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hush: do not print killing signal name in `cmd_whihc_dies_on_signal` 

function                                             old     new   delta
process_wait_result                                  438     449     +11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
pull/34/head
Denys Vlasenko 2020-10-24 03:33:32 +02:00
parent 079487b487
commit b65d6cb00f
3 changed files with 9 additions and 1 deletions
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8
shell/hush.c
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@ -8698,9 +8698,15 @@ static int process_wait_result(struct pipe *fg_pipe, pid_t childpid, int status)
*/
if (WIFSIGNALED(status)) {
int sig = WTERMSIG(status);
if (i == fg_pipe->num_cmds-1)
if (G.run_list_level == 1
/* ^^^^^ Do not print in nested contexts, example:
* echo `sleep 1; sh -c 'kill -9 $$'` - prints "137", NOT "Killed 137"
*/
&& i == fg_pipe->num_cmds-1
) {
/* TODO: use strsignal() instead for bash compat? but that's bloat... */
puts(sig == SIGINT || sig == SIGPIPE ? "" : get_signame(sig));
}
/* TODO: if (WCOREDUMP(status)) + " (core dumped)"; */
/* TODO: MIPS has 128 sigs (1..128), what if sig==128 here?
* Maybe we need to use sig | 128? */

1
shell/hush_test/hush-psubst/tick6.right Normal file
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@ -0,0 +1 @@
137

1
shell/hush_test/hush-psubst/tick6.tests Executable file
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@ -0,0 +1 @@
true; echo `sh -c 'kill -9 $$'` $?