Add `mediaOpen' function. This function mounts selected media device.

For example, you can dynamically generate and load configuration file
depending on the hardware configuration with the following template:

	mediaSetCDROM
	mediaOpen
	command='/dist/rescue/sh /dist/scripts/install.sh'
	system
	mediaClose
	configFile=/tmp/generated.cfg
	loadConfig

Now we have full access to files on the media before installation begins.

4 files changed, 22 insertions, 0 deletions

diff --git a/usr.sbin/sysinstall/dispatch.c b/usr.sbin/sysinstall/dispatch.c
index 4896b23..b1d0099 100644
--- a/usr.sbin/sysinstall/dispatch.c
+++ b/usr.sbin/sysinstall/dispatch.c
@@ -45,6 +45,7 @@
 static int dispatch_shutdown(dialogMenuItem *unused);
 static int dispatch_systemExecute(dialogMenuItem *unused);
 static int dispatch_msgConfirm(dialogMenuItem *unused);
+static int dispatch_mediaOpen(dialogMenuItem *unused);
 static int dispatch_mediaClose(dialogMenuItem *unused);
 
 static struct _word {
@@ -91,6 +92,7 @@ static struct _word {
     { "installVarDefaults",	installVarDefaults	},
     { "loadConfig",		dispatch_load_file	},
     { "loadFloppyConfig",	dispatch_load_floppy	},
+    { "mediaOpen",		dispatch_mediaOpen	},
     { "mediaClose",		dispatch_mediaClose	},
     { "mediaSetCDROM",		mediaSetCDROM		},
     { "mediaSetFloppy",		mediaSetFloppy		},
@@ -204,6 +206,12 @@ dispatch_msgConfirm(dialogMenuItem *unused)
 }
 
 static int
+dispatch_mediaOpen(dialogMenuItem *unused)
+{
+    return mediaOpen();
+}
+
+static int
 dispatch_mediaClose(dialogMenuItem *unused)
 {
     mediaClose();
diff --git a/usr.sbin/sysinstall/media.c b/usr.sbin/sysinstall/media.c
index cbdc01c..8e61c5a 100644
--- a/usr.sbin/sysinstall/media.c
+++ b/usr.sbin/sysinstall/media.c
@@ -122,6 +122,14 @@ cpioVerbosity()
     return "";
 }
 
+int
+mediaOpen(void)
+{
+    if (!mediaDevice || !mediaVerify() || !DEVICE_INIT(mediaDevice))
+	return DITEM_FAILURE;
+    return DITEM_SUCCESS;
+}
+
 void
 mediaClose(void)
 {
diff --git a/usr.sbin/sysinstall/sysinstall.8 b/usr.sbin/sysinstall/sysinstall.8
index aeb268e..378359d 100644
--- a/usr.sbin/sysinstall/sysinstall.8
+++ b/usr.sbin/sysinstall/sysinstall.8
@@ -629,6 +629,11 @@ configuration file from another.
 .It configFile
 The fully qualified pathname of the file to load.
 .El
+.It mediaOpen
+If a media device is set, mount it.
+.Pp
+.Sy Variables :
+None
 .It mediaClose
 If a media device is open, close it.
 .Pp
diff --git a/usr.sbin/sysinstall/sysinstall.h b/usr.sbin/sysinstall/sysinstall.h
index d099cca..3dfc048 100644
--- a/usr.sbin/sysinstall/sysinstall.h
+++ b/usr.sbin/sysinstall/sysinstall.h
@@ -702,6 +702,7 @@ extern u_char		default_scrnmap[];
 
 /* media.c */
 extern char	*cpioVerbosity(void);
+extern int	mediaOpen(void);
 extern void	mediaClose(void);
 extern int	mediaTimeout(void);
 extern int	mediaSetCDROM(dialogMenuItem *self);