == ':') {
+				p += 2;
+				slashonly = 0;
+			}
+			/* Remove leading "/../", "//", etc. */
+			while (p[0] == '/' || p[0] == '\\') {
+				if (p[1] == '.' && p[2] == '.' &&
+					(p[3] == '/' || p[3] == '\\')) {
+					p += 3; /* Remove "/..", leave "/"
+							 * for next pass. */
+					slashonly = 0;
+				} else
+					p += 1; /* Remove "/". */
+			}
+		} while (rp != p);
 
-		/* Strip leading '/'. */
-		if (name[0] == '/') {
+		if (p != name && !bsdtar->warned_lead_slash) {
 			/* Generate a warning the first time this happens. */
-			if (!bsdtar->warned_lead_slash) {
+			if (slashonly)
 				bsdtar_warnc(bsdtar, 0,
-				    "Removing leading '/' from member names");
-				bsdtar->warned_lead_slash = 1;
-			}
-			name++;
-			/* Special case: Stripping everything yields ".". */
-			if (*name == '\0')
-				name = ".";
+				    "Removing leading '%c' from member names",
+				    name[0]);
+			else
+				bsdtar_warnc(bsdtar, 0,
+				    "Removing leading drive letter from "
+				    "member names");
+			bsdtar->warned_lead_slash = 1;
 		}
+
+		/* Special case: Stripping everything yields ".". */
+		if (*p == '\0')
+			name = ".";
+		else
+			name = p;
+	} else {
+		/* Strip redundant leading '/' characters. */
+		while (name[0] == '/' && name[1] == '/')
+			name++;
 	}
 
 	/* Safely replace name in archive_entry. */



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