Add regress for ASN1_tag2bit() and ASN1_tag2str()

2 files changed, 135 insertions, 1 deletions

diff --git a/regress/lib/libcrypto/asn1/Makefile b/regress/lib/libcrypto/asn1/Makefile
index 90eca92f8ec..7540aeb4475 100644
--- a/regress/lib/libcrypto/asn1/Makefile
+++ b/regress/lib/libcrypto/asn1/Makefile
@@ -1,6 +1,7 @@
-#	$OpenBSD: Makefile,v 1.10 2021/12/11 22:58:48 schwarze Exp $
+#	$OpenBSD: Makefile,v 1.11 2021/12/14 17:07:57 jsing Exp $
 
 TESTS = \
+	asn1api \
 	asn1basic \
 	asn1complex \
 	asn1evp \
diff --git a/regress/lib/libcrypto/asn1/asn1api.c b/regress/lib/libcrypto/asn1/asn1api.c
new file mode 100644
index 00000000000..05b7353d4dc
--- /dev/null
+++ b/regress/lib/libcrypto/asn1/asn1api.c
@@ -0,0 +1,133 @@
+/* $OpenBSD: asn1api.c,v 1.1 2021/12/14 17:07:57 jsing Exp $ */
+/*
+ * Copyright (c) 2021 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <openssl/asn1.h>
+#include <openssl/err.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+
+const long asn1_tag2bits[] = {
+	[0] = 0,
+	[1] = 0,
+	[2] = 0,
+	[3] = B_ASN1_BIT_STRING,
+	[4] = B_ASN1_OCTET_STRING,
+	[5] = 0,
+	[6] = 0,
+	[7] = B_ASN1_UNKNOWN,
+	[8] = B_ASN1_UNKNOWN,
+	[9] = B_ASN1_UNKNOWN,
+	[10] = B_ASN1_UNKNOWN,
+	[11] = B_ASN1_UNKNOWN,
+	[12] = B_ASN1_UTF8STRING,
+	[13] = B_ASN1_UNKNOWN,
+	[14] = B_ASN1_UNKNOWN,
+	[15] = B_ASN1_UNKNOWN,
+	[16] = B_ASN1_SEQUENCE,
+	[17] = 0,
+	[18] = B_ASN1_NUMERICSTRING,
+	[19] = B_ASN1_PRINTABLESTRING,
+	[20] = B_ASN1_T61STRING,
+	[21] = B_ASN1_VIDEOTEXSTRING,
+	[22] = B_ASN1_IA5STRING,
+	[23] = B_ASN1_UTCTIME,
+	[24] = B_ASN1_GENERALIZEDTIME,
+	[25] = B_ASN1_GRAPHICSTRING,
+	[26] = B_ASN1_ISO64STRING,
+	[27] = B_ASN1_GENERALSTRING,
+	[28] = B_ASN1_UNIVERSALSTRING,
+	[29] = B_ASN1_UNKNOWN,
+	[30] = B_ASN1_BMPSTRING,
+};
+
+static int
+asn1_tag2bit(void)
+{
+	int failed = 1;
+	long bit;
+	int i;
+
+	for (i = -3; i <= V_ASN1_NEG + 30; i++) {
+		bit = ASN1_tag2bit(i);
+		if (i >= 0 && i <= 30) {
+			if (bit != asn1_tag2bits[i]) {
+				fprintf(stderr, "FAIL: ASN1_tag2bit(%d) = 0x%lx,"
+				    " want 0x%lx\n", i, bit, asn1_tag2bits[i]);
+				goto failed;
+			}
+		} else {
+			if (bit != 0) {
+				fprintf(stderr, "FAIL: ASN1_tag2bit(%d) = 0x%lx,"
+				    " want 0x0\n", i, bit);
+				goto failed;
+			}
+		}
+	}
+
+	failed = 0;
+
+ failed:
+	return failed;
+}
+
+static int
+asn1_tag2str(void)
+{
+	int failed = 1;
+	const char *s;
+	int i;
+
+	for (i = -3; i <= V_ASN1_NEG + 30; i++) {
+		if ((s = ASN1_tag2str(i)) == NULL) {
+			fprintf(stderr, "FAIL: ASN1_tag2str(%d) returned "
+			    "NULL\n", i);
+			goto failed;
+		}
+		if ((i >= 0 && i <= 30) || i == V_ASN1_NEG_INTEGER ||
+		    i == V_ASN1_NEG_ENUMERATED) {
+			if (strcmp(s, "(unknown)") == 0) {
+				fprintf(stderr, "FAIL: ASN1_tag2str(%d) = '%s',"
+				    " want tag name\n", i, s);
+				goto failed;
+			}
+		} else {
+			if (strcmp(s, "(unknown)") != 0) {
+				fprintf(stderr, "FAIL: ASN1_tag2str(%d) = '%s',"
+				    " want '(unknown')\n", i, s);
+				goto failed;
+			}
+		}
+	}
+
+	failed = 0;
+
+ failed:
+	return failed;
+}
+
+int
+main(int argc, char **argv)
+{
+	int failed = 0;
+
+	failed |= asn1_tag2bit();
+	failed |= asn1_tag2str();
+
+	return (failed);
+}