libsepol: use size_t for indexes in strs helpers

Use size_t, as the strs struct uses it for its size member.

Signed-off-by: Christian Göttsche <[email protected]>

libsepol/src/kernel_to_common.c

@@ -212,11 +212,11 @@ char *strs_remove_last(struct strs *strs)
 	return strs->list[strs->num];
 }
 
-int strs_add_at_index(struct strs *strs, char *s, unsigned index)
+int strs_add_at_index(struct strs *strs, char *s, size_t index)
 {
 	if (index >= strs->size) {
 		char **new;
-		unsigned i = strs->size;
+		size_t i = strs->size;
 		while (index >= strs->size) {
 			strs->size *= 2;
 		}
@@ -237,7 +237,7 @@ int strs_add_at_index(struct strs *strs, char *s, unsigned index)
 	return 0;
 }
 
-char *strs_read_at_index(struct strs *strs, unsigned index)
+char *strs_read_at_index(struct strs *strs, size_t index)
 {
 	if (index >= strs->num) {
 		return NULL;

libsepol/src/kernel_to_common.h

@@ -99,8 +99,8 @@ int strs_add(struct strs *strs, char *s);
 __attribute__ ((format(printf, 2, 4)))
 int strs_create_and_add(struct strs *strs, const char *fmt, int num, ...);
 char *strs_remove_last(struct strs *strs);
-int strs_add_at_index(struct strs *strs, char *s, unsigned index);
-char *strs_read_at_index(struct strs *strs, unsigned index);
+int strs_add_at_index(struct strs *strs, char *s, size_t index);
+char *strs_read_at_index(struct strs *strs, size_t index);
 void strs_sort(struct strs *strs);
 unsigned strs_num_items(struct strs *strs);
 size_t strs_len_items(struct strs *strs);