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birdc: Do not execute cmd on noninteractive help request

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The help command triggered by '?' keeps the message in readline buffer,
so it could be edited. For noninteractive shell it leads to an unexpected
side effect that `echo <cmd> ? | birdc` executes the command <cmd> after
showing its help. Avoid this by clearing the readline buffer in such case.
This commit is contained in:
Inrin 2024-02-06 19:03:14 +01:00 committed by Ondrej Zajicek
parent ff2ebdc7e1
commit 0b52f7c01f
1 changed files with 3 additions and 0 deletions
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3
client/birdc.c
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@ -136,6 +136,9 @@ input_help(int arg, int key UNUSED)
input_start_list(); input_start_list();
cmd_help(rl_line_buffer, rl_point); cmd_help(rl_line_buffer, rl_point);
rl_undo_command(1, 0); rl_undo_command(1, 0);
/* <cmd> ? is "internal". Do not submit command in non interactive session */
if (!interactive)
rl_replace_line("", 0);
input_stop_list(); input_stop_list();
return 0; return 0;
} }