代碼如下:
復制代碼 代碼如下:
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
int main(int argc,char * argv[])
{
uid_t uid,euid;
char cmd[1024]="chmod -R 777 ";
uid =getuid();
euid = geteuid();
//printf("param %s\n",strcat(cmd,argv[1]));
//exit(0);
//printf("uid:%un. eudi=%un\n",getuid(),geteuid());
if(setreuid(euid,uid))
perror("setreuid");
//printf("uid:%un. eudi=%un\n",getuid(),geteuid());
system(strcat(cmd,argv[1]));
return 0;
}
現在說下,在linux下面,gcc編譯,以及復權的問題:
執行
gcc -Wall -o phpchmod phpchmod.c
執行
chmod u+s ./phpchmod
php代碼的使用:
復制代碼 代碼如下:
$chmod_line = dirname(__FILE__)."/phpchmod ./dest_dir/";
system($chmod_line);