b51d7ca3ba
The ipoput4() and ipoput6() functions can raise an error(), which means before calling sndrst() or limbo() (from tcpiput()), we have to get rid of our blist by calling freeblist(bp). Makse sure to set the Block pointer to nil after freeing in ipiput() to avoid accidents. Fix wrong panic string in sndsynack, and make any sending functions like sndrst(), sndsynack() and tcpsendka() return the value of ipoput*(), so we can distinguish "no route" error. Add a Enoroute[] string constant. Both htontcp4() and htontcp6() can never return nil, as they will allocate new or resize the existing block. Remove the misleading error handling code that assumes that it can fail. Unlock proto on error in limborexmit() which can be raised from sndsynack() -> ipoput*() -> error(). Make sndsynack() pass a Routehint pointer to ipoput*() as it already did the route lookup, so we dont have todo it twice. |
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