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From: maruyama@sunnm.ism.ac.jp (MARUYAMA Naomasa)
Subject: Strange behavier on #! interpretation (Secure SUID scripts)
References: <1vjtib$725@lucy.ee.und.ac.za>
Date: Mon, 21 Jun 1993 03:17:14 GMT
Nntp-Posting-Host: sunnm
Reply-To: maruyama@ism.ac.jp
Organization: The Inst. of Statistical Mathematics, Tokyo Japan
Sender: news@ism.ac.jp
In-Reply-To: barrett@lucy.ee.und.ac.za's message of 15 Jun 1993 09:26:03 +0200
Message-ID: <MARUYAMA.93Jun21121714@sunnm.ism.ac.jp>
Lines: 62
In article <1vjtib$725@lucy.ee.und.ac.za>
barrett@lucy.ee.und.ac.za (Alan Barrett) writes:
>I recommend Maarten Litmaath's "indir" wrapper, available from all good
>comp.sources.unix archives. indir is a small SUID root program, and
But it doesn't work on 386BSD patch 0.2.3! It always results the
following message.
indir: -[ugbn] option expected
The reason for this may be found by the following tests. Let "listarg"
be the following C program:
main(argc, argv)
int argc;
char **argv;
{ int i;
printf("Test\n");
printf("%d\n",argc);
for (i=0;i<argc; i++)
{ printf("%s\n", argv[i]);}
}
Then the script (which I named it t1)
#!/home/maruyama/listarg foo bar
produces no output! But if I change the name of the executable to
"a.out", then the script (which I named it t2)
#!/home/maruyama/a.out foo bar
produces the output
Test
2
/home.maruyama/a.out
t2
Moreover, the next script (which I named t3)
#!/home/maruyama/listarg
prduces
Test
2
/home/maruyama/listarg
t3
Hummmmmmmmmm.
1993年06月21日(月)
--------
丸山彫苳殺苳算＠統計数理研瘢雹究所
maruyama@ism.ac.jp
--
1993年06月21日(月)
--------
丸山彫苳殺苳算＠統計数理研瘢雹究所
maruyama@ism.ac.jp