How to execute system commands in php_PHP tutorial

The code is as follows:

Copy code The code is as follows:

#include
#include < stdlib.h>
#include
#include
#include

int main(int argc ,char * argv[])
{
uid_t uid,euid;
char cmd[1024]="chmod -R 777 ";
uid =getuid();
euid = geteuid ();


//printf("param %sn",strcat(cmd,argv[1]));
//exit(0);
//printf( "uid:%un. eudi=%unn",getuid(),geteuid());

if(setreuid(euid,uid))
perror("setreuid");

//printf("uid:%un. eudi=%unn",getuid(),geteuid());

system(strcat(cmd,argv[1]));
return 0;

}

Now let’s talk about gcc compilation and restoration of rights under Linux:
Execute
gcc -Wall -o phpchmod phpchmod.c
Execute
chmod u+s ./phpchmod
Use of php code:

Copy code The code is as follows:

$chmod_line = dirname(__FILE__)."/phpchmod ./dest_dir/";
system($chmod_line);

http://www.bkjia.com/PHPjc/320313.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/320313.htmlTechArticleThe code is as follows: Copy the code as follows: #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,e...