Getresgid

Name

getresuid, getresgid - get real, effective, and saved user / group ID

Synopsis

#include <unistd.h>

int getresuid(uid_t*, uid_t*, uid_t*);
int getresgid(gid_t*, gid_t*, gid_t*);

Description

Returns the real, effective, and saved user or group ID.

Return value

If the call was set successful, returns 0. Otherwise, returns -1 and sets errno to describe the error.

Errors

• EFAULT: One of the passed pointers is not valid, writeable pointer in the current process.

See also

• setuid_overview(7)
• geteuid(2) / getegid(2)
• getuid(2) / getgid(2)
• seteuid(2) / setegid(2)
• setuid(2) / setgid(2)
• setresuid(2) / setresgid(2)