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seatd-launch: exit with status >128 if child is signalled

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Mimick shells and exit with a status >128 if our child has been
signalled. Exiting with 128 + signal number is what most shells do
(POSIX only requires them to exit with >128).
This commit is contained in:
Simon Ser 2021-09-13 09:54:18 +00:00 • committed by Kenny Levinsen
parent 8c85c46d2d
commit fe600eac2b
2 changed files with 11 additions and 1 deletions
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8
man/seatd-launch.1.scd
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@ -38,6 +38,14 @@ superior to it for two reasons:
. The specified command never runs as root . The specified command never runs as root
. The standard seatd executable and libseat backend is used . The standard seatd executable and libseat backend is used
# EXIT STATUS
seatd-launch exits with the status of its child. When the child terminates on
a signal _N_, seatd-launch exits with the status 128 + _N_.
If seatd-launch fails because of another error, it exits with a non-zero
status.
# SEE ALSO # SEE ALSO
The libseat library, *<libseat.h>*, *seatd*(1) The libseat library, *<libseat.h>*, *seatd*(1)

4
seatd-launch/seatd-launch.c
View file

@ -166,8 +166,10 @@ int main(int argc, char *argv[]) {
if (WIFEXITED(status)) { if (WIFEXITED(status)) {
return WEXITSTATUS(status); return WEXITSTATUS(status);
} else if (WIFSIGNALED(status)) {
return 128 + WTERMSIG(status);
} else { } else {
return 1; abort(); // unreachable
} }
error_seatd: error_seatd: