diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2011-08-09 04:05:13 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2011-08-09 04:05:13 +0200 |
| commit | 7485086f1eca78998d6cd31b0ce18a8a8ea3fc35 (patch) | |
| tree | ad3a754a07e29b0c86514bdac98c63618628b37d /shell/ash_ptr_hack.c | |
| parent | 6e42b89b8d136316e1b97b56cf885e8ef9d64caf (diff) | |
| download | busybox-7485086f1eca78998d6cd31b0ce18a8a8ea3fc35.tar.gz | |
die_if_bad_username: tighten up a bit
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>
Diffstat (limited to 'shell/ash_ptr_hack.c')
0 files changed, 0 insertions, 0 deletions