/*********************************************************************************
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* Copyright: (C) 2012 Guo Wenxue <guowenxue@gmail.com>
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* All rights reserved.
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*
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* Filename: conf.c
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* Description: This is the .ini configure file parser example code.
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*
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* Notice: Default configure file: etc/example.conf
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* Default logger file : /tmp/test.log
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*
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* Version: 1.0.0(08/08/2012~)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "08/08/2012 06:51:40 PM"
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*
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********************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <libgen.h>
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#include <string.h>
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#include <errno.h>
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#include "iniparser.h"
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#include "logger.h"
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typedef struct log_conf_s
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{
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char file[128]; /* logger file */
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int level; /* logger level */
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int size; /* logger file maxsize, oversize will rollback */
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} log_conf_t;
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typedef struct sock_conf_s
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{
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char host[128]; /* socker server host name */
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int port; /* socket server listen port */
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} sock_conf_t;
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typedef struct conf_ctx_s
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{
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log_conf_t logger;
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sock_conf_t sock;
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} conf_ctx_t;
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static void program_usage(char *progname)
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{
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printf("Usage: %s [OPTION]...\n", progname);
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printf(" %s is an .ini parser example program.\n", progname);
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printf("\nMandatory arguments to long options are mandatory for short options too:\n");
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printf(" -c[conf ] Specify configure file\n");
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printf(" -d[debug ] Running in debug mode\n");
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printf(" -h[help ] Display this help information\n");
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printf("\n%s version v1.0.0\n", progname);
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return;
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}
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int parser_conf(const char *conf_file, conf_ctx_t *conf, int debug);
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int main (int argc, char **argv)
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{
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char *conf_file="etc/example.conf";
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char *progname=NULL;
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int debug = 0;
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int opt;
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conf_ctx_t conf;
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struct option long_options[] = {
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{"conf", required_argument, NULL, 'c'},
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{"debug", no_argument, NULL, 'd'},
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0}
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};
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progname = (char *)basename(argv[0]);
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/* parser the command line parameters */
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while ((opt = getopt_long(argc, argv, "c:dh", long_options, NULL)) != -1)
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{
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switch (opt)
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{
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case 'c': /* change default configure file */
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conf_file = optarg;
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break;
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case 'd': /* set debug running */
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debug = 1;
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break;
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case 'h': /* print help information */
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program_usage(progname);
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return 0;
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default:
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break;
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}
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}
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if( !conf_file )
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return 1;
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if( parser_conf(conf_file, &conf, debug) < 0 )
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{
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fprintf(stderr, "Parser configure file '%s' failure\n", conf_file);
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return 2;
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}
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log_warn("Parser configure file '%s' successfully\n", conf_file);
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cleanup:
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log_close();
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return 0;
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}
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int parser_conf(const char *conf_file, conf_ctx_t *conf, int debug)
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{
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dictionary *ini;
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const char *str;
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int val;
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int rv = 0;
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log_conf_t *logger;
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sock_conf_t *sock;
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if( !conf_file || !conf )
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{
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fprintf(stderr, "%s() Invalid input arguments\n", __func__);
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return -1;
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}
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memset(conf, 0, sizeof(*conf));
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logger = &conf->logger;
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sock = &conf->sock;
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ini = iniparser_load(conf_file);
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if( !ini )
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{
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fprintf(stderr, "ERROR: Configure file '%s' load failed\n", conf_file);
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return -2;
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}
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/*+------------------------------------------------------+
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*| parser logger settings and start logger system |
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*+------------------------------------------------------+*/
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if( !debug )
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{
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str = iniparser_getstring(ini, "logger:file", "iotd.log");
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strncpy(logger->file, str, sizeof(logger->file));
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logger->size = iniparser_getint(ini, "logger:size", 1024);
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logger->level = iniparser_getint(ini, "logger:level", LOG_LEVEL_INFO);
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}
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else
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{
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strncpy(logger->file, "console", sizeof(logger->file));
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logger->level = LOG_LEVEL_DEBUG;
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logger->size = 0;
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}
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if( log_open(logger->file, logger->level, logger->size, LOG_LOCK_DISABLE) < 0 )
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{
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fprintf(stderr, "Logger system initialise failure\n");
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rv = -3;
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goto cleanup;
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}
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/*+------------------------------------------------------+
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*| parser socket server settings |
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*+------------------------------------------------------+*/
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if( !(str=iniparser_getstring(ini, "server:hostname", NULL)) )
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{
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log_error("ERROR: Parser socket server hostname failure\n");
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rv = -4;
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goto cleanup;
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}
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strncpy(sock->host, str, sizeof(sock->host) );
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if( (val=iniparser_getint(ini, "server:port", -1)) < 0 )
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{
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log_error("ERROR: Parser socket server port failure\n");
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rv = -5;
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goto cleanup;
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}
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sock->port = val;
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log_info("Parser socket server [%s:%d]\n", sock->host, sock->port);
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cleanup:
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if( ini )
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iniparser_freedict(ini);
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if( rv )
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log_close();
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return rv;
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}
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