diff options
Diffstat (limited to 'libmisc/chkname.c')
-rw-r--r-- | libmisc/chkname.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/libmisc/chkname.c b/libmisc/chkname.c deleted file mode 100644 index e31ee8c..0000000 --- a/libmisc/chkname.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh - * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz - * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko - * SPDX-FileCopyrightText: 2005 - 2008, Nicolas François - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -/* - * is_valid_user_name(), is_valid_group_name() - check the new user/group - * name for validity; - * return values: - * true - OK - * false - bad name - */ - -#include <config.h> - -#ident "$Id$" - -#include <ctype.h> -#include "defines.h" -#include "chkname.h" - -int allow_bad_names = false; - -static bool is_valid_name (const char *name) -{ - if (allow_bad_names) { - return true; - } - - /* - * User/group names must match gnu e-regex: - * [a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]? - * - * as a non-POSIX, extension, allow "$" as the last char for - * sake of Samba 3.x "add machine script" - * - * Also do not allow fully numeric names or just "." or "..". - */ - int numeric; - - if ('\0' == *name || - ('.' == *name && (('.' == name[1] && '\0' == name[2]) || - '\0' == name[1])) || - !((*name >= 'a' && *name <= 'z') || - (*name >= 'A' && *name <= 'Z') || - (*name >= '0' && *name <= '9') || - *name == '_' || - *name == '.')) { - return false; - } - - numeric = isdigit(*name); - - while ('\0' != *++name) { - if (!((*name >= 'a' && *name <= 'z') || - (*name >= 'A' && *name <= 'Z') || - (*name >= '0' && *name <= '9') || - *name == '_' || - *name == '.' || - *name == '-' || - (*name == '$' && name[1] == '\0') - )) { - return false; - } - numeric &= isdigit(*name); - } - - return !numeric; -} - -bool is_valid_user_name (const char *name) -{ - /* - * User names are limited by whatever utmp can - * handle. - */ - if (strlen (name) > USER_NAME_MAX_LENGTH) { - return false; - } - - return is_valid_name (name); -} - -bool is_valid_group_name (const char *name) -{ - /* - * Arbitrary limit for group names. - * HP-UX 10 limits to 16 characters - */ - if ( (GROUP_NAME_MAX_LENGTH > 0) - && (strlen (name) > GROUP_NAME_MAX_LENGTH)) { - return false; - } - - return is_valid_name (name); -} - |