Re: Call for testing Cygwin snapshot

[Bas van Gompel <cygwin dot buzz at bavag dot tmfweb dot nl>]

Op Wed, 30 Nov 2005 18:11:37 +0100 schreef Corinna Vinschen
in <20051130171137.GE2999<at>calimero.vinschen.de>:
[Test the 20051130 snapshot]

:  Please report back in this thread when you encounter a problem, which
:  you can't reproduce with 1.5.18.  We're interested in regressions in
:  the first place.

On my (w95) machine gethostbyname is failing with the snapshot.

[...]
:  Keep in mind that we can easier find problems if you attach a brief,
:  concise, selfcontained testcase, if possible in plain C, which allows
:  easy reproducing.
[...]

You'll find one in the following transcript.


Start transcript>>>
$ uname -vr
1.5.19s(0.145/4/2) 20051130 13:17:51

$ cat tghbn.c
#include <stdio.h>
#include <netdb.h>
#include <errno.h>

int
main (int argc, char **argv)
{
  if (gethostbyname ("localhost"))
    puts ("Could get host by name (localhost)");
  else
    perror ("Could NOT get host by name (localhost)");
}

$ make tghbn
gcc     tghbn.c   -o tghbn

$ ./tghbn
Could NOT get host by name (localhost): Operation not permitted

$ strace -o tghbn.strace0 -m all ./tghbn
Could get host by name (localhost)

$ strace -o tghbn.strace -m all sh -c ./tghbn
Could NOT get host by name (localhost): Operation not permitted

<<<End transcript.


The bit of the strace leading upto the error in tghbn.strace:

 2103  218163 [main] TGHBN 758909 pinfo_init: pid 758909, pgid 765225
 4853  223016 [sig] TGHBN 758909 wait_sig: myself->dwProcessId 4294282123
 -977  222039 [main] TGHBN 758909 sigproc_init: process/signal handling enabled, state 0xC1
 2918  224957 [main] tghbn 758909 dll_crt0_1: user_data->main 0x401050
 -888  224069 [sig] TGHBN 758909 wait_sig: entering ReadFile loop, readsig 0xD4, myself->sendsig 0xD8
 1767  225836 [main] tghbn 758909 __set_errno: void dll_crt0_1(char*):896 val 0
 1537  227373 [main] tghbn 758909 wait_for_sigthread: wait_sig_inited 0xC8
374106  601479 [main] tghbn 758909 wsock_init: res 0
15488  616967 [main] tghbn 758909 wsock_init: wVersion 514
 1502  618469 [main] tghbn 758909 wsock_init: wHighVersion 514
 1916  620385 [main] tghbn 758909 wsock_init: szDescription WinSock 2.0
 7935  628320 [main] tghbn 758909 wsock_init: szSystemStatus Running
10963  639283 [main] tghbn 758909 wsock_init: iMaxSockets 0
 2118  641401 [main] tghbn 758909 wsock_init: iMaxUdpDg 0
 1584  642985 [main] tghbn 758909 wsock_init: lpVendorInfo 0
1191806 1834791 [main] tghbn 758909 __set_errno: void __set_winsock_errno(const char*, int):278 val 1
  997 1835788 [main] tghbn 758909 __set_winsock_errno: __dup_ent:378 - winsock error 11001 -> errno 1
  799 1836587 [main] tghbn 758909 cygwin_gethostbyname: dup_ent returned NULL for name localhost, h 0x0


This is/was working in 1.5.18.

Attached is cygcheck -svr output. with a self built cygwin1.dll from
Mon Nov 28 16:30:21 2005, which is the last version I have, which
doesn't show the failure. CVS-checkout for that build can't have been
much more than 24 hours earlier, probably less.

If there is other info I can provide, please let me know.


L8r,

Buzz.
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