syslog.h File Reference

#include <stdarg.h>

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Macros
#define	LOG_EMERG   0 /* system is unusable */
#define	LOG_ALERT   1 /* action must be taken immediately */
#define	LOG_CRIT   2 /* critical conditions */
#define	LOG_ERR   3 /* error conditions */
#define	LOG_WARNING   4 /* warning conditions */
#define	LOG_NOTICE   5 /* normal but significant condition */
#define	LOG_INFO   6 /* informational */
#define	LOG_DEBUG   7 /* debug-level messages */
#define	LOG_PRIMASK   0x07 /* mask to extract priority part (internal) */
#define	LOG_PRI(p)   ((p) & LOG_PRIMASK)
#define	LOG_MAKEPRI(fac, pri)   (((fac) << 3) | (pri))
#define	LOG_KERN   (0<<3) /* kernel messages */
#define	LOG_USER   (1<<3) /* random user-level messages */
#define	LOG_MAIL   (2<<3) /* mail system */
#define	LOG_DAEMON   (3<<3) /* system daemons */
#define	LOG_AUTH   (4<<3) /* security/authorization messages */
#define	LOG_SYSLOG   (5<<3) /* messages generated internally by syslogd */
#define	LOG_LPR   (6<<3) /* line printer subsystem */
#define	LOG_NEWS   (7<<3) /* network news subsystem */
#define	LOG_UUCP   (8<<3) /* UUCP subsystem */
#define	LOG_CRON   (9<<3) /* clock daemon */
#define	LOG_AUTHPRIV   (10<<3) /* security/authorization messages (private) */
#define	LOG_FTP   (11<<3) /* ftp daemon */
#define	LOG_LOCAL0   (16<<3) /* reserved for local use */
#define	LOG_LOCAL1   (17<<3) /* reserved for local use */
#define	LOG_LOCAL2   (18<<3) /* reserved for local use */
#define	LOG_LOCAL3   (19<<3) /* reserved for local use */
#define	LOG_LOCAL4   (20<<3) /* reserved for local use */
#define	LOG_LOCAL5   (21<<3) /* reserved for local use */
#define	LOG_LOCAL6   (22<<3) /* reserved for local use */
#define	LOG_LOCAL7   (23<<3) /* reserved for local use */
#define	LOG_NFACILITIES   24 /* current number of facilities */
#define	LOG_FACMASK   0x03f8 /* mask to extract facility part */
#define	LOG_FAC(p)   (((p) & LOG_FACMASK) >> 3)
#define	LOG_MASK(pri)   (1 << (pri)) /* mask for one priority */
#define	LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1) /* all priorities through pri */
#define	LOG_PID   0x01 /* log the pid with each message */
#define	LOG_CONS   0x02 /* log on the console if errors in sending */
#define	LOG_ODELAY   0x04 /* delay open until first syslog() (default) */
#define	LOG_NDELAY   0x08 /* don't delay open */
#define	LOG_NOWAIT   0x10 /* don't wait for console forks: DEPRECATED */
#define	LOG_PERROR   0x20 /* log to stderr as well */
#define	SYSLOG_PORT   514

Functions
void	closelog (void)
void	openlog (char *__ident, int __option, int __facility)
int	setlogmask (int __mask)
void	syslog (int __pri, char *__fmt,...)
void	vsyslog (int __pri, char *__fmt, va_list __ap)
const char *	set_syslog_conf_dir (const char *dir)

Macro Definition Documentation

LOG_ALERT

#define LOG_ALERT   1 /* action must be taken immediately */

Definition at line 46 of file syslog.h.

LOG_AUTH

#define LOG_AUTH   (4<<3) /* security/authorization messages */

Definition at line 91 of file syslog.h.

LOG_AUTHPRIV

#define LOG_AUTHPRIV   (10<<3) /* security/authorization messages (private) */

Definition at line 97 of file syslog.h.

LOG_CONS

#define LOG_CONS   0x02 /* log on the console if errors in sending */

Definition at line 157 of file syslog.h.

LOG_CRIT

#define LOG_CRIT   2 /* critical conditions */

Definition at line 47 of file syslog.h.

LOG_CRON

#define LOG_CRON   (9<<3) /* clock daemon */

Definition at line 96 of file syslog.h.

LOG_DAEMON

#define LOG_DAEMON   (3<<3) /* system daemons */

Definition at line 90 of file syslog.h.

LOG_DEBUG

#define LOG_DEBUG   7 /* debug-level messages */

Definition at line 52 of file syslog.h.

LOG_EMERG

#define LOG_EMERG   0 /* system is unusable */

Definition at line 45 of file syslog.h.

LOG_ERR

#define LOG_ERR   3 /* error conditions */

Definition at line 48 of file syslog.h.

LOG_FAC

#define LOG_FAC

(

p

)

(((p) & LOG_FACMASK) >> 3)

Definition at line 113 of file syslog.h.

LOG_FACMASK

#define LOG_FACMASK   0x03f8 /* mask to extract facility part */

Definition at line 111 of file syslog.h.

LOG_FTP

#define LOG_FTP   (11<<3) /* ftp daemon */

Definition at line 98 of file syslog.h.

LOG_INFO

#define LOG_INFO   6 /* informational */

Definition at line 51 of file syslog.h.

LOG_KERN

#define LOG_KERN   (0<<3) /* kernel messages */

Definition at line 87 of file syslog.h.

LOG_LOCAL0

#define LOG_LOCAL0   (16<<3) /* reserved for local use */

Definition at line 101 of file syslog.h.

LOG_LOCAL1

#define LOG_LOCAL1   (17<<3) /* reserved for local use */

Definition at line 102 of file syslog.h.

LOG_LOCAL2

#define LOG_LOCAL2   (18<<3) /* reserved for local use */

Definition at line 103 of file syslog.h.

LOG_LOCAL3

#define LOG_LOCAL3   (19<<3) /* reserved for local use */

Definition at line 104 of file syslog.h.

LOG_LOCAL4

#define LOG_LOCAL4   (20<<3) /* reserved for local use */

Definition at line 105 of file syslog.h.

LOG_LOCAL5

#define LOG_LOCAL5   (21<<3) /* reserved for local use */

Definition at line 106 of file syslog.h.

LOG_LOCAL6

#define LOG_LOCAL6   (22<<3) /* reserved for local use */

Definition at line 107 of file syslog.h.

LOG_LOCAL7

#define LOG_LOCAL7   (23<<3) /* reserved for local use */

Definition at line 108 of file syslog.h.

LOG_LPR

#define LOG_LPR   (6<<3) /* line printer subsystem */

Definition at line 93 of file syslog.h.

LOG_MAIL

#define LOG_MAIL   (2<<3) /* mail system */

Definition at line 89 of file syslog.h.

LOG_MAKEPRI

#define LOG_MAKEPRI	(		fac,
			pri
	)		(((fac) << 3) | (pri))

Definition at line 57 of file syslog.h.

LOG_MASK

#define LOG_MASK

(

pri

)

(1 << (pri)) /* mask for one priority */

Definition at line 147 of file syslog.h.

LOG_NDELAY

#define LOG_NDELAY   0x08 /* don't delay open */

Definition at line 159 of file syslog.h.

LOG_NEWS

#define LOG_NEWS   (7<<3) /* network news subsystem */

Definition at line 94 of file syslog.h.

LOG_NFACILITIES

#define LOG_NFACILITIES   24 /* current number of facilities */

Definition at line 110 of file syslog.h.

LOG_NOTICE

#define LOG_NOTICE   5 /* normal but significant condition */

Definition at line 50 of file syslog.h.

LOG_NOWAIT

#define LOG_NOWAIT   0x10 /* don't wait for console forks: DEPRECATED */

Definition at line 160 of file syslog.h.

LOG_ODELAY

#define LOG_ODELAY   0x04 /* delay open until first syslog() (default) */

Definition at line 158 of file syslog.h.

LOG_PERROR

#define LOG_PERROR   0x20 /* log to stderr as well */

Definition at line 161 of file syslog.h.

LOG_PID

#define LOG_PID   0x01 /* log the pid with each message */

Definition at line 156 of file syslog.h.

LOG_PRI

#define LOG_PRI

(

p

)

((p) & LOG_PRIMASK)

Definition at line 56 of file syslog.h.

LOG_PRIMASK

#define LOG_PRIMASK   0x07 /* mask to extract priority part (internal) */

Definition at line 54 of file syslog.h.

LOG_SYSLOG

#define LOG_SYSLOG   (5<<3) /* messages generated internally by syslogd */

Definition at line 92 of file syslog.h.

LOG_UPTO

#define LOG_UPTO

(

pri

)

((1 << ((pri)+1)) - 1) /* all priorities through pri */

Definition at line 148 of file syslog.h.

LOG_USER

#define LOG_USER   (1<<3) /* random user-level messages */

Definition at line 88 of file syslog.h.

LOG_UUCP

#define LOG_UUCP   (8<<3) /* UUCP subsystem */

Definition at line 95 of file syslog.h.

LOG_WARNING

#define LOG_WARNING   4 /* warning conditions */

Definition at line 49 of file syslog.h.

SYSLOG_PORT

#define SYSLOG_PORT   514

Definition at line 163 of file syslog.h.

Function Documentation

closelog()

void closelog

(

void

)

Definition at line 153 of file syslog.c.

{
    if( !initialized )
        return;
    closesocket( sock );
    WSACleanup();
    initialized = FALSE;
}

Referenced by openlog().

openlog()

void openlog	(	char *	__ident,
		int	__option,
		int	__facility
	)

Definition at line 167 of file syslog.c.

{
    BOOL failed = TRUE, wsa_initialized = FALSE;
    WSADATA wsd;
    SOCKADDR_IN sa_local;
    DWORD n;
    int size;
 
    if( initialized )
        return;
 
    syslog_facility = facility? facility : LOG_USER;
 
    /* FIXME: should we reset logmask? */
 
    if( option & LOG_PID )
        snprintf( str_pid, sizeof(str_pid), "[%lu]", GetCurrentProcessId() );
    else
        str_pid[0] = 0;
 
    /* FIXME: handle other options */
 
    n = sizeof(local_hostname);
    if( !GetComputerName( local_hostname, &n ) )
        goto done;
 
    sock = INVALID_SOCKET;
    if( WSAStartup( MAKEWORD( 2, 2 ), &wsd ) )
        goto done;
    wsa_initialized = TRUE;
 
    init_logger_addr();
 
    for( n = 0;; n++ )
    {
        sock = socket( AF_INET, SOCK_DGRAM, 0 );
        if( INVALID_SOCKET == sock )
            goto done;
 
        memset( &sa_local, 0, sizeof(SOCKADDR_IN) );
        sa_local.sin_family = AF_INET;
        if( bind( sock, (SOCKADDR*) &sa_local, sizeof(SOCKADDR_IN) ) == 0 )
            break;
        closesocket( sock );
        sock = INVALID_SOCKET;
        if( n == 100 )
            goto done;
        Sleep(0);
    }
 
    /* get size of datagramm */
    size = sizeof(datagramm_size);
    if( getsockopt( sock, SOL_SOCKET, SO_MAX_MSG_SIZE, (char*) &datagramm_size, &size ) )
        goto done;
    if( datagramm_size - strlen(local_hostname) - (ident? strlen(ident) : 0) < 64 )
        goto done;
    if( datagramm_size > sizeof(datagramm) )
        datagramm_size = sizeof(datagramm);
 
    if( atexit( closelog ) )
        goto done;
 
    syslog_ident = ident;
    syslog_facility = facility;
    failed = FALSE;
 
done:
    if( failed )
    {
        if( sock != INVALID_SOCKET ) closesocket( sock );
        if( wsa_initialized ) WSACleanup();
    }
    initialized = !failed;
}

Referenced by vsyslog().

set_syslog_conf_dir()

const char * set_syslog_conf_dir

(

const char *

dir

)

Definition at line 55 of file syslog.c.

{
    const char *ret = syslog_conf_dir;
    syslog_conf_dir = dir;
    return ret;
}

setlogmask()

int setlogmask

(

int

__mask

)

Definition at line 247 of file syslog.c.

{
    int ret = log_mask;
 
    if( mask )
        log_mask = mask;
    return ret;
}

syslog()

void syslog	(	int	__pri,
		char *	__fmt,
			...
	)

Definition at line 261 of file syslog.c.

{
    va_list ap;
 
    va_start( ap, fmt );
    vsyslog( pri, fmt, ap );
    va_end( ap );
}

vsyslog()

void vsyslog	(	int	__pri,
		char *	__fmt,
		va_list	__ap
	)

Definition at line 275 of file syslog.c.

{
    static char *month[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                            "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
    SYSTEMTIME stm;
    int len;
    char *p;
 
    if( !(LOG_MASK( LOG_PRI( pri )) & log_mask) )
        return;
 
    openlog( NULL, 0, pri & LOG_FACMASK );
    if( !initialized )
        return;
 
    if( !(pri & LOG_FACMASK) )
        pri |= syslog_facility;
 
    GetLocalTime( &stm );
    len = sprintf( datagramm, "<%d>%s %2d %02d:%02d:%02d %s %s%s: ",
                   pri,
                   month[ stm.wMonth - 1 ], stm.wDay, stm.wHour, stm.wMinute, stm.wSecond,
                   local_hostname, syslog_ident? syslog_ident : "", str_pid );
    vsnprintf( datagramm + len, datagramm_size - len, fmt, ap );
    p = strchr( datagramm, '\n' );
    if( p )
        *p = 0;
    p = strchr( datagramm, '\r' );
    if( p )
        *p = 0;
 
    sendto( sock, datagramm, strlen(datagramm), 0, (SOCKADDR*) &sa_logger, sizeof(SOCKADDR_IN) );
}

Referenced by syslog().