1 files changed, 235 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/krb5/error_string.c b/third_party/heimdal/lib/krb5/error_string.c
new file mode 100644
index 00000000000..0e42f51bc21
--- /dev/null
+++ b/third_party/heimdal/lib/krb5/error_string.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2001, 2003, 2005 - 2020 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS 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 INSTITUTE OR 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.
+ */
+
+#include "krb5_locl.h"
+
+#undef __attribute__
+#define __attribute__(x)
+
+/**
+ * Clears the error message from the Kerberos 5 context.
+ *
+ * @param context The Kerberos 5 context to clear
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_clear_error_message(krb5_context context)
+{
+    heim_clear_error_message(context->hcontext);
+}
+
+/**
+ * Set the context full error string for a specific error code.
+ * The error that is stored should be internationalized.
+ *
+ * The if context is NULL, no error string is stored.
+ *
+ * @param context Kerberos 5 context
+ * @param ret The error code
+ * @param fmt Error string for the error code
+ * @param ... printf(3) style parameters.
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_set_error_message(krb5_context context, krb5_error_code ret,
+		       const char *fmt, ...)
+    __attribute__ ((__format__ (__printf__, 3, 4)))
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    krb5_vset_error_message (context, ret, fmt, ap);
+    va_end(ap);
+}
+
+/**
+ * Set the context full error string for a specific error code.
+ *
+ * The if context is NULL, no error string is stored.
+ *
+ * @param context Kerberos 5 context
+ * @param ret The error code
+ * @param fmt Error string for the error code
+ * @param args printf(3) style parameters.
+ *
+ * @ingroup krb5_error
+ */
+
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_vset_error_message(krb5_context context, krb5_error_code ret,
+                        const char *fmt, va_list args)
+    __attribute__ ((__format__ (__printf__, 3, 0)))
+{
+    if (context) {
+        const char *msg;
+
+        heim_vset_error_message(context->hcontext, ret, fmt, args);
+        msg = heim_get_error_message(context->hcontext, ret);
+        if (msg) {
+            _krb5_debug(context, 100, "error message: %s: %d", msg, ret);
+            heim_free_error_message(context->hcontext, msg);
+        }
+    }
+}
+
+/**
+ * Prepend the context full error string for a specific error code.
+ * The error that is stored should be internationalized.
+ *
+ * The if context is NULL, no error string is stored.
+ *
+ * @param context Kerberos 5 context
+ * @param ret The error code
+ * @param fmt Error string for the error code
+ * @param ... printf(3) style parameters.
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_prepend_error_message(krb5_context context, krb5_error_code ret,
+			   const char *fmt, ...)
+    __attribute__ ((__format__ (__printf__, 3, 4)))
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    krb5_vprepend_error_message(context, ret, fmt, ap);
+    va_end(ap);
+}
+
+/**
+ * Prepend the contexts's full error string for a specific error code.
+ *
+ * The if context is NULL, no error string is stored.
+ *
+ * @param context Kerberos 5 context
+ * @param ret The error code
+ * @param fmt Error string for the error code
+ * @param args printf(3) style parameters.
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_vprepend_error_message(krb5_context context, krb5_error_code ret,
+			    const char *fmt, va_list args)
+    __attribute__ ((__format__ (__printf__, 3, 0)))
+{
+    if (context)
+        heim_vprepend_error_message(context->hcontext, ret, fmt, args);
+}
+
+/**
+ * Return the error message for `code' in context. On memory
+ * allocation error the function returns NULL.
+ *
+ * @param context Kerberos 5 context
+ * @param code Error code related to the error
+ *
+ * @return an error string, needs to be freed with
+ * krb5_free_error_message(). The functions return NULL on error.
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION const char * KRB5_LIB_CALL
+krb5_get_error_message(krb5_context context, krb5_error_code code)
+{
+    const char *cstr = NULL;
+
+    if (code == 0)
+	return strdup("Success");
+
+    /*
+     * The MIT version of this function ignores the krb5_context
+     * and several widely deployed applications call krb5_get_error_message()
+     * with a NULL context in order to translate an error code as a
+     * replacement for error_message().  Another reason a NULL context
+     * might be provided is if the krb5_init_context() call itself
+     * failed.
+     */
+    if (context == NULL && krb5_init_context(&context) == 0) {
+        cstr = heim_get_error_message(context->hcontext, code);
+        krb5_free_context(context);
+    } else if (context) {
+        cstr = heim_get_error_message(context->hcontext, code);
+    } else {
+        cstr = heim_get_error_message(NULL, code);
+    }
+    return cstr;
+}
+
+
+/**
+ * Free the error message returned by krb5_get_error_message().
+ *
+ * @param context Kerberos context
+ * @param msg error message to free, returned byg
+ *        krb5_get_error_message().
+ *
+ * @ingroup krb5_error
+ */
+
+KRB5_LIB_FUNCTION void KRB5_LIB_CALL
+krb5_free_error_message(krb5_context context, const char *msg)
+{
+    heim_free_error_message(context ? context->hcontext : NULL, msg);
+}
+
+
+/**
+ * Return the error string for the error code. The caller must not
+ * free the string.
+ *
+ * This function is deprecated since its not threadsafe.
+ *
+ * @param context Kerberos 5 context.
+ * @param code Kerberos error code.
+ *
+ * @return the error message matching code
+ *
+ * @ingroup krb5
+ */
+
+KRB5_LIB_FUNCTION const char* KRB5_LIB_CALL
+krb5_get_err_text(krb5_context context, krb5_error_code code)
+    KRB5_DEPRECATED_FUNCTION("Use krb5_get_error_message instead")
+{
+    return krb5_get_error_message(context, code);
+}