#ifndef _UNISTD_H #define _UNISTD_H /* * The header defines constants, macros and functions that * are specific to the Unix/Posix system call interfaces. * * AMENDMENT HISTORY * ~~~~~~~~~~~~~~~~~ * 17 Jun 94 DJW - Added sync() call to those listed. * * 20 Jun 94 DJW - Values used by access() mode changed so that zero * is not a valid setting any more. * * 21 Aug 94 DJW - Added 'const' keyword to definitions of chown(), * link() and rmdir(). * * 03 Sep 94 DJW - Added name hiding definitions for routines that are * called internally within libraries. * * 08 Aug 95 DJW - Changed values associated with F_OK, etc so that F_OK * is zero which is a common Unix assumption. Note that * POSIX states that symbolic names should be used. * Change made at request of Johnathan Hudson * * 20 Sep 95 DJW - Changed return type of alarm() to be signed to allow * for fact that QDOS implementation can return an error. */ #ifndef _SYS_TYPES_H #include #endif /* Values used by access(). POSIX Table 2-6. */ #define F_OK 0 /* test if file exists */ #define X_OK 1 /* test if file is executable */ #define W_OK 2 /* test if file is writable */ #define R_OK 4 /* test if file is readable */ /* Values used for whence in lseek(fd, offset, whence). POSIX Table 2-7. */ #ifndef SEEK_SET #define SEEK_SET 0 /* seek from beginning */ #define SEEK_CUR 1 /* seek from here */ #define SEEK_END 2 /* seek from end */ #endif /* This value is required by POSIX Table 2-8. */ #define _POSIX_VERSION 198808L /* which standard is being conformed to */ /* These three definitions are required by POSIX Sec. 8.2.1.2. */ #define STDIN_FILENO 0 /* file descriptor for stdin */ #define STDOUT_FILENO 1 /* file descriptor for stdout */ #define STDERR_FILENO 2 /* file descriptor for stderr */ /* NULL must be defined in according to POSIX Sec. 2.8.1. */ #ifndef NULL #define NULL ((void *)0) #endif /* The following relate to configurable system variables. POSIX Table 4-2. */ #define _SC_ARG_MAX 1 #define _SC_CHILD_MAX 2 #define _SC_CLOCKS_PER_SEC 3 #define _SC_NGROUPS_MAX 4 #define _SC_OPEN_MAX 5 #define _SC_JOB_CONTROL 6 #define _SC_SAVED_IDS 7 #define _SC_VERSION 8 /* The following relate to configurable pathname variables. POSIX Table 5-2. */ #define _PC_LINK_MAX 1 /* link count */ #define _PC_MAX_CANON 2 /* size of the canonical input queue */ #define _PC_MAX_INPUT 3 /* type-ahead buffer size */ #define _PC_NAME_MAX 4 /* file name size */ #define _PC_PATH_MAX 5 /* pathname size */ #define _PC_PIPE_BUF 6 /* pipe size */ #define _PC_NO_TRUNC 7 /* treatment of long name components */ #define _PC_VDISABLE 8 /* tty disable */ #define _PC_CHOWN_RESTRICTED 9 /* chown restricted or not */ /* POSIX defines several options that may be implemented or not, at the * implementer's whim. This implementer has made the following choices: * * _POSIX_JOB_CONTROL not defined: no job control * _POSIX_SAVED_IDS not defined: no saved uid/gid * _POSIX_NO_TRUNC not defined: long path names are truncated * _POSIX_CHOWN_RESTRICTED defined: you can't give away files * _POSIX_VDISABLE defined: tty functions can be disabled */ #define _POSIX_CHOWN_RESTRICTED #define _POSIX_VDISABLE '\t' /* can't set any control char to tab */ /* * Function Prototypes. */ #ifdef __STDC__ #define _P_(params) params #else #define _P_(params) #endif #define environ _environ /* name hiding for ANSI compatibility */ extern char **environ; /* environment pointer */ /* Name hiding definitions */ #define chdir _Chdir #define close _Close #define dup2 _Dup2 #define read _Read #define unlink _Unlink #define write _Write /* Prototypes */ void _exit _P_((int)); int access _P_((char *, int)); /* * The return type of alarm() is normally unsigned. However in * the QDOS implementation it can also return an error code, so * we have changed it to signed. It is not anticipated that this * will cause any serious problems! */ int alarm _P_((unsigned int)); int chdir _P_((char *)); int chown _P_((const char *, uid_t, gid_t)); int close _P_((int)); char * ctermid _P_((char *)); char * cuserid _P_((char *)); int dup _P_((int)); int dup2 _P_((int, int)); int execl _P_((const char *, int *, const char *, ...)); int execlp _P_((const char *, int *, const char *, ...)); int execv _P_((const char *, int *, char * const * )); int execvp _P_((const char *, int *, char * const * )); pid_t forkl _P_((const char *, int *, const char *, ...)); pid_t forklp _P_((const char *, int *, const char *, ...)); pid_t forkv _P_((const char *, int *, char * const *)); pid_t forkvp _P_((const char *, int *, char * const *)); long fpathconf _P_((int, int)); int fsync _P_((int)); int ftruncate _P_((int, off_t)); char * getcwd _P_((char *, int)); gid_t getegid _P_((void)); uid_t geteuid _P_((void)); gid_t getgid _P_((void)); int getgroups _P_((int, gid_t)); char * getlogin _P_((void)); pid_t getpgrp _P_((void)); pid_t getpid _P_((void)); pid_t getppid _P_((void)); uid_t getuid _P_((void)); int isatty _P_((int)); int link _P_((const char *, const char *)); off_t lseek _P_((int, off_t, int)); long pathconf _P_((const char *, int)); int pause _P_((void)); int pipe _P_((int *)); int read _P_((int, void *, unsigned int)); int rmdir _P_((const char *)); int seteuid _P_((int)); int setgid _P_((int)); int setpgid _P_((pid_t, pid_t)); pid_t setsid _P_((void)); int setuid _P_((int)); unsigned sleep _P_((unsigned int)); int stime _P_((const time_t *)); void sync _P_((void)); long sysconf _P_((int)); int truncate _P_((char *, off_t)); char * ttyname _P_((int)); int unlink _P_((const char *)); int write _P_((int, void *, unsigned int)); /** * * Level 1 memory allocation services * (UNIX compatible ) * **/ void * sbrk _P_((int)); void * lsbrk _P_((long)); /* void rbrk _P_((void)); */ /* * The following routines are included in this header file for * documentation. They are standard Unix routines that are not * (at least yet!) implemented in the QDOS libraries. */ char * brk _P_((char *)); char * mktemp _P_((char *)); pid_t tcgetpgrp _P_((int)); int tcsetpgrp _P_((int, pid_t)); /** * * The following routines are specific to the QDOS * implementation of Unix style file descriptors. * (For those available for use see QdosC68_DOC for details) * **/ extern int (*_f_onexit) _P_((int)); /* Vector that can be set by user */ #ifdef __LIBRARY__ /************************************************************************* * * C A U T I O N * ~~~~~~~~~~~~~ * * The remainder of this header contains definitions that are internal * to the way that the C68 libraries have been implemented on QDOS/SMS. * These definitions should not be used by any user program as they are * subject to change without notice. * *************************************************************************/ #endif /* __LIBRARY__ */ #undef _P_ #endif /* _UNISTD_H */