+ return (ctime(&tv.tv_sec));
+#endif /* sgi */
+}
+
+void
+addnetname(name)
+ char *name;
+{
+ register struct nets **netlist = &nets;
+
+ while (*netlist)
+ netlist = &((*netlist)->next);
+ *netlist = (struct nets *)malloc(sizeof **netlist);
+ if (*netlist == 0) {
+ fprintf(stderr,"malloc failed\n");
+ exit(1);
+ }
+ bzero((char *)*netlist, sizeof(**netlist));
+ (*netlist)->name = name;
+}
+
+/* note a host as trustworthy */
+static void
+add_good_host(name, perm)
+ char *name;
+ int perm; /* 1=not part of the netgroup */
+{
+ register struct goodhost *ghp;
+ register struct hostent *hentp;
+
+ ghp = (struct goodhost*)malloc(sizeof(*ghp));
+ if (!ghp) {
+ syslog(LOG_ERR, "malloc failed");
+ exit(1);
+ }
+
+ bzero((char*)ghp, sizeof(*ghp));
+ (void)strncpy(&ghp->name[0], name, sizeof(ghp->name));
+ ghp->next = goodhosts;
+ ghp->perm = perm;
+ goodhosts = ghp;
+
+ hentp = gethostbyname(name);
+ if (0 == hentp && perm)
+ (void)fprintf(stderr, "unknown host %s\n", name);
+}
+
+
+/* update our image of the net-group of trustworthy hosts
+ */
+void
+get_goodgroup(force)
+ int force;
+{
+# define NG_DELAY (30*60*CLK_TCK) /* 30 minutes */
+ static unsigned long last_update = -NG_DELAY;
+ unsigned long new_update;
+ struct hosttbl *htp;
+ struct goodhost *ghp, **ghpp;
+ char *mach, *usr, *dom;
+ struct tms tm;
+
+
+ /* if no netgroup, then we are finished */
+ if (goodgroup == 0 || !Mflag)
+ return;
+
+ /* Do not chatter with the netgroup master too often.
+ */
+ new_update = times(&tm);
+ if (new_update < last_update + NG_DELAY
+ && !force)
+ return;
+ last_update = new_update;
+
+ /* forget the old temporary entries */
+ ghpp = &goodhosts;
+ while (0 != (ghp = *ghpp)) {
+ if (!ghp->perm) {
+ *ghpp = ghp->next;
+ free((char*)ghp);
+ } else {
+ ghpp = &ghp->next;
+ }
+ }
+
+#ifdef HAVENIS
+ /* quit now if we are not one of the trusted masters
+ */
+ if (!innetgr(goodgroup, &hostname[0], 0,0)) {
+ if (trace)
+ (void)fprintf(fd, "get_goodgroup: %s not in %s\n",
+ &hostname[0], goodgroup);
+ return;
+ }
+ if (trace)
+ (void)fprintf(fd, "get_goodgroup: %s in %s\n",
+ &hostname[0], goodgroup);
+
+ /* mark the entire netgroup as trusted */
+ (void)setnetgrent(goodgroup);
+ while (getnetgrent(&mach,&usr,&dom)) {
+ if (0 != mach)
+ add_good_host(mach,0);
+ }
+ (void)endnetgrent();
+
+ /* update list of slaves */
+ for (htp = self.l_fwd; htp != &self; htp = htp->l_fwd) {
+ htp->good = good_host_name(&htp->name[0]);
+ }
+#endif /* HAVENIS */
+}
+
+
+/* see if a machine is trustworthy
+ */
+int /* 1=trust hp to change our date */
+good_host_name(name)
+ char *name;
+{
+ register struct goodhost *ghp = goodhosts;
+ register char c;
+
+ if (!ghp || !Mflag) /* trust everyone if no one named */
+ return 1;
+
+ c = *name;
+ do {
+ if (c == ghp->name[0]
+ && !strcasecmp(name, ghp->name))
+ return 1; /* found him, so say so */
+ } while (0 != (ghp = ghp->next));
+
+ if (!strcasecmp(name,hostname)) /* trust ourself */
+ return 1;
+
+ return 0; /* did not find him */
projects / unix-history / blobdiff