Diff of /trunk/mkinitrd-magellan/busybox/coreutils/cp.c

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	revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC	revision 984 by niro, Sun May 30 11:32:42 2010 UTC
#	Line 20	Line 20
20
21	/* This is a NOEXEC applet. Be very careful! */	/* This is a NOEXEC applet. Be very careful! */
22
23	int cp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;	int cp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
24	int cp_main(int argc, char **argv)	int cp_main(int argc, char **argv)
25	{	{
#	Line 31  int cp_main(int argc, char **argv)	Line 30  int cp_main(int argc, char **argv)
30	int s_flags;	int s_flags;
31	int d_flags;	int d_flags;
32	int flags;	int flags;
33	int status = 0;	int status;
34	enum {	enum {
35	OPT_a = 1 << (sizeof(FILEUTILS_CP_OPTSTR)-1),	OPT_a = 1 << (sizeof(FILEUTILS_CP_OPTSTR)-1),
36	OPT_r = 1 << (sizeof(FILEUTILS_CP_OPTSTR)),	OPT_r = 1 << (sizeof(FILEUTILS_CP_OPTSTR)),
37	OPT_P = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+1),	OPT_P = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+1),
38	OPT_H = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),	OPT_v = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
39		#if ENABLE_FEATURE_CP_LONG_OPTIONS
40		OPT_parents = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
41		#endif
42	};	};
43
44	// Need at least two arguments	// Need at least two arguments
#	Line 45  int cp_main(int argc, char **argv)	Line 47  int cp_main(int argc, char **argv)
47	// -r and -R are the same	// -r and -R are the same
48	// -R (and therefore -r) turns on -d (coreutils does this)	// -R (and therefore -r) turns on -d (coreutils does this)
49	// -a = -pdR	// -a = -pdR
50	opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR:HL";	opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR";
51	flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPH");	#if ENABLE_FEATURE_CP_LONG_OPTIONS
52		applet_long_options =
53		"archive\0"        No_argument "a"
54		"force\0"          No_argument "f"
55		"interactive\0"    No_argument "i"
56		"link\0"           No_argument "l"
57		"dereference\0"    No_argument "L"
58		"no-dereference\0" No_argument "P"
59		"recursive\0"      No_argument "R"
60		"symbolic-link\0"  No_argument "s"
61		"verbose\0"        No_argument "v"
62		"parents\0"        No_argument "\xff"
63		;
64		#endif
65		// -v (--verbose) is ignored
66		flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPv");
67		/* Options of cp from GNU coreutils 6.10:
68		* -a, --archive
69		* -f, --force
70		* -i, --interactive
71		* -l, --link
72		* -L, --dereference
73		* -P, --no-dereference
74		* -R, -r, --recursive
75		* -s, --symbolic-link
76		* -v, --verbose
77		* -H follow command-line symbolic links in SOURCE
78		* -d same as --no-dereference --preserve=links
79		* -p same as --preserve=mode,ownership,timestamps
80		* -c same as --preserve=context
81		* --parents
82		* use full source file name under DIRECTORY
83		* NOT SUPPORTED IN BBOX:
84		* --backup[=CONTROL]
85		* make a backup of each existing destination file
86		* -b like --backup but does not accept an argument
87		* --copy-contents
88		* copy contents of special files when recursive
89		* --preserve[=ATTR_LIST]
90		* preserve attributes (default: mode,ownership,timestamps),
91		* if possible additional attributes: security context,links,all
92		* --no-preserve=ATTR_LIST
93		* --remove-destination
94		* remove  each existing destination file before attempting to open
95		* --sparse=WHEN
96		* control creation of sparse files
97		* --strip-trailing-slashes
98		* remove any trailing slashes from each SOURCE argument
99		* -S, --suffix=SUFFIX
100		* override the usual backup suffix
101		* -t, --target-directory=DIRECTORY
102		* copy all SOURCE arguments into DIRECTORY
103		* -T, --no-target-directory
104		* treat DEST as a normal file
105		* -u, --update
106		* copy only when the SOURCE file is newer than the destination
107		* file or when the destination file is missing
108		* -x, --one-file-system
109		* stay on this file system
110		* -Z, --context=CONTEXT
111		* (SELinux) set SELinux security context of copy to CONTEXT
112		*/
113	argc -= optind;	argc -= optind;
114	argv += optind;	argv += optind;
115	flags ^= FILEUTILS_DEREFERENCE; /* the sense of this flag was reversed */	/* Reverse this bit. If there is -d, bit is not set: */
116		flags ^= FILEUTILS_DEREFERENCE;
117	/* coreutils 6.9 compat:	/* coreutils 6.9 compat:
118	* by default, "cp" derefs symlinks (creates regular dest files),	* by default, "cp" derefs symlinks (creates regular dest files),
119	* but "cp -R" does not. We switch off deref if -r or -R (see above).	* but "cp -R" does not. We switch off deref if -r or -R (see above).
120	* However, "cp -RL" must still deref symlinks: */	* However, "cp -RL" must still deref symlinks: */
121	if (flags & FILEUTILS_DEREF_SOFTLINK) /* -L */	if (flags & FILEUTILS_DEREF_SOFTLINK) /* -L */
122	flags |= FILEUTILS_DEREFERENCE;	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
	*/
123
124	#if ENABLE_SELINUX	#if ENABLE_SELINUX
125	if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {	if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
#	Line 67  int cp_main(int argc, char **argv)	Line 127  int cp_main(int argc, char **argv)
127	}	}
128	#endif	#endif
129
130		status = EXIT_SUCCESS;
131	last = argv[argc - 1];	last = argv[argc - 1];
132	/* If there are only two arguments and...  */	/* If there are only two arguments and...  */
133	if (argc == 2) {	if (argc == 2) {
134	s_flags = cp_mv_stat2(*argv, &source_stat,	s_flags = cp_mv_stat2(*argv, &source_stat,
135	(flags & FILEUTILS_DEREFERENCE) ? stat : lstat);	(flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
136	if (s_flags < 0)	if (s_flags < 0)
137	return EXIT_FAILURE;	return EXIT_FAILURE;
138	d_flags = cp_mv_stat(last, &dest_stat);	d_flags = cp_mv_stat(last, &dest_stat);
139	if (d_flags < 0)	if (d_flags < 0)
140	return EXIT_FAILURE;	return EXIT_FAILURE;
141
142	/* ...if neither is a directory or...  */	#if ENABLE_FEATURE_CP_LONG_OPTIONS
143	if ( !((s_flags | d_flags) & 2) ||	if (flags & OPT_parents) {
144	/* ...recursing, the 1st is a directory, and the 2nd doesn't exist... */	if (!(d_flags & 2)) {
145	((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)	bb_error_msg_and_die("with --parents, the destination must be a directory");
146		}
147		}
148		#endif
149
150		/* ...if neither is a directory...  */
151		if (!((s_flags | d_flags) & 2)
152		/* ...or: recursing, the 1st is a directory, and the 2nd doesn't exist... */
153		|| ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)
154	) {	) {
155	/* ...do a simple copy.  */	/* Do a simple copy */
156	dest = last;	dest = last;
157	goto DO_COPY; /* NB: argc==2 -> *++argv==last */	goto DO_COPY; /* NB: argc==2 -> *++argv==last */
158	}	}
159	}	}
160
161	while (1) {	while (1) {
162		#if ENABLE_FEATURE_CP_LONG_OPTIONS
163		if (flags & OPT_parents) {
164		char *dest_dup;
165		char *dest_dir;
166		dest = concat_path_file(last, *argv);
167		dest_dup = xstrdup(dest);
168		dest_dir = dirname(dest_dup);
169		if (bb_make_directory(dest_dir, -1, FILEUTILS_RECUR)) {
170		return EXIT_FAILURE;
171		}
172		free(dest_dup);
173		goto DO_COPY;
174		}
175		#endif
176	dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));	dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));
177	DO_COPY:	DO_COPY:
178	if (copy_file(*argv, dest, flags) < 0) {	if (copy_file(*argv, dest, flags) < 0) {
179	status = 1;	status = EXIT_FAILURE;
180	}	}
181	if (*++argv == last) {	if (*++argv == last) {
182	/* possibly leaking dest... */	/* possibly leaking dest... */
183	break;	break;
184	}	}
185		/* don't move up: dest may be == last and not malloced! */
186	free((void*)dest);	free((void*)dest);
187	}	}
188

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Legend: Removed from v.983   changed lines   Added in v.984