cache: use pkgconf_reallocarray stub

libpkgconf/bsdstubs.c

@@ -137,3 +137,23 @@ pkgconf_strndup(const char *src, size_t len)
 {
 	return strndup(src, len);
 }
+
+#ifndef HAVE_REALLOCARRAY
+void *
+reallocarray(void *ptr, size_t m, size_t n)
+{
+	if (n && m > -1 / n)
+	{
+		errno = ENOMEM;
+		return 0;
+	}
+
+	return realloc(ptr, m * n);
+}
+#endif
+
+void *
+pkgconf_reallocarray(void *ptr, size_t m, size_t n)
+{
+	return reallocarray(ptr, m, n);
+}

libpkgconf/bsdstubs.h

@@ -25,6 +25,7 @@ extern "C" {
 PKGCONF_API extern size_t pkgconf_strlcpy(char *dst, const char *src, size_t siz);
 PKGCONF_API extern size_t pkgconf_strlcat(char *dst, const char *src, size_t siz);
 PKGCONF_API extern char *pkgconf_strndup(const char *src, size_t len);
+PKGCONF_API extern void *pkgconf_reallocarray(void *ptr, size_t m, size_t n);
 
 #ifdef __cplusplus
 }

libpkgconf/cache.c

@@ -128,7 +128,7 @@ pkgconf_cache_add(pkgconf_client_t *client, pkgconf_pkg_t *pkg)
 	pkg->flags |= PKGCONF_PKG_PROPF_CACHED;
 
 	++client->cache_count;
-	client->cache_table = reallocarray(client->cache_table,
+	client->cache_table = pkgconf_reallocarray(client->cache_table,
 		client->cache_count, sizeof (void *));
 	client->cache_table[client->cache_count - 1] = pkg;
 
@@ -181,7 +181,7 @@ pkgconf_cache_remove(pkgconf_client_t *client, pkgconf_pkg_t *pkg)
 	}
 
 	client->cache_count--;
-	client->cache_table = reallocarray(client->cache_table,
+	client->cache_table = pkgconf_reallocarray(client->cache_table,
 		client->cache_count, sizeof(void *));
 }
 
@@ -214,7 +214,7 @@ pkgconf_cache_free(pkgconf_client_t *client)
 	pkgconf_pkg_t **cache_table;
 	size_t i, count;
 
-	cache_table = reallocarray(NULL, client->cache_count, sizeof (void *));
+	cache_table = pkgconf_reallocarray(NULL, client->cache_count, sizeof (void *));
 	memcpy(cache_table, client->cache_table,
 		client->cache_count * sizeof (void *));