uslip/uslip.c: Shut the server down on `SIGTERM'.

[tripe] / uslip / uslip.c

diff --git a/uslip/uslip.c b/uslip/uslip.c
index 7752458c286031d3156f1c6f359dc1d32f015b95..0ed9e70e59b8da707b681dcc203d810758ce0ef7 100644 (file)
--- a/uslip/uslip.c
+++ b/uslip/uslip.c
@@ -55,6 +55,7 @@
 #include <mLib/quis.h>
 #include <mLib/report.h>
 #include <mLib/sel.h>
+#include <mLib/sig.h>
 #include <mLib/sub.h>
 #include <mLib/tv.h>
 
@@ -461,6 +462,16 @@ static void done_slip_dribble(dribbler *d, int err, void *hunoz)
     cripple_dribbler(d);
 }
 
+static void close_slip(int fd)
+{
+  switch (slipstate) {
+    case SYNC1: case SYNC2: case START: case BAD: break;
+    default: moan("eof found while processing packet (discarding)"); break;
+  }
+  close(fd); sel_rmfile(&slip_in);
+  reasons--;
+}
+
 static void do_slip_in(int fd, unsigned mode, void *hunoz)
 {
   ssize_t i, n;
@@ -477,19 +488,7 @@ static void do_slip_in(int fd, unsigned mode, void *hunoz)
   for (;;) {
     n = read(fd, buf, sizeof(buf));
     if (n == 0) {
-      switch (slipstate) {
-       case SYNC1:
-       case SYNC2:
-       case START:
-       case BAD:
-         break;
-       default:
-         moan("eof found while processing packet (discarding)");
-         break;
-      }
-      close(fd);
-      sel_rmfile(&slip_in);
-      reasons--;
+      close_slip(fd);
       return;
     } else if (n < 0) {
       if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)
@@ -572,11 +571,15 @@ static void do_slip_in(int fd, unsigned mode, void *hunoz)
   }
 }
 
+static void slip_term(int n, void *fdp)
+  { close_slip(*(int *)fdp); }
+
 static void slipif(void)
 {
   int fd;
   dstr d = DSTR_INIT;
   struct sockaddr_un sun;
+  sig term;
   size_t sz;
 
   /* --- Make the socket --- */
@@ -601,6 +604,10 @@ static void slipif(void)
   dribble_out = make_dribbler(STDOUT_FILENO, done_slip_dribble, 0);
   sel_addfile(&slip_in);
 
+  sig_init(&sel);
+  sig_add(&term, SIGTERM, slip_term, &fd);
+  sig_add(&term, SIGINT, slip_term, &fd);
+
   initqueue(&q_in);
   reasons++;