seteuid

seteuid

Specify Effective User ID

Portability: POSIX.1 conforming

#include <sys/types.h>
#include <unistd.h>

int seteuid(uid_t userID);

seteuid changes the effective user ID of the current process to the ID specified by userID .

Note: This function can only be called by a superuser. [cautionend]

seteuid returns a 0 if successful and a -1 if not successful.

The seteuid function is defined by the POSIX.1a standard.