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setruid, setrgid — ?桼???ȥ??롼?? ID ?????ꤹ??

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Standard C Library (libc, -lc)

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<unistd.h> int setruid(uid_t ruid) int setrgid(gid_t rgid)

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setruid() ?ؿ? (setrgid()) ?ϡ????ߤΥץ??????μºݤΥ桼?? ID (???롼?? ID) ?? ???ꤷ?ޤ???

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Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

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[EPERM]

?桼?????????ѥ桼???Ǥʤ??? ???ꤵ?줿 ID ???? ID ?Ǥ??¸? ID ?Ǥ⤢???ޤ????Ǥ?????

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getgid(2), getuid(2), setegid(2), seteuid(2), setgid(2), setuid(2)

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setruid() ?? setrgid() ?????ƥॳ?????? 4.2BSD ?Ǹ??졢 4.4BSD ?????Ȥ????ޤ?????