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#include <stdarg.h>
#include <stdio.h>
#include <syslog.h>
#include <sys/time.h>
#include <time.h>
#include "cputemp2maxfreq.h"
#include <string.h>
extern struct s_config config;
// These functions are not called directly. They are set by argparse in the
// config.logger function pointer.
// No logging at all
void logger_none(char *format,...) { }
// Logging to stdout
void logger_stdout(char *format,...)
{
va_list args;
struct timeval unixtime;
struct tm *time;
char timestring[255];
gettimeofday(&unixtime,NULL);
time=localtime(&unixtime.tv_sec);
strftime(timestring,255,"%F %T",time);
printf("%s: ",timestring);
va_start(args,format);
vprintf(format,args);
va_end(args);
putchar(10);
}
// Logging to syslog
void logger_syslog(char *format,...)
{
va_list args;
va_start(args,format);
vsyslog(LOG_DAEMON||LOG_CRIT,format,args);
va_end(args);
}
// Logging to kernel log buffer (/dev/kmsg)
void logger_kmsg(char *format,...)
{
va_list args;
FILE *kmsg;
char buffer[255];
kmsg=fopen("/dev/kmsg","w");
if (kmsg!=NULL)
{
fprintf(kmsg,"cputemp2maxfreq: ");
va_start(args,format);
vfprintf(kmsg,format,args);
va_end(args);
putc(10,kmsg);
fclose(kmsg);
} else {
va_start(args,format);
vsnprintf(buffer,sizeof(buffer),format,args);
va_end(args);
strcpy(config.logger_name,"stdout");
config.logger=&logger_stdout;
config.logger("Failed to open /dev/kmsg, falling back to stdout logging.");
config.logger(buffer);
}
}
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