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isotptun: Follow Bash exit status when signaled 

Bash and many other shells use 128 + signum as the exit status when a
program get signal and exit.  Follow the common behavior so that we
know how the programs are killed.

Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
pull/416/head
Yasushi SHOJI 2023-03-20 10:05:58 +09:00
parent 3ef3d72738
commit 180eceff4d
1 changed files with 6 additions and 0 deletions
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6
isotptun.c
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@ -79,6 +79,7 @@
#define BUF_LEN (MAX_PDU_LENGTH + 1) #define BUF_LEN (MAX_PDU_LENGTH + 1)
static volatile int running = 1; static volatile int running = 1;
static volatile sig_atomic_t signal_num;
static void fake_syslog(int priority, const char *format, ...) static void fake_syslog(int priority, const char *format, ...)
{ {
@ -130,6 +131,7 @@ void print_usage(char *prg)
void sigterm(int signo) void sigterm(int signo)
{ {
running = 0; running = 0;
signal_num = signo;
} }
int main(int argc, char **argv) int main(int argc, char **argv)
@ -403,5 +405,9 @@ int main(int argc, char **argv)
close(s); close(s);
close(t); close(t);
if (signal_num)
return 128 + signal_num;
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }