minor bugs in pthread_setcancelstate and pthread_setcanceltype

[dirk.derycke@icos.be]

Hi all,

for the functions (thread.cc):
int __pthread_setcancelstate (int state, int *oldstate)
int __pthread_setcanceltype (int type, int *oldtype)
can somebody add the checking whether the pointers oldstate and oldtype are
nill pointers?

The Linux man page says that the previous state/type is not saved when the
pointer is zero.
Currently we get the annoying SIGSEGV crash when the old state/type is
written to address 0x0.

regards,

Dirk

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