GETRESUIDSection: Linux Programmer's Manual (2)
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NAMEgetresuid, getresgid - get real, effective and saved user or group ID
DESCRIPTIONgetresuid and getresgid (both introduced in Linux 2.1.44) get the real, effective and saved user ID's (resp. group ID's) of the current process.
RETURN VALUEOn success, zero is returned. On error, -1 is returned, and errno is set appropriately.
CONFORMING TOThis call is Linux-specific.
SEE ALSOgetuid(2), setuid(2), getreuid(2), setreuid(2), setresuid(2)
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Time: 15:16:28 GMT, July 17, 2018