diff -up patch-2.7.6/src/common.h.selinux patch-2.7.6/src/common.h

--- patch-2.7.6/src/common.h.selinux	2018-02-03 12:41:49.000000000 +0000

+++ patch-2.7.6/src/common.h	2018-02-12 12:29:44.415225377 +0000

@@ -30,6 +30,8 @@

 #include <sys/types.h>

 #include <time.h>

+#include <selinux/selinux.h>

+

 #include <sys/stat.h>

 #include <limits.h>

@@ -84,6 +86,7 @@ XTERN char *outfile;

 XTERN int inerrno;

 XTERN int invc;

 XTERN struct stat instat;

+XTERN security_context_t incontext;

 XTERN bool dry_run;

 XTERN bool posixly_correct;

diff -up patch-2.7.6/src/inp.c.selinux patch-2.7.6/src/inp.c

--- patch-2.7.6/src/inp.c.selinux	2017-09-04 12:34:16.000000000 +0100

+++ patch-2.7.6/src/inp.c	2018-02-12 12:29:44.415225377 +0000

@@ -145,7 +145,7 @@ get_input_file (char const *filename, ch

     char *getbuf;

     if (inerrno == -1)

-      inerrno = stat_file (filename, &instat);

+	inerrno = stat_file (filename, &instat, &incontext);

     /* Perhaps look for RCS or SCCS versions.  */

     if (S_ISREG (file_type)

@@ -190,7 +190,7 @@ get_input_file (char const *filename, ch

 	    }

 	    if (cs && version_get (filename, cs, ! inerrno, elsewhere, getbuf,

-				   &instat))

+				   &instat, &incontext))

 	      inerrno = 0;

 	    free (getbuf);

@@ -201,6 +201,7 @@ get_input_file (char const *filename, ch

       {

 	instat.st_mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;

 	instat.st_size = 0;

+	incontext = NULL;

       }

     else if (! ((S_ISREG (file_type) || S_ISLNK (file_type))

 	        && (file_type & S_IFMT) == (instat.st_mode & S_IFMT)))

diff -up patch-2.7.6/src/Makefile.am.selinux patch-2.7.6/src/Makefile.am

--- patch-2.7.6/src/Makefile.am.selinux	2017-09-04 12:34:16.000000000 +0100

+++ patch-2.7.6/src/Makefile.am	2018-02-12 12:29:44.415225377 +0000

@@ -37,7 +37,7 @@ patch_SOURCES = \

 AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib

 patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \

-	      $(LIB_XATTR) $(LIB_EACCESS)

+	      $(LIB_XATTR) $(LIB_EACCESS) -lselinux

 if ENABLE_MERGE

   patch_SOURCES += merge.c

diff -up patch-2.7.6/src/Makefile.in.selinux patch-2.7.6/src/Makefile.in

--- patch-2.7.6/src/Makefile.in.selinux	2018-02-03 13:33:56.000000000 +0000

+++ patch-2.7.6/src/Makefile.in	2018-02-12 12:29:44.415225377 +0000

@@ -1147,7 +1147,7 @@ patch_SOURCES = bestmatch.h common.h inp

 AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib \

 	$(am__append_2)

 patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \

-	      $(LIB_XATTR) $(LIB_EACCESS)

+	      $(LIB_XATTR) $(LIB_EACCESS) -lselinux

 all: all-am

diff -up patch-2.7.6/src/patch.c.selinux patch-2.7.6/src/patch.c

--- patch-2.7.6/src/patch.c.selinux	2018-02-03 12:41:49.000000000 +0000

+++ patch-2.7.6/src/patch.c	2018-02-12 12:30:27.315164138 +0000

@@ -269,19 +269,19 @@ main (int argc, char **argv)

 	  if (! strcmp (inname, outname))

 	    {

 	      if (inerrno == -1)

-		inerrno = stat_file (inname, &instat);

+		inerrno = stat_file (inname, &instat, NULL);

 	      outstat = instat;

 	      outerrno = inerrno;

 	    }

 	  else

-	    outerrno = stat_file (outname, &outstat);

+	    outerrno = stat_file (outname, &outstat, NULL);

 	  if (! outerrno)

 	    {

 	      if (has_queued_output (&outstat))

 		{

 		  output_files (&outstat);

-		  outerrno = stat_file (outname, &outstat);

+		  outerrno = stat_file (outname, &outstat, NULL);

 		  inerrno = -1;

 		}

 	      if (! outerrno)

@@ -598,7 +598,7 @@ main (int argc, char **argv)

 			}

 		      else

 			{

-			  attr |= FA_IDS | FA_MODE | FA_XATTRS;

+			  attr |= FA_IDS | FA_MODE | FA_XATTRS | FA_SECCONTEXT;

 			  set_file_attributes (TMPOUTNAME, attr, inname, &instat,

 					       mode, &new_time);

 			}

@@ -658,7 +658,7 @@ main (int argc, char **argv)

 			struct stat oldst;

 			int olderrno;

-			olderrno = stat_file (rej, &oldst);

+			olderrno = stat_file (rej, &oldst, NULL);

 			if (olderrno && olderrno != ENOENT)

 			  write_fatal ();

 		        if (! olderrno && lookup_file_id (&oldst) == CREATED)

@@ -1790,7 +1790,7 @@ delete_file_later (const char *name, con

   if (! st)

     {

-      if (stat_file (name, &st_tmp) != 0)

+      if (stat_file (name, &st_tmp, NULL) != 0)

 	pfatal ("Can't get file attributes of %s %s", "file", name);

       st = &st_tmp;

     }

diff -up patch-2.7.6/src/pch.c.selinux patch-2.7.6/src/pch.c

--- patch-2.7.6/src/pch.c.selinux	2018-02-03 12:41:49.000000000 +0000

+++ patch-2.7.6/src/pch.c	2018-02-12 12:29:44.416225375 +0000

@@ -1,6 +1,6 @@

 /* reading patches */

-/* Copyright (C) 1986, 1987, 1988 Larry Wall

+/* Copyright (C) 1986, 1987, 1988, 2012 Larry Wall

    Copyright (C) 1990-1993, 1997-2003, 2006, 2009-2012 Free Software

    Foundation, Inc.

@@ -296,7 +296,7 @@ there_is_another_patch (bool need_header

 	if (t > buf + 1 && *(t - 1) == '\n')

 	  {

 	    inname = xmemdup0 (buf, t - buf - 1);

-	    inerrno = stat_file (inname, &instat);

+	    inerrno = stat_file (inname, &instat, &incontext);

 	    if (inerrno)

 	      {

 		perror (inname);

@@ -433,6 +433,7 @@ intuit_diff_type (bool need_header, mode

     bool extended_headers = false;

     enum nametype i;

     struct stat st[3];

+    security_context_t con[3];

     int stat_errno[3];

     int version_controlled[3];

     enum diff retval;

@@ -473,6 +474,7 @@ intuit_diff_type (bool need_header, mode

     version_controlled[OLD] = -1;

     version_controlled[NEW] = -1;

     version_controlled[INDEX] = -1;

+    con[OLD] = con[NEW] = con[INDEX] = NULL;

     p_rfc934_nesting = 0;

     p_timestamp[OLD].tv_sec = p_timestamp[NEW].tv_sec = -1;

     p_says_nonexistent[OLD] = p_says_nonexistent[NEW] = 0;

@@ -883,7 +885,7 @@ intuit_diff_type (bool need_header, mode

 		}

 	      else

 		{

-		  stat_errno[i] = stat_file (p_name[i], &st[i]);

+		  stat_errno[i] = stat_file (p_name[i], &st[i], &con[i]);

 		  if (! stat_errno[i])

 		    {

 		      if (lookup_file_id (&st[i]) == DELETE_LATER)

@@ -922,7 +924,7 @@ intuit_diff_type (bool need_header, mode

 			  if (cs)

 			    {

 			      if (version_get (p_name[i], cs, false, readonly,

-					       getbuf, &st[i]))

+					       getbuf, &st[i], &con[i]))

 				stat_errno[i] = 0;

 			      else

 				version_controlled[i] = 0;

@@ -985,7 +987,7 @@ intuit_diff_type (bool need_header, mode

       {

 	if (inname)

 	  {

-	    inerrno = stat_file (inname, &instat);

+	    inerrno = stat_file (inname, &instat, &incontext);

 	    if (inerrno || (instat.st_mode & S_IFMT) == file_type)

 	      maybe_reverse (inname, inerrno, inerrno || instat.st_size == 0);

 	  }

@@ -998,8 +1000,14 @@ intuit_diff_type (bool need_header, mode

 	inerrno = stat_errno[i];

 	invc = version_controlled[i];

 	instat = st[i];

+	incontext = con[i];

+	con[i] = NULL;

       }

+    for (i = OLD; i <= INDEX; i++)

+      if (con[i])

+	freecon (con[i]);

+

     return retval;

 }

diff -up patch-2.7.6/src/util.c.selinux patch-2.7.6/src/util.c

--- patch-2.7.6/src/util.c.selinux	2018-02-03 12:41:49.000000000 +0000

+++ patch-2.7.6/src/util.c	2018-02-12 12:29:44.417225374 +0000

@@ -300,6 +300,23 @@ set_file_attributes (char const *to, enu

 		S_ISLNK (mode) ? "symbolic link" : "file",

 		quotearg (to));

     }

+  if (attr & FA_SECCONTEXT)

+    {

+      security_context_t outcontext;

+      if (incontext && getfilecon (to, &outcontext) != -1 && outcontext)

+	{

+	  if (strcmp (outcontext, incontext) &&

+	      setfilecon (to, incontext) != 0)

+	    {

+	      freecon (outcontext);

+	      if (errno != ENOTSUP && errno != EPERM)

+		pfatal ("Can't set security context on file %s",

+			quotearg (to));

+	    }

+	  else

+	    freecon (outcontext);

+	}

+    }

 }

 static void

@@ -446,7 +463,7 @@ move_file (char const *from, bool *from_

   struct stat to_st;

   int to_errno;

-  to_errno = stat_file (to, &to_st);

+  to_errno = stat_file (to, &to_st, NULL);

   if (backup)

     create_backup (to, to_errno ? NULL : &to_st, false);

   if (! to_errno)

@@ -818,7 +835,8 @@ version_controller (char const *filename

    Return true if successful.  */

 bool

 version_get (char const *filename, char const *cs, bool exists, bool readonly,

-	     char const *getbuf, struct stat *filestat)

+	     char const *getbuf, struct stat *filestat,

+	     security_context_t *filecontext)

 {

   if (patch_get < 0)

     {

@@ -843,6 +861,13 @@ version_get (char const *filename, char

 	fatal ("Can't get file %s from %s", quotearg (filename), cs);

       if (safe_stat (filename, filestat) != 0)

 	pfatal ("%s", quotearg (filename));

+      if (filecontext && getfilecon (filename, filecontext) == -1)

+	{

+	  if (errno == ENODATA || errno == ENOTSUP)

+	    *filecontext = NULL;

+	  else

+	    pfatal ("%s", quotearg (filename));

+	}

     }

   return 1;

@@ -1670,12 +1695,28 @@ make_tempfile (char const **name, char l

   return fd;

 }

-int stat_file (char const *filename, struct stat *st)

+int stat_file (char const *filename, struct stat *st, security_context_t *con)

 {

   int (*xstat)(char const *, struct stat *) =

     follow_symlinks ? safe_stat : safe_lstat;

+  int (*xgetfilecon)(char const *, security_context_t *) =

+    follow_symlinks ? getfilecon : lgetfilecon;

+

+  if (xstat (filename, st) == 0)

+    {

+      if (con)

+	{

+	  if (xgetfilecon (filename, con) != -1 ||

+	      errno == ENODATA || errno == ENOTSUP)

+	    return 0;

-  return xstat (filename, st) == 0 ? 0 : errno;

+	  *con = NULL;

+	}

+      else

+	return 0;

+    }

+ 

+  return errno;

 }

 /* Check if a filename is relative and free of ".." components.

diff -up patch-2.7.6/src/util.h.selinux patch-2.7.6/src/util.h

--- patch-2.7.6/src/util.h.selinux	2018-02-03 12:41:49.000000000 +0000

+++ patch-2.7.6/src/util.h	2018-02-12 12:30:08.533190949 +0000

@@ -44,7 +44,7 @@ char *parse_name (char const *, int, cha

 char *savebuf (char const *, size_t);

 char *savestr (char const *);

 char const *version_controller (char const *, bool, struct stat const *, char **, char **);

-bool version_get (char const *, char const *, bool, bool, char const *, struct stat *);

+bool version_get (char const *, char const *, bool, bool, char const *, struct stat *, security_context_t *);

 int create_file (char const *, int, mode_t, bool);

 int systemic (char const *);

 char *format_linenum (char[LINENUM_LENGTH_BOUND + 1], lin);

@@ -67,7 +67,7 @@ void insert_file_id (struct stat const *

 enum file_id_type lookup_file_id (struct stat const *);

 void set_queued_output (struct stat const *, bool);

 bool has_queued_output (struct stat const *);

-int stat_file (char const *, struct stat *);

+int stat_file (char const *, struct stat *, security_context_t *);

 bool filename_is_safe (char const *) _GL_ATTRIBUTE_PURE;

 bool cwd_is_root (char const *);

@@ -75,7 +75,8 @@ enum file_attributes {

   FA_TIMES = 1,

   FA_IDS = 2,

   FA_MODE = 4,

-  FA_XATTRS = 8

+  FA_XATTRS = 8,

+  FA_SECCONTEXT = 16

 };

 void set_file_attributes (char const *, enum file_attributes, char const *,