Poul-Henning Kamp 552afd9c12 Clean up and wash struct iovec and struct uio handling.
Add copyiniov() which copies a struct iovec array in from userland into
a malloc'ed struct iovec.  Caller frees.

Change uiofromiov() to malloc the uio (caller frees) and name it
copyinuio() which is more appropriate.

Add cloneuio() which returns a malloc'ed copy.  Caller frees.

Use them throughout.
2004-07-10 15:42:16 +00:00
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