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https://github.com/tmate-io/tmate.git
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Rewrite command handling to be more generic. Not finished!
This commit is contained in:
93
client.c
93
client.c
@ -1,4 +1,4 @@
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/* $Id: client.c,v 1.10 2007-10-03 10:18:32 nicm Exp $ */
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/* $Id: client.c,v 1.11 2007-10-03 21:31:07 nicm Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -38,33 +38,19 @@ int client_process_local(struct client_ctx *, char **);
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int
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client_init(char *path, struct client_ctx *cctx, int start_server)
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{
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struct sockaddr_un sa;
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struct stat sb;
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size_t sz;
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int mode;
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u_int retries;
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struct sockaddr_un sa;
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struct stat sb;
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struct msg_identify_data data;
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struct winsize ws;
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size_t sz;
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int mode;
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u_int retries;
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if (path == NULL) {
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xasprintf(&path,
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"%s/%s-%lu", _PATH_TMP, __progname, (u_long) getuid());
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}
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if (start_server) {
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if (!isatty(STDIN_FILENO)) {
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log_warnx("stdin is not a tty");
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return (-1);
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}
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if (!isatty(STDOUT_FILENO)) {
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log_warnx("stdout is not a tty");
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return (-1);
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}
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if (ioctl(STDIN_FILENO, TIOCGWINSZ, &cctx->ws) == -1) {
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log_warn("ioctl(TIOCGWINSZ)");
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return (-1);
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}
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}
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retries = 0;
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retry:
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if (stat(path, &sb) != 0) {
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@ -121,50 +107,18 @@ retry:
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cctx->srv_in = buffer_create(BUFSIZ);
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cctx->srv_out = buffer_create(BUFSIZ);
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return (0);
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}
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int
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client_flush(struct client_ctx *cctx)
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{
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struct pollfd pfd;
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struct hdr hdr;
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for (;;) {
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pfd.fd = cctx->srv_fd;
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pfd.events = POLLIN;
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if (BUFFER_USED(cctx->srv_out) > 0)
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pfd.events |= POLLOUT;
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if (poll(&pfd, 1, INFTIM) == -1) {
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if (errno == EAGAIN || errno == EINTR)
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continue;
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fatal("poll failed");
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if (isatty(STDIN_FILENO) && isatty(STDOUT_FILENO)) {
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if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) {
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log_warn("ioctl(TIOCGWINSZ)");
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return (-1);
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}
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if (buffer_poll(&pfd, cctx->srv_in, cctx->srv_out) != 0) {
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log_warnx("lost server");
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return (1);
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}
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if (BUFFER_USED(cctx->srv_in) < sizeof hdr)
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continue;
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memcpy(&hdr, BUFFER_OUT(cctx->srv_in), sizeof hdr);
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if (BUFFER_USED(cctx->srv_in) < (sizeof hdr) + hdr.size)
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continue;
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buffer_remove(cctx->srv_in, sizeof hdr);
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if (hdr.type == MSG_OKAY)
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return (0);
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if (hdr.type == MSG_ERROR) {
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if (hdr.size > INT_MAX - 1)
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fatalx("bad MSG_ERROR size");
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log_warnx(
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"%.*s", (int) hdr.size, BUFFER_OUT(cctx->srv_in));
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return (1);
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}
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fatalx("unexpected message");
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data.sx = ws.ws_col;
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data.sy = ws.ws_row;
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client_write_server(cctx, MSG_IDENTIFY, &data, sizeof data);
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}
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return (0);
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}
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int
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@ -244,14 +198,15 @@ local_dead:
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void
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client_handle_winch(struct client_ctx *cctx)
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{
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struct size_data data;
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if (ioctl(STDIN_FILENO, TIOCGWINSZ, &cctx->ws) == -1)
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struct msg_resize_data data;
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struct winsize ws;
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if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1)
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fatal("ioctl failed");
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data.sx = cctx->ws.ws_col;
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data.sy = cctx->ws.ws_row;
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client_write_server(cctx, MSG_SIZE, &data, sizeof data);
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data.sx = ws.ws_col;
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data.sy = ws.ws_row;
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client_write_server(cctx, MSG_RESIZE, &data, sizeof data);
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sigwinch = 0;
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}
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