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freebsd-nq/lib/libutil/libutil.h
Stanislav Sedov 0daf62d9f5 - Commit work from libprocstat project. These patches add support for runtime 
file and processes information retrieval from the running kernel via sysctl
  in the form of new library, libprocstat.  The library also supports KVM backend
  for analyzing memory crash dumps.  Both procstat(1) and fstat(1) utilities have
  been modified to take advantage of the library (as the bonus point the fstat(1)
  utility no longer need superuser privileges to operate), and the procstat(1)
  utility is now able to display information from memory dumps as well.

  The newly introduced fuser(1) utility also uses this library and able to operate
  via sysctl and kvm backends.

  The library is by no means complete (e.g. KVM backend is missing vnode name
  resolution routines, and there're no manpages for the library itself) so I
  plan to improve it further.  I'm commiting it so it will get wider exposure
  and review.

  We won't be able to MFC this work as it relies on changes in HEAD, which
  was introduced some time ago, that break kernel ABI.  OTOH we may be able
  to merge the library with KVM backend if we really need it there.

Discussed with:	rwatson
2011-05-12 10:11:39 +00:00

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/*
* Copyright (c) 1996 Peter Wemm <peter@FreeBSD.org>.
* All rights reserved.
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* Portions of this software were developed for the FreeBSD Project by
* ThinkSec AS and NAI Labs, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, is 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 author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _LIBUTIL_H_
#define _LIBUTIL_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/_stdint.h>
#ifndef _GID_T_DECLARED
typedef __gid_t gid_t;
#define _GID_T_DECLARED
#endif
#ifndef _PID_T_DECLARED
typedef __pid_t pid_t;
#define _PID_T_DECLARED
#endif
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
#define _SIZE_T_DECLARED
#endif
#ifndef _UID_T_DECLARED
typedef __uid_t uid_t;
#define _UID_T_DECLARED
#endif
#define PROPERTY_MAX_NAME 64
#define PROPERTY_MAX_VALUE 512
/* for properties.c */
typedef struct _property {
struct _property *next;
char *name;
char *value;
} *properties;
#ifdef _SYS_PARAM_H_
/* for pidfile.c */
struct pidfh {
int pf_fd;
char pf_path[MAXPATHLEN + 1];
__dev_t pf_dev;
ino_t pf_ino;
};
#endif
/* Avoid pulling in all the include files for no need */
struct termios;
struct winsize;
struct in_addr;
struct kinfo_file;
struct kinfo_proc;
struct kinfo_vmentry;
__BEGIN_DECLS
void clean_environment(const char * const *_white,
const char * const *_more_white);
int extattr_namespace_to_string(int _attrnamespace, char **_string);
int extattr_string_to_namespace(const char *_string, int *_attrnamespace);
int flopen(const char *_path, int _flags, ...);
void hexdump(const void *ptr, int length, const char *hdr, int flags);
int login_tty(int _fd);
void trimdomain(char *_fullhost, int _hostsize);
int openpty(int *_amaster, int *_aslave, char *_name,
struct termios *_termp, struct winsize *_winp);
int forkpty(int *_amaster, char *_name,
struct termios *_termp, struct winsize *_winp);
int humanize_number(char *_buf, size_t _len, int64_t _number,
const char *_suffix, int _scale, int _flags);
int expand_number(const char *_buf, uint64_t *_num);
const char *uu_lockerr(int _uu_lockresult);
int uu_lock(const char *_ttyname);
int uu_unlock(const char *_ttyname);
int uu_lock_txfr(const char *_ttyname, pid_t _pid);
int _secure_path(const char *_path, uid_t _uid, gid_t _gid);
properties properties_read(int fd);
void properties_free(properties list);
char *property_find(properties list, const char *name);
char *auth_getval(const char *name);
int realhostname(char *host, size_t hsize, const struct in_addr *ip);
struct sockaddr;
int realhostname_sa(char *host, size_t hsize, struct sockaddr *addr,
int addrlen);
int kld_isloaded(const char *name);
int kld_load(const char *name);
struct kinfo_file *
kinfo_getfile(pid_t _pid, int *_cntp);
struct kinfo_vmentry *
kinfo_getvmmap(pid_t _pid, int *_cntp);
struct kinfo_proc *
kinfo_getallproc(int *_cntp);
struct kinfo_proc *
kinfo_getproc(pid_t _pid);
#ifdef _STDIO_H_ /* avoid adding new includes */
char *fparseln(FILE *, size_t *, size_t *, const char[3], int);
#endif
#ifdef _PWD_H_
int pw_copy(int _ffd, int _tfd, const struct passwd *_pw, struct passwd *_old_pw);
struct passwd *pw_dup(const struct passwd *_pw);
int pw_edit(int _notsetuid);
int pw_equal(const struct passwd *_pw1, const struct passwd *_pw2);
void pw_fini(void);
int pw_init(const char *_dir, const char *_master);
char *pw_make(const struct passwd *_pw);
int pw_mkdb(const char *_user);
int pw_lock(void);
struct passwd *pw_scan(const char *_line, int _flags);
const char *pw_tempname(void);
int pw_tmp(int _mfd);
#endif
#ifdef _GRP_H_
int gr_equal(const struct group *gr1, const struct group *gr2);
char *gr_make(const struct group *gr);
struct group *gr_dup(const struct group *gr);
struct group *gr_scan(const char *line);
#endif
#ifdef _SYS_PARAM_H_
struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
int pidfile_write(struct pidfh *pfh);
int pidfile_close(struct pidfh *pfh);
int pidfile_remove(struct pidfh *pfh);
#endif
#ifdef _UFS_UFS_QUOTA_H_
struct quotafile;
struct fstab;
struct quotafile *quota_open(struct fstab *, int, int);
void quota_close(struct quotafile *);
int quota_on(struct quotafile *);
int quota_off(struct quotafile *);
const char *quota_fsname(const struct quotafile *);
const char *quota_qfname(const struct quotafile *);
int quota_maxid(struct quotafile *);
int quota_check_path(const struct quotafile *, const char *path);
int quota_read(struct quotafile *, struct dqblk *, int);
int quota_write_limits(struct quotafile *, struct dqblk *, int);
int quota_write_usage(struct quotafile *, struct dqblk *, int);
int quota_convert(struct quotafile *, int);
#endif
__END_DECLS
#define UU_LOCK_INUSE (1)
#define UU_LOCK_OK (0)
#define UU_LOCK_OPEN_ERR (-1)
#define UU_LOCK_READ_ERR (-2)
#define UU_LOCK_CREAT_ERR (-3)
#define UU_LOCK_WRITE_ERR (-4)
#define UU_LOCK_LINK_ERR (-5)
#define UU_LOCK_TRY_ERR (-6)
#define UU_LOCK_OWNER_ERR (-7)
/* return values from realhostname() */
#define HOSTNAME_FOUND (0)
#define HOSTNAME_INCORRECTNAME (1)
#define HOSTNAME_INVALIDADDR (2)
#define HOSTNAME_INVALIDNAME (3)
/* fparseln(3) */
#define FPARSELN_UNESCESC 0x01
#define FPARSELN_UNESCCONT 0x02
#define FPARSELN_UNESCCOMM 0x04
#define FPARSELN_UNESCREST 0x08
#define FPARSELN_UNESCALL 0x0f
/* pw_scan() */
#define PWSCAN_MASTER 0x01
#define PWSCAN_WARN 0x02
/* humanize_number(3) */
#define HN_DECIMAL 0x01
#define HN_NOSPACE 0x02
#define HN_B 0x04
#define HN_DIVISOR_1000 0x08
#define HN_IEC_PREFIXES 0x10
/* maxscale = 0x07 */
#define HN_GETSCALE 0x10
#define HN_AUTOSCALE 0x20
/* hexdump(3) */
#define HD_COLUMN_MASK 0xff
#define HD_DELIM_MASK 0xff00
#define HD_OMIT_COUNT (1 << 16)
#define HD_OMIT_HEX (1 << 17)
#define HD_OMIT_CHARS (1 << 18)
#endif /* !_LIBUTIL_H_ */
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