setuid and setgid are async-signal-safe?

[Mike Frysinger]

On Tuesday 30 October 2012 01:59:13 jiji vinitha wrote:
> I have referred  the setgid/setuid implementation in glibc-2.15 .
>  However,I could not understand the algorithm is truly async-signal safe or
> not. Is glibc-2.15's setgid/setuid implementation async-signal safe?

all it does is make a syscall to the kernel.  why do you think it isn't safe ?
-mike
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