Joel Cunningham cc4d09423a Add writev function
This commit adds compatibility with POSIX writev according to the Open
Group specification:
http://pubs.opengroup.org/onlinepubs/009695399/functions/writev.html

Implementation maps to sendmsg in the same manner that write() maps to
send()
2015-09-23 15:52:28 -05:00
..
2015-09-23 15:52:28 -05:00