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, 259 insertions, 0 deletions

diff --git a/crypto/kerberosIV/lib/kdb/krb_lib.c b/crypto/kerberosIV/lib/kdb/krb_lib.c
new file mode 100644
index 0000000..19bf316
--- /dev/null
+++ b/crypto/kerberosIV/lib/kdb/krb_lib.c
@@ -0,0 +1,259 @@
+/* 
+  Copyright (C) 1989 by the Massachusetts Institute of Technology
+
+   Export of this software from the United States of America is assumed
+   to require a specific license from the United States Government.
+   It is the responsibility of any person or organization contemplating
+   export to obtain such a license before exporting.
+
+WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+distribute this software and its documentation for any purpose and
+without fee is hereby granted, provided that the above copyright
+notice appear in all copies and that both that copyright notice and
+this permission notice appear in supporting documentation, and that
+the name of M.I.T. not be used in advertising or publicity pertaining
+to distribution of the software without specific, written prior
+permission.  M.I.T. makes no representations about the suitability of
+this software for any purpose.  It is provided "as is" without express
+or implied warranty.
+
+  */
+
+#include "kdb_locl.h"
+
+RCSID("$Id: krb_lib.c,v 1.11 1997/05/07 01:36:08 assar Exp $");
+
+#ifdef DEBUG
+extern int debug;
+extern char *progname;
+long    kerb_debug;
+#endif
+
+static int init = 0;
+
+/*
+ * initialization routine for data base 
+ */
+
+int
+kerb_init(void)
+{
+#ifdef DEBUG
+    if (!init) {
+	char *dbg = getenv("KERB_DBG");
+	if (dbg)
+	    sscanf(dbg, "%d", &kerb_debug);
+	init = 1;
+    }
+#endif
+    kerb_db_init();
+
+#ifdef CACHE
+    kerb_cache_init();
+#endif
+
+    /* successful init, return 0, else errcode */
+    return (0);
+}
+
+/*
+ * finalization routine for database -- NOTE: MUST be called by any
+ * program using kerb_init.  ALSO will have to be modified to finalize
+ * caches, if they're ever really implemented. 
+ */
+
+void
+kerb_fini(void)
+{
+    kerb_db_fini();
+}
+
+
+int
+kerb_delete_principal(char *name, char *inst)
+{
+    int ret;
+    
+    if (!init)
+	kerb_init();
+
+    ret = kerb_db_delete_principal(name, inst);
+#ifdef CACHE
+    if(ret == 0){
+	kerb_cache_delete_principal(name, inst);
+    }
+#endif
+    return ret;
+}
+
+
+/*
+ * look up a principal in the cache or data base returns number of
+ * principals found 
+ */
+
+int
+kerb_get_principal(char *name, char *inst, Principal *principal,
+		   unsigned int max, int *more)
+                 		/* could have wild card */
+                 		/* could have wild card */
+                         
+                     		/* max number of name structs to return */
+                 		/* more tuples than room for */
+
+{
+    int     found = 0;
+#ifdef CACHE
+    static int wild = 0;
+#endif
+    if (!init)
+	kerb_init();
+
+#ifdef DEBUG
+    if (kerb_debug & 1)
+	fprintf(stderr, "\n%s: kerb_get_principal for %s %s max = %d\n",
+	    progname, name, inst, max);
+#endif
+    
+    /*
+     * if this is a request including a wild card, have to go to db
+     * since the cache may not be exhaustive. 
+     */
+
+    /* clear the principal area */
+    memset(principal, 0, max * sizeof(Principal));
+
+#ifdef CACHE
+    /*
+     * so check to see if the name contains a wildcard "*" or "?", not
+     * preceeded by a backslash. 
+     */
+    wild = 0;
+    if (index(name, '*') || index(name, '?') ||
+	index(inst, '*') || index(inst, '?'))
+	wild = 1;
+
+    if (!wild) {
+	/* try the cache first */
+	found = kerb_cache_get_principal(name, inst, principal, max, more);
+	if (found)
+	    return (found);
+    }
+#endif
+    /* If we didn't try cache, or it wasn't there, try db */
+    found = kerb_db_get_principal(name, inst, principal, max, more);
+    /* try to insert principal(s) into cache if it was found */
+#ifdef CACHE
+    if (found) {
+	kerb_cache_put_principal(principal, found);
+    }
+#endif
+    return (found);
+}
+
+/* principals */
+int
+kerb_put_principal(Principal *principal, unsigned int n)
+                         
+                   		/* number of principal structs to write */
+{
+    struct tm *tp;
+
+    /* set mod date */
+    principal->mod_date = time((time_t *)0);
+    /* and mod date string */
+
+    tp = k_localtime(&principal->mod_date);
+    snprintf(principal->mod_date_txt,
+	     sizeof(principal->mod_date_txt),
+	     "%4d-%2d-%2d",
+	     tp->tm_year + 1900,
+	     tp->tm_mon + 1, tp->tm_mday); /* January is 0, not 1 */
+#ifdef DEBUG
+    if (kerb_debug & 1) {
+	int i;
+	fprintf(stderr, "\nkerb_put_principal...");
+	for (i = 0; i < n; i++) {
+	    krb_print_principal(&principal[i]);
+	}
+    }
+#endif
+    /* write database */
+    if (kerb_db_put_principal(principal, n) < 0) {
+#ifdef DEBUG
+	if (kerb_debug & 1)
+	    fprintf(stderr, "\n%s: kerb_db_put_principal err", progname);
+	/* watch out for cache */
+#endif
+	return -1;
+    }
+#ifdef CACHE
+    /* write cache */
+    if (!kerb_cache_put_principal(principal, n)) {
+#ifdef DEBUG
+	if (kerb_debug & 1)
+	    fprintf(stderr, "\n%s: kerb_cache_put_principal err", progname);
+#endif
+	return -1;
+    }
+#endif
+    return 0;
+}
+
+int
+kerb_get_dba(char *name, char *inst, Dba *dba, unsigned int max, int *more)
+                 		/* could have wild card */
+                 		/* could have wild card */
+                
+                     		/* max number of name structs to return */
+                 		/* more tuples than room for */
+
+{
+    int     found = 0;
+#ifdef CACHE
+    static int wild = 0;
+#endif
+    if (!init)
+	kerb_init();
+
+#ifdef DEBUG
+    if (kerb_debug & 1)
+	fprintf(stderr, "\n%s: kerb_get_dba for %s %s max = %d\n",
+	    progname, name, inst, max);
+#endif
+    /*
+     * if this is a request including a wild card, have to go to db
+     * since the cache may not be exhaustive. 
+     */
+
+    /* clear the dba area */
+    memset(dba, 0, max * sizeof(Dba));
+
+#ifdef CACHE
+    /*
+     * so check to see if the name contains a wildcard "*" or "?", not
+     * preceeded by a backslash. 
+     */
+
+    wild = 0;
+    if (index(name, '*') || index(name, '?') ||
+	index(inst, '*') || index(inst, '?'))
+	wild = 1;
+
+    if (!wild) {
+	/* try the cache first */
+	found = kerb_cache_get_dba(name, inst, dba, max, more);
+	if (found)
+	    return (found);
+    }
+#endif
+    /* If we didn't try cache, or it wasn't there, try db */
+    found = kerb_db_get_dba(name, inst, dba, max, more);
+#ifdef CACHE
+    /* try to insert dba(s) into cache if it was found */
+    if (found) {
+	kerb_cache_put_dba(dba, found);
+    }
+#endif
+    return (found);
+}