1 /* $NetBSD: unistd.h,v 1.116 2008/04/28 20:22:54 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Klaus Klein. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1991, 1993, 1994 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)unistd.h 8.12 (Berkeley) 4/27/95 61 */ 62 63 #ifndef _UNISTD_H_ 64 #define _UNISTD_H_ 65 66 #include <machine/ansi.h> 67 #include <machine/int_types.h> 68 #include <sys/cdefs.h> 69 #include <sys/featuretest.h> 70 #include <sys/types.h> 71 #include <sys/unistd.h> 72 73 74 /* 75 * IEEE Std 1003.1-90 76 */ 77 #define STDIN_FILENO 0 /* standard input file descriptor */ 78 #define STDOUT_FILENO 1 /* standard output file descriptor */ 79 #define STDERR_FILENO 2 /* standard error file descriptor */ 80 81 #include <sys/null.h> 82 83 __BEGIN_DECLS 84 __dead void _exit(int); 85 int access(const char *, int); 86 unsigned int alarm(unsigned int); 87 int chdir(const char *); 88 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) 89 int chown(const char *, uid_t, gid_t) __RENAME(__posix_chown); 90 #else 91 int chown(const char *, uid_t, gid_t); 92 #endif /* defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) */ 93 int close(int); 94 size_t confstr(int, char *, size_t); 95 #ifndef __CUSERID_DECLARED 96 #define __CUSERID_DECLARED 97 /* also declared in stdio.h */ 98 char *cuserid(char *); /* obsolete */ 99 #endif /* __CUSERID_DECLARED */ 100 int dup(int); 101 int dup2(int, int); 102 int execl(const char *, const char *, ...); 103 int execle(const char *, const char *, ...); 104 int execlp(const char *, const char *, ...); 105 int execv(const char *, char * const *); 106 int execve(const char *, char * const *, char * const *); 107 int execvp(const char *, char * const *); 108 pid_t fork(void); 109 long fpathconf(int, int); 110 char *getcwd(char *, size_t); 111 gid_t getegid(void); 112 uid_t geteuid(void); 113 gid_t getgid(void); 114 int getgroups(int, gid_t []); 115 __aconst char *getlogin(void); 116 pid_t getpgrp(void); 117 pid_t getpid(void); 118 pid_t getppid(void); 119 uid_t getuid(void); 120 int isatty(int); 121 int link(const char *, const char *); 122 long pathconf(const char *, int); 123 int pause(void); 124 int pipe(int *); 125 ssize_t read(int, void *, size_t); 126 int rmdir(const char *); 127 int setgid(gid_t); 128 int setpgid(pid_t, pid_t); 129 pid_t setsid(void); 130 int setuid(uid_t); 131 unsigned int sleep(unsigned int); 132 long sysconf(int); 133 pid_t tcgetpgrp(int); 134 int tcsetpgrp(int, pid_t); 135 __aconst char *ttyname(int); 136 int unlink(const char *); 137 ssize_t write(int, const void *, size_t); 138 139 140 /* 141 * IEEE Std 1003.2-92, adopted in X/Open Portability Guide Issue 4 and later 142 */ 143 #if (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE) || \ 144 defined(_NETBSD_SOURCE) 145 int getopt(int, char * const [], const char *); 146 147 extern char *optarg; /* getopt(3) external variables */ 148 extern int opterr; 149 extern int optind; 150 extern int optopt; 151 #endif 152 153 /* 154 * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX) 155 */ 156 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \ 157 defined(_NETBSD_SOURCE) 158 int setegid(gid_t); 159 int seteuid(uid_t); 160 #endif 161 162 /* 163 * The following three syscalls are also defined in <sys/types.h> 164 * We protect them against double declarations. 165 */ 166 #ifndef __OFF_T_SYSCALLS_DECLARED 167 #define __OFF_T_SYSCALLS_DECLARED 168 off_t lseek(int, off_t, int); 169 int truncate(const char *, off_t); 170 /* 171 * IEEE Std 1003.1b-93, 172 * also found in X/Open Portability Guide >= Issue 4 Verion 2 173 */ 174 #if (_POSIX_C_SOURCE - 0) >= 199309L || \ 175 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 176 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 177 int ftruncate(int, off_t); 178 #endif 179 #endif /* __OFF_T_SYSCALLS_DECLARED */ 180 181 182 /* 183 * IEEE Std 1003.1b-93, adopted in X/Open CAE Specification Issue 5 Version 2 184 */ 185 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 186 defined(_NETBSD_SOURCE) 187 int fdatasync(int); 188 int fsync(int); 189 #endif 190 191 192 /* 193 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2 194 */ 195 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 196 defined(_REENTRANT) || defined(_NETBSD_SOURCE) 197 int ttyname_r(int, char *, size_t); 198 #endif 199 200 /* 201 * X/Open Portability Guide, all issues 202 */ 203 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 204 int chroot(const char *); 205 int nice(int); 206 #endif 207 208 209 /* 210 * X/Open Portability Guide >= Issue 4 211 */ 212 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 213 __aconst char *crypt(const char *, const char *); 214 int encrypt(char *, int); 215 char *getpass(const char *); 216 pid_t getsid(pid_t); 217 #endif 218 219 220 /* 221 * X/Open Portability Guide >= Issue 4 Version 2 222 */ 223 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 224 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 225 #ifndef intptr_t 226 typedef __intptr_t intptr_t; 227 #define intptr_t __intptr_t 228 #endif 229 230 #define F_ULOCK 0 231 #define F_LOCK 1 232 #define F_TLOCK 2 233 #define F_TEST 3 234 235 int brk(void *); 236 int fchdir(int); 237 #if defined(_XOPEN_SOURCE) 238 int fchown(int, uid_t, gid_t) __RENAME(__posix_fchown); 239 #else 240 int fchown(int, uid_t, gid_t); 241 #endif 242 int getdtablesize(void); 243 long gethostid(void); 244 int gethostname(char *, size_t); 245 __pure int 246 getpagesize(void); /* legacy */ 247 pid_t getpgid(pid_t); 248 #if defined(_XOPEN_SOURCE) 249 int lchown(const char *, uid_t, gid_t) __RENAME(__posix_lchown); 250 #else 251 int lchown(const char *, uid_t, gid_t); 252 #endif 253 int lockf(int, int, off_t); 254 ssize_t readlink(const char * __restrict, char * __restrict, size_t); 255 void *sbrk(intptr_t); 256 /* XXX prototype wrong! */ 257 int setpgrp(pid_t, pid_t); /* obsoleted by setpgid() */ 258 int setregid(gid_t, gid_t); 259 int setreuid(uid_t, uid_t); 260 void swab(const void *, void *, size_t); 261 int symlink(const char *, const char *); 262 void sync(void); 263 useconds_t ualarm(useconds_t, useconds_t); 264 int usleep(useconds_t); 265 #ifndef __LIBC12_SOURCE__ 266 pid_t vfork(void) __RENAME(__vfork14); 267 #endif 268 269 #ifndef __AUDIT__ 270 char *getwd(char *); /* obsoleted by getcwd() */ 271 #endif 272 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 273 274 275 /* 276 * X/Open CAE Specification Issue 5 Version 2 277 */ 278 #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 279 ssize_t pread(int, void *, size_t, off_t); 280 ssize_t pwrite(int, const void *, size_t, off_t); 281 #endif 282 283 284 /* 285 * Implementation-defined extensions 286 */ 287 #if defined(_NETBSD_SOURCE) 288 int acct(const char *); 289 int closefrom(int); 290 int des_cipher(const char *, char *, long, int); 291 int des_setkey(const char *); 292 void endusershell(void); 293 int exect(const char *, char * const *, char * const *); 294 int fchroot(int); 295 int fsync_range(int, int, off_t, off_t); 296 int getdomainname(char *, size_t); 297 int getgrouplist(const char *, gid_t, gid_t *, int *); 298 int getgroupmembership(const char *, gid_t, gid_t *, int, int *); 299 mode_t getmode(const void *, mode_t); 300 int getpeereid(int, uid_t *, gid_t *); 301 int getsubopt(char **, char * const *, char **); 302 __aconst char *getusershell(void); 303 int initgroups(const char *, gid_t); 304 int iruserok(uint32_t, int, const char *, const char *); 305 int issetugid(void); 306 int nfssvc(int, void *); 307 int profil(char *, size_t, u_long, u_int); 308 #ifndef __PSIGNAL_DECLARED 309 #define __PSIGNAL_DECLARED 310 /* also in signal.h */ 311 void psignal(unsigned int, const char *); 312 #endif /* __PSIGNAL_DECLARED */ 313 int rcmd(char **, int, const char *, const char *, const char *, int *); 314 int reboot(int, char *); 315 int revoke(const char *); 316 int rresvport(int *); 317 int ruserok(const char *, int, const char *, const char *); 318 int setdomainname(const char *, size_t); 319 int setgroups(int, const gid_t *); 320 int sethostid(long); 321 int sethostname(const char *, size_t); 322 int setlogin(const char *); 323 void *setmode(const char *); 324 int setrgid(gid_t); 325 int setruid(uid_t); 326 void setusershell(void); 327 void strmode(mode_t, char *); 328 __aconst char *strsignal(int); 329 int swapctl(int, void *, int); 330 int swapon(const char *); /* obsoleted by swapctl() */ 331 int syscall(int, ...); 332 quad_t __syscall(quad_t, ...); 333 int undelete(const char *); 334 335 #if 1 /*INET6*/ 336 int rcmd_af(char **, int, const char *, 337 const char *, const char *, int *, int); 338 int rresvport_af(int *, int); 339 int iruserok_sa(const void *, int, int, const char *, const char *); 340 #endif 341 342 #ifndef __SYS_SIGLIST_DECLARED 343 #define __SYS_SIGLIST_DECLARED 344 /* also in signal.h */ 345 extern const char *const *sys_siglist __RENAME(__sys_siglist14); 346 #endif /* __SYS_SIGLIST_DECLARED */ 347 extern int optreset; /* getopt(3) external variable */ 348 extern char *suboptarg; /* getsubopt(3) external variable */ 349 #endif 350 351 __END_DECLS 352 353 #if _FORTIFY_SOURCE > 0 354 #include <ssp/unistd.h> 355 #endif 356 #endif /* !_UNISTD_H_ */ 357