after

commit 269f02273a492d248ced4b4613a5a83fb78e7c62
parent 4cc602ddaff83a0993058190cbf22d6975506551
Author: zk <58356365+e-zk@users.noreply.github.com>
Date:   Tue,  5 Jan 2021 23:23:11 +1000

merge PR #3 from netzbasis/forUpstream

* only print string if process was running in the first place.
* add pledge safetybelts
Diffstat:
M
after.c
 | 
14
++++++++++++--

1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/after.c b/after.c
@@ -74,6 +74,7 @@ main(int argc, char *argv[])
 {
 	int i, ch, entries;
 	int pid = 0;
+	int found = 0;
 	char *pname = NULL, *cmd = NULL;
 	char errbuf[_POSIX2_LINE_MAX];
 
@@ -82,6 +83,9 @@ main(int argc, char *argv[])
 
 	verbose = 0;
 
+	if (pledge("stdio ps", NULL) == -1)
+		err(1, "pledge");
+
 	// argument parsing...
 	while((ch = getopt(argc, argv, "e:hn:p:v")) != -1)
 		switch(ch) {
@@ -131,13 +135,19 @@ main(int argc, char *argv[])
 		pname_is_in(pname, kinfo, entries) == 0 :
 		pid_is_in(pid, kinfo, entries) == 0
         ) {
+		found = 1;
 		kinfo = get_proc_list(kd, &entries);
 		debug_print("waiting...");
 		sleep(1);
 	}
 
-	debug_print("process not in process list (died?).");
-	printf("%s\n", cmd);
+	if (found) {
+		debug_print("process died.");
+		printf("%s\n", cmd);
+	} else {
+		debug_print("process not in process list.");
+		exit(1);
+	}
 
 	return 0;
 }