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authorP. J. McDermott <pj@pehjota.net>2015-05-24 01:55:40 (EDT)
committer P. J. McDermott <pj@pehjota.net>2015-05-24 01:55:40 (EDT)
commitbf77b190c769131a175a3b41c599a7f92d356519 (patch)
tree01305ce8b1c4875b3b8a832a0c60e7bb3dda558a /lib
parentb76ff4956a6a6904d07b9b89e5d75decbd488675 (diff)
lib/block.sh: New file
Diffstat (limited to 'lib')
-rw-r--r--lib/block.sh85
-rw-r--r--lib/local.mk1
2 files changed, 86 insertions, 0 deletions
diff --git a/lib/block.sh b/lib/block.sh
new file mode 100644
index 0000000..7060690
--- /dev/null
+++ b/lib/block.sh
@@ -0,0 +1,85 @@
+# Functions for mounting and unmounting block devices
+#
+# Copyright (C) 2015 Patrick "P. J." McDermott
+#
+# This file is part of the ProteanOS Development Kit.
+#
+# The ProteanOS Development Kit is free software: you can redistribute
+# it and/or modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# The ProteanOS Development Kit is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the ProteanOS Development Kit. If not, see
+# <http://www.gnu.org/licenses/>.
+
+[ "x${_BLOCK_SM+set}" = 'xset' ] && return 0
+_BLOCK_SM=1
+
+use rand
+
+is_block()
+{
+ local dev="${1}"
+
+ [ -b "${dev}" ]
+ return ${?}
+}
+
+block_mount()
+{
+ local dev="${1}"
+ local dir=
+
+ if ! [ -b "${dev}" ]; then
+ error 2 "$(get_msg 'block_device_invalid')"
+ fi
+
+ rand
+ # FIXME: Hardcoded tmpdir
+ dir="/tmp/prokit-block-$(printf '%010d' ${rand_x})"
+ if ! mkdir "${dir}"; then
+ error 2 "$(get_msg 'block_mkdir_fail' "${dir}")"
+ fi
+
+ if ! mount "${dev}" "${dir}"; then
+ rmdir "${dir}"
+ error 2 "$(get_msg 'block_mount_fail' "${dev}")"
+ fi
+
+ printf '%s' "${dir}"
+ return 0
+}
+
+block_umount()
+{
+ local dir="${1}"
+ local i=
+ local timed_out=
+
+ i=0
+ timed_out=false
+ while ! umount "${dir}"; do
+ i=$(($i + 1))
+ if [ ${i} -eq 10 ]; then
+ timed_out=true
+ break
+ fi
+ sleep 1
+ done
+
+ if ${timed_out}; then
+ error 2 "$(get_msg 'block_umount_fail' "${dir}")"
+ fi
+
+ if ! rmdir "${dir}"; then
+ error 2 "$(get_msg 'block_rmdir_fail' "${dir}")"
+ fi
+
+ return 0
+}
diff --git a/lib/local.mk b/lib/local.mk
index 1ce768c..84a2ee6 100644
--- a/lib/local.mk
+++ b/lib/local.mk
@@ -12,6 +12,7 @@ pkgdata_sources = \
lib/pkg.sh \
lib/mutex.sh \
lib/session.sh \
+ lib/block.sh \
lib/opkg.sh \
lib/rand.sh \
lib/cmd.sh \