98c0c5e9e6
The URLs of the form `help://man/<section>/<page>` link to another help page inside the help application. All previous relative page links are replaced by this new form. This doesn't change any behavior but it looks much nicer :^) Note that man doesn't handle these new links, but the previous relative links didn't work either.
967 B
967 B
Name
setuid, setgid - set user / group ID
Synopsis
#include <unistd.h>
int setuid(uid_t);
int setgid(gid_t);
Description
Sets all of real, effective, and saved user or group ID to the given ID.
For non-superusers, the given ID has to be equal to the current real or effective ID for the call to succeed.
Return value
If the call was set successful, returns 0.
Otherwise, returns -1 and sets errno to describe the error.
Errors
EPERM: The new ID is not equal to the real ID or effective ID, and the user is not superuser.EINVAL: The new ID is set to invalid value (-1).