Remove now unused unix/file.c and unix/fsaccess.c

OK jca, tedu

15 files changed, 18 insertions, 1419 deletions

diff --git a/usr.sbin/bind/bin/dig/dighost.c b/usr.sbin/bind/bin/dig/dighost.c
index 0290bd73e01..6cd485c34e2 100644
--- a/usr.sbin/bind/bin/dig/dighost.c
+++ b/usr.sbin/bind/bin/dig/dighost.c
@@ -14,7 +14,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: dighost.c,v 1.39 2020/01/25 10:59:19 florian Exp $ */
+/* $Id: dighost.c,v 1.40 2020/01/26 11:23:42 florian Exp $ */
 
 /*! \file
  *  \note
@@ -55,7 +55,7 @@
 #include <isc/app.h>
 #include <isc/base64.h>
 
-#include <isc/file.h>
+
 #include <isc/hex.h>
 #include <isc/lang.h>
 #include <isc/log.h>
diff --git a/usr.sbin/bind/lib/dns/dst_api.c b/usr.sbin/bind/lib/dns/dst_api.c
index 007e68e3499..a4097ae0b7b 100644
--- a/usr.sbin/bind/lib/dns/dst_api.c
+++ b/usr.sbin/bind/lib/dns/dst_api.c
@@ -33,7 +33,7 @@
 
 /*
  * Principal Author: Brian Wellington
- * $Id: dst_api.c,v 1.20 2020/01/26 11:22:33 florian Exp $
+ * $Id: dst_api.c,v 1.21 2020/01/26 11:23:42 florian Exp $
  */
 
 /*! \file */
@@ -46,7 +46,7 @@
 #include <isc/buffer.h>
 #include <isc/dir.h>
 
-#include <isc/fsaccess.h>
+
 #include <isc/hmacsha.h>
 #include <isc/lex.h>
 
@@ -59,7 +59,7 @@
 #include <string.h>
 #include <isc/time.h>
 #include <isc/util.h>
-#include <isc/file.h>
+
 
 
 
diff --git a/usr.sbin/bind/lib/dns/dst_parse.c b/usr.sbin/bind/lib/dns/dst_parse.c
index 9329614750c..037151b7d61 100644
--- a/usr.sbin/bind/lib/dns/dst_parse.c
+++ b/usr.sbin/bind/lib/dns/dst_parse.c
@@ -33,15 +33,15 @@
 
 /*%
  * Principal Author: Brian Wellington
- * $Id: dst_parse.c,v 1.11 2020/01/26 11:22:33 florian Exp $
+ * $Id: dst_parse.c,v 1.12 2020/01/26 11:23:42 florian Exp $
  */
 
 
 
 #include <isc/base64.h>
 #include <isc/dir.h>
-#include <isc/file.h>
-#include <isc/fsaccess.h>
+
+
 #include <isc/lex.h>
 
 
diff --git a/usr.sbin/bind/lib/dns/masterdump.c b/usr.sbin/bind/lib/dns/masterdump.c
index 44f6acad8a9..c2ec60bbc9c 100644
--- a/usr.sbin/bind/lib/dns/masterdump.c
+++ b/usr.sbin/bind/lib/dns/masterdump.c
@@ -21,7 +21,7 @@
 #include <stdlib.h>
 
 #include <isc/event.h>
-#include <isc/file.h>
+
 #include <isc/magic.h>
 
 
diff --git a/usr.sbin/bind/lib/isc/Makefile.in b/usr.sbin/bind/lib/isc/Makefile.in
index 4bf98db88e6..4f7262e4ee7 100644
--- a/usr.sbin/bind/lib/isc/Makefile.in
+++ b/usr.sbin/bind/lib/isc/Makefile.in
@@ -30,7 +30,7 @@ CWARNINGS =
 # Alphabetically
 UNIXOBJS =	 \
 		unix/app.@O@ unix/dir.@O@ unix/errno.@O@ \
-		unix/errno2result.@O@ unix/file.@O@ unix/fsaccess.@O@ \
+		unix/errno2result.@O@ \
 		unix/net.@O@ \
 		unix/socket.@O@ unix/stdio.@O@ \
 		unix/stdtime.@O@ unix/strerror.@O@ unix/time.@O@
diff --git a/usr.sbin/bind/lib/isc/fsaccess.c b/usr.sbin/bind/lib/isc/fsaccess.c
deleted file mode 100644
index 5be67607475..00000000000
--- a/usr.sbin/bind/lib/isc/fsaccess.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: fsaccess.c,v 1.4 2020/01/09 13:47:13 florian Exp $ */
-
-/*! \file
- * \brief
- * This file contains the OS-independent functionality of the API.
- */
-#include <isc/fsaccess.h>
-
-#include <isc/result.h>
-#include <isc/util.h>
-
-/*!
- * Shorthand.  Maybe ISC__FSACCESS_PERMISSIONBITS should not even be in
- * <isc/fsaccess.h>.  Could check consistency with sizeof(isc_fsaccess_t)
- * and the number of bits in each function.
- */
-#define STEP		(ISC__FSACCESS_PERMISSIONBITS)
-#define GROUP		(STEP)
-#define OTHER		(STEP * 2)
-
-void
-isc_fsaccess_add(int trustee, int permission, isc_fsaccess_t *access) {
-	REQUIRE(trustee <= 0x7);
-	REQUIRE(permission <= 0xFF);
-
-	if ((trustee & ISC_FSACCESS_OWNER) != 0)
-		*access |= permission;
-
-	if ((trustee & ISC_FSACCESS_GROUP) != 0)
-		*access |= (permission << GROUP);
-
-	if ((trustee & ISC_FSACCESS_OTHER) != 0)
-		*access |= (permission << OTHER);
-}
-
-void
-isc_fsaccess_remove(int trustee, int permission, isc_fsaccess_t *access) {
-	REQUIRE(trustee <= 0x7);
-	REQUIRE(permission <= 0xFF);
-
-
-	if ((trustee & ISC_FSACCESS_OWNER) != 0)
-		*access &= ~permission;
-
-	if ((trustee & ISC_FSACCESS_GROUP) != 0)
-		*access &= ~(permission << GROUP);
-
-	if ((trustee & ISC_FSACCESS_OTHER) != 0)
-		*access &= ~(permission << OTHER);
-}
-
-static isc_result_t
-check_bad_bits(isc_fsaccess_t access, isc_boolean_t is_dir) {
-	isc_fsaccess_t bits;
-
-	/*
-	 * Check for disallowed user bits.
-	 */
-	if (is_dir)
-		bits = ISC_FSACCESS_READ |
-		       ISC_FSACCESS_WRITE |
-		       ISC_FSACCESS_EXECUTE;
-	else
-		bits = ISC_FSACCESS_CREATECHILD |
-		       ISC_FSACCESS_ACCESSCHILD |
-		       ISC_FSACCESS_DELETECHILD |
-		       ISC_FSACCESS_LISTDIRECTORY;
-
-	/*
-	 * Set group bad bits.
-	 */
-	bits |= bits << STEP;
-	/*
-	 * Set other bad bits.
-	 */
-	bits |= bits << STEP;
-
-	if ((access & bits) != 0) {
-		if (is_dir)
-			return (ISC_R_NOTFILE);
-		else
-			return (ISC_R_NOTDIRECTORY);
-	}
-
-	return (ISC_R_SUCCESS);
-}
diff --git a/usr.sbin/bind/lib/isc/include/isc/Makefile.in b/usr.sbin/bind/lib/isc/include/isc/Makefile.in
index 60e7de220e4..72640e58c81 100644
--- a/usr.sbin/bind/lib/isc/include/isc/Makefile.in
+++ b/usr.sbin/bind/lib/isc/include/isc/Makefile.in
@@ -26,7 +26,7 @@ VERSION=@BIND9_VERSION@
 HEADERS =	aes.h app.h assertions.h base32.h base64.h \
 		bind9.h boolean.h buffer.h bufferlist.h \
 		commandline.h errno.h error.h \
-		event.h eventclass.h file.h formatcheck.h fsaccess.h \
+		event.h eventclass.h formatcheck.h \
 		hash.h heap.h hex.h hmacmd5.h hmacsha.h \
 		@ISC_IPV6_H@ iterated_hash.h \
 		lang.h lex.h lib.h likely.h list.h log.h \
diff --git a/usr.sbin/bind/lib/isc/include/isc/file.h b/usr.sbin/bind/lib/isc/include/isc/file.h
deleted file mode 100644
index d523564f5d6..00000000000
--- a/usr.sbin/bind/lib/isc/include/isc/file.h
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: file.h,v 1.5 2020/01/25 10:58:21 deraadt Exp $ */
-
-#ifndef ISC_FILE_H
-#define ISC_FILE_H 1
-
-/*! \file isc/file.h */
-
-#include <stdio.h>
-
-#include <isc/lang.h>
-#include <isc/stat.h>
-#include <isc/types.h>
-
-ISC_LANG_BEGINDECLS
-
-isc_result_t
-isc_file_settime(const char *file, isc_time_t *time);
-
-isc_result_t
-isc_file_mode(const char *file, mode_t *modep);
-
-isc_result_t
-isc_file_getmodtime(const char *file, isc_time_t *time);
-/*!<
- * \brief Get the time of last modification of a file.
- *
- * Notes:
- *\li	The time that is set is relative to the (OS-specific) epoch, as are
- *	all isc_time_t structures.
- *
- * Requires:
- *\li	file != NULL.
- *\li	time != NULL.
- *
- * Ensures:
- *\li	If the file could not be accessed, 'time' is unchanged.
- *
- * Returns:
- *\li	#ISC_R_SUCCESS
- *		Success.
- *\li	#ISC_R_NOTFOUND
- *		No such file exists.
- *\li	#ISC_R_INVALIDFILE
- *		The path specified was not usable by the operating system.
- *\li	#ISC_R_NOPERM
- *		The file's metainformation could not be retrieved because
- *		permission was denied to some part of the file's path.
- *\li	#ISC_R_IOERROR
- *		Hardware error interacting with the filesystem.
- *\li	#ISC_R_UNEXPECTED
- *		Something totally unexpected happened.
- *
- */
-
-isc_result_t
-isc_file_mktemplate(const char *path, char *buf, size_t buflen);
-/*!<
- * \brief Generate a template string suitable for use with isc_file_openunique().
- *
- * Notes:
- *\li	This function is intended to make creating temporary files
- *	portable between different operating systems.
- *
- *\li	The path is prepended to an implementation-defined string and
- *	placed into buf.  The string has no path characters in it,
- *	and its maximum length is 14 characters plus a NUL.  Thus
- *	buflen should be at least strlen(path) + 15 characters or
- *	an error will be returned.
- *
- * Requires:
- *\li	buf != NULL.
- *
- * Ensures:
- *\li	If result == #ISC_R_SUCCESS:
- *		buf contains a string suitable for use as the template argument
- *		to isc_file_openunique().
- *
- *\li	If result != #ISC_R_SUCCESS:
- *		buf is unchanged.
- *
- * Returns:
- *\li	#ISC_R_SUCCESS 	Success.
- *\li	#ISC_R_NOSPACE	buflen indicates buf is too small for the catenation
- *				of the path with the internal template string.
- */
-
-isc_result_t
-isc_file_openunique(char *templet, FILE **fp);
-isc_result_t
-isc_file_openuniqueprivate(char *templet, FILE **fp);
-isc_result_t
-isc_file_openuniquemode(char *templet, int mode, FILE **fp);
-isc_result_t
-isc_file_bopenunique(char *templet, FILE **fp);
-isc_result_t
-isc_file_bopenuniqueprivate(char *templet, FILE **fp);
-isc_result_t
-isc_file_bopenuniquemode(char *templet, int mode, FILE **fp);
-/*!<
- * \brief Create and open a file with a unique name based on 'templet'.
- *	isc_file_bopen*() open the file in binary mode in Windows.
- *	isc_file_open*() open the file in text mode in Windows.
- *
- * Notes:
- *\li	'template' is a reserved work in C++.  If you want to complain
- *	about the spelling of 'templet', first look it up in the
- *	Merriam-Webster English dictionary. (http://www.m-w.com/)
- *
- *\li	This function works by using the template to generate file names.
- *	The template must be a writable string, as it is modified in place.
- *	Trailing X characters in the file name (full file name on Unix,
- *	basename on Win32 -- eg, tmp-XXXXXX vs XXXXXX.tmp, respectively)
- *	are replaced with ASCII characters until a non-existent filename
- *	is found.  If the template does not include pathname information,
- *	the files in the working directory of the program are searched.
- *
- *\li	isc_file_mktemplate is a good, portable way to get a template.
- *
- * Requires:
- *\li	'fp' is non-NULL and '*fp' is NULL.
- *
- *\li	'template' is non-NULL, and of a form suitable for use by
- *	the system as described above.
- *
- * Ensures:
- *\li	If result is #ISC_R_SUCCESS:
- *		*fp points to an stream opening in stdio's "w+" mode.
- *
- *\li	If result is not #ISC_R_SUCCESS:
- *		*fp is NULL.
- *
- *		No file is open.  Even if one was created (but unable
- *		to be reopened as a stdio FILE pointer) then it has been
- *		removed.
- *
- *\li	This function does *not* ensure that the template string has not been
- *	modified, even if the operation was unsuccessful.
- *
- * Returns:
- *\li	#ISC_R_SUCCESS
- *		Success.
- *\li	#ISC_R_EXISTS
- *		No file with a unique name could be created based on the
- *		template.
- *\li	#ISC_R_INVALIDFILE
- *		The path specified was not usable by the operating system.
- *\li	#ISC_R_NOPERM
- *		The file could not be created because permission was denied
- *		to some part of the file's path.
- *\li	#ISC_R_IOERROR
- *		Hardware error interacting with the filesystem.
- *\li	#ISC_R_UNEXPECTED
- *		Something totally unexpected happened.
- */
-
-isc_result_t
-isc_file_remove(const char *filename);
-/*!<
- * \brief Remove the file named by 'filename'.
- */
-
-isc_result_t
-isc_file_rename(const char *oldname, const char *newname);
-/*!<
- * \brief Rename the file 'oldname' to 'newname'.
- */
-
-isc_boolean_t
-isc_file_exists(const char *pathname);
-/*!<
- * \brief Return #ISC_TRUE if the calling process can tell that the given file exists.
- * Will not return true if the calling process has insufficient privileges
- * to search the entire path.
- */
-
-isc_boolean_t
-isc_file_isabsolute(const char *filename);
-/*!<
- * \brief Return #ISC_TRUE if the given file name is absolute.
- */
-
-isc_result_t
-isc_file_isplainfile(const char *name);
-
-isc_result_t
-isc_file_isplainfilefd(int fd);
-/*!<
- * \brief Check that the file is a plain file
- *
- * Returns:
- *\li	#ISC_R_SUCCESS
- *		Success. The file is a plain file.
- *\li	#ISC_R_INVALIDFILE
- *		The path specified was not usable by the operating system.
- *\li	#ISC_R_FILENOTFOUND
- *		The file does not exist. This return code comes from
- *		errno=ENOENT when stat returns -1. This code is mentioned
- *		here, because in logconf.c, it is the one rcode that is
- *		permitted in addition to ISC_R_SUCCESS. This is done since
- *		the next call in logconf.c is to isc_stdio_open(), which
- *		will create the file if it can.
- *\li	other ISC_R_* errors translated from errno
- *		These occur when stat returns -1 and an errno.
- */
-
-isc_result_t
-isc_file_isdirectory(const char *name);
-/*!<
- * \brief Check that 'name' exists and is a directory.
- *
- * Returns:
- *\li	#ISC_R_SUCCESS
- *		Success, file is a directory.
- *\li	#ISC_R_INVALIDFILE
- *		File is not a directory.
- *\li	#ISC_R_FILENOTFOUND
- *		File does not exist.
- *\li	other ISC_R_* errors translated from errno
- *		These occur when stat returns -1 and an errno.
- */
-
-isc_boolean_t
-isc_file_iscurrentdir(const char *filename);
-/*!<
- * \brief Return #ISC_TRUE if the given file name is the current directory (".").
- */
-
-isc_boolean_t
-isc_file_ischdiridempotent(const char *filename);
-/*%<
- * Return #ISC_TRUE if calling chdir(filename) multiple times will give
- * the same result as calling it once.
- */
-
-const char *
-isc_file_basename(const char *filename);
-/*%<
- * Return the final component of the path in the file name.
- */
-
-isc_result_t
-isc_file_progname(const char *filename, char *buf, size_t buflen);
-/*!<
- * \brief Given an operating system specific file name "filename"
- * referring to a program, return the canonical program name.
- *
- * Any directory prefix or executable file name extension (if
- * used on the OS in case) is stripped.  On systems where program
- * names are case insensitive, the name is canonicalized to all
- * lower case.  The name is written to 'buf', an array of 'buflen'
- * chars, and null terminated.
- *
- * Returns:
- *\li	#ISC_R_SUCCESS
- *\li	#ISC_R_NOSPACE 	The name did not fit in 'buf'.
- */
-
-isc_result_t
-isc_file_template(const char *path, const char *templet, char *buf,
-		  size_t buflen);
-/*%<
- * Create an OS specific template using 'path' to define the directory
- * 'templet' to describe the filename and store the result in 'buf'
- * such that path can be renamed to buf atomically.
- */
-
-isc_result_t
-isc_file_renameunique(const char *file, char *templet);
-/*%<
- * Rename 'file' using 'templet' as a template for the new file name.
- */
-
-isc_result_t
-isc_file_absolutepath(const char *filename, char *path, size_t pathlen);
-/*%<
- * Given a file name, return the fully qualified path to the file.
- */
-
-/*
- * XXX We should also have a isc_file_writeeopen() function
- * for safely open a file in a publicly writable directory
- * (see write_open() in BIND 8's ns_config.c).
- */
-
-isc_result_t
-isc_file_truncate(const char *filename, isc_offset_t size);
-/*%<
- * Truncate/extend the file specified to 'size' bytes.
- */
-
-isc_result_t
-isc_file_safecreate(const char *filename, FILE **fp);
-/*%<
- * Open 'filename' for writing, truncating if necessary.  Ensure that
- * if it existed it was a normal file.  If creating the file, ensure
- * that only the owner can read/write it.
- */
-
-isc_result_t
-isc_file_splitpath(const char *path,
-		   char **dirname, char const **basename);
-/*%<
- * Split a path into dirname and basename.  If 'path' contains no slash
- * (or, on windows, backslash), then '*dirname' is set to ".".
- *
- * Allocates memory for '*dirname'.
- *
- * Returns:
- * - ISC_R_SUCCESS on success
- * - ISC_R_INVALIDFILE if 'path' is empty or ends with '/'
- * - ISC_R_NOMEMORY if unable to allocate memory
- */
-
-isc_result_t
-isc_file_getsize(const char *file, off_t *size);
-/*%<
- * Return the size of the file (stored in the parameter pointed
- * to by 'size') in bytes.
- *
- * Returns:
- * - ISC_R_SUCCESS on success
- */
-
-isc_result_t
-isc_file_getsizefd(int fd, off_t *size);
-/*%<
- * Return the size of the file (stored in the parameter pointed
- * to by 'size') in bytes.
- *
- * Returns:
- * - ISC_R_SUCCESS on success
- */
-
-void *
-isc_file_mmap(void *addr, size_t len, int prot,
-	      int flags, int fd, off_t offset);
-/*%<
- * Portable front-end to mmap().  If mmap() is not defined on this
- * platform, then we simulate it by calling malloc() and read().
- * (In this event, the addr, prot, and flags parameters are ignored).
- */
-
-int
-isc_file_munmap(void *addr, size_t len);
-/*%<
- * Portable front-end to munmap().  If munmap() is not defined on
- * this platform, then we simply free the memory.
- */
-
-ISC_LANG_ENDDECLS
-
-#endif /* ISC_FILE_H */
diff --git a/usr.sbin/bind/lib/isc/include/isc/fsaccess.h b/usr.sbin/bind/lib/isc/include/isc/fsaccess.h
deleted file mode 100644
index 5187f4ef11b..00000000000
--- a/usr.sbin/bind/lib/isc/include/isc/fsaccess.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: fsaccess.h,v 1.4 2020/01/09 18:17:19 florian Exp $ */
-
-#ifndef ISC_FSACCESS_H
-#define ISC_FSACCESS_H 1
-
-/*! \file isc/fsaccess.h
- * \brief The ISC filesystem access module encapsulates the setting of file
- * and directory access permissions into one API that is meant to be
- * portable to multiple operating systems.
- *
- * The two primary operating system flavors that are initially accommodated
- * are POSIX and Windows NT 4.0 and later.  The Windows NT access model is
- * considerable more flexible than POSIX's model (as much as I am loathe to
- * admit it), and so the ISC API has a higher degree of complexity than would
- * be needed to simply address POSIX's needs.
- *
- * The full breadth of NT's flexibility is not available either, for the
- * present time.  Much of it is to provide compatibility with what Unix
- * programmers are expecting.  This is also due to not yet really needing all
- * of the functionality of an NT system (or, for that matter, a POSIX system)
- * in BIND9, and so resolving how to handle the various incompatibilities has
- * been a purely theoretical exercise with no operational experience to
- * indicate how flawed the thinking may be.
- *
- * Some of the more notable dumbing down of NT for this API includes:
- *
- *\li   Each of FILE_READ_DATA and FILE_READ_EA are set with #ISC_FSACCESS_READ.
- *
- * \li  All of FILE_WRITE_DATA, FILE_WRITE_EA and FILE_APPEND_DATA are
- *     set with #ISC_FSACCESS_WRITE.  FILE_WRITE_ATTRIBUTES is not set
- *     so as to be consistent with Unix, where only the owner of the file
- *     or the superuser can change the attributes/mode of a file.
- *
- * \li  Both of FILE_ADD_FILE and FILE_ADD_SUBDIRECTORY are set with
- *     #ISC_FSACCESS_CREATECHILD.  This is similar to setting the WRITE
- *     permission on a Unix directory.
- *
- * \li  SYNCHRONIZE is always set for files and directories, unless someone
- *     can give me a reason why this is a bad idea.
- *
- * \li  READ_CONTROL and FILE_READ_ATTRIBUTES are always set; this is
- *     consistent with Unix, where any file or directory can be stat()'d
- *     unless the directory path disallows complete access somewhere along
- *     the way.
- *
- * \li  WRITE_DAC is only set for the owner.  This too is consistent with
- *     Unix, and is tighter security than allowing anyone else to be
- *     able to set permissions.
- *
- * \li  DELETE is only set for the owner.  On Unix the ability to delete
- *     a file is controlled by the directory permissions, but it isn't
- *     currently clear to me what happens on NT if the directory has
- *     FILE_DELETE_CHILD set but a file within it does not have DELETE
- *     set.  Always setting DELETE on the file/directory for the owner
- *     gives maximum flexibility to the owner without exposing the
- *     file to deletion by others.
- *
- * \li  WRITE_OWNER is never set.  This too is consistent with Unix,
- *     and is also tighter security than allowing anyone to change the
- *     ownership of the file apart from the superu..ahem, Administrator.
- *
- * \li  Inheritance is set to NO_INHERITANCE.
- *
- * Unix's dumbing down includes:
- *
- * \li  The sticky bit cannot be set.
- *
- * \li  setuid and setgid cannot be set.
- *
- * \li  Only regular files and directories can be set.
- *
- * The rest of this comment discusses a few of the incompatibilities
- * between the two systems that need more thought if this API is to
- * be extended to accommodate them.
- *
- * The Windows standard access right "DELETE" doesn't have a direct
- * equivalent in the Unix world, so it isn't clear what should be done
- * with it.
- *
- * The Unix sticky bit is not supported.  While NT does have a concept
- * of allowing users to create files in a directory but not delete or
- * rename them, it does not have a concept of allowing them to be deleted
- * if they are owned by the user trying to delete/rename.  While it is
- * probable that something could be cobbled together in NT 5 with inheritance,
- * it can't really be done in NT 4 as a single property that you could
- * set on a directory.  You'd need to coordinate something with file creation
- * so that every file created had DELETE set for the owner but noone else.
- *
- * On Unix systems, setting #ISC_FSACCESS_LISTDIRECTORY sets READ.
- * ... setting either #ISC_FSACCESS_CREATECHILD or #ISC_FSACCESS_DELETECHILD
- *      sets WRITE.
- * ... setting #ISC_FSACCESS_ACCESSCHILD sets EXECUTE.
- *
- * On NT systems, setting #ISC_FSACCESS_LISTDIRECTORY sets FILE_LIST_DIRECTORY.
- * ... setting #ISC_FSACCESS_CREATECHILD sets FILE_CREATE_CHILD independently.
- * ... setting #ISC_FSACCESS_DELETECHILD sets FILE_DELETE_CHILD independently.
- * ... setting #ISC_FSACCESS_ACCESSCHILD sets FILE_TRAVERSE.
- *
- * Unresolved:							XXXDCL
- * \li  What NT access right controls the ability to rename a file?
- * \li  How does DELETE work?  If a directory has FILE_DELETE_CHILD but a
- *      file or directory within it does not have DELETE, is that file
- *	or directory deletable?
- * \li  To implement isc_fsaccess_get(), mapping an existing Unix permission
- * 	mode_t back to an isc_fsaccess_t is pretty trivial; however, mapping
- *	an NT DACL could be impossible to do in a responsible way.
- * \li  Similarly, trying to implement the functionality of being able to
- *	say "add group writability to whatever permissions already exist"
- *	could be tricky on NT because of the order-of-entry issue combined
- *	with possibly having one or more matching ACEs already explicitly
- *	granting or denying access.  Because this functionality is
- *	not yet needed by the ISC, no code has been written to try to
- * 	solve this problem.
- */
-
-#include <isc/lang.h>
-#include <isc/types.h>
-
-/*
- * Trustees.
- */
-#define ISC_FSACCESS_OWNER	0x1 /*%< User account. */
-#define ISC_FSACCESS_GROUP	0x2 /*%< Primary group owner. */
-#define ISC_FSACCESS_OTHER	0x4 /*%< Not the owner or the group owner. */
-#define ISC_FSACCESS_WORLD	0x7 /*%< User, Group, Other. */
-
-/*
- * Types of permission.
- */
-#define ISC_FSACCESS_READ		0x00000001 /*%< File only. */
-#define ISC_FSACCESS_WRITE		0x00000002 /*%< File only. */
-#define ISC_FSACCESS_EXECUTE		0x00000004 /*%< File only. */
-#define ISC_FSACCESS_CREATECHILD	0x00000008 /*%< Dir only. */
-#define ISC_FSACCESS_DELETECHILD	0x00000010 /*%< Dir only. */
-#define ISC_FSACCESS_LISTDIRECTORY	0x00000020 /*%< Dir only. */
-#define ISC_FSACCESS_ACCESSCHILD	0x00000040 /*%< Dir only. */
-
-/*%
- * Adding any permission bits beyond 0x200 would mean typedef'ing
- * isc_fsaccess_t as uint64_t, and redefining this value to
- * reflect the new range of permission types, Probably to 21 for
- * maximum flexibility.  The number of bits has to accommodate all of
- * the permission types, and three full sets of them have to fit
- * within an isc_fsaccess_t.
- */
-#define ISC__FSACCESS_PERMISSIONBITS 10
-
-ISC_LANG_BEGINDECLS
-
-void
-isc_fsaccess_add(int trustee, int permission, isc_fsaccess_t *access);
-
-void
-isc_fsaccess_remove(int trustee, int permission, isc_fsaccess_t *access);
-
-isc_result_t
-isc_fsaccess_set(const char *path, isc_fsaccess_t access);
-
-ISC_LANG_ENDDECLS
-
-#endif /* ISC_FSACCESS_H */
diff --git a/usr.sbin/bind/lib/isc/lex.c b/usr.sbin/bind/lib/isc/lex.c
index 4e478b2890f..a3965e3d5cd 100644
--- a/usr.sbin/bind/lib/isc/lex.c
+++ b/usr.sbin/bind/lib/isc/lex.c
@@ -14,7 +14,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: lex.c,v 1.15 2020/01/22 13:02:10 florian Exp $ */
+/* $Id: lex.c,v 1.16 2020/01/26 11:23:42 florian Exp $ */
 
 /*! \file */
 
@@ -25,7 +25,7 @@
 #include <stdlib.h>
 
 #include <isc/buffer.h>
-#include <isc/file.h>
+
 #include <isc/lex.h>
 
 #include <isc/msgs.h>
diff --git a/usr.sbin/bind/lib/isc/log.c b/usr.sbin/bind/lib/isc/log.c
index 9485104809e..65ef138f73f 100644
--- a/usr.sbin/bind/lib/isc/log.c
+++ b/usr.sbin/bind/lib/isc/log.c
@@ -14,7 +14,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: log.c,v 1.21 2020/01/26 11:21:58 florian Exp $ */
+/* $Id: log.c,v 1.22 2020/01/26 11:23:42 florian Exp $ */
 
 /*! \file
  * \author  Principal Authors: DCL */
@@ -29,7 +29,7 @@
 #include <sys/types.h>	/* dev_t FreeBSD 2.1 */
 
 #include <isc/dir.h>
-#include <isc/file.h>
+
 #include <isc/log.h>
 #include <isc/magic.h>
 #include <isc/msgs.h>
diff --git a/usr.sbin/bind/lib/isc/regex.c b/usr.sbin/bind/lib/isc/regex.c
index df73e2fdffd..4344a8b0339 100644
--- a/usr.sbin/bind/lib/isc/regex.c
+++ b/usr.sbin/bind/lib/isc/regex.c
@@ -16,7 +16,7 @@
 
 
 
-#include <isc/file.h>
+
 
 #include <isc/regex.h>
 #include <string.h>
diff --git a/usr.sbin/bind/lib/isc/unix/Makefile.in b/usr.sbin/bind/lib/isc/unix/Makefile.in
index 899ddffd586..0935825bca9 100644
--- a/usr.sbin/bind/lib/isc/unix/Makefile.in
+++ b/usr.sbin/bind/lib/isc/unix/Makefile.in
@@ -28,15 +28,14 @@ CWARNINGS =
 # Alphabetically
 OBJS =		 \
 		app.@O@ dir.@O@ errno.@O@ errno2result.@O@ \
-		file.@O@ fsaccess.@O@ \
 		net.@O@ \
 		socket.@O@ stdio.@O@ stdtime.@O@ \
 		strerror.@O@ time.@O@
 
 # Alphabetically
 SRCS =		@ISC_IPV6_C@ @ISC_PK11_API_C@ \
-		app.c dir.c errno.c errno2result.c file.c \
-		fsaccess.c net.c \
+		app.c dir.c errno.c errno2result.c \
+		net.c \
 		socket.c stdio.c stdtime.c \
 		strerror.c time.c
 
diff --git a/usr.sbin/bind/lib/isc/unix/file.c b/usr.sbin/bind/lib/isc/unix/file.c
deleted file mode 100644
index f6be77670dc..00000000000
--- a/usr.sbin/bind/lib/isc/unix/file.c
+++ /dev/null
@@ -1,661 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * Portions Copyright (c) 1987, 1993
- *      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.
- */
-
-/* $Id: file.c,v 1.15 2020/01/25 10:58:21 deraadt Exp $ */
-
-/*! \file */
-
-
-
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdlib.h>
-#include <time.h>		/* Required for utimes on some platforms. */
-#include <unistd.h>		/* Required for mkstemp on NetBSD. */
-
-
-#include <sys/stat.h>
-#include <sys/time.h>
-
-#include <sys/mman.h>
-
-#include <isc/dir.h>
-#include <isc/file.h>
-#include <isc/log.h>
-
-
-#include <string.h>
-#include <isc/time.h>
-#include <isc/util.h>
-
-#include "errno2result.h"
-
-/*
- * XXXDCL As the API for accessing file statistics undoubtedly gets expanded,
- * it might be good to provide a mechanism that allows for the results
- * of a previous stat() to be used again without having to do another stat,
- * such as perl's mechanism of using "_" in place of a file name to indicate
- * that the results of the last stat should be used.  But then you get into
- * annoying MP issues.   BTW, Win32 has stat().
- */
-static isc_result_t
-file_stats(const char *file, struct stat *stats) {
-	isc_result_t result = ISC_R_SUCCESS;
-
-	REQUIRE(file != NULL);
-	REQUIRE(stats != NULL);
-
-	if (stat(file, stats) != 0)
-		result = isc__errno2result(errno);
-
-	return (result);
-}
-
-static isc_result_t
-fd_stats(int fd, struct stat *stats) {
-	isc_result_t result = ISC_R_SUCCESS;
-
-	REQUIRE(stats != NULL);
-
-	if (fstat(fd, stats) != 0)
-		result = isc__errno2result(errno);
-
-	return (result);
-}
-
-isc_result_t
-isc_file_getsizefd(int fd, off_t *size) {
-	isc_result_t result;
-	struct stat stats;
-
-	REQUIRE(size != NULL);
-
-	result = fd_stats(fd, &stats);
-
-	if (result == ISC_R_SUCCESS)
-		*size = stats.st_size;
-
-	return (result);
-}
-
-isc_result_t
-isc_file_mode(const char *file, mode_t *modep) {
-	isc_result_t result;
-	struct stat stats;
-
-	REQUIRE(modep != NULL);
-
-	result = file_stats(file, &stats);
-	if (result == ISC_R_SUCCESS)
-		*modep = (stats.st_mode & 07777);
-
-	return (result);
-}
-
-isc_result_t
-isc_file_getmodtime(const char *file, isc_time_t *modtime) {
-	isc_result_t result;
-	struct stat stats;
-
-	REQUIRE(file != NULL);
-	REQUIRE(modtime != NULL);
-
-	result = file_stats(file, &stats);
-
-	if (result == ISC_R_SUCCESS)
-		isc_time_set(modtime, stats.st_mtime, stats.st_mtim.tv_nsec);
-
-	return (result);
-}
-
-isc_result_t
-isc_file_getsize(const char *file, off_t *size) {
-	isc_result_t result;
-	struct stat stats;
-
-	REQUIRE(file != NULL);
-	REQUIRE(size != NULL);
-
-	result = file_stats(file, &stats);
-
-	if (result == ISC_R_SUCCESS)
-		*size = stats.st_size;
-
-	return (result);
-}
-
-isc_result_t
-isc_file_settime(const char *file, isc_time_t *when) {
-	struct timeval times[2];
-
-	REQUIRE(file != NULL && when != NULL);
-
-	/*
-	 * tv_sec is at least a 32 bit quantity on all platforms we're
-	 * dealing with, but it is signed on most (all?) of them,
-	 * so we need to make sure the high bit isn't set.  This unfortunately
-	 * loses when either:
-	 *   * tv_sec becomes a signed 64 bit integer but long is 32 bits
-	 *	and isc_time_seconds > LONG_MAX, or
-	 *   * isc_time_seconds is changed to be > 32 bits but long is 32 bits
-	 *      and isc_time_seconds has at least 33 significant bits.
-	 */
-	times[0].tv_sec = times[1].tv_sec = (long)isc_time_seconds(when);
-
-	/*
-	 * Here is the real check for the high bit being set.
-	 */
-	if ((times[0].tv_sec &
-	     (1ULL << (sizeof(times[0].tv_sec) * CHAR_BIT - 1))) != 0)
-		return (ISC_R_RANGE);
-
-	/*
-	 * isc_time_nanoseconds guarantees a value that divided by 1000 will
-	 * fit into the minimum possible size tv_usec field.  Unfortunately,
-	 * we don't know what that type is so can't cast directly ... but
-	 * we can at least cast to signed so the IRIX compiler shuts up.
-	 */
-	times[0].tv_usec = times[1].tv_usec =
-		(int32_t)(isc_time_nanoseconds(when) / 1000);
-
-	if (utimes(file, times) < 0)
-		return (isc__errno2result(errno));
-
-	return (ISC_R_SUCCESS);
-}
-
-#undef TEMPLATE
-#define TEMPLATE "tmp-XXXXXXXXXX" /*%< 14 characters. */
-
-isc_result_t
-isc_file_mktemplate(const char *path, char *buf, size_t buflen) {
-	return (isc_file_template(path, TEMPLATE, buf, buflen));
-}
-
-isc_result_t
-isc_file_template(const char *path, const char *templet, char *buf,
-		  size_t buflen)
-{
-	const char *s;
-
-	REQUIRE(path != NULL);
-	REQUIRE(templet != NULL);
-	REQUIRE(buf != NULL);
-
-	s = strrchr(templet, '/');
-	if (s != NULL)
-		templet = s + 1;
-
-	s = strrchr(path, '/');
-
-	if (s != NULL) {
-		size_t prefixlen = s - path + 1;
-		if ((prefixlen + strlen(templet) + 1) > buflen)
-			return (ISC_R_NOSPACE);
-
-		/* Copy 'prefixlen' bytes and NUL terminate. */
-		strlcpy(buf, path, ISC_MIN(prefixlen + 1, buflen));
-		strlcat(buf, templet, buflen);
-	} else {
-		if ((strlen(templet) + 1) > buflen)
-			return (ISC_R_NOSPACE);
-
-		strlcpy(buf, templet, buflen);
-	}
-
-	return (ISC_R_SUCCESS);
-}
-
-static char alphnum[] =
-	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
-
-isc_result_t
-isc_file_renameunique(const char *file, char *templet) {
-	char *x;
-	char *cp;
-
-	REQUIRE(file != NULL);
-	REQUIRE(templet != NULL);
-
-	cp = templet;
-	while (*cp != '\0')
-		cp++;
-	if (cp == templet)
-		return (ISC_R_FAILURE);
-
-	x = cp--;
-	while (cp >= templet && *cp == 'X') {
-		*cp = alphnum[arc4random_uniform(sizeof(alphnum) - 1)];
-		x = cp--;
-	}
-	while (link(file, templet) == -1) {
-		if (errno != EEXIST)
-			return (isc__errno2result(errno));
-		for (cp = x;;) {
-			const char *t;
-			if (*cp == '\0')
-				return (ISC_R_FAILURE);
-			t = strchr(alphnum, *cp);
-			if (t == NULL || *++t == '\0')
-				*cp++ = alphnum[0];
-			else {
-				*cp = *t;
-				break;
-			}
-		}
-	}
-	if (unlink(file) < 0)
-		if (errno != ENOENT)
-			return (isc__errno2result(errno));
-	return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_file_openunique(char *templet, FILE **fp) {
-	int mode = S_IWUSR|S_IRUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
-	return (isc_file_openuniquemode(templet, mode, fp));
-}
-
-isc_result_t
-isc_file_openuniqueprivate(char *templet, FILE **fp) {
-	int mode = S_IWUSR|S_IRUSR;
-	return (isc_file_openuniquemode(templet, mode, fp));
-}
-
-isc_result_t
-isc_file_openuniquemode(char *templet, int mode, FILE **fp) {
-	int fd;
-	FILE *f;
-	isc_result_t result = ISC_R_SUCCESS;
-	char *x;
-	char *cp;
-
-	REQUIRE(templet != NULL);
-	REQUIRE(fp != NULL && *fp == NULL);
-
-	cp = templet;
-	while (*cp != '\0')
-		cp++;
-	if (cp == templet)
-		return (ISC_R_FAILURE);
-
-	x = cp--;
-	while (cp >= templet && *cp == 'X') {
-		*cp = alphnum[arc4random_uniform(sizeof(alphnum) - 1)];
-		x = cp--;
-	}
-
-
-	while ((fd = open(templet, O_RDWR|O_CREAT|O_EXCL, mode)) == -1) {
-		if (errno != EEXIST)
-			return (isc__errno2result(errno));
-		for (cp = x;;) {
-			char *t;
-			if (*cp == '\0')
-				return (ISC_R_FAILURE);
-			t = strchr(alphnum, *cp);
-			if (t == NULL || *++t == '\0')
-				*cp++ = alphnum[0];
-			else {
-				*cp = *t;
-				break;
-			}
-		}
-	}
-	f = fdopen(fd, "w+");
-	if (f == NULL) {
-		result = isc__errno2result(errno);
-		if (remove(templet) < 0) {
-			isc_log_write(isc_lctx, ISC_LOGCATEGORY_GENERAL,
-				      ISC_LOGMODULE_FILE, ISC_LOG_ERROR,
-				      "remove '%s': failed", templet);
-		}
-		(void)close(fd);
-	} else
-		*fp = f;
-
-	return (result);
-}
-
-isc_result_t
-isc_file_bopenunique(char *templet, FILE **fp) {
-	int mode = S_IWUSR|S_IRUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
-	return (isc_file_openuniquemode(templet, mode, fp));
-}
-
-isc_result_t
-isc_file_bopenuniqueprivate(char *templet, FILE **fp) {
-	int mode = S_IWUSR|S_IRUSR;
-	return (isc_file_openuniquemode(templet, mode, fp));
-}
-
-isc_result_t
-isc_file_bopenuniquemode(char *templet, int mode, FILE **fp) {
-	return (isc_file_openuniquemode(templet, mode, fp));
-}
-
-isc_result_t
-isc_file_remove(const char *filename) {
-	int r;
-
-	REQUIRE(filename != NULL);
-
-	r = unlink(filename);
-	if (r == 0)
-		return (ISC_R_SUCCESS);
-	else
-		return (isc__errno2result(errno));
-}
-
-isc_result_t
-isc_file_rename(const char *oldname, const char *newname) {
-	int r;
-
-	REQUIRE(oldname != NULL);
-	REQUIRE(newname != NULL);
-
-	r = rename(oldname, newname);
-	if (r == 0)
-		return (ISC_R_SUCCESS);
-	else
-		return (isc__errno2result(errno));
-}
-
-isc_boolean_t
-isc_file_exists(const char *pathname) {
-	struct stat stats;
-
-	REQUIRE(pathname != NULL);
-
-	return (ISC_TF(file_stats(pathname, &stats) == ISC_R_SUCCESS));
-}
-
-isc_result_t
-isc_file_isplainfile(const char *filename) {
-	/*
-	 * This function returns success if filename is a plain file.
-	 */
-	struct stat filestat;
-	memset(&filestat,0,sizeof(struct stat));
-
-	if ((stat(filename, &filestat)) == -1)
-		return(isc__errno2result(errno));
-
-	if(! S_ISREG(filestat.st_mode))
-		return(ISC_R_INVALIDFILE);
-
-	return(ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_file_isplainfilefd(int fd) {
-	/*
-	 * This function returns success if filename is a plain file.
-	 */
-	struct stat filestat;
-	memset(&filestat,0,sizeof(struct stat));
-
-	if ((fstat(fd, &filestat)) == -1)
-		return(isc__errno2result(errno));
-
-	if(! S_ISREG(filestat.st_mode))
-		return(ISC_R_INVALIDFILE);
-
-	return(ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_file_isdirectory(const char *filename) {
-	/*
-	 * This function returns success if filename exists and is a
-	 * directory.
-	 */
-	struct stat filestat;
-	memset(&filestat,0,sizeof(struct stat));
-
-	if ((stat(filename, &filestat)) == -1)
-		return(isc__errno2result(errno));
-
-	if(! S_ISDIR(filestat.st_mode))
-		return(ISC_R_INVALIDFILE);
-
-	return(ISC_R_SUCCESS);
-}
-
-
-isc_boolean_t
-isc_file_isabsolute(const char *filename) {
-	REQUIRE(filename != NULL);
-	return (ISC_TF(filename[0] == '/'));
-}
-
-isc_boolean_t
-isc_file_iscurrentdir(const char *filename) {
-	REQUIRE(filename != NULL);
-	return (ISC_TF(filename[0] == '.' && filename[1] == '\0'));
-}
-
-isc_boolean_t
-isc_file_ischdiridempotent(const char *filename) {
-	REQUIRE(filename != NULL);
-	if (isc_file_isabsolute(filename))
-		return (ISC_TRUE);
-	if (isc_file_iscurrentdir(filename))
-		return (ISC_TRUE);
-	return (ISC_FALSE);
-}
-
-const char *
-isc_file_basename(const char *filename) {
-	const char *s;
-
-	REQUIRE(filename != NULL);
-
-	s = strrchr(filename, '/');
-	if (s == NULL)
-		return (filename);
-
-	return (s + 1);
-}
-
-isc_result_t
-isc_file_progname(const char *filename, char *buf, size_t buflen) {
-	const char *base;
-	size_t len;
-
-	REQUIRE(filename != NULL);
-	REQUIRE(buf != NULL);
-
-	base = isc_file_basename(filename);
-	len = strlen(base) + 1;
-
-	if (len > buflen)
-		return (ISC_R_NOSPACE);
-	memmove(buf, base, len);
-
-	return (ISC_R_SUCCESS);
-}
-
-/*
- * Put the absolute name of the current directory into 'dirname', which is
- * a buffer of at least 'length' characters.  End the string with the
- * appropriate path separator, such that the final product could be
- * concatenated with a relative pathname to make a valid pathname string.
- */
-static isc_result_t
-dir_current(char *dirname, size_t length) {
-	char *cwd;
-	isc_result_t result = ISC_R_SUCCESS;
-
-	REQUIRE(dirname != NULL);
-	REQUIRE(length > 0U);
-
-	cwd = getcwd(dirname, length);
-
-	if (cwd == NULL) {
-		if (errno == ERANGE) {
-			result = ISC_R_NOSPACE;
-		} else {
-			result = isc__errno2result(errno);
-		}
-	} else {
-		if (strlen(dirname) + 1 == length) {
-			result = ISC_R_NOSPACE;
-		} else if (dirname[1] != '\0') {
-			strlcat(dirname, "/", length);
-		}
-	}
-
-	return (result);
-}
-
-isc_result_t
-isc_file_absolutepath(const char *filename, char *path, size_t pathlen) {
-	isc_result_t result;
-	result = dir_current(path, pathlen);
-	if (result != ISC_R_SUCCESS)
-		return (result);
-	if (strlen(path) + strlen(filename) + 1 > pathlen)
-		return (ISC_R_NOSPACE);
-	strlcat(path, filename, pathlen);
-	return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_file_truncate(const char *filename, isc_offset_t size) {
-	isc_result_t result = ISC_R_SUCCESS;
-
-	if (truncate(filename, size) < 0)
-		result = isc__errno2result(errno);
-	return (result);
-}
-
-isc_result_t
-isc_file_safecreate(const char *filename, FILE **fp) {
-	isc_result_t result;
-	int flags;
-	struct stat sb;
-	FILE *f;
-	int fd;
-
-	REQUIRE(filename != NULL);
-	REQUIRE(fp != NULL && *fp == NULL);
-
-	result = file_stats(filename, &sb);
-	if (result == ISC_R_SUCCESS) {
-		if ((sb.st_mode & S_IFREG) == 0)
-			return (ISC_R_INVALIDFILE);
-		flags = O_WRONLY | O_TRUNC;
-	} else if (result == ISC_R_FILENOTFOUND) {
-		flags = O_WRONLY | O_CREAT | O_EXCL;
-	} else
-		return (result);
-
-	fd = open(filename, flags, S_IRUSR | S_IWUSR);
-	if (fd == -1)
-		return (isc__errno2result(errno));
-
-	f = fdopen(fd, "w");
-	if (f == NULL) {
-		result = isc__errno2result(errno);
-		close(fd);
-		return (result);
-	}
-
-	*fp = f;
-	return (ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_file_splitpath(const char *path, char **dirname,
-		   char const **bname)
-{
-	char *dir;
-	const char *file, *slash;
-
-	if (path == NULL)
-		return (ISC_R_INVALIDFILE);
-
-	slash = strrchr(path, '/');
-
-	if (slash == path) {
-		file = ++slash;
-		dir = strdup("/");
-	} else if (slash != NULL) {
-		file = ++slash;
-		dir = malloc(slash - path);
-		if (dir != NULL)
-			strlcpy(dir, path, slash - path);
-	} else {
-		file = path;
-		dir = strdup(".");
-	}
-
-	if (dir == NULL)
-		return (ISC_R_NOMEMORY);
-
-	if (*file == '\0') {
-		free(dir);
-		return (ISC_R_INVALIDFILE);
-	}
-
-	*dirname = dir;
-	*bname = file;
-
-	return (ISC_R_SUCCESS);
-}
-
-void *
-isc_file_mmap(void *addr, size_t len, int prot,
-	      int flags, int fd, off_t offset)
-{
-	return (mmap(addr, len, prot, flags, fd, offset));
-}
-
-int
-isc_file_munmap(void *addr, size_t len) {
-	return (munmap(addr, len));
-}
diff --git a/usr.sbin/bind/lib/isc/unix/fsaccess.c b/usr.sbin/bind/lib/isc/unix/fsaccess.c
deleted file mode 100644
index f1fe7e72537..00000000000
--- a/usr.sbin/bind/lib/isc/unix/fsaccess.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: fsaccess.c,v 1.7 2020/01/22 13:02:10 florian Exp $ */
-
-
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <errno.h>
-
-#include "errno2result.h"
-
-/*! \file
- * \brief
- * The OS-independent part of the API is in lib/isc.
- */
-#include "../fsaccess.c"
-
-isc_result_t
-isc_fsaccess_set(const char *path, isc_fsaccess_t access) {
-	struct stat statb;
-	mode_t mode;
-	isc_boolean_t is_dir = ISC_FALSE;
-	isc_fsaccess_t bits;
-	isc_result_t result;
-
-	if (stat(path, &statb) != 0)
-		return (isc__errno2result(errno));
-
-	if ((statb.st_mode & S_IFDIR) != 0)
-		is_dir = ISC_TRUE;
-	else if ((statb.st_mode & S_IFREG) == 0)
-		return (ISC_R_INVALIDFILE);
-
-	result = check_bad_bits(access, is_dir);
-	if (result != ISC_R_SUCCESS)
-		return (result);
-
-	/*
-	 * Done with checking bad bits.  Set mode_t.
-	 */
-	mode = 0;
-
-#define SET_AND_CLEAR1(modebit) \
-	if ((access & bits) != 0) { \
-		mode |= modebit; \
-		access &= ~bits; \
-	}
-#define SET_AND_CLEAR(user, group, other) \
-	SET_AND_CLEAR1(user); \
-	bits <<= STEP; \
-	SET_AND_CLEAR1(group); \
-	bits <<= STEP; \
-	SET_AND_CLEAR1(other);
-
-	bits = ISC_FSACCESS_READ | ISC_FSACCESS_LISTDIRECTORY;
-
-	SET_AND_CLEAR(S_IRUSR, S_IRGRP, S_IROTH);
-
-	bits = ISC_FSACCESS_WRITE |
-	       ISC_FSACCESS_CREATECHILD |
-	       ISC_FSACCESS_DELETECHILD;
-
-	SET_AND_CLEAR(S_IWUSR, S_IWGRP, S_IWOTH);
-
-	bits = ISC_FSACCESS_EXECUTE |
-	       ISC_FSACCESS_ACCESSCHILD;
-
-	SET_AND_CLEAR(S_IXUSR, S_IXGRP, S_IXOTH);
-
-	INSIST(access == 0);
-
-	if (chmod(path, mode) < 0)
-		return (isc__errno2result(errno));
-
-	return (ISC_R_SUCCESS);
-}