Linux c 语言 setgid 和 setgroups 的区别

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setgid 的说明是 This function sets both the real and effective group ID of the process to newgid

setgroups 的说明是 This function sets the process’s supplementary group IDs.

请问区别是什么

3 replies • 2020-10-09 10:08:23 +08:00

boboliu

Oct 7, 2020

julyclyde

Oct 8, 2020

关键在于 supplementary 这个词啊

zxCoder

Oct 9, 2020

@julyclyde 应该怎么理解这个 supplementary group 呢？