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-rw-r--r--ldb/common/ldb_msg.c899
1 files changed, 899 insertions, 0 deletions
diff --git a/ldb/common/ldb_msg.c b/ldb/common/ldb_msg.c
new file mode 100644
index 000000000..2f5fe1d18
--- /dev/null
+++ b/ldb/common/ldb_msg.c
@@ -0,0 +1,899 @@
+/*
+ ldb database library
+
+ Copyright (C) Andrew Tridgell 2004
+
+ ** NOTE! The following LGPL license applies to the ldb
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * Name: ldb
+ *
+ * Component: ldb message component utility functions
+ *
+ * Description: functions for manipulating ldb_message structures
+ *
+ * Author: Andrew Tridgell
+ */
+
+#include "ldb_includes.h"
+
+/*
+ create a new ldb_message in a given memory context (NULL for top level)
+*/
+struct ldb_message *ldb_msg_new(void *mem_ctx)
+{
+ return talloc_zero(mem_ctx, struct ldb_message);
+}
+
+/*
+ find an element in a message by attribute name
+*/
+struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
+ const char *attr_name)
+{
+ unsigned int i;
+ for (i=0;i<msg->num_elements;i++) {
+ if (ldb_attr_cmp(msg->elements[i].name, attr_name) == 0) {
+ return &msg->elements[i];
+ }
+ }
+ return NULL;
+}
+
+/*
+ see if two ldb_val structures contain exactly the same data
+ return 1 for a match, 0 for a mis-match
+*/
+int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2)
+{
+ if (v1->length != v2->length) return 0;
+
+ if (v1->length == 0) return 1;
+
+ if (memcmp(v1->data, v2->data, v1->length) == 0) {
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ find a value in an element
+ assumes case sensitive comparison
+*/
+struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
+ struct ldb_val *val)
+{
+ unsigned int i;
+ for (i=0;i<el->num_values;i++) {
+ if (ldb_val_equal_exact(val, &el->values[i])) {
+ return &el->values[i];
+ }
+ }
+ return NULL;
+}
+
+/*
+ duplicate a ldb_val structure
+*/
+struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v)
+{
+ struct ldb_val v2;
+ v2.length = v->length;
+ if (v->data == NULL) {
+ v2.data = NULL;
+ return v2;
+ }
+
+ /* the +1 is to cope with buggy C library routines like strndup
+ that look one byte beyond */
+ v2.data = talloc_array(mem_ctx, uint8_t, v->length+1);
+ if (!v2.data) {
+ v2.length = 0;
+ return v2;
+ }
+
+ memcpy(v2.data, v->data, v->length);
+ ((char *)v2.data)[v->length] = 0;
+ return v2;
+}
+
+/*
+ add an empty element to a message
+*/
+int ldb_msg_add_empty( struct ldb_message *msg,
+ const char *attr_name,
+ int flags,
+ struct ldb_message_element **return_el)
+{
+ struct ldb_message_element *els;
+
+ els = talloc_realloc(msg, msg->elements,
+ struct ldb_message_element, msg->num_elements+1);
+ if (!els) {
+ errno = ENOMEM;
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ els[msg->num_elements].values = NULL;
+ els[msg->num_elements].num_values = 0;
+ els[msg->num_elements].flags = flags;
+ els[msg->num_elements].name = talloc_strdup(els, attr_name);
+ if (!els[msg->num_elements].name) {
+ errno = ENOMEM;
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ msg->elements = els;
+ msg->num_elements++;
+
+ if (return_el) {
+ *return_el = &els[msg->num_elements-1];
+ }
+
+ return LDB_SUCCESS;
+}
+
+/*
+ add an empty element to a message
+*/
+int ldb_msg_add(struct ldb_message *msg,
+ const struct ldb_message_element *el,
+ int flags)
+{
+ /* We have to copy this, just in case *el is a pointer into
+ * what ldb_msg_add_empty() is about to realloc() */
+ struct ldb_message_element el_copy = *el;
+ if (ldb_msg_add_empty(msg, el->name, flags, NULL) != 0) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ msg->elements[msg->num_elements-1] = el_copy;
+ msg->elements[msg->num_elements-1].flags = flags;
+
+ return LDB_SUCCESS;
+}
+
+/*
+ add a value to a message
+*/
+int ldb_msg_add_value(struct ldb_message *msg,
+ const char *attr_name,
+ const struct ldb_val *val,
+ struct ldb_message_element **return_el)
+{
+ struct ldb_message_element *el;
+ struct ldb_val *vals;
+ int ret;
+
+ el = ldb_msg_find_element(msg, attr_name);
+ if (!el) {
+ ret = ldb_msg_add_empty(msg, attr_name, 0, &el);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+
+ vals = talloc_realloc(msg, el->values, struct ldb_val, el->num_values+1);
+ if (!vals) {
+ errno = ENOMEM;
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ el->values = vals;
+ el->values[el->num_values] = *val;
+ el->num_values++;
+
+ if (return_el) {
+ *return_el = el;
+ }
+
+ return LDB_SUCCESS;
+}
+
+
+/*
+ add a value to a message, stealing it into the 'right' place
+*/
+int ldb_msg_add_steal_value(struct ldb_message *msg,
+ const char *attr_name,
+ struct ldb_val *val)
+{
+ int ret;
+ struct ldb_message_element *el;
+
+ ret = ldb_msg_add_value(msg, attr_name, val, &el);
+ if (ret == LDB_SUCCESS) {
+ talloc_steal(el->values, val->data);
+ }
+ return ret;
+}
+
+
+/*
+ add a string element to a message
+*/
+int ldb_msg_add_string(struct ldb_message *msg,
+ const char *attr_name, const char *str)
+{
+ struct ldb_val val;
+
+ val.data = discard_const_p(uint8_t, str);
+ val.length = strlen(str);
+
+ if (val.length == 0) {
+ /* allow empty strings as non-existant attributes */
+ return LDB_SUCCESS;
+ }
+
+ return ldb_msg_add_value(msg, attr_name, &val, NULL);
+}
+
+/*
+ add a string element to a message, stealing it into the 'right' place
+*/
+int ldb_msg_add_steal_string(struct ldb_message *msg,
+ const char *attr_name, char *str)
+{
+ struct ldb_val val;
+
+ val.data = (uint8_t *)str;
+ val.length = strlen(str);
+
+ return ldb_msg_add_steal_value(msg, attr_name, &val);
+}
+
+/*
+ add a printf formatted element to a message
+*/
+int ldb_msg_add_fmt(struct ldb_message *msg,
+ const char *attr_name, const char *fmt, ...)
+{
+ struct ldb_val val;
+ va_list ap;
+ char *str;
+
+ va_start(ap, fmt);
+ str = talloc_vasprintf(msg, fmt, ap);
+ va_end(ap);
+
+ if (str == NULL) return LDB_ERR_OPERATIONS_ERROR;
+
+ val.data = (uint8_t *)str;
+ val.length = strlen(str);
+
+ return ldb_msg_add_steal_value(msg, attr_name, &val);
+}
+
+/*
+ compare two ldb_message_element structures
+ assumes case senistive comparison
+*/
+int ldb_msg_element_compare(struct ldb_message_element *el1,
+ struct ldb_message_element *el2)
+{
+ unsigned int i;
+
+ if (el1->num_values != el2->num_values) {
+ return el1->num_values - el2->num_values;
+ }
+
+ for (i=0;i<el1->num_values;i++) {
+ if (!ldb_msg_find_val(el2, &el1->values[i])) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ compare two ldb_message_element structures
+ comparing by element name
+*/
+int ldb_msg_element_compare_name(struct ldb_message_element *el1,
+ struct ldb_message_element *el2)
+{
+ return ldb_attr_cmp(el1->name, el2->name);
+}
+
+/*
+ convenience functions to return common types from a message
+ these return the first value if the attribute is multi-valued
+*/
+const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg,
+ const char *attr_name)
+{
+ struct ldb_message_element *el = ldb_msg_find_element(msg, attr_name);
+ if (!el || el->num_values == 0) {
+ return NULL;
+ }
+ return &el->values[0];
+}
+
+int ldb_msg_find_attr_as_int(const struct ldb_message *msg,
+ const char *attr_name,
+ int default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return strtol((const char *)v->data, NULL, 0);
+}
+
+unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg,
+ const char *attr_name,
+ unsigned int default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return strtoul((const char *)v->data, NULL, 0);
+}
+
+int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg,
+ const char *attr_name,
+ int64_t default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return strtoll((const char *)v->data, NULL, 0);
+}
+
+uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg,
+ const char *attr_name,
+ uint64_t default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return strtoull((const char *)v->data, NULL, 0);
+}
+
+double ldb_msg_find_attr_as_double(const struct ldb_message *msg,
+ const char *attr_name,
+ double default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return strtod((const char *)v->data, NULL);
+}
+
+int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
+ const char *attr_name,
+ int default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ if (v->length == 5 && strncasecmp((const char *)v->data, "FALSE", 5) == 0) {
+ return 0;
+ }
+ if (v->length == 4 && strncasecmp((const char *)v->data, "TRUE", 4) == 0) {
+ return 1;
+ }
+ return default_value;
+}
+
+const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg,
+ const char *attr_name,
+ const char *default_value)
+{
+ const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return default_value;
+ }
+ return (const char *)v->data;
+}
+
+struct ldb_dn *ldb_msg_find_attr_as_dn(struct ldb_context *ldb,
+ void *mem_ctx,
+ const struct ldb_message *msg,
+ const char *attr_name)
+{
+ struct ldb_dn *res_dn;
+ const struct ldb_val *v;
+
+ v = ldb_msg_find_ldb_val(msg, attr_name);
+ if (!v || !v->data) {
+ return NULL;
+ }
+ res_dn = ldb_dn_from_ldb_val(mem_ctx, ldb, v);
+ if ( ! ldb_dn_validate(res_dn)) {
+ talloc_free(res_dn);
+ return NULL;
+ }
+ return res_dn;
+}
+
+/*
+ sort the elements of a message by name
+*/
+void ldb_msg_sort_elements(struct ldb_message *msg)
+{
+ qsort(msg->elements, msg->num_elements, sizeof(struct ldb_message_element),
+ (comparison_fn_t)ldb_msg_element_compare_name);
+}
+
+/*
+ shallow copy a message - copying only the elements array so that the caller
+ can safely add new elements without changing the message
+*/
+struct ldb_message *ldb_msg_copy_shallow(TALLOC_CTX *mem_ctx,
+ const struct ldb_message *msg)
+{
+ struct ldb_message *msg2;
+ int i;
+
+ msg2 = talloc(mem_ctx, struct ldb_message);
+ if (msg2 == NULL) return NULL;
+
+ *msg2 = *msg;
+
+ msg2->elements = talloc_array(msg2, struct ldb_message_element,
+ msg2->num_elements);
+ if (msg2->elements == NULL) goto failed;
+
+ for (i=0;i<msg2->num_elements;i++) {
+ msg2->elements[i] = msg->elements[i];
+ }
+
+ return msg2;
+
+failed:
+ talloc_free(msg2);
+ return NULL;
+}
+
+
+/*
+ copy a message, allocating new memory for all parts
+*/
+struct ldb_message *ldb_msg_copy(TALLOC_CTX *mem_ctx,
+ const struct ldb_message *msg)
+{
+ struct ldb_message *msg2;
+ int i, j;
+
+ msg2 = ldb_msg_copy_shallow(mem_ctx, msg);
+ if (msg2 == NULL) return NULL;
+
+ msg2->dn = ldb_dn_copy(msg2, msg2->dn);
+ if (msg2->dn == NULL) goto failed;
+
+ for (i=0;i<msg2->num_elements;i++) {
+ struct ldb_message_element *el = &msg2->elements[i];
+ struct ldb_val *values = el->values;
+ el->name = talloc_strdup(msg2->elements, el->name);
+ if (el->name == NULL) goto failed;
+ el->values = talloc_array(msg2->elements, struct ldb_val, el->num_values);
+ for (j=0;j<el->num_values;j++) {
+ el->values[j] = ldb_val_dup(el->values, &values[j]);
+ if (el->values[j].data == NULL && values[j].length != 0) {
+ goto failed;
+ }
+ }
+ }
+
+ return msg2;
+
+failed:
+ talloc_free(msg2);
+ return NULL;
+}
+
+
+/*
+ canonicalise a message, merging elements of the same name
+*/
+struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
+ const struct ldb_message *msg)
+{
+ int i;
+ struct ldb_message *msg2;
+
+ msg2 = ldb_msg_copy(ldb, msg);
+ if (msg2 == NULL) return NULL;
+
+ ldb_msg_sort_elements(msg2);
+
+ for (i=1;i<msg2->num_elements;i++) {
+ struct ldb_message_element *el1 = &msg2->elements[i-1];
+ struct ldb_message_element *el2 = &msg2->elements[i];
+ if (ldb_msg_element_compare_name(el1, el2) == 0) {
+ el1->values = talloc_realloc(msg2->elements, el1->values, struct ldb_val,
+ el1->num_values + el2->num_values);
+ if (el1->values == NULL) {
+ return NULL;
+ }
+ memcpy(el1->values + el1->num_values,
+ el2->values,
+ sizeof(struct ldb_val) * el2->num_values);
+ el1->num_values += el2->num_values;
+ talloc_free(discard_const_p(char, el2->name));
+ if (i+1<msg2->num_elements) {
+ memmove(el2, el2+1, sizeof(struct ldb_message_element) *
+ (msg2->num_elements - (i+1)));
+ }
+ msg2->num_elements--;
+ i--;
+ }
+ }
+
+ return msg2;
+}
+
+
+/*
+ return a ldb_message representing the differences between msg1 and msg2. If you
+ then use this in a ldb_modify() call it can be used to save edits to a message
+*/
+struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
+ struct ldb_message *msg1,
+ struct ldb_message *msg2)
+{
+ struct ldb_message *mod;
+ struct ldb_message_element *el;
+ unsigned int i;
+
+ mod = ldb_msg_new(ldb);
+
+ mod->dn = msg1->dn;
+ mod->num_elements = 0;
+ mod->elements = NULL;
+
+ msg2 = ldb_msg_canonicalize(ldb, msg2);
+ if (msg2 == NULL) {
+ return NULL;
+ }
+
+ /* look in msg2 to find elements that need to be added
+ or modified */
+ for (i=0;i<msg2->num_elements;i++) {
+ el = ldb_msg_find_element(msg1, msg2->elements[i].name);
+
+ if (el && ldb_msg_element_compare(el, &msg2->elements[i]) == 0) {
+ continue;
+ }
+
+ if (ldb_msg_add(mod,
+ &msg2->elements[i],
+ el?LDB_FLAG_MOD_REPLACE:LDB_FLAG_MOD_ADD) != 0) {
+ return NULL;
+ }
+ }
+
+ /* look in msg1 to find elements that need to be deleted */
+ for (i=0;i<msg1->num_elements;i++) {
+ el = ldb_msg_find_element(msg2, msg1->elements[i].name);
+ if (!el) {
+ if (ldb_msg_add_empty(mod,
+ msg1->elements[i].name,
+ LDB_FLAG_MOD_DELETE, NULL) != 0) {
+ return NULL;
+ }
+ }
+ }
+
+ return mod;
+}
+
+int ldb_msg_sanity_check(struct ldb_context *ldb,
+ const struct ldb_message *msg)
+{
+ int i, j;
+
+ /* basic check on DN */
+ if (msg->dn == NULL) {
+ /* TODO: return also an error string */
+ ldb_set_errstring(ldb, "ldb message lacks a DN!");
+ return LDB_ERR_INVALID_DN_SYNTAX;
+ }
+
+ /* basic syntax checks */
+ for (i = 0; i < msg->num_elements; i++) {
+ for (j = 0; j < msg->elements[i].num_values; j++) {
+ if (msg->elements[i].values[j].length == 0) {
+ TALLOC_CTX *mem_ctx = talloc_new(ldb);
+ /* an attribute cannot be empty */
+ /* TODO: return also an error string */
+ ldb_asprintf_errstring(ldb, "Element %s has empty attribute in ldb message (%s)!",
+ msg->elements[i].name,
+ ldb_dn_get_linearized(msg->dn));
+ talloc_free(mem_ctx);
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+ }
+ }
+
+ return LDB_SUCCESS;
+}
+
+
+
+
+/*
+ copy an attribute list. This only copies the array, not the elements
+ (ie. the elements are left as the same pointers)
+*/
+const char **ldb_attr_list_copy(TALLOC_CTX *mem_ctx, const char * const *attrs)
+{
+ const char **ret;
+ int i;
+ for (i=0;attrs[i];i++) /* noop */ ;
+ ret = talloc_array(mem_ctx, const char *, i+1);
+ if (ret == NULL) {
+ return NULL;
+ }
+ for (i=0;attrs[i];i++) {
+ ret[i] = attrs[i];
+ }
+ ret[i] = attrs[i];
+ return ret;
+}
+
+
+/*
+ copy an attribute list. This only copies the array, not the elements
+ (ie. the elements are left as the same pointers). The new attribute is added to the list.
+*/
+const char **ldb_attr_list_copy_add(TALLOC_CTX *mem_ctx, const char * const *attrs, const char *new_attr)
+{
+ const char **ret;
+ int i;
+ bool found = false;
+ for (i=0;attrs[i];i++) {
+ if (ldb_attr_cmp(attrs[i], new_attr) == 0) {
+ found = true;
+ }
+ }
+ if (found) {
+ return ldb_attr_list_copy(mem_ctx, attrs);
+ }
+ ret = talloc_array(mem_ctx, const char *, i+2);
+ if (ret == NULL) {
+ return NULL;
+ }
+ for (i=0;attrs[i];i++) {
+ ret[i] = attrs[i];
+ }
+ ret[i] = new_attr;
+ ret[i+1] = NULL;
+ return ret;
+}
+
+
+/*
+ return 1 if an attribute is in a list of attributes, or 0 otherwise
+*/
+int ldb_attr_in_list(const char * const *attrs, const char *attr)
+{
+ int i;
+ for (i=0;attrs && attrs[i];i++) {
+ if (ldb_attr_cmp(attrs[i], attr) == 0) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+/*
+ rename the specified attribute in a search result
+*/
+int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace)
+{
+ struct ldb_message_element *el = ldb_msg_find_element(msg, attr);
+ if (el == NULL) {
+ return LDB_SUCCESS;
+ }
+ el->name = talloc_strdup(msg->elements, replace);
+ if (el->name == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ return LDB_SUCCESS;
+}
+
+
+/*
+ copy the specified attribute in a search result to a new attribute
+*/
+int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace)
+{
+ struct ldb_message_element *el = ldb_msg_find_element(msg, attr);
+ if (el == NULL) {
+ return LDB_SUCCESS;
+ }
+ if (ldb_msg_add(msg, el, 0) != 0) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ return ldb_msg_rename_attr(msg, attr, replace);
+}
+
+/*
+ remove the specified element in a search result
+*/
+void ldb_msg_remove_element(struct ldb_message *msg, struct ldb_message_element *el)
+{
+ int n = (el - msg->elements);
+ if (n != msg->num_elements-1) {
+ memmove(el, el+1, ((msg->num_elements-1) - n)*sizeof(*el));
+ }
+ msg->num_elements--;
+}
+
+
+/*
+ remove the specified attribute in a search result
+*/
+void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr)
+{
+ struct ldb_message_element *el = ldb_msg_find_element(msg, attr);
+ if (el) {
+ ldb_msg_remove_element(msg, el);
+ }
+}
+
+/*
+ return a LDAP formatted GeneralizedTime string
+*/
+char *ldb_timestring(TALLOC_CTX *mem_ctx, time_t t)
+{
+ struct tm *tm = gmtime(&t);
+ char *ts;
+ int r;
+
+ if (!tm) {
+ return NULL;
+ }
+
+ /* we now excatly how long this string will be */
+ ts = talloc_array(mem_ctx, char, 18);
+
+ /* formatted like: 20040408072012.0Z */
+ r = snprintf(ts, 18,
+ "%04u%02u%02u%02u%02u%02u.0Z",
+ tm->tm_year+1900, tm->tm_mon+1,
+ tm->tm_mday, tm->tm_hour, tm->tm_min,
+ tm->tm_sec);
+
+ if (r != 17) {
+ talloc_free(ts);
+ return NULL;
+ }
+
+ return ts;
+}
+
+/*
+ convert a LDAP GeneralizedTime string to a time_t. Return 0 if unable to convert
+*/
+time_t ldb_string_to_time(const char *s)
+{
+ struct tm tm;
+
+ if (s == NULL) return 0;
+
+ memset(&tm, 0, sizeof(tm));
+ if (sscanf(s, "%04u%02u%02u%02u%02u%02u",
+ &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
+ &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) {
+ return 0;
+ }
+ tm.tm_year -= 1900;
+ tm.tm_mon -= 1;
+
+ return timegm(&tm);
+}
+
+/*
+ return a LDAP formatted UTCTime string
+*/
+char *ldb_timestring_utc(TALLOC_CTX *mem_ctx, time_t t)
+{
+ struct tm *tm = gmtime(&t);
+ char *ts;
+ int r;
+
+ if (!tm) {
+ return NULL;
+ }
+
+ /* we now excatly how long this string will be */
+ ts = talloc_array(mem_ctx, char, 14);
+
+ /* formatted like: 20040408072012.0Z => 040408072012Z */
+ r = snprintf(ts, 14,
+ "%02u%02u%02u%02u%02u%02uZ",
+ (tm->tm_year+1900)%100, tm->tm_mon+1,
+ tm->tm_mday, tm->tm_hour, tm->tm_min,
+ tm->tm_sec);
+
+ if (r != 13) {
+ talloc_free(ts);
+ return NULL;
+ }
+
+ return ts;
+}
+
+/*
+ convert a LDAP UTCTime string to a time_t. Return 0 if unable to convert
+*/
+time_t ldb_string_utc_to_time(const char *s)
+{
+ struct tm tm;
+
+ if (s == NULL) return 0;
+
+ memset(&tm, 0, sizeof(tm));
+ if (sscanf(s, "%02u%02u%02u%02u%02u%02u",
+ &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
+ &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) {
+ return 0;
+ }
+ if (tm.tm_year < 50) {
+ tm.tm_year += 100;
+ }
+ tm.tm_mon -= 1;
+
+ return timegm(&tm);
+}
+
+
+/*
+ dump a set of results to a file. Useful from within gdb
+*/
+void ldb_dump_results(struct ldb_context *ldb, struct ldb_result *result, FILE *f)
+{
+ int i;
+
+ for (i = 0; i < result->count; i++) {
+ struct ldb_ldif ldif;
+ fprintf(f, "# record %d\n", i+1);
+ ldif.changetype = LDB_CHANGETYPE_NONE;
+ ldif.msg = result->msgs[i];
+ ldb_ldif_write_file(ldb, f, &ldif);
+ }
+}
+
+int ldb_msg_check_string_attribute(const struct ldb_message *msg, const char *name, const char *value)
+{
+ struct ldb_message_element *el;
+ struct ldb_val val;
+
+ el = ldb_msg_find_element(msg, name);
+ if (el == NULL)
+ return 0;
+
+ val.data = discard_const_p(uint8_t, value);
+ val.length = strlen(value);
+
+ if (ldb_msg_find_val(el, &val))
+ return 1;
+
+ return 0;
+}
generated by cgit (git 2.34.1) at 2024-05-02 19:18:00 +0000