Merge "Revert "audit use of net.dns. property""
diff --git a/Android.mk b/Android.mk
index ab88003..45dd30b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1080,7 +1080,7 @@
   $(HOST_OUT_EXECUTABLES)/fc_sort $(HOST_OUT_EXECUTABLES)/checkfc
 	@mkdir -p $(dir $@)
 	$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -e $(PRIVATE_SEPOLICY) $<
-	$(hide) $(HOST_OUT_EXECUTABLES)/fc_sort $< $@
+	$(hide) $(HOST_OUT_EXECUTABLES)/fc_sort -i $< -o $@
 
 file_contexts.concat.tmp := $(intermediates)/file_contexts.concat.tmp
 $(file_contexts.concat.tmp): $(file_contexts.local.tmp) $(file_contexts.device.sorted.tmp)
diff --git a/file_contexts.mk b/file_contexts.mk
index 267b68f..ec8d4ea 100644
--- a/file_contexts.mk
+++ b/file_contexts.mk
@@ -32,7 +32,7 @@
 	@mkdir -p $(dir $@)
 	$(hide) m4 --fatal-warnings -s $(PRIVATE_FC_FILES) > $@.tmp
 	$(hide) $< $(PRIVATE_SEPOLICY) $@.tmp
-	$(hide) $(PRIVATE_FC_SORT) $@.tmp $@
+	$(hide) $(PRIVATE_FC_SORT) -i $@.tmp -o $@
 
 built_plat_fc := $(LOCAL_BUILT_MODULE)
 local_fc_files :=
@@ -60,7 +60,7 @@
 	@mkdir -p $(dir $@)
 	$(hide) m4 --fatal-warnings -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_FC_FILES) > $@.tmp
 	$(hide) $< $(PRIVATE_SEPOLICY) $@.tmp
-	$(hide) $(PRIVATE_FC_SORT) $@.tmp $@
+	$(hide) $(PRIVATE_FC_SORT) -i $@.tmp -o $@
 
 built_product_fc := $(LOCAL_BUILT_MODULE)
 product_fc_files :=
@@ -88,7 +88,7 @@
 	@mkdir -p $(dir $@)
 	$(hide) m4 --fatal-warnings -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_FC_FILES) > $@.tmp
 	$(hide) $< $(PRIVATE_SEPOLICY) $@.tmp
-	$(hide) $(PRIVATE_FC_SORT) $@.tmp $@
+	$(hide) $(PRIVATE_FC_SORT) -i $@.tmp -o $@
 
 built_vendor_fc := $(LOCAL_BUILT_MODULE)
 vendor_fc_files :=
@@ -116,7 +116,7 @@
 	@mkdir -p $(dir $@)
 	$(hide) m4 --fatal-warnings -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_FC_FILES) > $@.tmp
 	$(hide) $< $(PRIVATE_SEPOLICY) $@.tmp
-	$(hide) $(PRIVATE_FC_SORT) $@.tmp $@
+	$(hide) $(PRIVATE_FC_SORT) -i $@.tmp -o $@
 
 built_odm_fc := $(LOCAL_BUILT_MODULE)
 odm_fc_files :=
diff --git a/private/dumpstate.te b/private/dumpstate.te
index e33d510..4f6d96a 100644
--- a/private/dumpstate.te
+++ b/private/dumpstate.te
@@ -37,6 +37,7 @@
 # Signal native processes to dump their stack.
 allow dumpstate {
   statsd
+  netd
 }:process signal;
 
 # For collecting bugreports.
diff --git a/private/netd.te b/private/netd.te
index 0421d4a..a00cb69 100644
--- a/private/netd.te
+++ b/private/netd.te
@@ -20,3 +20,6 @@
 # Allow netd to send callbacks to network_stack
 binder_call(netd, network_stack)
 
+# Allow netd to send dump info to dumpstate
+allow netd dumpstate:fd use;
+allow netd dumpstate:fifo_file { getattr write };
diff --git a/tests/Android.bp b/tests/Android.bp
index a7d7023..d27f333 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -33,7 +33,7 @@
 python_binary_host {
     name: "treble_sepolicy_tests",
     srcs: [
-        "FcSort.py",
+        "fc_sort.py",
         "mini_parser.py",
         "policy.py",
         "treble_sepolicy_tests.py",
@@ -45,7 +45,7 @@
 python_binary_host {
     name: "sepolicy_tests",
     srcs: [
-        "FcSort.py",
+        "fc_sort.py",
         "policy.py",
         "sepolicy_tests.py",
     ],
@@ -56,7 +56,7 @@
 python_binary_host {
     name: "searchpolicy",
     srcs: [
-        "FcSort.py",
+        "fc_sort.py",
         "policy.py",
         "searchpolicy.py",
     ],
@@ -72,3 +72,11 @@
     ],
     defaults: ["py2_only"],
 }
+
+python_binary_host {
+    name: "fc_sort",
+    srcs: [
+        "fc_sort.py",
+    ],
+    defaults: ["py2_only"],
+}
diff --git a/tests/FcSort.py b/tests/fc_sort.py
similarity index 80%
rename from tests/FcSort.py
rename to tests/fc_sort.py
index 7cf1998..cbb0e5e 100755
--- a/tests/FcSort.py
+++ b/tests/fc_sort.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 import sys
 import os
+import argparse
 
 class FileContextsNode:
     path = None
@@ -11,7 +12,8 @@
     stemLen = None
     strLen = None
     Type = None
-    def __init__(self, path, fileType, context, meta, stemLen, strLen):
+    line = None
+    def __init__(self, path, fileType, context, meta, stemLen, strLen, line):
         self.path = path
         self.fileType = fileType
         self.context = context
@@ -19,6 +21,7 @@
         self.stemLen = stemLen
         self.strlen = strLen
         self.Type = context.split(":")[2]
+        self.line = line
 
 metaChars = frozenset(['.', '^', '$', '?', '*', '+', '|', '[', '(', '{'])
 escapedMetaChars = frozenset(['\.', '\^', '\$', '\?', '\*', '\+', '\|', '\[', '\(', '\{'])
@@ -65,7 +68,7 @@
     stemLen = getStemLen(path)
     strLen = len(path.replace("\\", ""))
 
-    return FileContextsNode(path, fileType, context, meta, stemLen, strLen)
+    return FileContextsNode(path, fileType, context, meta, stemLen, strLen, line)
 
 def ReadFileContexts(files):
     fc = []
@@ -118,8 +121,22 @@
 
     return Fc
 
-if __name__ == '__main__':
-    if len(sys.argv) < 2:
-        sys.exit("Usage: fc_sort.py <file_contexts 1> <file_contexts 2> <file_contexts 3>")
+def PrintFc(Fc, out):
+    if not out:
+        f = sys.stdout
+    else:
+        f = open(out, "w")
+    for node in Fc:
+        f.write(node.line + "\n")
 
-    FcSorted = FcSort(sys.argv[1:])
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description="SELinux file_contexts sorting tool.")
+    parser.add_argument("-i", dest="input", help="Path to the file_contexts file(s).", nargs="?", action='append')
+    parser.add_argument("-o", dest="output", help="Path to the output file", nargs=1)
+    args = parser.parse_args()
+    if not args.input:
+        parser.error("Must include path to policy")
+    if not not args.output:
+        args.output = args.output[0]
+
+    PrintFc(FcSort(args.input),args.output)
diff --git a/tests/policy.py b/tests/policy.py
index 90e387f..0f51e2f 100644
--- a/tests/policy.py
+++ b/tests/policy.py
@@ -3,7 +3,7 @@
 import os
 import sys
 import platform
-import FcSort
+import fc_sort
 
 ###
 # Check whether the regex will match a file path starting with the provided
@@ -413,7 +413,7 @@
                     self.__FcDict[t] = [rec[0]]
             except:
                 pass
-        self.__FcSorted = FcSort.FcSort(FcPaths)
+        self.__FcSorted = fc_sort.FcSort(FcPaths)
 
     # load policy
     def __InitPolicy(self, PolicyPath):
diff --git a/tools/fc_sort/Android.bp b/tools/fc_sort/Android.bp
deleted file mode 100644
index d0a391b..0000000
--- a/tools/fc_sort/Android.bp
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-cc_binary_host {
-    name: "fc_sort",
-    srcs: ["fc_sort.c"],
-    stl: "none",
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
-}
diff --git a/tools/fc_sort/MODULE_LICENSE_GPL b/tools/fc_sort/MODULE_LICENSE_GPL
deleted file mode 100644
index e69de29..0000000
--- a/tools/fc_sort/MODULE_LICENSE_GPL
+++ /dev/null
diff --git a/tools/fc_sort/NOTICE b/tools/fc_sort/NOTICE
deleted file mode 100644
index 5b6e7c6..0000000
--- a/tools/fc_sort/NOTICE
+++ /dev/null
@@ -1,340 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
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-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
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-gratis or for a fee, you must give the recipients all the rights that
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-(2) offer you this license which gives you legal permission to copy,
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-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-		    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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-a notice placed by the copyright holder saying it may be distributed
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-
-	    How to Apply These Terms to Your New Programs
-
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diff --git a/tools/fc_sort/README b/tools/fc_sort/README
deleted file mode 100644
index 0210dc7..0000000
--- a/tools/fc_sort/README
+++ /dev/null
@@ -1,9 +0,0 @@
-fc_sort is a tool used for sorting the file_contexts entries based on a heuristic that is
- covered by a Fedora document. That document can be found here:
- * https://fedoraproject.org/wiki/SELinux/ManagingFileContext
-
-The tool itself originates from:
- * https://github.com/TresysTechnology/refpolicy
-
-It can be updated to the current tip of master branch with the below command:
-$ wget https://raw.githubusercontent.com/TresysTechnology/refpolicy/master/support/fc_sort.c
diff --git a/tools/fc_sort/fc_sort.c b/tools/fc_sort/fc_sort.c
deleted file mode 100644
index a8a8efd..0000000
--- a/tools/fc_sort/fc_sort.c
+++ /dev/null
@@ -1,597 +0,0 @@
-/* Copyright 2005,2013 Tresys Technology
- *
- * Some parts of this came from matchpathcon.c in libselinux
- */
-
-/* PURPOSE OF THIS PROGRAM
- * The original setfiles sorting algorithm did not take into
- * account regular expression specificity. With the current
- * strict and targeted policies this is not an issue because
- * the file contexts are partially hand sorted and concatenated
- * in the right order so that the matches are generally correct.
- * The way reference policy and loadable policy modules handle
- * file contexts makes them come out in an unpredictable order
- * and therefore setfiles (or this standalone tool) need to sort
- * the regular expressions in a deterministic and stable way.
- */
-
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-
-typedef unsigned char bool_t;
-
-/* file_context_node
- * A node used in a linked list of file contexts.c
- * Each node contains the regular expression, the type and
- *  the context, as well as information about the regular
- *  expression. The regular expression data (meta, stem_len
- *  and str_len) can be filled in by using the fc_fill_data
- *  function after the regular expression has been loaded.
- * next points to the next node in the linked list.
- */
-typedef struct file_context_node {
-	char *path;
-	char *file_type;
-	char *context;
-	char *extra;
-	bool_t meta;
-	int stem_len;
-	int str_len;
-	struct file_context_node *next;
-} file_context_node_t;
-
-void file_context_node_destroy(file_context_node_t *x)
-{
-	if (!x)
-		return;
-
-	free(x->path);
-	free(x->file_type);
-	free(x->context);
-}
-
-
-
-/* file_context_bucket
- * A node used in a linked list of buckets that contain
- *  file_context_node's.
- * Each node contains a pointer to a file_context_node which
- *  is the header of its linked list. This linked list is the
- *  content of this bucket.
- * next points to the next bucket in the linked list.
- */
-typedef struct file_context_bucket {
-	file_context_node_t *data;
-	struct file_context_bucket *next;
-} file_context_bucket_t;
-
-
-
-/* fc_compare
- * Compares two file contexts' regular expressions and returns:
- *    -1 if a is less specific than b
- *     1 if a is more specific than b
- * The comparison is based on the following statements,
- *  in order from most important to least important, given a and b:
- *     If a is a regular expression and b is not,
- *      -> a is less specific than b.
- *     If a's stem length is shorter than b's stem length,
- *      -> a is less specific than b.
- *     If a's string length is shorter than b's string length,
- *      -> a is less specific than b.
- *     If a does not have a specified type and b does,
- *      -> a is less specific than b.
- *     If none of above are satified,
- *      -> a and b are equally specific. In this case,
- *       lexicographically compares a and b.
- */
-int fc_compare(file_context_node_t *a, file_context_node_t *b)
-{
-	/* Check to see if either a or b have meta characters
-	 *  and the other doesn't. */
-	if (a->meta && !b->meta)
-		return -1;
-	if (b->meta && !a->meta)
-		return 1;
-
-	/* Check to see if either a or b have a shorter stem
-	 *  length than the other. */
-	if (a->stem_len < b->stem_len)
-		return -1;
-	if (b->stem_len < a->stem_len)
-		return 1;
-
-	/* Check to see if either a or b have a shorter string
-	 *  length than the other. */
-	if (a->str_len < b->str_len)
-		return -1;
-	if (b->str_len < a->str_len)
-		return 1;
-
-	/* Check to see if either a or b has a specified type
-	 *  and the other doesn't. */
-	if (!a->file_type && b->file_type)
-		return -1;
-	if (!b->file_type && a->file_type)
-		return 1;
-
-	/* If none of the above conditions were satisfied,
-	 * then a and b are equally specific. In this case,
-	 * performs lexicographical comparison to sort
-	 * deterministically and stably. */
-	return strcmp(a->path, b->path);
-}
-
-
-
-/* fc_merge
- * Merges two sorted file context linked lists into one
- *  sorted one.
- */
-file_context_node_t *fc_merge(file_context_node_t *a,
-				   file_context_node_t *b)
-{
-	file_context_node_t head = {};
-	file_context_node_t *next = &head;
-
-	while (a && b) {
-		if (fc_compare(a, b) <= 0) {
-			next->next = a;
-			a = a->next;
-			next->next->next = NULL;
-		} else {
-			next->next = b;
-			b = b->next;
-			next->next->next = NULL;
-		}
-		next = next->next;
-	}
-
-	if (a) {
-		next->next = a;
-	} else if (b) {
-		next->next = b;
-	}
-
-	return head.next;
-}
-
-
-
-/* fc_merge_sort
- * Sorts file contexts from least specific to more specific.
- * The bucket linked list is passed and after the completion
- *  of the fc_merge_sort function, there is only one bucket
- *  (pointed to by master) that contains a linked list
- *  of all the file contexts, in sorted order.
- * Explanation of the algorithm:
- *  The algorithm implemented in fc_merge_sort is an iterative
- *   implementation of merge sort.
- *  At first, each bucket has a linked list of file contexts
- *   that are 1 element each.
- *  Each pass, each odd numbered bucket is merged into the bucket
- *   before it. This halves the number of buckets each pass.
- *  It will continue passing over the buckets (as described above)
- *   until there is only  one bucket left, containing the list of
- *   file contexts, sorted.
- */
-void fc_merge_sort(file_context_bucket_t *master)
-{
-	file_context_bucket_t *current;
-	file_context_bucket_t *temp;
-
-	if (!master)
-		return;
-
-	/* Loop until master is the only bucket left
-	 * so that this will stop when master contains
-	 * the sorted list. */
-	while (master->next) {
-		current = master;
-
-		/* This loop merges buckets two-by-two. */
-		while (current) {
-			if (current->next) {
-				current->data =
-				    fc_merge(current->data,
-					     current->next->data);
-
-				temp = current->next;
-				current->next = current->next->next;
-
-				free(temp);
-			}
-
-			current = current->next;
-		}
-	}
-}
-
-
-
-/* fc_fill_data
- * This processes a regular expression in a file context
- *  and sets the data held in file_context_node, namely
- *  meta, str_len and stem_len.
- * The following changes are made to fc_node after the
- *  the completion of the function:
- *     fc_node->meta =		1 if path has a meta character, 0 if not.
- *     fc_node->str_len =	The string length of the entire path
- *     fc_node->stem_len = 	The number of characters up until
- *				 the first meta character.
- */
-void fc_fill_data(file_context_node_t *fc_node)
-{
-	int c = 0;
-
-	fc_node->meta = 0;
-	fc_node->stem_len = 0;
-	fc_node->str_len = 0;
-
-	/* Process until the string termination character
-	 *  has been reached.
-	 * Note: this while loop has been adapted from
-	 *  spec_hasMetaChars in matchpathcon.c from
-	 *  libselinux-1.22. */
-	while (fc_node->path[c] != '\0') {
-		switch (fc_node->path[c]) {
-		case '.':
-		case '^':
-		case '$':
-		case '?':
-		case '*':
-		case '+':
-		case '|':
-		case '[':
-		case '(':
-		case '{':
-			/* If a meta character is found,
-			 *  set meta to one */
-			fc_node->meta = 1;
-			break;
-		case '\\':
-			/* If a escape character is found,
-			 *  skip the next character. */
-			c++;
-			break;
-		default:
-			break;
-		}
-
-		/* If no meta character has been found yet,
-		 * add one to the stem length. */
-		if (!fc_node->meta)
-			fc_node->stem_len++;
-
-		fc_node->str_len++;
-		c++;
-	}
-}
-
-
-
-/* fc_free_file_context_node_list
- * Free the memory allocated to the linked list and its elements.
- */
-void fc_free_file_context_node_list(struct file_context_node *node)
-{
-	struct file_context_node *next;
-
-	while (node) {
-		next = node->next;
-		file_context_node_destroy(node);
-		free(node);
-		node = next;
-	}
-}
-
-
-
-/* main
- * This program takes in two arguments, the input filename and the
- *  output filename. The input file should be syntactically correct.
- * Overall what is done in the main is read in the file and store each
- *  line of code, sort it, then output it to the output file.
- */
-int main(int argc, char *argv[])
-{
-	int lines;
-	size_t start, finish, regex_len, context_len;
-	size_t line_len, buf_len, i;
-	char *input_name, *output_name, *line_buf;
-
-	file_context_node_t *temp;
-	file_context_node_t *head;
-	file_context_node_t *current;
-	file_context_bucket_t *master;
-	file_context_bucket_t *bcurrent;
-
-	FILE *in_file, *out_file;
-
-	/* Check for the correct number of command line arguments. */
-	if (argc < 2 || argc > 3) {
-		fprintf(stderr, "Usage: %s <infile> [<outfile>]\n",argv[0]);
-		return 1;
-	}
-
-	input_name = argv[1];
-	output_name = (argc >= 3) ? argv[2] : NULL;
-
-	lines = 0;
-
-	/* Open the input file. */
-	if (!(in_file = fopen(input_name, "r"))) {
-		fprintf(stderr, "Error: failure opening input file for read.\n");
-		return 1;
-	}
-
-	/* Initialize the head of the linked list. */
-	head = current = (file_context_node_t*)calloc(1, sizeof(file_context_node_t));
-	if (!head) {
-		fprintf(stderr, "Error: failure allocating memory.\n");
-		return 1;
-	}
-
-	/* Parse the file into a file_context linked list. */
-	line_buf = NULL;
-
-	while ( getline(&line_buf, &buf_len, in_file) != -1 ){
-		line_len = strlen(line_buf);
-
-		if( line_len == 0 || line_len == 1)
-			continue;
-
-		/* Get rid of whitespace from the front of the line. */
-		for (i = 0; i < line_len; i++) {
-			if (!isspace(line_buf[i]))
-				break;
-		}
-
-		if (i >= line_len)
-			continue;
-
-		/* Check if the line isn't empty and isn't a comment */
-		if (line_buf[i] == '#')
-			continue;
-
-		/* We have a valid line - allocate a new node. */
-		temp = (file_context_node_t *)calloc(1, sizeof(file_context_node_t));
-		if (!temp) {
-			free(line_buf);
-			fprintf(stderr, "Error: failure allocating memory.\n");
-			fc_free_file_context_node_list(head);
-			return 1;
-		}
-
-		/* Parse out the regular expression from the line. */
-		start = i;
-
-		while (i < line_len && (!isspace(line_buf[i])))
-			i++;
-		finish = i;
-
-		regex_len = finish - start;
-
-		if (regex_len == 0) {
-			file_context_node_destroy(temp);
-			free(temp);
-			continue;
-		}
-
-		temp->path = (char*)strndup(&line_buf[start], regex_len);
-		if (!temp->path) {
-			file_context_node_destroy(temp);
-			free(temp);
-			free(line_buf);
-			fprintf(stderr, "Error: failure allocating memory.\n");
-			fc_free_file_context_node_list(head);
-			return 1;
-		}
-
-		/* Get rid of whitespace after the regular expression. */
-		for (; i < line_len; i++) {
-			if (!isspace(line_buf[i]))
-				break;
-		}
-
-		if (i == line_len) {
-			file_context_node_destroy(temp);
-			free(temp);
-			continue;
-		}
-
-		/* Parse out the type from the line (if it
-		 * is there). */
-		if (line_buf[i] == '-') {
-			temp->file_type = (char *)malloc(sizeof(char) * 3);
-			if (!(temp->file_type)) {
-				file_context_node_destroy(temp);
-				free(temp);
-				free(line_buf);
-				fprintf(stderr, "Error: failure allocating memory.\n");
-				fc_free_file_context_node_list(head);
-				return 1;
-			}
-
-			if( i + 2 >= line_len ) {
-				file_context_node_destroy(temp);
-				free(temp);
-				continue;
-			}
-
-			/* Fill the type into the array. */
-			temp->file_type[0] = line_buf[i];
-			temp->file_type[1] = line_buf[i + 1];
-			i += 2;
-			temp->file_type[2] = 0;
-
-			/* Get rid of whitespace after the type. */
-			for (; i < line_len; i++) {
-				if (!isspace(line_buf[i]))
-					break;
-			}
-
-			if (i == line_len) {
-				file_context_node_destroy(temp);
-				free(temp);
-				continue;
-			}
-		}
-
-		/* Parse out the context from the line. */
-		start = i;
-		while (i < line_len && (!isspace(line_buf[i])))
-			i++;
-		finish = i;
-
-		context_len = finish - start;
-
-		temp->context = (char*)strndup(&line_buf[start], context_len);
-		if (!temp->context) {
-			file_context_node_destroy(temp);
-			free(temp);
-			free(line_buf);
-			fprintf(stderr, "Error: failure allocating memory.\n");
-			fc_free_file_context_node_list(head);
-			return 1;
-		}
-
-		/* Get rid of whitespace after the context. */
-		for (; i < line_len; i++) {
-			if (!isspace(line_buf[i]))
-				break;
-		}
-
-		/* Parse out the extra from the line. */
-		start = i;
-		finish = line_len;
-		while (start < finish && (!isspace(line_buf[i - 1])))
-			finish--;
-
-		if (start < finish && line_buf[start] != '#') {
-			temp->extra = (char*)strndup(&line_buf[start], finish - start);
-			if (!(temp->extra)) {
-				file_context_node_destroy(temp);
-				free(temp);
-				free(line_buf);
-				fprintf(stderr, "Error: failure allocating memory.\n");
-				fc_free_file_context_node_list(head);
-				return 1;
-			}
-		}
-
-		/* Set all the data about the regular
-		 * expression. */
-		fc_fill_data(temp);
-
-		/* Link this line of code at the end of
-		 * the linked list. */
-		current->next = temp;
-		current = current->next;
-		lines++;
-	}
-	free(line_buf);
-	fclose(in_file);
-
-	/* Create the bucket linked list from the earlier linked list. */
-	current = head->next;
-	bcurrent = master =
-	    (file_context_bucket_t *)
-	    malloc(sizeof(file_context_bucket_t));
-	if (!bcurrent) {
-		printf
-		    ("Error: failure allocating memory.\n");
-		fc_free_file_context_node_list(head);
-		return -1;
-	}
-	bcurrent->next = NULL;
-	bcurrent->data = NULL;
-
-	/* Go until all the nodes have been put in individual buckets. */
-	while (current) {
-		/* Copy over the file context line into the bucket. */
-		bcurrent->data = current;
-		current = current->next;
-
-		/* Detach the node in the bucket from the old list. */
-		bcurrent->data->next = NULL;
-
-		/* If there should be another bucket, put one at the end. */
-		if (current) {
-			bcurrent->next =
-			    (file_context_bucket_t *)
-			    malloc(sizeof(file_context_bucket_t));
-			if (!(bcurrent->next)) {
-				printf
-				    ("Error: failure allocating memory.\n");
-				free(head);
-				fc_free_file_context_node_list(current);
-				fc_merge_sort(master);
-				fc_free_file_context_node_list(master->data);
-				free(master);
-				return -1;
-			}
-
-			/* Make sure the new bucket thinks it's the end of the
-			 * list. */
-			bcurrent->next->next = NULL;
-
-			bcurrent = bcurrent->next;
-		}
-	}
-
-	/* Sort the bucket list. */
-	fc_merge_sort(master);
-
-	free(head);
-
-	/* Open the output file. */
-	if (output_name) {
-		if (!(out_file = fopen(output_name, "w"))) {
-			printf("Error: failure opening output file for write.\n");
-			fc_free_file_context_node_list(master->data);
-			free(master);
-			return -1;
-		}
-	} else {
-		out_file = stdout;
-	}
-
-	/* Output the sorted file_context linked list to the output file. */
-	current = master->data;
-
-	while (current) {
-		/* Output the path. */
-		fprintf(out_file, "%s\t\t", current->path);
-
-		/* Output the type, if there is one. */
-		if (current->file_type) {
-			fprintf(out_file, "%s\t", current->file_type);
-		}
-
-		/* Output the context. */
-		fprintf(out_file, "%s", current->context);
-
-		/* Output the extra, if there is one. */
-		if (current->extra) {
-			fprintf(out_file, "\t%s", current->extra);
-		}
-
-		fprintf(out_file, "\n");
-
-		current = current->next;
-	}
-
-	fc_free_file_context_node_list(master->data);
-	free(master);
-
-	if (output_name) {
-		fclose(out_file);
-	}
-
-	return 0;
-}