23,115
社区成员
发帖
与我相关
我的任务
分享文件无法打开，是配置问题么？
用c写个简单的cgi程序
里面有一句：FILE * f;
f=fopen("../data/data.txt","a");
if(f==NULL)
printf("error");
else
.........
我编译如过 gcc -o test test.c 然后 ./test 可以正常打开
但是如果编译为cgi程序，用brower打开，就会显示 error，显然 f为NULL
这是什么原因呢？
里面有一句：FILE * f;
f=fopen("../data/data.txt","a");
if(f==NULL)
printf("error");
else
.........
我编译如过 gcc -o test test.c 然后 ./test 可以正常打开
但是如果编译为cgi程序，用brower打开，就会显示 error，显然 f为NULL
这是什么原因呢？
...全文
请发表友善的回复…
发表回复
base64 2003-09-15
- 打赏
- 举报
For the codes, they are okay. The problem is that I didn't chmod the ~/public_html/cgi-bin 's privilige before I want to run the cgi script on an explorer. The vision is that when you excute it on the server, you may be the root user, but when you run the script through an explorer, you are a non-root user, so maybe you don't have the right to change anything inside the cgi-bin directory. And for my code, I want to use the function: fopen(), that's a kind of function depending on the user's privlige. So after doing "chmod a+w cgi-bin" action, I can run the script through an explorer. But the most disadvantage is that this kind of setting has much potential and monster danger. For that some hacker may damage your system by some dangerous cgi-script because of the high privilge you gave them. Have fun....
