1 /* 2 * Copyright 2004-2008, 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 <sys/types.h> 11 12 13 /* access modes */ 14 #define R_OK 4 15 #define W_OK 2 16 #define X_OK 1 17 #define F_OK 0 18 19 /* standard file descriptors */ 20 #define STDIN_FILENO 0 21 #define STDOUT_FILENO 1 22 #define STDERR_FILENO 2 23 24 /* function arguments needed by lockf() */ 25 #define F_ULOCK 0 /* unlock locked sections */ 26 #define F_LOCK 1 /* lock a section for exclusive use */ 27 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 28 #define F_TEST 3 /* test a section for locks by other processes */ 29 30 /* POSIX version support */ 31 #define _POSIX_VERSION (199009L) /* TODO: Update! */ 32 33 #define _POSIX_CHOWN_RESTRICTED 1 34 #define _POSIX_JOB_CONTROL 1 35 #define _POSIX_NO_TRUNC 0 36 #define _POSIX_SAVED_IDS 1 37 #define _POSIX_VDISABLE ((char) - 2) /* TODO: Check this! */ 38 #define _POSIX_SEMAPHORES (200112L) 39 #define _POSIX_THREADS (200112L) 40 41 /* pathconf() constants */ 42 /* BeOS supported values, do not touch */ 43 #define _PC_CHOWN_RESTRICTED 1 44 #define _PC_MAX_CANON 2 45 #define _PC_MAX_INPUT 3 46 #define _PC_NAME_MAX 4 47 #define _PC_NO_TRUNC 5 48 #define _PC_PATH_MAX 6 49 #define _PC_PIPE_BUF 7 50 #define _PC_VDISABLE 8 51 #define _PC_LINK_MAX 25 52 /* new values */ 53 /* TODO: reorder */ 54 #define _PC_SYNC_IO 26 55 #define _PC_ASYNC_IO 27 56 #define _PC_PRIO_IO 28 57 #define _PC_SOCK_MAXBUF 29 58 #define _PC_FILESIZEBITS 30 59 #define _PC_REC_INCR_XFER_SIZE 31 60 #define _PC_REC_MAX_XFER_SIZE 32 61 #define _PC_REC_MIN_XFER_SIZE 33 62 #define _PC_REC_XFER_ALIGN 34 63 #define _PC_ALLOC_SIZE_MIN 35 64 #define _PC_SYMLINK_MAX 36 65 #define _PC_2_SYMLINKS 37 66 #define _PC_XATTR_EXISTS 38 67 #define _PC_XATTR_ENABLED 39 68 69 /* sysconf() constants */ 70 /* BeOS supported values, do not touch */ 71 #define _SC_ARG_MAX 15 72 #define _SC_CHILD_MAX 16 73 #define _SC_CLK_TCK 17 74 #define _SC_JOB_CONTROL 18 75 #define _SC_NGROUPS_MAX 19 76 #define _SC_OPEN_MAX 20 77 #define _SC_SAVED_IDS 21 78 #define _SC_STREAM_MAX 22 79 #define _SC_TZNAME_MAX 23 80 #define _SC_VERSION 24 81 #define _SC_GETGR_R_SIZE_MAX 25 82 #define _SC_GETPW_R_SIZE_MAX 26 83 #define _SC_PAGE_SIZE 27 84 #define _SC_PAGESIZE _SC_PAGE_SIZE 85 #define _SC_SEM_NSEMS_MAX 28 86 #define _SC_SEM_VALUE_MAX 29 87 #define _SC_SEMAPHORES 30 88 #define _SC_THREADS 31 89 /* TODO: check and reorder */ 90 #define _SC_IOV_MAX 32 91 #define _SC_UIO_MAXIOV _SC_IOV_MAX 92 #define _SC_NPROCESSORS_MAX 33 93 #define _SC_NPROCESSORS_CONF 34 94 #define _SC_NPROCESSORS_ONLN 35 95 #define _SC_CPUID_MAX 36 96 #define _SC_ATEXIT_MAX 37 97 #define _SC_PASS_MAX 39 98 #define _SC_PHYS_PAGES 40 99 #define _SC_AVPHYS_PAGES 41 100 #define _SC_PIPE 42 101 #define _SC_SELECT 43 102 #define _SC_POLL 44 103 104 105 /* confstr() constants */ 106 #define _CS_PATH 1 107 108 /* lseek() constants */ 109 #ifndef SEEK_SET 110 # define SEEK_SET 0 111 #endif 112 #ifndef SEEK_CUR 113 # define SEEK_CUR 1 114 #endif 115 #ifndef SEEK_END 116 # define SEEK_END 2 117 #endif 118 119 120 #ifdef __cplusplus 121 extern "C" { 122 #endif 123 124 /* file functions */ 125 extern int access(const char *path, int accessMode); 126 127 extern int chdir(const char *path); 128 extern int fchdir(int fd); 129 extern char *getcwd(char *buffer, size_t size); 130 131 extern int pipe(int fildes[2]); 132 extern int dup(int fd); 133 extern int dup2(int fd1, int fd2); 134 extern int close(int fd); 135 extern int link(const char *name, const char *new_name); 136 extern int unlink(const char *name); 137 extern int rmdir(const char *path); 138 139 extern ssize_t readlink(const char *path, char *buffer, size_t bufferSize); 140 extern int symlink(const char *from, const char *to); 141 142 extern int ftruncate(int fd, off_t newSize); 143 extern int truncate(const char *path, off_t newSize); 144 extern int ioctl(int fd, unsigned long op, ...); 145 146 extern ssize_t read(int fd, void *buffer, size_t count); 147 extern ssize_t read_pos(int fd, off_t pos, void *buffer, size_t count); 148 extern ssize_t pread(int fd, void *buffer, size_t count, off_t pos); 149 extern ssize_t write(int fd, const void *buffer, size_t count); 150 extern ssize_t write_pos(int fd, off_t pos, const void *buffer,size_t count); 151 extern ssize_t pwrite(int fd, const void *buffer, size_t count, off_t pos); 152 extern off_t lseek(int fd, off_t offset, int whence); 153 154 extern int sync(void); 155 extern int fsync(int fd); 156 157 extern int chown(const char *path, uid_t owner, gid_t group); 158 extern int fchown(int fd, uid_t owner, gid_t group); 159 extern int lchown(const char *path, uid_t owner, gid_t group); 160 161 extern int mknod(const char *name, mode_t mode, dev_t dev); 162 163 extern int getpagesize(void); 164 extern int getdtablesize(void); 165 extern long sysconf(int name); 166 extern long fpathconf(int fd, int name); 167 extern long pathconf(const char *path, int name); 168 extern size_t confstr(int name, char *buf, size_t len); 169 extern int lockf(int fd, int function, off_t size); 170 171 /* process functions */ 172 extern pid_t fork(void); 173 extern pid_t vfork(void); 174 extern int execve(const char *path, char * const argv[], char * const envp[]); 175 extern int execl(const char *path, const char *arg, ...); 176 extern int execv(const char *path, char *const *argv); 177 extern int execlp(const char *file, const char *arg, ...); 178 extern int execle(const char *path, const char *arg , ... /*, char **envp */); 179 extern int exect(const char *path, char *const *argv); 180 extern int execvp(const char *file, char *const *argv); 181 182 extern void _exit(int status); 183 184 extern pid_t tcgetpgrp(int fd); 185 extern int tcsetpgrp(int fd, pid_t pgrpid); 186 extern void *sbrk(long incr); 187 188 extern unsigned int alarm(unsigned int seconds); 189 extern useconds_t ualarm(useconds_t microSeconds, useconds_t interval); 190 extern unsigned int sleep(unsigned int seconds); 191 extern int usleep(unsigned int microSeconds); 192 extern clock_t clock(void); 193 extern int pause(void); 194 195 /* process */ 196 extern pid_t getpid(void); 197 extern pid_t getpgrp(void); 198 extern pid_t getppid(void); 199 extern pid_t getsid(pid_t pid); 200 extern pid_t getpgid(pid_t pid); 201 202 extern pid_t setsid(void); 203 extern int setpgid(pid_t pid, pid_t pgid); 204 extern pid_t setpgrp(void); 205 206 extern int chroot(const char *path); 207 208 /* access permissions */ 209 extern gid_t getegid(void); 210 extern uid_t geteuid(void); 211 extern gid_t getgid(void); 212 extern uid_t getuid(void); 213 214 extern int setgid(gid_t gid); 215 extern int setuid(uid_t uid); 216 extern int setegid(gid_t gid); 217 extern int seteuid(uid_t uid); 218 extern int setregid(gid_t rgid, gid_t egid); 219 extern int setreuid(uid_t ruid, uid_t euid); 220 221 extern int getgrouplist(const char* user, gid_t baseGroup, 222 gid_t* groupList, int* groupCount); 223 extern int getgroups(int groupCount, gid_t groupList[]); 224 extern int initgroups(const char* user, gid_t baseGroup); 225 extern int setgroups(int groupCount, const gid_t* groupList); 226 227 extern char *getlogin(void); 228 extern int getlogin_r(char *name, size_t nameSize); 229 230 /* host name */ 231 extern int sethostname(const char *hostName, size_t nameSize); 232 extern int gethostname(char *hostName, size_t nameSize); 233 234 /* tty */ 235 extern int isatty(int fd); 236 extern char *ttyname(int fd); 237 extern int ttyname_r(int fd, char *buffer, size_t bufferSize); 238 239 /* misc */ 240 extern char *crypt(const char *key, const char *salt); 241 extern void encrypt(char block[64], int edflag); 242 extern int getopt(int argc, char *const *argv, const char *shortOpts); 243 extern void swab(const void *src, void *dest, ssize_t nbytes); 244 245 /* getopt() related external variables */ 246 extern char *optarg; 247 extern int optind, opterr, optopt; 248 249 /* ToDo: should be moved to stdlib.h */ 250 extern char **environ; 251 252 #ifdef __cplusplus 253 } 254 #endif 255 256 #endif /* _UNISTD_H_ */ 257