1 files changed, 37 insertions, 0 deletions
diff --git a/sys/cmd/rc/trap.c b/sys/cmd/rc/trap.c
new file mode 100644
index 0000000..a572cac
--- /dev/null
+++ b/sys/cmd/rc/trap.c
@@ -0,0 +1,37 @@
+#include "rc.h"
+#include "exec.h"
+#include "fns.h"
+#include "io.h"
+extern char *Signame[];
+
+void
+dotrap(void)
+{
+	int i;
+	struct var *trapreq;
+	struct word *starval;
+	starval = vlook("*")->val;
+	while(ntrap) for(i = 0;i!=NSIG;i++) while(trap[i]){
+		--trap[i];
+		--ntrap;
+		if(getpid()!=mypid) Exit(getstatus());
+		trapreq = vlook(Signame[i]);
+		if(trapreq->fn){
+			start(trapreq->fn, trapreq->pc, (struct var *)0);
+			runq->local = newvar(strdup("*"), runq->local);
+			runq->local->val = copywords(starval, (struct word *)0);
+			runq->local->changed = 1;
+			runq->redir = runq->startredir = 0;
+		}
+		else if(i==SIGINT || i==SIGQUIT){
+			/*
+			 * run the stack down until we uncover the
+			 * command reading loop.  Xreturn will exit
+			 * if there is none (i.e. if this is not
+			 * an interactive rc.)
+			 */
+			while(!runq->iflag) Xreturn();
+		}
+		else Exit(getstatus());
+	}
+}