466 lines
14 KiB
C
466 lines
14 KiB
C
/*
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* Copyright (c) 1990 - 1994, Julianne Frances Haugh
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* Copyright (c) 1996 - 2000, Marek Michałkiewicz
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* Copyright (c) 2003 - 2006, Tomasz Kłoczko
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* Copyright (c) 2007 - 2010, Nicolas François
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* prototypes.h
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*
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* prototypes of libmisc functions, and private lib functions.
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*
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* $Id$
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*
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*/
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#ifndef _PROTOTYPES_H
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#define _PROTOTYPES_H
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#include <config.h>
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#include <sys/stat.h>
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#ifdef USE_UTMPX
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#include <utmpx.h>
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#else
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#include <utmp.h>
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#endif
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#include <sys/types.h>
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#include <pwd.h>
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#include <grp.h>
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#include <shadow.h>
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#include <lastlog.h>
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#include "defines.h"
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#include "commonio.h"
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extern /*@observer@*/ const char *Prog;
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/* addgrps.c */
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#if defined (HAVE_SETGROUPS) && ! defined (USE_PAM)
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extern int add_groups (const char *);
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#endif
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/* age.c */
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extern void agecheck (/*@null@*/const struct spwd *);
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extern int expire (const struct passwd *, /*@null@*/const struct spwd *);
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/* isexpired.c */
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extern int isexpired (const struct passwd *, /*@null@*/const struct spwd *);
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/* btrfs.c */
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#ifdef WITH_BTRFS
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extern int btrfs_create_subvolume(const char *path);
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extern int btrfs_remove_subvolume(const char *path);
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extern int btrfs_is_subvolume(const char *path);
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extern int is_btrfs(const char *path);
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#endif
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/* basename() renamed to Basename() to avoid libc name space confusion */
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/* basename.c */
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extern /*@observer@*/const char *Basename (const char *str);
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/* chowndir.c */
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extern int chown_tree (const char *root,
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uid_t old_uid, uid_t new_uid,
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gid_t old_gid, gid_t new_gid);
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/* chowntty.c */
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extern void chown_tty (const struct passwd *);
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/* cleanup.c */
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typedef /*@null@*/void (*cleanup_function) (/*@null@*/void *arg);
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void add_cleanup (/*@notnull@*/cleanup_function pcf, /*@null@*/void *arg);
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void del_cleanup (/*@notnull@*/cleanup_function pcf);
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void do_cleanups (void);
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/* cleanup_group.c */
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struct cleanup_info_mod {
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char *audit_msg;
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char *action;
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/*@observer@*/const char *name;
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};
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void cleanup_report_add_group (void *group_name);
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void cleanup_report_add_group_group (void *group_name);
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#ifdef SHADOWGRP
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void cleanup_report_add_group_gshadow (void *group_name);
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#endif
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void cleanup_report_del_group (void *group_name);
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void cleanup_report_del_group_group (void *group_name);
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#ifdef SHADOWGRP
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void cleanup_report_del_group_gshadow (void *group_name);
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#endif
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void cleanup_report_mod_passwd (void *cleanup_info);
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void cleanup_report_mod_group (void *cleanup_info);
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void cleanup_report_mod_gshadow (void *cleanup_info);
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void cleanup_unlock_group (/*@null@*/void *unused);
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#ifdef SHADOWGRP
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void cleanup_unlock_gshadow (/*@null@*/void *unused);
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#endif
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void cleanup_unlock_passwd (/*@null@*/void *unused);
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/* console.c */
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extern bool console (const char *);
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/* copydir.c */
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extern int copy_tree (const char *src_root, const char *dst_root,
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bool copy_root,
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bool reset_selinux,
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uid_t old_uid, uid_t new_uid,
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gid_t old_gid, gid_t new_gid);
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/* encrypt.c */
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extern /*@exposed@*//*@null@*/char *pw_encrypt (const char *, const char *);
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/* entry.c */
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extern void pw_entry (const char *, struct passwd *);
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/* env.c */
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extern void addenv (const char *, /*@null@*/const char *);
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extern void initenv (void);
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extern void set_env (int, char *const *);
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extern void sanitize_env (void);
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/* fields.c */
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extern void change_field (char *, size_t, const char *);
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extern int valid_field (const char *, const char *);
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/* find_new_gid.c */
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extern int find_new_gid (bool sys_group,
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gid_t *gid,
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/*@null@*/gid_t const *preferred_gid);
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/* find_new_uid.c */
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extern int find_new_uid (bool sys_user,
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uid_t *uid,
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/*@null@*/uid_t const *preferred_uid);
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#ifdef ENABLE_SUBIDS
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/* find_new_sub_gids.c */
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extern int find_new_sub_gids (const char *owner,
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gid_t *range_start, unsigned long *range_count);
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/* find_new_sub_uids.c */
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extern int find_new_sub_uids (const char *owner,
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uid_t *range_start, unsigned long *range_count);
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#endif /* ENABLE_SUBIDS */
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/* get_gid.c */
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extern int get_gid (const char *gidstr, gid_t *gid);
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/* getgr_nam_gid.c */
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extern /*@only@*//*@null@*/struct group *getgr_nam_gid (/*@null@*/const char *grname);
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/* getlong.c */
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extern int getlong (const char *numstr, /*@out@*/long int *result);
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/* get_pid.c */
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extern int get_pid (const char *pidstr, pid_t *pid);
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/* getrange */
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extern int getrange (char *range,
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unsigned long *min, bool *has_min,
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unsigned long *max, bool *has_max);
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/* gettime.c */
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extern time_t gettime ();
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/* get_uid.c */
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extern int get_uid (const char *uidstr, uid_t *uid);
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/* getulong.c */
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extern int getulong (const char *numstr, /*@out@*/unsigned long int *result);
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/* fputsx.c */
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extern /*@null@*/char *fgetsx (/*@returned@*/ /*@out@*/char *, int, FILE *);
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extern int fputsx (const char *, FILE *);
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/* groupio.c */
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extern void __gr_del_entry (const struct commonio_entry *ent);
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extern /*@observer@*/const struct commonio_db *__gr_get_db (void);
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extern /*@dependent@*/ /*@null@*/struct commonio_entry *__gr_get_head (void);
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extern void __gr_set_changed (void);
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/* groupmem.c */
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extern /*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent);
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extern void gr_free (/*@out@*/ /*@only@*/struct group *grent);
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/* hushed.c */
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extern bool hushed (const char *username);
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/* audit_help.c */
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#ifdef WITH_AUDIT
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extern int audit_fd;
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extern void audit_help_open (void);
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/* Use AUDIT_NO_ID when a name is provided to audit_logger instead of an ID */
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#define AUDIT_NO_ID ((unsigned int) -1)
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typedef enum {
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SHADOW_AUDIT_FAILURE = 0,
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SHADOW_AUDIT_SUCCESS = 1} shadow_audit_result;
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extern void audit_logger (int type, const char *pgname, const char *op,
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const char *name, unsigned int id,
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shadow_audit_result result);
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void audit_logger_message (const char *message, shadow_audit_result result);
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#endif
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/* limits.c */
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#ifndef USE_PAM
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extern void setup_limits (const struct passwd *);
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#endif
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/* list.c */
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extern /*@only@*/ /*@out@*/char **add_list (/*@returned@*/ /*@only@*/char **, const char *);
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extern /*@only@*/ /*@out@*/char **del_list (/*@returned@*/ /*@only@*/char **, const char *);
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extern /*@only@*/ /*@out@*/char **dup_list (char *const *);
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extern bool is_on_list (char *const *list, const char *member);
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extern /*@only@*/char **comma_to_list (const char *);
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/* log.c */
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extern void dolastlog (
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struct lastlog *ll,
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const struct passwd *pw,
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/*@unique@*/const char *line,
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/*@unique@*/const char *host);
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/* login_nopam.c */
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extern int login_access (const char *user, const char *from);
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/* loginprompt.c */
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extern void login_prompt (const char *, char *, int);
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/* mail.c */
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extern void mailcheck (void);
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/* motd.c */
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extern void motd (void);
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/* myname.c */
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extern /*@null@*//*@only@*/struct passwd *get_my_pwent (void);
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/* pam_pass_non_interactive.c */
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#ifdef USE_PAM
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extern int do_pam_passwd_non_interactive (const char *pam_service,
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const char *username,
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const char* password);
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#endif /* USE_PAM */
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/* obscure.c */
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#ifndef USE_PAM
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extern bool obscure (const char *, const char *, const struct passwd *);
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#endif
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/* pam_pass.c */
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#ifdef USE_PAM
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extern void do_pam_passwd (const char *user, bool silent, bool change_expired);
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#endif
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/* port.c */
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extern bool isttytime (const char *, const char *, time_t);
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/* prefix_flag.c */
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extern const char* process_prefix_flag (const char* short_opt, int argc, char **argv);
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extern struct group *prefix_getgrnam(const char *name);
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extern struct group *prefix_getgrgid(gid_t gid);
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extern struct passwd *prefix_getpwuid(uid_t uid);
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extern struct passwd *prefix_getpwnam(const char* name);
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extern struct spwd *prefix_getspnam(const char* name);
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extern struct group *prefix_getgr_nam_gid(const char *grname);
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extern void prefix_setpwent();
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extern struct passwd* prefix_getpwent();
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extern void prefix_endpwent();
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extern void prefix_setgrent();
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extern struct group* prefix_getgrent();
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extern void prefix_endgrent();
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/* pwd2spwd.c */
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#ifndef USE_PAM
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extern struct spwd *pwd_to_spwd (const struct passwd *);
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#endif
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/* pwdcheck.c */
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#ifndef USE_PAM
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extern void passwd_check (const char *, const char *, const char *);
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#endif
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/* pwd_init.c */
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extern void pwd_init (void);
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/* pwio.c */
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extern void __pw_del_entry (const struct commonio_entry *ent);
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extern struct commonio_db *__pw_get_db (void);
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extern /*@dependent@*/ /*@null@*/struct commonio_entry *__pw_get_head (void);
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/* pwmem.c */
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extern /*@null@*/ /*@only@*/struct passwd *__pw_dup (const struct passwd *pwent);
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extern void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent);
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/* remove_tree.c */
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extern int remove_tree (const char *root, bool remove_root);
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/* rlogin.c */
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extern int do_rlogin (const char *remote_host, char *name, size_t namelen,
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char *term, size_t termlen);
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/* root_flag.c */
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extern void process_root_flag (const char* short_opt, int argc, char **argv);
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/* salt.c */
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extern /*@observer@*/const char *crypt_make_salt (/*@null@*//*@observer@*/const char *meth, /*@null@*/void *arg);
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/* selinux.c */
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#ifdef WITH_SELINUX
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extern int set_selinux_file_context (const char *dst_name);
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extern int reset_selinux_file_context (void);
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#endif
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/* semanage.c */
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#ifdef WITH_SELINUX
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extern int set_seuser(const char *login_name, const char *seuser_name);
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extern int del_seuser(const char *login_name);
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#endif
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/* setugid.c */
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extern int setup_groups (const struct passwd *info);
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extern int change_uid (const struct passwd *info);
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#if (defined HAVE_INITGROUPS) && (! defined USE_PAM)
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extern int setup_uid_gid (const struct passwd *info, bool is_console);
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#else
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extern int setup_uid_gid (const struct passwd *info);
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#endif
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/* setup.c */
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extern void setup (struct passwd *);
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/* setupenv.c */
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extern void setup_env (struct passwd *);
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/* sgetgrent.c */
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extern struct group *sgetgrent (const char *buf);
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/* sgetpwent.c */
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extern struct passwd *sgetpwent (const char *buf);
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/* sgetspent.c */
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#ifndef HAVE_SGETSPENT
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extern struct spwd *sgetspent (const char *string);
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#endif
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/* sgroupio.c */
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extern void __sgr_del_entry (const struct commonio_entry *ent);
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extern /*@null@*/ /*@only@*/struct sgrp *__sgr_dup (const struct sgrp *sgent);
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extern void sgr_free (/*@out@*/ /*@only@*/struct sgrp *sgent);
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extern /*@dependent@*/ /*@null@*/struct commonio_entry *__sgr_get_head (void);
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extern void __sgr_set_changed (void);
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/* shadowio.c */
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extern /*@dependent@*/ /*@null@*/struct commonio_entry *__spw_get_head (void);
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extern void __spw_del_entry (const struct commonio_entry *ent);
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/* shadowmem.c */
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extern /*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent);
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extern void spw_free (/*@out@*/ /*@only@*/struct spwd *spent);
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/* shell.c */
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extern int shell (const char *file, /*@null@*/const char *arg, char *const envp[]);
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/* spawn.c */
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extern int run_command (const char *cmd, const char *argv[],
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/*@null@*/const char *envp[], /*@out@*/int *status);
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/* strtoday.c */
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extern long strtoday (const char *);
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/* suauth.c */
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extern int check_su_auth (const char *actual_id,
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const char *wanted_id,
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bool su_to_root);
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/* sulog.c */
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extern void sulog (const char *tty,
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bool success,
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const char *oldname,
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const char *name);
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/* sub.c */
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extern void subsystem (const struct passwd *);
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/* ttytype.c */
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extern void ttytype (const char *);
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/* tz.c */
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#ifndef USE_PAM
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extern /*@observer@*/const char *tz (const char *);
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#endif
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/* ulimit.c */
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extern int set_filesize_limit (int blocks);
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/* user_busy.c */
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extern int user_busy (const char *name, uid_t uid);
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/* utmp.c */
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#ifndef USE_UTMPX
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extern /*@null@*/struct utmp *get_current_utmp (void);
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extern struct utmp *prepare_utmp (const char *name,
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const char *line,
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const char *host,
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/*@null@*/const struct utmp *ut);
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extern int setutmp (struct utmp *ut);
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#else
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extern /*@null@*/struct utmpx *get_current_utmp (void);
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extern struct utmpx *prepare_utmpx (const char *name,
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const char *line,
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const char *host,
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/*@null@*/const struct utmpx *ut);
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extern int setutmpx (struct utmpx *utx);
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#endif /* USE_UTMPX */
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/* valid.c */
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extern bool valid (const char *, const struct passwd *);
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/* xmalloc.c */
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extern /*@maynotreturn@*/ /*@only@*//*@out@*//*@notnull@*/char *xmalloc (size_t size)
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/*@ensures MaxSet(result) == (size - 1); @*/;
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extern /*@maynotreturn@*/ /*@only@*//*@notnull@*/char *xstrdup (const char *);
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/* xgetpwnam.c */
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extern /*@null@*/ /*@only@*/struct passwd *xgetpwnam (const char *);
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/* xgetpwuid.c */
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extern /*@null@*/ /*@only@*/struct passwd *xgetpwuid (uid_t);
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/* xgetgrnam.c */
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extern /*@null@*/ /*@only@*/struct group *xgetgrnam (const char *);
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/* xgetgrgid.c */
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extern /*@null@*/ /*@only@*/struct group *xgetgrgid (gid_t);
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/* xgetspnam.c */
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extern /*@null@*/ /*@only@*/struct spwd *xgetspnam(const char *);
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/* yesno.c */
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extern bool yes_or_no (bool read_only);
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#endif /* _PROTOTYPES_H */
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