Convert TS_STATUS_INFO* functions to use const getters

Reviewed-by: NViktor Dukhovni <viktor@openssl.org>
Reviewed-by: NStephen Henson <steve@openssl.org>

crypto/ts/ts_rsp_utils.c

@@ -348,17 +348,18 @@ int TS_STATUS_INFO_set_status(TS_STATUS_INFO *a, int i)
     return ASN1_INTEGER_set(a->status, i);
 }
 
-ASN1_INTEGER *TS_STATUS_INFO_get0_status(TS_STATUS_INFO *a)
+const ASN1_INTEGER *TS_STATUS_INFO_get0_status(const TS_STATUS_INFO *a)
 {
     return a->status;
 }
 
-STACK_OF(ASN1_UTF8STRING) *TS_STATUS_INFO_get0_text(TS_STATUS_INFO *a)
+const STACK_OF(ASN1_UTF8STRING) *
+TS_STATUS_INFO_get0_text(const TS_STATUS_INFO *a)
 {
     return a->text;
 }
 
-ASN1_BIT_STRING *TS_STATUS_INFO_get0_failure_info(TS_STATUS_INFO *a)
+const ASN1_BIT_STRING *TS_STATUS_INFO_get0_failure_info(const TS_STATUS_INFO *a)
 {
     return a->failure_info;
 }

include/openssl/ts.h

@@ -160,11 +160,13 @@ int TS_REQ_set_version(TS_REQ *a, long version);
 long TS_REQ_get_version(const TS_REQ *a);
 
 int TS_STATUS_INFO_set_status(TS_STATUS_INFO *a, int i);
-ASN1_INTEGER *TS_STATUS_INFO_get0_status(TS_STATUS_INFO *a);
+const ASN1_INTEGER *TS_STATUS_INFO_get0_status(const TS_STATUS_INFO *a);
 
-STACK_OF(ASN1_UTF8STRING) *TS_STATUS_INFO_get0_text(TS_STATUS_INFO *a);
+const STACK_OF(ASN1_UTF8STRING) *
+TS_STATUS_INFO_get0_text(const TS_STATUS_INFO *a);
 
-ASN1_BIT_STRING *TS_STATUS_INFO_get0_failure_info(TS_STATUS_INFO *a);
+const ASN1_BIT_STRING *
+TS_STATUS_INFO_get0_failure_info(const TS_STATUS_INFO *a);
 
 int TS_REQ_set_msg_imprint(TS_REQ *a, TS_MSG_IMPRINT *msg_imprint);
 TS_MSG_IMPRINT *TS_REQ_get_msg_imprint(TS_REQ *a);