Annotation of src/usr.bin/tmux/format.c, Revision 1.112
1.112 ! nicm 1: /* $OpenBSD: format.c,v 1.111 2016/10/16 19:04:05 nicm Exp $ */
1.1 nicm 2:
3: /*
1.104 nicm 4: * Copyright (c) 2011 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.55 nicm 20: #include <sys/wait.h>
1.1 nicm 21:
1.30 nicm 22: #include <ctype.h>
23: #include <errno.h>
1.87 nicm 24: #include <libgen.h>
1.1 nicm 25: #include <netdb.h>
26: #include <stdarg.h>
1.9 nicm 27: #include <stdlib.h>
1.1 nicm 28: #include <string.h>
29: #include <time.h>
30: #include <unistd.h>
31:
32: #include "tmux.h"
33:
34: /*
35: * Build a list of key-value pairs and use them to expand #{key} entries in a
36: * string.
37: */
38:
1.79 nicm 39: struct format_entry;
40: typedef void (*format_cb)(struct format_tree *, struct format_entry *);
41:
1.108 nicm 42: static void format_job_callback(struct job *);
43: static char *format_job_get(struct format_tree *, const char *);
44: static void format_job_timer(int, short, void *);
45:
46: static void format_cb_host(struct format_tree *, struct format_entry *);
47: static void format_cb_host_short(struct format_tree *,
48: struct format_entry *);
49: static void format_cb_pid(struct format_tree *, struct format_entry *);
50: static void format_cb_session_alerts(struct format_tree *,
51: struct format_entry *);
52: static void format_cb_window_layout(struct format_tree *,
53: struct format_entry *);
54: static void format_cb_window_visible_layout(struct format_tree *,
55: struct format_entry *);
56: static void format_cb_start_command(struct format_tree *,
57: struct format_entry *);
58: static void format_cb_current_command(struct format_tree *,
59: struct format_entry *);
60: static void format_cb_history_bytes(struct format_tree *,
61: struct format_entry *);
62: static void format_cb_pane_tabs(struct format_tree *,
63: struct format_entry *);
64:
65: static char *format_find(struct format_tree *, const char *, int);
66: static void format_add_cb(struct format_tree *, const char *, format_cb);
67: static void format_add_tv(struct format_tree *, const char *,
68: struct timeval *);
69: static int format_replace(struct format_tree *, const char *, size_t,
70: char **, size_t *, size_t *);
71:
72: static void format_defaults_session(struct format_tree *,
73: struct session *);
74: static void format_defaults_client(struct format_tree *, struct client *);
75: static void format_defaults_winlink(struct format_tree *, struct session *,
76: struct winlink *);
1.1 nicm 77:
1.68 nicm 78: /* Entry in format job tree. */
79: struct format_job {
80: const char *cmd;
81:
82: time_t last;
83: char *out;
84:
85: struct job *job;
86: int status;
87:
88: RB_ENTRY(format_job) entry;
89: };
90:
91: /* Format job tree. */
1.108 nicm 92: static struct event format_job_event;
93: static int format_job_cmp(struct format_job *, struct format_job *);
1.109 nicm 94: static RB_HEAD(format_job_tree, format_job) format_jobs = RB_INITIALIZER();
1.108 nicm 95: RB_GENERATE_STATIC(format_job_tree, format_job, entry, format_job_cmp);
1.68 nicm 96:
97: /* Format job tree comparison function. */
1.108 nicm 98: static int
1.68 nicm 99: format_job_cmp(struct format_job *fj1, struct format_job *fj2)
100: {
101: return (strcmp(fj1->cmd, fj2->cmd));
102: }
103:
1.87 nicm 104: /* Format modifiers. */
105: #define FORMAT_TIMESTRING 0x1
106: #define FORMAT_BASENAME 0x2
107: #define FORMAT_DIRNAME 0x4
1.98 nicm 108: #define FORMAT_SUBSTITUTE 0x8
1.87 nicm 109:
1.54 nicm 110: /* Entry in format tree. */
111: struct format_entry {
1.79 nicm 112: char *key;
113: char *value;
1.87 nicm 114: time_t t;
1.79 nicm 115: format_cb cb;
116: RB_ENTRY(format_entry) entry;
1.54 nicm 117: };
118:
1.68 nicm 119: /* Format entry tree. */
1.54 nicm 120: struct format_tree {
1.79 nicm 121: struct window *w;
122: struct session *s;
123: struct window_pane *wp;
1.54 nicm 124:
1.84 nicm 125: int flags;
1.68 nicm 126:
127: RB_HEAD(format_entry_tree, format_entry) tree;
1.54 nicm 128: };
1.108 nicm 129: static int format_entry_cmp(struct format_entry *, struct format_entry *);
130: RB_GENERATE_STATIC(format_entry_tree, format_entry, entry, format_entry_cmp);
1.54 nicm 131:
1.68 nicm 132: /* Format entry tree comparison function. */
1.108 nicm 133: static int
1.68 nicm 134: format_entry_cmp(struct format_entry *fe1, struct format_entry *fe2)
1.1 nicm 135: {
136: return (strcmp(fe1->key, fe2->key));
137: }
138:
1.25 nicm 139: /* Single-character uppercase aliases. */
1.108 nicm 140: static const char *format_upper[] = {
1.1 nicm 141: NULL, /* A */
142: NULL, /* B */
143: NULL, /* C */
144: "pane_id", /* D */
145: NULL, /* E */
146: "window_flags", /* F */
147: NULL, /* G */
148: "host", /* H */
149: "window_index", /* I */
150: NULL, /* J */
151: NULL, /* K */
152: NULL, /* L */
153: NULL, /* M */
154: NULL, /* N */
155: NULL, /* O */
156: "pane_index", /* P */
157: NULL, /* Q */
158: NULL, /* R */
159: "session_name", /* S */
160: "pane_title", /* T */
161: NULL, /* U */
162: NULL, /* V */
163: "window_name", /* W */
164: NULL, /* X */
165: NULL, /* Y */
166: NULL /* Z */
167: };
168:
1.25 nicm 169: /* Single-character lowercase aliases. */
1.108 nicm 170: static const char *format_lower[] = {
1.25 nicm 171: NULL, /* a */
172: NULL, /* b */
173: NULL, /* c */
174: NULL, /* d */
175: NULL, /* e */
176: NULL, /* f */
177: NULL, /* g */
178: "host_short", /* h */
179: NULL, /* i */
180: NULL, /* j */
181: NULL, /* k */
182: NULL, /* l */
183: NULL, /* m */
184: NULL, /* n */
185: NULL, /* o */
186: NULL, /* p */
187: NULL, /* q */
188: NULL, /* r */
189: NULL, /* s */
190: NULL, /* t */
191: NULL, /* u */
192: NULL, /* v */
193: NULL, /* w */
194: NULL, /* x */
195: NULL, /* y */
196: NULL /* z */
197: };
198:
1.68 nicm 199: /* Format job callback. */
1.108 nicm 200: static void
1.68 nicm 201: format_job_callback(struct job *job)
202: {
203: struct format_job *fj = job->data;
204: char *line, *buf;
205: size_t len;
206: struct client *c;
207:
208: fj->job = NULL;
209: free(fj->out);
210:
211: buf = NULL;
212: if ((line = evbuffer_readline(job->event->input)) == NULL) {
213: len = EVBUFFER_LENGTH(job->event->input);
214: buf = xmalloc(len + 1);
215: if (len != 0)
216: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
217: buf[len] = '\0';
218: } else
219: buf = line;
220: fj->out = buf;
221:
222: if (fj->status) {
223: TAILQ_FOREACH(c, &clients, entry)
224: server_status_client(c);
225: fj->status = 0;
226: }
1.77 nicm 227:
228: log_debug("%s: %s: %s", __func__, fj->cmd, fj->out);
1.68 nicm 229: }
230:
231: /* Find a job. */
1.108 nicm 232: static char *
1.68 nicm 233: format_job_get(struct format_tree *ft, const char *cmd)
234: {
235: struct format_job fj0, *fj;
1.84 nicm 236: time_t t;
1.68 nicm 237:
238: fj0.cmd = cmd;
1.82 nicm 239: if ((fj = RB_FIND(format_job_tree, &format_jobs, &fj0)) == NULL) {
1.68 nicm 240: fj = xcalloc(1, sizeof *fj);
241: fj->cmd = xstrdup(cmd);
242:
243: xasprintf(&fj->out, "<'%s' not ready>", fj->cmd);
244:
245: RB_INSERT(format_job_tree, &format_jobs, fj);
246: }
247:
1.84 nicm 248: t = time(NULL);
249: if (fj->job == NULL && ((ft->flags & FORMAT_FORCE) || fj->last != t)) {
1.92 nicm 250: fj->job = job_run(fj->cmd, NULL, NULL, format_job_callback,
1.68 nicm 251: NULL, fj);
252: if (fj->job == NULL) {
253: free(fj->out);
254: xasprintf(&fj->out, "<'%s' didn't start>", fj->cmd);
255: }
1.84 nicm 256: fj->last = t;
1.68 nicm 257: }
1.84 nicm 258:
259: if (ft->flags & FORMAT_STATUS)
260: fj->status = 1;
1.68 nicm 261:
1.86 nicm 262: return (format_expand(ft, fj->out));
1.68 nicm 263: }
264:
265: /* Remove old jobs. */
1.108 nicm 266: static void
1.99 nicm 267: format_job_timer(__unused int fd, __unused short events, __unused void *arg)
1.68 nicm 268: {
269: struct format_job *fj, *fj1;
270: time_t now;
1.77 nicm 271: struct timeval tv = { .tv_sec = 60 };
1.68 nicm 272:
273: now = time(NULL);
274: RB_FOREACH_SAFE(fj, format_job_tree, &format_jobs, fj1) {
275: if (fj->last > now || now - fj->last < 3600)
276: continue;
277: RB_REMOVE(format_job_tree, &format_jobs, fj);
278:
1.77 nicm 279: log_debug("%s: %s", __func__, fj->cmd);
280:
1.68 nicm 281: if (fj->job != NULL)
282: job_free(fj->job);
283:
1.78 nicm 284: free((void *)fj->cmd);
1.68 nicm 285: free(fj->out);
286:
287: free(fj);
288: }
1.77 nicm 289:
290: evtimer_del(&format_job_event);
291: evtimer_add(&format_job_event, &tv);
1.68 nicm 292: }
293:
1.79 nicm 294: /* Callback for host. */
1.108 nicm 295: static void
1.99 nicm 296: format_cb_host(__unused struct format_tree *ft, struct format_entry *fe)
1.79 nicm 297: {
298: char host[HOST_NAME_MAX + 1];
299:
300: if (gethostname(host, sizeof host) != 0)
301: fe->value = xstrdup("");
302: else
303: fe->value = xstrdup(host);
304: }
305:
306: /* Callback for host_short. */
1.108 nicm 307: static void
1.99 nicm 308: format_cb_host_short(__unused struct format_tree *ft, struct format_entry *fe)
1.79 nicm 309: {
310: char host[HOST_NAME_MAX + 1], *cp;
311:
312: if (gethostname(host, sizeof host) != 0)
313: fe->value = xstrdup("");
314: else {
315: if ((cp = strchr(host, '.')) != NULL)
316: *cp = '\0';
317: fe->value = xstrdup(host);
318: }
319: }
320:
321: /* Callback for pid. */
1.108 nicm 322: static void
1.99 nicm 323: format_cb_pid(__unused struct format_tree *ft, struct format_entry *fe)
1.79 nicm 324: {
325: xasprintf(&fe->value, "%ld", (long)getpid());
326: }
327:
1.80 nicm 328: /* Callback for session_alerts. */
1.108 nicm 329: static void
1.80 nicm 330: format_cb_session_alerts(struct format_tree *ft, struct format_entry *fe)
331: {
332: struct session *s = ft->s;
333: struct winlink *wl;
334: char alerts[256], tmp[16];
335:
336: if (s == NULL)
337: return;
338:
339: *alerts = '\0';
340: RB_FOREACH(wl, winlinks, &s->windows) {
341: if ((wl->flags & WINLINK_ALERTFLAGS) == 0)
342: continue;
343: xsnprintf(tmp, sizeof tmp, "%u", wl->idx);
344:
345: if (*alerts != '\0')
346: strlcat(alerts, ",", sizeof alerts);
347: strlcat(alerts, tmp, sizeof alerts);
348: if (wl->flags & WINLINK_ACTIVITY)
349: strlcat(alerts, "#", sizeof alerts);
350: if (wl->flags & WINLINK_BELL)
351: strlcat(alerts, "!", sizeof alerts);
352: if (wl->flags & WINLINK_SILENCE)
353: strlcat(alerts, "~", sizeof alerts);
354: }
355: fe->value = xstrdup(alerts);
356: }
357:
358: /* Callback for window_layout. */
1.108 nicm 359: static void
1.80 nicm 360: format_cb_window_layout(struct format_tree *ft, struct format_entry *fe)
361: {
362: struct window *w = ft->w;
363:
364: if (w == NULL)
365: return;
366:
367: if (w->saved_layout_root != NULL)
368: fe->value = layout_dump(w->saved_layout_root);
369: else
370: fe->value = layout_dump(w->layout_root);
371: }
372:
1.96 nicm 373: /* Callback for window_visible_layout. */
1.108 nicm 374: static void
1.96 nicm 375: format_cb_window_visible_layout(struct format_tree *ft, struct format_entry *fe)
376: {
377: struct window *w = ft->w;
378:
379: if (w == NULL)
380: return;
381:
382: fe->value = layout_dump(w->layout_root);
383: }
384:
1.79 nicm 385: /* Callback for pane_start_command. */
1.108 nicm 386: static void
1.79 nicm 387: format_cb_start_command(struct format_tree *ft, struct format_entry *fe)
388: {
389: struct window_pane *wp = ft->wp;
390:
391: if (wp == NULL)
392: return;
393:
394: fe->value = cmd_stringify_argv(wp->argc, wp->argv);
395: }
396:
397: /* Callback for pane_current_command. */
1.108 nicm 398: static void
1.79 nicm 399: format_cb_current_command(struct format_tree *ft, struct format_entry *fe)
400: {
401: struct window_pane *wp = ft->wp;
402: char *cmd;
403:
404: if (wp == NULL)
405: return;
406:
407: cmd = get_proc_name(wp->fd, wp->tty);
408: if (cmd == NULL || *cmd == '\0') {
409: free(cmd);
410: cmd = cmd_stringify_argv(wp->argc, wp->argv);
411: if (cmd == NULL || *cmd == '\0') {
412: free(cmd);
413: cmd = xstrdup(wp->shell);
414: }
415: }
416: fe->value = parse_window_name(cmd);
417: free(cmd);
418: }
419:
1.80 nicm 420: /* Callback for history_bytes. */
1.108 nicm 421: static void
1.80 nicm 422: format_cb_history_bytes(struct format_tree *ft, struct format_entry *fe)
423: {
424: struct window_pane *wp = ft->wp;
425: struct grid *gd;
426: struct grid_line *gl;
427: unsigned long long size;
428: u_int i;
429:
430: if (wp == NULL)
431: return;
432: gd = wp->base.grid;
433:
434: size = 0;
435: for (i = 0; i < gd->hsize; i++) {
436: gl = &gd->linedata[i];
437: size += gl->cellsize * sizeof *gl->celldata;
1.95 nicm 438: size += gl->extdsize * sizeof *gl->extddata;
1.80 nicm 439: }
440: size += gd->hsize * sizeof *gd->linedata;
441:
442: xasprintf(&fe->value, "%llu", size);
443: }
444:
445: /* Callback for pane_tabs. */
1.108 nicm 446: static void
1.80 nicm 447: format_cb_pane_tabs(struct format_tree *ft, struct format_entry *fe)
448: {
449: struct window_pane *wp = ft->wp;
450: struct evbuffer *buffer;
451: u_int i;
452: int size;
453:
454: if (wp == NULL)
455: return;
456:
457: buffer = evbuffer_new();
458: for (i = 0; i < wp->base.grid->sx; i++) {
459: if (!bit_test(wp->base.tabs, i))
460: continue;
461:
462: if (EVBUFFER_LENGTH(buffer) > 0)
463: evbuffer_add(buffer, ",", 1);
464: evbuffer_add_printf(buffer, "%u", i);
465: }
466: size = EVBUFFER_LENGTH(buffer);
467: xasprintf(&fe->value, "%.*s", size, EVBUFFER_DATA(buffer));
468: evbuffer_free(buffer);
469: }
470:
1.112 ! nicm 471: /* Merge a format tree. */
! 472: static void
! 473: format_merge(struct format_tree *ft, struct format_tree *from)
! 474: {
! 475: struct format_entry *fe;
! 476:
! 477: RB_FOREACH(fe, format_entry_tree, &from->tree) {
! 478: if (fe->value != NULL)
! 479: format_add(ft, fe->key, "%s", fe->value);
! 480: }
! 481:
! 482: }
! 483:
1.1 nicm 484: /* Create a new tree. */
485: struct format_tree *
1.111 nicm 486: format_create(struct cmdq_item *item, int flags)
1.68 nicm 487: {
1.1 nicm 488: struct format_tree *ft;
1.77 nicm 489:
490: if (!event_initialized(&format_job_event)) {
491: evtimer_set(&format_job_event, format_job_timer, NULL);
492: format_job_timer(-1, 0, NULL);
493: }
1.1 nicm 494:
1.54 nicm 495: ft = xcalloc(1, sizeof *ft);
496: RB_INIT(&ft->tree);
1.84 nicm 497: ft->flags = flags;
1.1 nicm 498:
1.79 nicm 499: format_add_cb(ft, "host", format_cb_host);
500: format_add_cb(ft, "host_short", format_cb_host_short);
501: format_add_cb(ft, "pid", format_cb_pid);
1.100 nicm 502: format_add(ft, "socket_path", "%s", socket_path);
503: format_add_tv(ft, "start_time", &start_time);
1.102 nicm 504:
1.111 nicm 505: if (item != NULL && item->cmd != NULL)
506: format_add(ft, "command", "%s", item->cmd->entry->name);
1.112 ! nicm 507: if (item != NULL && item->formats != NULL)
! 508: format_merge(ft, item->formats);
1.1 nicm 509:
510: return (ft);
511: }
512:
513: /* Free a tree. */
514: void
515: format_free(struct format_tree *ft)
516: {
1.54 nicm 517: struct format_entry *fe, *fe1;
1.1 nicm 518:
1.68 nicm 519: RB_FOREACH_SAFE(fe, format_entry_tree, &ft->tree, fe1) {
520: RB_REMOVE(format_entry_tree, &ft->tree, fe);
1.9 nicm 521: free(fe->value);
522: free(fe->key);
523: free(fe);
1.1 nicm 524: }
525:
1.25 nicm 526: free(ft);
1.1 nicm 527: }
528:
529: /* Add a key-value pair. */
530: void
531: format_add(struct format_tree *ft, const char *key, const char *fmt, ...)
532: {
533: struct format_entry *fe;
1.28 nicm 534: struct format_entry *fe_now;
1.1 nicm 535: va_list ap;
536:
537: fe = xmalloc(sizeof *fe);
538: fe->key = xstrdup(key);
539:
1.79 nicm 540: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
541: if (fe_now != NULL) {
542: free(fe->key);
543: free(fe);
544: free(fe_now->value);
545: fe = fe_now;
546: }
547:
548: fe->cb = NULL;
1.87 nicm 549: fe->t = 0;
1.79 nicm 550:
1.1 nicm 551: va_start(ap, fmt);
552: xvasprintf(&fe->value, fmt, ap);
553: va_end(ap);
1.79 nicm 554: }
555:
1.87 nicm 556: /* Add a key and time. */
1.108 nicm 557: static void
1.87 nicm 558: format_add_tv(struct format_tree *ft, const char *key, struct timeval *tv)
559: {
560: struct format_entry *fe;
561: struct format_entry *fe_now;
562:
563: fe = xmalloc(sizeof *fe);
564: fe->key = xstrdup(key);
565:
566: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
567: if (fe_now != NULL) {
568: free(fe->key);
569: free(fe);
570: free(fe_now->value);
571: fe = fe_now;
572: }
573:
574: fe->cb = NULL;
575: fe->t = tv->tv_sec;
576:
577: fe->value = NULL;
578: }
579:
1.79 nicm 580: /* Add a key and function. */
1.108 nicm 581: static void
1.79 nicm 582: format_add_cb(struct format_tree *ft, const char *key, format_cb cb)
583: {
584: struct format_entry *fe;
585: struct format_entry *fe_now;
586:
587: fe = xmalloc(sizeof *fe);
588: fe->key = xstrdup(key);
1.1 nicm 589:
1.68 nicm 590: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
1.28 nicm 591: if (fe_now != NULL) {
592: free(fe->key);
593: free(fe);
1.79 nicm 594: free(fe_now->value);
595: fe = fe_now;
1.28 nicm 596: }
1.79 nicm 597:
598: fe->cb = cb;
1.87 nicm 599: fe->t = 0;
1.79 nicm 600:
601: fe->value = NULL;
1.1 nicm 602: }
603:
604: /* Find a format entry. */
1.108 nicm 605: static char *
1.87 nicm 606: format_find(struct format_tree *ft, const char *key, int modifiers)
1.1 nicm 607: {
608: struct format_entry *fe, fe_find;
1.54 nicm 609: struct options_entry *o;
1.76 nicm 610: struct environ_entry *envent;
1.87 nicm 611: static char s[64];
612: const char *found;
613: char *copy, *saved;
614:
615: found = NULL;
616:
617: if (~modifiers & FORMAT_TIMESTRING) {
1.90 nicm 618: o = options_find(global_options, key);
1.87 nicm 619: if (o == NULL && ft->w != NULL)
1.90 nicm 620: o = options_find(ft->w->options, key);
1.87 nicm 621: if (o == NULL)
1.90 nicm 622: o = options_find(global_w_options, key);
1.87 nicm 623: if (o == NULL && ft->s != NULL)
1.90 nicm 624: o = options_find(ft->s->options, key);
1.87 nicm 625: if (o == NULL)
1.90 nicm 626: o = options_find(global_s_options, key);
1.87 nicm 627: if (o != NULL) {
628: switch (o->type) {
629: case OPTIONS_STRING:
630: found = o->str;
631: goto found;
632: case OPTIONS_NUMBER:
633: xsnprintf(s, sizeof s, "%lld", o->num);
634: found = s;
635: goto found;
636: case OPTIONS_STYLE:
637: found = style_tostring(&o->style);
638: goto found;
639: }
1.54 nicm 640: }
641: }
1.1 nicm 642:
643: fe_find.key = (char *) key;
1.68 nicm 644: fe = RB_FIND(format_entry_tree, &ft->tree, &fe_find);
1.79 nicm 645: if (fe != NULL) {
1.87 nicm 646: if (modifiers & FORMAT_TIMESTRING) {
647: if (fe->t == 0)
648: return (NULL);
649: ctime_r(&fe->t, s);
650: s[strcspn(s, "\n")] = '\0';
651: found = s;
652: goto found;
653: }
654: if (fe->t != 0) {
655: xsnprintf(s, sizeof s, "%lld", (long long)fe->t);
656: found = s;
657: goto found;
658: }
1.79 nicm 659: if (fe->value == NULL && fe->cb != NULL)
660: fe->cb(ft, fe);
1.87 nicm 661: found = fe->value;
662: goto found;
1.79 nicm 663: }
1.76 nicm 664:
1.87 nicm 665: if (~modifiers & FORMAT_TIMESTRING) {
666: envent = NULL;
667: if (ft->s != NULL)
1.91 nicm 668: envent = environ_find(ft->s->environ, key);
1.87 nicm 669: if (envent == NULL)
1.91 nicm 670: envent = environ_find(global_environ, key);
1.87 nicm 671: if (envent != NULL) {
672: found = envent->value;
673: goto found;
674: }
675: }
1.76 nicm 676:
677: return (NULL);
1.87 nicm 678:
679: found:
1.88 nicm 680: if (found == NULL)
681: return (NULL);
1.87 nicm 682: copy = xstrdup(found);
683: if (modifiers & FORMAT_BASENAME) {
684: saved = copy;
685: copy = xstrdup(basename(saved));
686: free(saved);
687: }
688: if (modifiers & FORMAT_DIRNAME) {
689: saved = copy;
690: copy = xstrdup(dirname(saved));
691: free(saved);
692: }
693: return (copy);
1.1 nicm 694: }
695:
696: /*
697: * Replace a key/value pair in buffer. #{blah} is expanded directly,
698: * #{?blah,a,b} is replace with a if blah exists and is nonzero else b.
699: */
1.108 nicm 700: static int
1.30 nicm 701: format_replace(struct format_tree *ft, const char *key, size_t keylen,
702: char **buf, size_t *len, size_t *off)
1.1 nicm 703: {
1.98 nicm 704: char *copy, *copy0, *endptr, *ptr, *found, *new, *value;
705: char *from = NULL, *to = NULL;
706: size_t valuelen, newlen, fromlen, tolen, used;
1.105 nicm 707: long limit = 0;
1.89 nicm 708: int modifiers = 0, brackets;
1.1 nicm 709:
710: /* Make a copy of the key. */
1.30 nicm 711: copy0 = copy = xmalloc(keylen + 1);
1.1 nicm 712: memcpy(copy, key, keylen);
713: copy[keylen] = '\0';
714:
1.30 nicm 715: /* Is there a length limit or whatnot? */
1.87 nicm 716: switch (copy[0]) {
717: case '=':
718: errno = 0;
1.105 nicm 719: limit = strtol(copy + 1, &endptr, 10);
720: if (errno == ERANGE && (limit == LONG_MIN || limit == LONG_MAX))
1.87 nicm 721: break;
722: if (*endptr != ':')
723: break;
724: copy = endptr + 1;
725: break;
726: case 'b':
727: if (copy[1] != ':')
728: break;
729: modifiers |= FORMAT_BASENAME;
730: copy += 2;
731: break;
732: case 'd':
733: if (copy[1] != ':')
734: break;
735: modifiers |= FORMAT_DIRNAME;
736: copy += 2;
737: break;
738: case 't':
739: if (copy[1] != ':')
740: break;
741: modifiers |= FORMAT_TIMESTRING;
742: copy += 2;
743: break;
1.98 nicm 744: case 's':
745: if (copy[1] != '/')
746: break;
747: from = copy + 2;
748: for (copy = from; *copy != '\0' && *copy != '/'; copy++)
749: /* nothing */;
750: if (copy[0] != '/' || copy == from) {
751: copy = copy0;
752: break;
753: }
754: copy[0] = '\0';
755: to = copy + 1;
756: for (copy = to; *copy != '\0' && *copy != '/'; copy++)
757: /* nothing */;
758: if (copy[0] != '/' || copy[1] != ':') {
759: copy = copy0;
760: break;
761: }
762: copy[0] = '\0';
763:
764: modifiers |= FORMAT_SUBSTITUTE;
765: copy += 2;
766: break;
1.30 nicm 767: }
768:
1.1 nicm 769: /*
770: * Is this a conditional? If so, check it exists and extract either the
771: * first or second element. If not, look up the key directly.
772: */
773: if (*copy == '?') {
774: ptr = strchr(copy, ',');
775: if (ptr == NULL)
776: goto fail;
777: *ptr = '\0';
778:
1.89 nicm 779: value = ptr + 1;
1.98 nicm 780: found = format_find(ft, copy + 1, modifiers);
1.89 nicm 781:
782: brackets = 0;
783: for (ptr = ptr + 1; *ptr != '\0'; ptr++) {
784: if (*ptr == '{')
785: brackets++;
786: if (*ptr == '}')
787: brackets--;
788: if (*ptr == ',' && brackets == 0)
789: break;
790: }
791: if (*ptr == '\0')
792: goto fail;
793:
1.98 nicm 794: if (found != NULL && *found != '\0' &&
795: (found[0] != '0' || found[1] != '\0')) {
1.1 nicm 796: *ptr = '\0';
1.89 nicm 797: } else
1.1 nicm 798: value = ptr + 1;
1.87 nicm 799: value = format_expand(ft, value);
1.98 nicm 800: free(found);
1.1 nicm 801: } else {
1.98 nicm 802: value = format_find(ft, copy, modifiers);
1.1 nicm 803: if (value == NULL)
1.98 nicm 804: value = xstrdup("");
805: }
806:
807: /* Perform substitution if any. */
808: if (modifiers & FORMAT_SUBSTITUTE) {
809: fromlen = strlen(from);
810: tolen = strlen(to);
811:
812: newlen = strlen(value) + 1;
813: copy = new = xmalloc(newlen);
814: for (ptr = value; *ptr != '\0'; /* nothing */) {
815: if (strncmp(ptr, from, fromlen) != 0) {
816: *new++ = *ptr++;
817: continue;
818: }
819: used = new - copy;
820:
821: newlen += tolen;
822: copy = xrealloc(copy, newlen);
823:
824: new = copy + used;
825: memcpy(new, to, tolen);
826:
827: new += tolen;
828: ptr += fromlen;
829: }
830: *new = '\0';
831: free(value);
832: value = copy;
1.1 nicm 833: }
834:
1.30 nicm 835: /* Truncate the value if needed. */
1.105 nicm 836: if (limit > 0) {
1.98 nicm 837: new = utf8_trimcstr(value, limit);
1.105 nicm 838: free(value);
839: value = new;
840: } else if (limit < 0) {
841: new = utf8_rtrimcstr(value, -limit);
1.98 nicm 842: free(value);
843: value = new;
1.44 nicm 844: }
1.30 nicm 845:
1.1 nicm 846: /* Expand the buffer and copy in the value. */
1.98 nicm 847: valuelen = strlen(value);
1.1 nicm 848: while (*len - *off < valuelen + 1) {
1.50 nicm 849: *buf = xreallocarray(*buf, 2, *len);
1.1 nicm 850: *len *= 2;
851: }
852: memcpy(*buf + *off, value, valuelen);
853: *off += valuelen;
854:
1.98 nicm 855: free(value);
1.30 nicm 856: free(copy0);
1.1 nicm 857: return (0);
858:
859: fail:
1.30 nicm 860: free(copy0);
1.1 nicm 861: return (-1);
862: }
863:
1.58 nicm 864: /* Expand keys in a template, passing through strftime first. */
865: char *
866: format_expand_time(struct format_tree *ft, const char *fmt, time_t t)
867: {
868: struct tm *tm;
1.107 nicm 869: char s[2048];
1.58 nicm 870:
1.67 nicm 871: if (fmt == NULL || *fmt == '\0')
1.58 nicm 872: return (xstrdup(""));
873:
874: tm = localtime(&t);
875:
1.107 nicm 876: if (strftime(s, sizeof s, fmt, tm) == 0)
877: return (xstrdup(""));
1.58 nicm 878:
1.107 nicm 879: return (format_expand(ft, s));
1.58 nicm 880: }
881:
1.1 nicm 882: /* Expand keys in a template. */
883: char *
884: format_expand(struct format_tree *ft, const char *fmt)
885: {
1.86 nicm 886: char *buf, *tmp, *cmd, *out;
1.79 nicm 887: const char *ptr, *s, *saved = fmt;
1.86 nicm 888: size_t off, len, n, outlen;
1.31 nicm 889: int ch, brackets;
1.58 nicm 890:
891: if (fmt == NULL)
892: return (xstrdup(""));
1.1 nicm 893:
894: len = 64;
895: buf = xmalloc(len);
896: off = 0;
897:
898: while (*fmt != '\0') {
899: if (*fmt != '#') {
900: while (len - off < 2) {
1.50 nicm 901: buf = xreallocarray(buf, 2, len);
1.1 nicm 902: len *= 2;
903: }
904: buf[off++] = *fmt++;
905: continue;
906: }
907: fmt++;
908:
909: ch = (u_char) *fmt++;
910: switch (ch) {
1.68 nicm 911: case '(':
912: brackets = 1;
913: for (ptr = fmt; *ptr != '\0'; ptr++) {
914: if (*ptr == '(')
915: brackets++;
916: if (*ptr == ')' && --brackets == 0)
917: break;
918: }
919: if (*ptr != ')' || brackets != 0)
920: break;
921: n = ptr - fmt;
922:
923: tmp = xmalloc(n + 1);
924: memcpy(tmp, fmt, n);
925: tmp[n] = '\0';
1.69 nicm 926: cmd = format_expand(ft, tmp);
1.68 nicm 927:
1.86 nicm 928: out = format_job_get(ft, cmd);
929: outlen = strlen(out);
1.69 nicm 930:
931: free(cmd);
932: free(tmp);
1.68 nicm 933:
1.86 nicm 934: while (len - off < outlen + 1) {
1.68 nicm 935: buf = xreallocarray(buf, 2, len);
936: len *= 2;
937: }
1.86 nicm 938: memcpy(buf + off, out, outlen);
939: off += outlen;
940:
941: free(out);
1.68 nicm 942:
943: fmt += n + 1;
944: continue;
1.1 nicm 945: case '{':
1.31 nicm 946: brackets = 1;
947: for (ptr = fmt; *ptr != '\0'; ptr++) {
948: if (*ptr == '{')
949: brackets++;
950: if (*ptr == '}' && --brackets == 0)
951: break;
952: }
953: if (*ptr != '}' || brackets != 0)
1.1 nicm 954: break;
955: n = ptr - fmt;
956:
957: if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
958: break;
959: fmt += n + 1;
1.40 nicm 960: continue;
961: case '#':
962: while (len - off < 2) {
1.50 nicm 963: buf = xreallocarray(buf, 2, len);
1.40 nicm 964: len *= 2;
965: }
966: buf[off++] = '#';
1.1 nicm 967: continue;
968: default:
1.25 nicm 969: s = NULL;
970: if (ch >= 'A' && ch <= 'Z')
971: s = format_upper[ch - 'A'];
972: else if (ch >= 'a' && ch <= 'z')
973: s = format_lower[ch - 'a'];
974: if (s == NULL) {
975: while (len - off < 3) {
1.50 nicm 976: buf = xreallocarray(buf, 2, len);
1.25 nicm 977: len *= 2;
1.1 nicm 978: }
1.25 nicm 979: buf[off++] = '#';
980: buf[off++] = ch;
981: continue;
1.1 nicm 982: }
1.25 nicm 983: n = strlen(s);
984: if (format_replace(ft, s, n, &buf, &len, &off) != 0)
985: break;
1.1 nicm 986: continue;
987: }
988:
989: break;
990: }
991: buf[off] = '\0';
992:
1.79 nicm 993: log_debug("format '%s' -> '%s'", saved, buf);
1.1 nicm 994: return (buf);
995: }
996:
1.57 nicm 997: /* Set defaults for any of arguments that are not NULL. */
998: void
999: format_defaults(struct format_tree *ft, struct client *c, struct session *s,
1000: struct winlink *wl, struct window_pane *wp)
1001: {
1002: if (s == NULL && c != NULL)
1003: s = c->session;
1004: if (wl == NULL && s != NULL)
1005: wl = s->curw;
1006: if (wp == NULL && wl != NULL)
1007: wp = wl->window->active;
1008:
1009: if (c != NULL)
1010: format_defaults_client(ft, c);
1011: if (s != NULL)
1012: format_defaults_session(ft, s);
1013: if (s != NULL && wl != NULL)
1014: format_defaults_winlink(ft, s, wl);
1015: if (wp != NULL)
1016: format_defaults_pane(ft, wp);
1017: }
1018:
1.1 nicm 1019: /* Set default format keys for a session. */
1.108 nicm 1020: static void
1.57 nicm 1021: format_defaults_session(struct format_tree *ft, struct session *s)
1.1 nicm 1022: {
1023: struct session_group *sg;
1024:
1.54 nicm 1025: ft->s = s;
1026:
1.1 nicm 1027: format_add(ft, "session_name", "%s", s->name);
1028: format_add(ft, "session_windows", "%u", winlink_count(&s->windows));
1029: format_add(ft, "session_width", "%u", s->sx);
1030: format_add(ft, "session_height", "%u", s->sy);
1.23 nicm 1031: format_add(ft, "session_id", "$%u", s->id);
1.1 nicm 1032:
1033: sg = session_group_find(s);
1034: format_add(ft, "session_grouped", "%d", sg != NULL);
1035: if (sg != NULL)
1036: format_add(ft, "session_group", "%u", session_group_index(sg));
1037:
1.87 nicm 1038: format_add_tv(ft, "session_created", &s->creation_time);
1039: format_add_tv(ft, "session_last_attached", &s->last_attached_time);
1040: format_add_tv(ft, "session_activity", &s->activity_time);
1.1 nicm 1041:
1.41 nicm 1042: format_add(ft, "session_attached", "%u", s->attached);
1.59 nicm 1043: format_add(ft, "session_many_attached", "%d", s->attached > 1);
1.66 nicm 1044:
1.80 nicm 1045: format_add_cb(ft, "session_alerts", format_cb_session_alerts);
1.3 nicm 1046: }
1047:
1048: /* Set default format keys for a client. */
1.108 nicm 1049: static void
1.57 nicm 1050: format_defaults_client(struct format_tree *ft, struct client *c)
1.3 nicm 1051: {
1.60 nicm 1052: struct session *s;
1.103 nicm 1053: const char *name;
1.3 nicm 1054:
1.54 nicm 1055: if (ft->s == NULL)
1056: ft->s = c->session;
1057:
1.72 nicm 1058: format_add(ft, "client_pid", "%ld", (long) c->pid);
1.6 nicm 1059: format_add(ft, "client_height", "%u", c->tty.sy);
1060: format_add(ft, "client_width", "%u", c->tty.sx);
1.27 nicm 1061: if (c->tty.path != NULL)
1062: format_add(ft, "client_tty", "%s", c->tty.path);
1063: if (c->tty.termname != NULL)
1064: format_add(ft, "client_termname", "%s", c->tty.termname);
1.75 nicm 1065: format_add(ft, "client_control_mode", "%d",
1066: !!(c->flags & CLIENT_CONTROL));
1.3 nicm 1067:
1.87 nicm 1068: format_add_tv(ft, "client_created", &c->creation_time);
1069: format_add_tv(ft, "client_activity", &c->activity_time);
1.14 nicm 1070:
1.103 nicm 1071: name = server_client_get_key_table(c);
1072: if (strcmp(c->keytable->name, name) == 0)
1.61 nicm 1073: format_add(ft, "client_prefix", "%d", 0);
1074: else
1075: format_add(ft, "client_prefix", "%d", 1);
1076: format_add(ft, "client_key_table", "%s", c->keytable->name);
1.3 nicm 1077:
1078: if (c->tty.flags & TTY_UTF8)
1079: format_add(ft, "client_utf8", "%d", 1);
1080: else
1081: format_add(ft, "client_utf8", "%d", 0);
1082:
1083: if (c->flags & CLIENT_READONLY)
1084: format_add(ft, "client_readonly", "%d", 1);
1085: else
1086: format_add(ft, "client_readonly", "%d", 0);
1.15 nicm 1087:
1088: s = c->session;
1089: if (s != NULL)
1090: format_add(ft, "client_session", "%s", s->name);
1091: s = c->last_session;
1092: if (s != NULL && session_alive(s))
1093: format_add(ft, "client_last_session", "%s", s->name);
1.1 nicm 1094: }
1095:
1.32 nicm 1096: /* Set default format keys for a window. */
1097: void
1.57 nicm 1098: format_defaults_window(struct format_tree *ft, struct window *w)
1.32 nicm 1099: {
1.54 nicm 1100: ft->w = w;
1101:
1.87 nicm 1102: format_add_tv(ft, "window_activity", &w->activity_time);
1.32 nicm 1103: format_add(ft, "window_id", "@%u", w->id);
1104: format_add(ft, "window_name", "%s", w->name);
1105: format_add(ft, "window_width", "%u", w->sx);
1106: format_add(ft, "window_height", "%u", w->sy);
1.80 nicm 1107: format_add_cb(ft, "window_layout", format_cb_window_layout);
1.96 nicm 1108: format_add_cb(ft, "window_visible_layout",
1109: format_cb_window_visible_layout);
1.32 nicm 1110: format_add(ft, "window_panes", "%u", window_count_panes(w));
1.59 nicm 1111: format_add(ft, "window_zoomed_flag", "%d",
1.53 nicm 1112: !!(w->flags & WINDOW_ZOOMED));
1.32 nicm 1113: }
1114:
1.1 nicm 1115: /* Set default format keys for a winlink. */
1.108 nicm 1116: static void
1.57 nicm 1117: format_defaults_winlink(struct format_tree *ft, struct session *s,
1118: struct winlink *wl)
1.1 nicm 1119: {
1120: struct window *w = wl->window;
1.32 nicm 1121: char *flags;
1.1 nicm 1122:
1.54 nicm 1123: if (ft->w == NULL)
1124: ft->w = wl->window;
1125:
1.1 nicm 1126: flags = window_printable_flags(s, wl);
1127:
1.57 nicm 1128: format_defaults_window(ft, w);
1.32 nicm 1129:
1.1 nicm 1130: format_add(ft, "window_index", "%d", wl->idx);
1131: format_add(ft, "window_flags", "%s", flags);
1132: format_add(ft, "window_active", "%d", wl == s->curw);
1.29 nicm 1133:
1.59 nicm 1134: format_add(ft, "window_bell_flag", "%d",
1.29 nicm 1135: !!(wl->flags & WINLINK_BELL));
1.59 nicm 1136: format_add(ft, "window_activity_flag", "%d",
1.29 nicm 1137: !!(wl->flags & WINLINK_ACTIVITY));
1.59 nicm 1138: format_add(ft, "window_silence_flag", "%d",
1.29 nicm 1139: !!(wl->flags & WINLINK_SILENCE));
1.59 nicm 1140: format_add(ft, "window_last_flag", "%d",
1.49 nicm 1141: !!(wl == TAILQ_FIRST(&s->lastw)));
1.64 nicm 1142: format_add(ft, "window_linked", "%d", session_is_linked(s, wl->window));
1.32 nicm 1143:
1.9 nicm 1144: free(flags);
1.1 nicm 1145: }
1146:
1147: /* Set default format keys for a window pane. */
1148: void
1.57 nicm 1149: format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
1.1 nicm 1150: {
1.80 nicm 1151: struct grid *gd = wp->base.grid;
1152: u_int idx;
1.85 nicm 1153: int status, scroll_position;
1.54 nicm 1154:
1155: if (ft->w == NULL)
1156: ft->w = wp->window;
1.79 nicm 1157: ft->wp = wp;
1.1 nicm 1158:
1.16 nicm 1159: format_add(ft, "history_size", "%u", gd->hsize);
1160: format_add(ft, "history_limit", "%u", gd->hlimit);
1.80 nicm 1161: format_add_cb(ft, "history_bytes", format_cb_history_bytes);
1.1 nicm 1162:
1.4 nicm 1163: if (window_pane_index(wp, &idx) != 0)
1164: fatalx("index not found");
1.16 nicm 1165: format_add(ft, "pane_index", "%u", idx);
1.4 nicm 1166:
1.1 nicm 1167: format_add(ft, "pane_width", "%u", wp->sx);
1168: format_add(ft, "pane_height", "%u", wp->sy);
1169: format_add(ft, "pane_title", "%s", wp->base.title);
1170: format_add(ft, "pane_id", "%%%u", wp->id);
1171: format_add(ft, "pane_active", "%d", wp == wp->window->active);
1.55 nicm 1172: format_add(ft, "pane_input_off", "%d", !!(wp->flags & PANE_INPUTOFF));
1173:
1174: status = wp->status;
1175: if (wp->fd == -1 && WIFEXITED(status))
1176: format_add(ft, "pane_dead_status", "%d", WEXITSTATUS(status));
1.1 nicm 1177: format_add(ft, "pane_dead", "%d", wp->fd == -1);
1.47 nicm 1178:
1179: if (window_pane_visible(wp)) {
1180: format_add(ft, "pane_left", "%u", wp->xoff);
1181: format_add(ft, "pane_top", "%u", wp->yoff);
1182: format_add(ft, "pane_right", "%u", wp->xoff + wp->sx - 1);
1183: format_add(ft, "pane_bottom", "%u", wp->yoff + wp->sy - 1);
1184: }
1.16 nicm 1185:
1186: format_add(ft, "pane_in_mode", "%d", wp->screen != &wp->base);
1.26 nicm 1187: format_add(ft, "pane_synchronized", "%d",
1.90 nicm 1188: !!options_get_number(wp->window->options, "synchronize-panes"));
1.16 nicm 1189:
1.71 nicm 1190: format_add(ft, "pane_tty", "%s", wp->tty);
1.16 nicm 1191: format_add(ft, "pane_pid", "%ld", (long) wp->pid);
1.79 nicm 1192: format_add_cb(ft, "pane_start_command", format_cb_start_command);
1193: format_add_cb(ft, "pane_current_command", format_cb_current_command);
1.16 nicm 1194:
1.59 nicm 1195: format_add(ft, "cursor_x", "%u", wp->base.cx);
1196: format_add(ft, "cursor_y", "%u", wp->base.cy);
1197: format_add(ft, "scroll_region_upper", "%u", wp->base.rupper);
1198: format_add(ft, "scroll_region_lower", "%u", wp->base.rlower);
1.85 nicm 1199:
1200: scroll_position = window_copy_scroll_position(wp);
1201: if (scroll_position != -1)
1202: format_add(ft, "scroll_position", "%d", scroll_position);
1.16 nicm 1203:
1204: format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
1.59 nicm 1205: format_add(ft, "alternate_saved_x", "%u", wp->saved_cx);
1206: format_add(ft, "alternate_saved_y", "%u", wp->saved_cy);
1.16 nicm 1207:
1208: format_add(ft, "cursor_flag", "%d",
1209: !!(wp->base.mode & MODE_CURSOR));
1210: format_add(ft, "insert_flag", "%d",
1211: !!(wp->base.mode & MODE_INSERT));
1212: format_add(ft, "keypad_cursor_flag", "%d",
1213: !!(wp->base.mode & MODE_KCURSOR));
1214: format_add(ft, "keypad_flag", "%d",
1215: !!(wp->base.mode & MODE_KKEYPAD));
1216: format_add(ft, "wrap_flag", "%d",
1217: !!(wp->base.mode & MODE_WRAP));
1218:
1.62 nicm 1219: format_add(ft, "mouse_any_flag", "%d",
1220: !!(wp->base.mode & (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON)));
1.16 nicm 1221: format_add(ft, "mouse_standard_flag", "%d",
1222: !!(wp->base.mode & MODE_MOUSE_STANDARD));
1223: format_add(ft, "mouse_button_flag", "%d",
1224: !!(wp->base.mode & MODE_MOUSE_BUTTON));
1.19 nicm 1225:
1.80 nicm 1226: format_add_cb(ft, "pane_tabs", format_cb_pane_tabs);
1.8 nicm 1227: }
1228:
1.19 nicm 1229: /* Set default format keys for paste buffer. */
1.8 nicm 1230: void
1.94 nicm 1231: format_defaults_paste_buffer(struct format_tree *ft, struct paste_buffer *pb)
1.8 nicm 1232: {
1.81 nicm 1233: size_t bufsize;
1.42 nicm 1234: char *s;
1.8 nicm 1235:
1.81 nicm 1236: paste_buffer_data(pb, &bufsize);
1237: format_add(ft, "buffer_size", "%zu", bufsize);
1238: format_add(ft, "buffer_name", "%s", paste_buffer_name(pb));
1.8 nicm 1239:
1.94 nicm 1240: s = paste_make_sample(pb);
1.42 nicm 1241: format_add(ft, "buffer_sample", "%s", s);
1242: free(s);
1.1 nicm 1243: }
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