Annotation of src/usr.bin/tmux/format.c, Revision 1.109
1.109 ! nicm 1: /* $OpenBSD: format.c,v 1.108 2016/10/10 21:29:23 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:
1.1 nicm 471: /* Create a new tree. */
472: struct format_tree *
1.102 nicm 473: format_create(struct cmd_q *cmdq, int flags)
1.68 nicm 474: {
1.1 nicm 475: struct format_tree *ft;
1.106 nicm 476: struct cmd *cmd;
1.77 nicm 477:
478: if (!event_initialized(&format_job_event)) {
479: evtimer_set(&format_job_event, format_job_timer, NULL);
480: format_job_timer(-1, 0, NULL);
481: }
1.1 nicm 482:
1.54 nicm 483: ft = xcalloc(1, sizeof *ft);
484: RB_INIT(&ft->tree);
1.84 nicm 485: ft->flags = flags;
1.1 nicm 486:
1.79 nicm 487: format_add_cb(ft, "host", format_cb_host);
488: format_add_cb(ft, "host_short", format_cb_host_short);
489: format_add_cb(ft, "pid", format_cb_pid);
1.100 nicm 490: format_add(ft, "socket_path", "%s", socket_path);
491: format_add_tv(ft, "start_time", &start_time);
1.102 nicm 492:
493: if (cmdq != NULL && cmdq->cmd != NULL)
494: format_add(ft, "command_name", "%s", cmdq->cmd->entry->name);
1.106 nicm 495: if (cmdq != NULL && cmdq->parent != NULL) {
496: cmd = cmdq->parent->cmd;
497: format_add(ft, "command_hooked", "%s", cmd->entry->name);
498: }
1.1 nicm 499:
500: return (ft);
501: }
502:
503: /* Free a tree. */
504: void
505: format_free(struct format_tree *ft)
506: {
1.54 nicm 507: struct format_entry *fe, *fe1;
1.1 nicm 508:
1.68 nicm 509: RB_FOREACH_SAFE(fe, format_entry_tree, &ft->tree, fe1) {
510: RB_REMOVE(format_entry_tree, &ft->tree, fe);
1.9 nicm 511: free(fe->value);
512: free(fe->key);
513: free(fe);
1.1 nicm 514: }
515:
1.25 nicm 516: free(ft);
1.1 nicm 517: }
518:
519: /* Add a key-value pair. */
520: void
521: format_add(struct format_tree *ft, const char *key, const char *fmt, ...)
522: {
523: struct format_entry *fe;
1.28 nicm 524: struct format_entry *fe_now;
1.1 nicm 525: va_list ap;
526:
527: fe = xmalloc(sizeof *fe);
528: fe->key = xstrdup(key);
529:
1.79 nicm 530: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
531: if (fe_now != NULL) {
532: free(fe->key);
533: free(fe);
534: free(fe_now->value);
535: fe = fe_now;
536: }
537:
538: fe->cb = NULL;
1.87 nicm 539: fe->t = 0;
1.79 nicm 540:
1.1 nicm 541: va_start(ap, fmt);
542: xvasprintf(&fe->value, fmt, ap);
543: va_end(ap);
1.79 nicm 544: }
545:
1.87 nicm 546: /* Add a key and time. */
1.108 nicm 547: static void
1.87 nicm 548: format_add_tv(struct format_tree *ft, const char *key, struct timeval *tv)
549: {
550: struct format_entry *fe;
551: struct format_entry *fe_now;
552:
553: fe = xmalloc(sizeof *fe);
554: fe->key = xstrdup(key);
555:
556: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
557: if (fe_now != NULL) {
558: free(fe->key);
559: free(fe);
560: free(fe_now->value);
561: fe = fe_now;
562: }
563:
564: fe->cb = NULL;
565: fe->t = tv->tv_sec;
566:
567: fe->value = NULL;
568: }
569:
1.79 nicm 570: /* Add a key and function. */
1.108 nicm 571: static void
1.79 nicm 572: format_add_cb(struct format_tree *ft, const char *key, format_cb cb)
573: {
574: struct format_entry *fe;
575: struct format_entry *fe_now;
576:
577: fe = xmalloc(sizeof *fe);
578: fe->key = xstrdup(key);
1.1 nicm 579:
1.68 nicm 580: fe_now = RB_INSERT(format_entry_tree, &ft->tree, fe);
1.28 nicm 581: if (fe_now != NULL) {
582: free(fe->key);
583: free(fe);
1.79 nicm 584: free(fe_now->value);
585: fe = fe_now;
1.28 nicm 586: }
1.79 nicm 587:
588: fe->cb = cb;
1.87 nicm 589: fe->t = 0;
1.79 nicm 590:
591: fe->value = NULL;
1.1 nicm 592: }
593:
594: /* Find a format entry. */
1.108 nicm 595: static char *
1.87 nicm 596: format_find(struct format_tree *ft, const char *key, int modifiers)
1.1 nicm 597: {
598: struct format_entry *fe, fe_find;
1.54 nicm 599: struct options_entry *o;
1.76 nicm 600: struct environ_entry *envent;
1.87 nicm 601: static char s[64];
602: const char *found;
603: char *copy, *saved;
604:
605: found = NULL;
606:
607: if (~modifiers & FORMAT_TIMESTRING) {
1.90 nicm 608: o = options_find(global_options, key);
1.87 nicm 609: if (o == NULL && ft->w != NULL)
1.90 nicm 610: o = options_find(ft->w->options, key);
1.87 nicm 611: if (o == NULL)
1.90 nicm 612: o = options_find(global_w_options, key);
1.87 nicm 613: if (o == NULL && ft->s != NULL)
1.90 nicm 614: o = options_find(ft->s->options, key);
1.87 nicm 615: if (o == NULL)
1.90 nicm 616: o = options_find(global_s_options, key);
1.87 nicm 617: if (o != NULL) {
618: switch (o->type) {
619: case OPTIONS_STRING:
620: found = o->str;
621: goto found;
622: case OPTIONS_NUMBER:
623: xsnprintf(s, sizeof s, "%lld", o->num);
624: found = s;
625: goto found;
626: case OPTIONS_STYLE:
627: found = style_tostring(&o->style);
628: goto found;
629: }
1.54 nicm 630: }
631: }
1.1 nicm 632:
633: fe_find.key = (char *) key;
1.68 nicm 634: fe = RB_FIND(format_entry_tree, &ft->tree, &fe_find);
1.79 nicm 635: if (fe != NULL) {
1.87 nicm 636: if (modifiers & FORMAT_TIMESTRING) {
637: if (fe->t == 0)
638: return (NULL);
639: ctime_r(&fe->t, s);
640: s[strcspn(s, "\n")] = '\0';
641: found = s;
642: goto found;
643: }
644: if (fe->t != 0) {
645: xsnprintf(s, sizeof s, "%lld", (long long)fe->t);
646: found = s;
647: goto found;
648: }
1.79 nicm 649: if (fe->value == NULL && fe->cb != NULL)
650: fe->cb(ft, fe);
1.87 nicm 651: found = fe->value;
652: goto found;
1.79 nicm 653: }
1.76 nicm 654:
1.87 nicm 655: if (~modifiers & FORMAT_TIMESTRING) {
656: envent = NULL;
657: if (ft->s != NULL)
1.91 nicm 658: envent = environ_find(ft->s->environ, key);
1.87 nicm 659: if (envent == NULL)
1.91 nicm 660: envent = environ_find(global_environ, key);
1.87 nicm 661: if (envent != NULL) {
662: found = envent->value;
663: goto found;
664: }
665: }
1.76 nicm 666:
667: return (NULL);
1.87 nicm 668:
669: found:
1.88 nicm 670: if (found == NULL)
671: return (NULL);
1.87 nicm 672: copy = xstrdup(found);
673: if (modifiers & FORMAT_BASENAME) {
674: saved = copy;
675: copy = xstrdup(basename(saved));
676: free(saved);
677: }
678: if (modifiers & FORMAT_DIRNAME) {
679: saved = copy;
680: copy = xstrdup(dirname(saved));
681: free(saved);
682: }
683: return (copy);
1.1 nicm 684: }
685:
686: /*
687: * Replace a key/value pair in buffer. #{blah} is expanded directly,
688: * #{?blah,a,b} is replace with a if blah exists and is nonzero else b.
689: */
1.108 nicm 690: static int
1.30 nicm 691: format_replace(struct format_tree *ft, const char *key, size_t keylen,
692: char **buf, size_t *len, size_t *off)
1.1 nicm 693: {
1.98 nicm 694: char *copy, *copy0, *endptr, *ptr, *found, *new, *value;
695: char *from = NULL, *to = NULL;
696: size_t valuelen, newlen, fromlen, tolen, used;
1.105 nicm 697: long limit = 0;
1.89 nicm 698: int modifiers = 0, brackets;
1.1 nicm 699:
700: /* Make a copy of the key. */
1.30 nicm 701: copy0 = copy = xmalloc(keylen + 1);
1.1 nicm 702: memcpy(copy, key, keylen);
703: copy[keylen] = '\0';
704:
1.30 nicm 705: /* Is there a length limit or whatnot? */
1.87 nicm 706: switch (copy[0]) {
707: case '=':
708: errno = 0;
1.105 nicm 709: limit = strtol(copy + 1, &endptr, 10);
710: if (errno == ERANGE && (limit == LONG_MIN || limit == LONG_MAX))
1.87 nicm 711: break;
712: if (*endptr != ':')
713: break;
714: copy = endptr + 1;
715: break;
716: case 'b':
717: if (copy[1] != ':')
718: break;
719: modifiers |= FORMAT_BASENAME;
720: copy += 2;
721: break;
722: case 'd':
723: if (copy[1] != ':')
724: break;
725: modifiers |= FORMAT_DIRNAME;
726: copy += 2;
727: break;
728: case 't':
729: if (copy[1] != ':')
730: break;
731: modifiers |= FORMAT_TIMESTRING;
732: copy += 2;
733: break;
1.98 nicm 734: case 's':
735: if (copy[1] != '/')
736: break;
737: from = copy + 2;
738: for (copy = from; *copy != '\0' && *copy != '/'; copy++)
739: /* nothing */;
740: if (copy[0] != '/' || copy == from) {
741: copy = copy0;
742: break;
743: }
744: copy[0] = '\0';
745: to = copy + 1;
746: for (copy = to; *copy != '\0' && *copy != '/'; copy++)
747: /* nothing */;
748: if (copy[0] != '/' || copy[1] != ':') {
749: copy = copy0;
750: break;
751: }
752: copy[0] = '\0';
753:
754: modifiers |= FORMAT_SUBSTITUTE;
755: copy += 2;
756: break;
1.30 nicm 757: }
758:
1.1 nicm 759: /*
760: * Is this a conditional? If so, check it exists and extract either the
761: * first or second element. If not, look up the key directly.
762: */
763: if (*copy == '?') {
764: ptr = strchr(copy, ',');
765: if (ptr == NULL)
766: goto fail;
767: *ptr = '\0';
768:
1.89 nicm 769: value = ptr + 1;
1.98 nicm 770: found = format_find(ft, copy + 1, modifiers);
1.89 nicm 771:
772: brackets = 0;
773: for (ptr = ptr + 1; *ptr != '\0'; ptr++) {
774: if (*ptr == '{')
775: brackets++;
776: if (*ptr == '}')
777: brackets--;
778: if (*ptr == ',' && brackets == 0)
779: break;
780: }
781: if (*ptr == '\0')
782: goto fail;
783:
1.98 nicm 784: if (found != NULL && *found != '\0' &&
785: (found[0] != '0' || found[1] != '\0')) {
1.1 nicm 786: *ptr = '\0';
1.89 nicm 787: } else
1.1 nicm 788: value = ptr + 1;
1.87 nicm 789: value = format_expand(ft, value);
1.98 nicm 790: free(found);
1.1 nicm 791: } else {
1.98 nicm 792: value = format_find(ft, copy, modifiers);
1.1 nicm 793: if (value == NULL)
1.98 nicm 794: value = xstrdup("");
795: }
796:
797: /* Perform substitution if any. */
798: if (modifiers & FORMAT_SUBSTITUTE) {
799: fromlen = strlen(from);
800: tolen = strlen(to);
801:
802: newlen = strlen(value) + 1;
803: copy = new = xmalloc(newlen);
804: for (ptr = value; *ptr != '\0'; /* nothing */) {
805: if (strncmp(ptr, from, fromlen) != 0) {
806: *new++ = *ptr++;
807: continue;
808: }
809: used = new - copy;
810:
811: newlen += tolen;
812: copy = xrealloc(copy, newlen);
813:
814: new = copy + used;
815: memcpy(new, to, tolen);
816:
817: new += tolen;
818: ptr += fromlen;
819: }
820: *new = '\0';
821: free(value);
822: value = copy;
1.1 nicm 823: }
824:
1.30 nicm 825: /* Truncate the value if needed. */
1.105 nicm 826: if (limit > 0) {
1.98 nicm 827: new = utf8_trimcstr(value, limit);
1.105 nicm 828: free(value);
829: value = new;
830: } else if (limit < 0) {
831: new = utf8_rtrimcstr(value, -limit);
1.98 nicm 832: free(value);
833: value = new;
1.44 nicm 834: }
1.30 nicm 835:
1.1 nicm 836: /* Expand the buffer and copy in the value. */
1.98 nicm 837: valuelen = strlen(value);
1.1 nicm 838: while (*len - *off < valuelen + 1) {
1.50 nicm 839: *buf = xreallocarray(*buf, 2, *len);
1.1 nicm 840: *len *= 2;
841: }
842: memcpy(*buf + *off, value, valuelen);
843: *off += valuelen;
844:
1.98 nicm 845: free(value);
1.30 nicm 846: free(copy0);
1.1 nicm 847: return (0);
848:
849: fail:
1.30 nicm 850: free(copy0);
1.1 nicm 851: return (-1);
852: }
853:
1.58 nicm 854: /* Expand keys in a template, passing through strftime first. */
855: char *
856: format_expand_time(struct format_tree *ft, const char *fmt, time_t t)
857: {
858: struct tm *tm;
1.107 nicm 859: char s[2048];
1.58 nicm 860:
1.67 nicm 861: if (fmt == NULL || *fmt == '\0')
1.58 nicm 862: return (xstrdup(""));
863:
864: tm = localtime(&t);
865:
1.107 nicm 866: if (strftime(s, sizeof s, fmt, tm) == 0)
867: return (xstrdup(""));
1.58 nicm 868:
1.107 nicm 869: return (format_expand(ft, s));
1.58 nicm 870: }
871:
1.1 nicm 872: /* Expand keys in a template. */
873: char *
874: format_expand(struct format_tree *ft, const char *fmt)
875: {
1.86 nicm 876: char *buf, *tmp, *cmd, *out;
1.79 nicm 877: const char *ptr, *s, *saved = fmt;
1.86 nicm 878: size_t off, len, n, outlen;
1.31 nicm 879: int ch, brackets;
1.58 nicm 880:
881: if (fmt == NULL)
882: return (xstrdup(""));
1.1 nicm 883:
884: len = 64;
885: buf = xmalloc(len);
886: off = 0;
887:
888: while (*fmt != '\0') {
889: if (*fmt != '#') {
890: while (len - off < 2) {
1.50 nicm 891: buf = xreallocarray(buf, 2, len);
1.1 nicm 892: len *= 2;
893: }
894: buf[off++] = *fmt++;
895: continue;
896: }
897: fmt++;
898:
899: ch = (u_char) *fmt++;
900: switch (ch) {
1.68 nicm 901: case '(':
902: brackets = 1;
903: for (ptr = fmt; *ptr != '\0'; ptr++) {
904: if (*ptr == '(')
905: brackets++;
906: if (*ptr == ')' && --brackets == 0)
907: break;
908: }
909: if (*ptr != ')' || brackets != 0)
910: break;
911: n = ptr - fmt;
912:
913: tmp = xmalloc(n + 1);
914: memcpy(tmp, fmt, n);
915: tmp[n] = '\0';
1.69 nicm 916: cmd = format_expand(ft, tmp);
1.68 nicm 917:
1.86 nicm 918: out = format_job_get(ft, cmd);
919: outlen = strlen(out);
1.69 nicm 920:
921: free(cmd);
922: free(tmp);
1.68 nicm 923:
1.86 nicm 924: while (len - off < outlen + 1) {
1.68 nicm 925: buf = xreallocarray(buf, 2, len);
926: len *= 2;
927: }
1.86 nicm 928: memcpy(buf + off, out, outlen);
929: off += outlen;
930:
931: free(out);
1.68 nicm 932:
933: fmt += n + 1;
934: continue;
1.1 nicm 935: case '{':
1.31 nicm 936: brackets = 1;
937: for (ptr = fmt; *ptr != '\0'; ptr++) {
938: if (*ptr == '{')
939: brackets++;
940: if (*ptr == '}' && --brackets == 0)
941: break;
942: }
943: if (*ptr != '}' || brackets != 0)
1.1 nicm 944: break;
945: n = ptr - fmt;
946:
947: if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
948: break;
949: fmt += n + 1;
1.40 nicm 950: continue;
951: case '#':
952: while (len - off < 2) {
1.50 nicm 953: buf = xreallocarray(buf, 2, len);
1.40 nicm 954: len *= 2;
955: }
956: buf[off++] = '#';
1.1 nicm 957: continue;
958: default:
1.25 nicm 959: s = NULL;
960: if (ch >= 'A' && ch <= 'Z')
961: s = format_upper[ch - 'A'];
962: else if (ch >= 'a' && ch <= 'z')
963: s = format_lower[ch - 'a'];
964: if (s == NULL) {
965: while (len - off < 3) {
1.50 nicm 966: buf = xreallocarray(buf, 2, len);
1.25 nicm 967: len *= 2;
1.1 nicm 968: }
1.25 nicm 969: buf[off++] = '#';
970: buf[off++] = ch;
971: continue;
1.1 nicm 972: }
1.25 nicm 973: n = strlen(s);
974: if (format_replace(ft, s, n, &buf, &len, &off) != 0)
975: break;
1.1 nicm 976: continue;
977: }
978:
979: break;
980: }
981: buf[off] = '\0';
982:
1.79 nicm 983: log_debug("format '%s' -> '%s'", saved, buf);
1.1 nicm 984: return (buf);
985: }
986:
1.57 nicm 987: /* Set defaults for any of arguments that are not NULL. */
988: void
989: format_defaults(struct format_tree *ft, struct client *c, struct session *s,
990: struct winlink *wl, struct window_pane *wp)
991: {
992: if (s == NULL && c != NULL)
993: s = c->session;
994: if (wl == NULL && s != NULL)
995: wl = s->curw;
996: if (wp == NULL && wl != NULL)
997: wp = wl->window->active;
998:
999: if (c != NULL)
1000: format_defaults_client(ft, c);
1001: if (s != NULL)
1002: format_defaults_session(ft, s);
1003: if (s != NULL && wl != NULL)
1004: format_defaults_winlink(ft, s, wl);
1005: if (wp != NULL)
1006: format_defaults_pane(ft, wp);
1007: }
1008:
1.1 nicm 1009: /* Set default format keys for a session. */
1.108 nicm 1010: static void
1.57 nicm 1011: format_defaults_session(struct format_tree *ft, struct session *s)
1.1 nicm 1012: {
1013: struct session_group *sg;
1014:
1.54 nicm 1015: ft->s = s;
1016:
1.1 nicm 1017: format_add(ft, "session_name", "%s", s->name);
1018: format_add(ft, "session_windows", "%u", winlink_count(&s->windows));
1019: format_add(ft, "session_width", "%u", s->sx);
1020: format_add(ft, "session_height", "%u", s->sy);
1.23 nicm 1021: format_add(ft, "session_id", "$%u", s->id);
1.1 nicm 1022:
1023: sg = session_group_find(s);
1024: format_add(ft, "session_grouped", "%d", sg != NULL);
1025: if (sg != NULL)
1026: format_add(ft, "session_group", "%u", session_group_index(sg));
1027:
1.87 nicm 1028: format_add_tv(ft, "session_created", &s->creation_time);
1029: format_add_tv(ft, "session_last_attached", &s->last_attached_time);
1030: format_add_tv(ft, "session_activity", &s->activity_time);
1.1 nicm 1031:
1.41 nicm 1032: format_add(ft, "session_attached", "%u", s->attached);
1.59 nicm 1033: format_add(ft, "session_many_attached", "%d", s->attached > 1);
1.66 nicm 1034:
1.80 nicm 1035: format_add_cb(ft, "session_alerts", format_cb_session_alerts);
1.3 nicm 1036: }
1037:
1038: /* Set default format keys for a client. */
1.108 nicm 1039: static void
1.57 nicm 1040: format_defaults_client(struct format_tree *ft, struct client *c)
1.3 nicm 1041: {
1.60 nicm 1042: struct session *s;
1.103 nicm 1043: const char *name;
1.3 nicm 1044:
1.54 nicm 1045: if (ft->s == NULL)
1046: ft->s = c->session;
1047:
1.72 nicm 1048: format_add(ft, "client_pid", "%ld", (long) c->pid);
1.6 nicm 1049: format_add(ft, "client_height", "%u", c->tty.sy);
1050: format_add(ft, "client_width", "%u", c->tty.sx);
1.27 nicm 1051: if (c->tty.path != NULL)
1052: format_add(ft, "client_tty", "%s", c->tty.path);
1053: if (c->tty.termname != NULL)
1054: format_add(ft, "client_termname", "%s", c->tty.termname);
1.75 nicm 1055: format_add(ft, "client_control_mode", "%d",
1056: !!(c->flags & CLIENT_CONTROL));
1.3 nicm 1057:
1.87 nicm 1058: format_add_tv(ft, "client_created", &c->creation_time);
1059: format_add_tv(ft, "client_activity", &c->activity_time);
1.14 nicm 1060:
1.103 nicm 1061: name = server_client_get_key_table(c);
1062: if (strcmp(c->keytable->name, name) == 0)
1.61 nicm 1063: format_add(ft, "client_prefix", "%d", 0);
1064: else
1065: format_add(ft, "client_prefix", "%d", 1);
1066: format_add(ft, "client_key_table", "%s", c->keytable->name);
1.3 nicm 1067:
1068: if (c->tty.flags & TTY_UTF8)
1069: format_add(ft, "client_utf8", "%d", 1);
1070: else
1071: format_add(ft, "client_utf8", "%d", 0);
1072:
1073: if (c->flags & CLIENT_READONLY)
1074: format_add(ft, "client_readonly", "%d", 1);
1075: else
1076: format_add(ft, "client_readonly", "%d", 0);
1.15 nicm 1077:
1078: s = c->session;
1079: if (s != NULL)
1080: format_add(ft, "client_session", "%s", s->name);
1081: s = c->last_session;
1082: if (s != NULL && session_alive(s))
1083: format_add(ft, "client_last_session", "%s", s->name);
1.1 nicm 1084: }
1085:
1.32 nicm 1086: /* Set default format keys for a window. */
1087: void
1.57 nicm 1088: format_defaults_window(struct format_tree *ft, struct window *w)
1.32 nicm 1089: {
1.54 nicm 1090: ft->w = w;
1091:
1.87 nicm 1092: format_add_tv(ft, "window_activity", &w->activity_time);
1.32 nicm 1093: format_add(ft, "window_id", "@%u", w->id);
1094: format_add(ft, "window_name", "%s", w->name);
1095: format_add(ft, "window_width", "%u", w->sx);
1096: format_add(ft, "window_height", "%u", w->sy);
1.80 nicm 1097: format_add_cb(ft, "window_layout", format_cb_window_layout);
1.96 nicm 1098: format_add_cb(ft, "window_visible_layout",
1099: format_cb_window_visible_layout);
1.32 nicm 1100: format_add(ft, "window_panes", "%u", window_count_panes(w));
1.59 nicm 1101: format_add(ft, "window_zoomed_flag", "%d",
1.53 nicm 1102: !!(w->flags & WINDOW_ZOOMED));
1.32 nicm 1103: }
1104:
1.1 nicm 1105: /* Set default format keys for a winlink. */
1.108 nicm 1106: static void
1.57 nicm 1107: format_defaults_winlink(struct format_tree *ft, struct session *s,
1108: struct winlink *wl)
1.1 nicm 1109: {
1110: struct window *w = wl->window;
1.32 nicm 1111: char *flags;
1.1 nicm 1112:
1.54 nicm 1113: if (ft->w == NULL)
1114: ft->w = wl->window;
1115:
1.1 nicm 1116: flags = window_printable_flags(s, wl);
1117:
1.57 nicm 1118: format_defaults_window(ft, w);
1.32 nicm 1119:
1.1 nicm 1120: format_add(ft, "window_index", "%d", wl->idx);
1121: format_add(ft, "window_flags", "%s", flags);
1122: format_add(ft, "window_active", "%d", wl == s->curw);
1.29 nicm 1123:
1.59 nicm 1124: format_add(ft, "window_bell_flag", "%d",
1.29 nicm 1125: !!(wl->flags & WINLINK_BELL));
1.59 nicm 1126: format_add(ft, "window_activity_flag", "%d",
1.29 nicm 1127: !!(wl->flags & WINLINK_ACTIVITY));
1.59 nicm 1128: format_add(ft, "window_silence_flag", "%d",
1.29 nicm 1129: !!(wl->flags & WINLINK_SILENCE));
1.59 nicm 1130: format_add(ft, "window_last_flag", "%d",
1.49 nicm 1131: !!(wl == TAILQ_FIRST(&s->lastw)));
1.64 nicm 1132: format_add(ft, "window_linked", "%d", session_is_linked(s, wl->window));
1.32 nicm 1133:
1.9 nicm 1134: free(flags);
1.1 nicm 1135: }
1136:
1137: /* Set default format keys for a window pane. */
1138: void
1.57 nicm 1139: format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
1.1 nicm 1140: {
1.80 nicm 1141: struct grid *gd = wp->base.grid;
1142: u_int idx;
1.85 nicm 1143: int status, scroll_position;
1.54 nicm 1144:
1145: if (ft->w == NULL)
1146: ft->w = wp->window;
1.79 nicm 1147: ft->wp = wp;
1.1 nicm 1148:
1.16 nicm 1149: format_add(ft, "history_size", "%u", gd->hsize);
1150: format_add(ft, "history_limit", "%u", gd->hlimit);
1.80 nicm 1151: format_add_cb(ft, "history_bytes", format_cb_history_bytes);
1.1 nicm 1152:
1.4 nicm 1153: if (window_pane_index(wp, &idx) != 0)
1154: fatalx("index not found");
1.16 nicm 1155: format_add(ft, "pane_index", "%u", idx);
1.4 nicm 1156:
1.1 nicm 1157: format_add(ft, "pane_width", "%u", wp->sx);
1158: format_add(ft, "pane_height", "%u", wp->sy);
1159: format_add(ft, "pane_title", "%s", wp->base.title);
1160: format_add(ft, "pane_id", "%%%u", wp->id);
1161: format_add(ft, "pane_active", "%d", wp == wp->window->active);
1.55 nicm 1162: format_add(ft, "pane_input_off", "%d", !!(wp->flags & PANE_INPUTOFF));
1163:
1164: status = wp->status;
1165: if (wp->fd == -1 && WIFEXITED(status))
1166: format_add(ft, "pane_dead_status", "%d", WEXITSTATUS(status));
1.1 nicm 1167: format_add(ft, "pane_dead", "%d", wp->fd == -1);
1.47 nicm 1168:
1169: if (window_pane_visible(wp)) {
1170: format_add(ft, "pane_left", "%u", wp->xoff);
1171: format_add(ft, "pane_top", "%u", wp->yoff);
1172: format_add(ft, "pane_right", "%u", wp->xoff + wp->sx - 1);
1173: format_add(ft, "pane_bottom", "%u", wp->yoff + wp->sy - 1);
1174: }
1.16 nicm 1175:
1176: format_add(ft, "pane_in_mode", "%d", wp->screen != &wp->base);
1.26 nicm 1177: format_add(ft, "pane_synchronized", "%d",
1.90 nicm 1178: !!options_get_number(wp->window->options, "synchronize-panes"));
1.16 nicm 1179:
1.71 nicm 1180: format_add(ft, "pane_tty", "%s", wp->tty);
1.16 nicm 1181: format_add(ft, "pane_pid", "%ld", (long) wp->pid);
1.79 nicm 1182: format_add_cb(ft, "pane_start_command", format_cb_start_command);
1183: format_add_cb(ft, "pane_current_command", format_cb_current_command);
1.16 nicm 1184:
1.59 nicm 1185: format_add(ft, "cursor_x", "%u", wp->base.cx);
1186: format_add(ft, "cursor_y", "%u", wp->base.cy);
1187: format_add(ft, "scroll_region_upper", "%u", wp->base.rupper);
1188: format_add(ft, "scroll_region_lower", "%u", wp->base.rlower);
1.85 nicm 1189:
1190: scroll_position = window_copy_scroll_position(wp);
1191: if (scroll_position != -1)
1192: format_add(ft, "scroll_position", "%d", scroll_position);
1.16 nicm 1193:
1194: format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
1.59 nicm 1195: format_add(ft, "alternate_saved_x", "%u", wp->saved_cx);
1196: format_add(ft, "alternate_saved_y", "%u", wp->saved_cy);
1.16 nicm 1197:
1198: format_add(ft, "cursor_flag", "%d",
1199: !!(wp->base.mode & MODE_CURSOR));
1200: format_add(ft, "insert_flag", "%d",
1201: !!(wp->base.mode & MODE_INSERT));
1202: format_add(ft, "keypad_cursor_flag", "%d",
1203: !!(wp->base.mode & MODE_KCURSOR));
1204: format_add(ft, "keypad_flag", "%d",
1205: !!(wp->base.mode & MODE_KKEYPAD));
1206: format_add(ft, "wrap_flag", "%d",
1207: !!(wp->base.mode & MODE_WRAP));
1208:
1.62 nicm 1209: format_add(ft, "mouse_any_flag", "%d",
1210: !!(wp->base.mode & (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON)));
1.16 nicm 1211: format_add(ft, "mouse_standard_flag", "%d",
1212: !!(wp->base.mode & MODE_MOUSE_STANDARD));
1213: format_add(ft, "mouse_button_flag", "%d",
1214: !!(wp->base.mode & MODE_MOUSE_BUTTON));
1.19 nicm 1215:
1.80 nicm 1216: format_add_cb(ft, "pane_tabs", format_cb_pane_tabs);
1.8 nicm 1217: }
1218:
1.19 nicm 1219: /* Set default format keys for paste buffer. */
1.8 nicm 1220: void
1.94 nicm 1221: format_defaults_paste_buffer(struct format_tree *ft, struct paste_buffer *pb)
1.8 nicm 1222: {
1.81 nicm 1223: size_t bufsize;
1.42 nicm 1224: char *s;
1.8 nicm 1225:
1.81 nicm 1226: paste_buffer_data(pb, &bufsize);
1227: format_add(ft, "buffer_size", "%zu", bufsize);
1228: format_add(ft, "buffer_name", "%s", paste_buffer_name(pb));
1.8 nicm 1229:
1.94 nicm 1230: s = paste_make_sample(pb);
1.42 nicm 1231: format_add(ft, "buffer_sample", "%s", s);
1232: free(s);
1.1 nicm 1233: }
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