Locking issues.
diff --git a/apps/openssl.c b/apps/openssl.c
index 4ec9606..6c69a29 100644
--- a/apps/openssl.c
+++ b/apps/openssl.c
@@ -55,6 +55,60 @@
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
#include <stdio.h>
#include <string.h>
@@ -92,6 +146,71 @@
BIO *bio_err=NULL;
#endif
+
+static void lock_dbg_cb(int mode, int type, const char *file, int line)
+ {
+ static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
+ const char *errstr = NULL;
+ int rw;
+
+ rw = mode & (CRYPTO_READ|CRYPTO_WRITE);
+ if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE)))
+ {
+ errstr = "invalid mode";
+ goto err;
+ }
+
+ if (type < 0 || type > CRYPTO_NUM_LOCKS)
+ {
+ errstr = "type out of bounds";
+ goto err;
+ }
+
+ if (mode & CRYPTO_LOCK)
+ {
+ if (modes[type])
+ {
+ errstr = "already locked";
+ /* must not happen in a single-threaded program
+ * (would deadlock) */
+ goto err;
+ }
+
+ modes[type] = rw;
+ }
+ else if (mode & CRYPTO_UNLOCK)
+ {
+ if (!modes[type])
+ {
+ errstr = "not locked";
+ goto err;
+ }
+
+ if (modes[type] != rw)
+ {
+ errstr = (rw == CRYPTO_READ) ?
+ "CRYPTO_r_unlock on write lock" :
+ "CRYPTO_w_unlock on read lock";
+ }
+
+ modes[type] = 0;
+ }
+ else
+ {
+ errstr = "invalid mode";
+ goto err;
+ }
+
+ err:
+ if (errstr)
+ {
+ /* we cannot use bio_err here */
+ fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
+ errstr, mode, type, file, line);
+ }
+ }
+
+
int main(int Argc, char *Argv[])
{
ARGS arg;
@@ -112,6 +231,13 @@
CRYPTO_malloc_debug_init();
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
+#if 0
+ if (getenv("OPENSSL_DEBUG_LOCKING") != NULL)
+#endif
+ {
+ CRYPTO_set_locking_callback(lock_dbg_cb);
+ }
+
apps_startup();
if (bio_err == NULL)
