*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
-/* http://www.opengroup.org/onlinepubs/007904975/utilities/cp.html */
-
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Size reduction.
*/
+//config:config CP
+//config: bool "cp (9.7 kb)"
+//config: default y
+//config: help
+//config: cp is used to copy files and directories.
+//config:
+//config:config FEATURE_CP_LONG_OPTIONS
+//config: bool "Enable long options"
+//config: default y
+//config: depends on CP && LONG_OPTS
+//config: help
+//config: Enable long options.
+//config: Also add support for --parents option.
+//config:
+//config:config FEATURE_CP_REFLINK
+//config: bool "Enable --reflink[=auto]"
+//config: default y
+//config: depends on FEATURE_CP_LONG_OPTIONS
+
+//applet:IF_CP(APPLET_NOEXEC(cp, cp, BB_DIR_BIN, BB_SUID_DROP, cp))
+/* NOEXEC despite cases when it can be a "runner" (cp -r LARGE_DIR NEW_DIR) */
+
+//kbuild:lib-$(CONFIG_CP) += cp.o
+
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/cp.html */
+
+//usage:#define cp_trivial_usage
+//usage: "[OPTIONS] SOURCE... DEST"
+//usage:#define cp_full_usage "\n\n"
+//usage: "Copy SOURCE(s) to DEST\n"
+//usage: "\n -a Same as -dpR"
+//usage: IF_SELINUX(
+//usage: "\n -c Preserve security context"
+//usage: )
+//usage: "\n -R,-r Recurse"
+//usage: "\n -d,-P Preserve symlinks (default if -R)"
+//usage: "\n -L Follow all symlinks"
+//usage: "\n -H Follow symlinks on command line"
+//usage: "\n -p Preserve file attributes if possible"
+//usage: "\n -f Overwrite"
+//usage: "\n -i Prompt before overwrite"
+//usage: "\n -l,-s Create (sym)links"
+//usage: "\n -T Treat DEST as a normal file"
+//usage: "\n -u Copy only newer files"
#include "libbb.h"
#include "libcoreutils/coreutils.h"
int flags;
int status;
enum {
- OPT_a = 1 << (sizeof(FILEUTILS_CP_OPTSTR)-1),
- OPT_r = 1 << (sizeof(FILEUTILS_CP_OPTSTR)),
- OPT_P = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+1),
- OPT_v = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
+ FILEUTILS_CP_OPTNUM = sizeof(FILEUTILS_CP_OPTSTR)-1,
#if ENABLE_FEATURE_CP_LONG_OPTIONS
- OPT_parents = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
+ /*OPT_rmdest = FILEUTILS_RMDEST = 1 << FILEUTILS_CP_OPTNUM */
+ OPT_parents = 1 << (FILEUTILS_CP_OPTNUM+1),
+ OPT_reflink = 1 << (FILEUTILS_CP_OPTNUM+2),
#endif
};
- // Need at least two arguments
- // Soft- and hardlinking doesn't mix
- // -P and -d are the same (-P is POSIX, -d is GNU)
- // -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";
#if ENABLE_FEATURE_CP_LONG_OPTIONS
- applet_long_options =
+# if ENABLE_FEATURE_CP_REFLINK
+ char *reflink = NULL;
+# endif
+ flags = getopt32long(argv, "^"
+ FILEUTILS_CP_OPTSTR
+ "\0"
+ // Need at least two arguments
+ // Soft- and hardlinking doesn't mix
+ // -P and -d are the same (-P is POSIX, -d is GNU)
+ // -r and -R are the same
+ // -R (and therefore -r) turns on -d (coreutils does this)
+ // -a = -pdR
+ "-2:l--s:s--l:Pd:rRd:Rd:apdR",
"archive\0" No_argument "a"
"force\0" No_argument "f"
"interactive\0" No_argument "i"
"no-dereference\0" No_argument "P"
"recursive\0" No_argument "R"
"symbolic-link\0" No_argument "s"
+ "no-target-directory\0" No_argument "T"
"verbose\0" No_argument "v"
- "parents\0" No_argument "\xff"
- ;
+ "update\0" No_argument "u"
+ "remove-destination\0" No_argument "\xff"
+ "parents\0" No_argument "\xfe"
+# if ENABLE_FEATURE_CP_REFLINK
+ "reflink\0" Optional_argument "\xfd"
+ , &reflink
+# endif
+ );
+# if ENABLE_FEATURE_CP_REFLINK
+ BUILD_BUG_ON((int)OPT_reflink != (int)FILEUTILS_REFLINK);
+ if (flags & FILEUTILS_REFLINK) {
+ if (!reflink)
+ flags |= FILEUTILS_REFLINK_ALWAYS;
+ else if (strcmp(reflink, "always") == 0)
+ flags |= FILEUTILS_REFLINK_ALWAYS;
+ else if (strcmp(reflink, "auto") != 0)
+ bb_show_usage();
+ }
+# endif
+#else
+ flags = getopt32(argv, "^"
+ FILEUTILS_CP_OPTSTR
+ "\0"
+ "-2:l--s:s--l:Pd:rRd:Rd:apdR"
+ );
#endif
- // -v (--verbose) is ignored
- flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPv");
/* Options of cp from GNU coreutils 6.10:
* -a, --archive
* -f, --force
* -d same as --no-dereference --preserve=links
* -p same as --preserve=mode,ownership,timestamps
* -c same as --preserve=context
+ * -u, --update
+ * copy only when the SOURCE file is newer than the destination
+ * file or when the destination file is missing
+ * --remove-destination
+ * remove each existing destination file before attempting to open
* --parents
* use full source file name under DIRECTORY
+ * -T, --no-target-directory
+ * treat DEST as a normal file
* NOT SUPPORTED IN BBOX:
* --backup[=CONTROL]
* make a backup of each existing destination file
* preserve attributes (default: mode,ownership,timestamps),
* if possible additional attributes: security context,links,all
* --no-preserve=ATTR_LIST
- * --remove-destination
- * remove each existing destination file before attempting to open
* --sparse=WHEN
* control creation of sparse files
* --strip-trailing-slashes
* override the usual backup suffix
* -t, --target-directory=DIRECTORY
* copy all SOURCE arguments into DIRECTORY
- * -T, --no-target-directory
- * treat DEST as a normal file
- * -u, --update
- * copy only when the SOURCE file is newer than the destination
- * file or when the destination file is missing
* -x, --one-file-system
* stay on this file system
* -Z, --context=CONTEXT
if (d_flags < 0)
return EXIT_FAILURE;
+ if (flags & FILEUTILS_NO_TARGET_DIR) { /* -T */
+ if (!(s_flags & 2) && (d_flags & 2))
+ /* cp -T NOTDIR DIR */
+ bb_error_msg_and_die("'%s' is a directory", last);
+ }
+
#if ENABLE_FEATURE_CP_LONG_OPTIONS
+ //bb_error_msg("flags:%x FILEUTILS_RMDEST:%x OPT_parents:%x",
+ // flags, FILEUTILS_RMDEST, OPT_parents);
if (flags & OPT_parents) {
if (!(d_flags & 2)) {
bb_error_msg_and_die("with --parents, the destination must be a directory");
}
}
+ if (flags & FILEUTILS_RMDEST) {
+ flags |= FILEUTILS_FORCE;
+ }
#endif
/* ...if neither is a directory... */
if (!((s_flags | d_flags) & 2)
/* ...or: recursing, the 1st is a directory, and the 2nd doesn't exist... */
|| ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)
+ || (flags & FILEUTILS_NO_TARGET_DIR)
) {
/* Do a simple copy */
dest = last;
goto DO_COPY; /* NB: argc==2 -> *++argv==last */
}
+ } else if (flags & FILEUTILS_NO_TARGET_DIR) {
+ bb_error_msg_and_die("too many arguments");
}
while (1) {
projects / oweals / busybox.git / blobdiff