Initial import of KTH eBones. This has been cleaned up to only include

the "core" Kerberos functionality. The rest of the userland will get their
own changes later.

1 files changed, 146 insertions, 0 deletions

diff --git a/crypto/kerberosIV/kadmin/new_pwd.c b/crypto/kerberosIV/kadmin/new_pwd.c
new file mode 100644
index 0000000..88fb7a9
--- /dev/null
+++ b/crypto/kerberosIV/kadmin/new_pwd.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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.
+ * 
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the Kungliga Tekniska
+ *      Högskolan and its contributors.
+ * 
+ * 4. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 "kadm_locl.h"
+
+RCSID("$Id: new_pwd.c,v 1.11 1997/05/02 14:28:54 assar Exp $");
+
+#ifdef NOENCRYPTION
+#define read_long_pw_string placebo_read_pw_string
+#else
+#define read_long_pw_string des_read_pw_string
+#endif
+
+static char *
+check_pw (char *pword)
+{
+    if (strlen(pword) == 0)
+	return "Null passwords are not allowed - Please enter a longer password.";
+    
+    if (strlen(pword) < MIN_KPW_LEN)
+	return "Password is to short - Please enter a longer password.";
+    
+    /* Don't allow all lower case passwords regardless of length */
+    {
+	char *t;
+	for (t = pword; *t && islower(*t); t++)
+	    ;
+	if (*t == 0)
+	    return "Please don't use an all-lower case password.\n"
+	      "\tUnusual capitalization, delimiter characters or "
+	      "digits are suggested.";
+    }
+
+    return NULL;
+}
+
+int
+get_pw_new_pwd(char *pword, int pwlen, krb_principal *pr, int print_realm)
+{
+    char ppromp[40+ANAME_SZ+INST_SZ+REALM_SZ]; /* for the password prompt */
+    char npromp[40+ANAME_SZ+INST_SZ+REALM_SZ]; /* for the password prompt */
+    
+    char p[MAX_K_NAME_SZ];
+    
+    char local_realm[REALM_SZ];
+    int status;
+    char *expl;
+    
+    /*
+     * We don't care about failure; this is to determine whether or
+     * not to print the realm in the prompt for a new password. 
+     */
+    krb_get_lrealm(local_realm, 1);
+    
+    if (strcmp(local_realm, pr->realm))
+	print_realm++;
+    
+    {
+	char *q;
+	krb_unparse_name_r(pr, p);
+	if(print_realm == 0 && (q = strrchr(p, '@')))
+	    *q = 0;
+    }
+
+    snprintf(ppromp, sizeof(ppromp), "Old password for %s:", p);
+    if (read_long_pw_string(pword, pwlen-1, ppromp, 0)) {
+	fprintf(stderr, "Error reading old password.\n");
+	return -1;
+    }
+
+    status = krb_get_pw_in_tkt(pr->name, pr->instance, pr->realm, 
+			       PWSERV_NAME, KADM_SINST, 1, pword);
+    if (status != KSUCCESS) {
+	if (status == INTK_BADPW) {
+	    printf("Incorrect old password.\n");
+	    return -1;
+	}
+	else {
+	    fprintf(stderr, "Kerberos error: %s\n", krb_get_err_text(status));
+	    return -1;
+	}
+    }
+    memset(pword, 0, pwlen);
+    
+    do {
+	char verify[MAX_KPW_LEN];
+	snprintf(npromp, sizeof(npromp), "New Password for %s:",p);
+	if (read_long_pw_string(pword, pwlen-1, npromp, 0)) {
+	    fprintf(stderr,
+		    "Error reading new password, password unchanged.\n");
+	    return -1;
+        }
+	expl = check_pw (pword);
+	if (expl) {
+	    printf("\n\t%s\n\n", expl);
+	    continue;
+	}
+	/* Now we got an ok password, verify it. */
+	snprintf(npromp, sizeof(npromp), "Verifying New Password for %s:", p);
+	if (read_long_pw_string(verify, MAX_KPW_LEN-1, npromp, 0)) {
+	    fprintf(stderr,
+		    "Error reading new password, password unchanged.\n");
+	    return -1;
+        }
+	if (strcmp(pword, verify) != 0) {
+	    printf("Verify failure - try again\n");
+	    expl = "";		/* continue */
+	}
+    } while (expl);
+    return 0;
+}