SETREUID(2)SETREUID(2)NAMEsetreuid - set real and effective user ID's
SYNOPSIS
#include <unistd.h>
int setreuid (uid_t ruid, uid_t euid);
DESCRIPTION
The real and effective user ID's of the current process are set according
to the arguments. If ruid or euid is -1, the current uid is filled in by
the system. Unprivileged users may change the real user ID to the
effective user ID and vice-versa; only the super-user may make other
changes.
RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise, a value
of -1 is returned and errno is set to indicate the error.
ERRORS
[EPERM] The current process is not the super-user and a change
other than changing the effective user-id to the real
user-id was specified.
SEE ALSOgetuid(2), setregid(2), setuid(2).
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