seteuid(2) System Calls Manual seteuid(2)
NAME
seteuid(), setegid() - set effective user and group IDs
SYNOPSIS
DESCRIPTION
sets the effective user ID of the calling process, if euid is equal to the current real or saved user ID, or if the process has appropriate
privileges. The real user ID and saved set-user-ID remain unchanged.
sets the effective group ID of the calling process, if egid is equal to the current real or saved group ID, or if the process has appropri-
ate privileges. The real group ID, saved set-group-ID and any supplementary group IDs remain unchanged.
RETURN VALUE
Upon successful completion, and return 0; otherwise, they return -1 and set to indicate the error.
ERRORS
and fail if any of the following conditions are encountered:
euid, or egid, is not a valid user or group ID.
The process does not have appropriate privileges and
euid/egid does not match the real use/group ID or the saved set-user-ID/set-group-ID.
AUTHOR
and were developed by HP.
SEE ALSO
exec(2), getegid(2), geteuid(2), getuid(2), setregid(2), setresgid(2), setresuid(2), setreuid(2), setuid(2).
STANDARDS CONFORMANCE
seteuid(2)
