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-rw-r--r--source4/lib/ldb/common/attrib_handlers.c27
-rw-r--r--source4/lib/ldb/common/ldb_attributes.c27
-rw-r--r--source4/lib/ldb/common/ldb_dn.c23
-rw-r--r--source4/lib/ldb/common/ldb_msg.c6
-rw-r--r--source4/lib/ldb/common/ldb_utf8.c12
5 files changed, 66 insertions, 29 deletions
diff --git a/source4/lib/ldb/common/attrib_handlers.c b/source4/lib/ldb/common/attrib_handlers.c
index 8ed2763d4d..fb57e2dadc 100644
--- a/source4/lib/ldb/common/attrib_handlers.c
+++ b/source4/lib/ldb/common/attrib_handlers.c
@@ -55,11 +55,12 @@ int ldb_handler_fold(struct ldb_context *ldb, void *mem_ctx,
{
char *s, *t;
int l;
+
if (!in || !out || !(in->data)) {
return -1;
}
- out->data = (uint8_t *)ldb_casefold(ldb, mem_ctx, (const char *)(in->data));
+ out->data = (uint8_t *)ldb_casefold(ldb, mem_ctx, (const char *)(in->data), in->length);
if (out->data == NULL) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb_handler_fold: unable to casefold string [%s]", in->data);
return -1;
@@ -153,13 +154,14 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
const struct ldb_val *v1, const struct ldb_val *v2)
{
const char *s1=(const char *)v1->data, *s2=(const char *)v2->data;
+ size_t n1 = v1->length, n2 = v2->length;
const char *u1, *u2;
char *b1, *b2;
int ret;
- while (*s1 == ' ') s1++;
- while (*s2 == ' ') s2++;
+ while (*s1 == ' ' && n1) { s1++; n1--; };
+ while (*s2 == ' ' && n2) { s2++; n2--; };
/* TODO: make utf8 safe, possibly with helper function from application */
- while (*s1 && *s2) {
+ while (*s1 && *s2 && n1 && n2) {
/* the first 127 (0x7F) chars are ascii and utf8 guarantes they
* never appear in multibyte sequences */
if (((unsigned char)s1[0]) & 0x80) goto utf8str;
@@ -167,10 +169,11 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
if (toupper((unsigned char)*s1) != toupper((unsigned char)*s2))
break;
if (*s1 == ' ') {
- while (s1[0] == s1[1]) s1++;
- while (s2[0] == s2[1]) s2++;
+ while (s1[0] == s1[1] && n1) { s1++; n1--; }
+ while (s2[0] == s2[1] && n2) { s2++; n2--; }
}
s1++; s2++;
+ n1--; n2--;
}
if (! (*s1 && *s2)) {
/* check for trailing spaces only if one of the pointers
@@ -178,15 +181,18 @@ int ldb_comparison_fold(struct ldb_context *ldb, void *mem_ctx,
* can mistakenly match.
* ex. "domain users" <-> "domainUpdates"
*/
- while (*s1 == ' ') s1++;
- while (*s2 == ' ') s2++;
+ while (*s1 == ' ') { s1++; n1--; }
+ while (*s2 == ' ') { s2++; n2--; }
+ }
+ if (n1 != n2) {
+ return n1 - n2;
}
return (int)(toupper(*s1)) - (int)(toupper(*s2));
utf8str:
/* no need to recheck from the start, just from the first utf8 char found */
- b1 = ldb_casefold(ldb, mem_ctx, s1);
- b2 = ldb_casefold(ldb, mem_ctx, s2);
+ b1 = ldb_casefold(ldb, mem_ctx, s1, n1);
+ b2 = ldb_casefold(ldb, mem_ctx, s2, n2);
if (b1 && b2) {
/* Both strings converted correctly */
@@ -221,6 +227,7 @@ utf8str:
return ret;
}
+
/*
canonicalise a attribute in DN format
*/
diff --git a/source4/lib/ldb/common/ldb_attributes.c b/source4/lib/ldb/common/ldb_attributes.c
index effd93ae26..747f241781 100644
--- a/source4/lib/ldb/common/ldb_attributes.c
+++ b/source4/lib/ldb/common/ldb_attributes.c
@@ -51,6 +51,10 @@ int ldb_schema_attribute_add_with_syntax(struct ldb_context *ldb,
int i, n;
struct ldb_schema_attribute *a;
+ if (!syntax) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
n = ldb->schema.num_attributes + 1;
a = talloc_realloc(ldb, ldb->schema.attributes,
@@ -62,11 +66,24 @@ int ldb_schema_attribute_add_with_syntax(struct ldb_context *ldb,
ldb->schema.attributes = a;
for (i = 0; i < ldb->schema.num_attributes; i++) {
- if (ldb_attr_cmp(attribute, a[i].name) < 0) {
+ int cmp = ldb_attr_cmp(attribute, a[i].name);
+ if (cmp == 0) {
+ /* silently ignore attempts to overwrite fixed attributes */
+ if (a[i].flags & LDB_ATTR_FLAG_FIXED) {
+ return 0;
+ }
+ if (a[i].flags & LDB_ATTR_FLAG_ALLOCATED) {
+ talloc_free(discard_const_p(char, a[i].name));
+ }
+ /* To cancel out increment below */
+ ldb->schema.num_attributes--;
+ break;
+ } else if (cmp < 0) {
memmove(a+i+1, a+i, sizeof(*a) * (ldb->schema.num_attributes-i));
break;
}
}
+ ldb->schema.num_attributes++;
a[i].name = attribute;
a[i].flags = flags;
@@ -80,7 +97,6 @@ int ldb_schema_attribute_add_with_syntax(struct ldb_context *ldb,
}
}
- ldb->schema.num_attributes++;
return 0;
}
@@ -145,7 +161,12 @@ void ldb_schema_attribute_remove(struct ldb_context *ldb, const char *name)
int i;
a = ldb_schema_attribute_by_name(ldb, name);
- if (a == NULL) {
+ if (a == NULL || a->name == NULL) {
+ return;
+ }
+
+ /* FIXED attributes are never removed */
+ if (a->flags & LDB_ATTR_FLAG_FIXED) {
return;
}
diff --git a/source4/lib/ldb/common/ldb_dn.c b/source4/lib/ldb/common/ldb_dn.c
index 08911344b7..c0d36cfbf3 100644
--- a/source4/lib/ldb/common/ldb_dn.c
+++ b/source4/lib/ldb/common/ldb_dn.c
@@ -71,7 +71,7 @@ struct ldb_dn {
};
/* strdn may be NULL */
-struct ldb_dn *ldb_dn_new(void *mem_ctx, struct ldb_context *ldb, const char *strdn)
+struct ldb_dn *ldb_dn_from_ldb_val(void *mem_ctx, struct ldb_context *ldb, const struct ldb_val *strdn)
{
struct ldb_dn *dn;
@@ -82,27 +82,27 @@ struct ldb_dn *ldb_dn_new(void *mem_ctx, struct ldb_context *ldb, const char *st
dn->ldb = ldb;
- if (strdn) {
- if (strdn[0] == '@') {
+ if (strdn->data && strdn->length) {
+ if (strdn->data[0] == '@') {
dn->special = true;
}
- if (strncasecmp(strdn, "<GUID=", 6) == 0) {
+ if (strdn->length >= 6 && strncasecmp((const char *)strdn->data, "<GUID=", 6) == 0) {
/* this is special DN returned when the
* exploded_dn control is used */
dn->special = true;
/* FIXME: add a GUID string to ldb_dn structure */
- } else if (strncasecmp(strdn, "<SID=", 8) == 0) {
+ } else if (strdn->length >= 8 && strncasecmp((const char *)strdn->data, "<SID=", 8) == 0) {
/* this is special DN returned when the
* exploded_dn control is used */
dn->special = true;
/* FIXME: add a SID string to ldb_dn structure */
- } else if (strncasecmp(strdn, "<WKGUID=", 8) == 0) {
+ } else if (strdn->length >= 8 && strncasecmp((const char *)strdn->data, "<WKGUID=", 8) == 0) {
/* this is special DN returned when the
* exploded_dn control is used */
dn->special = true;
/* FIXME: add a WKGUID string to ldb_dn structure */
}
- dn->linearized = talloc_strdup(dn, strdn);
+ dn->linearized = talloc_strndup(dn, (const char *)strdn->data, strdn->length);
} else {
dn->linearized = talloc_strdup(dn, "");
}
@@ -115,6 +115,15 @@ failed:
return NULL;
}
+/* strdn may be NULL */
+struct ldb_dn *ldb_dn_new(void *mem_ctx, struct ldb_context *ldb, const char *strdn)
+{
+ struct ldb_val blob;
+ blob.data = strdn;
+ blob.length = strdn ? strlen(strdn) : 0;
+ return ldb_dn_from_ldb_val(mem_ctx, ldb, &blob);
+}
+
struct ldb_dn *ldb_dn_new_fmt(void *mem_ctx, struct ldb_context *ldb, const char *new_fmt, ...)
{
struct ldb_dn *dn;
diff --git a/source4/lib/ldb/common/ldb_msg.c b/source4/lib/ldb/common/ldb_msg.c
index c1ea9db56b..2f5fe1d18c 100644
--- a/source4/lib/ldb/common/ldb_msg.c
+++ b/source4/lib/ldb/common/ldb_msg.c
@@ -389,10 +389,10 @@ int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
if (!v || !v->data) {
return default_value;
}
- if (strcasecmp((const char *)v->data, "FALSE") == 0) {
+ if (v->length == 5 && strncasecmp((const char *)v->data, "FALSE", 5) == 0) {
return 0;
}
- if (strcasecmp((const char *)v->data, "TRUE") == 0) {
+ if (v->length == 4 && strncasecmp((const char *)v->data, "TRUE", 4) == 0) {
return 1;
}
return default_value;
@@ -421,7 +421,7 @@ struct ldb_dn *ldb_msg_find_attr_as_dn(struct ldb_context *ldb,
if (!v || !v->data) {
return NULL;
}
- res_dn = ldb_dn_new(mem_ctx, ldb, (const char *)v->data);
+ res_dn = ldb_dn_from_ldb_val(mem_ctx, ldb, v);
if ( ! ldb_dn_validate(res_dn)) {
talloc_free(res_dn);
return NULL;
diff --git a/source4/lib/ldb/common/ldb_utf8.c b/source4/lib/ldb/common/ldb_utf8.c
index b7b4a60122..69ee2b6964 100644
--- a/source4/lib/ldb/common/ldb_utf8.c
+++ b/source4/lib/ldb/common/ldb_utf8.c
@@ -40,8 +40,8 @@
function to handle utf8 caseless comparisons
*/
void ldb_set_utf8_fns(struct ldb_context *ldb,
- void *context,
- char *(*casefold)(void *, void *, const char *))
+ void *context,
+ char *(*casefold)(void *, void *, const char *, size_t))
{
if (context)
ldb->utf8_fns.context = context;
@@ -53,10 +53,10 @@ void ldb_set_utf8_fns(struct ldb_context *ldb,
a simple case folding function
NOTE: does not handle UTF8
*/
-char *ldb_casefold_default(void *context, void *mem_ctx, const char *s)
+char *ldb_casefold_default(void *context, void *mem_ctx, const char *s, size_t n)
{
int i;
- char *ret = talloc_strdup(mem_ctx, s);
+ char *ret = talloc_strndup(mem_ctx, s, n);
if (!s) {
errno = ENOMEM;
return NULL;
@@ -72,9 +72,9 @@ void ldb_set_utf8_default(struct ldb_context *ldb)
ldb_set_utf8_fns(ldb, NULL, ldb_casefold_default);
}
-char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s)
+char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s, size_t n)
{
- return ldb->utf8_fns.casefold(ldb->utf8_fns.context, mem_ctx, s);
+ return ldb->utf8_fns.casefold(ldb->utf8_fns.context, mem_ctx, s, n);
}
/*
generated by cgit (git 2.34.1) at 2024-07-29 23:42:29 +0000