Annotation of src/usr.bin/sudo/compat.h, Revision 1.8
1.1 millert 1: /*
1.8 ! millert 2: * Copyright (c) 1996, 1998-2004 Todd C. Miller <Todd.Miller@courtesan.com>
1.1 millert 3: *
1.8 ! millert 4: * Permission to use, copy, modify, and distribute this software for any
! 5: * purpose with or without fee is hereby granted, provided that the above
! 6: * copyright notice and this permission notice appear in all copies.
1.1 millert 7: *
1.8 ! millert 8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 millert 15: *
1.7 millert 16: * Sponsored in part by the Defense Advanced Research Projects
17: * Agency (DARPA) and Air Force Research Laboratory, Air Force
18: * Materiel Command, USAF, under agreement number F39502-99-1-0512.
19: *
1.8 ! millert 20: * $Sudo: compat.h,v 1.80 2004/09/10 16:31:15 millert Exp $
1.1 millert 21: */
22:
23: #ifndef _SUDO_COMPAT_H
24: #define _SUDO_COMPAT_H
25:
26: /*
27: * Macros that may be missing on some Operating Systems
28: */
29:
30: /* Deal with ANSI stuff reasonably. */
31: #ifndef __P
32: # if defined (__cplusplus) || defined (__STDC__)
33: # define __P(args) args
34: # else
35: # define __P(args) ()
36: # endif
37: #endif /* __P */
38:
39: /*
1.8 ! millert 40: * Some systems lack full limit definitions.
1.1 millert 41: */
1.8 ! millert 42: #ifndef OPEN_MAX
! 43: # define OPEN_MAX 256
! 44: #endif
! 45:
! 46: #ifndef INT_MAX
! 47: # define INT_MAX 0x7fffffff
! 48: #endif
! 49:
! 50: #ifndef PATH_MAX
! 51: # ifdef MAXPATHLEN
! 52: # define PATH_MAX MAXPATHLEN
! 53: # else
! 54: # ifdef _POSIX_PATH_MAX
! 55: # define PATH_MAX _POSIX_PATH_MAX
! 56: # else
! 57: # define PATH_MAX 1024
! 58: # endif
! 59: # endif
1.1 millert 60: #endif
61:
62: #ifndef MAXHOSTNAMELEN
63: # define MAXHOSTNAMELEN 64
64: #endif
65:
66: /*
67: * Posix versions for those without...
68: */
69: #ifndef _S_IFMT
70: # define _S_IFMT S_IFMT
71: #endif /* _S_IFMT */
72: #ifndef _S_IFREG
73: # define _S_IFREG S_IFREG
74: #endif /* _S_IFREG */
75: #ifndef _S_IFDIR
76: # define _S_IFDIR S_IFDIR
77: #endif /* _S_IFDIR */
78: #ifndef _S_IFLNK
79: # define _S_IFLNK S_IFLNK
80: #endif /* _S_IFLNK */
81: #ifndef S_ISREG
82: # define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
83: #endif /* S_ISREG */
84: #ifndef S_ISDIR
85: # define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
86: #endif /* S_ISDIR */
87:
88: /*
89: * Some OS's may not have this.
90: */
91: #ifndef S_IRWXU
92: # define S_IRWXU 0000700 /* rwx for owner */
93: #endif /* S_IRWXU */
94:
95: /*
96: * These should be defined in <unistd.h> but not everyone has them.
97: */
98: #ifndef STDIN_FILENO
99: # define STDIN_FILENO 0
100: #endif
101: #ifndef STDOUT_FILENO
102: # define STDOUT_FILENO 1
103: #endif
104: #ifndef STDERR_FILENO
105: # define STDERR_FILENO 2
106: #endif
107:
108: /*
109: * These should be defined in <unistd.h> but not everyone has them.
110: */
111: #ifndef SEEK_SET
112: # define SEEK_SET 0
113: #endif
114: #ifndef SEEK_CUR
115: # define SEEK_CUR 1
116: #endif
117: #ifndef SEEK_END
118: # define SEEK_END 2
119: #endif
120:
121: /*
122: * BSD defines these in <sys/param.h> but others may not.
123: */
124: #ifndef MIN
125: # define MIN(a,b) (((a)<(b))?(a):(b))
126: #endif
127: #ifndef MAX
128: # define MAX(a,b) (((a)>(b))?(a):(b))
129: #endif
130:
131: /*
1.2 millert 132: * Simple isblank() macro for systems without it.
133: */
134: #ifndef HAVE_ISBLANK
135: # define isblank(_x) ((_x) == ' ' || (_x) == '\t')
136: #endif
137:
138: /*
139: * Old BSD systems lack strchr(), strrchr(), memset() and memcpy()
140: */
141: #if !defined(HAVE_STRCHR) && !defined(strchr)
142: # define strchr(_s, _c) index(_s, _c)
143: #endif
144: #if !defined(HAVE_STRRCHR) && !defined(strrchr)
145: # define strrchr(_s, _c) rindex(_s, _c)
146: #endif
147: #if !defined(HAVE_MEMCPY) && !defined(memcpy)
148: # define memcpy(_d, _s, _n) (bcopy(_s, _d, _n))
149: #endif
150: #if !defined(HAVE_MEMSET) && !defined(memset)
151: # define memset(_s, _x, _n) (bzero(_s, _n))
152: #endif
153:
154: /*
155: * NCR's SVr4 has _innetgr(3) instead of innetgr(3) for some reason.
156: */
157: #ifdef HAVE__INNETGR
158: # define innetgr(n, h, u, d) (_innetgr(n, h, u, d))
159: # define HAVE_INNETGR 1
160: #endif /* HAVE__INNETGR */
1.1 millert 161:
162: /*
163: * On POSIX systems, O_NOCTTY is the default so some OS's may lack this define.
164: */
165: #ifndef O_NOCTTY
166: # define O_NOCTTY 0
167: #endif /* O_NOCTTY */
1.2 millert 168:
169: /*
170: * Emulate POSIX signals via sigvec(2)
171: */
172: #ifndef HAVE_SIGACTION
173: # define SA_ONSTACK SV_ONSTACK
174: # define SA_RESTART SV_INTERRUPT /* opposite effect */
175: # define SA_RESETHAND SV_RESETHAND
176: # define sa_handler sv_handler
177: # define sa_mask sv_mask
178: # define sa_flags sv_flags
179: typedef struct sigvec sigaction_t;
180: typedef int sigset_t;
181: int sigaction __P((int sig, const sigaction_t *act, sigaction_t *oact));
182: int sigemptyset __P((sigset_t *));
183: int sigfillset __P((sigset_t *));
184: int sigaddset __P((sigset_t *, int));
185: int sigdelset __P((sigset_t *, int));
186: int sigismember __P((sigset_t *, int));
187: int sigprocmask __P((int, const sigset_t *, sigset_t *));
188: #endif
189:
190: /*
191: * Extra sugar for POSIX signals to deal with the above emulation
192: * as well as the fact that SunOS has a SA_INTERRUPT flag.
193: */
194: #ifdef HAVE_SIGACTION
195: # ifndef HAVE_SIGACTION_T
196: typedef struct sigaction sigaction_t;
197: # endif
1.7 millert 198: # ifndef SA_INTERRUPT
1.2 millert 199: # define SA_INTERRUPT 0
200: # endif
1.7 millert 201: # ifndef SA_RESTART
1.2 millert 202: # define SA_RESTART 0
203: # endif
1.4 millert 204: #endif
205:
206: /*
1.8 ! millert 207: * If dirfd() does not exists, hopefully dd_fd does.
1.4 millert 208: */
1.8 ! millert 209: #if !defined(HAVE_DIRFD) && defined(HAVE_DD_FD)
! 210: # define dirfd(_d) ((_d)->dd_fd)
! 211: # define HAVE_DIRFD
! 212: #endif
! 213:
! 214: /*
! 215: * Define futimes() in terms of futimesat() if needed.
! 216: */
! 217: #if !defined(HAVE_FUTIMES) && defined(HAVE_FUTIMESAT)
! 218: # define futimes(_f, _tv) futimesat(_f, NULL, _tv)
! 219: # define HAVE_FUTIMES
1.2 millert 220: #endif
1.6 millert 221:
222: /*
223: * If we lack getprogname(), emulate with __progname if possible.
224: * Otherwise, add a prototype for use with our own getprogname.c.
225: */
226: #ifndef HAVE_GETPROGNAME
227: # ifdef HAVE___PROGNAME
228: extern const char *__progname;
229: # define getprogname() (__progname)
230: # else
231: const char *getprogname __P((void));
232: #endif /* HAVE___PROGNAME */
233: #endif /* !HAVE_GETPROGNAME */
1.8 ! millert 234:
! 235: #ifndef HAVE_TIMESPEC
! 236: struct timespec {
! 237: time_t tv_sec;
! 238: long tv_nsec;
! 239: };
! 240: #endif /* !HAVE_TIMESPEC */
! 241:
! 242: #ifndef timespecclear
! 243: # define timespecclear(ts) (ts)->tv_sec = (ts)->tv_nsec = 0
! 244: #endif
! 245: #ifndef timespecisset
! 246: # define timespecisset(ts) ((ts)->tv_sec || (ts)->tv_nsec)
! 247: #endif
! 248: #ifndef timespecsub
! 249: # define timespecsub(minuend, subrahend, difference) \
! 250: do { \
! 251: (difference)->tv_sec = (minuend)->tv_sec - (subrahend)->tv_sec; \
! 252: (difference)->tv_nsec = (minuend)->tv_nsec - (subrahend)->tv_nsec; \
! 253: if ((difference)->tv_nsec < 0) { \
! 254: (difference)->tv_nsec += 1000000000L; \
! 255: (difference)->tv_sec--; \
! 256: } \
! 257: } while (0)
! 258: #endif
1.1 millert 259:
260: #endif /* _SUDO_COMPAT_H */
![[BACK]](/icons/back.gif){kind=icon}
Return to compat.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / sudo