- updated to 9.5.0a6 which contains fixes for CVE-2007-2925 and

    CVE-2007-2926
- fixed building on 64bits

1 files changed, 409 insertions, 0 deletions

diff --git a/ldap2zone.c b/ldap2zone.c
new file mode 100644
index 0000000..58fc515
--- /dev/null
+++ b/ldap2zone.c
@@ -0,0 +1,409 @@
+/*
+ * Copyright (C) 2004, 2005 Stig Venaas <venaas@uninett.no>
+ * $Id: ldap2zone.c,v 0.1 2005/04/23 21:30:12 venaas Exp $
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include <ldap.h>
+
+struct string {
+    void *data;
+    size_t len;
+};
+
+struct assstack_entry {
+    struct string key;
+    struct string val;
+    struct assstack_entry *next;
+};
+
+struct assstack_entry *assstack_find(struct assstack_entry *stack, struct string *key);
+void assstack_push(struct assstack_entry **stack, struct assstack_entry *item);
+void assstack_insertbottom(struct assstack_entry **stack, struct assstack_entry *item);
+void printsoa(struct string *soa);
+void printrrs(char *defaultttl, struct assstack_entry *item);
+void print_zone(char *defaultttl, struct assstack_entry *stack);
+void usage(char *name);
+void err(char *name, const char *msg);
+int putrr(struct assstack_entry **stack, struct berval *name, char *type, char *ttl, struct berval *val);
+
+struct assstack_entry *assstack_find(struct assstack_entry *stack, struct string *key) {
+    for (; stack; stack = stack->next)
+	if (stack->key.len == key->len && !memcmp(stack->key.data, key->data, key->len))
+	    return stack;
+    return NULL;
+}
+
+void assstack_push(struct assstack_entry **stack, struct assstack_entry *item) {
+    item->next = *stack;
+    *stack = item;
+}
+
+void assstack_insertbottom(struct assstack_entry **stack, struct assstack_entry *item) {
+    struct assstack_entry *p;
+    
+    item->next = NULL;
+    if (!*stack) {
+	*stack = item;
+	return;
+    }
+    /* find end, should keep track of end somewhere */
+    /* really a queue, not a stack */
+    p = *stack;
+    while (p->next)
+	p = p->next;
+    p->next = item;
+}
+
+void printsoa(struct string *soa) {
+    char *s;
+    size_t i;
+    
+    s = (char *)soa->data;
+    i = 0;
+    while (i < soa->len) {
+	putchar(s[i]);
+	if (s[i++] == ' ')
+	    break;
+    }
+    while (i < soa->len) {
+	putchar(s[i]);
+	if (s[i++] == ' ')
+	    break;
+    } 
+    printf("(\n\t\t\t\t");
+    while (i < soa->len) {
+	putchar(s[i]);
+	if (s[i++] == ' ')
+	    break;
+    }
+    printf("; Serialnumber\n\t\t\t\t");
+    while (i < soa->len) {
+	if (s[i] == ' ')
+	    break;
+	putchar(s[i++]);
+    }
+    i++;
+    printf("\t; Refresh\n\t\t\t\t");
+    while (i < soa->len) {
+	if (s[i] == ' ')
+	    break;
+	putchar(s[i++]);
+    }
+    i++;
+    printf("\t; Retry\n\t\t\t\t");
+    while (i < soa->len) {
+	if (s[i] == ' ')
+	    break;
+	putchar(s[i++]);
+    }
+    i++;
+    printf("\t; Expire\n\t\t\t\t");
+    while (i < soa->len) {
+	putchar(s[i++]);
+    }
+    printf(" )\t; Minimum TTL\n");
+}
+
+void printrrs(char *defaultttl, struct assstack_entry *item) {
+    struct assstack_entry *stack;
+    char *s;
+    int first;
+    size_t i;
+    char *ttl, *type;
+    int top;
+    
+    s = (char *)item->key.data;
+
+    if (item->key.len == 1 && *s == '@') {
+	top = 1;
+	printf("@\t");
+    } else {
+	top = 0;
+	for (i = 0; i < item->key.len; i++)
+	    putchar(s[i]);
+	if (item->key.len < 8)
+	    putchar('\t');
+	putchar('\t');
+    }
+    
+    first = 1;
+    for (stack = (struct assstack_entry *) item->val.data; stack; stack = stack->next) {
+	ttl = (char *)stack->key.data;
+	s = strchr(ttl, ' ');
+	*s++ = '\0';
+	type = s;
+	
+	if (first)
+	    first = 0;
+        else
+	    printf("\t\t");
+	    
+	if (strcmp(defaultttl, ttl))
+	    printf("%s", ttl);
+	putchar('\t');
+	
+	if (top) {
+	    top = 0;
+	    printf("IN\t%s\t", type);
+	    /* Should always be SOA here */
+	    if (!strcmp(type, "SOA")) {
+		printsoa(&stack->val);
+		continue;
+	    }
+	} else
+	    printf("%s\t", type);
+
+	s = (char *)stack->val.data;
+	for (i = 0; i < stack->val.len; i++)
+	    putchar(s[i]);
+	putchar('\n');
+    }
+}
+
+void print_zone(char *defaultttl, struct assstack_entry *stack) {
+    printf("$TTL %s\n", defaultttl);
+    for (; stack; stack = stack->next)
+	printrrs(defaultttl, stack);
+};
+
+void usage(char *name) {
+    fprintf(stderr, "Usage:%s zone-name LDAP-URL default-ttl [serial]\n", name);
+    exit(1);
+};
+
+void err(char *name, const char *msg) {
+    fprintf(stderr, "%s: %s\n", name, msg);
+    exit(1);
+};
+
+int putrr(struct assstack_entry **stack, struct berval *name, char *type, char *ttl, struct berval *val) {
+    struct string key;
+    struct assstack_entry *rr, *rrdata;
+    
+    /* Do nothing if name or value have 0 length */
+    if (!name->bv_len || !val->bv_len)
+	return 0;
+
+    /* see if already have an entry for this name */
+    key.len = name->bv_len;
+    key.data = name->bv_val;
+
+    rr = assstack_find(*stack, &key);
+    if (!rr) {
+	/* Not found, create and push new entry */
+	rr = (struct assstack_entry *) malloc(sizeof(struct assstack_entry));
+	if (!rr)
+	    return -1;
+	rr->key.len = name->bv_len;
+	rr->key.data = (void *) malloc(rr->key.len);
+	if (!rr->key.data) {
+	    free(rr);
+	    return -1;
+	}
+	memcpy(rr->key.data, name->bv_val, name->bv_len);
+	rr->val.len = sizeof(void *);
+	rr->val.data = NULL;
+	if (name->bv_len == 1 && *(char *)name->bv_val == '@')
+	    assstack_push(stack, rr);
+	else
+	    assstack_insertbottom(stack, rr);
+    }
+
+    rrdata = (struct assstack_entry *) malloc(sizeof(struct assstack_entry));
+    if (!rrdata) {
+	free(rr->key.data);
+	free(rr);
+	return -1;
+    }
+    rrdata->key.len = strlen(type) + strlen(ttl) + 1;
+    rrdata->key.data = (void *) malloc(rrdata->key.len);
+    if (!rrdata->key.data) {
+	free(rrdata);
+	free(rr->key.data);
+	free(rr);
+	return -1;
+    }
+    sprintf((char *)rrdata->key.data, "%s %s", ttl, type);
+	
+    rrdata->val.len = val->bv_len;
+    rrdata->val.data = (void *) malloc(val->bv_len);
+    if (!rrdata->val.data) {
+	free(rrdata->key.data);
+	free(rrdata);
+	free(rr->key.data);
+	free(rr);
+	return -1;
+    }
+    memcpy(rrdata->val.data, val->bv_val, val->bv_len);
+
+    if (!strcmp(type, "SOA"))
+	assstack_push((struct assstack_entry **) &(rr->val.data), rrdata);
+    else
+	assstack_insertbottom((struct assstack_entry **) &(rr->val.data), rrdata);
+    return 0;
+}
+
+int main(int argc, char **argv) {
+    char *s, *hostporturl, *base = NULL;
+    char *ttl, *defaultttl;
+    LDAP *ld;
+    char *fltr = NULL;
+    LDAPMessage *res, *e;
+    char *a, **ttlvals, **soavals, *serial;
+    struct berval **vals, **names;
+    char type[64];
+    BerElement *ptr;
+    int i, j, rc, msgid;
+    struct assstack_entry *zone = NULL;
+    
+    if (argc < 4 || argc > 5)
+        usage(argv[0]);
+
+    hostporturl = argv[2];
+
+    if (hostporturl != strstr( hostporturl, "ldap"))
+	err(argv[0], "Not an LDAP URL");
+
+    s = strchr(hostporturl, ':');
+
+    if (!s || strlen(s) < 3 || s[1] != '/' || s[2] != '/')
+	err(argv[0], "Not an LDAP URL");
+
+    s = strchr(s+3, '/');
+    if (s) {
+	*s++ = '\0';
+	base = s;
+	s = strchr(base, '?');
+	if (s)
+	    err(argv[0], "LDAP URL can only contain host, port and base");
+    }
+
+    defaultttl = argv[3];
+    
+    rc = ldap_initialize(&ld, hostporturl);
+    if (rc != LDAP_SUCCESS)
+	err(argv[0], "ldap_initialize() failed");
+
+    if (argc == 5) {
+	/* serial number specified, check if different from one in SOA */
+	fltr = (char *)malloc(strlen(argv[1]) + strlen("(&(relativeDomainName=@)(zoneName=))") + 1);
+	sprintf(fltr, "(&(relativeDomainName=@)(zoneName=%s))", argv[1]);
+	msgid = ldap_search(ld, base, LDAP_SCOPE_SUBTREE, fltr, NULL, 0);
+	if (msgid == -1)
+	    err(argv[0], "ldap_search() failed");
+
+	while ((rc = ldap_result(ld, msgid, 0, NULL, &res)) != LDAP_RES_SEARCH_RESULT ) {
+	    /* not supporting continuation references at present */
+	    if (rc != LDAP_RES_SEARCH_ENTRY)
+		err(argv[0], "ldap_result() returned cont.ref? Exiting");
+
+	    /* only one entry per result message */
+	    e = ldap_first_entry(ld, res);
+	    if (e == NULL) {
+		ldap_msgfree(res);
+		err(argv[0], "ldap_first_entry() failed");
+	    }
+	
+	    soavals = ldap_get_values(ld, e, "SOARecord");
+	    if (soavals)
+		break;
+	}
+
+	ldap_msgfree(res);
+	if (!soavals) {
+		err(argv[0], "No SOA Record found");
+	}
+	
+	/* We have a SOA, compare serial numbers */
+	/* Only checkinf first value, should be only one */
+	s = strchr(soavals[0], ' ');
+	s++;
+	s = strchr(s, ' ');
+	s++;
+	serial = s;
+	s = strchr(s, ' ');
+	*s = '\0';
+	if (!strcmp(serial, argv[4])) {
+	    ldap_value_free(soavals);
+	    err(argv[0], "serial numbers match");
+	}
+	ldap_value_free(soavals);
+    }
+
+    if (!fltr)
+	fltr = (char *)malloc(strlen(argv[1]) + strlen("(zoneName=)") + 1);
+    if (!fltr)
+	err(argv[0], "Malloc failed");
+    sprintf(fltr, "(zoneName=%s)", argv[1]);
+
+    msgid = ldap_search(ld, base, LDAP_SCOPE_SUBTREE, fltr, NULL, 0);
+    if (msgid == -1)
+	err(argv[0], "ldap_search() failed");
+
+    while ((rc = ldap_result(ld, msgid, 0, NULL, &res)) != LDAP_RES_SEARCH_RESULT ) {
+	/* not supporting continuation references at present */
+	if (rc != LDAP_RES_SEARCH_ENTRY)
+	    err(argv[0], "ldap_result() returned cont.ref? Exiting");
+
+	/* only one entry per result message */
+	e = ldap_first_entry(ld, res);
+	if (e == NULL) {
+	    ldap_msgfree(res);
+	    err(argv[0], "ldap_first_entry() failed");
+	}
+	
+	names = ldap_get_values_len(ld, e, "relativeDomainName");
+	if (!names)
+	    continue;
+	
+	ttlvals = ldap_get_values(ld, e, "dNSTTL");
+	ttl = ttlvals ? ttlvals[0] : defaultttl;
+
+	for (a = ldap_first_attribute(ld, e, &ptr); a != NULL; a = ldap_next_attribute(ld, e, ptr)) {
+	    char *s;
+
+	    for (s = a; *s; s++)
+		*s = toupper(*s);
+	    s = strstr(a, "RECORD");
+	    if ((s == NULL) || (s == a) || (s - a >= (signed int)sizeof(type))) {
+		ldap_memfree(a);
+		continue;
+	    }
+			
+	    strncpy(type, a, s - a);
+	    type[s - a] = '\0';
+	    vals = ldap_get_values_len(ld, e, a);
+	    if (vals) {
+		for (i = 0; vals[i]; i++)
+		    for (j = 0; names[j]; j++)
+			if (putrr(&zone, names[j], type, ttl, vals[i]))
+			    err(argv[0], "malloc failed");
+		ldap_value_free_len(vals);
+	    }
+	    ldap_memfree(a);
+	}
+
+	if (ptr)
+	    ber_free(ptr, 0);
+	if (ttlvals)
+	    ldap_value_free(ttlvals);
+	ldap_value_free_len(names);
+	/* free this result */
+	ldap_msgfree(res);
+    }
+
+    /* free final result */
+    ldap_msgfree(res);
+
+    print_zone(defaultttl, zone);
+    return 0;
+}