Annotation of src/usr.bin/tmux/status.c, Revision 1.75
1.75 ! nicm 1: /* $OpenBSD: status.c,v 1.74 2011/04/24 21:32:07 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>
20: #include <sys/time.h>
21:
22: #include <errno.h>
23: #include <limits.h>
24: #include <stdarg.h>
25: #include <stdlib.h>
26: #include <string.h>
27: #include <time.h>
28: #include <unistd.h>
29:
30: #include "tmux.h"
31:
1.48 nicm 32: char *status_redraw_get_left(
33: struct client *, time_t, int, struct grid_cell *, size_t *);
34: char *status_redraw_get_right(
35: struct client *, time_t, int, struct grid_cell *, size_t *);
1.71 nicm 36: char *status_find_job(struct client *, char **);
37: void status_job_free(void *);
1.38 nicm 38: void status_job_callback(struct job *);
1.47 nicm 39: char *status_print(
1.55 nicm 40: struct client *, struct winlink *, time_t, struct grid_cell *);
1.72 nicm 41: void status_replace1(struct client *, struct session *, struct winlink *,
42: struct window_pane *, char **, char **, char *, size_t, int);
1.42 nicm 43: void status_message_callback(int, short, void *);
1.1 nicm 44:
1.65 nicm 45: const char *status_prompt_up_history(u_int *);
46: const char *status_prompt_down_history(u_int *);
47: void status_prompt_add_history(const char *);
1.1 nicm 48: char *status_prompt_complete(const char *);
49:
1.65 nicm 50: /* Status prompt history. */
51: ARRAY_DECL(, char *) status_prompt_history = ARRAY_INITIALIZER;
52:
1.71 nicm 53: /* Status output tree. */
54: RB_GENERATE(status_out_tree, status_out, entry, status_out_cmp);
55:
56: /* Output tree comparison function. */
57: int
58: status_out_cmp(struct status_out *so1, struct status_out *so2)
59: {
60: return (strcmp(so1->cmd, so2->cmd));
61: }
62:
1.48 nicm 63: /* Retrieve options for left string. */
64: char *
65: status_redraw_get_left(struct client *c,
66: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
67: {
68: struct session *s = c->session;
69: char *left;
70: u_char fg, bg, attr;
71: size_t leftlen;
72:
73: fg = options_get_number(&s->options, "status-left-fg");
74: if (fg != 8)
75: colour_set_fg(gc, fg);
76: bg = options_get_number(&s->options, "status-left-bg");
77: if (bg != 8)
78: colour_set_bg(gc, bg);
79: attr = options_get_number(&s->options, "status-left-attr");
80: if (attr != 0)
81: gc->attr = attr;
82:
1.72 nicm 83: left = status_replace(c, NULL,
84: NULL, NULL, options_get_string(&s->options, "status-left"), t, 1);
1.48 nicm 85:
86: *size = options_get_number(&s->options, "status-left-length");
87: leftlen = screen_write_cstrlen(utf8flag, "%s", left);
88: if (leftlen < *size)
89: *size = leftlen;
90: return (left);
91: }
92:
93: /* Retrieve options for right string. */
94: char *
95: status_redraw_get_right(struct client *c,
96: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
97: {
98: struct session *s = c->session;
99: char *right;
100: u_char fg, bg, attr;
101: size_t rightlen;
102:
103: fg = options_get_number(&s->options, "status-right-fg");
104: if (fg != 8)
105: colour_set_fg(gc, fg);
106: bg = options_get_number(&s->options, "status-right-bg");
107: if (bg != 8)
108: colour_set_bg(gc, bg);
109: attr = options_get_number(&s->options, "status-right-attr");
110: if (attr != 0)
111: gc->attr = attr;
112:
1.72 nicm 113: right = status_replace(c, NULL,
114: NULL, NULL, options_get_string(&s->options, "status-right"), t, 1);
1.48 nicm 115:
116: *size = options_get_number(&s->options, "status-right-length");
117: rightlen = screen_write_cstrlen(utf8flag, "%s", right);
118: if (rightlen < *size)
119: *size = rightlen;
120: return (right);
121: }
122:
1.73 nicm 123: /* Set window at window list position. */
124: void
125: status_set_window_at(struct client *c, u_int x)
126: {
127: struct session *s = c->session;
128: struct winlink *wl;
129:
130: x += s->wlmouse;
131: RB_FOREACH(wl, winlinks, &s->windows) {
132: if (x < wl->status_width &&
133: session_select(s, wl->idx) == 0) {
134: server_redraw_session(s);
135: }
136: x -= wl->status_width + 1;
137: }
138: }
139:
1.1 nicm 140: /* Draw status for client on the last lines of given context. */
141: int
142: status_redraw(struct client *c)
143: {
1.48 nicm 144: struct screen_write_ctx ctx;
145: struct session *s = c->session;
146: struct winlink *wl;
147: struct screen old_status, window_list;
148: struct grid_cell stdgc, lgc, rgc, gc;
149: time_t t;
150: char *left, *right;
151: u_int offset, needed;
152: u_int wlstart, wlwidth, wlavailable, wloffset, wlsize;
153: size_t llen, rlen;
154: int larrow, rarrow, utf8flag;
1.1 nicm 155:
1.49 nicm 156: /* No status line? */
1.7 nicm 157: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
158: return (1);
1.48 nicm 159: left = right = NULL;
1.7 nicm 160: larrow = rarrow = 0;
1.1 nicm 161:
1.48 nicm 162: /* Update status timer. */
1.1 nicm 163: if (gettimeofday(&c->status_timer, NULL) != 0)
1.34 nicm 164: fatal("gettimeofday failed");
1.48 nicm 165: t = c->status_timer.tv_sec;
166:
167: /* Set up default colour. */
1.1 nicm 168: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.33 nicm 169: colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg"));
170: colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg"));
1.1 nicm 171: stdgc.attr |= options_get_number(&s->options, "status-attr");
172:
1.48 nicm 173: /* Create the target screen. */
174: memcpy(&old_status, &c->status, sizeof old_status);
175: screen_init(&c->status, c->tty.sx, 1, 0);
176: screen_write_start(&ctx, NULL, &c->status);
177: for (offset = 0; offset < c->tty.sx; offset++)
178: screen_write_putc(&ctx, &stdgc, ' ');
179: screen_write_stop(&ctx);
180:
181: /* If the height is one line, blank status line. */
182: if (c->tty.sy <= 1)
183: goto out;
1.1 nicm 184:
1.48 nicm 185: /* Get UTF-8 flag. */
1.3 nicm 186: utf8flag = options_get_number(&s->options, "status-utf8");
187:
1.48 nicm 188: /* Work out left and right strings. */
189: memcpy(&lgc, &stdgc, sizeof lgc);
190: left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen);
191: memcpy(&rgc, &stdgc, sizeof rgc);
192: right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen);
1.1 nicm 193:
194: /*
1.48 nicm 195: * Figure out how much space we have for the window list. If there
196: * isn't enough space, just show a blank status line.
1.1 nicm 197: */
1.55 nicm 198: needed = 0;
1.1 nicm 199: if (llen != 0)
1.48 nicm 200: needed += llen + 1;
1.1 nicm 201: if (rlen != 0)
1.48 nicm 202: needed += rlen + 1;
203: if (c->tty.sx == 0 || c->tty.sx <= needed)
204: goto out;
205: wlavailable = c->tty.sx - needed;
1.1 nicm 206:
1.48 nicm 207: /* Calculate the total size needed for the window list. */
208: wlstart = wloffset = wlwidth = 0;
1.1 nicm 209: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 210: if (wl->status_text != NULL)
211: xfree(wl->status_text);
212: memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell);
213: wl->status_text = status_print(c, wl, t, &wl->status_cell);
1.55 nicm 214: wl->status_width =
1.48 nicm 215: screen_write_cstrlen(utf8flag, "%s", wl->status_text);
216:
1.1 nicm 217: if (wl == s->curw)
1.48 nicm 218: wloffset = wlwidth;
219: wlwidth += wl->status_width + 1;
220: }
221:
222: /* Create a new screen for the window list. */
223: screen_init(&window_list, wlwidth, 1, 0);
224:
225: /* And draw the window list into it. */
226: screen_write_start(&ctx, NULL, &window_list);
227: RB_FOREACH(wl, winlinks, &s->windows) {
1.55 nicm 228: screen_write_cnputs(&ctx,
1.48 nicm 229: -1, &wl->status_cell, utf8flag, "%s", wl->status_text);
230: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 231: }
1.48 nicm 232: screen_write_stop(&ctx);
1.1 nicm 233:
1.48 nicm 234: /* If there is enough space for the total width, skip to draw now. */
235: if (wlwidth <= wlavailable)
1.1 nicm 236: goto draw;
237:
238: /* Find size of current window text. */
1.48 nicm 239: wlsize = s->curw->status_width;
1.1 nicm 240:
241: /*
1.48 nicm 242: * If the current window is already on screen, good to draw from the
1.1 nicm 243: * start and just leave off the end.
244: */
1.48 nicm 245: if (wloffset + wlsize < wlavailable) {
246: if (wlavailable > 0) {
247: rarrow = 1;
248: wlavailable--;
249: }
250: wlwidth = wlavailable;
251: } else {
252: /*
253: * Work out how many characters we need to omit from the
254: * start. There are wlavailable characters to fill, and
255: * wloffset + wlsize must be the last. So, the start character
256: * is wloffset + wlsize - wlavailable.
257: */
258: if (wlavailable > 0) {
259: larrow = 1;
260: wlavailable--;
261: }
1.55 nicm 262:
1.48 nicm 263: wlstart = wloffset + wlsize - wlavailable;
264: if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) {
1.1 nicm 265: rarrow = 1;
1.48 nicm 266: wlstart++;
267: wlavailable--;
1.1 nicm 268: }
1.48 nicm 269: wlwidth = wlavailable;
270: }
1.1 nicm 271:
1.48 nicm 272: /* Bail if anything is now too small too. */
273: if (wlwidth == 0 || wlavailable == 0) {
274: screen_free(&window_list);
275: goto out;
1.1 nicm 276: }
277:
278: /*
1.48 nicm 279: * Now the start position is known, work out the state of the left and
280: * right arrows.
1.1 nicm 281: */
282: offset = 0;
283: RB_FOREACH(wl, winlinks, &s->windows) {
1.63 nicm 284: if (wl->flags & WINLINK_ALERTFLAGS &&
285: larrow == 1 && offset < wlstart)
286: larrow = -1;
1.1 nicm 287:
1.48 nicm 288: offset += wl->status_width;
1.1 nicm 289:
1.63 nicm 290: if (wl->flags & WINLINK_ALERTFLAGS &&
291: rarrow == 1 && offset > wlstart + wlwidth)
292: rarrow = -1;
1.1 nicm 293: }
294:
1.48 nicm 295: draw:
1.55 nicm 296: /* Begin drawing. */
1.48 nicm 297: screen_write_start(&ctx, NULL, &c->status);
1.1 nicm 298:
1.48 nicm 299: /* Draw the left string and arrow. */
300: screen_write_cursormove(&ctx, 0, 0);
301: if (llen != 0) {
302: screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left);
1.5 nicm 303: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 304: }
305: if (larrow != 0) {
306: memcpy(&gc, &stdgc, sizeof gc);
307: if (larrow == -1)
308: gc.attr ^= GRID_ATTR_REVERSE;
309: screen_write_putc(&ctx, &gc, '<');
310: }
1.48 nicm 311:
312: /* Draw the right string and arrow. */
1.1 nicm 313: if (rarrow != 0) {
1.48 nicm 314: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0);
1.1 nicm 315: memcpy(&gc, &stdgc, sizeof gc);
316: if (rarrow == -1)
317: gc.attr ^= GRID_ATTR_REVERSE;
318: screen_write_putc(&ctx, &gc, '>');
1.48 nicm 319: } else
320: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0);
321: if (rlen != 0) {
322: screen_write_putc(&ctx, &stdgc, ' ');
323: screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right);
1.1 nicm 324: }
325:
1.48 nicm 326: /* Figure out the offset for the window list. */
1.58 nicm 327: if (llen != 0)
328: wloffset = llen + 1;
329: else
330: wloffset = 0;
1.48 nicm 331: if (wlwidth < wlavailable) {
332: switch (options_get_number(&s->options, "status-justify")) {
333: case 1: /* centered */
1.58 nicm 334: wloffset += (wlavailable - wlwidth) / 2;
1.48 nicm 335: break;
336: case 2: /* right */
1.58 nicm 337: wloffset += (wlavailable - wlwidth);
1.48 nicm 338: break;
339: }
340: }
341: if (larrow != 0)
342: wloffset++;
343:
344: /* Copy the window list. */
1.73 nicm 345: s->wlmouse = -wloffset + wlstart;
1.48 nicm 346: screen_write_cursormove(&ctx, wloffset, 0);
347: screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
1.55 nicm 348: screen_free(&window_list);
1.1 nicm 349:
1.48 nicm 350: screen_write_stop(&ctx);
1.1 nicm 351:
352: out:
353: if (left != NULL)
354: xfree(left);
355: if (right != NULL)
356: xfree(right);
357:
358: if (grid_compare(c->status.grid, old_status.grid) == 0) {
359: screen_free(&old_status);
360: return (0);
361: }
362: screen_free(&old_status);
363: return (1);
364: }
365:
1.46 nicm 366: /* Replace a single special sequence (prefixed by #). */
367: void
1.72 nicm 368: status_replace1(struct client *c, struct session *s, struct winlink *wl,
369: struct window_pane *wp, char **iptr, char **optr, char *out,
370: size_t outsize, int jobsflag)
371: {
372: char ch, tmp[256], *ptr, *endptr, *freeptr;
373: size_t ptrlen;
374: long limit;
1.46 nicm 375:
1.72 nicm 376: if (s == NULL)
377: s = c->session;
1.47 nicm 378: if (wl == NULL)
379: wl = s->curw;
1.72 nicm 380: if (wp == NULL)
381: wp = wl->window->active;
1.47 nicm 382:
1.46 nicm 383: errno = 0;
384: limit = strtol(*iptr, &endptr, 10);
385: if ((limit == 0 && errno != EINVAL) ||
386: (limit == LONG_MIN && errno != ERANGE) ||
1.55 nicm 387: (limit == LONG_MAX && errno != ERANGE) ||
1.46 nicm 388: limit != 0)
389: *iptr = endptr;
390: if (limit <= 0)
391: limit = LONG_MAX;
392:
393: freeptr = NULL;
394:
395: switch (*(*iptr)++) {
396: case '(':
397: if (!jobsflag) {
398: ch = ')';
399: goto skip_to;
400: }
1.71 nicm 401: if ((ptr = status_find_job(c, iptr)) == NULL)
1.46 nicm 402: return;
403: goto do_replace;
1.72 nicm 404: case 'D':
405: xsnprintf(tmp, sizeof tmp, "%%%u", wp->id);
406: ptr = tmp;
407: goto do_replace;
1.46 nicm 408: case 'H':
409: if (gethostname(tmp, sizeof tmp) != 0)
410: fatal("gethostname failed");
1.74 nicm 411: ptr = tmp;
412: goto do_replace;
413: case 'h':
414: if (gethostname(tmp, sizeof tmp) != 0)
415: fatal("gethostname failed");
416: if ((ptr = strchr(tmp, '.')) != NULL)
417: *ptr = '\0';
1.46 nicm 418: ptr = tmp;
419: goto do_replace;
420: case 'I':
421: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
422: ptr = tmp;
423: goto do_replace;
424: case 'P':
1.72 nicm 425: xsnprintf(
426: tmp, sizeof tmp, "%u", window_pane_index(wl->window, wp));
1.46 nicm 427: ptr = tmp;
428: goto do_replace;
429: case 'S':
430: ptr = s->name;
431: goto do_replace;
432: case 'T':
1.72 nicm 433: ptr = wp->base.title;
1.46 nicm 434: goto do_replace;
435: case 'W':
436: ptr = wl->window->name;
437: goto do_replace;
1.47 nicm 438: case 'F':
1.67 nicm 439: ptr = window_printable_flags(s, wl);
440: freeptr = ptr;
1.47 nicm 441: goto do_replace;
1.46 nicm 442: case '[':
1.55 nicm 443: /*
1.46 nicm 444: * Embedded style, handled at display time. Leave present and
445: * skip input until ].
446: */
447: ch = ']';
448: goto skip_to;
449: case '#':
1.49 nicm 450: *(*optr)++ = '#';
1.46 nicm 451: break;
452: }
453:
454: return;
1.55 nicm 455:
1.46 nicm 456: do_replace:
457: ptrlen = strlen(ptr);
458: if ((size_t) limit < ptrlen)
459: ptrlen = limit;
460:
461: if (*optr + ptrlen >= out + outsize - 1)
462: return;
463: while (ptrlen > 0 && *ptr != '\0') {
464: *(*optr)++ = *ptr++;
465: ptrlen--;
466: }
467:
468: if (freeptr != NULL)
469: xfree(freeptr);
470: return;
471:
472: skip_to:
473: *(*optr)++ = '#';
474:
475: (*iptr)--; /* include ch */
476: while (**iptr != ch && **iptr != '\0') {
477: if (*optr >= out + outsize - 1)
478: break;
479: *(*optr)++ = *(*iptr)++;
480: }
481: }
482:
483: /* Replace special sequences in fmt. */
484: char *
1.72 nicm 485: status_replace(struct client *c, struct session *s, struct winlink *wl,
486: struct window_pane *wp, const char *fmt, time_t t, int jobsflag)
1.46 nicm 487: {
1.1 nicm 488: static char out[BUFSIZ];
1.46 nicm 489: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 490:
1.1 nicm 491: strftime(in, sizeof in, fmt, localtime(&t));
492: in[(sizeof in) - 1] = '\0';
493:
494: iptr = in;
495: optr = out;
496:
497: while (*iptr != '\0') {
498: if (optr >= out + (sizeof out) - 1)
499: break;
1.46 nicm 500: ch = *iptr++;
501:
1.70 nicm 502: if (ch != '#' || *iptr == '\0') {
1.1 nicm 503: *optr++ = ch;
1.46 nicm 504: continue;
1.1 nicm 505: }
1.72 nicm 506: status_replace1(
507: c, s, wl, wp, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 508: }
509: *optr = '\0';
510:
511: return (xstrdup(out));
512: }
513:
1.46 nicm 514: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 515: char *
1.71 nicm 516: status_find_job(struct client *c, char **iptr)
1.1 nicm 517: {
1.71 nicm 518: struct status_out *so, so_find;
519: char *cmd;
520: int lastesc;
521: size_t len;
1.1 nicm 522:
523: if (**iptr == '\0')
524: return (NULL);
525: if (**iptr == ')') { /* no command given */
526: (*iptr)++;
527: return (NULL);
528: }
529:
530: cmd = xmalloc(strlen(*iptr) + 1);
531: len = 0;
532:
533: lastesc = 0;
534: for (; **iptr != '\0'; (*iptr)++) {
535: if (!lastesc && **iptr == ')')
536: break; /* unescaped ) is the end */
537: if (!lastesc && **iptr == '\\') {
538: lastesc = 1;
539: continue; /* skip \ if not escaped */
540: }
541: lastesc = 0;
542: cmd[len++] = **iptr;
543: }
1.38 nicm 544: if (**iptr == '\0') /* no terminating ) */ {
545: xfree(cmd);
546: return (NULL);
547: }
1.1 nicm 548: (*iptr)++; /* skip final ) */
549: cmd[len] = '\0';
550:
1.71 nicm 551: /* First try in the new tree. */
552: so_find.cmd = cmd;
553: so = RB_FIND(status_out_tree, &c->status_new, &so_find);
554: if (so != NULL && so->out != NULL)
555: return (so->out);
556:
557: /* If not found at all, start the job and add to the tree. */
558: if (so == NULL) {
559: job_run(cmd, status_job_callback, status_job_free, c);
560: c->references++;
561:
562: so = xmalloc(sizeof *so);
563: so->cmd = xstrdup(cmd);
564: so->out = NULL;
565: RB_INSERT(status_out_tree, &c->status_new, so);
566: }
567:
568: /* Lookup in the old tree. */
569: so_find.cmd = cmd;
570: so = RB_FIND(status_out_tree, &c->status_old, &so_find);
571: xfree(cmd);
572: if (so != NULL)
573: return (so->out);
574: return (NULL);
575: }
576:
577: /* Free job tree. */
578: void
579: status_free_jobs(struct status_out_tree *sotree)
580: {
581: struct status_out *so, *so_next;
582:
583: so_next = RB_MIN(status_out_tree, sotree);
584: while (so_next != NULL) {
585: so = so_next;
586: so_next = RB_NEXT(status_out_tree, sotree, so);
587:
588: RB_REMOVE(status_out_tree, sotree, so);
589: if (so->out != NULL)
590: xfree(so->out);
591: xfree(so->cmd);
592: xfree(so);
1.38 nicm 593: }
1.71 nicm 594: }
595:
596: /* Update jobs on status interval. */
597: void
598: status_update_jobs(struct client *c)
599: {
600: /* Free the old tree. */
601: status_free_jobs(&c->status_old);
602:
603: /* Move the new to old. */
604: memcpy(&c->status_old, &c->status_new, sizeof c->status_old);
605: RB_INIT(&c->status_new);
606: }
607:
608: /* Free status job. */
609: void
610: status_job_free(void *data)
611: {
612: struct client *c = data;
613:
614: c->references--;
1.38 nicm 615: }
1.1 nicm 616:
1.46 nicm 617: /* Job has finished: save its result. */
1.38 nicm 618: void
619: status_job_callback(struct job *job)
620: {
1.71 nicm 621: struct client *c = job->data;
622: struct status_out *so, so_find;
623: char *line, *buf;
624: size_t len;
625:
626: if (c->flags & CLIENT_DEAD)
627: return;
628:
629: so_find.cmd = job->cmd;
630: so = RB_FIND(status_out_tree, &c->status_new, &so_find);
631: if (so == NULL || so->out != NULL)
632: return;
1.38 nicm 633:
1.41 nicm 634: buf = NULL;
635: if ((line = evbuffer_readline(job->event->input)) == NULL) {
636: len = EVBUFFER_LENGTH(job->event->input);
637: buf = xmalloc(len + 1);
638: if (len != 0)
639: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
640: buf[len] = '\0';
1.71 nicm 641: } else
642: buf = xstrdup(line);
1.1 nicm 643:
1.71 nicm 644: so->out = buf;
1.75 ! nicm 645: server_status_client(c);
1.1 nicm 646: }
647:
1.46 nicm 648: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 649: char *
1.47 nicm 650: status_print(
651: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 652: {
1.33 nicm 653: struct options *oo = &wl->window->options;
1.47 nicm 654: struct session *s = c->session;
655: const char *fmt;
656: char *text;
1.33 nicm 657: u_char fg, bg, attr;
1.1 nicm 658:
1.33 nicm 659: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 660: if (fg != 8)
1.33 nicm 661: colour_set_fg(gc, fg);
662: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 663: if (bg != 8)
1.33 nicm 664: colour_set_bg(gc, bg);
665: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 666: if (attr != 0)
667: gc->attr = attr;
1.47 nicm 668: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 669: if (wl == s->curw) {
1.33 nicm 670: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 671: if (fg != 8)
1.33 nicm 672: colour_set_fg(gc, fg);
673: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 674: if (bg != 8)
1.33 nicm 675: colour_set_bg(gc, bg);
676: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 677: if (attr != 0)
678: gc->attr = attr;
1.47 nicm 679: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 680: }
1.1 nicm 681:
1.63 nicm 682: if (wl->flags & WINLINK_ALERTFLAGS) {
1.62 nicm 683: fg = options_get_number(oo, "window-status-alert-fg");
684: if (fg != 8)
685: colour_set_fg(gc, fg);
686: bg = options_get_number(oo, "window-status-alert-bg");
687: if (bg != 8)
688: colour_set_bg(gc, bg);
689: attr = options_get_number(oo, "window-status-alert-attr");
690: if (attr != 0)
691: gc->attr = attr;
692: }
1.1 nicm 693:
1.72 nicm 694: text = status_replace(c, NULL, wl, NULL, fmt, t, 1);
1.1 nicm 695: return (text);
696: }
697:
1.46 nicm 698: /* Set a status line message. */
1.10 nicm 699: void printflike2
700: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 701: {
1.44 nicm 702: struct timeval tv;
703: struct session *s = c->session;
704: struct message_entry *msg;
705: va_list ap;
706: int delay;
707: u_int i, limit;
1.1 nicm 708:
1.12 nicm 709: status_prompt_clear(c);
710: status_message_clear(c);
711:
1.28 nicm 712: va_start(ap, fmt);
713: xvasprintf(&c->message_string, fmt, ap);
714: va_end(ap);
715:
1.44 nicm 716: ARRAY_EXPAND(&c->message_log, 1);
717: msg = &ARRAY_LAST(&c->message_log);
718: msg->msg_time = time(NULL);
719: msg->msg = xstrdup(c->message_string);
720:
721: if (s == NULL)
722: limit = 0;
723: else
724: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 725: if (ARRAY_LENGTH(&c->message_log) > limit) {
726: limit = ARRAY_LENGTH(&c->message_log) - limit;
727: for (i = 0; i < limit; i++) {
728: msg = &ARRAY_FIRST(&c->message_log);
729: xfree(msg->msg);
730: ARRAY_REMOVE(&c->message_log, 0);
731: }
1.44 nicm 732: }
733:
1.1 nicm 734: delay = options_get_number(&c->session->options, "display-time");
735: tv.tv_sec = delay / 1000;
736: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 737:
1.42 nicm 738: evtimer_del(&c->message_timer);
739: evtimer_set(&c->message_timer, status_message_callback, c);
740: evtimer_add(&c->message_timer, &tv);
1.1 nicm 741:
742: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
743: c->flags |= CLIENT_STATUS;
744: }
745:
1.46 nicm 746: /* Clear status line message. */
1.1 nicm 747: void
748: status_message_clear(struct client *c)
749: {
750: if (c->message_string == NULL)
751: return;
752:
753: xfree(c->message_string);
754: c->message_string = NULL;
755:
756: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 757: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 758:
759: screen_reinit(&c->status);
1.42 nicm 760: }
761:
1.46 nicm 762: /* Clear status line message after timer expires. */
1.52 nicm 763: /* ARGSUSED */
1.42 nicm 764: void
765: status_message_callback(unused int fd, unused short event, void *data)
766: {
767: struct client *c = data;
768:
769: status_message_clear(c);
1.1 nicm 770: }
771:
772: /* Draw client message on status line of present else on last line. */
773: int
774: status_message_redraw(struct client *c)
775: {
776: struct screen_write_ctx ctx;
777: struct session *s = c->session;
778: struct screen old_status;
779: size_t len;
780: struct grid_cell gc;
1.51 nicm 781: int utf8flag;
1.1 nicm 782:
783: if (c->tty.sx == 0 || c->tty.sy == 0)
784: return (0);
785: memcpy(&old_status, &c->status, sizeof old_status);
786: screen_init(&c->status, c->tty.sx, 1, 0);
787:
1.51 nicm 788: utf8flag = options_get_number(&s->options, "status-utf8");
789:
790: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 791: if (len > c->tty.sx)
792: len = c->tty.sx;
793:
794: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 795: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
796: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 797: gc.attr |= options_get_number(&s->options, "message-attr");
798:
799: screen_write_start(&ctx, NULL, &c->status);
800:
801: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 802: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 803: for (; len < c->tty.sx; len++)
804: screen_write_putc(&ctx, &gc, ' ');
805:
806: screen_write_stop(&ctx);
807:
808: if (grid_compare(c->status.grid, old_status.grid) == 0) {
809: screen_free(&old_status);
810: return (0);
811: }
812: screen_free(&old_status);
813: return (1);
814: }
815:
1.46 nicm 816: /* Enable status line prompt. */
1.1 nicm 817: void
1.12 nicm 818: status_prompt_set(struct client *c, const char *msg,
819: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
820: void *data, int flags)
1.1 nicm 821: {
1.20 nicm 822: int keys;
823:
1.12 nicm 824: status_message_clear(c);
825: status_prompt_clear(c);
826:
1.1 nicm 827: c->prompt_string = xstrdup(msg);
828:
829: c->prompt_buffer = xstrdup("");
830: c->prompt_index = 0;
831:
1.12 nicm 832: c->prompt_callbackfn = callbackfn;
833: c->prompt_freefn = freefn;
1.1 nicm 834: c->prompt_data = data;
835:
836: c->prompt_hindex = 0;
837:
838: c->prompt_flags = flags;
839:
1.20 nicm 840: keys = options_get_number(&c->session->options, "status-keys");
841: if (keys == MODEKEY_EMACS)
1.21 nicm 842: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 843: else
1.21 nicm 844: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 845:
846: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
847: c->flags |= CLIENT_STATUS;
848: }
849:
1.46 nicm 850: /* Remove status line prompt. */
1.1 nicm 851: void
852: status_prompt_clear(struct client *c)
853: {
1.55 nicm 854: if (c->prompt_string == NULL)
1.1 nicm 855: return;
856:
1.12 nicm 857: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
858: c->prompt_freefn(c->prompt_data);
1.1 nicm 859:
860: xfree(c->prompt_string);
861: c->prompt_string = NULL;
862:
863: xfree(c->prompt_buffer);
864: c->prompt_buffer = NULL;
865:
866: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 867: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 868:
869: screen_reinit(&c->status);
1.27 nicm 870: }
871:
1.46 nicm 872: /* Update status line prompt with a new prompt string. */
1.27 nicm 873: void
874: status_prompt_update(struct client *c, const char *msg)
875: {
876: xfree(c->prompt_string);
877: c->prompt_string = xstrdup(msg);
878:
879: *c->prompt_buffer = '\0';
880: c->prompt_index = 0;
881:
882: c->prompt_hindex = 0;
883:
884: c->flags |= CLIENT_STATUS;
1.1 nicm 885: }
886:
887: /* Draw client prompt on status line of present else on last line. */
888: int
889: status_prompt_redraw(struct client *c)
890: {
1.51 nicm 891: struct screen_write_ctx ctx;
1.1 nicm 892: struct session *s = c->session;
893: struct screen old_status;
1.29 nicm 894: size_t i, size, left, len, off;
1.51 nicm 895: struct grid_cell gc, *gcp;
896: int utf8flag;
1.1 nicm 897:
898: if (c->tty.sx == 0 || c->tty.sy == 0)
899: return (0);
900: memcpy(&old_status, &c->status, sizeof old_status);
901: screen_init(&c->status, c->tty.sx, 1, 0);
902:
1.51 nicm 903: utf8flag = options_get_number(&s->options, "status-utf8");
904:
905: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 906: if (len > c->tty.sx)
907: len = c->tty.sx;
1.51 nicm 908: off = 0;
1.1 nicm 909:
910: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 911: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
912: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 913: gc.attr |= options_get_number(&s->options, "message-attr");
914:
915: screen_write_start(&ctx, NULL, &c->status);
916:
917: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 918: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 919:
920: left = c->tty.sx - len;
921: if (left != 0) {
1.51 nicm 922: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
923: if (c->prompt_index >= left) {
1.17 nicm 924: off = c->prompt_index - left + 1;
1.51 nicm 925: if (c->prompt_index == size)
1.1 nicm 926: left--;
927: size = left;
928: }
1.51 nicm 929: screen_write_nputs(
930: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 931:
1.55 nicm 932: for (i = len + size; i < c->tty.sx; i++)
933: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 934: }
935:
936: screen_write_stop(&ctx);
1.51 nicm 937:
938: /* Apply fake cursor. */
939: off = len + c->prompt_index - off;
940: gcp = grid_view_get_cell(c->status.grid, off, 0);
941: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 942:
943: if (grid_compare(c->status.grid, old_status.grid) == 0) {
944: screen_free(&old_status);
945: return (0);
946: }
947: screen_free(&old_status);
948: return (1);
949: }
950:
951: /* Handle keys in prompt. */
952: void
953: status_prompt_key(struct client *c, int key)
954: {
955: struct paste_buffer *pb;
1.30 nicm 956: char *s, *first, *last, word[64], swapc;
1.66 nicm 957: const char *histstr;
1.53 nicm 958: u_char ch;
1.1 nicm 959: size_t size, n, off, idx;
960:
961: size = strlen(c->prompt_buffer);
962: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 963: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 964: if (c->prompt_index > 0) {
965: c->prompt_index--;
966: c->flags |= CLIENT_STATUS;
967: }
968: break;
1.20 nicm 969: case MODEKEYEDIT_SWITCHMODEAPPEND:
970: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 971: if (c->prompt_index < size) {
972: c->prompt_index++;
973: c->flags |= CLIENT_STATUS;
974: }
975: break;
1.20 nicm 976: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 977: if (c->prompt_index != 0) {
978: c->prompt_index = 0;
979: c->flags |= CLIENT_STATUS;
980: }
981: break;
1.20 nicm 982: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 983: if (c->prompt_index != size) {
984: c->prompt_index = size;
985: c->flags |= CLIENT_STATUS;
986: }
987: break;
1.20 nicm 988: case MODEKEYEDIT_COMPLETE:
1.1 nicm 989: if (*c->prompt_buffer == '\0')
990: break;
991:
992: idx = c->prompt_index;
993: if (idx != 0)
994: idx--;
995:
996: /* Find the word we are in. */
997: first = c->prompt_buffer + idx;
998: while (first > c->prompt_buffer && *first != ' ')
999: first--;
1000: while (*first == ' ')
1001: first++;
1002: last = c->prompt_buffer + idx;
1003: while (*last != '\0' && *last != ' ')
1004: last++;
1005: while (*last == ' ')
1006: last--;
1007: if (*last != '\0')
1008: last++;
1009: if (last <= first ||
1010: ((size_t) (last - first)) > (sizeof word) - 1)
1011: break;
1012: memcpy(word, first, last - first);
1013: word[last - first] = '\0';
1014:
1015: /* And try to complete it. */
1016: if ((s = status_prompt_complete(word)) == NULL)
1017: break;
1018:
1019: /* Trim out word. */
1020: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
1021: memmove(first, last, n);
1022: size -= last - first;
1023:
1024: /* Insert the new word. */
1.55 nicm 1025: size += strlen(s);
1.1 nicm 1026: off = first - c->prompt_buffer;
1.55 nicm 1027: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
1.1 nicm 1028: first = c->prompt_buffer + off;
1.55 nicm 1029: memmove(first + strlen(s), first, n);
1030: memcpy(first, s, strlen(s));
1.1 nicm 1031:
1032: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 1033: xfree(s);
1.1 nicm 1034:
1035: c->flags |= CLIENT_STATUS;
1036: break;
1.20 nicm 1037: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 1038: if (c->prompt_index != 0) {
1039: if (c->prompt_index == size)
1040: c->prompt_buffer[--c->prompt_index] = '\0';
1041: else {
1042: memmove(c->prompt_buffer + c->prompt_index - 1,
1043: c->prompt_buffer + c->prompt_index,
1044: size + 1 - c->prompt_index);
1045: c->prompt_index--;
1046: }
1047: c->flags |= CLIENT_STATUS;
1048: }
1049: break;
1.55 nicm 1050: case MODEKEYEDIT_DELETE:
1.1 nicm 1051: if (c->prompt_index != size) {
1052: memmove(c->prompt_buffer + c->prompt_index,
1053: c->prompt_buffer + c->prompt_index + 1,
1054: size + 1 - c->prompt_index);
1.18 nicm 1055: c->flags |= CLIENT_STATUS;
1056: }
1.26 nicm 1057: break;
1058: case MODEKEYEDIT_DELETELINE:
1059: *c->prompt_buffer = '\0';
1060: c->prompt_index = 0;
1061: c->flags |= CLIENT_STATUS;
1.18 nicm 1062: break;
1.20 nicm 1063: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 1064: if (c->prompt_index < size) {
1065: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 1066: c->flags |= CLIENT_STATUS;
1067: }
1068: break;
1.20 nicm 1069: case MODEKEYEDIT_HISTORYUP:
1.66 nicm 1070: histstr = status_prompt_up_history(&c->prompt_hindex);
1071: if (histstr == NULL)
1.1 nicm 1072: break;
1073: xfree(c->prompt_buffer);
1.66 nicm 1074: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 1075: c->prompt_index = strlen(c->prompt_buffer);
1076: c->flags |= CLIENT_STATUS;
1077: break;
1.20 nicm 1078: case MODEKEYEDIT_HISTORYDOWN:
1.66 nicm 1079: histstr = status_prompt_down_history(&c->prompt_hindex);
1080: if (histstr == NULL)
1.65 nicm 1081: break;
1.1 nicm 1082: xfree(c->prompt_buffer);
1.66 nicm 1083: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 1084: c->prompt_index = strlen(c->prompt_buffer);
1085: c->flags |= CLIENT_STATUS;
1086: break;
1.20 nicm 1087: case MODEKEYEDIT_PASTE:
1.68 nicm 1088: if ((pb = paste_get_top(&global_buffers)) == NULL)
1.1 nicm 1089: break;
1.32 nicm 1090: for (n = 0; n < pb->size; n++) {
1.53 nicm 1091: ch = (u_char) pb->data[n];
1092: if (ch < 32 || ch == 127)
1.32 nicm 1093: break;
1094: }
1.1 nicm 1095:
1096: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1097: if (c->prompt_index == size) {
1098: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1099: c->prompt_index += n;
1100: c->prompt_buffer[c->prompt_index] = '\0';
1101: } else {
1102: memmove(c->prompt_buffer + c->prompt_index + n,
1103: c->prompt_buffer + c->prompt_index,
1104: size + 1 - c->prompt_index);
1105: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1106: c->prompt_index += n;
1107: }
1108:
1109: c->flags |= CLIENT_STATUS;
1.30 nicm 1110: break;
1111: case MODEKEYEDIT_TRANSPOSECHARS:
1112: idx = c->prompt_index;
1113: if (idx < size)
1114: idx++;
1115: if (idx >= 2) {
1116: swapc = c->prompt_buffer[idx - 2];
1117: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1118: c->prompt_buffer[idx - 1] = swapc;
1119: c->prompt_index = idx;
1120: c->flags |= CLIENT_STATUS;
1121: }
1.1 nicm 1122: break;
1.55 nicm 1123: case MODEKEYEDIT_ENTER:
1.25 nicm 1124: if (*c->prompt_buffer != '\0')
1.65 nicm 1125: status_prompt_add_history(c->prompt_buffer);
1.25 nicm 1126: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1127: status_prompt_clear(c);
1128: break;
1.20 nicm 1129: case MODEKEYEDIT_CANCEL:
1.12 nicm 1130: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1131: status_prompt_clear(c);
1132: break;
1.20 nicm 1133: case MODEKEY_OTHER:
1.61 nicm 1134: if ((key & 0xff00) != 0 || key < 32 || key == 127)
1.1 nicm 1135: break;
1136: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1137:
1138: if (c->prompt_index == size) {
1139: c->prompt_buffer[c->prompt_index++] = key;
1140: c->prompt_buffer[c->prompt_index] = '\0';
1141: } else {
1142: memmove(c->prompt_buffer + c->prompt_index + 1,
1143: c->prompt_buffer + c->prompt_index,
1144: size + 1 - c->prompt_index);
1145: c->prompt_buffer[c->prompt_index++] = key;
1146: }
1147:
1148: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1149: if (c->prompt_callbackfn(
1.1 nicm 1150: c->prompt_data, c->prompt_buffer) == 0)
1151: status_prompt_clear(c);
1152: }
1153:
1154: c->flags |= CLIENT_STATUS;
1155: break;
1156: default:
1157: break;
1158: }
1159: }
1160:
1.65 nicm 1161: /* Get previous line from the history. */
1162: const char *
1163: status_prompt_up_history(u_int *idx)
1164: {
1165: u_int size;
1166:
1167: /*
1168: * History runs from 0 to size - 1.
1169: *
1170: * Index is from 0 to size. Zero is empty.
1171: */
1172:
1173: size = ARRAY_LENGTH(&status_prompt_history);
1174: if (size == 0 || *idx == size)
1175: return (NULL);
1176: (*idx)++;
1177: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1178: }
1179:
1180: /* Get next line from the history. */
1181: const char *
1182: status_prompt_down_history(u_int *idx)
1183: {
1184: u_int size;
1185:
1186: size = ARRAY_LENGTH(&status_prompt_history);
1187: if (size == 0 || *idx == 0)
1188: return ("");
1189: (*idx)--;
1190: if (*idx == 0)
1191: return ("");
1192: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1193: }
1194:
1.1 nicm 1195: /* Add line to the history. */
1196: void
1.65 nicm 1197: status_prompt_add_history(const char *line)
1.1 nicm 1198: {
1.65 nicm 1199: u_int size;
1200:
1201: size = ARRAY_LENGTH(&status_prompt_history);
1202: if (size > 0 && strcmp(ARRAY_LAST(&status_prompt_history), line) == 0)
1.1 nicm 1203: return;
1204:
1.65 nicm 1205: if (size == PROMPT_HISTORY) {
1206: xfree(ARRAY_FIRST(&status_prompt_history));
1207: ARRAY_REMOVE(&status_prompt_history, 0);
1.1 nicm 1208: }
1209:
1.65 nicm 1210: ARRAY_ADD(&status_prompt_history, xstrdup(line));
1.1 nicm 1211: }
1212:
1213: /* Complete word. */
1214: char *
1215: status_prompt_complete(const char *s)
1216: {
1.69 nicm 1217: const struct cmd_entry **cmdent;
1218: const struct options_table_entry *oe;
1219: ARRAY_DECL(, const char *) list;
1220: char *prefix, *s2;
1221: u_int i;
1222: size_t j;
1.1 nicm 1223:
1224: if (*s == '\0')
1225: return (NULL);
1226:
1227: /* First, build a list of all the possible matches. */
1228: ARRAY_INIT(&list);
1229: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1230: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1231: ARRAY_ADD(&list, (*cmdent)->name);
1.56 nicm 1232: }
1.69 nicm 1233: for (oe = server_options_table; oe->name != NULL; oe++) {
1234: if (strncmp(oe->name, s, strlen(s)) == 0)
1235: ARRAY_ADD(&list, oe->name);
1236: }
1237: for (oe = session_options_table; oe->name != NULL; oe++) {
1238: if (strncmp(oe->name, s, strlen(s)) == 0)
1239: ARRAY_ADD(&list, oe->name);
1240: }
1241: for (oe = window_options_table; oe->name != NULL; oe++) {
1242: if (strncmp(oe->name, s, strlen(s)) == 0)
1243: ARRAY_ADD(&list, oe->name);
1.1 nicm 1244: }
1245:
1246: /* If none, bail now. */
1247: if (ARRAY_LENGTH(&list) == 0) {
1248: ARRAY_FREE(&list);
1249: return (NULL);
1250: }
1251:
1252: /* If an exact match, return it, with a trailing space. */
1253: if (ARRAY_LENGTH(&list) == 1) {
1254: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1255: ARRAY_FREE(&list);
1256: return (s2);
1257: }
1258:
1259: /* Now loop through the list and find the longest common prefix. */
1260: prefix = xstrdup(ARRAY_FIRST(&list));
1261: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1262: s = ARRAY_ITEM(&list, i);
1263:
1264: j = strlen(s);
1265: if (j > strlen(prefix))
1266: j = strlen(prefix);
1267: for (; j > 0; j--) {
1268: if (prefix[j - 1] != s[j - 1])
1269: prefix[j - 1] = '\0';
1270: }
1271: }
1272:
1273: ARRAY_FREE(&list);
1274: return (prefix);
1275: }
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