137 lines
2.5 KiB
C
137 lines
2.5 KiB
C
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/*
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* report() - calls syslog
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <string.h>
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#include <errno.h>
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#include "report.h"
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#ifndef LOG_NDELAY
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#define LOG_NDELAY 0
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#endif
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#ifndef LOG_DAEMON
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#define LOG_DAEMON 0
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#endif
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#ifndef LOG_BOOTP
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#define LOG_BOOTP LOG_DAEMON
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#endif
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extern int debug;
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extern char *progname;
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/*
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* This is initialized so you get stderr until you call
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* report_init()
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*/
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static int stderr_only = 1;
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void
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report_init(int nolog)
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{
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stderr_only = nolog;
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#ifdef SYSLOG
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if (!stderr_only) {
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openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP);
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}
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#endif
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}
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/*
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* This routine reports errors and such via stderr and syslog() if
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* appopriate. It just helps avoid a lot of "#ifdef SYSLOG" constructs
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* from being scattered throughout the code.
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*
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* The syntax is identical to syslog(3), but %m is not considered special
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* for output to stderr (i.e. you'll see "%m" in the output. . .). Also,
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* control strings should normally end with \n since newlines aren't
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* automatically generated for stderr output (whereas syslog strips out all
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* newlines and adds its own at the end).
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*/
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static char *levelnames[] = {
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#ifdef LOG_SALERT
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"level(0): ",
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"alert(1): ",
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"alert(2): ",
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"emerg(3): ",
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"error(4): ",
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"crit(5): ",
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"warn(6): ",
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"note(7): ",
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"info(8): ",
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"debug(9): ",
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"level(?): "
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#else
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"emerg(0): ",
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"alert(1): ",
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"crit(2): ",
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"error(3): ",
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"warn(4): ",
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"note(5): ",
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"info(6): ",
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"debug(7): ",
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"level(?): "
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#endif
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};
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static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]);
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/*
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* Print a log message using syslog(3) and/or stderr.
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* The message passed in should not include a newline.
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*/
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void
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report(int priority, const char *fmt,...)
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{
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va_list ap;
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static char buf[128];
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if ((priority < 0) || (priority >= numlevels)) {
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priority = numlevels - 1;
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}
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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/*
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* Print the message
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*/
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if (stderr_only || (debug > 2)) {
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fprintf(stderr, "%s: %s %s\n",
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progname, levelnames[priority], buf);
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}
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#ifdef SYSLOG
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if (!stderr_only)
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syslog((priority | LOG_BOOTP), "%s", buf);
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#endif
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}
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/*
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* Return pointer to static string which gives full filesystem error message.
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*/
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const char *
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get_errmsg(void)
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{
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return strerror(errno);
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}
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/*
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* Local Variables:
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* tab-width: 4
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* c-indent-level: 4
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* c-argdecl-indent: 4
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* c-continued-statement-offset: 4
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* c-continued-brace-offset: -4
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* c-label-offset: -4
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* c-brace-offset: 0
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* End:
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*/
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