diff options
Diffstat (limited to 'apps/app_stack.c')
-rw-r--r-- | apps/app_stack.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/apps/app_stack.c b/apps/app_stack.c index e4031c12c..3b69862ee 100644 --- a/apps/app_stack.c +++ b/apps/app_stack.c @@ -228,9 +228,9 @@ static int gosub_exec(struct ast_channel *chan, void *data) { struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL); AST_LIST_HEAD(, gosub_stack_frame) *oldlist; - struct gosub_stack_frame *newframe; + struct gosub_stack_frame *newframe, *lastframe; char argname[15], *tmp = ast_strdupa(data), *label, *endparen; - int i; + int i, max_argc = 0; AST_DECLARE_APP_ARGS(args2, AST_APP_ARG(argval)[100]; ); @@ -258,6 +258,12 @@ static int gosub_exec(struct ast_channel *chan, void *data) stack_store->data = oldlist; AST_LIST_HEAD_INIT(oldlist); ast_channel_datastore_add(chan, stack_store); + } else { + oldlist = stack_store->data; + } + + if ((lastframe = AST_LIST_FIRST(oldlist))) { + max_argc = lastframe->arguments; } /* Separate the arguments from the label */ @@ -273,8 +279,13 @@ static int gosub_exec(struct ast_channel *chan, void *data) } else args2.argc = 0; + /* Mask out previous arguments in this invocation */ + if (args2.argc > max_argc) { + max_argc = args2.argc; + } + /* Create the return address, but don't save it until we know that the Gosub destination exists */ - newframe = gosub_allocate_frame(chan->context, chan->exten, chan->priority + 1, args2.argc); + newframe = gosub_allocate_frame(chan->context, chan->exten, chan->priority + 1, max_argc); if (!newframe) { return -1; @@ -297,10 +308,10 @@ static int gosub_exec(struct ast_channel *chan, void *data) } /* Now that we know for certain that we're going to a new location, set our arguments */ - for (i = 0; i < args2.argc; i++) { + for (i = 0; i < max_argc; i++) { snprintf(argname, sizeof(argname), "ARG%d", i + 1); - frame_set_var(chan, newframe, argname, args2.argval[i]); - ast_debug(1, "Setting '%s' to '%s'\n", argname, args2.argval[i]); + frame_set_var(chan, newframe, argname, i < args2.argc ? args2.argval[i] : ""); + ast_debug(1, "Setting '%s' to '%s'\n", argname, i < args2.argc ? args2.argval[i] : ""); } /* And finally, save our return address */ |