예제 #1
0
파일: cp.c 프로젝트: AlickHill/Lantern
int cp_main(int argc, char **argv)
{
	struct stat source_stat;
	struct stat dest_stat;
	const char *last;
	const char *dest;
	int s_flags;
	int d_flags;
	int flags;
	int status = 0;
	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_H = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
		OPT_L = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
	};

	// Soft- and hardlinking don't mix
	// -P and -d are the same (-P is POSIX, -d is GNU)
	// -r and -R are the same
	// -a = -pdR
	opt_complementary = "?:l--s:s--l:Pd:rR:apdR";
	flags = getopt32(argc, argv, FILEUTILS_CP_OPTSTR "arPHL");
	/* Default behavior of cp is to dereference, so we don't have to do
	 * anything special when we are given -L.
	 * The behavior of -H is *almost* like -L, but not quite, so let's
	 * just ignore it too for fun.
	if (flags & OPT_L) ...
	if (flags & OPT_H) ... // deref command-line params only
	*/

#if ENABLE_SELINUX
	if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
		selinux_or_die();
	}
#endif

	flags ^= FILEUTILS_DEREFERENCE;		/* The sense of this flag was reversed. */

	if (optind + 2 > argc) {
		bb_show_usage();
	}

	last = argv[argc - 1];
	argv += optind;

	/* If there are only two arguments and...  */
	if (optind + 2 == argc) {
		s_flags = cp_mv_stat2(*argv, &source_stat,
				      (flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
		if (s_flags < 0)
			return EXIT_FAILURE;
		d_flags = cp_mv_stat(last, &dest_stat);
		if (d_flags < 0)
			return EXIT_FAILURE;

		/* ...if neither is a directory or...  */
		if ( !((s_flags | d_flags) & 2) ||
			/* ...recursing, the 1st is a directory, and the 2nd doesn't exist... */
			((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)
		) {
			/* ...do a simple copy.  */
			dest = xstrdup(last);
			goto DO_COPY; /* Note: optind+2==argc implies argv[1]==last below. */
		}
	}

	do {
		dest = concat_path_file(last, bb_get_last_path_component(*argv));
 DO_COPY:
		if (copy_file(*argv, dest, flags) < 0) {
			status = 1;
		}
		free((void*)dest);
	} while (*++argv != last);

	return status;
}
예제 #2
0
int cp_main(int argc, char **argv)
{
    struct stat source_stat;
    struct stat dest_stat;
    const char *last;
    const char *dest;
    int s_flags;
    int d_flags;
    int flags;
    int status = 0;
    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_H = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+2),
        OPT_L = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
    };

    // Need at least two arguments
    // Soft- and hardlinking don't mix
    // -P and -d are the same (-P is POSIX, -d is GNU)
    // -r and -R are the same
    // -R (and therefore -r) switches on -d (coreutils does this)
    // -a = -pdR
    opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR";
    flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPHL");
    argc -= optind;
    argv += optind;
    flags ^= FILEUTILS_DEREFERENCE;		/* The sense of this flag was reversed. */
    /* Default behavior of cp is to dereference, so we don't have to do
     * anything special when we are given -L.
     * The behavior of -H is *almost* like -L, but not quite, so let's
     * just ignore it too for fun.
    if (flags & OPT_L) ...
    if (flags & OPT_H) ... // deref command-line params only
    */

#if ENABLE_SELINUX
    if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
        selinux_or_die();
    }
#endif

    last = argv[argc - 1];
    /* If there are only two arguments and...  */
    if (argc == 2) {
        s_flags = cp_mv_stat2(*argv, &source_stat,
                              (flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
        if (s_flags < 0)
            return EXIT_FAILURE;
        d_flags = cp_mv_stat(last, &dest_stat);
        if (d_flags < 0)
            return EXIT_FAILURE;

        /* ...if neither is a directory or...  */
        if ( !((s_flags | d_flags) & 2) ||
                /* ...recursing, the 1st is a directory, and the 2nd doesn't exist... */
                ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)
           ) {
            /* ...do a simple copy.  */
            dest = last;
            goto DO_COPY; /* NB: argc==2 -> *++argv==last */
        }
    }

    while (1) {
        dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));
DO_COPY:
        if (copy_file(*argv, dest, flags) < 0) {
            status = 1;
        }
        if (*++argv == last) {
            /* possibly leaking dest... */
            break;
        }
        free((void*)dest);
    }

    /* Exit. We are NOEXEC, not NOFORK. We do exit at the end of main() */
    return status;
}
예제 #3
0
파일: cp.c 프로젝트: AlexShiLucky/busybox
int cp_main(int argc, char **argv)
{
	struct stat source_stat;
	struct stat dest_stat;
	const char *last;
	const char *dest;
	int s_flags;
	int d_flags;
	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),
#if ENABLE_FEATURE_CP_LONG_OPTIONS
		OPT_parents = 1 << (sizeof(FILEUTILS_CP_OPTSTR)+3),
#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 =
		"archive\0"        No_argument "a"
		"force\0"          No_argument "f"
		"interactive\0"    No_argument "i"
		"link\0"           No_argument "l"
		"dereference\0"    No_argument "L"
		"no-dereference\0" No_argument "P"
		"recursive\0"      No_argument "R"
		"symbolic-link\0"  No_argument "s"
		"verbose\0"        No_argument "v"
		"parents\0"        No_argument "\xff"
		;
#endif
	flags = getopt32(argv, FILEUTILS_CP_OPTSTR "arPv");
	/* Options of cp from GNU coreutils 6.10:
	 * -a, --archive
	 * -f, --force
	 * -i, --interactive
	 * -l, --link
	 * -L, --dereference
	 * -P, --no-dereference
	 * -R, -r, --recursive
	 * -s, --symbolic-link
	 * -v, --verbose
	 * -H	follow command-line symbolic links in SOURCE
	 * -d	same as --no-dereference --preserve=links
	 * -p	same as --preserve=mode,ownership,timestamps
	 * -c	same as --preserve=context
	 * --parents
	 *	use full source file name under DIRECTORY
	 * NOT SUPPORTED IN BBOX:
	 * --backup[=CONTROL]
	 *	make a backup of each existing destination file
	 * -b	like --backup but does not accept an argument
	 * --copy-contents
	 *	copy contents of special files when recursive
	 * --preserve[=ATTR_LIST]
	 *	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
	 *	remove any trailing slashes from each SOURCE argument
	 * -S, --suffix=SUFFIX
	 *	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
	 *	(SELinux) set SELinux security context of copy to CONTEXT
	 */
	argc -= optind;
	argv += optind;
	/* 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;

#if ENABLE_SELINUX
	if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
		selinux_or_die();
	}
#endif

	status = EXIT_SUCCESS;
	last = argv[argc - 1];
	/* If there are only two arguments and...  */
	if (argc == 2) {
		s_flags = cp_mv_stat2(*argv, &source_stat,
				(flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
		if (s_flags < 0)
			return EXIT_FAILURE;
		d_flags = cp_mv_stat(last, &dest_stat);
		if (d_flags < 0)
			return EXIT_FAILURE;

#if ENABLE_FEATURE_CP_LONG_OPTIONS
		if (flags & OPT_parents) {
			if (!(d_flags & 2)) {
				bb_error_msg_and_die("with --parents, the destination must be a directory");
			}
		}
#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)
		) {
			/* Do a simple copy */
			dest = last;
			goto DO_COPY; /* NB: argc==2 -> *++argv==last */
		}
	}

	while (1) {
#if ENABLE_FEATURE_CP_LONG_OPTIONS
		if (flags & OPT_parents) {
			char *dest_dup;
			char *dest_dir;
			dest = concat_path_file(last, *argv);
			dest_dup = xstrdup(dest);
			dest_dir = dirname(dest_dup);
			if (bb_make_directory(dest_dir, -1, FILEUTILS_RECUR)) {
				return EXIT_FAILURE;
			}
			free(dest_dup);
			goto DO_COPY;
		}
#endif
		dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));
 DO_COPY:
		if (copy_file(*argv, dest, flags) < 0) {
			status = EXIT_FAILURE;
		}
		if (*++argv == last) {
			/* possibly leaking dest... */
			break;
		}
		/* don't move up: dest may be == last and not malloced! */
		free((void*)dest);
	}

	/* Exit. We are NOEXEC, not NOFORK. We do exit at the end of main() */
	return status;
}
예제 #4
0
파일: mv.c 프로젝트: AlexShiLucky/busybox
int mv_main(int argc, char **argv)
{
	struct stat dest_stat;
	const char *last;
	const char *dest;
	unsigned flags;
	int dest_exists;
	int status = 0;
	int copy_flag = 0;

#if ENABLE_FEATURE_MV_LONG_OPTIONS
	applet_long_options = mv_longopts;
#endif
	/* Need at least two arguments.
	 * If more than one of -f, -i, -n is specified , only the final one
	 * takes effect (it unsets previous options).
	 */
	opt_complementary = "-2:f-in:i-fn:n-fi";
	flags = getopt32(argv, "finv");
	argc -= optind;
	argv += optind;
	last = argv[argc - 1];

	if (argc == 2) {
		dest_exists = cp_mv_stat(last, &dest_stat);
		if (dest_exists < 0) {
			return EXIT_FAILURE;
		}

		if (!(dest_exists & 2)) { /* last is not a directory */
			dest = last;
			goto DO_MOVE;
		}
	}

	do {
		dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));
		dest_exists = cp_mv_stat(dest, &dest_stat);
		if (dest_exists < 0) {
			goto RET_1;
		}

 DO_MOVE:
		if (dest_exists) {
			if (flags & OPT_NOCLOBBER)
				goto RET_0;
			if (!(flags & OPT_FORCE)
			 && ((access(dest, W_OK) < 0 && isatty(0))
			    || (flags & OPT_INTERACTIVE))
			) {
				if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
					goto RET_1;  /* Ouch! fprintf failed! */
				}
				if (!bb_ask_confirmation()) {
					goto RET_0;
				}
			}
		}

		if (rename(*argv, dest) < 0) {
			struct stat source_stat;
			int source_exists;

			if (errno != EXDEV
			 || (source_exists = cp_mv_stat2(*argv, &source_stat, lstat)) < 1
			) {
				bb_perror_msg("can't rename '%s'", *argv);
			} else {
				static const char fmt[] ALIGN1 =
					"can't overwrite %sdirectory with %sdirectory";

				if (dest_exists) {
					if (dest_exists == 3) {
						if (source_exists != 3) {
							bb_error_msg(fmt, "", "non-");
							goto RET_1;
						}
					} else {
						if (source_exists == 3) {
							bb_error_msg(fmt, "non-", "");
							goto RET_1;
						}
					}
					if (unlink(dest) < 0) {
						bb_perror_msg("can't remove '%s'", dest);
						goto RET_1;
					}
				}
				/* FILEUTILS_RECUR also prevents nasties like
				 * "read from device and write contents to dst"
				 * instead of "create same device node" */
				copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
#if ENABLE_SELINUX
				copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
#endif
				if ((copy_file(*argv, dest, copy_flag) >= 0)
				 && (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)
				) {
					goto RET_0;
				}
			}
 RET_1:
			status = 1;
		}
 RET_0:
		if (flags & OPT_VERBOSE) {
			printf("'%s' -> '%s'\n", *argv, dest);
		}
		if (dest != last) {
			free((void *) dest);
		}
	} while (*++argv != last);

	return status;
}
예제 #5
0
extern int mv_main(int argc, char **argv)
{
	struct stat source_stat;
	struct stat dest_stat;
	const char *last;
	const char *dest;
	int dest_exists;
	int source_exists;
	unsigned long flags;
	int status = 0;

	bb_applet_long_options = mv_long_options;
	bb_opt_complementaly = "f-i:i-f";
	flags = bb_getopt_ulflags(argc, argv, mv_getopt_short_option);

	if (optind + 2 > argc)
		bb_show_usage();

	last = argv[argc - 1];
	argv += optind;

	if (optind + 2 == argc) {
		if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) {
			return 1;
		}

		if (!(dest_exists & 2)) {
			dest = last;
			goto DO_MOVE;
		}
	}
	
	do {
		dest = concat_path_file(last, bb_get_last_path_component(*argv));

		if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) {
			goto RET_1;
		}

	DO_MOVE:
		
		if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
			((access(dest, W_OK) < 0 && isatty(0)) ||
			 (flags & OPT_FILEUTILS_INTERACTIVE))) {
				 if (fprintf(stderr, "mv: overwrite `%s'? ", dest) < 0) {
					 goto RET_1;	/* Ouch! fprintf failed! */
				 }
				 if (!bb_ask_confirmation())
					 goto RET_0;
		 }
		
		if (rename(*argv, dest) < 0) {
			if (errno != EXDEV) {
				bb_perror_msg("unable to rename `%s'", *argv);
			} else if ((source_exists = cp_mv_stat(*argv, &source_stat)) >= 0) {
				if (dest_exists) {
					if (dest_exists & 2) {
						if (!(source_exists & 2)) {
							bb_error_msg(fmt, "", "non-");
							goto RET_1;
						}
					} else {
						if (source_exists & 2) {
							bb_error_msg(fmt, "non-", "");
							goto RET_1;
						}
					}
					if (unlink(dest) < 0) {
						bb_perror_msg("cannot remove `%s'", dest);
						goto RET_1;
					}
				}
				
				if ((copy_file(*argv, dest,
							   FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0)
					&& (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)
					) {
					goto RET_0;
				}
				
			}
		RET_1:
			status = 1;
		}

	RET_0:
		if (dest != last) {
			free((void *) dest);
		}
		
	} while (*++argv != last);
	
	exit(status);
}
예제 #6
0
파일: mv.c 프로젝트: Predator-SD/Tarixy
int mv_main(int argc, char **argv)
{
	struct stat dest_stat;
	const char *last;
	const char *dest;
	unsigned long flags;
	int dest_exists;
	int status = 0;
	int copy_flag = 0;

#if ENABLE_FEATURE_MV_LONG_OPTIONS
	applet_long_options = mv_longopts;
#endif
	opt_complementary = "f-i:i-f";
	flags = getopt32(argv, "fi");
	if (optind + 2 > argc) {
		bb_show_usage();
	}

	last = argv[argc - 1];
	argv += optind;

	if (optind + 2 == argc) {
		dest_exists = cp_mv_stat(last, &dest_stat);
		if (dest_exists < 0) {
			return 1;
		}

		if (!(dest_exists & 2)) {
			dest = last;
			goto DO_MOVE;
		}
	}

	do {
		dest = concat_path_file(last, bb_get_last_path_component(*argv));
		dest_exists = cp_mv_stat(dest, &dest_stat);
		if (dest_exists < 0) {
			goto RET_1;
		}

DO_MOVE:

		if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
			((access(dest, W_OK) < 0 && isatty(0)) ||
			(flags & OPT_FILEUTILS_INTERACTIVE))) {
			if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
				goto RET_1;	/* Ouch! fprintf failed! */
			}
			if (!bb_ask_confirmation()) {
				goto RET_0;
			}
		}
		if (rename(*argv, dest) < 0) {
			struct stat source_stat;
			int source_exists;

			if (errno != EXDEV ||
				(source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
				bb_perror_msg("cannot rename '%s'", *argv);
			} else {
				if (dest_exists) {
					if (dest_exists == 3) {
						if (source_exists != 3) {
							bb_error_msg(fmt, "", "non-");
							goto RET_1;
						}
					} else {
						if (source_exists == 3) {
							bb_error_msg(fmt, "non-", "");
							goto RET_1;
						}
					}
					if (unlink(dest) < 0) {
						bb_perror_msg("cannot remove '%s'", dest);
						goto RET_1;
					}
				}
				copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
#if ENABLE_SELINUX
				copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
#endif
				if ((copy_file(*argv, dest, copy_flag) >= 0) &&
					(remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
					goto RET_0;
				}
			}
RET_1:
			status = 1;
		}
RET_0:
		if (dest != last) {
			free((void *) dest);
		}
	} while (*++argv != last);

	return status;
}