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Server: use uv_getaddrinfo() for $NVIM_LISTEN_ADDRESS

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This change implicitly adds IPv6 support.

If the address contains ":", we try to use a TCP socket instead of a Unix domain
socket. Everything in front of the last occurrence of ":" is the hostname and
everything after it the port.

If the hostname lookup fails, we fall back to using a Unix domain socket.

If the port is empty ("localhost:"), a random port will be assigned.

Examples:

  NVIM_LISTEN_ADDRESS=localhost:12345 -> TCP (IPv4 or IPv6), port: 12345
  NVIM_LISTEN_ADDRESS=localhost:      -> TCP (IPv4 or IPv6), port: random (> 1024)
  NVIM_LISTEN_ADDRESS=localhost:0     -> TCP (IPv4 or IPv6), port: random (> 1024)
  NVIM_LISTEN_ADDRESS=localhost       -> Unix domain socket "localhost" in current dir
This commit is contained in:
Marco Hinz
2017-05-04 17:59:51 +02:00
parent 9cc10c69f2
commit 3efc82cbb2
4 changed files with 81 additions and 65 deletions
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3
src/nvim/eval.c
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@@ -14310,7 +14310,8 @@ static void f_serverstart(typval_T *argvars, typval_T *rettv, FunPtr fptr)
int result = server_start((char *) rettv->vval.v_string);
if (result != 0) {
EMSG2("Failed to start server: %s", uv_strerror(result));
EMSG2("Failed to start server: %s",
result > 0 ? "Unknonwn system error" : uv_strerror(result));
}
}