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Solaris下究竟如何使用setuid/seteuid/setreuid
seteuid()只设置EUID。如果当前EUID为0,形参euid任意指定。否则 形参euid应该是RUID、EUID、SUID之一。无论如何,最终只影响当前 EUID。 setegid()只设置EGID。如果当前EUID为0,形参egid任意指定。否则 形参egid应该是RGID、EGID、SGID之一。无论如何,最终只影响当前 EGID。
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