Backport fix for 11520--for some reason I didn't do this back in February when I patched for trunk.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@121992 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c

@@ -789,6 +789,19 @@ static int valid_priv_reply(struct ast_flags *opts, int res)
 	return 0;
 }
 
+static void set_dial_features(struct ast_flags *opts, struct ast_dial_features *features)
+{
+	struct ast_flags perm_opts = {.flags = 0};
+
+	ast_copy_flags(&perm_opts, opts,
+		OPT_CALLER_TRANSFER | OPT_CALLER_PARK | OPT_CALLER_MONITOR | OPT_CALLER_HANGUP |
+		OPT_CALLEE_TRANSFER | OPT_CALLEE_PARK | OPT_CALLEE_MONITOR | OPT_CALLEE_HANGUP);
+
+	memset(features->options, 0, sizeof(features->options));
+
+	ast_app_options2str(dial_exec_options, &perm_opts, features->options, sizeof(features->options));
+}
+
 static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags *peerflags, int *continue_exec)
 {
 	int res = -1;
@@ -831,6 +844,9 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 	struct ast_flags opts = { 0, };
 	char *opt_args[OPT_ARG_ARRAY_SIZE];
 	struct ast_datastore *datastore = NULL;
+	struct ast_datastore *ds_caller_features = NULL;
+	struct ast_datastore *ds_callee_features = NULL;
+	struct ast_dial_features *caller_features;
 	int fulldial = 0, num_dialed = 0;
 
 	if (ast_strlen_zero(data)) {
@@ -1086,6 +1102,28 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 	}
 	    
 	ast_copy_flags(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING);
+
+	/* Create datastore for channel dial features for caller */
+	if (!(ds_caller_features = ast_channel_datastore_alloc(&dial_features_info, NULL))) {
+		ast_log(LOG_WARNING, "Unable to create channel datastore for dial features. Aborting!\n");
+		goto out;
+	}
+
+	if (!(caller_features = ast_malloc(sizeof(*caller_features)))) {
+		ast_log(LOG_WARNING, "Unable to allocate memory for feature flags. Aborting!\n");
+		goto out;
+	}
+
+	caller_features->is_caller = 1;
+	set_dial_features(&opts, caller_features);
+
+	ds_caller_features->inheritance = DATASTORE_INHERIT_FOREVER;
+	ds_caller_features->data = caller_features;
+
+	ast_channel_lock(chan);
+	ast_channel_datastore_add(chan, ds_caller_features);
+	ast_channel_unlock(chan);
+
 	/* loop through the list of dial destinations */
 	rest = args.peers;
 	while ((cur = strsep(&rest, "&")) ) {
@@ -1096,6 +1134,7 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 		char *tech = strsep(&number, "/");
 		/* find if we already dialed this interface */
 		struct ast_dialed_interface *di;
+		struct ast_dial_features *callee_features;
 		AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
 		num_dialed++;
 		if (!number) {
@@ -1245,6 +1284,30 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 		else
 			ast_copy_string(tmp->chan->exten, chan->exten, sizeof(tmp->chan->exten));
 
+		/* Save callee features */
+		if (!(ds_callee_features = ast_channel_datastore_alloc(&dial_features_info, NULL))) {
+			ast_log(LOG_WARNING, "Unable to create channel datastore for dial features. Aborting!\n");
+			ast_free(tmp);
+			goto out;
+		}
+
+		if (!(callee_features = ast_malloc(sizeof(*callee_features)))) {
+			ast_log(LOG_WARNING, "Unable to allocate memory for feature flags. Aborting!\n");
+			ast_free(tmp);
+			goto out;
+		}
+
+		callee_features->is_caller = 0;
+		set_dial_features(&opts, callee_features);
+
+		ds_callee_features->inheritance = DATASTORE_INHERIT_FOREVER;
+		ds_callee_features->data = callee_features;
+
+		ast_channel_lock(tmp->chan);
+		ast_channel_datastore_add(tmp->chan, ds_callee_features);
+		ast_channel_unlock(tmp->chan);
+
+
 		/* Place the call, but don't wait on the answer */
 		res = ast_call(tmp->chan, numsubst, 0);
 

include/asterisk/app.h

@@ -411,6 +411,14 @@ struct ast_app_option {
  */
 int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr);
 
+/*! \brief Given a list of options array, return an option string based on passed flags
+	\param options The array of possible options declared with AST_APP_OPTIONS
+	\param flags The flags of the options that you wish to populate the buffer with
+	\param buf The buffer to fill with the string of options
+	\param len The maximum length of buf
+*/
+void ast_app_options2str(const struct ast_app_option *options, struct ast_flags *flags, char *buf, size_t len);
+
 /*! \brief Present a dialtone and collect a certain length extension.
     \return Returns 1 on valid extension entered, -1 on hangup, or 0 on invalid extension.
 \note Note that if 'collect' holds digits already, new digits will be appended, so be sure it's initialized properly */

include/asterisk/global_datastores.h

@@ -26,11 +26,22 @@
 
 #include "asterisk/channel.h"
 
+#define MAX_DIAL_FEATURE_OPTIONS 30
+
 extern const struct ast_datastore_info dialed_interface_info;
 
+extern const struct ast_datastore_info dial_features_info;
+
 struct ast_dialed_interface {
 	AST_LIST_ENTRY(ast_dialed_interface) list;
 	char interface[1];
 };
 
+struct ast_dial_features {
+	struct ast_flags features_caller;
+	struct ast_flags features_callee;
+	char options[MAX_DIAL_FEATURE_OPTIONS];
+	int is_caller;
+};
+
 #endif

main/app.c

@@ -1387,6 +1387,18 @@ char *ast_read_textfile(const char *filename)
 	return output;
 }
 
+void ast_app_options2str(const struct ast_app_option *options, struct ast_flags *flags, char *buf, size_t len)
+{
+	unsigned int i, found = 0;
+
+	for (i = 32; i < 128 && found < len;i++) {
+		if (ast_test_flag(flags, options[i].flag)) {
+			buf[found++] = i;
+		}
+	}
+	buf[found] = '\0';
+}
+
 int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
 {
 	char *s;

main/global_datastores.c

@@ -35,8 +35,9 @@ static void dialed_interface_destroy(void *data)
 	struct ast_dialed_interface *di = NULL;
 	AST_LIST_HEAD(, ast_dialed_interface) *dialed_interface_list = data;
 	
-	if (!dialed_interface_list)
+	if (!dialed_interface_list) {
 		return;
+	}
 
 	AST_LIST_LOCK(dialed_interface_list);
 	while ((di = AST_LIST_REMOVE_HEAD(dialed_interface_list, list)))
@@ -53,11 +54,13 @@ static void *dialed_interface_duplicate(void *data)
 	AST_LIST_HEAD(, ast_dialed_interface) *old_list;
 	AST_LIST_HEAD(, ast_dialed_interface) *new_list = NULL;
 
-	if(!(old_list = data))
+	if(!(old_list = data)) {
 		return NULL;
+	}
 
-	if(!(new_list = ast_calloc(1, sizeof(*new_list))))
+	if(!(new_list = ast_calloc(1, sizeof(*new_list)))) {
 		return NULL;
+	}
 
 	AST_LIST_HEAD_INIT(new_list);
 	AST_LIST_LOCK(old_list);
@@ -76,8 +79,35 @@ static void *dialed_interface_duplicate(void *data)
 	return new_list;
 }
 
+
+static void *dial_features_duplicate(void *data)
+{
+	struct ast_dial_features *df = data, *df_copy;
+
+	if (!(df_copy = ast_calloc(1, sizeof(*df)))) {
+		return NULL;
+	}
+
+	memcpy(df_copy, df, sizeof(*df));
+
+	return df_copy;
+}
+
+static void dial_features_destroy(void *data) {
+	struct ast_dial_features *df = data;
+	if (df) {
+		ast_free(df);
+	}
+}
+
 const struct ast_datastore_info dialed_interface_info = {
 	.type = "dialed-interface",
 	.destroy = dialed_interface_destroy,
 	.duplicate = dialed_interface_duplicate,
 };
+
+const struct ast_datastore_info dial_features_info = {
+	.type = "dial-features",
+	.destroy = dial_features_destroy,
+	.duplicate = dial_features_duplicate,
+};

res/res_features.c

@@ -62,6 +62,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/adsi.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/monitor.h"
+#include "asterisk/global_datastores.h"
 
 #define DEFAULT_PARK_TIME 45000
 #define DEFAULT_TRANSFER_DIGIT_TIMEOUT 3000
@@ -1711,7 +1712,21 @@ static void *do_parking_thread(void *ignore)
 					}
 					if (con) {
 						char returnexten[AST_MAX_EXTENSION];
+						struct ast_datastore *features_datastore;
+						struct ast_dial_features *dialfeatures = NULL;
+
+						ast_channel_lock(chan);
+
+						if ((features_datastore = ast_channel_datastore_find(chan, &dial_features_info, NULL)))
+							dialfeatures = features_datastore->data;
+
+						ast_channel_unlock(chan);
+
+						if (dialfeatures)
+							snprintf(returnexten, sizeof(returnexten), "%s|30|%s", peername, dialfeatures->options);
+						else /* Existing default */
 							snprintf(returnexten, sizeof(returnexten), "%s|30|t", peername);
+
 						ast_add_extension2(con, 1, peername, 1, NULL, NULL, "Dial", strdup(returnexten), ast_free, registrar);
 					}
 					set_c_e_p(chan, parking_con_dial, peername, 1);