patch/patch-selinux.patch

diff -up patch-2.6/Makefile.in.selinux patch-2.6/Makefile.in
--- patch-2.6/Makefile.in.selinux	2009-11-02 19:09:57.000000000 +0000
+++ patch-2.6/Makefile.in	2009-11-16 09:38:44.171021894 +0000
@@ -40,7 +40,7 @@ EXEEXT = @EXEEXT@
 LDFLAGS = @LDFLAGS@
 LIBOBJDIR = gl/lib/
 LIBOBJS = @LIBOBJS@ ${LIBOBJDIR}full-write$U.o
-LIBS = @LIBS@
+LIBS = @LIBS@ -lselinux
 OBJEXT = @OBJEXT@
 PACKAGE_NAME = @PACKAGE_NAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
diff -up patch-2.6/src/common.h.selinux patch-2.6/src/common.h
--- patch-2.6/src/common.h.selinux	2009-11-02 19:09:57.000000000 +0000
+++ patch-2.6/src/common.h	2009-11-16 09:38:12.579147244 +0000
@@ -32,6 +32,8 @@
 #include <sys/types.h>
 #include <time.h>
 
+#include <selinux/selinux.h>
+
 #include <sys/stat.h>
 #if ! defined S_ISDIR && defined S_IFDIR
 # define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
@@ -118,6 +120,7 @@ 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-2.6/src/inp.c.selinux patch-2.6/src/inp.c
--- patch-2.6/src/inp.c.selinux	2009-11-16 09:37:57.515147431 +0000
+++ patch-2.6/src/inp.c	2009-11-16 09:40:04.782022221 +0000
@@ -153,7 +153,20 @@ get_input_file (char const *filename, ch
     char *getbuf;
 
     if (inerrno == -1)
-      inerrno = stat (filename, &instat) == 0 ? 0 : errno;
+      {
+	inerrno = stat (filename, &instat) == 0 ? 0 : errno;
+	if (inerrno == 0)
+	  {
+	    inerrno = getfilecon (inname, &incontext) == -1 ? errno : 0;
+	    if (inerrno == ENODATA || inerrno == ENOTSUP)
+	      {
+		inerrno = 0;
+		incontext = NULL;
+	      }
+	  }
+	else
+	  incontext = NULL;
+      }
 
     /* Perhaps look for RCS or SCCS versions.  */
     if (patch_get
@@ -197,7 +210,7 @@ get_input_file (char const *filename, ch
 	    }
 
 	    if (cs && version_get (filename, cs, ! inerrno, elsewhere, getbuf,
-				   &instat))
+				   &instat, &incontext))
 	      inerrno = 0;
 
 	    free (getbuf);
@@ -209,6 +222,7 @@ 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 (instat.st_mode))
       fatal ("File %s is not a regular file -- can't patch",
diff -up patch-2.6/src/patch.c.selinux patch-2.6/src/patch.c
--- patch-2.6/src/patch.c.selinux	2009-11-16 09:37:57.516146641 +0000
+++ patch-2.6/src/patch.c	2009-11-16 09:41:47.676147549 +0000
@@ -421,6 +421,21 @@ main (int argc, char **argv)
 			      /* Fails if we are not in group instat.st_gid.  */
 			      chown (outname, -1, instat.st_gid);
 			    }
+
+			  if (! inerrno && incontext)
+			    {
+			      security_context_t outcontext;
+			      if (! getfilecon (outname, &outcontext) &&
+				  outcontext &&
+				  strcmp(outcontext, incontext) && 
+				  setfilecon (outname, incontext) != 0)
+				{
+				  if (errno != ENOTSUP && errno != EPERM)
+				    pfatal ("Can't set security context "
+					    "on file %s", quotearg (outname));
+				}
+			    }
+
 			  /* FIXME: There may be other attributes to preserve.  */
 			}
 		    }
diff -up patch-2.6/src/pch.c.selinux patch-2.6/src/pch.c
--- patch-2.6/src/pch.c.selinux	2009-11-02 19:09:57.000000000 +0000
+++ patch-2.6/src/pch.c	2009-11-16 09:42:17.453147283 +0000
@@ -288,7 +288,12 @@ there_is_another_patch (bool need_header
 	    inname[t - buf - 1] = 0;
 	    if (stat (inname, &instat) == 0)
 	      {
-		inerrno = 0;
+		inerrno = getfilecon (inname, &incontext) == -1 ? errno : 0;
+		if (inerrno == ENODATA || inerrno == ENOTSUP)
+		  {
+		    inerrno = 0;
+		    incontext = NULL;
+		  }
 		invc = -1;
 	      }
 	    else
@@ -662,7 +667,7 @@ intuit_diff_type (bool need_header)
 			  if (cs)
 			    {
 			      if (version_get (p_name[i], cs, false, readonly,
-					       getbuf, &st[i]))
+					       getbuf, &st[i], NULL))
 				stat_errno[i] = 0;
 			      else
 				version_controlled[i] = 0;
@@ -727,6 +732,7 @@ intuit_diff_type (bool need_header)
 	inerrno = stat_errno[i];
 	invc = version_controlled[i];
 	instat = st[i];
+	getfilecon (inname, &incontext);
       }
 
     return retval;
diff -up patch-2.6/src/util.c.selinux patch-2.6/src/util.c
--- patch-2.6/src/util.c.selinux	2009-11-02 19:09:57.000000000 +0000
+++ patch-2.6/src/util.c	2009-11-16 09:40:27.472147644 +0000
@@ -574,7 +574,8 @@ 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)
     {
@@ -599,6 +600,13 @@ version_get (char const *filename, char 
 	fatal ("Can't get file %s from %s", quotearg (filename), cs);
       if (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;
diff -up patch-2.6/src/util.h.selinux patch-2.6/src/util.h
--- patch-2.6/src/util.h.selinux	2009-11-02 19:09:57.000000000 +0000
+++ patch-2.6/src/util.h	2009-11-16 09:42:48.750148164 +0000
@@ -51,7 +51,7 @@ char *fetchname (char *, int, char **, t
 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], LINENUM);