We don't need memset to set a uint32_t to zero. We can also use a better
idiom to allocate the aspa->providers.

Index: aspa.c
===================================================================
RCS file: /cvs/src/usr.sbin/rpki-client/aspa.c,v
diff -u -p -r1.39 aspa.c
--- aspa.c	25 Aug 2025 04:13:56 -0000	1.39
+++ aspa.c	27 Aug 2025 07:37:40 -0000
@@ -56,7 +56,6 @@ aspa_parse_providers(const char *fn, str
     const STACK_OF(ASN1_INTEGER) *providers)
 {
 	const ASN1_INTEGER	*pa;
-	uint32_t		 provider;
 	size_t			 providersz, i;
 
 	if ((providersz = sk_ASN1_INTEGER_num(providers)) == 0) {
@@ -70,14 +69,14 @@ aspa_parse_providers(const char *fn, str
 		return 0;
 	}
 
-	aspa->providers = calloc(providersz, sizeof(provider));
+	aspa->providers = calloc(providersz, sizeof(aspa->providers[0]));
 	if (aspa->providers == NULL)
 		err(1, NULL);
 
 	for (i = 0; i < providersz; i++) {
-		pa = sk_ASN1_INTEGER_value(providers, i);
+		uint32_t provider = 0;
 
-		memset(&provider, 0, sizeof(provider));
+		pa = sk_ASN1_INTEGER_value(providers, i);
 
 		if (!as_id_parse(pa, &provider)) {
 			warnx("%s: ASPA: malformed ProviderAS", fn);