目錄
最近,再利用樹莓派實現4Gppp撥號時,自己在寫參數解析的函數時發現有太多的參數需要輸入,如串列埠的波特率、裝置名、奇偶校驗、停止位等等......如果所有參數都需要我們一一輸入然後在一一解析實在是太麻煩了,百度發現可以使用inipaeser庫來解析出我們寫入組態檔的所有資訊,進而解決了這個棘手的問題。
1.編譯生成動態鏈接庫
a.先解壓
tar -zxvf iniparser-3.1.tar.gz
cd tar -zxvf iniparser
b.編譯
make
拷貝src下的標頭檔案dictionary.h和iniparser.h以及壓縮包目錄下的靜態庫libiniparser.a和動態庫libiniparser.so.1到目標檔案系統的對應目錄下。
2.直接編譯原始碼使用
複製src下的dictionary.h,iniparser.h,dictionary.h和iniparser.h到專案目錄,將檔案加入到專案Makefile編譯目標裡。
;其中';'表示註釋,第一[xxx],其中xxx爲該設定文件的第一部分,第二個[xxx],爲其第二部分,一次類推。
[section0] ;第一部分
name0=val0 ;定義第一個變數name0,其值爲val0,不管是什麼型別的值,都使用‘=’給其賦值
name1=val1
[section1] ;第二部分
name0=value0
name1=value1
;建立第一部分,與串列埠相關的設定
[comport]
device_name = /dev/ttyUSB2
nspeed = 115200
nstop = 1
nbits = 8
nevent = N
;建立第一部分,與ppp撥號相關的設定
[ppp]
ping_ipaddr = 4.2.2.2
;建立第一部分,與mosquitto相關的設定
[mosquitto]
host = a1qhZLMC
password = 6B16C7526688A90274603
client_id = 666888|securemode=3|
port = 1883
sub_topic = /sys/a1qhZLMCMvl
dev_name = /dev/ttyUSB3
user_name = Switch
keepalive = 60
int iniparser_getnsec(dictionary * d); //獲取dictionary物件的section個數
char * iniparser_getsecname(dictionary * d, int n); //獲取dictionary物件的第n個section的名字
void iniparser_dump_ini(dictionary * d, FILE * f); //儲存dictionary物件到file
void iniparser_dumpsection_ini(dictionary * d, char * s, FILE * f); //儲存dictionary物件一個section到file
void iniparser_dump(dictionary * d, FILE * f); //儲存dictionary物件到file
int iniparser_getsecnkeys(dictionary * d, char * s); //獲取dictionary物件某個section下的key個數
char ** iniparser_getseckeys(dictionary * d, char * s); //獲取dictionary物件某個section下所有的key
char * iniparser_getstring(dictionary * d, const char * key, char * def); //返回dictionary物件的section:key對應的字串值
int iniparser_getint(dictionary * d, const char * key, int notfound); //返回idictionary物件的section:key對應的整形值
double iniparser_getdouble(dictionary * d, const char * key, double notfound); //返回dictionary物件的section:key對應的雙浮點值
int iniparser_getboolean(dictionary * d, const char * key, int notfound); //返回dictionary物件的section:key對應的布爾值
int iniparser_set(dictionary * ini, const char * entry, const char * val); //設定dictionary物件的某個section:key的值
void iniparser_unset(dictionary * ini, const char * entry); //刪除dictionary物件中某個section:key
int iniparser_find_entry(dictionary * ini, const char * entry) ; //判斷dictionary物件中是否存在某個section:key
dictionary * iniparser_load(const char * ininame); //解析dictionary物件並返回(分配記憶體)dictionary物件
void iniparser_freedict(dictionary * d); //釋放dictionary物件(記憶體)
unsigned dictionary_hash(const char * key); //計算關鍵詞的hash值
dictionary * dictionary_new(int size); //建立dictionary物件
void dictionary_del(dictionary * vd); //刪除dictionary物件
char * dictionary_get(dictionary * d, const char * key, char * def); //獲取dictionary物件的key值
int dictionary_set(dictionary * vd, const char * key, const char * val); //設定dictionary物件的key值
void dictionary_unset(dictionary * d, const char * key); //刪除dictionary物件的key值
void dictionary_dump(dictionary * d, FILE * out); //儲存dictionary物件
[comport]
device_name = /dev/ttyUSB2
nspeed = 115200
nstop = 1
nbits = 8
nevent = N
[ppp]
ping_ipaddr = 4.2.2.2
[mosquitto]
host = a1qhZLMCMvl.iot-as-mqtt.cn-shanghai.aliyuncs.com
password = 6B16C7526688A902746032C03374C6B80998B7D5
client_id = 666888|securemode=3,signmethod=hmacsha1|
port = 1883
sub_topic = /sys/a1qhZLMCMvl/Switch/thing/event/property/post
dev_name = /dev/ttyUSB3
user_name = Switch&a1qhZLMCMvl
keepalive =
/*********************************************************************************
* Copyright: (C) 2020 ysn
* All rights reserved.
*
* Filename: tets.c
* Description: This file
*
* Version: 1.0.0(11/08/20)
* Author: tianjincheng <[email protected]>
* ChangeLog: 1, Release initial version on "11/08/20 07:38:08"
*
********************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "iniparser.h"
#include "dictionary.h"
#define INI_PATH "init_param.conf"
int iniparser_save(dictionary * d, const char *inipath);
int main(void)
{
dictionary *ini;
ini = iniparser_load(INI_PATH);//parser the file
printf("%s:\n",iniparser_getsecname(ini,0));//get section name
int n = iniparser_getint(ini,"comport:nSpeed",-1);
printf("speed : %d\n",n);
const char *str = iniparser_getstring(ini,"comport:device_name","null");
printf("device_name : %s\n",str);
printf("\n%s:\n",iniparser_getsecname(ini,1));
const char *ip = iniparser_getstring(ini,"ppp:ping_ipaddr","null");
printf("ping_ipaddr : %s\n",ip);
printf("\n%s:\n",iniparser_getsecname(ini,2));
iniparser_set(ini, "mosquitto:keepalive", "60");
iniparser_save(ini, INI_PATH);
iniparser_freedict(ini);//free dirctionary object
return 0;
}
int iniparser_save(dictionary * d, const char *inipath) //自己實現的ini設定文件儲存函數
{
int ret = 0;
FILE *fp = NULL;
if (inipath == NULL || d == NULL) {
ret = -1;
printf("saveConfig error:%d from (filepath == NULL || head == NULL)\n",ret);
return ret;
}
fp = fopen(inipath,"w");
if (fp == NULL) {
ret = -2;
printf("saveConfig:open file error:%d from %s\n",ret,inipath);
return ret;
}
iniparser_dump_ini(d,fp);
fclose(fp);
return 0;
}