/*%
* Set up a logging category according to the named.conf data
* in 'ccat' and add it to 'logconfig'.
*/
static isc_result_t
category_fromconf(const cfg_obj_t *ccat, isc_logconfig_t *logconfig) {
isc_result_t result;
const char *catname;
isc_logcategory_t *category;
isc_logmodule_t *module;
const cfg_obj_t *destinations = NULL;
const cfg_listelt_t *element = NULL;
catname = cfg_obj_asstring(cfg_tuple_get(ccat, "name"));
category = isc_log_categorybyname(ns_g_lctx, catname);
if (category == NULL) {
cfg_obj_log(ccat, ns_g_lctx, ISC_LOG_ERROR,
"unknown logging category '%s' ignored",
catname);
/*
* Allow further processing by returning success.
*/
return (ISC_R_SUCCESS);
}
if (logconfig == NULL)
return (ISC_R_SUCCESS);
module = NULL;
destinations = cfg_tuple_get(ccat, "destinations");
for (element = cfg_list_first(destinations);
element != NULL;
element = cfg_list_next(element))
{
const cfg_obj_t *channel = cfg_listelt_value(element);
const char *channelname = cfg_obj_asstring(channel);
result = isc_log_usechannel(logconfig, channelname, category,
module);
if (result != ISC_R_SUCCESS) {
isc_log_write(ns_g_lctx, CFG_LOGCATEGORY_CONFIG,
NS_LOGMODULE_SERVER, ISC_LOG_ERROR,
"logging channel '%s': %s", channelname,
isc_result_totext(result));
return (result);
}
}
return (ISC_R_SUCCESS);
}
int
main(int argc, char **argv) {
const char *progname, *syslog_file, *message;
int ch, i, file_versions, stderr_line;
isc_boolean_t show_final_mem = ISC_FALSE;
isc_log_t *lctx;
isc_logconfig_t *lcfg;
isc_mem_t *mctx;
isc_result_t result;
isc_logdestination_t destination;
const isc_logcategory_t *category;
const isc_logmodule_t *module;
progname = strrchr(*argv, '/');
if (progname != NULL)
progname++;
else
progname = *argv;
syslog_file = SYSLOG_FILE;
file_versions = FILE_VERSIONS;
while ((ch = isc_commandline_parse(argc, argv, "ms:r:")) != -1) {
switch (ch) {
case 'm':
show_final_mem = ISC_TRUE;
break;
case 's':
syslog_file = isc_commandline_argument;
break;
case 'r':
file_versions = atoi(isc_commandline_argument);
if (file_versions < 0 &&
file_versions != ISC_LOG_ROLLNEVER &&
file_versions != ISC_LOG_ROLLINFINITE) {
fprintf(stderr, "%s: file rotations must be "
"%d (ISC_LOG_ROLLNEVER),\n\t"
"%d (ISC_LOG_ROLLINFINITE) "
"or > 0\n", progname,
ISC_LOG_ROLLNEVER,
ISC_LOG_ROLLINFINITE);
exit(1);
}
break;
case '?':
fprintf(stderr, usage, progname);
exit(1);
}
}
argc -= isc_commandline_index;
argv += isc_commandline_index;
if (argc > 0) {
fprintf(stderr, usage, progname);
exit(1);
}
fprintf(stderr, "EXPECT:\n%s%d%s%s%s",
"8 lines to stderr (first 4 numbered, #3 repeated)\n",
file_versions == 0 || file_versions == ISC_LOG_ROLLNEVER ? 1 :
file_versions > 0 ? file_versions + 1 : FILE_VERSIONS + 1,
" " TEST_FILE " files, and\n",
"2 lines to syslog\n",
"lines ending with exclamation marks are errors\n\n");
isc_log_opensyslog(progname, LOG_PID, LOG_DAEMON);
mctx = NULL;
lctx = NULL;
lcfg = NULL;
CHECK(isc_mem_create(0, 0, &mctx));
CHECK(isc_log_create(mctx, &lctx, &lcfg));
CHECK(isc_log_settag(lcfg, progname));
isc_log_setcontext(lctx);
dns_log_init(lctx);
dns_log_setcontext(lctx);
/*
* Test isc_log_categorybyname and isc_log_modulebyname.
*/
category = isc_log_categorybyname(lctx, "notify");
if (category != NULL)
fprintf(stderr, "%s category found. (expected)\n",
category->name);
else
fprintf(stderr, "notify category not found!\n");
module = isc_log_modulebyname(lctx, "xyzzy");
if (module != NULL)
fprintf(stderr, "%s module found!\n", module->name);
else
fprintf(stderr, "xyzzy module not found. (expected)\n");
/*
* Create a file channel to test file opening, size limiting and
* version rolling.
*/
destination.file.name = TEST_FILE;
destination.file.maximum_size = 1;
destination.file.versions = file_versions;
CHECK(isc_log_createchannel(lcfg, "file_test", ISC_LOG_TOFILE,
ISC_LOG_INFO, &destination,
ISC_LOG_PRINTTIME|
ISC_LOG_PRINTTAG|
ISC_LOG_PRINTLEVEL|
ISC_LOG_PRINTCATEGORY|
ISC_LOG_PRINTMODULE));
/*
* Create a dynamic debugging channel to a file descriptor.
*/
destination.file.stream = stderr;
CHECK(isc_log_createchannel(lcfg, "debug_test", ISC_LOG_TOFILEDESC,
ISC_LOG_DYNAMIC, &destination,
ISC_LOG_PRINTTIME|
ISC_LOG_PRINTLEVEL|
ISC_LOG_DEBUGONLY));
/*
* Test the usability of the four predefined logging channels.
*/
CHECK(isc_log_usechannel(lcfg, "default_syslog",
DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_CACHE));
CHECK(isc_log_usechannel(lcfg, "default_stderr",
DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_CACHE));
CHECK(isc_log_usechannel(lcfg, "default_debug",
DNS_LOGCATEGORY_DATABASE,
DNS_LOGMODULE_CACHE));
CHECK(isc_log_usechannel(lcfg, "null",
DNS_LOGCATEGORY_DATABASE,
NULL));
/*
* Use the custom channels.
*/
CHECK(isc_log_usechannel(lcfg, "file_test",
DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DB));
CHECK(isc_log_usechannel(lcfg, "debug_test",
DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_RBTDB));
fprintf(stderr, "\n==> stderr begin\n");
/*
* Write to the internal default by testing both a category for which
* no channel has been specified and a category which was specified
* but not with the named module.
*/
stderr_line = 1;
isc_log_write(lctx, DNS_LOGCATEGORY_SECURITY, DNS_LOGMODULE_RBT,
ISC_LOG_CRITICAL, "%s (%d)",
"Unspecified category and unspecified module to stderr",
stderr_line++);
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBT,
ISC_LOG_CRITICAL, "%s (%d)",
"Specified category and unspecified module to stderr",
stderr_line++);
/*
* Write to default_syslog, default_stderr and default_debug.
*/
isc_log_write(lctx, DNS_LOGCATEGORY_DATABASE, DNS_LOGMODULE_CACHE,
ISC_LOG_WARNING, "%s (%d twice)",
"Using the predefined channels to syslog+stderr",
stderr_line++);
/*
* Write to predefined null channel.
*/
isc_log_write(lctx, DNS_LOGCATEGORY_DATABASE, DNS_LOGMODULE_RBTDB,
ISC_LOG_INFO, "This is to null and should not appear!");
/*
* Reset the internal default to use syslog instead of stderr,
* and test it.
*/
CHECK(isc_log_usechannel(lcfg, "default_syslog",
ISC_LOGCATEGORY_DEFAULT, NULL));
isc_log_write(lctx, DNS_LOGCATEGORY_SECURITY, DNS_LOGMODULE_RBT,
ISC_LOG_ERROR, "%s%s",
"This message to the redefined default category should ",
"be second in syslog");
/*
* Write to the file channel.
*/
if (file_versions >= 0 || file_versions == ISC_LOG_ROLLINFINITE) {
/*
* If file_versions is 0 or ISC_LOG_ROLLINFINITE, write
* the "should not appear" and "should be in file" messages
* to ensure they get rolled.
*/
if (file_versions <= 0)
file_versions = FILE_VERSIONS;
else
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DB, ISC_LOG_NOTICE,
"This should be rolled over "
"and not appear!");
for (i = file_versions - 1; i >= 0; i--)
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DB, ISC_LOG_NOTICE,
"should be in file %d/%d", i,
file_versions - 1);
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DB, ISC_LOG_NOTICE,
"should be in base file");
} else {
file_versions = FILE_VERSIONS;
for (i = 1; i <= file_versions; i++)
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DB, ISC_LOG_NOTICE,
"This is message %d in the log file", i);
}
/*
* Write a debugging message to a category that has no
* debugging channels for the named module.
*/
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_DB,
ISC_LOG_DEBUG(1),
"This debug message should not appear!");
/*
* Write debugging messages to a dynamic debugging channel.
*/
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_CRITICAL, "This critical message should "
"not appear because the debug level is 0!");
isc_log_setdebuglevel(lctx, 3);
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_DEBUG(1), "%s (%d)",
"Dynamic debugging to stderr", stderr_line++);
isc_log_write(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_DEBUG(5),
"This debug level is too high and should not appear!");
/*
* Test out the duplicate filtering using the debug_test channel.
*/
isc_log_setduplicateinterval(lcfg, 10);
message = "This message should appear only once on stderr";
isc_log_write1(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_CRITICAL, "%s", message);
isc_log_write1(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_CRITICAL, message);
isc_log_setduplicateinterval(lcfg, 1);
message = "This message should appear twice on stderr";
isc_log_write1(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_CRITICAL, message);
sleep(2);
isc_log_write1(lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_RBTDB,
ISC_LOG_CRITICAL, message);
/*
* Review where everything went.
* XXXDCL NT
*/
fputc('\n', stderr);
system("head " TEST_FILE "*; rm -f " TEST_FILE "*");
freopen(syslog_file, "r", stdin);
fprintf(stderr, "\n==> %s <==\n", syslog_file);
system("tail -2");
fputc('\n', stderr);
isc_log_destroy(&lctx);
if (show_final_mem)
isc_mem_stats(mctx, stderr);
return (0);
}