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report.c revision 1.1 
      1 /*
      2  * report() - calls syslog
      3  */
      4 
      5 #ifdef	__STDC__
      6 #include <stdarg.h>
      7 #else
      8 #include <varargs.h>
      9 #endif
     10 
     11 #include <stdio.h>
     12 #include <syslog.h>
     13 
     14 #include "report.h"
     15 
     16 #ifndef LOG_NDELAY
     17 #define LOG_NDELAY	0
     18 #endif
     19 #ifndef LOG_DAEMON
     20 #define LOG_DAEMON	0
     21 #endif
     22 #ifndef	LOG_BOOTP
     23 #define LOG_BOOTP	LOG_DAEMON
     24 #endif
     25 
     26 extern int debug;
     27 extern char *progname;
     28 
     29 /*
     30  * This is initialized so you get stderr until you call
     31  *	report_init()
     32  */
     33 static int stderr_only = 1;
     34 
     35 void
     36 report_init(nolog)
     37 	int nolog;
     38 {
     39 	stderr_only = nolog;
     40 #ifdef SYSLOG
     41 	if (!stderr_only) {
     42 		openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP);
     43 	}
     44 #endif
     45 }
     46 
     47 /*
     48  * This routine reports errors and such via stderr and syslog() if
     49  * appopriate.  It just helps avoid a lot of "#ifdef SYSLOG" constructs
     50  * from being scattered throughout the code.
     51  *
     52  * The syntax is identical to syslog(3), but %m is not considered special
     53  * for output to stderr (i.e. you'll see "%m" in the output. . .).  Also,
     54  * control strings should normally end with \n since newlines aren't
     55  * automatically generated for stderr output (whereas syslog strips out all
     56  * newlines and adds its own at the end).
     57  */
     58 
     59 static char *levelnames[] = {
     60 #ifdef LOG_SALERT
     61 	"level(0): ",
     62 	"alert(1): ",
     63 	"alert(2): ",
     64 	"emerg(3): ",
     65 	"error(4): ",
     66 	"crit(5):  ",
     67 	"warn(6):  ",
     68 	"note(7):  ",
     69 	"info(8):  ",
     70 	"debug(9): ",
     71 	"level(?): "
     72 #else
     73 	"emerg(0): ",
     74 	"alert(1): ",
     75 	"crit(2):  ",
     76 	"error(3): ",
     77 	"warn(4):  ",
     78 	"note(5):  ",
     79 	"info(6):  ",
     80 	"debug(7): ",
     81 	"level(?): "
     82 #endif
     83 };
     84 static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]);
     85 
     86 
     87 /*
     88  * Print a log message using syslog(3) and/or stderr.
     89  * The message passed in should not include a newline.
     90  */
     91 #ifdef	__STDC__
     92 void
     93 report(int priority, char *fmt,...)
     94 #else
     95 /*VARARGS2*/
     96 void
     97 report(priority, fmt, va_alist)
     98 	int priority;
     99 	char *fmt;
    100 	va_dcl
    101 #endif
    102 {
    103 	va_list ap;
    104 	static char buf[128];
    105 
    106 	if ((priority < 0) || (priority >= numlevels)) {
    107 		priority = numlevels - 1;
    108 	}
    109 #ifdef	__STDC__
    110 	va_start(ap, fmt);
    111 #else
    112 	va_start(ap);
    113 #endif
    114 	vsprintf(buf, fmt, ap);
    115 	va_end(ap);
    116 
    117 	/*
    118 	 * Print the message
    119 	 */
    120 	if (stderr_only || (debug > 2)) {
    121 		fprintf(stderr, "%s: %s %s\n",
    122 				progname, levelnames[priority], buf);
    123 	}
    124 #ifdef SYSLOG
    125 	if (!stderr_only)
    126 		syslog((priority | LOG_BOOTP), "%s", buf);
    127 #endif
    128 }
    129 
    130 
    132 
    133 /*
    134  * Return pointer to static string which gives full filesystem error message.
    135  */
    136 char *
    137 get_errmsg()
    138 {
    139 	extern int errno;
    140 	extern char *strerror();
    141 
    142 	return strerror(errno);
    143 }
    144 
    145 /*
    146  * Local Variables:
    147  * tab-width: 4
    148  * c-indent-level: 4
    149  * c-argdecl-indent: 4
    150  * c-continued-statement-offset: 4
    151  * c-continued-brace-offset: -4
    152  * c-label-offset: -4
    153  * c-brace-offset: 0
    154  * End:
    155  */
    156