用C读取INI配置文件 （可在linux平台上用）
/*c语言实现，可在linux平台上用了，在Windows下可以用GetPrivateProfileString或GetPrivateProfileInt方便读取.ini配置文件内容，但是在Linux平台上就一筹莫展了。为了解决该问题，打算用C来读取.ini，即可不受平台的限制了*/#define CONF_FILE_PATH"Config.ini"#include <string.h>#ifdef WIN32#include <Windows.h>#include <stdio.h>#else#define MAX_PATH 260#include <unistd.h>#include <fcntl.h>#include <stdio.h>#include <stdlib.h>#include <stdarg.h>#endifchar g_szConfigPath[MAX_PATH];//获取当前程序目录int GetCurrentPath(char buf[],char *pFileName){#ifdef WIN32GetModuleFileName(NULL,buf,MAX_PATH); #elsechar pidfile[64];int bytes;int fd;sprintf(pidfile, "/proc/%d/cmdline", getpid());fd = open(pidfile, O_RDONLY, 0);bytes = read(fd, buf, 256);close(fd);buf[MAX_PATH] = '\0';#endifchar * p = &buf[strlen(buf)];do {*p = '\0';p--;#ifdef WIN32} while( '\\' != *p );#else} while( '/' != *p );#endifp++;//配置文件目录memcpy(p,pFileName,strlen(pFileName));return 0;}//从INI文件读取字符串类型数据char *GetIniKeyString(char *title,char *key,char *filename) { FILE *fp; char szLine[1024];static char tmpstr[1024];int rtnval;int i = 0; int flag = 0; char *tmp;if((fp = fopen(filename, "r")) == NULL) { printf("have no such file \n");return ""; }while(!feof(fp)) { rtnval = fgetc(fp); if(rtnval == EOF) { break; } else { szLine[i++] = rtnval; } if(rtnval == '\n') { #ifndef WIN32i--;#endifszLine[--i] = '\0';i = 0; tmp = strchr(szLine, '='); if(( tmp != NULL )&&(flag == 1)) { if(strstr(szLine,key)!=NULL) { //注释行if ('#' == szLine[0]){}else if ( '/' == szLine[0] && '/' == szLine[1] ){}else{//找打key对应变量strcpy(tmpstr,tmp+1); fclose(fp);return tmpstr; }} }else { strcpy(tmpstr,"["); strcat(tmpstr,title); strcat(tmpstr,"]");if( strncmp(tmpstr,szLine,strlen(tmpstr)) == 0 ) {//找到titleflag = 1; }}}}fclose(fp); return ""; }//从INI文件读取整类型数据int GetIniKeyInt(char *title,char *key,char *filename){return atoi(GetIniKeyString(title,key,filename));}int main(int argc, char* argv[]){char buf[MAX_PATH];memset(buf,0,sizeof(buf));GetCurrentPath(buf,CONF_FILE_PATH);strcpy(g_szConfigPath,buf);int iCatAge;char szCatName[32];iCatAge = GetIniKeyInt("CAT","age",g_szConfigPath);char *a = GetIniKeyString("CAT","name",g_szConfigPath);printf("%d\r\n",iCatAge);printf("%s\r\n",a);return 0;}