This also removes the now old recvfrom and sendto syscalls. These are
now implemented as wrappers around recvmsg and sendmsg.
Also replace unnecessary spinlocks from unix socket with mutexes
some ports want to link against these, but they are not ever called
based on simple testing
This patch adds stubs for
- openlog
- syslog
- getrusage
- mlock
- mprotect
- getpeername
- shutdown
- tzset
- mktime
