Do not dereference a null pointer for a malformed line in master.passwd.
[dragonfly.git] / lib / libutil / libutil.h
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1/*
2 * Copyright (c) 1996 Peter Wemm <peter@FreeBSD.org>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, is permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/lib/libutil/libutil.h,v 1.26.2.3 2000/11/22 03:49:49 murray Exp $
748eeed1 27 * $DragonFly: src/lib/libutil/libutil.h,v 1.8 2008/09/14 20:04:59 swildner Exp $
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28 */
29
30#ifndef _LIBUTIL_H_
31#define _LIBUTIL_H_
32
33#include <sys/cdefs.h>
34
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35#ifdef _PWD_H_
36#define _PWSCAN_MASTER 0x01
37#define _PWSCAN_WARN 0x02
38#endif
39
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40#define PROPERTY_MAX_NAME 64
41#define PROPERTY_MAX_VALUE 512
42
43/* for properties.c */
44typedef struct _property {
45 struct _property *next;
46 char *name;
47 char *value;
48} *properties;
49
50/* Avoid pulling in all the include files for no need */
51struct termios;
52struct winsize;
53struct utmp;
54struct in_addr;
c10563f0 55struct sockaddr;
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56
57__BEGIN_DECLS
3997c939 58int flopen(const char *, int, ...);
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59void login(struct utmp *);
60int login_tty(int);
61int logout(const char *);
62void logwtmp(const char *, const char *, const char *);
63void trimdomain(char *, int);
64int openpty(int *, int *, char *, struct termios *, struct winsize *);
65int forkpty(int *, char *, struct termios *, struct winsize *);
748eeed1 66int dehumanize_number(const char *, int64_t *);
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67int humanize_number(char *, size_t, int64_t, const char *, int, int);
68const char *uu_lockerr(int);
69int uu_lock(const char *);
70int uu_unlock(const char *);
71int uu_lock_txfr(const char *, pid_t);
72int _secure_path(const char *, uid_t, gid_t);
b73d5b1a 73int pidfile(const char *);
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74properties properties_read(int fd);
75void properties_free(properties);
76char *property_find(properties, const char *);
77char *auth_getval(const char *);
78int realhostname(char *, size_t, const struct in_addr *);
79int realhostname_sa(char *, size_t, struct sockaddr *, int);
984263bc 80#ifdef _STDIO_H_ /* avoid adding new includes */
c10563f0 81char *fparseln(FILE *, size_t *, size_t *, const char[3], int);
984263bc 82#endif
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83
84#ifdef _PWD_H_
85int __pw_scan(char *, struct passwd *, int);
86int pw_copy(int _ffd, int _tfd, const struct passwd *_pw, struct passwd *_old_pw);
87struct passwd *pw_dup(const struct passwd *_pw);
88int pw_edit(int _notsetuid);
89int pw_equal(const struct passwd *_pw1, const struct passwd *_pw2);
90void pw_fini(void);
91int pw_init(const char *_dir, const char *_master);
92char *pw_make(const struct passwd *_pw);
93int pw_mkdb(const char *_user);
94int pw_lock(void);
95struct passwd *pw_scan(const char *_line, int _flags);
96const char *pw_tempname(void);
97int pw_tmp(int _mfd);
98#endif
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99__END_DECLS
100
101#define UU_LOCK_INUSE (1)
102#define UU_LOCK_OK (0)
103#define UU_LOCK_OPEN_ERR (-1)
104#define UU_LOCK_READ_ERR (-2)
105#define UU_LOCK_CREAT_ERR (-3)
106#define UU_LOCK_WRITE_ERR (-4)
107#define UU_LOCK_LINK_ERR (-5)
108#define UU_LOCK_TRY_ERR (-6)
109#define UU_LOCK_OWNER_ERR (-7)
110
111/* return values from realhostname() */
112#define HOSTNAME_FOUND (0)
113#define HOSTNAME_INCORRECTNAME (1)
114#define HOSTNAME_INVALIDADDR (2)
115#define HOSTNAME_INVALIDNAME (3)
116
117/* fparseln(3) */
118#define FPARSELN_UNESCESC 0x01
119#define FPARSELN_UNESCCONT 0x02
120#define FPARSELN_UNESCCOMM 0x04
121#define FPARSELN_UNESCREST 0x08
122#define FPARSELN_UNESCALL 0x0f
123
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124/* pw_scan() */
125#define PWSCAN_MASTER 0x01
126#define PWSCAN_WARN 0x02
127
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128/* humanize_number(3) */
129#define HN_DECIMAL 0x01
130#define HN_NOSPACE 0x02
131#define HN_B 0x04
132#define HN_DIVISOR_1000 0x08
133#define HN_GETSCALE 0x10
134#define HN_AUTOSCALE 0x20
135
984263bc 136#endif /* !_LIBUTIL_H_ */