Add test for X9.42 parsing

certs/include.am

@@ -59,7 +59,8 @@ EXTRA_DIST += \
 	     certs/csr.signed.der \
 	     certs/csr.ext.der \
 	     certs/entity-no-ca-bool-cert.pem \
-	     certs/entity-no-ca-bool-key.pem
+	     certs/entity-no-ca-bool-key.pem \
+	     certs/x942dh2048.pem
 
 EXTRA_DIST += \
 	     certs/ca-key.der \

certs/x942dh2048.pem

@@ -0,0 +1,14 @@
+-----BEGIN X9.42 DH PARAMETERS-----
+MIICKQKCAQEArRB+HpEjqdDWYPqnlVnFH6INZOVoO5/RtUsVl7YdCnXm+hQd+VpW
+26+aPEB7od8V6z1oijCcGA4d5rhaEnSgpm0/gVKtasISkDfJ7e/aTfjZHo/vVbc5
+S3rVt9C2wSIHyfmNEe002/bGugssi7wnvmoA4KC5xJcIs7+KMXCRiDaBKGEwvImF
+2xYC5xRBXZMwJ4Jzx94x79xzEPcSH9WgdBWYfZrcCkhtzfk6zEQyg4cxXXXhmMZB
+pIDNhqG55YfovmDmnMkosrnFIXLkEwQumyPxCw4W55djybU9z0uoCinj+3PBa451
+uX7zY+L/ox9xz53lOE5xuBwKxN/+DBDmTwKCAQEArEAy708tmuOd8wtcj/2sUGze
+vnuJmYyvdIZqCM/k/+OmgkpOELmm8N2SHwGnDEr6q3OddwDCn1LFfbF8YgqGUr5e
+kAGo1mrXwXZpEBmZAkr00CcnWsE0i7inYtBSG8mK4kcVBCLqHtQJk51U2nRgzbX2
+xrJQcXy+8YDrNBGOmNEZUppF1vg0Vm4wJeMWozDvu3eobwwasVsFGuPUKMj4rLcK
+gTcVC47rEOGD7dGZY93Z4mPkdwWJ72qiHn9fL/OBtTnM40CdE81Wavu0jWwBkYHh
+vP6UswJp7f5y/ptqpL17Wg8ccc//TBnEGOH27AF5gbwIfypwZbOEuJDTGR8r+gId
+AIAcDTTFjZP+mXF3EB+AU1pHOM68vziambNjces=
+-----END X9.42 DH PARAMETERS-----

tests/api.c

@@ -38907,8 +38907,13 @@ static void test_wolfSSL_PEM_read_DHparams(void)
     derOutSz = wolfSSL_i2d_DHparams(dh, &derOutBuf);
     AssertIntEQ(derOutSz, derExpectedSz);
     AssertIntEQ(XMEMCMP(derOut, derExpected, derOutSz), 0);
-    DH_free(dh);
 
+    /* Test parsing with X9.42 header */
+    fp = XFOPEN("./certs/x942dh2048.pem", "rb");
+    AssertNotNull(dh = PEM_read_DHparams(fp, &dh, NULL, NULL));
+    XFCLOSE(fp);
+
+    DH_free(dh);
     printf(resultFmt, passed);
 #endif
 }