| /* vi: set sw=4 ts=4: */ |
| /* |
| * password utility routines. |
| * |
| * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
| * Copyright (C) 2008 by Tito Ragusa <farmatito@tiscali.it> |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| */ |
| |
| #include "libbb.h" |
| |
| /* TODO: maybe change API to return malloced data? |
| * This will allow to stop using libc functions returning |
| * pointers to static data (getpwuid) |
| */ |
| |
| struct passwd* FAST_FUNC xgetpwnam(const char *name) |
| { |
| struct passwd *pw = getpwnam(name); |
| if (!pw) |
| bb_error_msg_and_die("unknown user %s", name); |
| return pw; |
| } |
| |
| struct group* FAST_FUNC xgetgrnam(const char *name) |
| { |
| struct group *gr = getgrnam(name); |
| if (!gr) |
| bb_error_msg_and_die("unknown group %s", name); |
| return gr; |
| } |
| |
| |
| struct passwd* FAST_FUNC xgetpwuid(uid_t uid) |
| { |
| struct passwd *pw = getpwuid(uid); |
| if (!pw) |
| bb_error_msg_and_die("unknown uid %u", (unsigned)uid); |
| return pw; |
| } |
| |
| struct group* FAST_FUNC xgetgrgid(gid_t gid) |
| { |
| struct group *gr = getgrgid(gid); |
| if (!gr) |
| bb_error_msg_and_die("unknown gid %u", (unsigned)gid); |
| return gr; |
| } |
| |
| char* FAST_FUNC xuid2uname(uid_t uid) |
| { |
| struct passwd *pw = xgetpwuid(uid); |
| return pw->pw_name; |
| } |
| |
| char* FAST_FUNC xgid2group(gid_t gid) |
| { |
| struct group *gr = xgetgrgid(gid); |
| return gr->gr_name; |
| } |
| |
| char* FAST_FUNC uid2uname(uid_t uid) |
| { |
| struct passwd *pw = getpwuid(uid); |
| return (pw) ? pw->pw_name : NULL; |
| } |
| |
| char* FAST_FUNC gid2group(gid_t gid) |
| { |
| struct group *gr = getgrgid(gid); |
| return (gr) ? gr->gr_name : NULL; |
| } |
| |
| char* FAST_FUNC uid2uname_utoa(uid_t uid) |
| { |
| char *name = uid2uname(uid); |
| return (name) ? name : utoa(uid); |
| } |
| |
| char* FAST_FUNC gid2group_utoa(gid_t gid) |
| { |
| char *name = gid2group(gid); |
| return (name) ? name : utoa(gid); |
| } |
| |
| long FAST_FUNC xuname2uid(const char *name) |
| { |
| struct passwd *myuser; |
| |
| myuser = xgetpwnam(name); |
| return myuser->pw_uid; |
| } |
| |
| long FAST_FUNC xgroup2gid(const char *name) |
| { |
| struct group *mygroup; |
| |
| mygroup = xgetgrnam(name); |
| return mygroup->gr_gid; |
| } |
| |
| unsigned long FAST_FUNC get_ug_id(const char *s, |
| long FAST_FUNC (*xname2id)(const char *)) |
| { |
| unsigned long r; |
| |
| r = bb_strtoul(s, NULL, 10); |
| if (errno) |
| return xname2id(s); |
| return r; |
| } |