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Observe -U flag again, and use it in preference to getlogin(), if

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the user is privileged.

I believe this should address both concerns in PR 9729, and may also
provide the desired behavior from PR 9485.
This commit is contained in:
Garrett Wollman 1999-02-01 19:53:08 +00:00
parent 2712c396cb
commit 4f92720c08
1 changed files with 11 additions and 4 deletions
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15
usr.sbin/lpr/lpr/lpr.c
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@ -48,7 +48,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)from: lpr.c 8.4 (Berkeley) 4/28/95";
#endif
static const char rcsid[] =
"$Id: lpr.c,v 1.26 1999/01/06 08:25:56 imp Exp $";
"$Id: lpr.c,v 1.27 1999/01/06 08:33:38 imp Exp $";
#endif /* not lint */
/*
@ -99,6 +99,7 @@ static int tfd; /* control file descriptor */
static char *tfname; /* tmp copy of cf before linking */
static char *title; /* pr'ing title */
static int userid; /* user id */
static char *Uflag; /* user name specified with -U flag */
static char *width; /* width for versatec printing */
static struct stat statb;
@ -188,7 +189,7 @@ main(argc, argv)
case 'U': /* user name */
hdr++;
person = optarg;
uflag = optarg;
break;
case 'c': /* print cifplot output */
@ -266,14 +267,20 @@ main(argc, argv)
* the daemon actually checks for the string "root" in its
* permission checking. Sigh.
*/
if ((person = getlogin()) == NULL) {
userid = getuid();
userid = getuid();
if (Uflag) {
if (userid != 0 && userid != pp->daemon_user)
errx(1, "only privileged users may use the `-U' flag");
person = Uflag;
} else {
person = getlogin();
if (userid != pp->daemon_user || person == 0) {
if ((pw = getpwuid(userid)) == NULL)
errx(1, "Who are you?");
person = pw->pw_name;
}
}
/*
* Check for restricted group access.
*/