merge

[plan9front.git] / sys / src / cmd / ratrace.c

diff --git a/sys/src/cmd/ratrace.c b/sys/src/cmd/ratrace.c
index 95c50933c193f2da534b78ad69bc2e16d9e37b82..81b2437b11a7b6d5fde2768cd1495a3062261c91 100644 (file)
--- a/sys/src/cmd/ratrace.c
+++ b/sys/src/cmd/ratrace.c
@@ -192,6 +192,7 @@ threadmain(int argc, char **argv)
                if (pid < 0)
                        sysfatal("fork failed: %r");
                if(pid == 0) {
+                       write(open(smprint("/proc/%d/ctl", getpid()), OWRITE|OCEXEC), "hang", 4);
                        exec(cmd, args);
                        if(cmd[0] != '/')
                                exec(smprint("/bin/%s", cmd), args);