[1/2] libsepol/cil: Add function to get number of items in a stack

Commit Message

James Carter Sept. 7, 2021, 7:58 p.m. UTC

Add the function, cil_stack_number_of_items(), to return the number
of items in the stack.

Signed-off-by: James Carter <[e-mail]>
---
 libsepol/cil/src/cil_stack.c | 5 +++++
 libsepol/cil/src/cil_stack.h | 1 +
 2 files changed, 6 insertions(+)

Patch

diff --git a/libsepol/cil/src/cil_stack.c b/libsepol/cil/src/cil_stack.c
index bbfb961a..70a77bc1 100644
--- a/libsepol/cil/src/cil_stack.c
+++ b/libsepol/cil/src/cil_stack.c
@@ -67,6 +67,11 @@  int cil_stack_is_empty(struct cil_stack *stack)
 	return (stack->pos == -1);
 }
 
+int cil_stack_number_of_items(struct cil_stack *stack)
+{
+	return stack->pos + 1;
+}
+
 void cil_stack_push(struct cil_stack *stack, enum cil_flavor flavor, void *data)
 {
 	stack->pos++;
diff --git a/libsepol/cil/src/cil_stack.h b/libsepol/cil/src/cil_stack.h
index b78535ac..0e3eff66 100644
--- a/libsepol/cil/src/cil_stack.h
+++ b/libsepol/cil/src/cil_stack.h
@@ -52,6 +52,7 @@  void cil_stack_destroy(struct cil_stack **stack);
 
 void cil_stack_empty(struct cil_stack *stack);
 int cil_stack_is_empty(struct cil_stack *stack);
+int cil_stack_number_of_items(struct cil_stack *stack);
 
 void cil_stack_push(struct cil_stack *stack, enum cil_flavor flavor, void *data);
 struct cil_stack_item *cil_stack_pop(struct cil_stack *stack);