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Make it possible to route messages to syslog

This commit is contained in:
Přemysl Eric Janouch 2014-07-15 22:23:53 +02:00
parent 18cb2941f3
commit a2a979ea2e
2 changed files with 44 additions and 13 deletions
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51
src/common.c
View File

@ -42,6 +42,7 @@
#include <strings.h>
#include <regex.h>
#include <libgen.h>
#include <syslog.h>
#include <sys/socket.h>
#include <sys/types.h>
@ -86,28 +87,54 @@ extern char **environ;
#define BLOCK_START do {
#define BLOCK_END } while (0)
// --- Utilities ---------------------------------------------------------------
// --- Logging -----------------------------------------------------------------
static void
print_message (FILE *stream, const char *type, const char *fmt, ...)
log_message_syslog (int prio, const char *quote, const char *fmt, va_list ap)
{
va_list va;
va_copy (va, ap);
int size = vsnprintf (NULL, 0, fmt, va);
va_end (va);
if (size < 0)
return;
char buf[size + 1];
if (vsnprintf (buf, sizeof buf, fmt, ap) >= 0)
syslog (prio, "%s%s", quote, buf);
}
static void
log_message_stdio (int prio, const char *quote, const char *fmt, va_list ap)
{
(void) prio;
FILE *stream = stderr;
fputs (quote, stream);
vfprintf (stream, fmt, ap);
fputs ("\n", stream);
}
static void (*g_log_message_real) (int, const char *, const char *, va_list)
= log_message_stdio;
static void
log_message (int priority, const char *quote, const char *fmt, ...)
ATTRIBUTE_PRINTF (3, 4);
static void
print_message (FILE *stream, const char *type, const char *fmt, ...)
log_message (int priority, const char *quote, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
fprintf (stream, "%s ", type);
vfprintf (stream, fmt, ap);
fputs ("\n", stream);
g_log_message_real (priority, quote, fmt, ap);
va_end (ap);
}
#define print_fatal(...) print_message (stderr, "fatal:", __VA_ARGS__)
#define print_error(...) print_message (stderr, "error:", __VA_ARGS__)
#define print_warning(...) print_message (stderr, "warning:", __VA_ARGS__)
#define print_status(...) print_message (stdout, "--", __VA_ARGS__)
#define print_fatal(...) log_message (LOG_ERR, "fatal: ", __VA_ARGS__)
#define print_error(...) log_message (LOG_ERR, "error: ", __VA_ARGS__)
#define print_warning(...) log_message (LOG_WARNING, "warning: ", __VA_ARGS__)
#define print_status(...) log_message (LOG_INFO, "-- ", __VA_ARGS__)
// --- Debugging and assertions ------------------------------------------------
@ -122,7 +149,7 @@ static bool g_soft_asserts_are_deadly; ///< soft_assert() aborts as well
#define print_debug(...) \
BLOCK_START \
if (g_debug_mode) \
print_message (stderr, "debug:", __VA_ARGS__); \
log_message (LOG_DEBUG, "debug: ", __VA_ARGS__); \
BLOCK_END
static void

6
src/kike.c
View File

@ -1414,7 +1414,11 @@ main (int argc, char *argv[])
}
// TODO: daemonize
// TODO: syslog (if not running in debug mode)
if (!g_debug_mode)
{
openlog (PROGRAM_NAME, LOG_NDELAY | LOG_NOWAIT | LOG_PID, 0);
g_log_message_real = log_message_syslog;
}
ctx.polling = true;
while (ctx.polling)