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Diffstat (limited to '3rdparty/libuv/src/unix/tty.c')
-rw-r--r--3rdparty/libuv/src/unix/tty.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/3rdparty/libuv/src/unix/tty.c b/3rdparty/libuv/src/unix/tty.c
deleted file mode 100644
index 32fa37eac96..00000000000
--- a/3rdparty/libuv/src/unix/tty.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-#include "internal.h"
-#include "spinlock.h"
-
-#include <stdlib.h>
-#include <assert.h>
-#include <unistd.h>
-#include <termios.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-
-static int orig_termios_fd = -1;
-static struct termios orig_termios;
-static uv_spinlock_t termios_spinlock = UV_SPINLOCK_INITIALIZER;
-
-static int uv__tty_is_slave(const int fd) {
- int result;
-#if defined(__linux__) || defined(__FreeBSD__)
- int dummy;
-
- result = ioctl(fd, TIOCGPTN, &dummy) != 0;
-#elif defined(__APPLE__)
- char dummy[256];
-
- result = ioctl(fd, TIOCPTYGNAME, &dummy) != 0;
-#else
- /* Fallback to ptsname
- */
- result = ptsname(fd) == NULL;
-#endif
- return result;
-}
-
-int uv_tty_init(uv_loop_t* loop, uv_tty_t* tty, int fd, int readable) {
- uv_handle_type type;
- int flags;
- int newfd;
- int r;
- char path[256];
-
- /* File descriptors that refer to files cannot be monitored with epoll.
- * That restriction also applies to character devices like /dev/random
- * (but obviously not /dev/tty.)
- */
- type = uv_guess_handle(fd);
- if (type == UV_FILE || type == UV_UNKNOWN_HANDLE)
- return -EINVAL;
-
- flags = 0;
- newfd = -1;
-
- /* Reopen the file descriptor when it refers to a tty. This lets us put the
- * tty in non-blocking mode without affecting other processes that share it
- * with us.
- *
- * Example: `node | cat` - if we put our fd 0 in non-blocking mode, it also
- * affects fd 1 of `cat` because both file descriptors refer to the same
- * struct file in the kernel. When we reopen our fd 0, it points to a
- * different struct file, hence changing its properties doesn't affect
- * other processes.
- */
- if (type == UV_TTY) {
- /* Reopening a pty in master mode won't work either because the reopened
- * pty will be in slave mode (*BSD) or reopening will allocate a new
- * master/slave pair (Linux). Therefore check if the fd points to a
- * slave device.
- */
- if (uv__tty_is_slave(fd) && ttyname_r(fd, path, sizeof(path)) == 0)
- r = uv__open_cloexec(path, O_RDWR);
- else
- r = -1;
-
- if (r < 0) {
- /* fallback to using blocking writes */
- if (!readable)
- flags |= UV_STREAM_BLOCKING;
- goto skip;
- }
-
- newfd = r;
-
- r = uv__dup2_cloexec(newfd, fd);
- if (r < 0 && r != -EINVAL) {
- /* EINVAL means newfd == fd which could conceivably happen if another
- * thread called close(fd) between our calls to isatty() and open().
- * That's a rather unlikely event but let's handle it anyway.
- */
- uv__close(newfd);
- return r;
- }
-
- fd = newfd;
- }
-
-skip:
- uv__stream_init(loop, (uv_stream_t*) tty, UV_TTY);
-
- /* If anything fails beyond this point we need to remove the handle from
- * the handle queue, since it was added by uv__handle_init in uv_stream_init.
- */
-
-#if defined(__APPLE__)
- r = uv__stream_try_select((uv_stream_t*) tty, &fd);
- if (r) {
- if (newfd != -1)
- uv__close(newfd);
- QUEUE_REMOVE(&tty->handle_queue);
- return r;
- }
-#endif
-
- if (readable)
- flags |= UV_STREAM_READABLE;
- else
- flags |= UV_STREAM_WRITABLE;
-
- if (!(flags & UV_STREAM_BLOCKING))
- uv__nonblock(fd, 1);
-
- uv__stream_open((uv_stream_t*) tty, fd, flags);
- tty->mode = UV_TTY_MODE_NORMAL;
-
- return 0;
-}
-
-static void uv__tty_make_raw(struct termios* tio) {
- assert(tio != NULL);
-
-#ifdef __sun
- /*
- * This implementation of cfmakeraw for Solaris and derivatives is taken from
- * http://www.perkin.org.uk/posts/solaris-portability-cfmakeraw.html.
- */
- tio->c_iflag &= ~(IMAXBEL | IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
- IGNCR | ICRNL | IXON);
- tio->c_oflag &= ~OPOST;
- tio->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
- tio->c_cflag &= ~(CSIZE | PARENB);
- tio->c_cflag |= CS8;
-#else
- cfmakeraw(tio);
-#endif /* #ifdef __sun */
-}
-
-int uv_tty_set_mode(uv_tty_t* tty, uv_tty_mode_t mode) {
- struct termios tmp;
- int fd;
-
- if (tty->mode == (int) mode)
- return 0;
-
- fd = uv__stream_fd(tty);
- if (tty->mode == UV_TTY_MODE_NORMAL && mode != UV_TTY_MODE_NORMAL) {
- if (tcgetattr(fd, &tty->orig_termios))
- return -errno;
-
- /* This is used for uv_tty_reset_mode() */
- uv_spinlock_lock(&termios_spinlock);
- if (orig_termios_fd == -1) {
- orig_termios = tty->orig_termios;
- orig_termios_fd = fd;
- }
- uv_spinlock_unlock(&termios_spinlock);
- }
-
- tmp = tty->orig_termios;
- switch (mode) {
- case UV_TTY_MODE_NORMAL:
- break;
- case UV_TTY_MODE_RAW:
- tmp.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
- tmp.c_oflag |= (ONLCR);
- tmp.c_cflag |= (CS8);
- tmp.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
- tmp.c_cc[VMIN] = 1;
- tmp.c_cc[VTIME] = 0;
- break;
- case UV_TTY_MODE_IO:
- uv__tty_make_raw(&tmp);
- break;
- }
-
- /* Apply changes after draining */
- if (tcsetattr(fd, TCSADRAIN, &tmp))
- return -errno;
-
- tty->mode = mode;
- return 0;
-}
-
-
-int uv_tty_get_winsize(uv_tty_t* tty, int* width, int* height) {
- struct winsize ws;
- int err;
-
- do
- err = ioctl(uv__stream_fd(tty), TIOCGWINSZ, &ws);
- while (err == -1 && errno == EINTR);
-
- if (err == -1)
- return -errno;
-
- *width = ws.ws_col;
- *height = ws.ws_row;
-
- return 0;
-}
-
-
-uv_handle_type uv_guess_handle(uv_file file) {
- struct sockaddr sa;
- struct stat s;
- socklen_t len;
- int type;
-
- if (file < 0)
- return UV_UNKNOWN_HANDLE;
-
- if (isatty(file))
- return UV_TTY;
-
- if (fstat(file, &s))
- return UV_UNKNOWN_HANDLE;
-
- if (S_ISREG(s.st_mode))
- return UV_FILE;
-
- if (S_ISCHR(s.st_mode))
- return UV_FILE; /* XXX UV_NAMED_PIPE? */
-
- if (S_ISFIFO(s.st_mode))
- return UV_NAMED_PIPE;
-
- if (!S_ISSOCK(s.st_mode))
- return UV_UNKNOWN_HANDLE;
-
- len = sizeof(type);
- if (getsockopt(file, SOL_SOCKET, SO_TYPE, &type, &len))
- return UV_UNKNOWN_HANDLE;
-
- len = sizeof(sa);
- if (getsockname(file, &sa, &len))
- return UV_UNKNOWN_HANDLE;
-
- if (type == SOCK_DGRAM)
- if (sa.sa_family == AF_INET || sa.sa_family == AF_INET6)
- return UV_UDP;
-
- if (type == SOCK_STREAM) {
-#if defined(_AIX)
- /* on AIX the getsockname call returns an empty sa structure
- * for sockets of type AF_UNIX. For all other types it will
- * return a properly filled in structure.
- */
- if (len == 0)
- return UV_NAMED_PIPE;
-#endif /* defined(_AIX) */
-
- if (sa.sa_family == AF_INET || sa.sa_family == AF_INET6)
- return UV_TCP;
- if (sa.sa_family == AF_UNIX)
- return UV_NAMED_PIPE;
- }
-
- return UV_UNKNOWN_HANDLE;
-}
-
-
-/* This function is async signal-safe, meaning that it's safe to call from
- * inside a signal handler _unless_ execution was inside uv_tty_set_mode()'s
- * critical section when the signal was raised.
- */
-int uv_tty_reset_mode(void) {
- int saved_errno;
- int err;
-
- saved_errno = errno;
- if (!uv_spinlock_trylock(&termios_spinlock))
- return -EBUSY; /* In uv_tty_set_mode(). */
-
- err = 0;
- if (orig_termios_fd != -1)
- if (tcsetattr(orig_termios_fd, TCSANOW, &orig_termios))
- err = -errno;
-
- uv_spinlock_unlock(&termios_spinlock);
- errno = saved_errno;
-
- return err;
-}