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1 /*
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2 log.c
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3
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4 $Id: log.c 3 2000-01-04 11:35:42Z enz $
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5 */
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6
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7 #include <syslog.h>
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8 #include <stdarg.h>
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9 #include "common.h"
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10
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11 #define MAXLENGTH 240
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12
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13 struct
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14 {
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15 Bool interactive;
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16 } log = { FALSE };
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17
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18 void
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19 Log_init( Str name, Bool interactive, int facility )
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20 {
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21 int option = LOG_PID | LOG_CONS;
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22
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23 log.interactive = interactive;
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24 openlog( name, option, facility );
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25 }
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26
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27 #define DO_LOG( LEVEL ) \
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28 va_list ap; \
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29 Str t; \
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30 \
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31 va_start( ap, fmt ); \
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32 vsnprintf( t, MAXCHAR, fmt, ap ); \
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33 if ( MAXLENGTH < MAXCHAR ) \
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34 t[ MAXLENGTH ] = '\0'; \
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35 syslog( LEVEL, "%s", t ); \
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36 if ( log.interactive ) \
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37 fprintf( stderr, "%s\n", t ); \
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38 va_end( ap );
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39
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40 void
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41 Log_inf( const char *fmt, ... )
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42 {
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43 DO_LOG( LOG_INFO );
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44 }
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45
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46 void
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47 Log_err( const char *fmt, ... )
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48 {
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49 DO_LOG( LOG_ERR );
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50 }
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51
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52 /* Ensure the condition "cond" is true; otherwise log an error and return 1 */
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53 int
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54 Log_check(int cond, const char *fmt, ... )
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55 {
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56 if (!cond) {
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57 DO_LOG( LOG_ERR );
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58 return 1;
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59 }
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60 return 0;
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61 }
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62
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63 void
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64 Log_ntc( const char *fmt, ... )
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65 {
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66 DO_LOG( LOG_NOTICE );
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67 }
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68
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69 void
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70 Log_dbg( const char *fmt, ... )
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71 {
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72 #ifdef DEBUG
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73 DO_LOG( LOG_DEBUG );
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74 #endif
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75 }
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