shadow/lib/prototypes.h

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/*
* Copyright (c) 1990 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2003 - 2006, Tomasz Kłoczko
2010-08-22 18:34:54 +05:30
* Copyright (c) 2007 - 2010, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* prototypes.h
*
* prototypes of libmisc functions, and private lib functions.
*
* $Id$
*
*/
#ifndef _PROTOTYPES_H
#define _PROTOTYPES_H
#include <config.h>
#include <sys/stat.h>
#ifdef USE_UTMPX
#include <utmpx.h>
#else
#include <utmp.h>
#endif
#include <sys/types.h>
#include <pwd.h>
#include <grp.h>
#include <shadow.h>
#include <lastlog.h>
#include "defines.h"
#include "commonio.h"
extern /*@observer@*/ const char *Prog; /* Program name showed in error messages */
extern FILE *shadow_logfd; /* file descripter to which error messages are printed */
/* addgrps.c */
#if defined (HAVE_SETGROUPS) && ! defined (USE_PAM)
extern int add_groups (const char *);
#endif
/* age.c */
extern void agecheck (/*@null@*/const struct spwd *);
extern int expire (const struct passwd *, /*@null@*/const struct spwd *);
/* isexpired.c */
extern int isexpired (const struct passwd *, /*@null@*/const struct spwd *);
/* btrfs.c */
#ifdef WITH_BTRFS
extern int btrfs_create_subvolume(const char *path);
extern int btrfs_remove_subvolume(const char *path);
extern int btrfs_is_subvolume(const char *path);
extern int is_btrfs(const char *path);
#endif
/* basename() renamed to Basename() to avoid libc name space confusion */
/* basename.c */
extern /*@observer@*/const char *Basename (const char *str);
/* chowndir.c */
2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/useradd.c: spool is a constant string. * src/useradd.c: Set the new copy_tree's paramater 'copy_root' to false 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/usermod.c: move_home() is only called if mflg is set. * src/usermod.c: Fail is -m is provided but the old home directory is not a directory. * src/usermod.c: Use the previous improvement of copy_tree to provide better error diagnosis. * src/usermod.c: When rename() is used, also change the ownership. * src/usermod.c: Do not change the ownership of the root directory twice. * src/usermod.c: When -u is provided, only change the ownership of the home directory if it is a directory. * src/usermod.c: Also change ownerships when -g is used. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * lib/prototypes.h, libmisc/copydir.c: Add the old UID and GID to copy_tree to detect when ownership shall be changed. * libmisc/copydir.c: Document the behavior when the IDs are set to -1. * lib/prototypes.h, libmisc/copydir.c (copy_tree): Add parameter copy_root. * libmisc/copydir.c: error() and ctx can be static. * libmisc/copydir.c (copy_hardlink): Remove parameter src. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * libmisc/chowndir.c: Dynamically allocate memory to support path longer than 1024 characters. * libmisc/chowndir.c: Fix typos in documentation. * libmisc/chowndir.c: Support and document the behavior when a old or new ID is set to -1. * libmisc/chowndir.c: Improved error detection when chown fails. * libmisc/chowndir.c: Harmonize error handling strategy when an error occurs: stop changing ownership as soon as an error was detected.
2010-04-05 02:25:46 +05:30
extern int chown_tree (const char *root,
uid_t old_uid, uid_t new_uid,
gid_t old_gid, gid_t new_gid);
/* chowntty.c */
extern void chown_tty (const struct passwd *);
/* cleanup.c */
typedef /*@null@*/void (*cleanup_function) (/*@null@*/void *arg);
void add_cleanup (/*@notnull@*/cleanup_function pcf, /*@null@*/void *arg);
void del_cleanup (/*@notnull@*/cleanup_function pcf);
void do_cleanups (void);
/* cleanup_group.c */
struct cleanup_info_mod {
char *audit_msg;
char *action;
/*@observer@*/const char *name;
};
void cleanup_report_add_group (void *group_name);
void cleanup_report_add_group_group (void *group_name);
#ifdef SHADOWGRP
void cleanup_report_add_group_gshadow (void *group_name);
#endif
void cleanup_report_del_group (void *group_name);
void cleanup_report_del_group_group (void *group_name);
#ifdef SHADOWGRP
void cleanup_report_del_group_gshadow (void *group_name);
#endif
void cleanup_report_mod_passwd (void *cleanup_info);
void cleanup_report_mod_group (void *cleanup_info);
void cleanup_report_mod_gshadow (void *cleanup_info);
void cleanup_unlock_group (/*@null@*/void *unused);
#ifdef SHADOWGRP
void cleanup_unlock_gshadow (/*@null@*/void *unused);
#endif
void cleanup_unlock_passwd (/*@null@*/void *unused);
/* console.c */
extern bool console (const char *);
/* copydir.c */
extern int copy_tree (const char *src_root, const char *dst_root,
2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/useradd.c: spool is a constant string. * src/useradd.c: Set the new copy_tree's paramater 'copy_root' to false 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/usermod.c: move_home() is only called if mflg is set. * src/usermod.c: Fail is -m is provided but the old home directory is not a directory. * src/usermod.c: Use the previous improvement of copy_tree to provide better error diagnosis. * src/usermod.c: When rename() is used, also change the ownership. * src/usermod.c: Do not change the ownership of the root directory twice. * src/usermod.c: When -u is provided, only change the ownership of the home directory if it is a directory. * src/usermod.c: Also change ownerships when -g is used. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * lib/prototypes.h, libmisc/copydir.c: Add the old UID and GID to copy_tree to detect when ownership shall be changed. * libmisc/copydir.c: Document the behavior when the IDs are set to -1. * lib/prototypes.h, libmisc/copydir.c (copy_tree): Add parameter copy_root. * libmisc/copydir.c: error() and ctx can be static. * libmisc/copydir.c (copy_hardlink): Remove parameter src. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * libmisc/chowndir.c: Dynamically allocate memory to support path longer than 1024 characters. * libmisc/chowndir.c: Fix typos in documentation. * libmisc/chowndir.c: Support and document the behavior when a old or new ID is set to -1. * libmisc/chowndir.c: Improved error detection when chown fails. * libmisc/chowndir.c: Harmonize error handling strategy when an error occurs: stop changing ownership as soon as an error was detected.
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bool copy_root,
bool reset_selinux,
2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/useradd.c: spool is a constant string. * src/useradd.c: Set the new copy_tree's paramater 'copy_root' to false 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * src/usermod.c: move_home() is only called if mflg is set. * src/usermod.c: Fail is -m is provided but the old home directory is not a directory. * src/usermod.c: Use the previous improvement of copy_tree to provide better error diagnosis. * src/usermod.c: When rename() is used, also change the ownership. * src/usermod.c: Do not change the ownership of the root directory twice. * src/usermod.c: When -u is provided, only change the ownership of the home directory if it is a directory. * src/usermod.c: Also change ownerships when -g is used. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * lib/prototypes.h, libmisc/copydir.c: Add the old UID and GID to copy_tree to detect when ownership shall be changed. * libmisc/copydir.c: Document the behavior when the IDs are set to -1. * lib/prototypes.h, libmisc/copydir.c (copy_tree): Add parameter copy_root. * libmisc/copydir.c: error() and ctx can be static. * libmisc/copydir.c (copy_hardlink): Remove parameter src. 2010-04-04 Nicolas François <nicolas.francois@centraliens.net> * libmisc/chowndir.c: Dynamically allocate memory to support path longer than 1024 characters. * libmisc/chowndir.c: Fix typos in documentation. * libmisc/chowndir.c: Support and document the behavior when a old or new ID is set to -1. * libmisc/chowndir.c: Improved error detection when chown fails. * libmisc/chowndir.c: Harmonize error handling strategy when an error occurs: stop changing ownership as soon as an error was detected.
2010-04-05 02:25:46 +05:30
uid_t old_uid, uid_t new_uid,
gid_t old_gid, gid_t new_gid);
/* encrypt.c */
extern /*@exposed@*//*@null@*/char *pw_encrypt (const char *, const char *);
/* entry.c */
extern void pw_entry (const char *, struct passwd *);
/* env.c */
extern void addenv (const char *, /*@null@*/const char *);
extern void initenv (void);
extern void set_env (int, char *const *);
extern void sanitize_env (void);
/* fields.c */
extern void change_field (char *, size_t, const char *);
extern int valid_field (const char *, const char *);
/* find_new_gid.c */
extern int find_new_gid (bool sys_group,
gid_t *gid,
/*@null@*/gid_t const *preferred_gid);
/* find_new_uid.c */
extern int find_new_uid (bool sys_user,
uid_t *uid,
/*@null@*/uid_t const *preferred_uid);
#ifdef ENABLE_SUBIDS
/* find_new_sub_gids.c */
extern int find_new_sub_gids (gid_t *range_start, unsigned long *range_count);
/* find_new_sub_uids.c */
extern int find_new_sub_uids (uid_t *range_start, unsigned long *range_count);
#endif /* ENABLE_SUBIDS */
/* get_gid.c */
extern int get_gid (const char *gidstr, gid_t *gid);
/* getgr_nam_gid.c */
extern /*@only@*//*@null@*/struct group *getgr_nam_gid (/*@null@*/const char *grname);
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/* getlong.c */
extern int getlong (const char *numstr, /*@out@*/long int *result);
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/* get_pid.c */
extern int get_pid (const char *pidstr, pid_t *pid);
/* getrange */
extern int getrange (char *range,
unsigned long *min, bool *has_min,
unsigned long *max, bool *has_max);
/* gettime.c */
extern time_t gettime ();
/* get_uid.c */
extern int get_uid (const char *uidstr, uid_t *uid);
/* getulong.c */
extern int getulong (const char *numstr, /*@out@*/unsigned long int *result);
/* fputsx.c */
extern /*@null@*/char *fgetsx (/*@returned@*/ /*@out@*/char *, int, FILE *);
extern int fputsx (const char *, FILE *);
/* groupio.c */
extern void __gr_del_entry (const struct commonio_entry *ent);
extern /*@observer@*/const struct commonio_db *__gr_get_db (void);
extern /*@dependent@*/ /*@null@*/struct commonio_entry *__gr_get_head (void);
extern void __gr_set_changed (void);
/* groupmem.c */
extern /*@null@*/ /*@only@*/struct group *__gr_dup (const struct group *grent);
extern void gr_free_members (struct group *grent);
extern void gr_free (/*@out@*/ /*@only@*/struct group *grent);
extern bool gr_append_member (struct group *grp, char *member);
/* hushed.c */
extern bool hushed (const char *username);
/* audit_help.c */
#ifdef WITH_AUDIT
extern int audit_fd;
extern void audit_help_open (void);
/* Use AUDIT_NO_ID when a name is provided to audit_logger instead of an ID */
#define AUDIT_NO_ID ((unsigned int) -1)
typedef enum {
SHADOW_AUDIT_FAILURE = 0,
SHADOW_AUDIT_SUCCESS = 1} shadow_audit_result;
extern void audit_logger (int type, const char *pgname, const char *op,
const char *name, unsigned int id,
shadow_audit_result result);
void audit_logger_message (const char *message, shadow_audit_result result);
#endif
/* limits.c */
#ifndef USE_PAM
extern void setup_limits (const struct passwd *);
#endif
/* list.c */
extern /*@only@*/ /*@out@*/char **add_list (/*@returned@*/ /*@only@*/char **, const char *);
extern /*@only@*/ /*@out@*/char **del_list (/*@returned@*/ /*@only@*/char **, const char *);
extern /*@only@*/ /*@out@*/char **dup_list (char *const *);
extern bool is_on_list (char *const *list, const char *member);
extern /*@only@*/char **comma_to_list (const char *);
/* log.c */
extern void dolastlog (
struct lastlog *ll,
const struct passwd *pw,
/*@unique@*/const char *line,
/*@unique@*/const char *host);
/* login_nopam.c */
extern int login_access (const char *user, const char *from);
/* loginprompt.c */
extern void login_prompt (const char *, char *, int);
/* mail.c */
extern void mailcheck (void);
/* motd.c */
extern void motd (void);
/* myname.c */
extern /*@null@*//*@only@*/struct passwd *get_my_pwent (void);
subids: support nsswitch Closes #154 When starting any operation to do with subuid delegation, check nsswitch for a module to use. If none is specified, then use the traditional /etc/subuid and /etc/subgid files. Currently only one module is supported, and there is no fallback to the files on errors. Several possibilities could be considered: 1. in case of connection error, fall back to files 2. in case of unknown user, also fall back to files etc... When non-files nss module is used, functions to edit the range are not supported. It may make sense to support it, but it also may make sense to require another tool to be used. libsubordinateio also uses the nss_ helpers. This is how for instance lxc could easily be converted to supporting nsswitch. Add a set of test cases, including a dummy libsubid_zzz module. This hardcodes values such that: 'ubuntu' gets 200000 - 300000 'user1' gets 100000 - 165536 'error' emulates an nss module error 'unknown' emulates a user unknown to the nss module 'conn' emulates a connection error ot the nss module Changes to libsubid: Change the list_owner_ranges api: return a count instead of making the array null terminated. This is a breaking change, so bump the libsubid abi major number. Rename free_subuid_range and free_subgid_range to ungrant_subuid_range, because otherwise it's confusing with free_subid_ranges which frees memory. Run libsubid tests in jenkins Switch argument order in find_subid_owners Move the db locking into subordinateio.c Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-02-01 05:08:20 +05:30
/* nss.c */
#include <libsubid/subid.h>
extern void nss_init(char *nsswitch_path);
extern bool nss_is_initialized();
struct subid_nss_ops {
/*
* nss_has_range: does a user own a given subid range
*
* @owner: username
* @start: first subid in queried range
* @count: number of subids in queried range
* @idtype: subuid or subgid
* @result: true if @owner has been allocated the subid range.
*
* returns success if the module was able to determine an answer (true or false),
* else an error status.
*/
enum subid_status (*has_range)(const char *owner, unsigned long start, unsigned long count, enum subid_type idtype, bool *result);
/*
* nss_list_owner_ranges: list the subid ranges delegated to a user.
*
* @owner - string representing username being queried
* @id_type - subuid or subgid
* @ranges - pointer to an array of struct subid_range, or NULL. The
* returned array must be freed by the caller.
subids: support nsswitch Closes #154 When starting any operation to do with subuid delegation, check nsswitch for a module to use. If none is specified, then use the traditional /etc/subuid and /etc/subgid files. Currently only one module is supported, and there is no fallback to the files on errors. Several possibilities could be considered: 1. in case of connection error, fall back to files 2. in case of unknown user, also fall back to files etc... When non-files nss module is used, functions to edit the range are not supported. It may make sense to support it, but it also may make sense to require another tool to be used. libsubordinateio also uses the nss_ helpers. This is how for instance lxc could easily be converted to supporting nsswitch. Add a set of test cases, including a dummy libsubid_zzz module. This hardcodes values such that: 'ubuntu' gets 200000 - 300000 'user1' gets 100000 - 165536 'error' emulates an nss module error 'unknown' emulates a user unknown to the nss module 'conn' emulates a connection error ot the nss module Changes to libsubid: Change the list_owner_ranges api: return a count instead of making the array null terminated. This is a breaking change, so bump the libsubid abi major number. Rename free_subuid_range and free_subgid_range to ungrant_subuid_range, because otherwise it's confusing with free_subid_ranges which frees memory. Run libsubid tests in jenkins Switch argument order in find_subid_owners Move the db locking into subordinateio.c Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-02-01 05:08:20 +05:30
* @count - pointer to an integer into which the number of returned ranges
* is written.
* returns success if the module was able to determine an answer,
* else an error status.
*/
enum subid_status (*list_owner_ranges)(const char *owner, enum subid_type id_type, struct subid_range **ranges, int *count);
subids: support nsswitch Closes #154 When starting any operation to do with subuid delegation, check nsswitch for a module to use. If none is specified, then use the traditional /etc/subuid and /etc/subgid files. Currently only one module is supported, and there is no fallback to the files on errors. Several possibilities could be considered: 1. in case of connection error, fall back to files 2. in case of unknown user, also fall back to files etc... When non-files nss module is used, functions to edit the range are not supported. It may make sense to support it, but it also may make sense to require another tool to be used. libsubordinateio also uses the nss_ helpers. This is how for instance lxc could easily be converted to supporting nsswitch. Add a set of test cases, including a dummy libsubid_zzz module. This hardcodes values such that: 'ubuntu' gets 200000 - 300000 'user1' gets 100000 - 165536 'error' emulates an nss module error 'unknown' emulates a user unknown to the nss module 'conn' emulates a connection error ot the nss module Changes to libsubid: Change the list_owner_ranges api: return a count instead of making the array null terminated. This is a breaking change, so bump the libsubid abi major number. Rename free_subuid_range and free_subgid_range to ungrant_subuid_range, because otherwise it's confusing with free_subid_ranges which frees memory. Run libsubid tests in jenkins Switch argument order in find_subid_owners Move the db locking into subordinateio.c Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-02-01 05:08:20 +05:30
/*
* nss_find_subid_owners: find uids who own a given subuid or subgid.
*
* @id - the delegated id (subuid or subgid) being queried
* @id_type - subuid or subgid
* @uids - pointer to an array of uids which will be allocated by
* nss_find_subid_owners()
* @count - number of uids found
*
* returns success if the module was able to determine an answer,
* else an error status.
*/
enum subid_status (*find_subid_owners)(unsigned long id, enum subid_type id_type, uid_t **uids, int *count);
/* The dlsym handle to close */
void *handle;
};
extern struct subid_nss_ops *get_subid_nss_handle();
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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,
const char *username,
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const char* password);
#endif /* USE_PAM */
/* obscure.c */
#ifndef USE_PAM
extern bool obscure (const char *, const char *, const struct passwd *);
#endif
/* pam_pass.c */
#ifdef USE_PAM
extern void do_pam_passwd (const char *user, bool silent, bool change_expired);
#endif
/* port.c */
extern bool isttytime (const char *, const char *, time_t);
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/* prefix_flag.c */
extern const char* process_prefix_flag (const char* short_opt, int argc, char **argv);
extern struct group *prefix_getgrnam(const char *name);
extern struct group *prefix_getgrgid(gid_t gid);
extern struct passwd *prefix_getpwuid(uid_t uid);
extern struct passwd *prefix_getpwnam(const char* name);
extern struct spwd *prefix_getspnam(const char* name);
extern struct group *prefix_getgr_nam_gid(const char *grname);
extern void prefix_setpwent();
extern struct passwd* prefix_getpwent();
extern void prefix_endpwent();
extern void prefix_setgrent();
extern struct group* prefix_getgrent();
extern void prefix_endgrent();
/* pwd2spwd.c */
#ifndef USE_PAM
extern struct spwd *pwd_to_spwd (const struct passwd *);
#endif
/* pwdcheck.c */
#ifndef USE_PAM
extern void passwd_check (const char *, const char *, const char *);
#endif
/* pwd_init.c */
extern void pwd_init (void);
/* pwio.c */
extern void __pw_del_entry (const struct commonio_entry *ent);
extern struct commonio_db *__pw_get_db (void);
extern /*@dependent@*/ /*@null@*/struct commonio_entry *__pw_get_head (void);
/* pwmem.c */
extern /*@null@*/ /*@only@*/struct passwd *__pw_dup (const struct passwd *pwent);
extern void pw_free (/*@out@*/ /*@only@*/struct passwd *pwent);
/* remove_tree.c */
extern int remove_tree (const char *root, bool remove_root);
/* rlogin.c */
extern int do_rlogin (const char *remote_host, char *name, size_t namelen,
char *term, size_t termlen);
/* root_flag.c */
extern void process_root_flag (const char* short_opt, int argc, char **argv);
/* salt.c */
extern /*@observer@*/const char *crypt_make_salt (/*@null@*//*@observer@*/const char *meth, /*@null@*/void *arg);
/* selinux.c */
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#ifdef WITH_SELINUX
extern int set_selinux_file_context (const char *dst_name, mode_t mode);
extern void reset_selinux_handle (void);
extern int reset_selinux_file_context (void);
extern int check_selinux_permit (const char *perm_name);
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#endif
/* semanage.c */
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#ifdef WITH_SELINUX
extern int set_seuser(const char *login_name, const char *seuser_name);
extern int del_seuser(const char *login_name);
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#endif
/* setugid.c */
extern int setup_groups (const struct passwd *info);
extern int change_uid (const struct passwd *info);
#if (defined HAVE_INITGROUPS) && (! defined USE_PAM)
extern int setup_uid_gid (const struct passwd *info, bool is_console);
#else
extern int setup_uid_gid (const struct passwd *info);
#endif
/* setup.c */
extern void setup (struct passwd *);
/* setupenv.c */
extern void setup_env (struct passwd *);
/* sgetgrent.c */
extern struct group *sgetgrent (const char *buf);
/* sgetpwent.c */
extern struct passwd *sgetpwent (const char *buf);
/* sgetspent.c */
#ifndef HAVE_SGETSPENT
extern struct spwd *sgetspent (const char *string);
#endif
/* sgroupio.c */
extern void __sgr_del_entry (const struct commonio_entry *ent);
extern /*@null@*/ /*@only@*/struct sgrp *__sgr_dup (const struct sgrp *sgent);
extern void sgr_free (/*@out@*/ /*@only@*/struct sgrp *sgent);
extern /*@dependent@*/ /*@null@*/struct commonio_entry *__sgr_get_head (void);
extern void __sgr_set_changed (void);
/* shadowio.c */
extern /*@dependent@*/ /*@null@*/struct commonio_entry *__spw_get_head (void);
extern void __spw_del_entry (const struct commonio_entry *ent);
/* shadowmem.c */
extern /*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent);
extern void spw_free (/*@out@*/ /*@only@*/struct spwd *spent);
/* shell.c */
extern int shell (const char *file, /*@null@*/const char *arg, char *const envp[]);
/* spawn.c */
extern int run_command (const char *cmd, const char *argv[],
/*@null@*/const char *envp[], /*@out@*/int *status);
/* strtoday.c */
extern long strtoday (const char *);
/* suauth.c */
extern int check_su_auth (const char *actual_id,
const char *wanted_id,
bool su_to_root);
/* sulog.c */
extern void sulog (const char *tty,
bool success,
const char *oldname,
const char *name);
/* sub.c */
extern void subsystem (const struct passwd *);
/* ttytype.c */
extern void ttytype (const char *);
/* tz.c */
#ifndef USE_PAM
extern /*@observer@*/const char *tz (const char *);
#endif
/* ulimit.c */
extern int set_filesize_limit (int blocks);
/* user_busy.c */
extern int user_busy (const char *name, uid_t uid);
/* utmp.c */
#ifndef USE_UTMPX
extern /*@null@*/struct utmp *get_current_utmp (void);
extern struct utmp *prepare_utmp (const char *name,
const char *line,
const char *host,
/*@null@*/const struct utmp *ut);
extern int setutmp (struct utmp *ut);
#else
extern /*@null@*/struct utmpx *get_current_utmp (void);
extern struct utmpx *prepare_utmpx (const char *name,
const char *line,
const char *host,
/*@null@*/const struct utmpx *ut);
extern int setutmpx (struct utmpx *utx);
#endif /* USE_UTMPX */
/* valid.c */
extern bool valid (const char *, const struct passwd *);
/* xmalloc.c */
* libmisc/limits.c: Avoid implicit conversion of integer to boolean. * libmisc/basename.c: Avoid implicit conversion of pointer to boolean. * libmisc/basename.c, lib/prototypes.h (Basename): Return a constant string. * libmisc/basename.c, libmisc/obscure.c, lib/prototypes.h, libmisc/xmalloc.c, libmisc/getdate.h, libmisc/system.c, libmisc/getgr_nam_gid.c, libmisc/failure.c, libmisc/valid.c: Add splint annotations. * libmisc/chowndir.c: Avoid memory leak. * libmisc/chowndir.c: Do not check *printf/*puts return value. * libmisc/chowntty.c: Avoid implicit conversion between integer types. * libmisc/obscure.c: Return a bool when possible instead of int. * libmisc/shell.c: Do not check *printf/*puts return value. * libmisc/shell.c: Do not check execle return value. * libmisc/setupenv.c: Avoid implicit conversion between integer types. * libmisc/xmalloc.c: size should not be zero to avoid returning NULL pointers. * libmisc/hushed.c: Do not check *printf/*puts return value. * libmisc/system.c: Avoid implicit conversion of integer to boolean. safe_system last argument is a boolean. * libmisc/system.c: Check return value of dup2. * libmisc/system.c: Do not check *printf/*puts return value. * libmisc/system.c: Do not check execve return value. * libmisc/salt.c: Do not check *printf/*puts return value. * libmisc/loginprompt.c: Do not check gethostname return value. * libmisc/find_new_gid.c, libmisc/find_new_uid.c: Do not check gr_rewind/pw_rewind return value. * libmisc/ttytype.c: Limit the number of parsed characters in the sscanf format. * libmisc/ttytype.c: Test if a type was really read. * libmisc/sub.c: Do not check *printf/*puts return value. * libmisc/sub.c: Avoid implicit conversion of integer to boolean. * src/userdel.c: Fix typo in comment. * src/userdel.c: Avoid implicit conversion of boolean to integer. * src/userdel.c: safe_system last argument is a boolean. * src/newusers.c: Avoid implicit conversion of boolean to integer. * src/newusers.c: Avoid implicit conversion of integer to boolean. * src/usermod.c: Add brackets. * src/usermod.c: Avoid implicit conversion of characters or integers to booleans. * src/vipw.c: Avoid implicit conversion of integer to boolean. * src/su.c: Avoid implicit conversion of integer to boolean. * src/su.c: Add brackets. * src/useradd.c: Avoid implicit conversion of characters or integers to booleans.
2010-08-23 00:43:53 +05:30
extern /*@maynotreturn@*/ /*@only@*//*@out@*//*@notnull@*/char *xmalloc (size_t size)
/*@ensures MaxSet(result) == (size - 1); @*/;
* libmisc/limits.c: Avoid implicit conversion of integer to boolean. * libmisc/basename.c: Avoid implicit conversion of pointer to boolean. * libmisc/basename.c, lib/prototypes.h (Basename): Return a constant string. * libmisc/basename.c, libmisc/obscure.c, lib/prototypes.h, libmisc/xmalloc.c, libmisc/getdate.h, libmisc/system.c, libmisc/getgr_nam_gid.c, libmisc/failure.c, libmisc/valid.c: Add splint annotations. * libmisc/chowndir.c: Avoid memory leak. * libmisc/chowndir.c: Do not check *printf/*puts return value. * libmisc/chowntty.c: Avoid implicit conversion between integer types. * libmisc/obscure.c: Return a bool when possible instead of int. * libmisc/shell.c: Do not check *printf/*puts return value. * libmisc/shell.c: Do not check execle return value. * libmisc/setupenv.c: Avoid implicit conversion between integer types. * libmisc/xmalloc.c: size should not be zero to avoid returning NULL pointers. * libmisc/hushed.c: Do not check *printf/*puts return value. * libmisc/system.c: Avoid implicit conversion of integer to boolean. safe_system last argument is a boolean. * libmisc/system.c: Check return value of dup2. * libmisc/system.c: Do not check *printf/*puts return value. * libmisc/system.c: Do not check execve return value. * libmisc/salt.c: Do not check *printf/*puts return value. * libmisc/loginprompt.c: Do not check gethostname return value. * libmisc/find_new_gid.c, libmisc/find_new_uid.c: Do not check gr_rewind/pw_rewind return value. * libmisc/ttytype.c: Limit the number of parsed characters in the sscanf format. * libmisc/ttytype.c: Test if a type was really read. * libmisc/sub.c: Do not check *printf/*puts return value. * libmisc/sub.c: Avoid implicit conversion of integer to boolean. * src/userdel.c: Fix typo in comment. * src/userdel.c: Avoid implicit conversion of boolean to integer. * src/userdel.c: safe_system last argument is a boolean. * src/newusers.c: Avoid implicit conversion of boolean to integer. * src/newusers.c: Avoid implicit conversion of integer to boolean. * src/usermod.c: Add brackets. * src/usermod.c: Avoid implicit conversion of characters or integers to booleans. * src/vipw.c: Avoid implicit conversion of integer to boolean. * src/su.c: Avoid implicit conversion of integer to boolean. * src/su.c: Add brackets. * src/useradd.c: Avoid implicit conversion of characters or integers to booleans.
2010-08-23 00:43:53 +05:30
extern /*@maynotreturn@*/ /*@only@*//*@notnull@*/char *xstrdup (const char *);
extern void xfree(void *ap);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* xgetpwnam.c */
extern /*@null@*/ /*@only@*/struct passwd *xgetpwnam (const char *);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* xgetpwuid.c */
extern /*@null@*/ /*@only@*/struct passwd *xgetpwuid (uid_t);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* xgetgrnam.c */
extern /*@null@*/ /*@only@*/struct group *xgetgrnam (const char *);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* xgetgrgid.c */
extern /*@null@*/ /*@only@*/struct group *xgetgrgid (gid_t);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* xgetspnam.c */
extern /*@null@*/ /*@only@*/struct spwd *xgetspnam(const char *);
* lib/prototypes.h, configure.in, libmisc/Makefile.am, libmisc/xgetXXbyYY.c, libmisc/xgetpwnam.c, libmisc/xgetpwuid.c, libmisc/xgetgrnam.c, libmisc/xgetgrgid.c, libmisc/xgetspnam.c: Added functions xgetpwnam(), xgetpwuid(), xgetgrnam(), xgetgrgid(), and xgetspnam(). They allocate memory for the returned structure and are more robust to successive calls. They are implemented with the libc's getxxyyy_r() functions if available. * libmisc/limits.c, libmisc/entry.c, libmisc/chowntty.c, libmisc/addgrps.c, libmisc/myname.c, libmisc/rlogin.c, libmisc/pwdcheck.c, src/newgrp.c, src/login_nopam.c, src/userdel.c, src/lastlog.c, src/grpck.c, src/gpasswd.c, src/newusers.c, src/chpasswd.c, src/chfn.c, src/groupmems.c, src/usermod.c, src/expiry.c, src/groupdel.c, src/chgpasswd.c, src/su.c, src/useradd.c, src/groupmod.c, src/passwd.c, src/pwck.c, src/groupadd.c, src/chage.c, src/login.c, src/suauth.c, src/faillog.c, src/groups.c, src/chsh.c, src/id.c: Review all the usage of one of the getpwnam(), getpwuid(), getgrnam(), getgrgid(), and getspnam() functions. It was noticed on http://bugs.debian.org/341230 that chfn and chsh use a passwd structure after calling a pam function, which result in using information from the passwd structure requested by pam, not the original one. It is much easier to use the new xget... functions to avoid these issues. I've checked which call to the original get... functions could be left (reducing the scope of the structure if possible), and I've left comments to ease future reviews (e.g. /* local, no need for xgetpwnam */). Note: the getpwent/getgrent calls should probably be checked also. * src/groupdel.c, src/expiry.c: Fix typos in comments. * src/groupmod.c: Re-indent. * libmisc/Makefile.am, lib/groupmem.c, lib/groupio.c, lib/pwmem.c, lib/pwio.c, lib/shadowmem.c, lib/shadowio.c: Move the __<xx>_dup functions (used by the xget... functions) from the <xx>io.c files to the new <xx>mem.c files. This avoid linking some utils against the SELinux library.
2007-11-19 04:45:26 +05:30
/* yesno.c */
extern bool yes_or_no (bool read_only);
#endif /* _PROTOTYPES_H */