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authorStephen Gallagher <sgallagh@redhat.com>2010-07-23 13:20:40 -0400
committerStephen Gallagher <sgallagh@redhat.com>2010-08-03 13:54:38 -0400
commit0286d59c82657abe96ccaa3eebea7240ac30ca81 (patch)
tree2a8cac480013be55cfb42c6d47b4828059b78532 /src/db/sysdb.c
parent34e93359de515da5e75bb34f9f7569f1715f0aa0 (diff)
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Add sysdb_attrs_to_list() utility function
Diffstat (limited to 'src/db/sysdb.c')
-rw-r--r--src/db/sysdb.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/db/sysdb.c b/src/db/sysdb.c
index f784e735c..00cff3724 100644
--- a/src/db/sysdb.c
+++ b/src/db/sysdb.c
@@ -1617,3 +1617,78 @@ int sysdb_attrs_replace_name(struct sysdb_attrs *attrs, const char *oldname,
return EOK;
}
+
+/* Search for all incidences of attr_name in a list of
+ * sysdb_attrs and add their value to a list
+ *
+ * TODO: Currently only works for single-valued
+ * attributes. Multi-valued attributes will return
+ * only the first entry
+ */
+errno_t sysdb_attrs_to_list(TALLOC_CTX *memctx,
+ struct sysdb_attrs **attrs,
+ int attr_count,
+ const char *attr_name,
+ char ***_list)
+{
+ int attr_idx;
+ int i;
+ char **list;
+ char **tmp_list;
+ int list_idx;
+
+ *_list = NULL;
+
+ /* Assume that every attrs entry contains the attr_name
+ * This may waste a little memory if some entries don't
+ * have the attribute, but it will save us the trouble
+ * of continuously resizing the array.
+ */
+ list = talloc_array(memctx, char *, attr_count+1);
+ if (!list) {
+ return ENOMEM;
+ }
+
+ list_idx = 0;
+ /* Loop through all entries in attrs */
+ for (attr_idx = 0; attr_idx < attr_count; attr_idx++) {
+ /* Examine each attribute within the entry */
+ for (i = 0; i < attrs[attr_idx]->num; i++) {
+ if (strcasecmp(attrs[attr_idx]->a->name, attr_name) == 0) {
+ /* Attribute name matches the requested name
+ * Copy it to the output list
+ */
+ list[list_idx] = talloc_strdup(
+ list,
+ (const char *)attrs[attr_idx]->a->values[0].data);
+ if (!list[list_idx]) {
+ talloc_free(list);
+ return ENOMEM;
+ }
+ list_idx++;
+
+ /* We only support single-valued attributes
+ * Break here and go on to the next entry
+ */
+ break;
+ }
+ }
+ }
+
+ list[list_idx] = NULL;
+
+ /* if list_idx < attr_count, do a realloc to
+ * reclaim unused memory
+ */
+ if (list_idx < attr_count) {
+ tmp_list = talloc_realloc(memctx, list, char *, list_idx+1);
+ if (!tmp_list) {
+ talloc_zfree(list);
+ return ENOMEM;
+ }
+ list = tmp_list;
+ }
+
+ *_list = list;
+ return EOK;
+}