fix nested extern warnings

Generalize the test, compare on the protocol semantics instead of the name
since it could be udp6...

Don't try to use listen(2) on a UDP socket which will always fail.
Previously this was not a problem because the return value of listen(2)
was ignored. With this fix amd(8) no longer fails to start with the
error message "cannot create rpc/udp service".

TL;DR: Make amd(8) work again

fix compilation/lint

CID 1338513: Check listen(2) return

CID 97511{4,5}: Ignore bindresvport return. It only works for root.

branches: 1.18.6;
Replace previous Sun Microsystems, Inc. license with a standard
BSD 3-clause license granted by Oracle America, Inc..
This license change was approved by Wim Coekaerts, Senior Vice President,
Linux and Virtualization at Oracle Corporation.

This fixes PR lib/45293 by Pedro Giffuni.

make this usable from RUMP

branches: 1.16.2;
Update old-style definitions to ANSI, remove a couple of register
definitions along the way. Fixed gcc 4.1 build (thank you vax)

fix old style definitions; XXX: gcc should have picked them up but it did not.

Use C89 definitions
Remove use of __P

branches: 1.13.6; 1.13.8;
Use __isthreaded from reentrant.h and don't redeclare it.

WARNS=4

__RCSID police

Merge the nathanw_sa branch.

* Adapt include files for rpc_com.h/rpc_internal.h split.
* Add rpc_control to svc.c
* Implement non-blocking connections.

branches: 1.8.2;
fix WARNS=2 (-Wshadow) warnings

branches: 1.7.2;
sprinkle _DIAGASSERT() appropriately. minor other cleanups

add __RPC_GETXID macro
don't const castway __rpc_getconf and __rpc_getconfig. It might try to
write const strings
fix non-portable casts
remove duplicated prototypes
cast things to proper types
remove extraneous casts to NULL
fix variable cast mismatches
remove register var declarations

branches: 1.5.4;
Always do a listen() in the old svctcp_create backward compat code.

Need <string.h> for LP64 systems.

Add missing weak alias for svcfd_create.

Fix typo in weak alias, causing unresolved externals.

Add new RPC code, based on Sun's TI-RPC code. Adapted to not use XTI,
but sockets instead, internally. Old, backward compatible interfaces
maintained.

Generalize the test, compare on the protocol semantics instead of the name
since it could be udp6...

Don't try to use listen(2) on a UDP socket which will always fail.
Previously this was not a problem because the return value of listen(2)
was ignored. With this fix amd(8) no longer fails to start with the
error message "cannot create rpc/udp service".

TL;DR: Make amd(8) work again

fix compilation/lint

CID 1338513: Check listen(2) return

CID 97511{4,5}: Ignore bindresvport return. It only works for root.

branches: 1.18.6;
Replace previous Sun Microsystems, Inc. license with a standard
BSD 3-clause license granted by Oracle America, Inc..
This license change was approved by Wim Coekaerts, Senior Vice President,
Linux and Virtualization at Oracle Corporation.

This fixes PR lib/45293 by Pedro Giffuni.

make this usable from RUMP

branches: 1.16.2;
Update old-style definitions to ANSI, remove a couple of register
definitions along the way. Fixed gcc 4.1 build (thank you vax)

fix old style definitions; XXX: gcc should have picked them up but it did not.

Use C89 definitions
Remove use of __P

branches: 1.13.6; 1.13.8;
Use __isthreaded from reentrant.h and don't redeclare it.

WARNS=4

__RCSID police

Merge the nathanw_sa branch.

* Adapt include files for rpc_com.h/rpc_internal.h split.
* Add rpc_control to svc.c
* Implement non-blocking connections.

branches: 1.8.2;
fix WARNS=2 (-Wshadow) warnings

branches: 1.7.2;
sprinkle _DIAGASSERT() appropriately. minor other cleanups

add __RPC_GETXID macro
don't const castway __rpc_getconf and __rpc_getconfig. It might try to
write const strings
fix non-portable casts
remove duplicated prototypes
cast things to proper types
remove extraneous casts to NULL
fix variable cast mismatches
remove register var declarations

branches: 1.5.4;
Always do a listen() in the old svctcp_create backward compat code.

Need <string.h> for LP64 systems.

Add missing weak alias for svcfd_create.

Fix typo in weak alias, causing unresolved externals.

Add new RPC code, based on Sun's TI-RPC code. Adapted to not use XTI,
but sockets instead, internally. Old, backward compatible interfaces
maintained.