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r7276: - moved static tdb function ltdb_dn_fold() into common/ so that it can be

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called from multiple backends.  (ldb_sqlite3 needs it too.)  Added parameter
  for a callback function that determines whether an attribute needs case
  folding.
- begin to prepare for sqlite3 in build process
- work-in-progress updates, on ldb_sqlite3
This commit is contained in:
Derrell Lipman
2005-06-04 17:13:43 +00:00
committed by Gerald (Jerry) Carter
parent 0dda66f0e8
commit a80bced0b9
13 changed files with 466 additions and 645 deletions
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77
source/lib/ldb/common/ldb_utf8.c
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@@ -88,3 +88,80 @@ int ldb_attr_cmp(const char *dn1, const char *dn2)
{
return ldb_caseless_cmp(dn1, dn2);
}
/*
casefold a dn. We need to uppercase the attribute names, and the
attribute values of case insensitive attributes. We also need to remove
extraneous spaces between elements
*/
char *ldb_dn_fold(struct ldb_module *module, const char *dn, int (*case_fold_attr_fn)(struct ldb_module * module, char * attr))
{
const char *dn_orig = dn;
struct ldb_context *ldb = module->ldb;
TALLOC_CTX *tmp_ctx = talloc_new(ldb);
char *ret;
size_t len;
ret = talloc_strdup(tmp_ctx, "");
if (ret == NULL) goto failed;
while ((len = strcspn(dn, ",")) > 0) {
char *p = strchr(dn, '=');
char *attr, *value;
int case_fold_required;
if (p == NULL || (p-dn) > len) goto failed;
attr = talloc_strndup(tmp_ctx, dn, p-dn);
if (attr == NULL) goto failed;
/* trim spaces from the attribute name */
while (' ' == *attr) attr++;
while (' ' == attr[strlen(attr)-1]) {
attr[strlen(attr)-1] = 0;
}
if (*attr == 0) goto failed;
value = talloc_strndup(tmp_ctx, p+1, len-(p+1-dn));
if (value == NULL) goto failed;
/* trim spaces from the value */
while (' ' == *value) value++;
while (' ' == value[strlen(value)-1]) {
value[strlen(value)-1] = 0;
}
if (*value == 0) goto failed;
case_fold_required = (* case_fold_attr_fn)(module, attr);
attr = ldb_casefold(ldb, attr);
if (attr == NULL) goto failed;
talloc_steal(tmp_ctx, attr);
if (case_fold_required) {
value = ldb_casefold(ldb, value);
if (value == NULL) goto failed;
talloc_steal(tmp_ctx, value);
}
if (dn[len] == ',') {
ret = talloc_asprintf_append(ret, "%s=%s,", attr, value);
} else {
ret = talloc_asprintf_append(ret, "%s=%s", attr, value);
}
if (ret == NULL) goto failed;
dn += len;
if (*dn == ',') dn++;
}
talloc_steal(ldb, ret);
talloc_free(tmp_ctx);
return ret;
failed:
talloc_free(tmp_ctx);
return ldb_casefold(ldb, dn_orig);
}