unix: Test AF_UNIX before using it

[rzr]

Problem was observed on Tizen:RT when building IoT.js

libtuv-DCO-1.0-Signed-off-by: Philippe Coval philippe.coval@osg.samsung.com

[hs0225]

@rzr AF_UNIX is also used elsewhere. Does this PR solve everything about building IoT.js?

[rzr]

I confirm current master branch of iotjs can build on TizenRT's master using this single patch.

For the record:

• ./external/iotjs/deps/libtuv/src/unix/stream.c:330: if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))

  • if defined(APPLE)

• ./external/iotjs/deps/libtuv/src/unix/stream.c:989: * for sockets of type AF_UNIX. For all other types it will

  • commented

• ./external/iotjs/deps/libtuv/src/unix/stream.c:996:#ifdef AF_UNIX

• ./external/iotjs/deps/libtuv/src/unix/stream.c:997: case AF_UNIX:

  • Fixed here

• ./external/iotjs/deps/libtuv/src/unix/pipe.c:64: err = uv__socket(AF_UNIX, SOCK_STREAM, 0);

• ./external/iotjs/deps/libtuv/src/unix/pipe.c:72: saddr.sun_family = AF_UNIX;

• ./external/iotjs/deps/libtuv/src/unix/pipe.c:167: err = uv__socket(AF_UNIX, SOCK_STREAM, 0);

• ./external/iotjs/deps/libtuv/src/unix/pipe.c:176: saddr.sun_family = AF_UNIX;

• ./external/iotjs/deps/libtuv/src/unix/tty.c:298: * for sockets of type AF_UNIX. For all other types it will

• ./external/iotjs/deps/libtuv/src/unix/tty.c:307: if (sa.sa_family == AF_UNIX)

  • Not sure pipe or tty are supported on TizenRT... (at least not used with default configuration flags)

[hs0225]

@rzr Okay. I checked that pipe.c and tty.c are excluded from the build.