[2236] in Kerberos-V5-bugs
krb5b7: Add a "forward" command to telnet
daemon@ATHENA.MIT.EDU (Jonathan I. Kamens)
Tue Sep 17 16:57:25 1996
Date: Tue, 17 Sep 1996 16:55:10 -0400
From: "Jonathan I. Kamens" <jik@jik.tiac.net>
To: krb5-bugs@MIT.EDU, kerberos@MIT.EDU
The patch below adds a "forward" command to telnet, so that ticket
forwarding parameters can be modified after starting telnet and/or in
the .telnetrc file.
This patch was implemented by Marc Horowitz; I'm not claiming
authorship for it, just submitting it from OV's source tree so that it
can be integrated back into the MIT release :-).
--- telnet/commands.c 1996/09/17 19:54:21 1.1
+++ telnet/commands.c 1996/09/17 19:54:38 1.2
@@ -2113,6 +2113,115 @@
}
#endif /* ENCRYPTION */
+#if defined(FORWARD)
+/*
+ * The FORWARD command.
+ */
+
+
+extern int forward_flags;
+
+struct forwlist {
+ char *name;
+ char *help;
+ int (*handler)();
+ int f_flags;
+};
+
+static int
+ forw_status P((void)),
+ forw_set P((int)),
+ forw_help P((void));
+
+struct forwlist ForwList[] = {
+ { "status", "Display current status of credential forwarding",
+ forw_status, 0 },
+ { "disable", "Disable credential forwarding",
+ forw_set, 0 },
+ { "enable", "Enable credential forwarding",
+ forw_set,
+ OPTS_FORWARD_CREDS },
+ { "forwardable", "Enable credential forwarding of forwardable credentials",
+ forw_set,
+ OPTS_FORWARD_CREDS |
+ OPTS_FORWARDABLE_CREDS },
+ { "help", 0, forw_help, 0 },
+ { "?", "Print help information", forw_help, 0 },
+ { 0 },
+};
+
+ static int
+forw_status()
+{
+ if (forward_flags & OPTS_FORWARD_CREDS) {
+ if (forward_flags & OPTS_FORWARDABLE_CREDS) {
+ printf("Credential forwarding of forwardable credentials enabled\n");
+ } else {
+ printf("Credential forwarding enabled\n");
+ }
+ } else {
+ printf("Credential forwarding disabled\n");
+ }
+ return(0);
+}
+
+forw_set(f_flags)
+ int f_flags;
+{
+ forward_flags = f_flags;
+ return(0);
+}
+
+ static int
+forw_help()
+{
+ struct forwlist *c;
+
+ for (c = ForwList; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+ return 0;
+}
+
+forw_cmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct forwlist *c;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'forward' command. 'forward ?' for help.\n");
+ return 0;
+ }
+
+ c = (struct forwlist *)
+ genget(argv[1], (char **) ForwList, sizeof(struct forwlist));
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('forw ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('forw ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (argc != 2) {
+ fprintf(stderr,
+ "No arguments needed to 'forward %s' command. 'forward ?' for help.\n",
+ c->name);
+ return 0;
+ }
+ return((*c->handler)(c->f_flags));
+}
+#endif
+
#if defined(unix) && defined(TN3270)
static void
filestuff(fd)
@@ -2485,6 +2594,9 @@
#ifdef ENCRYPTION
encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)",
#endif /* ENCRYPTION */
+#ifdef FORWARD
+ forwardhelp[] = "turn on (off) credential forwarding ('forward ?' for more)",
+#endif
#if defined(unix)
zhelp[] = "suspend telnet",
#endif /* defined(unix) */
@@ -2516,6 +2628,9 @@
#ifdef ENCRYPTION
{ "encrypt", encrypthelp, encrypt_cmd, 0 },
#endif /* ENCRYPTION */
+#ifdef FORWARD
+ { "forward", forwardhelp, forw_cmd, 0 },
+#endif
#if defined(unix)
{ "z", zhelp, suspend, 0 },
#endif /* defined(unix) */
