function old new delta
die_if_bad_username 77 97 +20
Based on patches from Tito.
The changes are:
better comments
we disallow '@' now - in practice such usernames will be unusable
use of the portable filename character set plus '$'
don't use isalnum as it allows non-ASCII letters in legacy 8-bit locales (pointed out by Rich Felker)
enforce maximum length of LOGIN_NAME_MAX (including NUL)
don't allow '$', '.', and '-' as first char
don't print the illegal char in error message as if it is a wide char it will be unreadable
print the position of the illegal character
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Please see the LICENSE file for copyright information (GPLv2)
libbb is BusyBox's utility library. All of this stuff used to be stuffed into
a single file named utility.c. When I split utility.c to create libbb, some of
the very oldest stuff ended up without their original copyright and licensing
information (which is now lost in the mists of time). If you see something
that you wrote that is mis-attributed, do let me know so we can fix that up.
Erik Andersen
<andersen@codepoet.org>
7485086f1e