--- /dev/null
+#undef NDEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <UserIdentifier.h>
+
+static unsigned char buf[4096];
+static int buf_offset;
+
+static int
+_buf_writer(const void *buffer, size_t size, void *app_key) {
+ unsigned char *b, *bend;
+ (void)app_key;
+ assert(buf_offset + size < sizeof(buf));
+ memcpy(buf + buf_offset, buffer, size);
+ b = buf + buf_offset;
+ bend = b + size;
+ printf("=> [");
+ for(; b < bend; b++)
+ printf(" %02X", *b);
+ printf("]:%zd\n", size);
+ buf_offset += size;
+ return 0;
+}
+
+static int
+save_object(void *bs, asn_TYPE_descriptor_t *td) {
+ asn_enc_rval_t rval; /* Return value */
+ int i;
+
+ rval = der_encode(td, bs, _buf_writer, 0);
+ if (rval.encoded == -1) {
+ fprintf(stderr,
+ "Cannot encode %s: %s\n",
+ rval.failed_type->name, strerror(errno));
+ assert(rval.encoded != -1);
+ return -1; /* JIC */
+ }
+
+ buf[buf_offset++] = 123; /* Finalize with garbage */
+
+ asn_fprint(stderr, td, bs);
+ xer_fprint(stderr, td, bs);
+
+ printf("OUT: [");
+ for(i = 0; i < buf_offset; i++)
+ printf(" %02x", buf[i]);
+ printf("]\n");
+
+ return 0;
+}
+
+static int
+load_object(void *bs, asn_TYPE_descriptor_t *td) {
+ asn_dec_rval_t rval;
+
+ fprintf(stderr, "\nLOADING OBJECT OF SIZE %d\n", buf_offset);
+
+ rval = ber_decode(0, td, (void **)&bs, buf, buf_offset);
+ assert(rval.code == RC_OK);
+
+ asn_fprint(stderr, td, bs);
+ xer_fprint(stderr, td, bs);
+
+ return (rval.code == RC_OK)?0:-1;
+}
+
+int
+main() {
+ asn_TYPE_descriptor_t *td = &asn_DEF_UserIdentifier;
+ UserIdentifier_t user;
+ UserIdentifier_t user_new;
+ int ret;
+
+ memset(&user, 0, sizeof user);
+ memset(&user_new, 0, sizeof user_new);
+
+ user.present = UserIdentifier_PR_phoneNumber;
+ OCTET_STRING_fromBuf(
+ &user.choice.phoneNumber,
+ "0123456789", -1);
+
+ /* Save->Load must succeed */
+ save_object(&user, td);
+ ret = load_object(&user_new, td);
+
+ assert(user_new.present == UserIdentifier_PR_phoneNumber);
+
+ assert(ret == 0);
+
+ printf("OK\n");
+
+ ASN_STRUCT_RESET(asn_DEF_UserIdentifier, &user);
+ ASN_STRUCT_RESET(asn_DEF_UserIdentifier, &user_new);
+ return ret;
+}