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authorDavid Thompson <dthompson2@worcester.edu>2015-08-01 13:54:40 -0400
committerDavid Thompson <dthompson2@worcester.edu>2015-09-07 13:09:58 -0400
commit4949ada9da470b266063ff490438c85541af24cc (patch)
treefbc54ac309cb44e20b20a7528a42583cdc43758a /gnu/build
parent468e56576c23c44b96f0af08e15bd302862f9c81 (diff)
downloadguix-4949ada9da470b266063ff490438c85541af24cc.tar.gz
build: container: Setup /dev/console.
* gnu/build/linux-container.scm (mount-file-systems): Bind mount the
  controlling terminal as /dev/console.
Diffstat (limited to 'gnu/build')
-rw-r--r--gnu/build/linux-container.scm15
1 files changed, 13 insertions, 2 deletions
diff --git a/gnu/build/linux-container.scm b/gnu/build/linux-container.scm
index af599040a1..c004303f03 100644
--- a/gnu/build/linux-container.scm
+++ b/gnu/build/linux-container.scm
@@ -55,6 +55,9 @@ to ROOT, then make ROOT the new root directory for the process."
   (define (scope dir)
     (string-append root dir))
 
+  (define (touch file-name)
+    (call-with-output-file file-name (const #t)))
+
   (define (bind-mount src dest)
     (mount src dest "none" MS_BIND))
 
@@ -89,8 +92,7 @@ to ROOT, then make ROOT the new root directory for the process."
   (for-each (lambda (device)
               (when (file-exists? device)
                 ;; Create the mount point file.
-                (call-with-output-file (scope device)
-                  (const #t))
+                (touch (scope device))
                 (bind-mount device (scope device))))
             '("/dev/null"
               "/dev/zero"
@@ -101,6 +103,15 @@ to ROOT, then make ROOT the new root directory for the process."
               "/dev/ptmx"
               "/dev/fuse"))
 
+  ;; Setup the container's /dev/console by bind mounting the pseudo-terminal
+  ;; associated with standard input.
+  (let ((in      (current-input-port))
+        (console (scope "/dev/console")))
+    (when (isatty? in)
+      (touch console)
+      (chmod console #o600)
+      (bind-mount (ttyname in) console)))
+
   ;; Setup standard input/output/error.
   (symlink "/proc/self/fd"   (scope "/dev/fd"))
   (symlink "/proc/self/fd/0" (scope "/dev/stdin"))