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authorbrian <brian@FreeBSD.org>2000-10-02 22:27:34 +0000
committerbrian <brian@FreeBSD.org>2000-10-02 22:27:34 +0000
commit387093d29e278e3eacdcbaf68dcf8f091979e859 (patch)
tree6cf8b451013b804373910cf089bd5a05b4709ea9 /usr.bin/finger
parent30148a4f5c4597ab74264eb52d11b5f44f10f33b (diff)
downloadFreeBSD-src-387093d29e278e3eacdcbaf68dcf8f091979e859.zip
FreeBSD-src-387093d29e278e3eacdcbaf68dcf8f091979e859.tar.gz
Don't allow finger /somefile, only allow filname expansions from
inside /etc/finger.conf PR: 21704
Diffstat (limited to 'usr.bin/finger')
-rw-r--r--usr.bin/finger/finger.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/usr.bin/finger/finger.c b/usr.bin/finger/finger.c
index 006c67d..3ad3a3f 100644
--- a/usr.bin/finger/finger.c
+++ b/usr.bin/finger/finger.c
@@ -293,6 +293,16 @@ userlist(argc, argv)
goto net;
/*
+ * Mark any arguments beginning with '/' as invalid so that we
+ * don't accidently confuse them with expansions from finger.conf
+ */
+ for (p = argv, ip = used; *p; ++p, ++ip)
+ if (**p == '/') {
+ *ip = 1;
+ warnx("%s: no such user", *p);
+ }
+
+ /*
* Traverse the finger alias configuration file of the form
* alias:(user|alias), ignoring comment lines beginning '#'.
*/
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