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[syslog] Pass internal syslog() priority through to syslog console

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Use a private ANSI escape sequence to convey the priority of an
internal syslog() message through to the syslog server.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-03-26 20:23:30 +01:00
parent c2875ae329
commit 3ff7927d2f
4 changed files with 53 additions and 14 deletions
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29
src/include/syslog.h
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@@ -10,6 +10,7 @@
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdarg.h>
#include <ipxe/ansiesc.h>
#include <config/console.h>
/**
@@ -55,6 +56,16 @@ extern void log_vprintf ( const char *fmt, va_list args );
extern void __attribute__ (( format ( printf, 1, 2 ) ))
log_printf ( const char *fmt, ... );
/** ANSI private escape sequence to set syslog priority
*
* @v priority Priority
*/
#define SYSLOG_SET_PRIORITY( priority ) \
"\033[" #priority "p"
/** ANSI private escape sequence to clear syslog priority */
#define SYSLOG_CLEAR_PRIORITY "\033[p"
/**
* Write message to system log
*
@@ -62,10 +73,11 @@ log_printf ( const char *fmt, ... );
* @v fmt Format string
* @v ... Arguments
*/
#define vsyslog( priority, fmt, args ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_vprintf ( fmt, (args) ); \
} \
#define vsyslog( priority, fmt, args ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_vprintf ( SYSLOG_SET_PRIORITY ( priority ) fmt \
SYSLOG_CLEAR_PRIORITY, (args) ); \
} \
} while ( 0 )
/**
@@ -75,10 +87,11 @@ log_printf ( const char *fmt, ... );
* @v fmt Format string
* @v ... Arguments
*/
#define syslog( priority, fmt, ... ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_printf ( fmt, ##__VA_ARGS__ ); \
} \
#define syslog( priority, fmt, ... ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_printf ( SYSLOG_SET_PRIORITY ( priority ) fmt \
SYSLOG_CLEAR_PRIORITY, ##__VA_ARGS__ ); \
} \
} while ( 0 )
#endif /* _SYSLOG_H */