xref: /dragonfly/lib/libutil/libutil.h (revision 193f58b8)
1 /*
2  * Copyright (c) 1996  Peter Wemm <peter@FreeBSD.org>.
3  * All rights reserved.
4  * Copyright (c) 2002 Networks Associates Technology, Inc.
5  * All rights reserved.
6  *
7  * Portions of this software were developed for the FreeBSD Project by
8  * ThinkSec AS and NAI Labs, the Security Research Division of Network
9  * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
10  * ("CBOSS"), as part of the DARPA CHATS research program.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, is permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. The name of the author may not be used to endorse or promote
21  *    products derived from this software without specific prior written
22  *    permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * $FreeBSD: head/lib/libutil/libutil.h 247919 2013-03-07 19:00:00Z db $
37  */
38 
39 #ifndef _LIBUTIL_H_
40 #define	_LIBUTIL_H_
41 
42 #include <sys/types.h>
43 
44 #ifdef _PWD_H_
45 #define	_PWSCAN_MASTER	0x01
46 #define	_PWSCAN_WARN	0x02
47 #endif
48 
49 #define	PROPERTY_MAX_NAME	64
50 #define	PROPERTY_MAX_VALUE	512
51 
52 /* For properties.c. */
53 typedef struct _property {
54 	struct _property *next;
55 	char	*name;
56 	char	*value;
57 } *properties;
58 
59 /* Avoid pulling in all the include files for no need. */
60 struct in_addr;
61 struct pidfh;
62 struct sockaddr;
63 struct termios;
64 struct winsize;
65 struct utmp;
66 struct utmpx;
67 
68 __BEGIN_DECLS
69 char	*auth_getval(const char *_name);
70 void	login(struct utmp *);
71 void	loginx(const struct utmpx *);
72 int	login_tty(int);
73 int	logout(const char *);
74 int	logoutx(const char *, int, int);
75 void	logwtmp(const char *, const char *, const char *);
76 void	logwtmpx(const char *, const char *, const char *, int, int);
77 void	trimdomain(char *, int);
78 int	flopen(const char *_path, int _flags, ...);
79 int	forkpty(int *_amaster, char *_name,
80 	    struct termios *_termp, struct winsize *_winp);
81 int	dehumanize_number(const char *, int64_t *);
82 void	hexdump(const void *_ptr, int _length, const char *_hdr, int _flags);
83 int	humanize_number(char *_buf, size_t _len, int64_t _number,
84 	    const char *_suffix, int _scale, int _flags);
85 int	humanize_unsigned(char *buf, size_t len, uint64_t bytes,
86 					const char *suffix, int divisor);
87 int	format_bytes(char *buf, size_t len, uint64_t bytes);
88 const char *uu_lockerr(int);
89 int	uu_lock(const char *);
90 int	uu_unlock(const char *);
91 int	uu_lock_txfr(const char *, pid_t);
92 int	_secure_path(const char *, uid_t, gid_t);
93 int	openpty(int *_amaster, int *_aslave, char *_name,
94 	    struct termios *_termp, struct winsize *_winp);
95 int	pidfile_close(struct pidfh *_pfh);
96 int	pidfile_fileno(const struct pidfh *_pfh);
97 struct pidfh *
98 	pidfile_open(const char *_path, mode_t _mode, pid_t *_pidptr);
99 int	pidfile_remove(struct pidfh *_pfh);
100 int	pidfile_write(struct pidfh *_pfh);
101 void	properties_free(properties _list);
102 char	*property_find(properties _list, const char *_name);
103 properties
104 	properties_read(int fd);
105 int	realhostname(char *, size_t, const struct in_addr *);
106 int	realhostname_sa(char *, size_t, struct sockaddr *, int);
107 #ifdef _STDIO_H_	/* avoid adding new includes */
108 char   *fparseln(FILE *, size_t *, size_t *, const char[3], int);
109 #endif
110 
111 #ifdef _PWD_H_
112 int	pw_copy(int _ffd, int _tfd, const struct passwd *_pw,
113 	    struct passwd *_old_pw);
114 struct passwd
115 	*pw_dup(const struct passwd *_pw);
116 int	pw_edit(int _notsetuid);
117 int	pw_equal(const struct passwd *_pw1, const struct passwd *_pw2);
118 void	pw_fini(void);
119 int	pw_init(const char *_dir, const char *_master);
120 char	*pw_make(const struct passwd *_pw);
121 char	*pw_make_v7(const struct passwd *_pw);
122 int	pw_mkdb(const char *_user);
123 int	pw_lock(void);
124 struct passwd *
125 	pw_scan(const char *_line, int _flags);
126 const char *
127 	pw_tempname(void);
128 int	pw_tmp(int _mfd);
129 #endif
130 
131 #ifdef _GRP_H_
132 int 	gr_copy(int __ffd, int _tfd, const struct group *_gr,
133 	    struct group *_old_gr);
134 struct group *
135 	gr_dup(const struct group *_gr);
136 struct group *
137 	gr_add(const struct group *_gr, const char *_newmember);
138 int	gr_equal(const struct group *_gr1, const struct group *_gr2);
139 void	gr_fini(void);
140 int	gr_init(const char *_dir, const char *_master);
141 int	gr_lock(void);
142 char	*gr_make(const struct group *_gr);
143 int	gr_mkdb(void);
144 struct group *
145 	gr_scan(const char *_line);
146 int	gr_tmp(int _mdf);
147 #endif
148 
149 /* Error checked functions */
150 void		(*esetfunc(void (*)(int, const char *, ...)))
151 		(int, const char *, ...);
152 size_t		estrlcpy(char *, const char *, size_t);
153 size_t		estrlcat(char *, const char *, size_t);
154 char		*estrdup(const char *);
155 char		*estrndup(const char *, size_t);
156 void		*ecalloc(size_t, size_t);
157 void		*emalloc(size_t);
158 void		*erealloc(void *, size_t);
159 int		easprintf(char ** __restrict, const char * __restrict, ...)
160 		__printflike(2, 3);
161 __END_DECLS
162 
163 /* fparseln(3) */
164 #define	FPARSELN_UNESCESC	0x01
165 #define	FPARSELN_UNESCCONT	0x02
166 #define	FPARSELN_UNESCCOMM	0x04
167 #define	FPARSELN_UNESCREST	0x08
168 #define	FPARSELN_UNESCALL	0x0f
169 
170 /* Flags for hexdump(3). */
171 #define	HD_COLUMN_MASK		0xff
172 #define	HD_DELIM_MASK		0xff00
173 #define	HD_OMIT_COUNT		(1 << 16)
174 #define	HD_OMIT_HEX		(1 << 17)
175 #define	HD_OMIT_CHARS		(1 << 18)
176 
177 /* Values for humanize_number(3)'s flags parameter. */
178 #define	HN_DECIMAL		0x01
179 #define	HN_NOSPACE		0x02
180 #define	HN_B			0x04
181 #define	HN_DIVISOR_1000		0x08
182 #define	HN_IEC_PREFIXES		0x10
183 #define HN_FRACTIONAL		0x20
184 
185 /* Values for humanize_number(3)'s scale parameter. */
186 #define	HN_GETSCALE		0x10
187 #define	HN_AUTOSCALE		0x20
188 
189 /* Return values from realhostname(). */
190 #define	HOSTNAME_FOUND		0
191 #define	HOSTNAME_INCORRECTNAME	1
192 #define	HOSTNAME_INVALIDADDR	2
193 #define	HOSTNAME_INVALIDNAME	3
194 
195 /* Flags for pw_scan(). */
196 #define	PWSCAN_MASTER		0x01
197 #define	PWSCAN_WARN		0x02
198 
199 /* Return values from uu_lock(). */
200 #define	UU_LOCK_INUSE		1
201 #define	UU_LOCK_OK		0
202 #define	UU_LOCK_OPEN_ERR	(-1)
203 #define	UU_LOCK_READ_ERR	(-2)
204 #define	UU_LOCK_CREAT_ERR	(-3)
205 #define	UU_LOCK_WRITE_ERR	(-4)
206 #define	UU_LOCK_LINK_ERR	(-5)
207 #define	UU_LOCK_TRY_ERR		(-6)
208 #define	UU_LOCK_OWNER_ERR	(-7)
209 
210 #endif /* !_LIBUTIL_H_ */
211