Annotation of src/usr.bin/tmux/server-msg.c, Revision 1.23
1.23 ! nicm 1: /* $OpenBSD: server-msg.c,v 1.22 2009/09/24 07:02:56 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
1.19 nicm 20: #include <sys/ioctl.h>
1.1 nicm 21:
22: #include <errno.h>
1.21 nicm 23: #include <paths.h>
1.1 nicm 24: #include <stdlib.h>
25: #include <string.h>
26: #include <time.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
1.9 nicm 31: void server_msg_command(struct client *, struct msg_command_data *);
1.13 nicm 32: void server_msg_identify(struct client *, struct msg_identify_data *, int);
1.21 nicm 33: void server_msg_shell(struct client *);
1.9 nicm 34:
35: void printflike2 server_msg_command_error(struct cmd_ctx *, const char *, ...);
36: void printflike2 server_msg_command_print(struct cmd_ctx *, const char *, ...);
37: void printflike2 server_msg_command_info(struct cmd_ctx *, const char *, ...);
1.1 nicm 38:
39: int
40: server_msg_dispatch(struct client *c)
41: {
1.11 nicm 42: struct imsg imsg;
1.9 nicm 43: struct msg_command_data commanddata;
44: struct msg_identify_data identifydata;
1.10 nicm 45: struct msg_environ_data environdata;
1.11 nicm 46: ssize_t n, datalen;
47:
48: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
49: return (-1);
1.1 nicm 50:
51: for (;;) {
1.11 nicm 52: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
53: return (-1);
54: if (n == 0)
1.1 nicm 55: return (0);
1.11 nicm 56: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
57:
58: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
59: server_write_client(c, MSG_VERSION, NULL, 0);
60: c->flags |= CLIENT_BAD;
61: imsg_free(&imsg);
62: continue;
63: }
1.1 nicm 64:
1.11 nicm 65: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
66: switch (imsg.hdr.type) {
1.9 nicm 67: case MSG_COMMAND:
1.11 nicm 68: if (datalen != sizeof commanddata)
1.9 nicm 69: fatalx("bad MSG_COMMAND size");
1.11 nicm 70: memcpy(&commanddata, imsg.data, sizeof commanddata);
1.9 nicm 71:
72: server_msg_command(c, &commanddata);
73: break;
74: case MSG_IDENTIFY:
1.11 nicm 75: if (datalen != sizeof identifydata)
1.9 nicm 76: fatalx("bad MSG_IDENTIFY size");
1.18 nicm 77: if (imsg.fd == -1)
78: fatalx("MSG_IDENTIFY missing fd");
1.11 nicm 79: memcpy(&identifydata, imsg.data, sizeof identifydata);
1.9 nicm 80:
1.13 nicm 81: server_msg_identify(c, &identifydata, imsg.fd);
1.9 nicm 82: break;
83: case MSG_RESIZE:
1.19 nicm 84: if (datalen != 0)
1.9 nicm 85: fatalx("bad MSG_RESIZE size");
86:
1.19 nicm 87: tty_resize(&c->tty);
88: recalculate_sizes();
89: server_redraw_client(c);
1.9 nicm 90: break;
91: case MSG_EXITING:
1.11 nicm 92: if (datalen != 0)
1.9 nicm 93: fatalx("bad MSG_EXITING size");
94:
95: c->session = NULL;
1.12 nicm 96: tty_close(&c->tty);
1.9 nicm 97: server_write_client(c, MSG_EXITED, NULL, 0);
98: break;
1.20 nicm 99: case MSG_WAKEUP:
1.9 nicm 100: case MSG_UNLOCK:
1.11 nicm 101: if (datalen != 0)
1.9 nicm 102: fatalx("bad MSG_WAKEUP size");
103:
104: c->flags &= ~CLIENT_SUSPENDED;
105: tty_start_tty(&c->tty);
106: server_redraw_client(c);
1.22 nicm 107: recalculate_sizes();
1.23 ! nicm 108: if (c->session != NULL)
! 109: c->session->activity = time(NULL);
1.10 nicm 110: break;
111: case MSG_ENVIRON:
1.11 nicm 112: if (datalen != sizeof environdata)
1.10 nicm 113: fatalx("bad MSG_ENVIRON size");
1.11 nicm 114: memcpy(&environdata, imsg.data, sizeof environdata);
1.10 nicm 115:
116: environdata.var[(sizeof environdata.var) - 1] = '\0';
117: if (strchr(environdata.var, '=') != NULL)
118: environ_put(&c->environ, environdata.var);
1.9 nicm 119: break;
1.21 nicm 120: case MSG_SHELL:
121: if (datalen != 0)
122: fatalx("bad MSG_SHELL size");
123:
124: server_msg_shell(c);
125: break;
1.9 nicm 126: default:
127: fatalx("unexpected message");
1.1 nicm 128: }
1.11 nicm 129:
130: imsg_free(&imsg);
1.1 nicm 131: }
132: }
133:
134: void printflike2
1.9 nicm 135: server_msg_command_error(struct cmd_ctx *ctx, const char *fmt, ...)
1.1 nicm 136: {
1.7 nicm 137: struct msg_print_data data;
138: va_list ap;
1.1 nicm 139:
140: va_start(ap, fmt);
1.7 nicm 141: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
1.1 nicm 142: va_end(ap);
143:
1.7 nicm 144: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
1.1 nicm 145: }
146:
147: void printflike2
1.9 nicm 148: server_msg_command_print(struct cmd_ctx *ctx, const char *fmt, ...)
1.1 nicm 149: {
1.7 nicm 150: struct msg_print_data data;
151: va_list ap;
1.1 nicm 152:
153: va_start(ap, fmt);
1.7 nicm 154: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
1.1 nicm 155: va_end(ap);
156:
1.7 nicm 157: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
1.1 nicm 158: }
159:
160: void printflike2
1.9 nicm 161: server_msg_command_info(struct cmd_ctx *ctx, const char *fmt, ...)
1.1 nicm 162: {
1.7 nicm 163: struct msg_print_data data;
164: va_list ap;
1.1 nicm 165:
166: if (be_quiet)
167: return;
168:
169: va_start(ap, fmt);
1.7 nicm 170: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
1.1 nicm 171: va_end(ap);
172:
1.7 nicm 173: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
1.1 nicm 174: }
175:
1.6 nicm 176: void
1.9 nicm 177: server_msg_command(struct client *c, struct msg_command_data *data)
1.1 nicm 178: {
1.9 nicm 179: struct cmd_ctx ctx;
180: struct cmd_list *cmdlist = NULL;
181: struct cmd *cmd;
182: int argc;
183: char **argv, *cause;
1.1 nicm 184:
1.23 ! nicm 185: if (c->session != NULL)
! 186: c->session->activity = time(NULL);
1.1 nicm 187:
1.9 nicm 188: ctx.error = server_msg_command_error;
189: ctx.print = server_msg_command_print;
190: ctx.info = server_msg_command_info;
1.1 nicm 191:
1.9 nicm 192: ctx.msgdata = data;
1.1 nicm 193: ctx.curclient = NULL;
194:
195: ctx.cmdclient = c;
196:
1.9 nicm 197: argc = data->argc;
198: data->argv[(sizeof data->argv) - 1] = '\0';
199: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
200: server_msg_command_error(&ctx, "command too long");
1.7 nicm 201: goto error;
202: }
203:
204: if (argc == 0) {
205: argc = 1;
206: argv = xcalloc(1, sizeof *argv);
207: *argv = xstrdup("new-session");
208: }
209:
210: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
1.9 nicm 211: server_msg_command_error(&ctx, "%s", cause);
1.7 nicm 212: cmd_free_argv(argc, argv);
213: goto error;
214: }
215: cmd_free_argv(argc, argv);
216:
1.9 nicm 217: if (data->pid != -1) {
1.1 nicm 218: TAILQ_FOREACH(cmd, cmdlist, qentry) {
219: if (cmd->entry->flags & CMD_CANTNEST) {
1.9 nicm 220: server_msg_command_error(&ctx,
1.1 nicm 221: "sessions should be nested with care. "
222: "unset $TMUX to force");
1.7 nicm 223: goto error;
1.1 nicm 224: }
225: }
226: }
227:
228: if (cmd_list_exec(cmdlist, &ctx) != 1)
229: server_write_client(c, MSG_EXIT, NULL, 0);
230: cmd_list_free(cmdlist);
1.7 nicm 231: return;
232:
233: error:
234: if (cmdlist != NULL)
235: cmd_list_free(cmdlist);
236: server_write_client(c, MSG_EXIT, NULL, 0);
1.1 nicm 237: }
238:
1.6 nicm 239: void
1.13 nicm 240: server_msg_identify(struct client *c, struct msg_identify_data *data, int fd)
1.1 nicm 241: {
242: c->cwd = NULL;
1.9 nicm 243: data->cwd[(sizeof data->cwd) - 1] = '\0';
244: if (*data->cwd != '\0')
245: c->cwd = xstrdup(data->cwd);
246:
247: data->term[(sizeof data->term) - 1] = '\0';
1.18 nicm 248: tty_init(&c->tty, fd, data->term);
1.9 nicm 249: if (data->flags & IDENTIFY_UTF8)
1.1 nicm 250: c->tty.flags |= TTY_UTF8;
1.9 nicm 251: if (data->flags & IDENTIFY_256COLOURS)
1.1 nicm 252: c->tty.term_flags |= TERM_256COLOURS;
1.9 nicm 253: else if (data->flags & IDENTIFY_88COLOURS)
1.1 nicm 254: c->tty.term_flags |= TERM_88COLOURS;
1.9 nicm 255: if (data->flags & IDENTIFY_HASDEFAULTS)
1.1 nicm 256: c->tty.term_flags |= TERM_HASDEFAULTS;
1.18 nicm 257:
1.19 nicm 258: tty_resize(&c->tty);
1.5 nicm 259:
1.1 nicm 260: c->flags |= CLIENT_TERMINAL;
1.21 nicm 261: }
262:
263: void
264: server_msg_shell(struct client *c)
265: {
266: struct msg_shell_data data;
267: const char *shell;
268:
269: shell = options_get_string(&global_s_options, "default-shell");
270:
271: if (*shell == '\0' || areshell(shell))
272: shell = _PATH_BSHELL;
273: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
274: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
275:
276: server_write_client(c, MSG_SHELL, &data, sizeof data);
277: c->flags |= CLIENT_BAD; /* it will die after exec */
1.1 nicm 278: }
![[BACK]](/icons/back.gif){kind=icon}
Return to server-msg.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux