public inbox for cygwin-cvs@sourceware.org help / color / mirror / Atom feed
From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: fhandler_netdrive: improve debug output Date: Mon, 22 Nov 2021 11:52:13 +0000 (GMT) [thread overview] Message-ID: <20211122115213.916B0385803B@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=f03222f242c5d1b94156ea91639c18de9197152a commit f03222f242c5d1b94156ea91639c18de9197152a Author: Corinna Vinschen <corinna@vinschen.de> Date: Fri Nov 19 12:19:31 2021 +0100 Cygwin: fhandler_netdrive: improve debug output Add debug output for errors when calling WNet functions. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Diff: --- winsup/cygwin/autoload.cc | 1 + winsup/cygwin/fhandler_netdrive.cc | 41 ++++++++++++++++++++++++++++++++++---- 2 files changed, 38 insertions(+), 4 deletions(-) diff --git a/winsup/cygwin/autoload.cc b/winsup/cygwin/autoload.cc index e25439725..2b862b5e6 100644 --- a/winsup/cygwin/autoload.cc +++ b/winsup/cygwin/autoload.cc @@ -630,6 +630,7 @@ LoadDLLfunc (LdapMapErrorToWin32, 0, wldap32) LoadDLLfunc (WNetCloseEnum, 4, mpr) LoadDLLfunc (WNetEnumResourceW, 16, mpr) +LoadDLLfunc (WNetGetLastErrorW, 20, mpr) LoadDLLfunc (WNetGetProviderNameW, 12, mpr) LoadDLLfunc (WNetGetResourceInformationW, 16, mpr) LoadDLLfunc (WNetOpenEnumW, 20, mpr) diff --git a/winsup/cygwin/fhandler_netdrive.cc b/winsup/cygwin/fhandler_netdrive.cc index b924b1876..636535635 100644 --- a/winsup/cygwin/fhandler_netdrive.cc +++ b/winsup/cygwin/fhandler_netdrive.cc @@ -42,6 +42,27 @@ struct net_hdls HANDLE dom; }; +static void +wnet_dbg_out (const char *func, DWORD ndi_ret) +{ + DWORD gle_ret; + DWORD error; + WCHAR errorbuf[MAX_PATH]; + WCHAR namebuf[MAX_PATH]; + + if (ndi_ret != ERROR_EXTENDED_ERROR) + { + debug_printf ("%s failed: %u", func, ndi_ret); + return; + } + gle_ret = WNetGetLastErrorW (&error, errorbuf, MAX_PATH, namebuf, MAX_PATH); + if (gle_ret == NO_ERROR) + debug_printf ("%s failed: %u --> %u from '%W': '%W'", + func, ndi_ret, error, namebuf, errorbuf); + else + debug_printf ("WNetGetLastError failed: %u", gle_ret); +} + static DWORD WINAPI thread_netdrive (void *arg) { @@ -61,7 +82,10 @@ thread_netdrive (void *arg) ndi->ret = WNetGetProviderNameW (WNNC_NET_LANMAN, provider, (size = 256, &size)); if (ndi->ret != NO_ERROR) - break; + { + wnet_dbg_out ("WNetGetProviderNameW", ndi->ret); + break; + } memset (nro, 0, sizeof *nro); nro->dwScope = RESOURCE_GLOBALNET; nro->dwType = RESOURCETYPE_ANY; @@ -72,7 +96,10 @@ thread_netdrive (void *arg) ndi->ret = WNetOpenEnumW (RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_ALL, nro, &nh->net); if (ndi->ret != NO_ERROR) - break; + { + wnet_dbg_out ("WNetOpenEnumW", ndi->ret); + break; + } while ((ndi->ret = WNetEnumResourceW (nh->net, (cnt = 1, &cnt), nro, (size = NT_MAX_PATH, &size))) == NO_ERROR) @@ -89,13 +116,19 @@ thread_netdrive (void *arg) ndi->ret = WNetGetProviderNameW (WNNC_NET_LANMAN, provider, (size = 256, &size)); if (ndi->ret != NO_ERROR) - break; + { + wnet_dbg_out ("WNetGetProviderNameW", ndi->ret); + break; + } ((LPNETRESOURCEW) ndi->in)->lpProvider = provider; ndi->ret = WNetGetResourceInformationW ((LPNETRESOURCEW) ndi->in, nro, (size = NT_MAX_PATH, &size), &dummy); if (ndi->ret != NO_ERROR) - break; + { + wnet_dbg_out ("WNetGetResourceInformationW", ndi->ret); + break; + } ndi->ret = WNetOpenEnumW (RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_ALL, nro, &nh->dom); break;
reply other threads:[~2021-11-22 11:52 UTC|newest] Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20211122115213.916B0385803B@sourceware.org \ --to=corinna@sourceware.org \ --cc=cygwin-cvs@sourceware.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).