1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
|
/*
* Copyright (c) 1996, 1998-2005, 2008
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#ifndef _SUDO_COMPAT_H
#define _SUDO_COMPAT_H
/*
* Macros that may be missing on some Operating Systems
*/
/* Deal with ANSI stuff reasonably. */
#ifndef __P
# if defined (__cplusplus) || defined (__STDC__)
# define __P(args) args
# else
# define __P(args) ()
# endif
#endif /* __P */
/* Define away __attribute__ for non-gcc or old gcc */
#if !defined(__GNUC__) || __GNUC__ < 2 || __GNUC__ == 2 && __GNUC_MINOR__ < 5
# define __attribute__(x)
#endif
/* For silencing gcc warnings about rcsids */
#ifndef __unused
# if defined(__GNUC__) && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ > 7)
# define __unused __attribute__((__unused__))
# else
# define __unused
# endif
#endif
/* For catching format string mismatches */
#ifndef __printflike
# if defined(__GNUC__) && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7)
# define __printflike(f, v) __attribute__((__format__ (__printf__, f, v)))
# else
# define __printflike(f, v)
# endif
#endif
/*
* Some systems lack full limit definitions.
*/
#ifndef OPEN_MAX
# define OPEN_MAX 256
#endif
#ifndef INT_MAX
# define INT_MAX 0x7fffffff
#endif
#ifndef PATH_MAX
# ifdef MAXPATHLEN
# define PATH_MAX MAXPATHLEN
# else
# ifdef _POSIX_PATH_MAX
# define PATH_MAX _POSIX_PATH_MAX
# else
# define PATH_MAX 1024
# endif
# endif
#endif
#ifndef MAXHOSTNAMELEN
# define MAXHOSTNAMELEN 64
#endif
/*
* Posix versions for those without...
*/
#ifndef _S_IFMT
# define _S_IFMT S_IFMT
#endif /* _S_IFMT */
#ifndef _S_IFREG
# define _S_IFREG S_IFREG
#endif /* _S_IFREG */
#ifndef _S_IFDIR
# define _S_IFDIR S_IFDIR
#endif /* _S_IFDIR */
#ifndef _S_IFLNK
# define _S_IFLNK S_IFLNK
#endif /* _S_IFLNK */
#ifndef S_ISREG
# define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
#endif /* S_ISREG */
#ifndef S_ISDIR
# define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
#endif /* S_ISDIR */
/*
* Some OS's may not have this.
*/
#ifndef S_IRWXU
# define S_IRWXU 0000700 /* rwx for owner */
#endif /* S_IRWXU */
/*
* These should be defined in <unistd.h> but not everyone has them.
*/
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif
/*
* These should be defined in <unistd.h> but not everyone has them.
*/
#ifndef SEEK_SET
# define SEEK_SET 0
#endif
#ifndef SEEK_CUR
# define SEEK_CUR 1
#endif
#ifndef SEEK_END
# define SEEK_END 2
#endif
/*
* BSD defines these in <sys/param.h> but others may not.
*/
#ifndef MIN
# define MIN(a,b) (((a)<(b))?(a):(b))
#endif
#ifndef MAX
# define MAX(a,b) (((a)>(b))?(a):(b))
#endif
/*
* Simple isblank() macro and function for systems without it.
*/
#ifndef HAVE_ISBLANK
int isblank __P((int));
# define isblank(_x) ((_x) == ' ' || (_x) == '\t')
#endif
/*
* Old BSD systems lack strchr(), strrchr(), memset() and memcpy()
*/
#if !defined(HAVE_STRCHR) && !defined(strchr)
# define strchr(_s, _c) index(_s, _c)
#endif
#if !defined(HAVE_STRRCHR) && !defined(strrchr)
# define strrchr(_s, _c) rindex(_s, _c)
#endif
#if !defined(HAVE_MEMCPY) && !defined(memcpy)
# define memcpy(_d, _s, _n) (bcopy(_s, _d, _n))
#endif
#if !defined(HAVE_MEMSET) && !defined(memset)
# define memset(_s, _x, _n) (bzero(_s, _n))
#endif
/*
* NCR's SVr4 has _innetgr(3) instead of innetgr(3) for some reason.
*/
#ifdef HAVE__INNETGR
# define innetgr(n, h, u, d) (_innetgr(n, h, u, d))
# define HAVE_INNETGR 1
#endif /* HAVE__INNETGR */
/*
* On POSIX systems, O_NOCTTY is the default so some OS's may lack this define.
*/
#ifndef O_NOCTTY
# define O_NOCTTY 0
#endif /* O_NOCTTY */
/*
* Emulate POSIX signals via sigvec(2)
*/
#ifndef HAVE_SIGACTION
# define SA_ONSTACK SV_ONSTACK
# define SA_RESTART SV_INTERRUPT /* opposite effect */
# define SA_RESETHAND SV_RESETHAND
# define sa_handler sv_handler
# define sa_mask sv_mask
# define sa_flags sv_flags
typedef struct sigvec sigaction_t;
typedef int sigset_t;
int sigaction __P((int sig, const sigaction_t *act, sigaction_t *oact));
int sigemptyset __P((sigset_t *));
int sigfillset __P((sigset_t *));
int sigaddset __P((sigset_t *, int));
int sigdelset __P((sigset_t *, int));
int sigismember __P((sigset_t *, int));
int sigprocmask __P((int, const sigset_t *, sigset_t *));
#endif
/*
* Extra sugar for POSIX signals to deal with the above emulation
* as well as the fact that SunOS has a SA_INTERRUPT flag.
*/
#ifdef HAVE_SIGACTION
# ifndef HAVE_SIGACTION_T
typedef struct sigaction sigaction_t;
# endif
# ifndef SA_INTERRUPT
# define SA_INTERRUPT 0
# endif
# ifndef SA_RESTART
# define SA_RESTART 0
# endif
#endif
/*
* If dirfd() does not exists, hopefully dd_fd does.
*/
#if !defined(HAVE_DIRFD) && defined(HAVE_DD_FD)
# define dirfd(_d) ((_d)->dd_fd)
# define HAVE_DIRFD
#endif
/*
* Define futimes() in terms of futimesat() if needed.
*/
#if !defined(HAVE_FUTIMES) && defined(HAVE_FUTIMESAT)
# define futimes(_f, _tv) futimesat(_f, NULL, _tv)
# define HAVE_FUTIMES
#endif
/*
* If we lack getprogname(), emulate with __progname if possible.
* Otherwise, add a prototype for use with our own getprogname.c.
*/
#ifndef HAVE_GETPROGNAME
# ifdef HAVE___PROGNAME
extern const char *__progname;
# define getprogname() (__progname)
# else
const char *getprogname __P((void));
#endif /* HAVE___PROGNAME */
#endif /* !HAVE_GETPROGNAME */
#ifndef timespecclear
# define timespecclear(ts) (ts)->tv_sec = (ts)->tv_nsec = 0
#endif
#ifndef timespecisset
# define timespecisset(ts) ((ts)->tv_sec || (ts)->tv_nsec)
#endif
#ifndef timespecsub
# define timespecsub(minuend, subrahend, difference) \
do { \
(difference)->tv_sec = (minuend)->tv_sec - (subrahend)->tv_sec; \
(difference)->tv_nsec = (minuend)->tv_nsec - (subrahend)->tv_nsec; \
if ((difference)->tv_nsec < 0) { \
(difference)->tv_nsec += 1000000000L; \
(difference)->tv_sec--; \
} \
} while (0)
#endif
#endif /* _SUDO_COMPAT_H */
|
