Date: Thu, 08 Feb 2001 18:35:47 -0500 (EST) From: Mike Heffner <mheffner@vt.edu> To: "Jacques A. Vidrine" <n@nectar.com> Cc: freebsd-audit@freebsd.org Subject: RE: login: exporting PAM environment Message-ID: <XFMail.20010208183547.mheffner@vt.edu> In-Reply-To: <20010208151845.A58884@hamlet.nectar.com>
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On 08-Feb-2001 Jacques A. Vidrine wrote:
| Hello,
|
| Please have a look at the following patch. This corrects login so
| that it exports environmental variables set by PAM modules. This is
| particularly important for certain options of pam_krb5.
[ snip ]
| +static int
| +ok_to_export(s)
| + const char *s;
| +{
| + static const char *noexport[] = {
| + "SHELL", "HOME", "LOGNAME", "MAIL", "CDPATH",
| + "IFS", "PATH", NULL
| + };
| + const char **pp;
| +
| + if (strlen(s) > 1024 || strchr(s, '=') == NULL)
| + return 0;
| + if (strncmp(s, "LD_", 3) == 0)
| + return 0;
| + for (pp = noexport; *pp != NULL; pp++) {
| + if (strcmp(s, *pp) == 0)
| + return 0;
This needs to be strncmp(s, *pp, strlen(*pp)), otherwise the comparison will
always fail.
--
Mike Heffner <mheffner@vt.edu>
Blacksburg, VA <mikeh@FreeBSD.org>
http://filebox.vt.edu/users/mheffner
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