2 * Acess2 POSIX Emulation Layer
6 * - POSIX->Acess VFS call translation
11 #include <sys/select.h>
14 #include <acess/devices/pty.h>
18 int unlink(const char *pathname)
20 return _SysUnlink(pathname);
23 int open(const char *path, int openmode, ...)
25 mode_t create_mode = 0;
28 switch( openmode & O_RDWR )
32 case O_RDONLY: openflags |= OPENFLAG_READ; break;
33 case O_WRONLY: openflags |= OPENFLAG_WRITE; break;
34 case O_RDWR: openflags |= OPENFLAG_READ|OPENFLAG_WRITE; break;
37 if( openmode & O_CREAT ) {
38 openflags |= OPENFLAG_CREATE;
40 va_start(args, openmode);
41 create_mode = va_arg(args, mode_t);
45 if( openmode & O_NONBLOCK )
46 openflags |= OPENFLAG_NONBLOCK;
48 int ret = _SysOpen(path, openflags, create_mode);
49 _SysDebug("open('%s', 0%o, 0%o) = %i", path, openmode, create_mode, ret);
53 int access(const char *path, int openmode)
59 int creat(const char *path, mode_t mode)
61 // TODO: Make native call to do this cheaper
62 int fd = _SysOpen(path, OPENFLAG_CREATE, mode);
63 if( fd == -1 ) return -1;
74 ssize_t write(int fd, const void *buf, size_t count)
76 return _SysWrite(fd, buf, count);
79 ssize_t read(int fd, void *buf, size_t count)
81 return _SysRead(fd, buf, count);
84 int seek(int fd, int whence, off_t dest)
86 return _SysSeek(fd, whence, dest);
89 off_t lseek(int fd, off_t offset, int whence)
91 return _SysSeek(fd, whence, offset);
101 return _SysClone(CLONE_VM, 0);
104 int execv(const char *b, char *v[])
106 return _SysExecVE(b, v, NULL);
111 _SysDebug("libposix: dup() does not share offsets/flags");
112 // NOTE: Acess's CopyFD doesn't cause offset sharing
113 int ret = _SysCopyFD(oldfd, -1);
114 _SysDebug("dup(%i) = %i", oldfd, ret);
118 int dup2(int oldfd, int newfd)
120 _SysDebug("libposix: dup2() does not share offsets/flags");
121 // NOTE: Acess's CopyFD doesn't cause offset sharing
122 _SysDebug("dup2(%i,%i)", oldfd, newfd);
123 return _SysCopyFD(oldfd, newfd);
126 int chown(const char *path, uid_t owner, gid_t group)
128 _SysDebug("TODO: chown(%s, %i, %i)", path, owner, group);
132 int chmod(const char *path, mode_t mode)
134 _SysDebug("TODO: chmod(%s, 0%o)", path, mode);
140 * Set session ID to PID
144 // TODO: actual syscall for this
164 // TODO: Impliment EUIDs in-kernel?
168 int seteuid(uid_t euid)
170 _SysDebug("TODO: %s", __func__);
173 int setegid(gid_t egid)
175 _SysDebug("TODO: %s", __func__);
179 unsigned int sleep(unsigned int seconds)
181 int64_t start = _SysTimestamp();
182 _SysTimedSleep( seconds*1000 );
183 return (_SysTimestamp() - start) / 1000;
186 int usleep(useconds_t usec)
188 _SysTimedSleep( (usec+999)/1000 );
192 unsigned int alarm(unsigned int seconds)
194 static int64_t alarm_time;
197 alarm_time = _SysTimestamp() + seconds * 1000;
198 // TODO: Schedule SIGALRM
200 return (alarm_time - _SysTimestamp()) / 1000;
203 int kill(pid_t pid, int signal)
205 // TODO: Need special handling?
206 return _SysKill(pid, signal);
209 int select(int nfd, fd_set *rfd, fd_set *wfd, fd_set *efd, struct timeval *timeout)
211 int64_t ltimeout = 0, *ltimeoutp = NULL;
214 ltimeout = timeout->tv_sec*1000 + timeout->tv_usec / 1000;
215 ltimeoutp = <imeout;
217 _SysDebug("select(%i,{0x%x},{0x%x},{0x%x},%lli)",
218 nfd, (rfd?rfd->flags[0]:0), (wfd?wfd->flags[0]:0), (efd?efd->flags[0]:0),
219 (ltimeoutp ? *ltimeoutp : -1)
221 return _SysSelect(nfd, rfd, wfd, efd, ltimeoutp, 0);
224 int pipe(int pipefd[2])
226 pipefd[0] = _SysOpen("/Devices/fifo/anon", OPENFLAG_READ|OPENFLAG_WRITE);
227 pipefd[1] = _SysCopyFD(pipefd[0], -1);
228 _SysFDFlags(pipefd[1], OPENFLAG_READ|OPENFLAG_WRITE, OPENFLAG_WRITE);
229 _SysDebug("pipe({%i,%i})", pipefd[0], pipefd[1]);
233 int chdir(const char *dir)
235 return _SysChdir(dir);
238 int rmdir(const char *pathname)
240 // return _SysUnlink(pathname);
241 _SysDebug("TODO: POSIX rmdir('%s')", pathname);
246 int mkdir(const char *pathname, mode_t mode)
248 _SysDebug("TODO: POSIX mkdir('%s', 0%o)", pathname, mode);
253 char *getpass(const char *prompt)
255 static char passbuf[PASS_MAX+1];
256 struct ptymode oldmode, mode;
257 _SysIOCtl(STDIN_FILENO, PTY_IOCTL_GETMODE, &oldmode);
258 mode.InputMode = PTYIMODE_CANON;
260 _SysIOCtl(STDIN_FILENO, PTY_IOCTL_SETMODE, &mode);
261 fprintf(stderr, "%s", prompt);
262 fflush(stdin); // clear stdin buffer
263 fgets(passbuf, PASS_MAX+1, stdin);
264 fprintf(stderr, "\n");
265 for( int i = strlen(passbuf); i > 0 && (passbuf[i-1] == '\r' || passbuf[i-1] == '\n'); i -- )
268 _SysIOCtl(STDIN_FILENO, PTY_IOCTL_SETMODE, &oldmode);
273 char *ttyname(int fd)
275 static char ttyname_buf[32];
276 errno = ttyname_r(fd, ttyname_buf, sizeof(ttyname_buf));
277 if(errno) return NULL;
281 int ttyname_r(int fd, char *buf, size_t buflen)
283 int type = _SysIOCtl(fd, DRV_IOCTL_TYPE, NULL);
286 if( type != DRV_TYPE_TERMINAL )
289 _SysIOCtl(fd, PTY_IOCTL_GETID, NULL);
291 _SysDebug("TODO: ttyname_r");
303 int type = _SysIOCtl(fd, DRV_IOCTL_TYPE, NULL);
306 if( type != DRV_TYPE_TERMINAL ) {
308 // NOTE: Pre POSIX 2001, EINVAL was returned