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1.1 root 1: #ifndef _UNISTD_H
2: #define _UNISTD_H
3:
4: /* ok, this may be a joke, but I'm working on it */
5: #define _POSIX_VERSION 198808L
6:
7: #define _POSIX_CHOWN_RESTRICTED /* only root can do a chown (I think..) */
8: /* #define _POSIX_NO_TRUNC*/ /* pathname truncation (but see in kernel) */
9: #define _POSIX_VDISABLE '\0' /* character to disable things like ^C */
10: /*#define _POSIX_SAVED_IDS */ /* we'll get to this yet */
11: /*#define _POSIX_JOB_CONTROL */ /* we aren't there quite yet. Soon hopefully */
12:
13: #define STDIN_FILENO 0
14: #define STDOUT_FILENO 1
15: #define STDERR_FILENO 2
16:
17: #ifndef NULL
18: #define NULL ((void *)0)
19: #endif
20:
21: /* access */
22: #define F_OK 0
23: #define X_OK 1
24: #define W_OK 2
25: #define R_OK 4
26:
27: /* lseek */
28: #define SEEK_SET 0
29: #define SEEK_CUR 1
30: #define SEEK_END 2
31:
32: /* _SC stands for System Configuration. We don't use them much */
33: #define _SC_ARG_MAX 1
34: #define _SC_CHILD_MAX 2
35: #define _SC_CLOCKS_PER_SEC 3
36: #define _SC_NGROUPS_MAX 4
37: #define _SC_OPEN_MAX 5
38: #define _SC_JOB_CONTROL 6
39: #define _SC_SAVED_IDS 7
40: #define _SC_VERSION 8
41:
42: /* more (possibly) configurable things - now pathnames */
43: #define _PC_LINK_MAX 1
44: #define _PC_MAX_CANON 2
45: #define _PC_MAX_INPUT 3
46: #define _PC_NAME_MAX 4
47: #define _PC_PATH_MAX 5
48: #define _PC_PIPE_BUF 6
49: #define _PC_NO_TRUNC 7
50: #define _PC_VDISABLE 8
51: #define _PC_CHOWN_RESTRICTED 9
52:
53: #include <sys/stat.h>
54: #include <sys/times.h>
55: #include <sys/utsname.h>
56: #include <utime.h>
57:
58: #ifdef __LIBRARY__
59:
60: #define __NR_setup 0 /* used only by init, to get system going */
61: #define __NR_exit 1
62: #define __NR_fork 2
63: #define __NR_read 3
64: #define __NR_write 4
65: #define __NR_open 5
66: #define __NR_close 6
67: #define __NR_waitpid 7
68: #define __NR_creat 8
69: #define __NR_link 9
70: #define __NR_unlink 10
71: #define __NR_execve 11
72: #define __NR_chdir 12
73: #define __NR_time 13
74: #define __NR_mknod 14
75: #define __NR_chmod 15
76: #define __NR_chown 16
77: #define __NR_break 17
78: #define __NR_stat 18
79: #define __NR_lseek 19
80: #define __NR_getpid 20
81: #define __NR_mount 21
82: #define __NR_umount 22
83: #define __NR_setuid 23
84: #define __NR_getuid 24
85: #define __NR_stime 25
86: #define __NR_ptrace 26
87: #define __NR_alarm 27
88: #define __NR_fstat 28
89: #define __NR_pause 29
90: #define __NR_utime 30
91: #define __NR_stty 31
92: #define __NR_gtty 32
93: #define __NR_access 33
94: #define __NR_nice 34
95: #define __NR_ftime 35
96: #define __NR_sync 36
97: #define __NR_kill 37
98: #define __NR_rename 38
99: #define __NR_mkdir 39
100: #define __NR_rmdir 40
101: #define __NR_dup 41
102: #define __NR_pipe 42
103: #define __NR_times 43
104: #define __NR_prof 44
105: #define __NR_brk 45
106: #define __NR_setgid 46
107: #define __NR_getgid 47
108: #define __NR_signal 48
109: #define __NR_geteuid 49
110: #define __NR_getegid 50
111: #define __NR_acct 51
112: #define __NR_phys 52
113: #define __NR_lock 53
114: #define __NR_ioctl 54
115: #define __NR_fcntl 55
116: #define __NR_mpx 56
117: #define __NR_setpgid 57
118: #define __NR_ulimit 58
119: #define __NR_uname 59
120: #define __NR_umask 60
121: #define __NR_chroot 61
122: #define __NR_ustat 62
123: #define __NR_dup2 63
124: #define __NR_getppid 64
125: #define __NR_getpgrp 65
126: #define __NR_setsid 66
127:
128: #define _syscall0(type,name) \
129: type name(void) \
130: { \
131: type __res; \
132: __asm__ volatile ("int $0x80" \
133: : "=a" (__res) \
134: : "0" (__NR_##name)); \
135: if (__res >= 0) \
136: return __res; \
137: errno = -__res; \
138: return -1; \
139: }
140:
141: #define _syscall1(type,name,atype,a) \
142: type name(atype a) \
143: { \
144: type __res; \
145: __asm__ volatile ("int $0x80" \
146: : "=a" (__res) \
147: : "0" (__NR_##name),"b" (a)); \
148: if (__res >= 0) \
149: return __res; \
150: errno = -__res; \
151: return -1; \
152: }
153:
154: #define _syscall2(type,name,atype,a,btype,b) \
155: type name(atype a,btype b) \
156: { \
157: type __res; \
158: __asm__ volatile ("int $0x80" \
159: : "=a" (__res) \
160: : "0" (__NR_##name),"b" (a),"c" (b)); \
161: if (__res >= 0) \
162: return __res; \
163: errno = -__res; \
164: return -1; \
165: }
166:
167: #define _syscall3(type,name,atype,a,btype,b,ctype,c) \
168: type name(atype a,btype b,ctype c) \
169: { \
170: type __res; \
171: __asm__ volatile ("int $0x80" \
172: : "=a" (__res) \
173: : "0" (__NR_##name),"b" (a),"c" (b),"d" (c)); \
174: if (__res<0) \
175: errno=-__res , __res = -1; \
176: return __res;\
177: }
178:
179: #endif /* __LIBRARY__ */
180:
181: extern int errno;
182:
183: int access(const char * filename, mode_t mode);
184: int acct(const char * filename);
185: int alarm(int sec);
186: int brk(void * end_data_segment);
187: void * sbrk(ptrdiff_t increment);
188: int chdir(const char * filename);
189: int chmod(const char * filename, mode_t mode);
190: int chown(const char * filename, uid_t owner, gid_t group);
191: int chroot(const char * filename);
192: int close(int fildes);
193: int creat(const char * filename, mode_t mode);
194: int dup(int fildes);
195: int execve(const char * filename, char ** argv, char ** envp);
196: int execv(const char * pathname, char ** argv);
197: int execvp(const char * file, char ** argv);
198: int execl(const char * pathname, char * arg0, ...);
199: int execlp(const char * file, char * arg0, ...);
200: int execle(const char * pathname, char * arg0, ...);
201: volatile void exit(int status);
202: volatile void _exit(int status);
203: int fcntl(int fildes, int cmd, ...);
204: int fork(void);
205: int getpid(void);
206: int getuid(void);
207: int geteuid(void);
208: int getgid(void);
209: int getegid(void);
210: int ioctl(int fildes, int cmd, ...);
211: int kill(pid_t pid, int signal);
212: int link(const char * filename1, const char * filename2);
213: int lseek(int fildes, off_t offset, int origin);
214: int mknod(const char * filename, mode_t mode, dev_t dev);
215: int mount(const char * specialfile, const char * dir, int rwflag);
216: int nice(int val);
217: int open(const char * filename, int flag, ...);
218: int pause(void);
219: int pipe(int * fildes);
220: int read(int fildes, char * buf, off_t count);
221: int setpgrp(void);
222: int setpgid(pid_t pid,pid_t pgid);
223: int setuid(uid_t uid);
224: int setgid(gid_t gid);
225: void (*signal(int sig, void (*fn)(int)))(int);
226: int stat(const char * filename, struct stat * stat_buf);
227: int fstat(int fildes, struct stat * stat_buf);
228: int stime(time_t * tptr);
229: int sync(void);
230: time_t time(time_t * tloc);
231: time_t times(struct tms * tbuf);
232: int ulimit(int cmd, long limit);
233: mode_t umask(mode_t mask);
234: int umount(const char * specialfile);
235: int uname(struct utsname * name);
236: int unlink(const char * filename);
237: int ustat(dev_t dev, struct ustat * ubuf);
238: int utime(const char * filename, struct utimbuf * times);
239: pid_t waitpid(pid_t pid,int * wait_stat,int options);
240: pid_t wait(int * wait_stat);
241: int write(int fildes, const char * buf, off_t count);
242: int dup2(int oldfd, int newfd);
243: int getppid(void);
244: pid_t getpgrp(void);
245: pid_t setsid(void);
246:
247: #endif
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