Hi, Paul Stoeber wrote: > Should a userland program be allowed to depend on errno==0 on entry > to main()? (At least one in the tree does.) > > I see no place in the C library that explicitly ensures this, and > it might be false if the user runs the program under LD_PRELOAD > tricks. > I think the .bss is guaranteed to be zero filled upon startup. At least in OpenBSD. But, of course, any library can screw up errno, if preloaded with $LD_PRELOAD or just linked in.
-- Pawel. [demime 1.01d removed an attachment of type application/gzip which had a name of errno_test.tar.gz]
