From d82fefba560d90000dc474dd9eca10b705385683 Mon Sep 17 00:00:00 2001 From: pvouy64kf <2098717229@qq.com> Date: Sun, 3 Jul 2022 22:53:05 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9unistd.h=E6=96=87=E4=BB=B6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- unistd.h | 278 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 278 insertions(+) create mode 100644 unistd.h diff --git a/unistd.h b/unistd.h new file mode 100644 index 0000000..a3338ce --- /dev/null +++ b/unistd.h @@ -0,0 +1,278 @@ +#ifndef _UNISTD_H +#define _UNISTD_H + +/* ok, this may be a joke, but I'm working on it */ +#define _POSIX_VERSION 198808L + +#define _POSIX_CHOWN_RESTRICTED /* only root can do a chown (I think..) */ +#define _POSIX_NO_TRUNC /* no pathname truncation (but see in kernel) */ +#define _POSIX_VDISABLE '\0' /* character to disable things like ^C */ +/*#define _POSIX_SAVED_IDS */ /* we'll get to this yet */ +/*#define _POSIX_JOB_CONTROL */ /* we aren't there quite yet. Soon hopefully */ + +#define STDIN_FILENO 0 +#define STDOUT_FILENO 1 +#define STDERR_FILENO 2 + +#ifndef NULL +#define NULL ((void *)0) +#endif + +/* access */ +#define F_OK 0 +#define X_OK 1 +#define W_OK 2 +#define R_OK 4 + +/* lseek */ +#define SEEK_SET 0 +#define SEEK_CUR 1 +#define SEEK_END 2 + +/* _SC stands for System Configuration. We don't use them much */ +#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 + +/* more (possibly) configurable things - now pathnames */ +#define _PC_LINK_MAX 1 +#define _PC_MAX_CANON 2 +#define _PC_MAX_INPUT 3 +#define _PC_NAME_MAX 4 +#define _PC_PATH_MAX 5 +#define _PC_PIPE_BUF 6 +#define _PC_NO_TRUNC 7 +#define _PC_VDISABLE 8 +#define _PC_CHOWN_RESTRICTED 9 + +#include +#include +#include +#include + +#ifdef __LIBRARY__ + +#define __NR_setup 0 /* used only by init, to get system going */ +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +#define __NR_waitpid 7 +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +#define __NR_time 13 +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_chown 16 +#define __NR_break 17 +#define __NR_stat 18 +#define __NR_lseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +#define __NR_umount 22 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_ptrace 26 +#define __NR_alarm 27 +#define __NR_fstat 28 +#define __NR_pause 29 +#define __NR_utime 30 +#define __NR_stty 31 +#define __NR_gtty 32 +#define __NR_access 33 +#define __NR_nice 34 +#define __NR_ftime 35 +#define __NR_sync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +#define __NR_prof 44 +#define __NR_brk 45 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_signal 48 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_acct 51 +#define __NR_phys 52 +#define __NR_lock 53 +#define __NR_ioctl 54 +#define __NR_fcntl 55 +#define __NR_mpx 56 +#define __NR_setpgid 57 +#define __NR_ulimit 58 +#define __NR_uname 59 +#define __NR_umask 60 +#define __NR_chroot 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_sigaction 67 +#define __NR_sgetmask 68 +#define __NR_ssetmask 69 +#define __NR_setreuid 70 +#define __NR_setregid 71 +#define __NR_sigsuspend 72 +#define __NR_sigpending 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +#define __NR_getrlimit 76 +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_select 82 +#define __NR_symlink 83 +#define __NR_lstat 84 +#define __NR_readlink 85 +#define __NR_uselib 86 +#define __NR_execve2 87 +#define __NR_getdents 88 +#define __NR_pipe2 89 +#define __NR_sleep 90 +#define __NR_getcwd 91 +#define __NR_create_thread 92 +#define __NR_endthread 93 +#define __NR_syspthread_join 94 + +#define _syscall0(type,name) \ +type name(void) \ +{ \ +long __res; \ +__asm__ volatile ("int $0x80" \ + : "=a" (__res) \ + : "0" (__NR_##name)); \ +if (__res >= 0) \ + return (type) __res; \ +errno = -__res; \ +return -1; \ +} + +#define _syscall1(type,name,atype,a) \ +type name(atype a) \ +{ \ +long __res; \ +__asm__ volatile ("int $0x80" \ + : "=a" (__res) \ + : "0" (__NR_##name),"b" ((long)(a))); \ +if (__res >= 0) \ + return (type) __res; \ +errno = -__res; \ +return -1; \ +} + +#define _syscall2(type,name,atype,a,btype,b) \ +type name(atype a,btype b) \ +{ \ +long __res; \ +__asm__ volatile ("int $0x80" \ + : "=a" (__res) \ + : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b))); \ +if (__res >= 0) \ + return (type) __res; \ +errno = -__res; \ +return -1; \ +} + +#define _syscall3(type,name,atype,a,btype,b,ctype,c) \ +type name(atype a,btype b,ctype c) \ +{ \ +long __res; \ +__asm__ volatile ("int $0x80" \ + : "=a" (__res) \ + : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b)),"d" ((long)(c))); \ +if (__res>=0) \ + return (type) __res; \ +errno=-__res; \ +return -1; \ +} + +#endif /* __LIBRARY__ */ + +extern int errno; + +int access(const char * filename, mode_t mode); +int acct(const char * filename); +int alarm(int sec); +int brk(void * end_data_segment); +void * sbrk(ptrdiff_t increment); +int chdir(const char * filename); +int chmod(const char * filename, mode_t mode); +int chown(const char * filename, uid_t owner, gid_t group); +int chroot(const char * filename); +int close(int fildes); +int creat(const char * filename, mode_t mode); +int dup(int fildes); +int execve(const char * filename, char ** argv, char ** envp); +int execv(const char * pathname, char ** argv); +int execvp(const char * file, char ** argv); +int execl(const char * pathname, char * arg0, ...); +int execlp(const char * file, char * arg0, ...); +int execle(const char * pathname, char * arg0, ...); +volatile void exit(int status); +volatile void _exit(int status); +int fcntl(int fildes, int cmd, ...); +int fork(void); +int getpid(void); +int getuid(void); +int geteuid(void); +int getgid(void); +int getegid(void); +int ioctl(int fildes, int cmd, ...); +int kill(pid_t pid, int signal); +int link(const char * filename1, const char * filename2); +int lseek(int fildes, off_t offset, int origin); +int mknod(const char * filename, mode_t mode, dev_t dev); +int mount(const char * specialfile, const char * dir, int rwflag); +int nice(int val); +int open(const char * filename, int flag, ...); +int pause(void); +int pipe(int * fildes); +int read(int fildes, char * buf, off_t count); +int setpgrp(void); +int setpgid(pid_t pid,pid_t pgid); +int setuid(uid_t uid); +int setgid(gid_t gid); +void (*signal(int sig, void (*fn)(int)))(int); +int stat(const char * filename, struct stat * stat_buf); +int fstat(int fildes, struct stat * stat_buf); +int stime(time_t * tptr); +int sync(void); +time_t time(time_t * tloc); +time_t times(struct tms * tbuf); +int ulimit(int cmd, long limit); +mode_t umask(mode_t mask); +int umount(const char * specialfile); +int uname(struct utsname * name); +int unlink(const char * filename); +int ustat(dev_t dev, struct ustat * ubuf); +int utime(const char * filename, struct utimbuf * times); +pid_t waitpid(pid_t pid,int * wait_stat,int options); +pid_t wait(int * wait_stat); +int write(int fildes, const char * buf, off_t count); +int dup2(int oldfd, int newfd); +int getppid(void); +pid_t getpgrp(void); +pid_t setsid(void); + +#define __always_inline inline __attribute__((always_inline)) + +#endif