1 /* 2 * Copyright 2004-2015 Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _UNISTD_H_ 6 #define _UNISTD_H_ 7 8 9 #include <null.h> 10 #include <stdint.h> 11 #include <sys/types.h> 12 13 14 /* access modes */ 15 #define R_OK 4 16 #define W_OK 2 17 #define X_OK 1 18 #define F_OK 0 19 20 /* standard file descriptors */ 21 #define STDIN_FILENO 0 22 #define STDOUT_FILENO 1 23 #define STDERR_FILENO 2 24 25 /* function arguments needed by lockf() */ 26 #define F_ULOCK 0 /* unlock locked sections */ 27 #define F_LOCK 1 /* lock a section for exclusive use */ 28 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 29 #define F_TEST 3 /* test a section for locks by other processes */ 30 31 /* POSIX version support */ 32 #define _POSIX_VERSION (199009L) /* TODO: Update! */ 33 34 #define _POSIX_CHOWN_RESTRICTED 1 35 #define _POSIX_JOB_CONTROL 1 36 #define _POSIX_NO_TRUNC 0 37 #define _POSIX_SAVED_IDS 1 38 #define _POSIX_VDISABLE ((unsigned char)-2) 39 /* TODO: Check this! */ 40 /* TODO: Update these to the current POSIX version! Ideally after actually 41 supporting the features. */ 42 #define _POSIX_SEMAPHORES (200112L) 43 #define _POSIX_THREADS (200112L) 44 #define _POSIX_MAPPED_FILES (200809L) 45 #define _POSIX_THREAD_PROCESS_SHARED (200809L) 46 #define _POSIX_THREAD_ATTR_STACKADDR (-1) /* currently unsupported */ 47 #define _POSIX_THREAD_ATTR_STACKSIZE (200809L) 48 #define _POSIX_THREAD_PRIORITY_SCHEDULING (-1) /* currently unsupported */ 49 #define _POSIX_REALTIME_SIGNALS (200809L) 50 #define _POSIX_MEMORY_PROTECTION (200809L) 51 #define _POSIX_MONOTONIC_CLOCK (200809L) 52 #define _POSIX_TIMERS (200809L) 53 #define _POSIX_CPUTIME (200809L) 54 #define _POSIX_THREAD_CPUTIME (200809L) 55 56 57 /* pathconf() constants */ 58 /* BeOS supported values, do not touch */ 59 #define _PC_CHOWN_RESTRICTED 1 60 #define _PC_MAX_CANON 2 61 #define _PC_MAX_INPUT 3 62 #define _PC_NAME_MAX 4 63 #define _PC_NO_TRUNC 5 64 #define _PC_PATH_MAX 6 65 #define _PC_PIPE_BUF 7 66 #define _PC_VDISABLE 8 67 #define _PC_LINK_MAX 25 68 /* new values */ 69 #define _PC_SYNC_IO 26 70 #define _PC_ASYNC_IO 27 71 #define _PC_PRIO_IO 28 72 #define _PC_SOCK_MAXBUF 29 73 #define _PC_FILESIZEBITS 30 74 #define _PC_REC_INCR_XFER_SIZE 31 75 #define _PC_REC_MAX_XFER_SIZE 32 76 #define _PC_REC_MIN_XFER_SIZE 33 77 #define _PC_REC_XFER_ALIGN 34 78 #define _PC_ALLOC_SIZE_MIN 35 79 #define _PC_SYMLINK_MAX 36 80 #define _PC_2_SYMLINKS 37 81 #define _PC_XATTR_EXISTS 38 82 #define _PC_XATTR_ENABLED 39 83 84 /* sysconf() constants */ 85 /* BeOS supported values, do not touch */ 86 #define _SC_ARG_MAX 15 87 #define _SC_CHILD_MAX 16 88 #define _SC_CLK_TCK 17 89 #define _SC_JOB_CONTROL 18 90 #define _SC_NGROUPS_MAX 19 91 #define _SC_OPEN_MAX 20 92 #define _SC_SAVED_IDS 21 93 #define _SC_STREAM_MAX 22 94 #define _SC_TZNAME_MAX 23 95 #define _SC_VERSION 24 96 /* new values */ 97 #define _SC_GETGR_R_SIZE_MAX 25 98 #define _SC_GETPW_R_SIZE_MAX 26 99 #define _SC_PAGE_SIZE 27 100 #define _SC_PAGESIZE _SC_PAGE_SIZE 101 #define _SC_SEM_NSEMS_MAX 28 102 #define _SC_SEM_VALUE_MAX 29 103 #define _SC_SEMAPHORES 30 104 #define _SC_THREADS 31 105 /* TODO: check */ 106 #define _SC_IOV_MAX 32 107 #define _SC_UIO_MAXIOV _SC_IOV_MAX 108 #define _SC_NPROCESSORS_CONF 34 109 #define _SC_NPROCESSORS_ONLN 35 110 #define _SC_ATEXIT_MAX 37 111 #define _SC_PASS_MAX 39 112 #define _SC_PHYS_PAGES 40 113 #define _SC_AVPHYS_PAGES 41 114 #define _SC_PIPE 42 115 #define _SC_SELECT 43 116 #define _SC_POLL 44 117 #define _SC_MAPPED_FILES 45 118 #define _SC_THREAD_PROCESS_SHARED 46 119 #define _SC_THREAD_STACK_MIN 47 120 #define _SC_THREAD_ATTR_STACKADDR 48 121 #define _SC_THREAD_ATTR_STACKSIZE 49 122 #define _SC_THREAD_PRIORITY_SCHEDULING 50 123 #define _SC_REALTIME_SIGNALS 51 124 #define _SC_MEMORY_PROTECTION 52 125 #define _SC_SIGQUEUE_MAX 53 126 #define _SC_RTSIG_MAX 54 127 #define _SC_MONOTONIC_CLOCK 55 128 #define _SC_DELAYTIMER_MAX 56 129 #define _SC_TIMER_MAX 57 130 #define _SC_TIMERS 58 131 #define _SC_CPUTIME 59 132 #define _SC_THREAD_CPUTIME 60 133 134 135 /* confstr() constants */ 136 #define _CS_PATH 1 137 138 /* lseek() constants */ 139 #ifndef SEEK_SET 140 # define SEEK_SET 0 141 #endif 142 #ifndef SEEK_CUR 143 # define SEEK_CUR 1 144 #endif 145 #ifndef SEEK_END 146 # define SEEK_END 2 147 #endif 148 149 150 #ifdef __cplusplus 151 extern "C" { 152 #endif 153 154 /* file functions */ 155 extern int access(const char *path, int accessMode); 156 extern int faccessat(int fd, const char *path, int accessMode, int flag); 157 158 extern int chdir(const char *path); 159 extern int fchdir(int fd); 160 extern char *getcwd(char *buffer, size_t size); 161 162 extern int pipe(int fildes[2]); 163 extern int dup(int fd); 164 extern int dup2(int fd1, int fd2); 165 extern int close(int fd); 166 extern int link(const char *toPath, const char *path); 167 extern int linkat(int toFD, const char *toPath, int pathFD, 168 const char *path, int flag); 169 extern int unlink(const char *name); 170 extern int unlinkat(int fd, const char *path, int flag); 171 extern int rmdir(const char *path); 172 173 extern ssize_t readlink(const char *path, char *buffer, size_t bufferSize); 174 extern ssize_t readlinkat(int fd, const char *path, char *buffer, 175 size_t bufferSize); 176 extern int symlink(const char *toPath, const char *symlinkPath); 177 extern int symlinkat(const char *toPath, int fd, const char *symlinkPath); 178 179 extern int ftruncate(int fd, off_t newSize); 180 extern int truncate(const char *path, off_t newSize); 181 extern int ioctl(int fd, unsigned long op, ...); 182 183 extern ssize_t read(int fd, void *buffer, size_t count); 184 extern ssize_t read_pos(int fd, off_t pos, void *buffer, size_t count); 185 extern ssize_t pread(int fd, void *buffer, size_t count, off_t pos); 186 extern ssize_t write(int fd, const void *buffer, size_t count); 187 extern ssize_t write_pos(int fd, off_t pos, const void *buffer,size_t count); 188 extern ssize_t pwrite(int fd, const void *buffer, size_t count, off_t pos); 189 extern off_t lseek(int fd, off_t offset, int whence); 190 191 extern void sync(void); 192 extern int fsync(int fd); 193 194 extern int chown(const char *path, uid_t owner, gid_t group); 195 extern int fchown(int fd, uid_t owner, gid_t group); 196 extern int lchown(const char *path, uid_t owner, gid_t group); 197 extern int fchownat(int fd, const char *path, uid_t owner, gid_t group, 198 int flag); 199 200 extern int getpagesize(void); 201 extern int getdtablesize(void); 202 extern long sysconf(int name); 203 extern long fpathconf(int fd, int name); 204 extern long pathconf(const char *path, int name); 205 extern size_t confstr(int name, char *buf, size_t len); 206 extern int lockf(int fd, int function, off_t size); 207 208 /* process functions */ 209 extern pid_t fork(void); 210 extern pid_t vfork(void); 211 extern int execve(const char *path, char * const argv[], 212 char *const environment[]); 213 extern int execl(const char *path, const char *arg, ...); 214 extern int execv(const char *path, char *const argv[]); 215 extern int execlp(const char *file, const char *arg, ...); 216 extern int execle(const char *path, const char *arg , ... /*, char **envp */); 217 extern int execvp(const char *file, char *const argv[]); 218 extern int execvpe(const char *file, char *const argv[], 219 char *const environment[]); 220 221 extern void _exit(int status) __attribute__ ((noreturn)); 222 223 extern pid_t tcgetpgrp(int fd); 224 extern int tcsetpgrp(int fd, pid_t pgrpid); 225 226 extern int brk(void *addr); 227 extern void *sbrk(intptr_t increment); 228 229 extern unsigned int alarm(unsigned int seconds); 230 extern useconds_t ualarm(useconds_t microSeconds, useconds_t interval); 231 extern unsigned int sleep(unsigned int seconds); 232 extern int usleep(unsigned int microSeconds); 233 extern int pause(void); 234 235 /* process */ 236 extern pid_t getpid(void); 237 extern pid_t getpgrp(void); 238 extern pid_t getppid(void); 239 extern pid_t getsid(pid_t pid); 240 extern pid_t getpgid(pid_t pid); 241 242 extern pid_t setsid(void); 243 extern int setpgid(pid_t pid, pid_t pgid); 244 extern pid_t setpgrp(void); 245 246 extern int chroot(const char *path); 247 248 /* access permissions */ 249 extern gid_t getegid(void); 250 extern uid_t geteuid(void); 251 extern gid_t getgid(void); 252 extern uid_t getuid(void); 253 254 extern int setgid(gid_t gid); 255 extern int setuid(uid_t uid); 256 extern int setegid(gid_t gid); 257 extern int seteuid(uid_t uid); 258 extern int setregid(gid_t rgid, gid_t egid); 259 extern int setreuid(uid_t ruid, uid_t euid); 260 261 extern int getgrouplist(const char* user, gid_t baseGroup, 262 gid_t* groupList, int* groupCount); 263 extern int getgroups(int groupCount, gid_t groupList[]); 264 extern int initgroups(const char* user, gid_t baseGroup); 265 extern int setgroups(int groupCount, const gid_t* groupList); 266 267 extern char *getlogin(void); 268 extern int getlogin_r(char *name, size_t nameSize); 269 270 /* host name */ 271 extern int sethostname(const char *hostName, size_t nameSize); 272 extern int gethostname(char *hostName, size_t nameSize); 273 274 /* tty */ 275 extern int isatty(int fd); 276 extern char *ttyname(int fd); 277 extern int ttyname_r(int fd, char *buffer, size_t bufferSize); 278 279 /* misc */ 280 extern char *crypt(const char *key, const char *salt); 281 extern void encrypt(char block[64], int edflag); 282 extern int getopt(int argc, char *const *argv, const char *shortOpts); 283 extern void swab(const void *src, void *dest, ssize_t nbytes); 284 285 /* getopt() related external variables */ 286 extern char *optarg; 287 extern int optind, opterr, optopt; 288 289 #ifdef __cplusplus 290 } 291 #endif 292 293 #endif /* _UNISTD_H_ */ 294