 @@ -1,420 +1,420 @@
-/* $NetBSD: utils.c,v 1.43 2015/03/02 03:17:24 enami Exp $ */
+/* $NetBSD: utils.c,v 1.44 2015/03/03 00:20:38 enami Exp $ */
 /*-
  * Copyright (c) 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
+ *
  * 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. 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.
  */
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)utils.c	8.3 (Berkeley) 4/1/94";
 #else
-__RCSID("$NetBSD: utils.c,v 1.43 2015/03/02 03:17:24 enami Exp $");
+__RCSID("$NetBSD: utils.c,v 1.44 2015/03/03 00:20:38 enami Exp $");
 #endif
 #endif /* not lint */
 #include <sys/mman.h>
 #include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/extattr.h>
 #include <err.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fts.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include "extern.h"
 #define	MMAP_MAX_SIZE	(8 * 1048576)
 #define	MMAP_MAX_WRITE	(64 * 1024)
 int
 set_utimes(const char *file, struct stat *fs)
+{
     struct timespec ts[2];
     ts[0] = fs->st_atimespec;
     ts[1] = fs->st_mtimespec;
     if (lutimens(file, ts)) {
-	warn("lutimes: %s", file);
+	warn("lutimens: %s", file);
 	return (1);
+    }
     return (0);
+}
 struct finfo {
 	const char *from;
 	const char *to;
 	size_t size;
 };
 static void
 progress(const struct finfo *fi, size_t written)
+{
 	int pcent = (int)((100.0 * written) / fi->size);
 	pinfo = 0;
 	(void)fprintf(stderr, "%s => %s %zu/%zu bytes %d%% written\n",
 	    fi->from, fi->to, written, fi->size, pcent);
+}
 int
 copy_file(FTSENT *entp, int dne)
+{
 	static char buf[MAXBSIZE];
 	struct stat to_stat, *fs;
 	int ch, checkch, from_fd, rcount, rval, to_fd, tolnk, wcount;
 	char *p;
 	size_t ptotal = 0;
 	if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
 		warn("%s", entp->fts_path);
 		return (1);
+	}
 	to_fd = -1;
 	fs = entp->fts_statp;
 	tolnk = ((Rflag && !(Lflag || Hflag)) || Pflag);
 	/*
 	 * If the file exists and we're interactive, verify with the user.
 	 * If the file DNE, set the mode to be the from file, minus setuid
 	 * bits, modified by the umask; arguably wrong, but it makes copying
 	 * executables work right and it's been that way forever.  (The
 	 * other choice is 666 or'ed with the execute bits on the from file
 	 * modified by the umask.)
 	 */
 	if (!dne) {
 		struct stat sb;
 		int sval;
 		if (iflag) {
 			(void)fprintf(stderr, "overwrite %s? ", to.p_path);
 			checkch = ch = getchar();
 			while (ch != '\n' && ch != EOF)
 				ch = getchar();
 			if (checkch != 'y' && checkch != 'Y') {
 				(void)close(from_fd);
 				return (0);
+			}
+		}
 		sval = tolnk ?
 			lstat(to.p_path, &sb) : stat(to.p_path, &sb);
 		if (sval == -1) {
 			warn("stat: %s", to.p_path);
 			(void)close(from_fd);
 			return (1);
+		}
 		if (!(tolnk && S_ISLNK(sb.st_mode)))
 			to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
 	} else
 		to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
 		    fs->st_mode & ~(S_ISUID | S_ISGID));
 	if (to_fd == -1 && (fflag || tolnk)) {
 		/*
 		 * attempt to remove existing destination file name and
 		 * create a new file
 		 */
 		(void)unlink(to.p_path);
 		to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
 			     fs->st_mode & ~(S_ISUID | S_ISGID));
+	}
 	if (to_fd == -1) {
 		warn("%s", to.p_path);
 		(void)close(from_fd);
 		return (1);
+	}
 	rval = 0;
 	/* if hard linking then simply close the open fds, link and return */
 	if (lflag) {
 		(void)close(from_fd);
 		(void)close(to_fd);
 		(void)unlink(to.p_path);
 		if (link(entp->fts_path, to.p_path)) {
 			warn("%s", to.p_path);
 			return (1);
+		}
 		return (0);
+	}
 	/*
 	 * There's no reason to do anything other than close the file
 	 * now if it's empty, so let's not bother.
 	 */
 	if (fs->st_size > 0) {
 		struct finfo fi;
 		fi.from = entp->fts_path;
 		fi.to = to.p_path;
 		fi.size = (size_t)fs->st_size;
 		/*
 		 * Mmap and write if less than 8M (the limit is so
 		 * we don't totally trash memory on big files).
 		 * This is really a minor hack, but it wins some CPU back.
 		 */
 		bool use_read;
 		use_read = true;
 		if (fs->st_size <= MMAP_MAX_SIZE) {
 			size_t fsize = (size_t)fs->st_size;
 			p = mmap(NULL, fsize, PROT_READ, MAP_FILE|MAP_SHARED,
 			    from_fd, (off_t)0);
 			if (p != MAP_FAILED) {
 				size_t remainder;
 				use_read = false;
 				(void) madvise(p, (size_t)fs->st_size,
 				     MADV_SEQUENTIAL);
 				/*
 				 * Write out the data in small chunks to
 				 * avoid locking the output file for a
 				 * long time if the reading the data from
 				 * the source is slow.
 				 */
 				remainder = fsize;
 				do {
 					ssize_t chunk;
 					chunk = (remainder > MMAP_MAX_WRITE) ?
 					    MMAP_MAX_WRITE : remainder;
 					if (write(to_fd, &p[fsize - remainder],
 					    chunk) != chunk) {
 						warn("%s", to.p_path);
 						rval = 1;
 						break;
+					}
 					remainder -= chunk;
 					ptotal += chunk;
 					if (pinfo)
 						progress(&fi, ptotal);
 				} while (remainder > 0);
 				if (munmap(p, fsize) < 0) {
 					warn("%s", entp->fts_path);
 					rval = 1;
+				}
+			}
+		}
 		if (use_read) {
 			while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
 				wcount = write(to_fd, buf, (size_t)rcount);
 				if (rcount != wcount || wcount == -1) {
 					warn("%s", to.p_path);
 					rval = 1;
 					break;
+				}
 				ptotal += wcount;
 				if (pinfo)
 					progress(&fi, ptotal);
+			}
 			if (rcount < 0) {
 				warn("%s", entp->fts_path);
 				rval = 1;
+			}
+		}
+	}
 	if (pflag && (fcpxattr(from_fd, to_fd) != 0))
 		warn("%s: error copying extended attributes", to.p_path);
 	(void)close(from_fd);
 	if (rval == 1) {
 		(void)close(to_fd);
 		return (1);
+	}
 	if (pflag && setfile(fs, to_fd))
 		rval = 1;
 	/*
 	 * If the source was setuid or setgid, lose the bits unless the
 	 * copy is owned by the same user and group.
 	 */
 #define	RETAINBITS \
 	(S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
 	if (!pflag && dne
 	    && fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
 		if (fstat(to_fd, &to_stat)) {
 			warn("%s", to.p_path);
 			rval = 1;
 		} else if (fs->st_gid == to_stat.st_gid &&
 		    fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
 			warn("%s", to.p_path);
 			rval = 1;
+		}
+	}
 	if (close(to_fd)) {
 		warn("%s", to.p_path);
 		rval = 1;
+	}
 	/* set the mod/access times now after close of the fd */
 	if (pflag && set_utimes(to.p_path, fs)) {
 	    rval = 1;
+	}
 	return (rval);
+}
 int
 copy_link(FTSENT *p, int exists)
+{
 	int len;
 	char target[MAXPATHLEN];
 	if ((len = readlink(p->fts_path, target, sizeof(target)-1)) == -1) {
 		warn("readlink: %s", p->fts_path);
 		return (1);
+	}
 	target[len] = '\0';
 	if (exists && unlink(to.p_path)) {
 		warn("unlink: %s", to.p_path);
 		return (1);
+	}
 	if (symlink(target, to.p_path)) {
 		warn("symlink: %s", target);
 		return (1);
+	}
 	return (pflag ? setfile(p->fts_statp, 0) : 0);
+}
 int
 copy_fifo(struct stat *from_stat, int exists)
+{
 	if (exists && unlink(to.p_path)) {
 		warn("unlink: %s", to.p_path);
 		return (1);
+	}
 	if (mkfifo(to.p_path, from_stat->st_mode)) {
 		warn("mkfifo: %s", to.p_path);
 		return (1);
+	}
 	return (pflag ? setfile(from_stat, 0) : 0);
+}
 int
 copy_special(struct stat *from_stat, int exists)
+{
 	if (exists && unlink(to.p_path)) {
 		warn("unlink: %s", to.p_path);
 		return (1);
+	}
 	if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
 		warn("mknod: %s", to.p_path);
 		return (1);
+	}
 	return (pflag ? setfile(from_stat, 0) : 0);
+}
 /*
  * Function: setfile
+ *
  * Purpose:
  *   Set the owner/group/permissions for the "to" file to the information
  *   in the stat structure.  If fd is zero, also call set_utimes() to set
  *   the mod/access times.  If fd is non-zero, the caller must do a utimes
  *   itself after close(fd).
  */
 int
 setfile(struct stat *fs, int fd)
+{
 	int rval, islink;
 	rval = 0;
 	islink = S_ISLNK(fs->st_mode);
 	fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
 	/*
 	 * Changing the ownership probably won't succeed, unless we're root
 	 * or POSIX_CHOWN_RESTRICTED is not set.  Set uid/gid before setting
 	 * the mode; current BSD behavior is to remove all setuid bits on
 	 * chown.  If chown fails, lose setuid/setgid bits.
 	 */
 	if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
 	    lchown(to.p_path, fs->st_uid, fs->st_gid)) {
 		if (errno != EPERM) {
 			warn("chown: %s", to.p_path);
 			rval = 1;
+		}
 		fs->st_mode &= ~(S_ISUID | S_ISGID);
+	}
 	if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
 		warn("chmod: %s", to.p_path);
 		rval = 1;
+	}
 	if (!islink && !Nflag) {
 		unsigned long fflags = fs->st_flags;
 		/*
 		 * XXX
 		 * NFS doesn't support chflags; ignore errors unless
 		 * there's reason to believe we're losing bits.
 		 * (Note, this still won't be right if the server
 		 * supports flags and we were trying to *remove* flags
 		 * on a file that we copied, i.e., that we didn't create.)
 		 */
 		errno = 0;
 		if ((fd ? fchflags(fd, fflags) :
 		    chflags(to.p_path, fflags)) == -1)
 			if (errno != EOPNOTSUPP || fs->st_flags != 0) {
 				warn("chflags: %s", to.p_path);
 				rval = 1;
+			}
+	}
 	/* if fd is non-zero, caller must call set_utimes() after close() */
 	if (fd == 0 && set_utimes(to.p_path, fs))
 	    rval = 1;
 	return (rval);
+}
 void
 usage(void)
+{
 	(void)fprintf(stderr,
 	    "usage: %s [-R [-H | -L | -P]] [-f | -i] [-alNpv] src target\n"
 	    "       %s [-R [-H | -L | -P]] [-f | -i] [-alNpv] src1 ... srcN directory\n",
 	    getprogname(), getprogname());
 	exit(1);
 	/* NOTREACHED */
+}