Date: Tue, 27 Jul 1999 11:43:58 +0900 From: yasuf@big.or.jp To: FreeBSD-gnats-submit@freebsd.org Subject: bin/12828: passwd(1) doesn't recognize comments Message-ID: <19990727114358W.yasuf@big.or.jp>
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>Number: 12828
>Category: bin
>Synopsis: passwd(1) doesn't recognize comments
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jul 26 19:50:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Yasuhiro Fukuma
>Release: FreeBSD 4.0-CURRENT i386
>Organization:
>Environment:
FreeBSD smoove.ouchi-net.jp 4.0-CURRENT FreeBSD 4.0-CURRENT #10: Sun Jul 4 13:44:45 JST 1999 yasuf@smoove.ouchi-net.jp:/usr/src/sys/compile/ARMADILLO i386
>Description:
Passwd(5) manpage says:
| Lines whose first non-whitespace character is a pound-sign (#) are com-
| ments, and are ignored. Blank lines which consist only of spaces, tabs
| or newlines are also ignored.
but passwd(1) (, chpass(1), etc.) seems not to support these features
correctly.
>How-To-Repeat:
# tail -3 /etc/master.passwd
user1:*:9999:9999::0:0:some user:/home/user1:
# comment
user2:*:9998:9998::0:0:other user:/home/user2:
# passwd user1
Changing local password for user1.
New password:
Retype new password:
passwd: updating the database...
passwd: done
# passwd user2
Changing local password for user2.
New password:
Retype new password:
passwd: /etc/master.passwd: corrupted entry
passwd: /etc/master.passwd: unchanged
>Fix:
Index: usr.bin/chpass/pw_copy.c
===================================================================
RCS file: /home/ncvs/src/usr.bin/chpass/pw_copy.c,v
retrieving revision 1.7
diff -u -r1.7 pw_copy.c
--- pw_copy.c 1999/04/25 22:37:56 1.7
+++ pw_copy.c 1999/07/23 04:56:26
@@ -85,6 +85,15 @@
goto err;
continue;
}
+ for (p = buf; *p != '\n'; p++)
+ if (*p != ' ' && *p != '\t')
+ break;
+ if (*p == '#' || *p == '\n') {
+ (void)fprintf(to, "%s", buf);
+ if (ferror(to))
+ goto err;
+ continue;
+ }
if (!(p = strchr(buf, ':'))) {
warnx("%s: corrupted entry", _PATH_MASTERPASSWD);
pw_error(NULL, 0, 1);
>Release-Note:
>Audit-Trail:
>Unformatted:
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