checking running kernel version for IP_PKTINFO support

Tuan Hoang (tuan@optimus.mitre.org)
Tue, 9 Mar 1999 16:39:41 -0500 (EST)


Hi,

I'm running a mix of 2.2.x and 2.0.x kernels. My program needs
to run on both of them only one really supports the IP_PKTINFO
socket option. Right now I'm just using <linux/version.h>
to figure out what there version of the kernel is. Unfortunately
this doesn't seem like a good solution since the kernel
running doesn't necessarily correspond to might might be in
/usr/src/linux. What is the best way to figure out which version
is currently running? Should I use "uname -r" or is there something
better?

Sorry if this is the wrong place for this but it does involve the
IP_PKTINFO socket option. ;)

Thanks,
Tuan

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