vty: command.c: Fix: multi-choice args are no longer passed incomplete to vty func
For instance, take command "multi0 (one|two|three)":
If user executes "multi0 tw", VTY func will receive argv[0]="two"
instead of argv[0]="tw".
Fixes: OS#4045
Change-Id: I91b6621ac3d87fda5412a9b415e7bfb4736c8a9a
diff --git a/src/vty/command.c b/src/vty/command.c
index 17d28fe..3c91bfd 100644
--- a/src/vty/command.c
+++ b/src/vty/command.c
@@ -2217,7 +2217,7 @@
cmd_execute_command_real(vector vline, struct vty *vty,
struct cmd_element **cmd)
{
- unsigned int i;
+ unsigned int i, j;
unsigned int index;
vector cmd_vector;
struct cmd_element *cmd_element;
@@ -2228,6 +2228,10 @@
enum match_type match = 0;
int varflag;
char *command;
+ int rc;
+ /* Used for temporary storage of cmd_deopt() allocated arguments during
+ argv[] generation */
+ void *cmd_deopt_ctx = NULL;
/* Make copy of command elements. */
cmd_vector = vector_copy(cmd_node_vector(cmdvec, vty->node));
@@ -2293,9 +2297,13 @@
varflag = 0;
argc = 0;
+ cmd_deopt_ctx = talloc_named_const(tall_vty_cmd_ctx, 0, __func__);
+
for (i = 0; i < vector_active(vline); i++) {
- if (argc == CMD_ARGC_MAX)
- return CMD_ERR_EXEED_ARGC_MAX;
+ if (argc == CMD_ARGC_MAX) {
+ rc = CMD_ERR_EXEED_ARGC_MAX;
+ goto rc_free_deopt_ctx;
+ }
if (varflag) {
argv[argc++] = vector_slot(vline, i);
continue;
@@ -2313,7 +2321,32 @@
|| CMD_OPTION(desc->cmd))
argv[argc++] = vector_slot(vline, i);
} else {
- argv[argc++] = vector_slot(vline, i);
+ /* multi choice argument. look up which choice
+ the user meant (can only be one after
+ filtering and checking for ambigous). For instance,
+ if user typed "th" for "(two|three)" arg, we
+ want to pass "three" in argv[]. */
+ for (j = 0; j < vector_active(descvec); j++) {
+ struct desc *desc = vector_slot(descvec, j);
+ const char *tmp_cmd;
+ if (!desc)
+ continue;
+ if (cmd_match(desc->cmd, vector_slot(vline, i), ANY_MATCH, true) == NO_MATCH)
+ continue;
+ if (CMD_OPTION(desc->cmd)) {
+ /* we need to first remove the [] chars, then check to see what's inside (var or token) */
+ tmp_cmd = cmd_deopt(cmd_deopt_ctx, desc->cmd);
+ } else {
+ tmp_cmd = desc->cmd;
+ }
+
+ if(CMD_VARIABLE(tmp_cmd)) {
+ argv[argc++] = vector_slot(vline, i);
+ } else {
+ argv[argc++] = tmp_cmd;
+ }
+ break;
+ }
}
}
@@ -2322,10 +2355,14 @@
*cmd = matched_element;
if (matched_element->daemon)
- return CMD_SUCCESS_DAEMON;
+ rc = CMD_SUCCESS_DAEMON;
+ else /* Execute matched command. */
+ rc = (*matched_element->func) (matched_element, vty, argc, argv);
- /* Execute matched command. */
- return (*matched_element->func) (matched_element, vty, argc, argv);
+rc_free_deopt_ctx:
+ /* Now after we called the command func, we can free temporary strings */
+ talloc_free(cmd_deopt_ctx);
+ return rc;
}
int