1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* unistd.h <ndf@linux.mit.edu> */
#include <features.h>
#include <sys/types.h>
#ifndef __UNISTD_H
#define __UNISTD_H
#include <errno.h>
#ifdef __mc68000__
#include <asm/unistd.h>
#endif
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* NULL-terminated array of "NAME=VALUE" environment variables. */
extern char **__environ;
extern char **environ;
extern int close __P ((int));
extern size_t read __P ((int __fd, char * __buf, size_t __nbytes));
extern size_t write __P ((int __fd, __const char * __buf, size_t __n));
extern off_t lseek __P ((int __fd, off_t __n, int __whence));
extern int pipe __P ((int __pipedes[2]));
extern unsigned int alarm __P ((unsigned int __seconds));
extern int sleep __P ((unsigned int __seconds));
extern void usleep __P ((unsigned long __microseconds));
extern int pause __P ((void));
extern char* crypt __P((__const char *__key, __const char *__salt));
extern int isatty __P ((int __fd));
extern int readlink __P ((__const char *__path, char *__buf, size_t __len));
extern int link __P ((__const char *__from, __const char *__to));
extern int symlink __P ((__const char *__from, __const char *__to));
extern int readlink __P ((__const char *__path, char *__buf, size_t __len));
extern int unlink __P ((__const char *__name));
extern char *getcwd __P ((char *__buf, size_t __size));
/* Duplicate FD, returning a new file descriptor on the same file. */
extern int dup __P ((int __fd));
/* Duplicate FD to FD2, closing FD2 and making it open on the same file. */
extern int dup2 __P ((int __fd, int __fd2));
extern int fchdir __P ((int __fd));
extern int chdir __P ((__const char *__path));
extern int chown __P ((__const char *__file,
uid_t __owner, gid_t __group));
extern int fchown __P ((int __fd,
uid_t __owner, gid_t __group));
extern int fsync __P ((int __fd));
extern int sync __P ((void));
extern int rmdir __P ((__const char *__path));
extern int rename __P((__const char* _old, __const char* _new));
extern int access __P ((__const char *__name, int __type));
extern int reboot __P ((int __magic, int __magic_too, int __flag));
extern int mkstemp __P ((char * __template));
extern char * mktemp __P ((char * __template));
extern int _clone __P ((int (*fn)(void *arg), void *child_stack, int flags, void *arg));
/* Make PATH be the root directory (the starting point for absolute paths).
This call is restricted to the super-user. */
extern int chroot __P ((__const char *__path));
/* Execute PATH with all arguments after PATH until
a NULL pointer and environment from `environ'. */
extern int execl __P ((__const char *__path, __const char *__arg, ...));
/* Execute FILE, searching in the `PATH' environment variable if
it contains no slashes, with all arguments after FILE until a
NULL pointer and environment from `environ'. */
extern int execlp __P ((__const char *__file, __const char *__arg, ...));
/* Execute PATH with arguments ARGV and environment from `environ'. */
extern int execv __P ((__const char *__path, char *__const __argv[]));
/* Replace the current process, executing PATH with arguments ARGV and
environment ENVP. ARGV and ENVP are terminated by NULL pointers. */
extern int execve __P ((__const char *__path, char *__const __argv[],
char *__const __envp[]));
/* Execute FILE, searching in the `PATH' environment variable if it contains
no slashes, with arguments ARGV and environment from `environ'. */
extern int execvp __P ((__const char *__file, char *__const __argv[]));
/* Execute PATH with arguments ARGV and environment ENVP. */
extern int execvep __P ((__const char *path, char *__const __argv[],
char *__const __envp[]));
/* Terminate program execution with the low-order 8 bits of STATUS. */
extern void _exit __P ((int __status)) __attribute__ ((__noreturn__));
/* Clone the calling process, creating an exact copy.
* Return -1 for errors, 0 to the new process,
* and the process ID of the new process to the old process. */
extern __pid_t __fork __P ((void));
extern __pid_t fork __P ((void));
/* Clone the calling process, but without copying the whole address space.
* The calling process is suspended until the new process exits or is
* replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
* and the process ID of the new process to the old process. */
extern __pid_t vfork __P ((void));
#ifndef SEEK_SET
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#endif
#ifndef R_OK
#define R_OK 4 /* Test for read permission. */
#define W_OK 2 /* Test for write permission. */
#define X_OK 1 /* Test for execute permission. */
#define F_OK 0 /* Test for existence. */
#endif
#endif /* __UNISTD_H */
|
