diff options
Diffstat (limited to 'source4/lib/ldb/common/ldb_dn.c')
| -rw-r--r-- | source4/lib/ldb/common/ldb_dn.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/source4/lib/ldb/common/ldb_dn.c b/source4/lib/ldb/common/ldb_dn.c index 07594551ea..d5442e410e 100644 --- a/source4/lib/ldb/common/ldb_dn.c +++ b/source4/lib/ldb/common/ldb_dn.c @@ -2045,3 +2045,57 @@ int ldb_dn_update_components(struct ldb_dn *dn, const struct ldb_dn *ref_dn) return LDB_SUCCESS; } + +/* + minimise a DN. The caller must pass in a validated DN. + + If the DN has an extended component then only the first extended + component is kept, the DN string is stripped. + + The existing dn is modified + */ +bool ldb_dn_minimise(struct ldb_dn *dn) +{ + int i; + + if (!ldb_dn_validate(dn)) { + return false; + } + if (dn->ext_comp_num == 0) { + return true; + } + + /* free components */ + for (i = 0; i < dn->comp_num; i++) { + LDB_FREE(dn->components[i].name); + LDB_FREE(dn->components[i].value.data); + LDB_FREE(dn->components[i].cf_name); + LDB_FREE(dn->components[i].cf_value.data); + } + dn->comp_num = 0; + dn->valid_case = false; + + LDB_FREE(dn->casefold); + LDB_FREE(dn->linearized); + + /* note that we don't free dn->components as this there are + * several places in ldb_dn.c that rely on it being non-NULL + * for an exploded DN + */ + + for (i = 1; i < dn->ext_comp_num; i++) { + LDB_FREE(dn->ext_components[i].name); + LDB_FREE(dn->ext_components[i].value.data); + } + dn->ext_comp_num = 1; + + dn->ext_components = talloc_realloc(dn, dn->ext_components, struct ldb_dn_ext_component, 1); + if (dn->ext_components == NULL) { + ldb_dn_mark_invalid(dn); + return false; + } + + LDB_FREE(dn->ext_linearized); + + return true; +} |