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serenity/Base/usr/share/man/man2/setresuid.md
kleines Filmröllchen 98c0c5e9e6 Help+Base: Add help://man URLs for links between man pages 
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.
2022-01-11 00:24:57 +01:00

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Name

setresuid, setresgid - set real, effective, and saved user / group ID

Synopsis

#include <unistd.h>

int setresuid(uid_t, uid_t, uid_t);
int setresgid(gid_t, gid_t, gid_t);

Description

Sets all of real, effective, and saved user or group ID to the given values.

An argument of -1 keeps the corresponding ID unchanged.

For non-superusers, each of the given values has to be equal to any of the current real, effective, or saved IDs 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: At least one of the passed IDs was not equal to the current real, effective, or saved ID, and the user is not superuser.

See also