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getresgid(2)
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!!NAME getresgid - get real, effective and saved group ID !!SYNOPSIS __#include <unistd.h>__ __int getresgid(gid_t *__''rgid''__, gid_t *__''egid''__, gid_t *__''sgid''__);__ !!DESCRIPTION getresgid(2) (both introduced in Linux 2.1.44) get the [RealID], [EffectiveID] and [SavedID]'s of the current process. !!RETURN VALUE On success, zero is returned. On error, -1 is returned, and ''errno'' is set appropriately. !!ERRORS ;[EFAULT]: One of the arguments specified an address outside the calling program's address space. !!CONFORMING TO This call is Linux-specific. !!SEE ALSO getuid(2), setuid(2), getreuid(2), setreuid(2), setresuid(2)
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