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authorRainer Gerhards <rgerhards@adiscon.com>2008-04-16 10:26:54 +0200
committerRainer Gerhards <rgerhards@adiscon.com>2008-04-16 10:26:54 +0200
commit8f8f65abb66d1a7839c30c2d1b4b4d653a8990cc (patch)
tree8bd92ca19ae3cccd5b160c717960db88bb095e73 /runtime/errmsg.c
parent3af28bbd2dc4c79b242aad3b9e3f45cffe0f19d0 (diff)
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moved files to the runtime
there are still some files left which could go into the runtime, but I think we will delete most of them once we are done with the full modularization.
Diffstat (limited to 'runtime/errmsg.c')
-rw-r--r--runtime/errmsg.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/runtime/errmsg.c b/runtime/errmsg.c
new file mode 100644
index 00000000..42f84724
--- /dev/null
+++ b/runtime/errmsg.c
@@ -0,0 +1,122 @@
+/* The errmsg object.
+ *
+ * Module begun 2008-03-05 by Rainer Gerhards, based on some code
+ * from syslogd.c. I converted this module to lgpl and have checked that
+ * all contributors agreed to that step.
+ *
+ * Copyright 2008 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This file is part of the rsyslog runtime library.
+ *
+ * The rsyslog runtime library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The rsyslog runtime library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the rsyslog runtime library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ * A copy of the LGPL can be found in the file "COPYING.LESSER" in this distribution.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "rsyslog.h"
+#include "syslogd.h"
+#include "obj.h"
+#include "errmsg.h"
+#include "sysvar.h"
+#include "srUtils.h"
+#include "stringbuf.h"
+
+/* static data */
+DEFobjStaticHelpers
+
+
+/* ------------------------------ methods ------------------------------ */
+
+
+/* TODO: restructure this code some time. Especially look if we need
+ * to check errno and, if so, how to do that in a clean way.
+ */
+static void __attribute__((format(printf, 2, 3)))
+LogError(int __attribute__((unused)) iErrCode, char *fmt, ... )
+{
+ va_list ap;
+ char buf[1024];
+ char msg[1024];
+ char errStr[1024];
+ size_t lenBuf;
+
+ BEGINfunc
+ assert(fmt != NULL);
+ /* Format parameters */
+ va_start(ap, fmt);
+ lenBuf = vsnprintf(buf, sizeof(buf), fmt, ap);
+ if(lenBuf >= sizeof(buf)) {
+ /* if our buffer was too small, we simply truncate. */
+ lenBuf--;
+ }
+ va_end(ap);
+
+ /* Log the error now */
+ buf[sizeof(buf)/sizeof(char) - 1] = '\0'; /* just to be on the safe side... */
+
+ dbgprintf("Called LogError, msg: %s\n", buf);
+
+ if (errno == 0) {
+ snprintf(msg, sizeof(msg), "%s", buf);
+ } else {
+ rs_strerror_r(errno, errStr, sizeof(errStr));
+ snprintf(msg, sizeof(msg), "%s: %s", buf, errStr);
+ }
+ msg[sizeof(msg)/sizeof(char) - 1] = '\0'; /* just to be on the safe side... */
+ errno = 0;
+ logmsgInternal(LOG_SYSLOG|LOG_ERR, msg, ADDDATE);
+
+ ENDfunc
+}
+
+
+/* queryInterface function
+ * rgerhards, 2008-03-05
+ */
+BEGINobjQueryInterface(errmsg)
+CODESTARTobjQueryInterface(errmsg)
+ if(pIf->ifVersion != errmsgCURR_IF_VERSION) { /* check for current version, increment on each change */
+ ABORT_FINALIZE(RS_RET_INTERFACE_NOT_SUPPORTED);
+ }
+
+ /* ok, we have the right interface, so let's fill it
+ * Please note that we may also do some backwards-compatibility
+ * work here (if we can support an older interface version - that,
+ * of course, also affects the "if" above).
+ */
+ pIf->LogError = LogError;
+finalize_it:
+ENDobjQueryInterface(errmsg)
+
+
+/* Initialize the errmsg class. Must be called as the very first method
+ * before anything else is called inside this class.
+ * rgerhards, 2008-02-19
+ */
+BEGINAbstractObjClassInit(errmsg, 1, OBJ_IS_CORE_MODULE) /* class, version */
+ /* request objects we use */
+
+ /* set our own handlers */
+ENDObjClassInit(errmsg)
+
+/* vi:set ai:
+ */