diff options
| author | Jonas Falkevik <[email protected]> | 2014-04-04 22:17:34 +0200 |
|---|---|---|
| committer | Peter Andersson <[email protected]> | 2015-04-22 12:24:49 +0200 |
| commit | fc130e699774228f396dc6f4fef4b654edc00451 (patch) | |
| tree | 1bcf05705259af6b06a44c4c5fd41f2ef1a5847a /lib/kernel/src/user_drv.erl | |
| parent | 67acde7a3522c651982a6789c749aaf73313e913 (diff) | |
| download | otp-fc130e699774228f396dc6f4fef4b654edc00451.tar.gz otp-fc130e699774228f396dc6f4fef4b654edc00451.tar.bz2 otp-fc130e699774228f396dc6f4fef4b654edc00451.zip | |
Fix shell crash when in switch command mode
The user_drv process can crash if ctrl-y is pressed when in switch command mode (ctrl-g).
This is due to switch mode using edlin to parse the input.
And edlin uses the process dictionary to store the kill_buffer.
However the kill_buffer is undefined if not initialized by edlin:init/0
which makes the user_drv process crash since edlin is calling list:reverse/2 with undefined.
Fix calles edlin:init/0 once before server_loop is entered.
Diffstat (limited to 'lib/kernel/src/user_drv.erl')
| -rw-r--r-- | lib/kernel/src/user_drv.erl | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/kernel/src/user_drv.erl b/lib/kernel/src/user_drv.erl index e6ce85c379..f7b2be1ca3 100644 --- a/lib/kernel/src/user_drv.erl +++ b/lib/kernel/src/user_drv.erl @@ -133,6 +133,10 @@ server1(Iport, Oport, Shell) -> flatten(io_lib:format("~ts\n", [erlang:system_info(system_version)]))}, Iport, Oport), + + %% Init edlin used by switch command + edlin:init(), + %% Enter the server loop. server_loop(Iport, Oport, Curr, User, Gr, queue:new()). |