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 /* no 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 #define __NR_sigaction 67
128 #define __NR_sgetmask 68
129 #define __NR_ssetmask 69
130 #define __NR_setreuid 70
131 #define __NR_setregid 71
132
133 #define _syscall0(type,name) \
134 type name(void) \
135 { \
136 long __res; \
137 __asm__ volatile ("int $0x80" \
138 : "=a" (__res) \
139 : "" (__NR_##name)); \
140 if (__res >= 0) \
141 return (type) __res; \
142 errno = -__res; \
143 return -1; \
144 }
145
146 #define _syscall1(type,name,atype,a) \
147 type name(atype a) \
148 { \
149 long __res; \
150 __asm__ volatile ("int $0x80" \
151 : "=a" (__res) \
152 : "" (__NR_##name),"b" ((long)(a))); \
153 if (__res >= 0) \
154 return (type) __res; \
155 errno = -__res; \
156 return -1; \
157 }
158
159 #define _syscall2(type,name,atype,a,btype,b) \
160 type name(atype a,btype b) \
161 { \
162 long __res; \
163 __asm__ volatile ("int $0x80" \
164 : "=a" (__res) \
165 : "" (__NR_##name),"b" ((long)(a)),"c" ((long)(b))); \
166 if (__res >= 0) \
167 return (type) __res; \
168 errno = -__res; \
169 return -1; \
170 }
171
172 #define _syscall3(type,name,atype,a,btype,b,ctype,c) \
173 type name(atype a,btype b,ctype c) \
174 { \
175 long __res; \
176 __asm__ volatile ("int $0x80" \
177 : "=a" (__res) \
178 : "" (__NR_##name),"b" ((long)(a)),"c" ((long)(b)),"d" ((long)(c))); \
179 if (__res>=0) \
180 return (type) __res; \
181 errno=-__res; \
182 return -1; \
183 }
184
185 #endif /* __LIBRARY__ */
186
187 extern int errno;
188
189 int access(const char * filename, mode_t mode);
190 int acct(const char * filename);
191 int alarm(int sec);
192 int brk(void * end_data_segment);
193 void * sbrk(ptrdiff_t increment);
194 int chdir(const char * filename);
195 int chmod(const char * filename, mode_t mode);
196 int chown(const char * filename, uid_t owner, gid_t group);
197 int chroot(const char * filename);
198 int close(int fildes);
199 int creat(const char * filename, mode_t mode);
200 int dup(int fildes);
201 int execve(const char * filename, char ** argv, char ** envp);
202 int execv(const char * pathname, char ** argv);
203 int execvp(const char * file, char ** argv);
204 int execl(const char * pathname, char * arg0, ...);
205 int execlp(const char * file, char * arg0, ...);
206 int execle(const char * pathname, char * arg0, ...);
207 volatile void exit(int status);
208 volatile void _exit(int status);
209 int fcntl(int fildes, int cmd, ...);
210 int fork(void);
211 int getpid(void);
212 int getuid(void);
213 int geteuid(void);
214 int getgid(void);
215 int getegid(void);
216 int ioctl(int fildes, int cmd, ...);
217 int kill(pid_t pid, int signal);
218 int link(const char * filename1, const char * filename2);
219 int lseek(int fildes, off_t offset, int origin);
220 int mknod(const char * filename, mode_t mode, dev_t dev);
221 int mount(const char * specialfile, const char * dir, int rwflag);
222 int nice(int val);
223 int open(const char * filename, int flag, ...);
224 int pause(void);
225 int pipe(int * fildes);
226 int read(int fildes, char * buf, off_t count);
227 int setpgrp(void);
228 int setpgid(pid_t pid,pid_t pgid);
229 int setuid(uid_t uid);
230 int setgid(gid_t gid);
231 void (*signal(int sig, void (*fn)(int)))(int);
232 int stat(const char * filename, struct stat * stat_buf);
233 int fstat(int fildes, struct stat * stat_buf);
234 int stime(time_t * tptr);
235 int sync(void);
236 time_t time(time_t * tloc);
237 time_t times(struct tms * tbuf);
238 int ulimit(int cmd, long limit);
239 mode_t umask(mode_t mask);
240 int umount(const char * specialfile);
241 int uname(struct utsname * name);
242 int unlink(const char * filename);
243 int ustat(dev_t dev, struct ustat * ubuf);
244 int utime(const char * filename, struct utimbuf * times);
245 pid_t waitpid(pid_t pid,int * wait_stat,int options);
246 pid_t wait(int * wait_stat);
247 int write(int fildes, const char * buf, off_t count);
248 int dup2(int oldfd, int newfd);
249 int getppid(void);
250 pid_t getpgrp(void);
251 pid_t setsid(void);
252
253 #endif
254
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