s4/ldb: added --show-binary command line option

This add --show-binary to ldbsearch. When this flag is set, binary
blobs will be shown as-is, instead of base64 encoded. This is useful
for some XML encoded attributes, and will also be used as part of some
NDR print formatting for attributes like repsTo.

6 files changed, 20 insertions, 4 deletions

diff --git a/source4/lib/ldb/common/ldb_ldif.c b/source4/lib/ldb/common/ldb_ldif.c
index 83f08b609b8..b73fee18431 100644
--- a/source4/lib/ldb/common/ldb_ldif.c
+++ b/source4/lib/ldb/common/ldb_ldif.c
@@ -185,11 +185,15 @@ char *ldb_base64_encode(void *mem_ctx, const char *buf, int len)
 /*
   see if a buffer should be base64 encoded
 */
-int ldb_should_b64_encode(const struct ldb_val *val)
+int ldb_should_b64_encode(struct ldb_context *ldb, const struct ldb_val *val)
 {
 	unsigned int i;
 	uint8_t *p = val->data;
 
+	if (ldb->flags & LDB_FLG_SHOW_BINARY) {
+		return 0;
+	}
+
 	if (val->length == 0) {
 		return 0;
 	}
@@ -333,7 +337,7 @@ int ldb_ldif_write(struct ldb_context *ldb,
 			if (ret != LDB_SUCCESS) {
 				v = msg->elements[i].values[j];
 			}
-			if (ret != LDB_SUCCESS || ldb_should_b64_encode(&v)) {
+			if (ret != LDB_SUCCESS || ldb_should_b64_encode(ldb, &v)) {
 				ret = fprintf_fn(private_data, "%s:: ", 
 						 msg->elements[i].name);
 				CHECK_RET;
diff --git a/source4/lib/ldb/include/ldb.h b/source4/lib/ldb/include/ldb.h
index f38dc8f227b..b75d63b8482 100644
--- a/source4/lib/ldb/include/ldb.h
+++ b/source4/lib/ldb/include/ldb.h
@@ -240,6 +240,12 @@ struct ldb_utf8_fns {
 */
 #define LDB_FLG_NOMMAP 8
 
+/**
+   Flag to tell ldif handlers not to force encoding of binary
+   structures in base64   
+*/
+#define LDB_FLG_SHOW_BINARY 16
+
 /*
    structures for ldb_parse_tree handling code
 */
diff --git a/source4/lib/ldb/include/ldb_module.h b/source4/lib/ldb/include/ldb_module.h
index 1d6329ca2fd..199c0bb40de 100644
--- a/source4/lib/ldb/include/ldb_module.h
+++ b/source4/lib/ldb/include/ldb_module.h
@@ -102,7 +102,7 @@ int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct l
 int check_critical_controls(struct ldb_control **controls);
 
 /* The following definitions come from lib/ldb/common/ldb_ldif.c  */
-int ldb_should_b64_encode(const struct ldb_val *val);
+int ldb_should_b64_encode(struct ldb_context *ldb, const struct ldb_val *val);
 
 /* The following definitions come from lib/ldb/common/ldb_match.c  */
 int ldb_match_msg(struct ldb_context *ldb,
diff --git a/source4/lib/ldb/ldb_tdb/ldb_index.c b/source4/lib/ldb/ldb_tdb/ldb_index.c
index 7db22de0978..85fbfa0458f 100644
--- a/source4/lib/ldb/ldb_tdb/ldb_index.c
+++ b/source4/lib/ldb/ldb_tdb/ldb_index.c
@@ -455,7 +455,7 @@ static struct ldb_dn *ltdb_index_key(struct ldb_context *ldb,
 		talloc_free(attr_folded);
 		return NULL;
 	}
-	if (ldb_should_b64_encode(&v)) {
+	if (ldb_should_b64_encode(ldb, &v)) {
 		char *vstr = ldb_base64_encode(ldb, (char *)v.data, v.length);
 		if (!vstr) return NULL;
 		ret = ldb_dn_new_fmt(ldb, ldb, "%s:%s::%s", LTDB_INDEX, attr_folded, vstr);
diff --git a/source4/lib/ldb/tools/cmdline.c b/source4/lib/ldb/tools/cmdline.c
index b6c1de3a4f2..8541106060c 100644
--- a/source4/lib/ldb/tools/cmdline.c
+++ b/source4/lib/ldb/tools/cmdline.c
@@ -56,6 +56,7 @@ static struct poptOption popt_options[] = {
 	{ "output", 'O', POPT_ARG_STRING, &options.output, 0, "Output File", "Output" },
 	{ NULL,    'o', POPT_ARG_STRING, NULL, 'o', "ldb_connect option", "OPTION" },
 	{ "controls", 0, POPT_ARG_STRING, NULL, 'c', "controls", NULL },
+	{ "show-binary", 0, POPT_ARG_NONE, &options.show_binary, 0, "display binary LDIF", NULL },
 #if (_SAMBA_BUILD_ >= 4)
 	POPT_COMMON_SAMBA
 	POPT_COMMON_CREDENTIALS
@@ -215,6 +216,10 @@ struct ldb_cmdline *ldb_cmdline_process(struct ldb_context *ldb,
 		flags |= LDB_FLG_NOSYNC;
 	}
 
+	if (options.show_binary) {
+		flags |= LDB_FLG_SHOW_BINARY;
+	}
+
 #if (_SAMBA_BUILD_ >= 4)
 	/* Must be after we have processed command line options */
 	gensec_init(cmdline_lp_ctx); 
diff --git a/source4/lib/ldb/tools/cmdline.h b/source4/lib/ldb/tools/cmdline.h
index 4decf4588f8..9f728fba0bd 100644
--- a/source4/lib/ldb/tools/cmdline.h
+++ b/source4/lib/ldb/tools/cmdline.h
@@ -44,6 +44,7 @@ struct ldb_cmdline {
 	const char *input;
 	const char *output;
 	char **controls;
+	int show_binary;
 };
 
 struct ldb_cmdline *ldb_cmdline_process(struct ldb_context *ldb, int argc, const char **argv,