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upgrade.c
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upgrade.c
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#include<stdio.h>
#include<string.h>
#include<unistd.h>
#include<fcntl.h>
#include<sys/stat.h>
#include"cgic.h"
#include <stdlib.h>
#define BufferLen 1024
int cgiMain(void){
cgiFilePtr file;
int targetFile;
mode_t mode;
char name[128];
char nameForCheck[64];
char fileNameOnServer[64];
char contentType[1024];
char buffer[BufferLen];
char *tmpStr=NULL;
int size;
int got,t;
//取得html页面中file元素的值--文件在客户机上的路径名
if (cgiFormFileName("file", name, sizeof(name)) !=cgiFormSuccess) {
}
cgiFormFileSize("file", &size);
//取得文件类型
cgiFormFileContentType("file", contentType, sizeof(contentType));
//目前文件存在于系统临时文件夹中，通常为/tmp，通过该命令打开临时文件
if (cgiFormFileOpen("file", &file) != cgiFormSuccess) {
goto FAIL;
}
t=-1;
//从路径名解析出用户文件名
while(1){
tmpStr=strstr(name+t+1,"\\");
if(NULL==tmpStr)
tmpStr=strstr(name+t+1,"/");//if "\\" is not path separator, try "/"
if(NULL!=tmpStr)
t=(int)(tmpStr-name);
else
break;
}
strcpy(fileNameOnServer,name+t+1);
mode=S_IRWXU|S_IRGRP|S_IROTH;
//在当前目录下建立新的文件，第一个参数实际上是路径名，此处的含义是在cgi程序所在的目录（当前目录））建立新文件
targetFile=open(fileNameOnServer,O_RDWR|O_CREAT|O_TRUNC|O_APPEND,mode);
if(targetFile<0){
goto FAIL;
}
//从系统临时文件中读出文件内容，并放到刚创建的目标文件中
while (cgiFormFileRead(file, buffer, BufferLen, &got) ==cgiFormSuccess){
if(got>0)
write(targetFile,buffer,got);
}
cgiFormFileClose(file);
close(targetFile);
goto END;
FAIL:
cgiHeaderLocation("../upgrade_error.html");
system("rm /tmp/*");
return 1;
END:
//升级动作
if(cgiFormString("upfile1",nameForCheck,64)==cgiFormSuccess){
system("mv /app/www/cgi-bin/rtu /app/");
system("chmod 777 /app/rtu");
}else if(cgiFormString("upfile2",nameForCheck,64)==cgiFormSuccess){
system("");//预留，以后做好安装包再说
}
//以下为网页部分
printf("Content-type: text/html\r\n\r\n");
printf("<html>");
printf("<head>");
printf(" <meta charset=\"utf-8\" content=\"text/html\">");
printf(" <title>");
printf(" ctt-2000e动环设备");
printf(" </title>");
printf("</head>");
printf("<body style=\"background:#1782dd\">");
printf("<div id=\"all\" style=\"width:500px;margin:250px auto;color:#fff;font-size:30px;text-align:center;line-height:60px;\">");
printf(" 升级成功<br>系统将在 <i id=\"time\" style=\"font-size:45px;\">5</i> 秒后重启");
printf("</div>");
printf("<script type=\"text/javascript\">");
printf(" var id_of_time=setInterval(setTime,1000);");
printf(" setTimeout(close,5000);");
printf(" function setTime(){");
printf(" var lastTime=document.getElementById(\"time\");");
printf(" var number=lastTime.innerHTML;");
printf(" number=number-1;");
printf(" lastTime.innerHTML=number;");
printf(" }");
printf(" function close(){");
printf(" clearInterval(id_of_time);");
printf(" var all=document.getElementById(\"all\");");
printf(" all.innerHTML=\"系统重启中，请稍后点此重试连接\";");
printf(" all.onclick=function(){");
printf(" window.open(\"http://\"+location.hostname+\":\"+location.port,\"_self\",\"\");");
printf(" };");
printf(" }");
printf("</script>");
printf("</body>");
printf("</html>");
system("rm /tmp/*");
system("/sbin/reboot");
return 0;
}