From: "Daniel P. Berrange" <berrange@xxxxxxxxxx>
The log message regex has been
[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}\.[0-9]{3}\+[0-9]{4}: [0-9]+: debug|info|warning|error :
The precedence of '|' is high though, so this is equivalent to matching
[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}\.[0-9]{3}\+[0-9]{4}: [0-9]+: debug
Or
info
Or
warning
Or
error :
Which is clearly not what it should have done. This caused the code to
skip over things which are not log messages. The solution is to simply
add brackets.
A test case is also added to validate correctness.
Signed-off-by: Daniel P. Berrange <berrange@xxxxxxxxxx>
---
.gitignore | 1 +
src/util/virlog.c | 5 +++-
tests/Makefile.am | 5 ++++
tests/virlogtest.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 77 insertions(+), 1 deletion(-)
create mode 100644 tests/virlogtest.c
diff --git a/.gitignore b/.gitignore
index b5824dc..db5abcd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -210,6 +210,7 @@
/tests/virkeycodetest
/tests/virkeyfiletest
/tests/virlockspacetest
+/tests/virlogtest
/tests/virnet*test
/tests/virportallocatortest
/tests/virshtest
diff --git a/src/util/virlog.c b/src/util/virlog.c
index 7ee5117..cc5032f 100644
--- a/src/util/virlog.c
+++ b/src/util/virlog.c
@@ -83,7 +83,7 @@ static regex_t *virLogRegex = NULL;
#define VIR_LOG_DATE_REGEX "[0-9]{4}-[0-9]{2}-[0-9]{2}"
#define VIR_LOG_TIME_REGEX "[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{3}\\+[0-9]{4}"
#define VIR_LOG_PID_REGEX "[0-9]+"
-#define VIR_LOG_LEVEL_REGEX "debug|info|warning|error"
+#define VIR_LOG_LEVEL_REGEX "(debug|info|warning|error)"
#define VIR_LOG_REGEX \
VIR_LOG_DATE_REGEX " " VIR_LOG_TIME_REGEX ": " \
@@ -1623,6 +1623,9 @@ virLogSetFromEnv(void)
{
char *debugEnv;
+ if (virLogInitialize() < 0)
+ return;
+
debugEnv = getenv("LIBVIRT_DEBUG");
if (debugEnv && *debugEnv)
virLogParseDefaultPriority(debugEnv);
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 3eda522..250cd8c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -126,6 +126,7 @@ test_programs = virshtest sockettest \
viridentitytest \
virkeycodetest \
virlockspacetest \
+ virlogtest \
virstringtest \
virportallocatortest \
sysinfotest \
@@ -716,6 +717,10 @@ virlockspacetest_SOURCES = \
virlockspacetest.c testutils.h testutils.c
virlockspacetest_LDADD = $(LDADDS)
+virlogtest_SOURCES = \
+ virlogtest.c testutils.h testutils.c
+virlogtest_LDADD = $(LDADDS)
+
virportallocatortest_SOURCES = \
virportallocatortest.c testutils.h testutils.c
virportallocatortest_LDADD = $(LDADDS)
diff --git a/tests/virlogtest.c b/tests/virlogtest.c
new file mode 100644
index 0000000..dfe0f75
--- /dev/null
+++ b/tests/virlogtest.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This 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 this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <config.h>
+
+#include "testutils.h"
+
+#include "virlog.h"
+
+struct testLogMatchData {
+ const char *str;
+ bool res;
+};
+
+static int
+testLogMatch(const void *opaque)
+{
+ const struct testLogMatchData *data = opaque;
+
+ bool got = virLogProbablyLogMessage(data->str);
+ if (got != data->res) {
+ fprintf(stderr, "Expected '%d' but got '%d' for '%s'\n",
+ data->res, got, data->str);
+ return -1;
+ }
+ return 0;
+}
+
+
+static int
+mymain(void)
+{
+ int ret = 0;
+
+#define TEST_LOG_MATCH(str, res) \
+ do { \
+ struct testLogMatchData data = { \
+ str, res \
+ }; \
+ if (virtTestRun("testLogMatch " # str, testLogMatch, &data) < 0) \
+ ret = -1; \
+ } while (0)
+
+ TEST_LOG_MATCH("2013-10-11 15:43:43.866+0000: 28302: info : libvirt version: 1.1.3", true);
+
+ TEST_LOG_MATCH("libvirt: error : cannot execute binary /usr/libexec/libvirt_lxc: No such file or directory", false);
+
+ return ret;
+}
+
+VIRT_TEST_MAIN(mymain)
--
1.8.3.1
--
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