1 files changed, 119 insertions, 0 deletions
diff --git a/dialects/darwin/get-hdr-loc.sh b/dialects/darwin/get-hdr-loc.sh
new file mode 100755
index 0000000..c0d9880
--- /dev/null
+++ b/dialects/darwin/get-hdr-loc.sh
@@ -0,0 +1,119 @@
+#!/bin/sh
+#
+# get-hdr-loc.sh -- get Darwin XNU kernel header file location
+#
+# Interactively requests the specification of the path to the host's Darwin
+# XNU kernel header files.  Checks that path and returns it to the caller.
+#
+# Usage: file1 file2 ... fileN
+#
+# Where: file1	first header file needed
+#	 file2	second header file needed
+#	 ...
+#	 fileN	last header file needed
+#
+# Exit:
+#
+#	Exit code: 0 if path found; path returned on STDOUT
+#
+#		   1 if path not found: error message returned
+#					on STDOUT
+#
+#set -x	# for DEBUGging
+
+# Check argument count.  There must be at least one argument.
+
+if test $# -lt 1	# {
+then
+  echo "insufficient arguments: $#"
+  exit 1
+fi	# }
+lst=$*
+
+# Request the path to the Darwin XNU kernel header files.
+
+trap 'stty echo; echo interrupted; exit 1' 1 2 3 15
+FOREVER=1
+while test $FOREVER -ge 1	# {
+do
+  if test $FOREVER -eq 1	# {
+  then
+    echo "---------------------------------------------------------------" 1>&2
+    echo "" 1>&2
+    echo "Lsof cannot find some Darwin XNU kernel header files it needs." 1>&2
+    echo "They should have already been downloaded from:" 1>&2
+    echo "" 1>&2
+    echo "    http://www.opensource.apple.com/darwinsource/index.html" 1>&2
+    echo "" 1>&2
+    echo "and then installed.  (See 00FAQ for download and installation" 1>&2
+    echo "instructions.)" 1>&2
+    echo "" 1>&2
+    echo "Please specify the path to the place where they were installed." 1>&2
+    echo "" 1>&2
+    echo "---------------------------------------------------------------" 1>&2
+  fi	# }
+
+  END=0
+  while test $END = 0	# {
+  do
+    echo "" 1>&2
+    echo -n "What is the path? " 1>&2
+    read HP EXCESS
+    HP=`echo echo $HP | /bin/csh -fs`
+    if test $? -eq 0	# {
+    then
+      if test "X$HP" = "X"	# {
+      then
+        echo "" 1>&2
+        echo "+================================+" 1>&2
+        echo "| Please enter a non-empty path. |" 1>&2
+        echo "+================================+" 1>&2
+        echo "" 1>&2
+      else
+        END=1
+      fi	# }
+    else
+      echo "" 1>&2
+      echo "+============================+" 1>&2
+      echo "| Please enter a legal path. |" 1>&2
+      echo "+============================+" 1>&2
+      echo "" 1>&2
+    fi	# }
+  done	# }
+  
+  # See if the header files are available in the specified path.
+
+  MH=""
+  for i in $lst	# {
+  do
+    if test ! -f ${HP}/bsd/$i -a ! -f ${HP}/osfmk/$i    # {
+    then
+      if test "X$MH" = "X"	# {
+      then
+        MH=$i
+      else
+        MH="$MH $i"
+      fi	# }
+    fi	# }
+  done	# }
+  if test "X$MH" = "X"	# {
+  then
+
+    # All header files are available, so return the path and exit cleanly.
+
+    echo $HP
+    exit 0
+  else
+    echo "" 1>&2
+    echo "ERROR: not all header files are in:" 1>&2
+    echo "" 1>&2
+    echo "       ${HP}" 1>&2
+    echo "" 1>&2
+    echo " These are missing:" 1>&2
+    echo "" 1>&2
+    echo "     $MH" 1>&2
+    FOREVER=2
+  fi	# }
+done	# }
+echo "unknown error"
+exit 1