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test: allow tests to pass without internet by danbev · Pull Request #16255 · nodejs/node

@danbev 

Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread nodejs#1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread nodejs#1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame nodejs#1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame nodejs#2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame nodejs#3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame nodejs#4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame nodejs#5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame nodejs#6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame nodejs#7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

Here is the example program I used to reproduce:

int main(int argc, char *argv[]) {
  struct addrinfo hints, *info, *p;
  int res;
  memset(&hints, 0, sizeof(hints));
  hints.ai_flags = AI_NUMERICSERV;
  hints.ai_socktype = SOCK_STREAM;
  // using "0" will segfault if there is no internet connection
  if ((res = getaddrinfo("nodejs.org", "0", &hints, &info)) != 0) {
    fprintf(stderr, "Error: %s, (%d)\n", gai_strerror(res), res);
    exit(1);
  }
  fprintf(stdout, "flags %d\n", info->ai_flags);
  fprintf(stdout, "family %d\n", info->ai_family);
  fprintf(stdout, "socktype %d\n", info->ai_socktype);
  fprintf(stdout, "protocol %d\n", info->ai_protocol);
}

addaleax

@danbev 

This commit moves only the parts of test-dgram-membership.js that
require an internet connection, leaving the others in place.

danbev added a commit to danbev/node that referenced this pull request

Oct 26, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread nodejs#1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread nodejs#1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame nodejs#1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame nodejs#2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame nodejs#3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame nodejs#4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame nodejs#5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame nodejs#6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame nodejs#7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: nodejs#16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

@danbev danbev deleted the internet-tests branch

October 26, 2017 05:58

addaleax pushed a commit to ayojs/ayo that referenced this pull request

Oct 26, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame #1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame #2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame #3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame #4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame #5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame #6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame #7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: nodejs/node#16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

gibfahn pushed a commit that referenced this pull request

Oct 30, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame #1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame #2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame #3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame #4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame #5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame #6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame #7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: #16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

gibfahn pushed a commit that referenced this pull request

Oct 30, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame #1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame #2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame #3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame #4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame #5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame #6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame #7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: #16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

gibfahn pushed a commit that referenced this pull request

Oct 31, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame #1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame #2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame #3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame #4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame #5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame #6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame #7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: #16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

danbev added a commit to danbev/node that referenced this pull request

Nov 21, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures

This commit moves the two JavaScript tests to test/internet.

PR-URL: nodejs#16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

MylesBorins pushed a commit that referenced this pull request

Nov 26, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures

This commit moves the two JavaScript tests to test/internet.

Backport-PR-URL: #17171
PR-URL: #16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

MylesBorins pushed a commit that referenced this pull request

Nov 28, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures

This commit moves the two JavaScript tests to test/internet.

Backport-PR-URL: #17171
PR-URL: #16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

addaleax pushed a commit to ayojs/ayo that referenced this pull request

Dec 7, 2017 
Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0x38(%rbp)
    0x7fff96d0438f <+98>: movq   0x18(%rbp), %rcx

(lldb) bt
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
  * frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
    frame #1: 0x00007fff96cfe98b libsystem_info.dylib`search_addrinfo +
179
    frame #2: 0x00007fff96cfafef libsystem_info.dylib`si_addrinfo + 2255
    frame #3: 0x00007fff96cfa67b libsystem_info.dylib`getaddrinfo + 179
    frame #4: 0x00000001017d8888
cctest`uv__getaddrinfo_work(w=0x00007fff5fbfe210) + 72 at
getaddrinfo.c:102
    frame #5: 0x00000001017d880e
cctest`uv_getaddrinfo(loop=0x000000010287cb80, req=0x00007fff5fbfe1c8,
cb=0x0000000000000000, hostname="nodejs.org", service="0",
hints=0x00007fff5fbfe268) + 734 at getaddrinfo.c:192
    frame #6: 0x000000010171f781
cctest`node::inspector::InspectorSocketServer::Start(this=0x00007fff5fbfe658)
+ 801 at inspector_socket_server.cc:398
    frame #7: 0x00000001016ed590
cctest`InspectorSocketServerTest_FailsToBindToNodejsHost_Test::TestBody(this=0x0000000105001fd0)
+ 288 at test_inspector_socket_server.cc:593

I'm not sure about the exact cause for this but when using a standalone
c program to simulate this it seems like when the ai_flags
`AI_NUMERICSERV` is set, which is done in inspector_socket_server.cc
line 394, the servname (the port in the FailsToBindToNodejsHost test) is
expected to be a numeric port string to avoid looking it up in
/etc/services. When the port is 0 as is it was before this commit the
segment fault occurs but not if it is non-zero.

PR-URL: nodejs/node#16255
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>