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#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <syslog.h>
#include "reporting.h"
int verbosity_level = REPORT_WARNING;
static int syslog_flag = 0;
/* for converting our own levels to syslog's levels: */
static int log_levels[5] = { LOG_ALERT, LOG_ERR, LOG_WARNING, LOG_INFO, LOG_DEBUG };
void reporting_init(const char *program_name)
{
openlog(program_name, LOG_PID, LOG_USER);
/* reporting to syslog is on by default if stderr is not printed at a terminal */
if (!isatty(fileno(stderr)))
reporting_use_syslog(1);
}
void reporting_use_syslog(int flag)
{
syslog_flag = flag;
}
void reporting_verbosity(int level)
{
verbosity_level = level;
}
void report_message(int level, const char *format, ...)
{
va_list args;
va_start(args, format);
if(syslog_flag || level == REPORT_ALERT) {
vsyslog(LOG_USER | log_levels[level], format, args);
/* va_list can only be used once */
va_end(args);
va_start(args, format);
}
vfprintf(stderr, format, args);
va_end(args);
}
/* For messages which contain sensitive information, and should not be shown to
* all users: */
void report_private_message(int level, const char *format, ...)
{
if(level <= verbosity_level)
{
va_list args;
va_start(args, format);
if(syslog_flag || level == REPORT_ALERT) {
syslog(LOG_AUTHPRIV | log_levels[level], format, args);
/* va_list can only be used once */
va_end(args);
va_start(args, format);
}
if (getuid() == 0) /* being run by root */
vfprintf(stderr, format, args);
va_end(args);
}
}
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