NT 4.0 exception trap for elvis.exe

NT 4.0 exception trap for elvis.exe

[Anthony Tuininga]

I compiled and installed without any trouble the ncurses 1.9.0 package under cygwin b18 (with Sergey's patches). I then compiled and linked the elvis binary without any trouble. However, executing the binary causes the following trap.... If someone could explain what the problem is I could look into what exactly is causing it (perhaps). Any help would be appreciated. Thanks.

(d:\opt\src\elvis-2.0\elvis.exe 1003) In cygwin_except_handler exc C0000005 at 42DCA6 sp 244F25C
(d:\opt\src\elvis-2.0\elvis.exe 1003) Exception trapped!
(d:\opt\src\elvis-2.0\elvis.exe 1003) exception C0000005 at 42DCA6
(d:\opt\src\elvis-2.0\elvis.exe 1003) exception: ax 0 bx 0 cx 0 dx 2EB3804
(d:\opt\src\elvis-2.0\elvis.exe 1003) exception: si 2EB403C di 42DBEE bp 244F268 sp 244F25C
(d:\opt\src\elvis-2.0\elvis.exe 1003) exception is: STATUS_ACCESS_VIOLATION
(d:\opt\src\elvis-2.0\elvis.exe 1003) Stack trace:
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 0: sp = 0x244F090, pc = 0x1000D140
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 1: sp = 0x244F0AC, pc = 0x77F94492
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 2: sp = 0x244F0D0, pc = 0x77F88E93
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 3: sp = 0x244F15C, pc = 0x77F76202
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 4: sp = 0x244F268, pc = 0x42A144
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 5: sp = 0x244F284, pc = 0x42B7FE
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 6: sp = 0x244F2A0, pc = 0x401FE3
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 7: sp = 0x244F2BC, pc = 0x4022DB
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 8: sp = 0x244F33C, pc = 0x402477
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 9: sp = 0x244F354, pc = 0x1000C2B0
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 10: sp = 0x244FF94, pc = 0x1000C2C3
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 11: sp = 0x244FFA0, pc = 0x43CB29
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 12: sp = 0x244FFB0, pc = 0x40103B
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 13: sp = 0x244FFC0, pc = 0x77F1B26B
(d:\opt\src\elvis-2.0\elvis.exe 1003) frame 14: sp = 0x244FFF0, pc = 0x0
(d:\opt\src\elvis-2.0\elvis.exe 1003) End of stack trace
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RE: NT 4.0 exception trap for elvis.exe

[Anthony Tuininga]

Thanks to a few people who responded to me privately I moved forward on this problem a little. I did a little more checking into my problem and found a bug in Sergeys patches. So I downloaded the latest version and that problem went away. :-) However, another problem appeared instead. :-( Apparently user privileges are not set properly? The following code is the source of the problem:

			if (stat(dir, &st) != 0
			 || !S_ISDIR(st.st_mode)
			 || !(st.st_uid == geteuid()
			 	? (st.st_mode & S_IRWXU) == S_IRWXU
			 	: st.st_gid == getegid()
			 		? (st.st_mode & S_IRWXG) == S_IRWXG
			 		: (st.st_mode & S_IRWXO) == S_IRWXO))
			{
				*dir = '\0';
			}
The "stat" call passes; the file is a directory check passes; st_uid is set to 544 (on my system as administrator) but the geteuid call returns 500. The check for user privileges passes but because the UID and EUID do not match it goes to the group level and then to the other level, both of which return 0 to indicate that the privilege is not there. Any idea on what is going on? At the moment I have commented out the above code -- all directories are writable on my system so its not a big problem but I would like to fix this more permanently. :-)

Anthony
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