[git commit master] cp: fix -H handling

Denys Vlasenko vda.linux at googlemail.com
Fri Jan 15 21:05:07 UTC 2010


commit: http://git.busybox.net/busybox/commit/?id=a40f0624db4c9490d46f116c4c4635dfa68e070c
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

function                                             old     new   delta
copy_file                                           1495    1518     +23

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 coreutils/cp.c      |   16 ++---
 coreutils/install.c |    2 +-
 include/libbb.h     |   23 +++---
 libbb/copy_file.c   |    4 +-
 testsuite/cp.tests  |  206 +++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 227 insertions(+), 24 deletions(-)
 create mode 100755 testsuite/cp.tests

diff --git a/coreutils/cp.c b/coreutils/cp.c
index 9f6c123..d7c8d91 100644
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -35,10 +35,9 @@ int cp_main(int argc, char **argv)
 		OPT_a = 1 << (sizeof(FILEUTILS_CP_OPTSTR)-1),
 		OPT_r = 1 << (sizeof(FILEUTILS_CP_OPTSTR)),
 		OPT_P = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+1),
-		OPT_H = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
-		OPT_v = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
+		OPT_v = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
 #if ENABLE_FEATURE_CP_LONG_OPTIONS
-		OPT_parents = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+4),
+		OPT_parents = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
 #endif
 	};
 
@@ -48,7 +47,7 @@ int cp_main(int argc, char **argv)
 	// -r and -R are the same
 	// -R (and therefore -r) turns on -d (coreutils does this)
 	// -a = -pdR
-	opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR:HL";
+	opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR";
 #if ENABLE_FEATURE_CP_LONG_OPTIONS
 	applet_long_options =
 		"archive\0"        No_argument "a"
@@ -64,7 +63,7 @@ int cp_main(int argc, char **argv)
 		;
 #endif
 	// -v (--verbose) is ignored
-	flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPHv");
+	flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPv");
 	/* Options of cp from GNU coreutils 6.10:
 	 * -a, --archive
 	 * -f, --force
@@ -113,17 +112,14 @@ int cp_main(int argc, char **argv)
 	 */
 	argc -= optind;
 	argv += optind;
-	flags ^= FILEUTILS_DEREFERENCE; /* the sense of this flag was reversed */
+	/* Reverse this bit. If there is -d, bit is not set: */
+	flags ^= FILEUTILS_DEREFERENCE;
 	/* coreutils 6.9 compat:
 	 * by default, "cp" derefs symlinks (creates regular dest files),
 	 * but "cp -R" does not. We switch off deref if -r or -R (see above).
 	 * However, "cp -RL" must still deref symlinks: */
 	if (flags & FILEUTILS_DEREF_SOFTLINK) /* -L */
 		flags |= FILEUTILS_DEREFERENCE;
-	/* The behavior of -H is *almost* like -L, but not quite, so let's
-	 * just ignore it too for fun. TODO.
-	if (flags & OPT_H) ... // deref command-line params only
-	*/
 
 #if ENABLE_SELINUX
 	if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
diff --git a/coreutils/install.c b/coreutils/install.c
index 2e604be..e968299 100644
--- a/coreutils/install.c
+++ b/coreutils/install.c
@@ -101,7 +101,7 @@ int install_main(int argc, char **argv)
 #if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
 	applet_long_options = install_longopts;
 #endif
-	opt_complementary = "s--d:d--s" IF_SELINUX(":Z--\xff:\xff--Z");
+	opt_complementary = "s--d:d--s" IF_FEATURE_INSTALL_LONG_OPTIONS(IF_SELINUX(":Z--\xff:\xff--Z"));
 	/* -c exists for backwards compatibility, it's needed */
 	/* -v is ignored ("print name of each created directory") */
 	/* -b is ignored ("make a backup of each existing destination file") */
diff --git a/include/libbb.h b/include/libbb.h
index 1159634..9e6ee84 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -262,20 +262,21 @@ extern char *strrstr(const char *haystack, const char *needle) FAST_FUNC;
 extern const char *bb_mode_string(mode_t mode) FAST_FUNC;
 extern int is_directory(const char *name, int followLinks, struct stat *statBuf) FAST_FUNC;
 enum {	/* DO NOT CHANGE THESE VALUES!  cp.c, mv.c, install.c depend on them. */
-	FILEUTILS_PRESERVE_STATUS = 1,
-	FILEUTILS_DEREFERENCE = 2,
-	FILEUTILS_RECUR = 4,
-	FILEUTILS_FORCE = 8,
-	FILEUTILS_INTERACTIVE = 0x10,
-	FILEUTILS_MAKE_HARDLINK = 0x20,
-	FILEUTILS_MAKE_SOFTLINK = 0x40,
-	FILEUTILS_DEREF_SOFTLINK = 0x80,
+	FILEUTILS_PRESERVE_STATUS = 1 << 0, /* -p */
+	FILEUTILS_DEREFERENCE     = 1 << 1, /* !-d */
+	FILEUTILS_RECUR           = 1 << 2, /* -R */
+	FILEUTILS_FORCE           = 1 << 3, /* -f */
+	FILEUTILS_INTERACTIVE     = 1 << 4, /* -i */
+	FILEUTILS_MAKE_HARDLINK   = 1 << 5, /* -l */
+	FILEUTILS_MAKE_SOFTLINK   = 1 << 6, /* -s */
+	FILEUTILS_DEREF_SOFTLINK  = 1 << 7, /* -L */
+	FILEUTILS_DEREFERENCE_L0  = 1 << 8, /* -H */
 #if ENABLE_SELINUX
-	FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x100,
-	FILEUTILS_SET_SECURITY_CONTEXT = 0x200
+	FILEUTILS_PRESERVE_SECURITY_CONTEXT = 1 << 9, /* -c */
+	FILEUTILS_SET_SECURITY_CONTEXT = 1 << 10,
 #endif
 };
-#define FILEUTILS_CP_OPTSTR "pdRfilsL" IF_SELINUX("c")
+#define FILEUTILS_CP_OPTSTR "pdRfilsLH" IF_SELINUX("c")
 extern int remove_file(const char *path, int flags) FAST_FUNC;
 /* NB: without FILEUTILS_RECUR in flags, it will basically "cat"
  * the source, not copy (unless "source" is a directory).
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 893b52e..6c64fab 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -83,7 +83,7 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 	signed char ovr;
 
 /* Inverse of cp -d ("cp without -d") */
-#define FLAGS_DEREF (flags & FILEUTILS_DEREFERENCE)
+#define FLAGS_DEREF (flags & (FILEUTILS_DEREFERENCE + FILEUTILS_DEREFERENCE_L0))
 
 	if ((FLAGS_DEREF ? stat : lstat)(source, &source_stat) < 0) {
 		/* This may be a dangling symlink.
@@ -194,7 +194,7 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
 			if (new_source == NULL)
 				continue;
 			new_dest = concat_path_file(dest, d->d_name);
-			if (copy_file(new_source, new_dest, flags) < 0)
+			if (copy_file(new_source, new_dest, flags & ~FILEUTILS_DEREFERENCE_L0) < 0)
 				retval = -1;
 			free(new_source);
 			free(new_dest);
diff --git a/testsuite/cp.tests b/testsuite/cp.tests
new file mode 100755
index 0000000..75a7dcb
--- /dev/null
+++ b/testsuite/cp.tests
@@ -0,0 +1,206 @@
+#!/bin/sh
+# Copyright 2010 by Denys Vlasenko
+# Licensed under GPL v2, see file LICENSE for details.
+
+. ./testing.sh
+
+# Opening quote in "omitting directory 'dir'" message:
+sq='`'  # GNU cp: `
+sq="'"  # bbox cp: '
+
+rm -rf cp.testdir >/dev/null
+
+mkdir cp.testdir
+mkdir cp.testdir/dir
+> cp.testdir/dir/file
+ln -s file cp.testdir/dir/file_symlink
+
+> cp.testdir/file
+ln -s file cp.testdir/file_symlink
+ln -s dir cp.testdir/dir_symlink
+
+
+# testing "test name" "command" "expected result" "file input" "stdin"
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp" '\
+cd cp.testdir || exit 1; cp * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -e cp.testdir2/dir              || echo BAD: dir
+test ! -e cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+' "\
+cp: omitting directory ${sq}dir'
+cp: omitting directory ${sq}dir_symlink'
+1
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -d" '\
+cd cp.testdir || exit 1; cp -d * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test   -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -e cp.testdir2/dir              || echo BAD: dir
+test   -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+' "\
+cp: omitting directory ${sq}dir'
+1
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -P" '\
+cd cp.testdir || exit 1; cp -P * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test   -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -e cp.testdir2/dir              || echo BAD: dir
+test   -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+' "\
+cp: omitting directory ${sq}dir'
+1
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -L" '\
+cd cp.testdir || exit 1; cp -L * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -e cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+' "\
+cp: omitting directory ${sq}dir'
+cp: omitting directory ${sq}dir_symlink'
+1
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -H" '\
+cd cp.testdir || exit 1; cp -H * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -e cp.testdir2/dir              || echo BAD: dir
+test ! -e cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+' "\
+cp: omitting directory ${sq}dir'
+cp: omitting directory ${sq}dir_symlink'
+1
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -R" '\
+cd cp.testdir || exit 1; cp -R * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test   -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test   -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test   -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -Rd" '\
+cd cp.testdir || exit 1; cp -Rd * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test   -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test   -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test   -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -RP" '\
+cd cp.testdir || exit 1; cp -RP * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test   -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test   -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test   -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -RL" '\
+cd cp.testdir || exit 1; cp -RL * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test ! -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+# GNU coreutils 7.2 says:
+# cp: will not create hard link `../cp.testdir2/dir_symlink' to directory `../cp.testdir2/dir'
+test x"$SKIP_KNOWN_BUGS" = x"" && \
+testing "cp -RH" '\
+cd cp.testdir || exit 1; cp -RH * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test   -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+# GNU coreutils 7.2 says:
+# cp: will not create hard link `../cp.testdir2/dir_symlink' to directory `../cp.testdir2/dir'
+test x"$SKIP_KNOWN_BUGS" = x"" && \
+testing "cp -RHP" '\
+cd cp.testdir || exit 1; cp -RHP * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test   -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+testing "cp -RHL" '\
+cd cp.testdir || exit 1; cp -RHL * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test ! -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+rm -rf cp.testdir2 >/dev/null && mkdir cp.testdir2 || exit 1
+# Wow! "cp -RLH" is not the same as "cp -RHL" (prev test)!
+# GNU coreutils 7.2 says:
+# cp: will not create hard link `../cp.testdir2/dir_symlink' to directory `../cp.testdir2/dir'
+test x"$SKIP_KNOWN_BUGS" = x"" && \
+testing "cp -RLH" '\
+cd cp.testdir || exit 1; cp -RLH * ../cp.testdir2 2>&1; echo $?; cd .. || exit 1
+test ! -L cp.testdir2/file             || echo BAD: file
+test ! -L cp.testdir2/file_symlink     || echo BAD: file_symlink
+test ! -L cp.testdir2/dir              || echo BAD: dir
+test ! -L cp.testdir2/dir_symlink      || echo BAD: dir_symlink
+test ! -L cp.testdir2/dir/file         || echo BAD: dir/file
+test ! -L cp.testdir2/dir/file_symlink || echo BAD: dir/file_symlink
+' "\
+0
+" "" ""
+
+
+# Clean up
+rm -rf cp.testdir cp.testdir2 2>/dev/null
+
+exit $FAILCOUNT
-- 
1.6.3.3



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