Imported Upstream version 2.6.0

[debian/amanda] / config / amanda / devprefix.m4

diff --git a/config/amanda/devprefix.m4 b/config/amanda/devprefix.m4
new file mode 100644 (file)
index 0000000..7359d74
--- /dev/null
+++ b/config/amanda/devprefix.m4
@@ -0,0 +1,119 @@
+# SYNOPSIS
+#
+#   AMANDA_CHECK_DEVICE_PREFIXES
+#
+# DESCRIPTION
+#
+#   Check for the prefixes used for particular devices.  If the prefixes
+#   are broken on this system (Sinix and HPUX), suggest how to fix them.
+#
+#   Substitutes CLIENT_SCRIPTS_OPT with the name of the script used to fix
+#   broken systems.
+#
+#   Defines DEV_PREFIX and RDEV_PREFIX to the appropriate prefixes.
+#
+AC_DEFUN([AMANDA_CHECK_DEVICE_PREFIXES],
+[
+    # disk device prefixes
+    AC_MSG_CHECKING(disk device prefixes)
+
+    # Use df to find the mount point for the root filesystem.  Use
+    # the positional parameters to find the particular line from df
+    # that contains the root paritition.  We put it in a subshell so
+    # that the original positional parameters are not messed with.
+    dfline=`(
+       df / | while read line; do
+           set -- $line
+           dnl @S|@ means $ to m4
+           while test @S|@# -gt 0; do
+               if test "x@S|@1" = "x/"; then
+                   echo $line
+                   break 2
+               fi
+               shift
+           done
+       done
+    ) | sed 's/(//' | sed 's/)//' `
+
+    # Search for the mount point by using expr to find the parameter
+    # with dev in it.
+    mount=`(
+       set -- $dfline
+       dnl @S|@ means $ to m4
+       while test @S|@# -gt 0; do
+           if expr "@S|@1" : '.*dev' >/dev/null 2>&1; then
+               echo @S|@1
+               break
+           fi
+           shift
+       done
+    )`
+
+    # get any system-specific configuration information
+    case "$target" in
+       *-hp-*)
+           CLIENT_SCRIPTS_OPT=amhpfixdevs
+           case $mount in
+               /dev/vg*)
+                   AMANDA_MSG_WARN([Run amhpfixdevs on HP-UX systems using /dev/vg??.])
+                   ;;
+           esac
+           ;;
+       *-sni-sysv4)
+           DEV_PREFIX=/dev/dsk/
+           RDEV_PREFIX=/dev/rdsk/
+           CLIENT_SCRIPTS_OPT=amsinixfixdevs
+           if ! test -d /dev/dsk; then
+               AMANDA_MSG_WARN([Run amsinixfixdevs on Sinix systems using VxFS.])
+           fi
+           ;;
+       *-sco3.2v4*)
+           DEV_PREFIX=/dev/
+           RDEV_PREFIX=/dev/
+           ;;
+       *)
+           CLIENT_SCRIPTS_OPT=
+           ;;
+    esac
+
+    if test "$DEV_PREFIX" && test "$RDEV_PREFIX"; then
+       AC_MSG_RESULT((predefined) $DEV_PREFIX - $RDEV_PREFIX)
+    else
+       if test -d /dev/dsk; then
+           DEV_PREFIX=/dev/dsk/
+           if test -d /dev/rdsk; then
+               RDEV_PREFIX=/dev/rdsk/
+           else
+               RDEV_PREFIX=/dev/dsk/
+           fi
+       elif test -d /dev; then
+           DEV_PREFIX=/dev/
+
+           # Some systems, notably Linux, do not have raw disk devices
+           # names.  Check this by trying to see if a raw disk device name
+           # exists using the normal raw device path prepended to the
+           # mount point of the root filesystem.
+           if test "$mount"; then
+               dev_name="/dev/r`basename $mount`"
+               if test -b $dev_name -o -c $dev_name; then
+                   RDEV_PREFIX=/dev/r
+               else
+                   RDEV_PREFIX=/dev/
+               fi
+           else
+               RDEV_PREFIX=/dev/r
+           fi
+       else
+           # just fake it..
+           DEV_PREFIX=/
+           RDEV_PREFIX=/
+       fi
+       AC_MSG_RESULT($DEV_PREFIX - $RDEV_PREFIX)
+    fi
+
+    AC_DEFINE_UNQUOTED(DEV_PREFIX,"${DEV_PREFIX}",
+       [Define as the prefix for disk devices, commonly /dev/ or /dev/dsk/ ])
+    AC_DEFINE_UNQUOTED(RDEV_PREFIX,"${RDEV_PREFIX}",
+       [Define as the prefix for raw disk devices, commonly /dev/r or /dev/rdsk/ ])
+    AC_SUBST(CLIENT_SCRIPTS_OPT)
+])