Importing usr.bin/pathchk

No Minix-specific changes needed.

Change-Id: Ieff3f98a35f93f3e2fa613802327c37ce4878b86

distrib/sets/lists/minix/mi

@@ -427,6 +427,7 @@
 ./usr/bin/passwd			minix-sys
 ./usr/bin/paste				minix-sys
 ./usr/bin/patch				minix-sys
+./usr/bin/pathchk			minix-sys
 ./usr/bin/pax				minix-sys	obsolete
 ./usr/bin/ping				minix-sys
 ./usr/bin/pkgin_all			minix-sys
@@ -2008,6 +2009,7 @@
 ./usr/man/man1/passwd.1			minix-sys
 ./usr/man/man1/paste.1			minix-sys
 ./usr/man/man1/patch.1			minix-sys
+./usr/man/man1/pathchk.1		minix-sys
 ./usr/man/man1/pax.1			minix-sys
 ./usr/man/man1/ping.1			minix-sys
 ./usr/man/man1/pkg_view.1		minix-sys

releasetools/nbsd_ports

@@ -196,6 +196,7 @@
 2010/05/14 17:28:23,usr.bin/newgrp
 2012/10/17 12:00:00,usr.bin/passwd
 2012/10/17 12:00:00,usr.bin/paste
+2012/10/17 12:00:00,usr.bin/pathchk
 2013/10/24 12:00:00,usr.bin/pr
 2013/10/17 12:00:00,usr.bin/printenv
 2012/10/17 12:00:00,usr.bin/printf

usr.bin/Makefile

@@ -19,7 +19,7 @@ SUBDIR= asa \
 	mkdep mktemp \
 	\
 	nbperf newgrp nice nl nohup nvi \
-	passwd paste pr \
+	passwd paste pathchk pr \
 	printenv printf pwhash \
 	renice rev \
 	\

usr.bin/pathchk/Makefile

@@ -0,0 +1,6 @@
+#	$NetBSD: Makefile,v 1.2 2009/04/14 22:15:25 lukem Exp $
+
+PROG=	pathchk
+SRCS=	pathchk.c
+
+.include <bsd.prog.mk>

usr.bin/pathchk/pathchk.1

@@ -0,0 +1,123 @@
+.\"	$NetBSD: pathchk.1,v 1.6 2010/11/16 23:59:02 wiz Exp $
+.\"
+.\" Copyright (c) 2001, 2002 Chuck Rouillard
+.\" 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. The name of the author may not be used to endorse or promote
+.\"    products derived from this software without specific prior written
+.\"    permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+.\"
+.\" from FreeBSD: pathchk.1,v 1.3 2002/12/12 17:26:01 ru Exp
+.\"
+.Dd November 9, 2010
+.Dt PATHCHK 1
+.Os
+.Sh NAME
+.Nm pathchk
+.Nd check pathnames
+.Sh SYNOPSIS
+.Nm
+.Op Fl p
+.Ar pathname ...
+.Sh DESCRIPTION
+The
+.Nm
+utility checks whether each of the specified
+.Ar pathname
+arguments is valid or portable.
+.Pp
+A diagnostic message is written for each argument that:
+.Bl -bullet
+.It
+Is longer than
+.Dv PATH_MAX
+bytes.
+.It
+Contains any component longer than
+.Dv NAME_MAX
+bytes.
+(The value of
+.Dv NAME_MAX
+depends on the underlying file system.)
+.It
+Contains a directory component that is not searchable.
+.El
+.Pp
+It is not considered an error if a
+.Ar pathname
+argument contains a nonexistent component as long as a component by that
+name could be created.
+.Pp
+The options are as follows:
+.Bl -tag -width indent
+.It Fl p
+Perform portability checks on the specified
+.Ar pathname
+arguments.
+Diagnostic messages will be written for each argument that:
+.Bl -bullet
+.It
+Is longer than
+.Dv _POSIX_PATH_MAX
+.Pq 255
+bytes.
+.It
+Contains a component longer than
+.Dv _POSIX_NAME_MAX
+.Pq 14
+bytes.
+.It
+Contains any character not in the portable filename character set (that is,
+alphanumeric characters,
+.Ql \&. ,
+.Ql \&-
+and
+.Ql _ ) .
+No component may start with the hyphen
+.Pq Ql \&-
+character.
+.El
+.El
+.Sh EXAMPLES
+Check whether the names of files in the current directory are portable to
+other
+.Tn POSIX
+systems:
+.Pp
+.Dl "find . -exec pathchk -p \e{\e} +"
+or the more efficient:
+.Dl "find . -print0 | xargs -0 pathchk -p"
+.Sh SEE ALSO
+.Xr getconf 1 ,
+.Xr pathconf 2 ,
+.Xr stat 2
+.Sh STANDARDS
+The
+.Nm
+utility conforms to
+.St -p1003.1-2001 .
+.Sh HISTORY
+A
+.Nm
+utility appeared in
+.Nx 2.0 .

usr.bin/pathchk/pathchk.c

@@ -0,0 +1,191 @@
+/*	$NetBSD: pathchk.c,v 1.2 2011/09/16 15:39:28 joerg Exp $	*/
+
+/*-
+ * Copyright (c) 2002 Tim J. Robbins.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * from FreeBSD: pathchk.c,v 1.4 2002/12/15 00:40:47 tjr Exp
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__RCSID("$NetBSD: pathchk.c,v 1.2 2011/09/16 15:39:28 joerg Exp $");
+#endif /* !lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static int check(const char *);
+static int portable(const char *);
+__dead static void usage(void);
+
+static int pflag;			/* Perform portability checks */
+
+int
+main(int argc, char *argv[])
+{
+	int ch, rval;
+	const char *arg;
+
+	while ((ch = getopt(argc, argv, "p")) > 0) {
+		switch (ch) {
+		case 'p':
+			pflag = 1;
+			break;
+		default:
+			usage();
+			/*NOTREACHED*/
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0)
+		usage();
+
+	rval = 0;
+	while ((arg = *argv++) != NULL)
+		rval |= check(arg);
+
+	exit(rval);
+}
+
+static void
+usage(void)
+{
+
+	fprintf(stderr, "usage: pathchk [-p] pathname...\n");
+	exit(1);
+}
+
+static int
+check(const char *path)
+{
+	struct stat sb;
+	long complen, namemax, pathmax, svnamemax;
+	int badch, last;
+	char *end, *p, *pathd;
+
+	if ((pathd = strdup(path)) == NULL)
+		err(1, "strdup");
+
+	p = pathd;
+
+	if (!pflag) {
+		errno = 0;
+		namemax = pathconf(*p == '/' ? "/" : ".", _PC_NAME_MAX);
+		if (namemax == -1 && errno != 0)
+			namemax = NAME_MAX;
+	} else
+		namemax = _POSIX_NAME_MAX;
+
+	for (;;) {
+		p += strspn(p, "/");
+		complen = (long)strcspn(p, "/");
+		end = p + complen;
+		last = *end == '\0';
+		*end = '\0';
+
+		if (namemax != -1 && complen > namemax) {
+			warnx("%s: %s: component too long (limit %ld)", path,
+			    p, namemax);
+			goto bad;
+		}
+
+		if (!pflag && stat(pathd, &sb) == -1 && errno != ENOENT) {
+			warn("%s: %.*s", path, (int)(strlen(pathd) -
+			    complen - 1), pathd);
+			goto bad;
+		}
+
+		if (pflag && (badch = portable(p)) >= 0) {
+			warnx("%s: %s: component contains non-portable "
+			    "character `%c'", path, p, badch);
+			goto bad;
+		}
+
+		if (last)
+			break;
+
+		if (!pflag) {
+			errno = 0;
+			svnamemax = namemax;
+			namemax = pathconf(pathd, _PC_NAME_MAX);
+			if (namemax == -1 && errno != 0)
+				namemax = svnamemax;
+		}
+
+		*end = '/';
+		p = end + 1;
+	}
+
+	if (!pflag) {
+		errno = 0;
+		pathmax = pathconf(path, _PC_PATH_MAX);
+		if (pathmax == -1 && errno != 0)
+			pathmax = PATH_MAX;
+	} else
+		pathmax = _POSIX_PATH_MAX;
+	if (pathmax != -1 && strlen(path) >= (size_t)pathmax) {
+		warnx("%s: path too long (limit %ld)", path, pathmax - 1);
+		goto bad;
+	}
+
+	free(pathd);
+	return (0);
+
+bad:	free(pathd);
+	return (1);
+}
+
+/*
+ * Check whether a path component contains only portable characters. Return
+ * the first non-portable character found.
+ */
+static int
+portable(const char *path)
+{
+	static const char charset[] =
+	    "abcdefghijklmnopqrstuvwxyz"
+	    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	    "0123456789._-";
+	long s;
+
+	if (*path == '-')
+		return (*path);
+
+	s = strspn(path, charset);
+	if (path[s] != '\0')
+		return (path[s]);
+
+	return (-1);
+}