BSD 4.4 Lite bin Sources

1 files changed, 300 insertions, 0 deletions

diff --git a/bin/mv/mv.c b/bin/mv/mv.c
new file mode 100644
index 0000000..01fbc90
--- /dev/null
+++ b/bin/mv/mv.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ken Smith of The State University of New York at Buffalo.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1989, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mv.c	8.2 (Berkeley) 4/2/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "pathnames.h"
+
+int fflg, iflg;
+
+int	copy __P((char *, char *));
+int	do_move __P((char *, char *));
+int	fastcopy __P((char *, char *, struct stat *));
+void	usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	register int baselen, len, rval;
+	register char *p, *endp;
+	struct stat sb;
+	int ch;
+	char path[MAXPATHLEN + 1];
+
+	while ((ch = getopt(argc, argv, "-if")) != EOF)
+		switch (ch) {
+		case 'i':
+			iflg = 1;
+			break;
+		case 'f':
+			fflg = 1;
+			break;
+		case '-':		/* Undocumented; for compatibility. */
+			goto endarg;
+		case '?':
+		default:
+			usage();
+		}
+endarg:	argc -= optind;
+	argv += optind;
+
+	if (argc < 2)
+		usage();
+
+	/*
+	 * If the stat on the target fails or the target isn't a directory,
+	 * try the move.  More than 2 arguments is an error in this case.
+	 */
+	if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
+		if (argc > 2)
+			usage();
+		exit(do_move(argv[0], argv[1]));
+	}
+
+	/* It's a directory, move each file into it. */
+	(void)strcpy(path, argv[argc - 1]);
+	baselen = strlen(path);
+	endp = &path[baselen];
+	*endp++ = '/';
+	++baselen;
+	for (rval = 0; --argc; ++argv) {
+		if ((p = strrchr(*argv, '/')) == NULL)
+			p = *argv;
+		else
+			++p;
+		if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
+			warnx("%s: destination pathname too long", *argv);
+			rval = 1;
+		} else {
+			memmove(endp, p, len + 1);
+			if (do_move(*argv, path))
+				rval = 1;
+		}
+	}
+	exit(rval);
+}
+
+int
+do_move(from, to)
+	char *from, *to;
+{
+	struct stat sb;
+	int ask, ch;
+	char modep[15];
+
+	/*
+	 * Check access.  If interactive and file exists, ask user if it
+	 * should be replaced.  Otherwise if file exists but isn't writable
+	 * make sure the user wants to clobber it.
+	 */
+	if (!fflg && !access(to, F_OK)) {
+		ask = 0;
+		if (iflg) {
+			(void)fprintf(stderr, "overwrite %s? ", to);
+			ask = 1;
+		} else if (access(to, W_OK) && !stat(to, &sb)) {
+			strmode(sb.st_mode, modep);
+			(void)fprintf(stderr, "override %s%s%s/%s for %s? ",
+			    modep + 1, modep[9] == ' ' ? "" : " ",
+			    user_from_uid(sb.st_uid, 0),
+			    group_from_gid(sb.st_gid, 0), to);
+			ask = 1;
+		}
+		if (ask) {
+			if ((ch = getchar()) != EOF && ch != '\n')
+				while (getchar() != '\n');
+			if (ch != 'y')
+				return (0);
+		}
+	}
+	if (!rename(from, to))
+		return (0);
+
+	if (errno != EXDEV) {
+		warn("rename %s to %s", from, to);
+		return (1);
+	}
+
+	/*
+	 * If rename fails because we're trying to cross devices, and
+	 * it's a regular file, do the copy internally; otherwise, use
+	 * cp and rm.
+	 */
+	if (stat(from, &sb)) {
+		warn("%s", from);
+		return (1);
+	}
+	return (S_ISREG(sb.st_mode) ?
+	    fastcopy(from, to, &sb) : copy(from, to));
+}
+
+int
+fastcopy(from, to, sbp)
+	char *from, *to;
+	struct stat *sbp;
+{
+	struct timeval tval[2];
+	static u_int blen;
+	static char *bp;
+	register int nread, from_fd, to_fd;
+
+	if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
+		warn("%s", from);
+		return (1);
+	}
+	if ((to_fd =
+	    open(to, O_CREAT | O_TRUNC | O_WRONLY, sbp->st_mode)) < 0) {
+		warn("%s", to);
+		(void)close(from_fd);
+		return (1);
+	}
+	if (!blen && !(bp = malloc(blen = sbp->st_blksize))) {
+		warn(NULL);
+		return (1);
+	}
+	while ((nread = read(from_fd, bp, blen)) > 0)
+		if (write(to_fd, bp, nread) != nread) {
+			warn("%s", to);
+			goto err;
+		}
+	if (nread < 0) {
+		warn("%s", from);
+err:		if (unlink(to))
+			warn("%s: remove", to);
+		(void)close(from_fd);
+		(void)close(to_fd);
+		return (1);
+	}
+	(void)close(from_fd);
+
+	if (fchown(to_fd, sbp->st_uid, sbp->st_gid))
+		warn("%s: set owner/group", to);
+	if (fchmod(to_fd, sbp->st_mode))
+		warn("%s: set mode", to);
+
+	tval[0].tv_sec = sbp->st_atime;
+	tval[1].tv_sec = sbp->st_mtime;
+	tval[0].tv_usec = tval[1].tv_usec = 0;
+	if (utimes(to, tval))
+		warn("%s: set times", to);
+
+	if (close(to_fd)) {
+		warn("%s", to);
+		return (1);
+	}
+
+	if (unlink(from)) {
+		warn("%s: remove", from);
+		return (1);
+	}
+	return (0);
+}
+
+int
+copy(from, to)
+	char *from, *to;
+{
+	int pid, status;
+
+	if ((pid = vfork()) == 0) {
+		execl(_PATH_CP, "mv", "-PRp", from, to, NULL);
+		warn("%s", _PATH_CP);
+		_exit(1);
+	}
+	if (waitpid(pid, &status, 0) == -1) {
+		warn("%s: waitpid", _PATH_CP);
+		return (1);
+	}
+	if (!WIFEXITED(status)) {
+		warn("%s: did not terminate normally", _PATH_CP);
+		return (1);
+	}
+	if (WEXITSTATUS(status)) {
+		warn("%s: terminated with %d (non-zero) status",
+		    _PATH_CP, WEXITSTATUS(status));
+		return (1);
+	}
+	if (!(pid = vfork())) {
+		execl(_PATH_RM, "mv", "-rf", from, NULL);
+		warn("%s", _PATH_RM);
+		_exit(1);
+	}
+	if (waitpid(pid, &status, 0) == -1) {
+		warn("%s: waitpid", _PATH_RM);
+		return (1);
+	}
+	if (!WIFEXITED(status)) {
+		warn("%s: did not terminate normally", _PATH_RM);
+		return (1);
+	}
+	if (WEXITSTATUS(status)) {
+		warn("%s: terminated with %d (non-zero) status",
+		    _PATH_RM, WEXITSTATUS(status));
+		return (1);
+	}
+	return (0);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+"usage: mv [-if] src target;\n   or: mv [-if] src1 ... srcN directory\n");
+	exit(1);
+}