hi guys, in dlls/icmp/icmp_main.c would it be possible to use system("/bin/ping..."); if not running as uid 0?, (or using pipes if the ouput needs to be parsed) as /bin/ping is obviously usually suid root and if the required options are available as arguments to /bin/ping then wine can do as requested without running as root, this would be useful to me with something im working on.
if you guys do consider it a possibility, i would be willing to research it and write the patch, id just like the go-ahead from you :) if you can think of any other way round it, id be greatful to hear your suggestions.
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On Sat, 25 Jan 2003, Jason Algol wrote:
hi guys, in dlls/icmp/icmp_main.c would it be possible to use system("/bin/ping..."); if not running as uid 0?, (or using pipes if the ouput needs to be parsed) as /bin/ping is obviously usually suid root and if the required options are available as arguments to /bin/ping then wine can do as requested without running as root, this would be useful to me with something im working on.
There are two issues with this approach: * ping does not give you complete control of the packet that is sent, especially for the TTL, IP options and contents of the packet. For the contents of the packet you can cheat and just do as if you sent the proper content, it is unlikely to make any difference. However the TTL and IP options are more likely to have an impact on the result of the probe so they cannot be ignored if anything special is specified. But hopefully that would not be too common (of course the application I worked on when working on the ICMP dll was the Windows port of bing which systematically modifies the ttl). * the command line options and output of ping programs varies a lot between Linux (GNU), FreeBSD and Solaris. It's probasbly going to be a bit tricky to handle these differences cleanly.
if you guys do consider it a possibility, i would be willing to research it and write the patch, id just like the go-ahead from you :) if you can think of any other way round it, id be greatful to hear your suggestions.
I would not object to it as long as it complements the current code (which seems to be your intention :-).
<disclaimer>But I'm not the one with commit access.</disclaimer>
On Tue, 4 Feb 2003 10:10:02 -0800 (PST), you wrote:
However the TTL and IP options are more likely to have an impact on the result of the probe so they cannot be ignored if anything special is specified. But hopefully that would not be too common (of course the application I worked on when working on the ICMP dll was the Windows port of bing which systematically modifies the ttl).
Trace route programs under windows frequently use ICMP it and need to modify TTL. Windows default tracert.exe works fine at the moment.
Rein.
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Francois Gouget -
Jason Algol -
Rein Klazes