1 files changed, 158 insertions, 0 deletions

diff --git a/radix.c b/radix.c
new file mode 100644
index 000000000..c680d6bf3
--- /dev/null
+++ b/radix.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 1999 Dug Song.  All rights reserved.
+ * Copyright (c) 2002 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+#include "uuencode.h"
+
+RCSID("$OpenBSD: radix.c,v 1.22 2002/09/09 14:54:15 markus Exp $");
+
+#ifdef AFS
+#include <krb.h>
+
+#include <radix.h>
+#include "bufaux.h"
+
+int
+creds_to_radix(CREDENTIALS *creds, u_char *buf, size_t buflen)
+{
+        Buffer b;
+        int ret;
+
+        buffer_init(&b);
+
+        buffer_put_char(&b, 1); /* version */
+
+        buffer_append(&b, creds->service, strlen(creds->service));
+        buffer_put_char(&b, '\0');
+        buffer_append(&b, creds->instance, strlen(creds->instance));
+        buffer_put_char(&b, '\0');
+        buffer_append(&b, creds->realm, strlen(creds->realm));
+        buffer_put_char(&b, '\0');
+        buffer_append(&b, creds->pname, strlen(creds->pname));
+        buffer_put_char(&b, '\0');
+        buffer_append(&b, creds->pinst, strlen(creds->pinst));
+        buffer_put_char(&b, '\0');
+
+        /* Null string to repeat the realm. */
+        buffer_put_char(&b, '\0');
+
+        buffer_put_int(&b, creds->issue_date);
+        buffer_put_int(&b, krb_life_to_time(creds->issue_date,
+            creds->lifetime));
+        buffer_append(&b, creds->session, sizeof(creds->session));
+        buffer_put_short(&b, creds->kvno);
+
+        /* 32 bit size + data */
+        buffer_put_string(&b, creds->ticket_st.dat, creds->ticket_st.length);
+
+        ret = uuencode(buffer_ptr(&b), buffer_len(&b), (char *)buf, buflen);
+
+        buffer_free(&b);
+        return ret;
+}
+
+#define GETSTRING(b, t, tlen) \
+        do { \
+                int i, found = 0; \
+                for (i = 0; i < tlen; i++) { \
+                        if (buffer_len(b) == 0) \
+                                goto done; \
+                        t[i] = buffer_get_char(b); \
+                        if (t[i] == '\0') { \
+                                found = 1; \
+                                break; \
+                        } \
+                } \
+                if (!found) \
+                        goto done; \
+        } while(0)
+
+int
+radix_to_creds(const char *buf, CREDENTIALS *creds)
+{
+        Buffer b;
+        u_char *space;
+        char c, version, *p;
+        u_int endTime, len;
+        int blen, ret;
+
+        ret = 0;
+        blen = strlen(buf);
+
+        /* sanity check for size */
+        if (blen > 8192)
+                return 0;
+
+        buffer_init(&b);
+        space = buffer_append_space(&b, blen);
+
+        /* check version and length! */
+        len = uudecode(buf, space, blen);
+        if (len < 1)
+                goto done;
+
+        version = buffer_get_char(&b);
+
+        GETSTRING(&b, creds->service, sizeof creds->service);
+        GETSTRING(&b, creds->instance, sizeof creds->instance);
+        GETSTRING(&b, creds->realm, sizeof creds->realm);
+        GETSTRING(&b, creds->pname, sizeof creds->pname);
+        GETSTRING(&b, creds->pinst, sizeof creds->pinst);
+
+        if (buffer_len(&b) == 0)
+                goto done;
+
+        /* Ignore possibly different realm. */
+        while (buffer_len(&b) > 0 && (c = buffer_get_char(&b)) != '\0')
+                ;
+
+        if (buffer_len(&b) == 0)
+                goto done;
+
+        creds->issue_date = buffer_get_int(&b);
+
+        endTime = buffer_get_int(&b);
+        creds->lifetime = krb_time_to_life(creds->issue_date, endTime);
+
+        len = buffer_len(&b);
+        if (len < sizeof(creds->session))
+                goto done;
+        memcpy(&creds->session, buffer_ptr(&b), sizeof(creds->session));
+        buffer_consume(&b, sizeof(creds->session));
+
+        creds->kvno = buffer_get_short(&b);
+
+        p = buffer_get_string(&b, &len);
+        if (len < 0 || len > sizeof(creds->ticket_st.dat))
+                goto done;
+        memcpy(&creds->ticket_st.dat, p, len);
+        creds->ticket_st.length = len;
+
+        ret = 1;
+done:
+        buffer_free(&b);
+        return ret;
+}
+#endif /* AFS */