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/*
* Utility functions to test message handling.
*
* These functions set up a message handler to trap warn and notice output
* into a buffer that can be inspected later, allowing testing of error
* handling.
*
* Copyright 2006, 2007, 2009
* Board of Trustees, Leland Stanford Jr. University
* Copyright (c) 2004, 2005, 2006
* by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
* 2002, 2003 by The Internet Software Consortium and Rich Salz
*
* See LICENSE for licensing terms.
*/
#include <config.h>
#include <portable/system.h>
#include <tests/tap/messages.h>
#include <util/concat.h>
#include <util/macros.h>
#include <util/messages.h>
#include <util/xmalloc.h>
/* A global buffer into which message_log_buffer stores error messages. */
char *errors = NULL;
/*
* An error handler that appends all errors to the errors global. Used by
* error_capture.
*/
static void
message_log_buffer(int len, const char *fmt, va_list args, int error UNUSED)
{
char *message;
message = xmalloc(len + 1);
vsnprintf(message, len + 1, fmt, args);
if (errors == NULL) {
errors = concat(message, "\n", (char *) 0);
} else {
char *new_errors;
new_errors = concat(errors, message, "\n", (char *) 0);
free(errors);
errors = new_errors;
}
free(message);
}
/*
* Turn on the capturing of errors. Errors will be stored in the global
* errors variable where they can be checked by the test suite. Capturing is
* turned off with errors_uncapture.
*/
void
errors_capture(void)
{
if (errors != NULL) {
free(errors);
errors = NULL;
}
message_handlers_warn(1, message_log_buffer);
message_handlers_notice(1, message_log_buffer);
}
/*
* Turn off the capturing of errors again.
*/
void
errors_uncapture(void)
{
message_handlers_warn(1, message_log_stderr);
message_handlers_notice(1, message_log_stdout);
}
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