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config.c
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config.c
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/*
* Configuration handling
*
* File: config.c
* Author: Andreas Behringer
*
* (c)2012 Andreas Behringer
* Copyright: GPL see included LICENSE file
*
* Created on January 10, 2013, 12:33 AM
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <getopt.h>
#include <string.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
/**
* Print version string to screen
*/
void print_version(void) {
fprintf(stdout, "YAUL version %s - Yet another UDP logger\n", VERSION);
}
/**
* Print usage information to screen
*/
void print_usage(void) {
print_version();
fprintf(stdout, "Usage: yaul [options]\n\
-h, -?, --help display this help information\n\
-d, --daemonize daemonize server process\n\
-p, --port=PORT bind to port number (default %u)\n\
-b, --bind=IP bind to ip address (default %s)\n\
-l, --logpath=PATH logging to path (default %s)\n\
-s, --statistics=FREQUENCY log statistics to file yaul.stat after every [frequency] logmessage\n\
-f, --flush=FREQUENCY flush output stream after every [frequency] logmessage\n\
-r, --redis-ip=IP connect to redis server at IP and implicit enable logging to redis (default %s)\n\
-o, --redis-port=PORT connect to redis server at PORT and implicit enable logging to redis (default %u)\n\
-t, --redis-ttl=TTL the TTL in seconds of the dayly lists in redis, starting on last log message added, 0 = persist\n\
-m, --max-handles=NUM maximum number of opened files (default %u)\n\
-v, --version display version information\n", PORT, ADDRESS, LOGPATH, config.redis_ip, config.redis_port, MAXHANDLES);
}
/**
* Init configuration with default values
*/
void setDefaultOptions(void) {
config.address = ADDRESS;
config.logpath = LOGPATH;
config.maxhandles = MAXHANDLES;
config.opt_daemonize = 0;
config.opt_flush = FLUSH;
config.opt_redis = 0;
config.opt_statistics = 0;
config.port = PORT;
config.redis_ip = "127.0.0.1";
config.redis_port = 6379;
config.redis_ttl = 0;
}
/**
* Read options from command line
* @param argc
* @param argv
*/
void readOptions(int argc, char** argv) {
int opt;
int opt_index;
setDefaultOptions();
static struct option long_options[] = {
{"bind", required_argument, 0, 'b'},
{"port", required_argument, 0, 'p'},
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"logpath", required_argument, 0, 'l'},
{"statistics", required_argument, 0, 's'},
{"flush", required_argument, 0, 'f'},
{"daemonize", no_argument, 0, 'd'},
{"redis-ip", required_argument, 0, 'r'},
{"redis-port", required_argument, 0, 'o'},
{"redis-ttl", required_argument, 0, 't'},
{"max-handles", required_argument, 0, 'm'},
{0, 0, 0, 0}
};
// Parse options
while ((opt = getopt_long(
argc,
(char ** const)argv,
"b:dh?p:l:vs:f:r:o:t:m:",
long_options,
&opt_index)) != EOF) {
switch (opt) {
case 'b':
config.address = optarg;
break;
case 'p':
config.port = atoi(optarg);
break;
case 'v':
print_version();
exit (EXIT_SUCCESS);
break;
case '?':
case 'h':
print_usage();
exit (EXIT_SUCCESS);
break;
case 'l':
strcpy(config.logpath, optarg);
break;
case 's':
config.opt_statistics = atoi(optarg);
break;
case 'f':
config.opt_flush = atoi(optarg);
break;
case 'd':
config.opt_daemonize = 1;
break;
case 'r':
config.redis_ip = optarg;
config.opt_redis = 1;
break;
case 'o':
config.redis_port = atoi(optarg);
config.opt_redis = 1;
break;
case 't':
config.redis_ttl = atoi(optarg);
config.opt_redis = 1;
break;
case 'm':
config.maxhandles = atoi(optarg);
break;
}
}
}
#ifdef __cplusplus
}
#endif