From 0629b78d815ce6a0b65aecc02fb18a122226274c Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Wed, 25 May 2016 23:32:14 -0400 Subject: stuff --- src/libbasic/user-util.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 src/libbasic/user-util.h (limited to 'src/libbasic/user-util.h') diff --git a/src/libbasic/user-util.h b/src/libbasic/user-util.h new file mode 100644 index 0000000000..c23f1d485d --- /dev/null +++ b/src/libbasic/user-util.h @@ -0,0 +1,65 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include + +bool uid_is_valid(uid_t uid); + +static inline bool gid_is_valid(gid_t gid) { + return uid_is_valid((uid_t) gid); +} + +int parse_uid(const char *s, uid_t* ret_uid); + +static inline int parse_gid(const char *s, gid_t *ret_gid) { + return parse_uid(s, (uid_t*) ret_gid); +} + +char* getlogname_malloc(void); +char* getusername_malloc(void); + +int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell); +int get_group_creds(const char **groupname, gid_t *gid); + +char* uid_to_name(uid_t uid); +char* gid_to_name(gid_t gid); + +int in_gid(gid_t gid); +int in_group(const char *name); + +int get_home_dir(char **ret); +int get_shell(char **_ret); + +int reset_uid_gid(void); + +int take_etc_passwd_lock(const char *root); + +#define UID_INVALID ((uid_t) -1) +#define GID_INVALID ((gid_t) -1) + +/* The following macros add 1 when converting things, since UID 0 is a + * valid UID, while the pointer NULL is special */ +#define PTR_TO_UID(p) ((uid_t) (((uintptr_t) (p))-1)) +#define UID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) + +#define PTR_TO_GID(p) ((gid_t) (((uintptr_t) (p))-1)) +#define GID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) -- cgit v1.2.3-54-g00ecf