fix line overflow and failure to remove lock on signal bugs

SCCS-vsn: old/cu/cu.c 4.3

diff --git a/usr/src/old/cu/cu.c b/usr/src/old/cu/cu.c
index 73fd35f..593806f 100644 (file)
--- a/usr/src/old/cu/cu.c
+++ b/usr/src/old/cu/cu.c
@@ -1,4 +1,4 @@
-static char *sccsid = "@(#)cu.c        4.2 (Berkeley) %G%";
+static char *sccsid = "@(#)cu.c        4.3 (Berkeley) 81/02/28";
 #include <stdio.h>
 #include <signal.h>
 #include <sgtty.h>
@@ -112,8 +112,12 @@ char *av[];
        int speed;
        char *telno;
        struct sgttyb stbuf;
+       int cleanup();
 
        signal(SIGALRM, sig14);
+       signal(SIGINT, cleanup);
+       signal(SIGHUP, cleanup);
+       signal(SIGQUIT, cleanup);
        if (ac < 2) {
                prf(connmsg[8]);
                exit(8);
@@ -594,7 +598,8 @@ rd()
 agin:
        while (rdc(ln) == 1) {
                if (!slnt) wrc(1);
-               *p++=c;
+               if (p < &b[600])
+                       *p++=c;
                if (c!='\n') continue;
                q=p; 
                p=b;