updated for version 7.2-300

src/auto/configure

@@ -15174,6 +15174,58 @@ else
 $as_echo "yes" >&6; }
 fi
 
+{ $as_echo "$as_me:$LINENO: checking for FD_CLOEXEC" >&5
+$as_echo_n "checking for FD_CLOEXEC... " >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#if HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+int
+main ()
+{
+	int flag = FD_CLOEXEC;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }; cat >>confdefs.h <<\_ACEOF
+#define HAVE_FD_CLOEXEC 1
+_ACEOF
+
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	{ $as_echo "$as_me:$LINENO: result: not usable" >&5
+$as_echo "not usable" >&6; }
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 { $as_echo "$as_me:$LINENO: checking for rename" >&5
 $as_echo_n "checking for rename... " >&6; }
 cat >conftest.$ac_ext <<_ACEOF

src/config.h.in

@@ -388,3 +388,6 @@
 
 /* Define if you want XSMP interaction as well as vanilla swapfile safety */
 #undef USE_XSMP_INTERACT
+
+/* Define if fcntl()'s F_SETFD command knows about FD_CLOEXEC */
+#undef HAVE_FD_CLOEXEC

src/configure.in

@@ -2855,6 +2855,16 @@ else
   AC_MSG_RESULT(yes)
 fi
 
+dnl make sure the FD_CLOEXEC flag for fcntl()'s F_SETFD command is known
+AC_MSG_CHECKING(for FD_CLOEXEC)
+AC_TRY_COMPILE(
+[#if HAVE_FCNTL_H
+# include <fcntl.h>
+#endif],
+[	int flag = FD_CLOEXEC;],
+	AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FD_CLOEXEC),
+	AC_MSG_RESULT(not usable))
+
 dnl rename needs to be checked separately to work on Nextstep with cc
 AC_MSG_CHECKING(for rename)
 AC_TRY_LINK([#include <stdio.h>], [rename("this", "that")],

src/fileio.c

@@ -2254,6 +2254,14 @@ failed:
 
     if (!read_buffer && !read_stdin)
 	close(fd);				/* errors are ignored */
+#ifdef HAVE_FD_CLOEXEC
+    else
+    {
+	int fdflags = fcntl(fd, F_GETFD);
+	if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
+	    fcntl(fd, F_SETFD, fdflags | FD_CLOEXEC);
+    }
+#endif
     vim_free(buffer);
 
 #ifdef HAVE_DUP

src/memfile.c

@@ -1343,6 +1343,11 @@ mf_do_open(mfp, fname, flags)
     }
     else
     {
+#ifdef HAVE_FD_CLOEXEC
+	int fdflags = fcntl(mfp->mf_fd, F_GETFD);
+	if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
+	    fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
+#endif
 #ifdef HAVE_SELINUX
 	mch_copy_sec(fname, mfp->mf_fname);
 #endif

src/memline.c

@@ -382,7 +382,7 @@ ml_open(buf)
     dp->db_index[0] = --dp->db_txt_start;	/* at end of block */
     dp->db_free -= 1 + INDEX_SIZE;
     dp->db_line_count = 1;
-    *((char_u *)dp + dp->db_txt_start) = NUL;	/* emtpy line */
+    *((char_u *)dp + dp->db_txt_start) = NUL;	/* empty line */
 
     return OK;
 
@@ -490,6 +490,13 @@ ml_setname(buf)
 	    EMSG(_("E301: Oops, lost the swap file!!!"));
 	    return;
 	}
+#ifdef HAVE_FD_CLOEXEC
+	{
+	    int fdflags = fcntl(mfp->mf_fd, F_GETFD);
+	    if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
+		fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
+	}
+#endif
     }
     if (!success)
 	EMSG(_("E302: Could not rename swap file"));

src/version.c

@@ -681,6 +681,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    300,
 /**/
     299,
 /**/