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/***************************************************
* º¯Êý˵Ã÷: Åжϵ±Ç°path²ÎÊýÊÇ·ñΪһ¸ö¿É¶ÁµÄÎļþ
* º¯Êý·µ»Ø: 0 - Îļþ¿Ì¶È 1 - ȨÏ޾ܾø -1 -º¯Êý´íÎó
* ²Î Êý : path Îļþ·¾¶.
***************************************************/
int isReadFile(const char *path)
{
struct stat info;
int euid,egid;
if ( 0!= stat(path,&info) )
{
return -1;
}
//if it is a file
if( S_IFREG != (info.st_mode & S_IFMT ) )
{
return 1;
}
euid=geteuid();//returns the real user ID of the
current process
egid=getegid();//returns the effective user ID of the
current process
//if effective user is root
if(euid==0)
{
if(info.st_mode & S_IRUSR || info.st_mode &
S_IRGRP ||info.st_mode & S_IROTH)
{
return 0;
}
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