para_operate.c

#include "para_operate.h"

static struct parseconf_bool_setting
{
	const char *p_setting_name;
	int *p_variable;
}parseconf_bool_array[] = 
{
	{"pasv_enable", &tunable_pasv_enable},
	{"port_enable", &tunable_port_enable},
	{NULL ,NULL}
};

static struct parseconf_uint_setting
{
	const char *p_setting_name;
	unsigned int *p_variable;
}parseconf_uint_array[] = 
{
	{"listen_port", &tunable_listen_port},
	{"max_clients", &tunable_max_clients},
	{"max_per_ip", &tunable_max_per_ip},
	{"accept_timeout", &tunable_accept_timeout},
	{"connect_timeout", &tunable_connect_timeout},
	{"idle_session_timeout", &tunable_idle_session_timeout},
	{"data_connection_timeout", &tunable_data_connection_timeout},
	{"local_umask", &tunable_local_umask},
	{"upload_max_rate", &tunable_upload_max_rate},
	{"download_max_rate", &tunable_download_max_rate},
	{NULL, NULL}
};

static struct parseconf_str_setting
{
	const char *p_setting_name;
	const char **p_variable;
}parseconf_str_array[] = 
{
	{"listen_address", &tunable_listen_address},
	{NULL, NULL}
};

//load file
void parseconf_load_file(const char *path)
{
	FILE *fp = fopen(path, "r");
	if(fp == NULL)
		ERR_EXIT("fopen");

	char setting_line[1024] = {0};
	while(fgets(setting_line, sizeof(setting_line), fp) != NULL)
	{
		if(strlen(setting_line) == 0 || setting_line[0] == '#' || str_all_space(setting_line))
			continue;

		str_trim_crlf(setting_line);
		parseconf_load_setting(setting_line);
		memset(setting_line, 0, sizeof(setting_line));
	}

	fclose(fp);
}

//load setting of file
void parseconf_load_setting(const char *setting)
{
	while(isspace(*setting))
		setting++;

	char key[128] = {0};
	char value[128] = {0};
	str_split(setting, key, value, '=');
	if(strlen(value) == 0)
	{
		fprintf(stderr, "missing value in config file for: %s\n", key);
		exit(EXIT_FAILURE);
	}

	{
		const struct parseconf_str_setting *p_str_setting = parseconf_str_array;
		while(p_str_setting->p_setting_name != NULL)
		{
			
			if(strcmp(key, p_str_setting->p_setting_name) == 0)
			{
				const char **p_cur_setting = p_str_setting->p_variable;
				if(*p_cur_setting)
					free((char*)*p_cur_setting);

				*p_cur_setting = strdup(value);

				return;
			}
			p_str_setting++;
		}
	}

	{
	    const struct parseconf_bool_setting *p_bool_setting = parseconf_bool_array;
		while(p_bool_setting->p_setting_name != NULL)
		{
			if(strcmp(key, p_bool_setting->p_setting_name) == 0)
			{
				str_upper(value);
				if(strcmp(value, "YES") == 0
					|| strcmp(value, "TRUE") == 0
					|| strcmp(value, "1") == 0)
					*(p_bool_setting->p_variable) = 1;
				else if(strcmp(value, "NO") == 0
					|| strcmp(value, "FALSE") == 0
					|| strcmp(value, "0") == 0)
					*(p_bool_setting->p_variable) = 0;
				else
				{
					fprintf(stderr, "bad bool value in config file for: %s\n", key);
					exit(EXIT_FAILURE);
				}

				return;
			}
			p_bool_setting++;
		}
	}

	{
		const struct parseconf_uint_setting *p_uint_setting = parseconf_uint_array;
		while(p_uint_setting->p_setting_name != NULL)
		{
			if(strcmp(key, p_uint_setting->p_setting_name) == 0)
			{
				if(value[0] == '0')
					*(p_uint_setting->p_variable) = str_octal_to_uint(value);
				else
					*(p_uint_setting->p_variable) = atoi(value);

				return;
			}
			p_uint_setting++;
		}
	}
}