RFR JDK-8005120

[John Zavgren]

Greetings:
Please consider the following change to the two files:
src/share/transport/socket/sysSocket.h
src/solaris/transport/socket/socket_md.c
that eliminate compiler warnings that stem from the fact that the variables that the native code passes to various system calls were not declared correctly. They were declared as integers, but they must be "unsigned" integers because they are used to define buffer lengths. Were one to supply a negative value as an argument, it would be cast into an unsigned "Martian" value and there'd be (hopefully) a system call error.

Thanks!
John Zavgren

http://cr.openjdk.java.net/~mullan/webrevs/jzavgren/8005120/