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Diffstat (limited to 'src/clientserver.c')
| -rw-r--r-- | src/clientserver.c | 1003 |
1 files changed, 1003 insertions, 0 deletions
diff --git a/src/clientserver.c b/src/clientserver.c new file mode 100644 index 000000000..524542580 --- /dev/null +++ b/src/clientserver.c @@ -0,0 +1,1003 @@ +/* vi:set ts=8 sts=4 sw=4 noet: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * clientserver.c: functions for Client Server functionality + */ + +#include "vim.h" + +#if defined(FEAT_CLIENTSERVER) || defined(PROTO) + +static void cmdsrv_main(int *argc, char **argv, char_u *serverName_arg, char_u **serverStr); +static char_u *serverMakeName(char_u *arg, char *cmd); + +/* + * Replace termcodes such as <CR> and insert as key presses if there is room. + */ + void +server_to_input_buf(char_u *str) +{ + char_u *ptr = NULL; + char_u *cpo_save = p_cpo; + + // Set 'cpoptions' the way we want it. + // B set - backslashes are *not* treated specially + // k set - keycodes are *not* reverse-engineered + // < unset - <Key> sequences *are* interpreted + // The last but one parameter of replace_termcodes() is TRUE so that the + // <lt> sequence is recognised - needed for a real backslash. + p_cpo = (char_u *)"Bk"; + str = replace_termcodes((char_u *)str, &ptr, REPTERM_DO_LT, NULL); + p_cpo = cpo_save; + + if (*ptr != NUL) // trailing CTRL-V results in nothing + { + /* + * Add the string to the input stream. + * Can't use add_to_input_buf() here, we now have K_SPECIAL bytes. + * + * First clear typed characters from the typeahead buffer, there could + * be half a mapping there. Then append to the existing string, so + * that multiple commands from a client are concatenated. + */ + if (typebuf.tb_maplen < typebuf.tb_len) + del_typebuf(typebuf.tb_len - typebuf.tb_maplen, typebuf.tb_maplen); + (void)ins_typebuf(str, REMAP_NONE, typebuf.tb_len, TRUE, FALSE); + + // Let input_available() know we inserted text in the typeahead + // buffer. + typebuf_was_filled = TRUE; + } + vim_free((char_u *)ptr); +} + +/* + * Evaluate an expression that the client sent to a string. + */ + char_u * +eval_client_expr_to_string(char_u *expr) +{ + char_u *res; + int save_dbl = debug_break_level; + int save_ro = redir_off; + funccal_entry_T funccal_entry; + int did_save_funccal = FALSE; + + // Evaluate the expression at the toplevel, don't use variables local to + // the calling function. Except when in debug mode. + if (!debug_mode) + { + save_funccal(&funccal_entry); + did_save_funccal = TRUE; + } + + // Disable debugging, otherwise Vim hangs, waiting for "cont" to be + // typed. + debug_break_level = -1; + redir_off = 0; + // Do not display error message, otherwise Vim hangs, waiting for "cont" + // to be typed. Do generate errors so that try/catch works. + ++emsg_silent; + + res = eval_to_string(expr, NULL, TRUE); + + debug_break_level = save_dbl; + redir_off = save_ro; + --emsg_silent; + if (emsg_silent < 0) + emsg_silent = 0; + if (did_save_funccal) + restore_funccal(); + + // A client can tell us to redraw, but not to display the cursor, so do + // that here. + setcursor(); + out_flush_cursor(FALSE, FALSE); + + return res; +} + +/* + * Evaluate a command or expression sent to ourselves. + */ + int +sendToLocalVim(char_u *cmd, int asExpr, char_u **result) +{ + if (asExpr) + { + char_u *ret; + + ret = eval_client_expr_to_string(cmd); + if (result != NULL) + { + if (ret == NULL) + { + char *err = _(e_invexprmsg); + size_t len = STRLEN(cmd) + STRLEN(err) + 5; + char_u *msg; + + msg = alloc(len); + if (msg != NULL) + vim_snprintf((char *)msg, len, "%s: \"%s\"", err, cmd); + *result = msg; + } + else + *result = ret; + } + else + vim_free(ret); + return ret == NULL ? -1 : 0; + } + server_to_input_buf(cmd); + return 0; +} + +/* + * If conversion is needed, convert "data" from "client_enc" to 'encoding' and + * return an allocated string. Otherwise return "data". + * "*tofree" is set to the result when it needs to be freed later. + */ + char_u * +serverConvert( + char_u *client_enc UNUSED, + char_u *data, + char_u **tofree) +{ + char_u *res = data; + + *tofree = NULL; + if (client_enc != NULL && p_enc != NULL) + { + vimconv_T vimconv; + + vimconv.vc_type = CONV_NONE; + if (convert_setup(&vimconv, client_enc, p_enc) != FAIL + && vimconv.vc_type != CONV_NONE) + { + res = string_convert(&vimconv, data, NULL); + if (res == NULL) + res = data; + else + *tofree = res; + } + convert_setup(&vimconv, NULL, NULL); + } + return res; +} +#endif + +#if (defined(FEAT_CLIENTSERVER) && !defined(NO_VIM_MAIN)) || defined(PROTO) + +/* + * Common code for the X command server and the Win32 command server. + */ + +static char_u *build_drop_cmd(int filec, char **filev, int tabs, int sendReply); + +/* + * Do the client-server stuff, unless "--servername ''" was used. + */ + void +exec_on_server(mparm_T *parmp) +{ + if (parmp->serverName_arg == NULL || *parmp->serverName_arg != NUL) + { +# ifdef MSWIN + // Initialise the client/server messaging infrastructure. + serverInitMessaging(); +# endif + + /* + * When a command server argument was found, execute it. This may + * exit Vim when it was successful. Otherwise it's executed further + * on. Remember the encoding used here in "serverStrEnc". + */ + if (parmp->serverArg) + { + cmdsrv_main(&parmp->argc, parmp->argv, + parmp->serverName_arg, &parmp->serverStr); + parmp->serverStrEnc = vim_strsave(p_enc); + } + + // If we're still running, get the name to register ourselves. + // On Win32 can register right now, for X11 need to setup the + // clipboard first, it's further down. + parmp->servername = serverMakeName(parmp->serverName_arg, + parmp->argv[0]); +# ifdef MSWIN + if (parmp->servername != NULL) + { + serverSetName(parmp->servername); + vim_free(parmp->servername); + } +# endif + } +} + +/* + * Prepare for running as a Vim server. + */ + void +prepare_server(mparm_T *parmp) +{ +# if defined(FEAT_X11) + /* + * Register for remote command execution with :serversend and --remote + * unless there was a -X or a --servername '' on the command line. + * Only register nongui-vim's with an explicit --servername argument, + * or when compiling with autoservername. + * When running as root --servername is also required. + */ + if (X_DISPLAY != NULL && parmp->servername != NULL && ( +# if defined(FEAT_AUTOSERVERNAME) || defined(FEAT_GUI) + ( +# if defined(FEAT_AUTOSERVERNAME) + 1 +# else + gui.in_use +# endif +# ifdef UNIX + && getuid() != ROOT_UID +# endif + ) || +# endif + parmp->serverName_arg != NULL)) + { + (void)serverRegisterName(X_DISPLAY, parmp->servername); + vim_free(parmp->servername); + TIME_MSG("register server name"); + } + else + serverDelayedStartName = parmp->servername; +# endif + + /* + * Execute command ourselves if we're here because the send failed (or + * else we would have exited above). + */ + if (parmp->serverStr != NULL) + { + char_u *p; + + server_to_input_buf(serverConvert(parmp->serverStrEnc, + parmp->serverStr, &p)); + vim_free(p); + } +} + + static void +cmdsrv_main( + int *argc, + char **argv, + char_u *serverName_arg, + char_u **serverStr) +{ + char_u *res; + int i; + char_u *sname; + int ret; + int didone = FALSE; + int exiterr = 0; + char **newArgV = argv + 1; + int newArgC = 1, + Argc = *argc; + int argtype; +#define ARGTYPE_OTHER 0 +#define ARGTYPE_EDIT 1 +#define ARGTYPE_EDIT_WAIT 2 +#define ARGTYPE_SEND 3 + int silent = FALSE; + int tabs = FALSE; +# ifndef FEAT_X11 + HWND srv; +# else + Window srv; + + setup_term_clip(); +# endif + + sname = serverMakeName(serverName_arg, argv[0]); + if (sname == NULL) + return; + + /* + * Execute the command server related arguments and remove them + * from the argc/argv array; We may have to return into main() + */ + for (i = 1; i < Argc; i++) + { + res = NULL; + if (STRCMP(argv[i], "--") == 0) // end of option arguments + { + for (; i < *argc; i++) + { + *newArgV++ = argv[i]; + newArgC++; + } + break; + } + + if (STRICMP(argv[i], "--remote-send") == 0) + argtype = ARGTYPE_SEND; + else if (STRNICMP(argv[i], "--remote", 8) == 0) + { + char *p = argv[i] + 8; + + argtype = ARGTYPE_EDIT; + while (*p != NUL) + { + if (STRNICMP(p, "-wait", 5) == 0) + { + argtype = ARGTYPE_EDIT_WAIT; + p += 5; + } + else if (STRNICMP(p, "-silent", 7) == 0) + { + silent = TRUE; + p += 7; + } + else if (STRNICMP(p, "-tab", 4) == 0) + { + tabs = TRUE; + p += 4; + } + else + { + argtype = ARGTYPE_OTHER; + break; + } + } + } + else + argtype = ARGTYPE_OTHER; + + if (argtype != ARGTYPE_OTHER) + { + if (i == *argc - 1) + mainerr_arg_missing((char_u *)argv[i]); + if (argtype == ARGTYPE_SEND) + { + *serverStr = (char_u *)argv[i + 1]; + i++; + } + else + { + *serverStr = build_drop_cmd(*argc - i - 1, argv + i + 1, + tabs, argtype == ARGTYPE_EDIT_WAIT); + if (*serverStr == NULL) + { + // Probably out of memory, exit. + didone = TRUE; + exiterr = 1; + break; + } + Argc = i; + } +# ifdef FEAT_X11 + if (xterm_dpy == NULL) + { + mch_errmsg(_("No display")); + ret = -1; + } + else + ret = serverSendToVim(xterm_dpy, sname, *serverStr, + NULL, &srv, 0, 0, 0, silent); +# else + // Win32 always works? + ret = serverSendToVim(sname, *serverStr, NULL, &srv, 0, 0, silent); +# endif + if (ret < 0) + { + if (argtype == ARGTYPE_SEND) + { + // Failed to send, abort. + mch_errmsg(_(": Send failed.\n")); + didone = TRUE; + exiterr = 1; + } + else if (!silent) + // Let vim start normally. + mch_errmsg(_(": Send failed. Trying to execute locally\n")); + break; + } + +# ifdef FEAT_GUI_MSWIN + // Guess that when the server name starts with "g" it's a GUI + // server, which we can bring to the foreground here. + // Foreground() in the server doesn't work very well. + if (argtype != ARGTYPE_SEND && TOUPPER_ASC(*sname) == 'G') + SetForegroundWindow(srv); +# endif + + /* + * For --remote-wait: Wait until the server did edit each + * file. Also detect that the server no longer runs. + */ + if (ret >= 0 && argtype == ARGTYPE_EDIT_WAIT) + { + int numFiles = *argc - i - 1; + int j; + char_u *done = alloc(numFiles); + char_u *p; +# ifdef FEAT_GUI_MSWIN + NOTIFYICONDATA ni; + int count = 0; + extern HWND message_window; +# endif + + if (numFiles > 0 && argv[i + 1][0] == '+') + // Skip "+cmd" argument, don't wait for it to be edited. + --numFiles; + +# ifdef FEAT_GUI_MSWIN + ni.cbSize = sizeof(ni); + ni.hWnd = message_window; + ni.uID = 0; + ni.uFlags = NIF_ICON|NIF_TIP; + ni.hIcon = LoadIcon((HINSTANCE)GetModuleHandle(0), "IDR_VIM"); + sprintf(ni.szTip, _("%d of %d edited"), count, numFiles); + Shell_NotifyIcon(NIM_ADD, &ni); +# endif + + // Wait for all files to unload in remote + vim_memset(done, 0, numFiles); + while (memchr(done, 0, numFiles) != NULL) + { +# ifdef MSWIN + p = serverGetReply(srv, NULL, TRUE, TRUE, 0); + if (p == NULL) + break; +# else + if (serverReadReply(xterm_dpy, srv, &p, TRUE, -1) < 0) + break; +# endif + j = atoi((char *)p); + if (j >= 0 && j < numFiles) + { +# ifdef FEAT_GUI_MSWIN + ++count; + sprintf(ni.szTip, _("%d of %d edited"), + count, numFiles); + Shell_NotifyIcon(NIM_MODIFY, &ni); +# endif + done[j] = 1; + } + } +# ifdef FEAT_GUI_MSWIN + Shell_NotifyIcon(NIM_DELETE, &ni); +# endif + } + } + else if (STRICMP(argv[i], "--remote-expr") == 0) + { + if (i == *argc - 1) + mainerr_arg_missing((char_u *)argv[i]); +# ifdef MSWIN + // Win32 always works? + if (serverSendToVim(sname, (char_u *)argv[i + 1], + &res, NULL, 1, 0, FALSE) < 0) +# else + if (xterm_dpy == NULL) + mch_errmsg(_("No display: Send expression failed.\n")); + else if (serverSendToVim(xterm_dpy, sname, (char_u *)argv[i + 1], + &res, NULL, 1, 0, 1, FALSE) < 0) +# endif + { + if (res != NULL && *res != NUL) + { + // Output error from remote + mch_errmsg((char *)res); + VIM_CLEAR(res); + } + mch_errmsg(_(": Send expression failed.\n")); + } + } + else if (STRICMP(argv[i], "--serverlist") == 0) + { +# ifdef MSWIN + // Win32 always works? + res = serverGetVimNames(); +# else + if (xterm_dpy != NULL) + res = serverGetVimNames(xterm_dpy); +# endif + if (did_emsg) + mch_errmsg("\n"); + } + else if (STRICMP(argv[i], "--servername") == 0) + { + // Already processed. Take it out of the command line + i++; + continue; + } + else + { + *newArgV++ = argv[i]; + newArgC++; + continue; + } + didone = TRUE; + if (res != NULL && *res != NUL) + { + mch_msg((char *)res); + if (res[STRLEN(res) - 1] != '\n') + mch_msg("\n"); + } + vim_free(res); + } + + if (didone) + { + display_errors(); // display any collected messages + exit(exiterr); // Mission accomplished - get out + } + + // Return back into main() + *argc = newArgC; + vim_free(sname); +} + +/* + * Build a ":drop" command to send to a Vim server. + */ + static char_u * +build_drop_cmd( + int filec, + char **filev, + int tabs, // Use ":tab drop" instead of ":drop". + int sendReply) +{ + garray_T ga; + int i; + char_u *inicmd = NULL; + char_u *p; + char_u *cdp; + char_u *cwd; + + if (filec > 0 && filev[0][0] == '+') + { + inicmd = (char_u *)filev[0] + 1; + filev++; + filec--; + } + // Check if we have at least one argument. + if (filec <= 0) + mainerr_arg_missing((char_u *)filev[-1]); + + // Temporarily cd to the current directory to handle relative file names. + cwd = alloc(MAXPATHL); + if (cwd == NULL) + return NULL; + if (mch_dirname(cwd, MAXPATHL) != OK) + { + vim_free(cwd); + return NULL; + } + cdp = vim_strsave_escaped_ext(cwd, +#ifdef BACKSLASH_IN_FILENAME + (char_u *)"", // rem_backslash() will tell what chars to escape +#else + PATH_ESC_CHARS, +#endif + '\\', TRUE); + vim_free(cwd); + if (cdp == NULL) + return NULL; + ga_init2(&ga, 1, 100); + ga_concat(&ga, (char_u *)"<C-\\><C-N>:cd "); + ga_concat(&ga, cdp); + + // Call inputsave() so that a prompt for an encryption key works. + ga_concat(&ga, (char_u *)"<CR>:if exists('*inputsave')|call inputsave()|endif|"); + if (tabs) + ga_concat(&ga, (char_u *)"tab "); + ga_concat(&ga, (char_u *)"drop"); + for (i = 0; i < filec; i++) + { + // On Unix the shell has already expanded the wildcards, don't want to + // do it again in the Vim server. On MS-Windows only escape + // non-wildcard characters. + p = vim_strsave_escaped((char_u *)filev[i], +#ifdef UNIX + PATH_ESC_CHARS +#else + (char_u *)" \t%#" +#endif + ); + if (p == NULL) + { + vim_free(ga.ga_data); + return NULL; + } + ga_concat(&ga, (char_u *)" "); + ga_concat(&ga, p); + vim_free(p); + } + ga_concat(&ga, (char_u *)"|if exists('*inputrestore')|call inputrestore()|endif<CR>"); + + // The :drop commands goes to Insert mode when 'insertmode' is set, use + // CTRL-\ CTRL-N again. + ga_concat(&ga, (char_u *)"<C-\\><C-N>"); + + // Switch back to the correct current directory (prior to temporary path + // switch) unless 'autochdir' is set, in which case it will already be + // correct after the :drop command. With line breaks and spaces: + // if !exists('+acd') || !&acd + // if haslocaldir() + // cd - + // lcd - + // elseif getcwd() ==# 'current path' + // cd - + // endif + // endif + ga_concat(&ga, (char_u *)":if !exists('+acd')||!&acd|if haslocaldir()|"); + ga_concat(&ga, (char_u *)"cd -|lcd -|elseif getcwd() ==# '"); + ga_concat(&ga, cdp); + ga_concat(&ga, (char_u *)"'|cd -|endif|endif<CR>"); + vim_free(cdp); + + if (sendReply) + ga_concat(&ga, (char_u *)":call SetupRemoteReplies()<CR>"); + ga_concat(&ga, (char_u *)":"); + if (inicmd != NULL) + { + // Can't use <CR> after "inicmd", because an "startinsert" would cause + // the following commands to be inserted as text. Use a "|", + // hopefully "inicmd" does allow this... + ga_concat(&ga, inicmd); + ga_concat(&ga, (char_u *)"|"); + } + // Bring the window to the foreground, goto Insert mode when 'im' set and + // clear command line. + ga_concat(&ga, (char_u *)"cal foreground()|if &im|star|en|redr|f<CR>"); + ga_append(&ga, NUL); + return ga.ga_data; +} + +/* + * Make our basic server name: use the specified "arg" if given, otherwise use + * the tail of the command "cmd" we were started with. + * Return the name in allocated memory. This doesn't include a serial number. + */ + static char_u * +serverMakeName(char_u *arg, char *cmd) +{ + char_u *p; + + if (arg != NULL && *arg != NUL) + p = vim_strsave_up(arg); + else + { + p = vim_strsave_up(gettail((char_u *)cmd)); + // Remove .exe or .bat from the name. + if (p != NULL && vim_strchr(p, '.') != NULL) + *vim_strchr(p, '.') = NUL; + } + return p; +} +#endif // FEAT_CLIENTSERVER + +#if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11) + static void +make_connection(void) +{ + if (X_DISPLAY == NULL +# ifdef FEAT_GUI + && !gui.in_use +# endif + ) + { + x_force_connect = TRUE; + setup_term_clip(); + x_force_connect = FALSE; + } +} + + static int +check_connection(void) +{ + make_connection(); + if (X_DISPLAY == NULL) + { + emsg(_("E240: No connection to the X server")); + return FAIL; + } + return OK; +} +#endif + +#ifdef FEAT_CLIENTSERVER + static void +remote_common(typval_T *argvars, typval_T *rettv, int expr) +{ + char_u *server_name; + char_u *keys; + char_u *r = NULL; + char_u buf[NUMBUFLEN]; + int timeout = 0; +# ifdef MSWIN + HWND w; +# else + Window w; +# endif + + if (check_restricted() || check_secure()) + return; + +# ifdef FEAT_X11 + if (check_connection() == FAIL) + return; +# endif + if (argvars[2].v_type != VAR_UNKNOWN + && argvars[3].v_type != VAR_UNKNOWN) + timeout = tv_get_number(&argvars[3]); + + server_name = tv_get_string_chk(&argvars[0]); + if (server_name == NULL) + return; // type error; errmsg already given + keys = tv_get_string_buf(&argvars[1], buf); +# ifdef MSWIN + if (serverSendToVim(server_name, keys, &r, &w, expr, timeout, TRUE) < 0) +# else + if (serverSendToVim(X_DISPLAY, server_name, keys, &r, &w, expr, timeout, + 0, TRUE) < 0) +# endif + { + if (r != NULL) + { + emsg((char *)r); // sending worked but evaluation failed + vim_free(r); + } + else + semsg(_("E241: Unable to send to %s"), server_name); + return; + } + + rettv->vval.v_string = r; + + if (argvars[2].v_type != VAR_UNKNOWN) + { + dictitem_T v; + char_u str[30]; + char_u *idvar; + + idvar = tv_get_string_chk(&argvars[2]); + if (idvar != NULL && *idvar != NUL) + { + sprintf((char *)str, PRINTF_HEX_LONG_U, (long_u)w); + v.di_tv.v_type = VAR_STRING; + v.di_tv.vval.v_string = vim_strsave(str); + set_var(idvar, &v.di_tv, FALSE); + vim_free(v.di_tv.vval.v_string); + } + } +} +#endif + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * "remote_expr()" function + */ + void +f_remote_expr(typval_T *argvars UNUSED, typval_T *rettv) +{ + rettv->v_type = VAR_STRING; + rettv->vval.v_string = NULL; +#ifdef FEAT_CLIENTSERVER + remote_common(argvars, rettv, TRUE); +#endif +} + +/* + * "remote_foreground()" function + */ + void +f_remote_foreground(typval_T *argvars UNUSED, typval_T *rettv UNUSED) +{ +#ifdef FEAT_CLIENTSERVER +# ifdef MSWIN + // On Win32 it's done in this application. + { + char_u *server_name = tv_get_string_chk(&argvars[0]); + + if (server_name != NULL) + serverForeground(server_name); + } +# else + // Send a foreground() expression to the server. + argvars[1].v_type = VAR_STRING; + argvars[1].vval.v_string = vim_strsave((char_u *)"foreground()"); + argvars[2].v_type = VAR_UNKNOWN; + rettv->v_type = VAR_STRING; + rettv->vval.v_string = NULL; + remote_common(argvars, rettv, TRUE); + vim_free(argvars[1].vval.v_string); +# endif +#endif +} + + void +f_remote_peek(typval_T *argvars UNUSED, typval_T *rettv) +{ +#ifdef FEAT_CLIENTSERVER + dictitem_T v; + char_u *s = NULL; +# ifdef MSWIN + long_u n = 0; +# endif + char_u *serverid; + + if (check_restricted() || check_secure()) + { + rettv->vval.v_number = -1; + return; + } + serverid = tv_get_string_chk(&argvars[0]); + if (serverid == NULL) + { + rettv->vval.v_number = -1; + return; // type error; errmsg already given + } +# ifdef MSWIN + sscanf((const char *)serverid, SCANF_HEX_LONG_U, &n); + if (n == 0) + rettv->vval.v_number = -1; + else + { + s = serverGetReply((HWND)n, FALSE, FALSE, FALSE, 0); + rettv->vval.v_number = (s != NULL); + } +# else + if (check_connection() == FAIL) + return; + + rettv->vval.v_number = serverPeekReply(X_DISPLAY, + serverStrToWin(serverid), &s); +# endif + + if (argvars[1].v_type != VAR_UNKNOWN && rettv->vval.v_number > 0) + { + char_u *retvar; + + v.di_tv.v_type = VAR_STRING; + v.di_tv.vval.v_string = vim_strsave(s); + retvar = tv_get_string_chk(&argvars[1]); + if (retvar != NULL) + set_var(retvar, &v.di_tv, FALSE); + vim_free(v.di_tv.vval.v_string); + } +#else + rettv->vval.v_number = -1; +#endif +} + + void +f_remote_read(typval_T *argvars UNUSED, typval_T *rettv) +{ + char_u *r = NULL; + +#ifdef FEAT_CLIENTSERVER + char_u *serverid = tv_get_string_chk(&argvars[0]); + + if (serverid != NULL && !check_restricted() && !check_secure()) + { + int timeout = 0; +# ifdef MSWIN + // The server's HWND is encoded in the 'id' parameter + long_u n = 0; +# endif + + if (argvars[1].v_type != VAR_UNKNOWN) + timeout = tv_get_number(&argvars[1]); + +# ifdef MSWIN + sscanf((char *)serverid, SCANF_HEX_LONG_U, &n); + if (n != 0) + r = serverGetReply((HWND)n, FALSE, TRUE, TRUE, timeout); + if (r == NULL) +# else + if (check_connection() == FAIL + || serverReadReply(X_DISPLAY, serverStrToWin(serverid), + &r, FALSE, timeout) < 0) +# endif + emsg(_("E277: Unable to read a server reply")); + } +#endif + rettv->v_type = VAR_STRING; + rettv->vval.v_string = r; +} + +/* + * "remote_send()" function + */ + void +f_remote_send(typval_T *argvars UNUSED, typval_T *rettv) +{ + rettv->v_type = VAR_STRING; + rettv->vval.v_string = NULL; +#ifdef FEAT_CLIENTSERVER + remote_common(argvars, rettv, FALSE); +#endif +} + +/* + * "remote_startserver()" function + */ + void +f_remote_startserver(typval_T *argvars UNUSED, typval_T *rettv UNUSED) +{ +#ifdef FEAT_CLIENTSERVER + char_u *server = tv_get_string_chk(&argvars[0]); + + if (server == NULL) + return; // type error; errmsg already given + if (serverName != NULL) + emsg(_("E941: already started a server")); + else + { +# ifdef FEAT_X11 + if (check_connection() == OK) + serverRegisterName(X_DISPLAY, server); +# else + serverSetName(server); +# endif + } +#else + emsg(_("E942: +clientserver feature not available")); +#endif +} + + void +f_server2client(typval_T *argvars UNUSED, typval_T *rettv) +{ +#ifdef FEAT_CLIENTSERVER + char_u buf[NUMBUFLEN]; + char_u *server = tv_get_string_chk(&argvars[0]); + char_u *reply = tv_get_string_buf_chk(&argvars[1], buf); + + rettv->vval.v_number = -1; + if (server == NULL || reply == NULL) + return; + if (check_restricted() || check_secure()) + return; +# ifdef FEAT_X11 + if (check_connection() == FAIL) + return; +# endif + + if (serverSendReply(server, reply) < 0) + { + emsg(_("E258: Unable to send to client")); + return; + } + rettv->vval.v_number = 0; +#else + rettv->vval.v_number = -1; +#endif +} + + void +f_serverlist(typval_T *argvars UNUSED, typval_T *rettv) +{ + char_u *r = NULL; + +#ifdef FEAT_CLIENTSERVER +# ifdef MSWIN + r = serverGetVimNames(); +# else + make_connection(); + if (X_DISPLAY != NULL) + r = serverGetVimNames(X_DISPLAY); +# endif +#endif + rettv->v_type = VAR_STRING; + rettv->vval.v_string = r; +} +#endif |