[Bug 49656] New: SAP GUI - Ws2_32.getaddrinfo crashes with non-standard service (/etc/services)
WineHQ Bugzilla
wine-bugs at winehq.org
Tue Aug 4 23:46:40 CDT 2020
https://bugs.winehq.org/show_bug.cgi?id=49656
Bug ID: 49656
Summary: SAP GUI - Ws2_32.getaddrinfo crashes with non-standard
service (/etc/services)
Product: Wine
Version: 5.14
Hardware: x86
OS: Mac OS X
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: winsock
Assignee: wine-bugs at winehq.org
Reporter: guimaeda at gmail.com
Created attachment 67890
--> https://bugs.winehq.org/attachment.cgi?id=67890
Terminal output (both success and crash)
Calling getaddrinfo with pNodeName = NULL and a non-standard pServiceName that
is not present in /etc/services causes an Unhandled page fault.
I noticed this issue using SAP GUI, a Windows client for a corporate ERP system
that uses unusual TCP ports for some of its connections to servers.
These port numbers are registered in %WINDIR%\system32\drivers\etc\services
during installation, and after going through some traces I noticed the error
stopped after adding the same entries to the host's (macOS) /etc/services file.
Since SAP GUI is licensed software, I created a little C program that simulates
the same problem.
It simply calls getaddrinfo with a service name "I_dont_exist".
If this entry is not present in /etc/services, the program crashes.
Tested on Wine 5.14 upstream binaries downloaded from PlayOnLinux/Phoenicis
Wine building service.
I also tested in other Wine version I use, namely 5.14-staging, 5.0 (WineHQ
Homebrew), 5.7-staging (WineHQ Homebrew) and CrossOver 19.0.1. All had the same
result.
Sample C program with .exe and source code:
https://abap.ninja/bugreport/wine_getaddrinfo_crash.zip
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