BSD 4.4 Lite usr.sbin Sources

4 files changed, 567 insertions, 0 deletions

diff --git a/usr.sbin/chown/Makefile b/usr.sbin/chown/Makefile
new file mode 100644
index 0000000..084b4bc
--- /dev/null
+++ b/usr.sbin/chown/Makefile
@@ -0,0 +1,9 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	chown
+CFLAGS+=-DSUPPORT_DOT
+MAN1=	chgrp.0
+MAN8=	chown.0
+LINKS=	${BINDIR}/chown /usr/bin/chgrp
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/chown/chgrp.1 b/usr.sbin/chown/chgrp.1
new file mode 100644
index 0000000..1adcb80
--- /dev/null
+++ b/usr.sbin/chown/chgrp.1
@@ -0,0 +1,136 @@
+.\" Copyright (c) 1983, 1990, 1993, 1994
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the Institute of Electrical and Electronics Engineers, Inc.
+.\"
+.\" 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.
+.\"
+.\"     @(#)chgrp.1	8.3 (Berkeley) 3/31/94
+.\"
+.Dd March 31, 1994
+.Dt CHGRP 1
+.Os BSD 4.2
+.Sh NAME
+.Nm chgrp
+.Nd change group
+.Sh SYNOPSIS
+.Nm chgrp
+.Oo
+.Fl R
+.Op Fl H | Fl L | Fl P
+.Oc
+.Op Fl f
+.Ar group
+.Ar files ...
+.Sh DESCRIPTION
+The chgrp utility sets the group ID of the file named by each
+.Ar file
+operand to the
+.Ar group
+ID specified by the group operand.
+.Pp
+Options:
+.Bl -tag -width Ds
+.It Fl H
+If the
+.Fl R
+option is specified, symbolic links on the command line are followed.
+(Symbolic links encountered in the tree traversal are not followed.)
+.It Fl L
+If the
+.Fl R
+option is specified, all symbolic links are followed.
+.It Fl P
+If the
+.Fl R
+option is specified, no symbolic links are followed.
+.It Fl R
+Change the group ID for the file hierarchies rooted
+in the files instead of just the files themselves.
+.It Fl f
+The force option ignores errors, except for usage errors and doesn't
+query about strange modes (unless the user does not have proper permissions).
+.El
+.Pp
+Symbolic links don't have groups, so unless the 
+.Fl H
+or
+.Fl L
+option is set,
+.Nm chgrp
+on a symbolic link always succeeds and has no effect.
+The
+.Fl H ,
+.Fl L
+and
+.Fl P
+options are ignored unless the
+.Fl R
+option is specified.
+In addition, these options override each other and the
+command's actions are determined by the last one specified.
+.Pp
+The
+.Ar group
+operand can be either a group name from the group database,
+or a numeric group ID.
+If a group name is also a numeric group ID, the operand is used as a
+group name.
+.Pp
+The user invoking
+.Nm chgrp
+must belong to the specified group and be the owner of the file,
+or be the super-user.
+.Pp
+The
+.Nm chgrp
+utility exits 0 on success, and >0 if an error occurs.
+.Sh COMPATIBILITY
+Previous versions of the
+.Nm chgrp
+utility changed the group of symbolic links specified on the command
+line.
+In this system, symbolic links do not have groups.
+.Sh FILES
+.Bl -tag -width /etc/group -compact
+.It Pa /etc/group
+Group ID file
+.El
+.Sh SEE ALSO
+.Xr chown 2 ,
+.Xr group 5 ,
+.Xr passwd 5 ,
+.Xr fts 3 ,
+.Xr symlink 7 ,
+.Xr chown 8
+.Sh STANDARDS
+The
+.Nm chgrp
+utility is expected to be POSIX 1003.2 compatible.
diff --git a/usr.sbin/chown/chown.8 b/usr.sbin/chown/chown.8
new file mode 100644
index 0000000..f0cd533
--- /dev/null
+++ b/usr.sbin/chown/chown.8
@@ -0,0 +1,149 @@
+.\" Copyright (c) 1990, 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. 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.
+.\"
+.\"     @(#)chown.8	8.3 (Berkeley) 3/31/94
+.\"
+.Dd March 31, 1994
+.Dt CHOWN 8
+.Os BSD 4
+.Sh NAME
+.Nm chown
+.Nd change file owner and group
+.Sh SYNOPSIS
+.Nm chown
+.Oo
+.Fl R
+.Op Fl H | Fl L | Fl P
+.Oc
+.Op Fl f
+.Ar owner Op Ar :group
+.Ar file ...
+.Nm chown
+.Oo
+.Fl R
+.Op Fl H | Fl L | Fl P
+.Oc
+.Op Fl f
+.Ar :group
+.Ar file ...
+.Sh DESCRIPTION
+.Nm Chown
+sets the user ID and/or the group ID of the specified files.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl H
+If the
+.Fl R
+option is specified, symbolic links on the command line are followed.
+(Symbolic links encountered in the tree traversal are not followed.)
+.It Fl L
+If the
+.Fl R
+option is specified, all symbolic links are followed.
+.It Fl P
+If the
+.Fl R
+option is specified, no symbolic links are followed.
+.It Fl R
+Change the user ID and/or the group ID for the file hierarchies rooted
+in the files instead of just the files themselves.
+.It Fl f
+Don't report any failure to change file owner or group, nor modify
+the exit status to reflect such failures.
+.El
+.Pp
+Symbolic links don't have owners, so unless the
+.Fl H
+or 
+.Fl L 
+option is set,
+.Nm chown
+on a symbolic link always succeeds and has no effect.
+The
+.Fl H ,
+.Fl L
+and
+.Fl P
+options are ignored unless the
+.Fl R
+option is specified.
+In addition, these options override each other and the
+command's actions are determined by the last one specified.
+.Pp
+The
+.Ar owner
+and
+.Ar group
+operands are both optional, however, one must be specified.
+If the
+.Ar group
+operand is specified, it must be preceded by a colon (``:'') character.
+.Pp
+The
+.Ar owner
+may be either a numeric user ID or a user name.
+If a user name is also a numeric user ID, the operand is used as a
+user name.
+The
+.Ar group
+may be either a numeric group ID or a group name.
+If a group name is also a numeric group ID, the operand is used as a
+group name.
+.Pp
+The ownership of a file may only be altered by a super-user for
+obvious security reasons.
+.Pp
+The
+.Nm chown
+utility exits 0 on success, and >0 if an error occurs.
+.Sh COMPATIBILITY
+Previous versions of the
+.Nm chown
+utility used the dot (``.'') character to distinguish the group name.
+This has been changed to be a colon (``:'') character so that user and
+group names may contain the dot character.
+.Pp
+Previous versions of the
+.Nm chown
+utility changed the owner of symbolic links specified on the command
+line.
+In this system, symbolic links do not have owners.
+.Sh SEE ALSO
+.Xr chgrp 1 ,
+.Xr find 1 ,
+.Xr chown 2 ,
+.Xr fts 3 ,
+.Xr symlink 7
+.Sh STANDARDS
+The
+.Nm chown
+command is expected to be POSIX 1003.2 compliant.
diff --git a/usr.sbin/chown/chown.c b/usr.sbin/chown/chown.c
new file mode 100644
index 0000000..9121777
--- /dev/null
+++ b/usr.sbin/chown/chown.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 1988, 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. 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) 1988, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)chown.c	8.8 (Berkeley) 4/4/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <fts.h>
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void	a_gid __P((char *));
+void	a_uid __P((char *));
+void	chownerr __P((char *));
+u_long	id __P((char *, char *));
+void	usage __P((void));
+
+uid_t uid;
+gid_t gid;
+int Rflag, ischown, fflag;
+char *gname, *myname;
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	FTS *ftsp;
+	FTSENT *p;
+	int Hflag, Lflag, Pflag, ch, fts_options, hflag, rval;
+	char *cp;
+	
+	myname = (cp = rindex(*argv, '/')) ? cp + 1 : *argv;
+	ischown = myname[2] == 'o';
+	
+	Hflag = Lflag = Pflag = hflag = 0;
+	while ((ch = getopt(argc, argv, "HLPRfh")) != EOF)
+		switch (ch) {
+		case 'H':
+			Hflag = 1;
+			Lflag = Pflag = 0;
+			break;
+		case 'L':
+			Lflag = 1;
+			Hflag = Pflag = 0;
+			break;
+		case 'P':
+			Pflag = 1;
+			Hflag = Lflag = 0;
+			break;
+		case 'R':
+			Rflag = 1;
+			break;
+		case 'f':
+			fflag = 1;
+			break;
+		case 'h':
+			/*
+			 * In System V (and probably POSIX.2) the -h option
+			 * causes chown/chgrp to change the owner/group of
+			 * the symbolic link.  4.4BSD's symbolic links don't
+			 * have owners/groups, so it's an undocumented noop.
+			 * Do syntax checking, though.
+			 */
+			hflag = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argv += optind;
+	argc -= optind;
+
+	if (argc < 2)
+		usage();
+
+	fts_options = FTS_PHYSICAL;
+	if (Rflag) {
+		if (hflag)
+			errx(1,
+		"the -R and -h options may not be specified together.");
+		if (Hflag)
+			fts_options |= FTS_COMFOLLOW;
+		if (Lflag) {
+			fts_options &= ~FTS_PHYSICAL;
+			fts_options |= FTS_LOGICAL;
+		}
+	}
+
+	uid = gid = -1;
+	if (ischown) {
+#ifdef SUPPORT_DOT
+		if ((cp = strchr(*argv, '.')) != NULL) {
+			*cp++ = '\0';
+			a_gid(cp);
+		} else
+#endif
+		if ((cp = strchr(*argv, ':')) != NULL) {
+			*cp++ = '\0';
+			a_gid(cp);
+		} 
+		a_uid(*argv);
+	} else 
+		a_gid(*argv);
+
+	if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
+		err(1, NULL);
+
+	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
+		switch (p->fts_info) {
+		case FTS_D:
+			if (Rflag)		/* Change it at FTS_DP. */
+				continue;
+			fts_set(ftsp, p, FTS_SKIP);
+			break;
+		case FTS_DNR:			/* Warn, chown, continue. */
+			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
+			rval = 1;
+			break;
+		case FTS_ERR:			/* Warn, continue. */
+		case FTS_NS:
+			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
+			rval = 1;
+			continue;
+		case FTS_SL:			/* Ignore. */
+		case FTS_SLNONE:
+			/*
+			 * The only symlinks that end up here are ones that
+			 * don't point to anything and ones that we found
+			 * doing a physical walk.
+			 */
+			continue;
+		default:
+			break;
+		}
+		if (chown(p->fts_accpath, uid, gid) && !fflag) {
+			chownerr(p->fts_path);
+			rval = 1;
+		}
+	}
+	if (errno)
+		err(1, "fts_read");
+	exit(rval);
+}
+
+void
+a_gid(s)
+	char *s;
+{
+	struct group *gr;
+
+	if (*s == '\0')			/* Argument was "uid[:.]". */
+		return;
+	gname = s;
+	gid = ((gr = getgrnam(s)) == NULL) ? id(s, "group") : gr->gr_gid;
+}
+
+void
+a_uid(s)
+	char *s;
+{
+	struct passwd *pw;
+
+	if (*s == '\0')			/* Argument was "[:.]gid". */
+		return;
+	uid = ((pw = getpwnam(s)) == NULL) ? id(s, "user") : pw->pw_uid;
+}
+
+u_long
+id(name, type)
+	char *name, *type;
+{
+	u_long val;
+	char *ep;
+
+	/*
+	 * XXX
+	 * We know that uid_t's and gid_t's are unsigned longs.
+	 */
+	errno = 0;
+	val = strtoul(name, &ep, 10);
+	if (errno)
+		err(1, "%s", name);
+	if (*ep != '\0')
+		errx(1, "%s: illegal %s name", name, type);
+	return (val);
+}
+
+void
+chownerr(file)
+	char *file;
+{
+	static int euid = -1, ngroups = -1;
+	int groups[NGROUPS];
+
+	/* Check for chown without being root. */
+	if (errno != EPERM ||
+	    uid != -1 && euid == -1 && (euid = geteuid()) != 0) {
+		if (fflag)
+			exit(0);
+		err(1, "%s", file);
+	}
+
+	/* Check group membership; kernel just returns EPERM. */
+	if (gid != -1 && ngroups == -1) {
+		ngroups = getgroups(NGROUPS, groups);
+		while (--ngroups >= 0 && gid != groups[ngroups]);
+		if (ngroups < 0) {
+			if (fflag)
+				exit(0);
+			errx(1, "you are not a member of group %s", gname);
+		}
+	}
+
+	if (!fflag) 
+		warn("%s", file);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+	    "usage: %s [-R [-H | -L | -P]] [-f] %s file ...\n",
+	    myname, ischown ? "[owner][:group]" : "group");
+	exit(1);
+}