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Annotation of src/usr.bin/tmux/control.c, Revision 1.8

1.8     ! nicm        1: /* $OpenBSD: control.c,v 1.7 2013/03/22 15:54:29 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2012 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  * Copyright (c) 2012 George Nachman <tmux@georgester.com>
                      6:  *
                      7:  * Permission to use, copy, modify, and distribute this software for any
                      8:  * purpose with or without fee is hereby granted, provided that the above
                      9:  * copyright notice and this permission notice appear in all copies.
                     10:  *
                     11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     15:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     16:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     17:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     18:  */
                     19:
                     20: #include <sys/types.h>
                     21:
                     22: #include <event.h>
1.2       nicm       23: #include <stdlib.h>
1.1       nicm       24: #include <string.h>
                     25:
                     26: #include "tmux.h"
                     27:
                     28: /* Write a line. */
                     29: void printflike2
                     30: control_write(struct client *c, const char *fmt, ...)
                     31: {
                     32:        va_list          ap;
                     33:
                     34:        va_start(ap, fmt);
                     35:        evbuffer_add_vprintf(c->stdout_data, fmt, ap);
                     36:        va_end(ap);
                     37:
1.4       nicm       38:        evbuffer_add(c->stdout_data, "\n", 1);
                     39:        server_push_stdout(c);
                     40: }
                     41:
                     42: /* Write a buffer, adding a terminal newline. Empties buffer. */
                     43: void
                     44: control_write_buffer(struct client *c, struct evbuffer *buffer)
                     45: {
                     46:        evbuffer_add_buffer(c->stdout_data, buffer);
1.1       nicm       47:        evbuffer_add(c->stdout_data, "\n", 1);
                     48:        server_push_stdout(c);
                     49: }
                     50:
                     51: /* Control input callback. Read lines and fire commands. */
                     52: void
                     53: control_callback(struct client *c, int closed, unused void *data)
                     54: {
                     55:        char            *line, *cause;
                     56:        struct cmd_list *cmdlist;
                     57:
                     58:        if (closed)
                     59:                c->flags |= CLIENT_EXIT;
                     60:
                     61:        for (;;) {
                     62:                line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
                     63:                if (line == NULL)
                     64:                        break;
                     65:                if (*line == '\0') { /* empty line exit */
                     66:                        c->flags |= CLIENT_EXIT;
                     67:                        break;
                     68:                }
                     69:
1.8     ! nicm       70:                if (cmd_string_parse(line, &cmdlist, NULL, 0, &cause) != 0) {
1.1       nicm       71:                        control_write(c, "%%error in line \"%s\": %s", line,
                     72:                            cause);
1.2       nicm       73:                        free(cause);
1.1       nicm       74:                } else {
1.8     ! nicm       75:                        cmdq_run(c->cmdq, cmdlist);
1.1       nicm       76:                        cmd_list_free(cmdlist);
                     77:                }
                     78:
1.2       nicm       79:                free(line);
1.1       nicm       80:        }
                     81: }