I'm trying to write a script for a client to reset the mysql service whenever they need to. (they're using a janky CMS/eccomerce that sometimes messes with the database in weird ways and it needs to be reset)
This issue is that shell_exec doesn't seem to be working, the var_dump statement outputs NULL and the mysql server is not reset.
The snippet of code that does the resetting looks like this
$output = shell_exec('/usr/bin/sudo /bin/restartmysql');
var_dump($output);
/bin/restartmysql is a binary wrapper for restarting the database, the source for it looks like this
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
int main(char argc, char** argv) {
setuid(0);
system("/usr/sbin/service mysql restart");
return 1;
}
I've doubled checked and shell_exec is not disabled in my php.ini, also www-data has correct permissions to execute restartmysql
here's the sudoers snippet
www-data LOCAL=NOPASSWD:/bin/restartmysql
Update:
When redirecting to stderr it showed that it was attempting to ask for a password with sudo, which was actually not needed because of the way the permissions are on the binary wrapper. However when removing sudo from the command I still receive this error.
string(106) "/usr/sbin/service: 127: /usr/sbin/service: stop: not found
/usr/sbin/service: 128: exec: start: not found
"
