Annotation of mandoc/mansearch.c, Revision 1.12
1.12 ! schwarze 1: /* $Id: mansearch.c,v 1.11 2013/12/31 02:42:29 schwarze Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.7 schwarze 4: * Copyright (c) 2013 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 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 USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
22: #include <assert.h>
23: #include <fcntl.h>
24: #include <getopt.h>
1.6 schwarze 25: #include <limits.h>
1.8 schwarze 26: #include <regex.h>
1.1 kristaps 27: #include <stdio.h>
28: #include <stdint.h>
29: #include <stddef.h>
30: #include <stdlib.h>
31: #include <string.h>
32: #include <unistd.h>
33:
1.4 kristaps 34: #ifdef HAVE_OHASH
1.1 kristaps 35: #include <ohash.h>
1.4 kristaps 36: #else
37: #include "compat_ohash.h"
38: #endif
1.1 kristaps 39: #include <sqlite3.h>
40:
41: #include "mandoc.h"
42: #include "manpath.h"
43: #include "mansearch.h"
44:
1.3 kristaps 45: #define SQL_BIND_TEXT(_db, _s, _i, _v) \
1.8 schwarze 46: do { if (SQLITE_OK != sqlite3_bind_text \
1.2 kristaps 47: ((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \
1.8 schwarze 48: fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \
49: } while (0)
1.3 kristaps 50: #define SQL_BIND_INT64(_db, _s, _i, _v) \
1.8 schwarze 51: do { if (SQLITE_OK != sqlite3_bind_int64 \
1.2 kristaps 52: ((_s), (_i)++, (_v))) \
1.8 schwarze 53: fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \
54: } while (0)
55: #define SQL_BIND_BLOB(_db, _s, _i, _v) \
56: do { if (SQLITE_OK != sqlite3_bind_blob \
57: ((_s), (_i)++, (&_v), sizeof(_v), SQLITE_STATIC)) \
58: fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \
59: } while (0)
1.2 kristaps 60:
1.1 kristaps 61: struct expr {
1.8 schwarze 62: uint64_t bits; /* type-mask */
63: const char *substr; /* to search for, if applicable */
64: regex_t regexp; /* compiled regexp, if applicable */
65: struct expr *next; /* next in sequence */
1.1 kristaps 66: };
67:
68: struct match {
69: uint64_t id; /* identifier in database */
70: char *file; /* relative filepath of manpage */
71: char *desc; /* description of manpage */
72: int form; /* 0 == catpage */
73: };
74:
75: struct type {
76: uint64_t bits;
77: const char *name;
78: };
79:
80: static const struct type types[] = {
81: { TYPE_An, "An" },
82: { TYPE_Ar, "Ar" },
83: { TYPE_At, "At" },
84: { TYPE_Bsx, "Bsx" },
85: { TYPE_Bx, "Bx" },
86: { TYPE_Cd, "Cd" },
87: { TYPE_Cm, "Cm" },
88: { TYPE_Dv, "Dv" },
89: { TYPE_Dx, "Dx" },
90: { TYPE_Em, "Em" },
91: { TYPE_Er, "Er" },
92: { TYPE_Ev, "Ev" },
93: { TYPE_Fa, "Fa" },
94: { TYPE_Fl, "Fl" },
95: { TYPE_Fn, "Fn" },
96: { TYPE_Fn, "Fo" },
97: { TYPE_Ft, "Ft" },
98: { TYPE_Fx, "Fx" },
99: { TYPE_Ic, "Ic" },
100: { TYPE_In, "In" },
101: { TYPE_Lb, "Lb" },
102: { TYPE_Li, "Li" },
103: { TYPE_Lk, "Lk" },
104: { TYPE_Ms, "Ms" },
105: { TYPE_Mt, "Mt" },
106: { TYPE_Nd, "Nd" },
107: { TYPE_Nm, "Nm" },
108: { TYPE_Nx, "Nx" },
109: { TYPE_Ox, "Ox" },
110: { TYPE_Pa, "Pa" },
111: { TYPE_Rs, "Rs" },
112: { TYPE_Sh, "Sh" },
113: { TYPE_Ss, "Ss" },
114: { TYPE_St, "St" },
115: { TYPE_Sy, "Sy" },
116: { TYPE_Tn, "Tn" },
117: { TYPE_Va, "Va" },
118: { TYPE_Va, "Vt" },
119: { TYPE_Xr, "Xr" },
120: { ~0ULL, "any" },
121: { 0ULL, NULL }
122: };
123:
1.11 schwarze 124: static char *buildnames(sqlite3 *, sqlite3_stmt *, uint64_t);
1.12 ! schwarze 125: static char *buildoutput(sqlite3 *, sqlite3_stmt *,
! 126: uint64_t, uint64_t);
1.1 kristaps 127: static void *hash_alloc(size_t, void *);
128: static void hash_free(void *, size_t, void *);
129: static void *hash_halloc(size_t, void *);
1.5 kristaps 130: static struct expr *exprcomp(const struct mansearch *,
131: int, char *[]);
1.1 kristaps 132: static void exprfree(struct expr *);
1.8 schwarze 133: static struct expr *exprterm(const struct mansearch *, char *, int);
1.7 schwarze 134: static void sql_match(sqlite3_context *context,
135: int argc, sqlite3_value **argv);
1.8 schwarze 136: static void sql_regexp(sqlite3_context *context,
137: int argc, sqlite3_value **argv);
1.1 kristaps 138: static char *sql_statement(const struct expr *,
139: const char *, const char *);
140:
141: int
1.5 kristaps 142: mansearch(const struct mansearch *search,
1.12 ! schwarze 143: const struct manpaths *paths,
! 144: int argc, char *argv[],
! 145: const char *outkey,
1.1 kristaps 146: struct manpage **res, size_t *sz)
147: {
1.12 ! schwarze 148: int fd, rc, c, ibit;
1.1 kristaps 149: int64_t id;
1.12 ! schwarze 150: uint64_t outbit;
1.6 schwarze 151: char buf[PATH_MAX];
1.11 schwarze 152: char *sql;
1.10 schwarze 153: struct manpage *mpage;
1.1 kristaps 154: struct expr *e, *ep;
155: sqlite3 *db;
1.12 ! schwarze 156: sqlite3_stmt *s, *s2;
1.1 kristaps 157: struct match *mp;
158: struct ohash_info info;
159: struct ohash htab;
160: unsigned int idx;
161: size_t i, j, cur, maxres;
162:
163: memset(&info, 0, sizeof(struct ohash_info));
164:
165: info.halloc = hash_halloc;
166: info.alloc = hash_alloc;
167: info.hfree = hash_free;
168: info.key_offset = offsetof(struct match, id);
169:
1.2 kristaps 170: *sz = cur = maxres = 0;
1.1 kristaps 171: sql = NULL;
172: *res = NULL;
173: fd = -1;
174: e = NULL;
1.2 kristaps 175: rc = 0;
1.1 kristaps 176:
177: if (0 == argc)
178: goto out;
1.5 kristaps 179: if (NULL == (e = exprcomp(search, argc, argv)))
1.1 kristaps 180: goto out;
181:
1.12 ! schwarze 182: outbit = 0;
! 183: if (NULL != outkey) {
! 184: for (ibit = 0; types[ibit].bits; ibit++) {
! 185: if (0 == strcasecmp(types[ibit].name, outkey)) {
! 186: outbit = types[ibit].bits;
! 187: break;
! 188: }
! 189: }
! 190: }
! 191:
1.1 kristaps 192: /*
193: * Save a descriptor to the current working directory.
194: * Since pathnames in the "paths" variable might be relative,
195: * and we'll be chdir()ing into them, we need to keep a handle
196: * on our current directory from which to start the chdir().
197: */
198:
1.6 schwarze 199: if (NULL == getcwd(buf, PATH_MAX)) {
1.1 kristaps 200: perror(NULL);
201: goto out;
202: } else if (-1 == (fd = open(buf, O_RDONLY, 0))) {
203: perror(buf);
204: goto out;
205: }
206:
1.5 kristaps 207: sql = sql_statement(e, search->arch, search->sec);
1.1 kristaps 208:
209: /*
210: * Loop over the directories (containing databases) for us to
211: * search.
212: * Don't let missing/bad databases/directories phase us.
213: * In each, try to open the resident database and, if it opens,
214: * scan it for our match expression.
215: */
216:
217: for (i = 0; i < paths->sz; i++) {
218: if (-1 == fchdir(fd)) {
219: perror(buf);
220: free(*res);
221: break;
222: } else if (-1 == chdir(paths->paths[i])) {
223: perror(paths->paths[i]);
224: continue;
225: }
226:
1.2 kristaps 227: c = sqlite3_open_v2
228: (MANDOC_DB, &db,
229: SQLITE_OPEN_READONLY, NULL);
1.1 kristaps 230:
1.2 kristaps 231: if (SQLITE_OK != c) {
1.1 kristaps 232: perror(MANDOC_DB);
233: sqlite3_close(db);
234: continue;
235: }
236:
1.8 schwarze 237: /*
238: * Define the SQL functions for substring
239: * and regular expression matching.
240: */
1.7 schwarze 241:
242: c = sqlite3_create_function(db, "match", 2,
243: SQLITE_ANY, NULL, sql_match, NULL, NULL);
1.8 schwarze 244: assert(SQLITE_OK == c);
245: c = sqlite3_create_function(db, "regexp", 2,
246: SQLITE_ANY, NULL, sql_regexp, NULL, NULL);
247: assert(SQLITE_OK == c);
1.7 schwarze 248:
1.1 kristaps 249: j = 1;
1.2 kristaps 250: c = sqlite3_prepare_v2(db, sql, -1, &s, NULL);
251: if (SQLITE_OK != c)
252: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
1.1 kristaps 253:
1.5 kristaps 254: if (NULL != search->arch)
255: SQL_BIND_TEXT(db, s, j, search->arch);
256: if (NULL != search->sec)
257: SQL_BIND_TEXT(db, s, j, search->sec);
1.1 kristaps 258:
259: for (ep = e; NULL != ep; ep = ep->next) {
1.8 schwarze 260: if (NULL == ep->substr) {
261: SQL_BIND_BLOB(db, s, j, ep->regexp);
262: } else
263: SQL_BIND_TEXT(db, s, j, ep->substr);
1.3 kristaps 264: SQL_BIND_INT64(db, s, j, ep->bits);
1.1 kristaps 265: }
266:
267: memset(&htab, 0, sizeof(struct ohash));
268: ohash_init(&htab, 4, &info);
269:
270: /*
271: * Hash each entry on its [unique] document identifier.
272: * This is a uint64_t.
273: * Instead of using a hash function, simply convert the
274: * uint64_t to a uint32_t, the hash value's type.
275: * This gives good performance and preserves the
276: * distribution of buckets in the table.
277: */
1.2 kristaps 278: while (SQLITE_ROW == (c = sqlite3_step(s))) {
1.1 kristaps 279: id = sqlite3_column_int64(s, 0);
280: idx = ohash_lookup_memory
281: (&htab, (char *)&id,
282: sizeof(uint64_t), (uint32_t)id);
283:
284: if (NULL != ohash_find(&htab, idx))
285: continue;
286:
287: mp = mandoc_calloc(1, sizeof(struct match));
288: mp->id = id;
289: mp->file = mandoc_strdup
290: ((char *)sqlite3_column_text(s, 3));
291: mp->desc = mandoc_strdup
292: ((char *)sqlite3_column_text(s, 4));
293: mp->form = sqlite3_column_int(s, 5);
294: ohash_insert(&htab, idx, mp);
295: }
296:
1.2 kristaps 297: if (SQLITE_DONE != c)
298: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
299:
1.1 kristaps 300: sqlite3_finalize(s);
1.10 schwarze 301:
302: c = sqlite3_prepare_v2(db,
303: "SELECT * FROM mlinks WHERE pageid=?",
304: -1, &s, NULL);
305: if (SQLITE_OK != c)
306: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
1.1 kristaps 307:
1.12 ! schwarze 308: c = sqlite3_prepare_v2(db,
! 309: "SELECT * FROM keys WHERE pageid=? AND bits & ?",
! 310: -1, &s2, NULL);
! 311: if (SQLITE_OK != c)
! 312: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
! 313:
1.1 kristaps 314: for (mp = ohash_first(&htab, &idx);
315: NULL != mp;
316: mp = ohash_next(&htab, &idx)) {
317: if (cur + 1 > maxres) {
318: maxres += 1024;
319: *res = mandoc_realloc
320: (*res, maxres * sizeof(struct manpage));
321: }
1.10 schwarze 322: mpage = *res + cur;
323: if (-1 == asprintf(&mpage->file, "%s/%s",
324: paths->paths[i], mp->file)) {
325: perror(0);
326: exit((int)MANDOCLEVEL_SYSERR);
327: }
328: mpage->desc = mp->desc;
329: mpage->form = mp->form;
1.11 schwarze 330: mpage->names = buildnames(db, s, mp->id);
1.12 ! schwarze 331: mpage->output = outbit ?
! 332: buildoutput(db, s2, mp->id, outbit) : NULL;
1.10 schwarze 333:
1.1 kristaps 334: free(mp->file);
335: free(mp);
336: cur++;
337: }
1.10 schwarze 338:
339: sqlite3_finalize(s);
1.12 ! schwarze 340: sqlite3_finalize(s2);
1.10 schwarze 341: sqlite3_close(db);
1.1 kristaps 342: ohash_delete(&htab);
343: }
1.2 kristaps 344: rc = 1;
1.1 kristaps 345: out:
346: exprfree(e);
347: if (-1 != fd)
348: close(fd);
349: free(sql);
350: *sz = cur;
1.2 kristaps 351: return(rc);
1.11 schwarze 352: }
353:
354: static char *
355: buildnames(sqlite3 *db, sqlite3_stmt *s, uint64_t id)
356: {
357: char *names, *newnames;
358: const char *oldnames, *sep1, *name, *sec, *sep2, *arch;
359: size_t i;
360: int c;
361:
362: names = NULL;
363: i = 1;
364: SQL_BIND_INT64(db, s, i, id);
365: while (SQLITE_ROW == (c = sqlite3_step(s))) {
366: if (NULL == names) {
367: oldnames = "";
368: sep1 = "";
369: } else {
370: oldnames = names;
371: sep1 = ", ";
372: }
373: sec = sqlite3_column_text(s, 1);
374: arch = sqlite3_column_text(s, 2);
375: name = sqlite3_column_text(s, 3);
376: sep2 = '\0' == *arch ? "" : "/";
377: if (-1 == asprintf(&newnames, "%s%s%s(%s%s%s)",
378: oldnames, sep1, name, sec, sep2, arch)) {
379: perror(0);
380: exit((int)MANDOCLEVEL_SYSERR);
381: }
382: free(names);
383: names = newnames;
384: }
385: if (SQLITE_DONE != c)
386: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
387: sqlite3_reset(s);
388: return(names);
1.12 ! schwarze 389: }
! 390:
! 391: static char *
! 392: buildoutput(sqlite3 *db, sqlite3_stmt *s, uint64_t id, uint64_t outbit)
! 393: {
! 394: char *output, *newoutput;
! 395: const char *oldoutput, *sep1, *data;
! 396: size_t i;
! 397: int c;
! 398:
! 399: output = NULL;
! 400: i = 1;
! 401: SQL_BIND_INT64(db, s, i, id);
! 402: SQL_BIND_INT64(db, s, i, outbit);
! 403: while (SQLITE_ROW == (c = sqlite3_step(s))) {
! 404: if (NULL == output) {
! 405: oldoutput = "";
! 406: sep1 = "";
! 407: } else {
! 408: oldoutput = output;
! 409: sep1 = " # ";
! 410: }
! 411: data = sqlite3_column_text(s, 1);
! 412: if (-1 == asprintf(&newoutput, "%s%s%s",
! 413: oldoutput, sep1, data)) {
! 414: perror(0);
! 415: exit((int)MANDOCLEVEL_SYSERR);
! 416: }
! 417: free(output);
! 418: output = newoutput;
! 419: }
! 420: if (SQLITE_DONE != c)
! 421: fprintf(stderr, "%s\n", sqlite3_errmsg(db));
! 422: sqlite3_reset(s);
! 423: return(output);
1.1 kristaps 424: }
425:
426: /*
1.7 schwarze 427: * Implement substring match as an application-defined SQL function.
428: * Using the SQL LIKE or GLOB operators instead would be a bad idea
429: * because that would require escaping metacharacters in the string
430: * being searched for.
431: */
432: static void
433: sql_match(sqlite3_context *context, int argc, sqlite3_value **argv)
434: {
435:
436: assert(2 == argc);
437: sqlite3_result_int(context, NULL != strcasestr(
438: (const char *)sqlite3_value_text(argv[1]),
439: (const char *)sqlite3_value_text(argv[0])));
440: }
441:
442: /*
1.8 schwarze 443: * Implement regular expression match
444: * as an application-defined SQL function.
445: */
446: static void
447: sql_regexp(sqlite3_context *context, int argc, sqlite3_value **argv)
448: {
449:
450: assert(2 == argc);
451: sqlite3_result_int(context, !regexec(
452: (regex_t *)sqlite3_value_blob(argv[0]),
453: (const char *)sqlite3_value_text(argv[1]),
454: 0, NULL, 0));
455: }
456:
457: /*
1.1 kristaps 458: * Prepare the search SQL statement.
459: * We search for any of the words specified in our match expression.
460: * We filter the per-doc AND expressions when collecting results.
461: */
462: static char *
463: sql_statement(const struct expr *e, const char *arch, const char *sec)
464: {
465: char *sql;
1.7 schwarze 466: const char *substr = "(key MATCH ? AND bits & ?)";
1.8 schwarze 467: const char *regexp = "(key REGEXP ? AND bits & ?)";
1.1 kristaps 468: const char *andarch = "arch = ? AND ";
469: const char *andsec = "sec = ? AND ";
1.7 schwarze 470: size_t substrsz;
1.8 schwarze 471: size_t regexpsz;
1.1 kristaps 472: size_t sz;
473:
474: sql = mandoc_strdup
1.9 schwarze 475: ("SELECT pageid,bits,key,file,desc,form,sec,arch "
1.1 kristaps 476: "FROM keys "
1.9 schwarze 477: "INNER JOIN mpages ON mpages.id=keys.pageid "
1.1 kristaps 478: "WHERE ");
479: sz = strlen(sql);
1.7 schwarze 480: substrsz = strlen(substr);
1.8 schwarze 481: regexpsz = strlen(regexp);
1.1 kristaps 482:
483: if (NULL != arch) {
484: sz += strlen(andarch) + 1;
485: sql = mandoc_realloc(sql, sz);
486: strlcat(sql, andarch, sz);
487: }
1.2 kristaps 488:
1.1 kristaps 489: if (NULL != sec) {
490: sz += strlen(andsec) + 1;
491: sql = mandoc_realloc(sql, sz);
492: strlcat(sql, andsec, sz);
493: }
494:
495: sz += 2;
496: sql = mandoc_realloc(sql, sz);
497: strlcat(sql, "(", sz);
498:
499: for ( ; NULL != e; e = e->next) {
1.8 schwarze 500: sz += (NULL == e->substr ? regexpsz : substrsz) +
1.1 kristaps 501: (NULL == e->next ? 3 : 5);
502: sql = mandoc_realloc(sql, sz);
1.8 schwarze 503: strlcat(sql, NULL == e->substr ? regexp : substr, sz);
1.1 kristaps 504: strlcat(sql, NULL == e->next ? ");" : " OR ", sz);
505: }
506:
507: return(sql);
508: }
509:
510: /*
511: * Compile a set of string tokens into an expression.
512: * Tokens in "argv" are assumed to be individual expression atoms (e.g.,
513: * "(", "foo=bar", etc.).
514: */
515: static struct expr *
1.5 kristaps 516: exprcomp(const struct mansearch *search, int argc, char *argv[])
1.1 kristaps 517: {
1.8 schwarze 518: int i, cs;
1.1 kristaps 519: struct expr *first, *next, *cur;
520:
521: first = cur = NULL;
522:
523: for (i = 0; i < argc; i++) {
1.8 schwarze 524: if (0 == strcmp("-i", argv[i])) {
525: if (++i >= argc)
526: return(NULL);
527: cs = 0;
528: } else
529: cs = 1;
530: next = exprterm(search, argv[i], cs);
1.1 kristaps 531: if (NULL == next) {
532: exprfree(first);
533: return(NULL);
534: }
535: if (NULL != first) {
536: cur->next = next;
537: cur = next;
538: } else
539: cur = first = next;
540: }
541:
542: return(first);
543: }
544:
545: static struct expr *
1.8 schwarze 546: exprterm(const struct mansearch *search, char *buf, int cs)
1.1 kristaps 547: {
548: struct expr *e;
549: char *key, *v;
550: size_t i;
551:
552: if ('\0' == *buf)
553: return(NULL);
554:
555: e = mandoc_calloc(1, sizeof(struct expr));
556:
1.5 kristaps 557: /*"whatis" mode uses an opaque string and default fields. */
558:
559: if (MANSEARCH_WHATIS & search->flags) {
1.8 schwarze 560: e->substr = buf;
1.5 kristaps 561: e->bits = search->deftype;
562: return(e);
563: }
564:
1.1 kristaps 565: /*
566: * If no =~ is specified, search with equality over names and
567: * descriptions.
568: * If =~ begins the phrase, use name and description fields.
569: */
570:
571: if (NULL == (v = strpbrk(buf, "=~"))) {
1.8 schwarze 572: e->substr = buf;
1.5 kristaps 573: e->bits = search->deftype;
1.1 kristaps 574: return(e);
575: } else if (v == buf)
1.5 kristaps 576: e->bits = search->deftype;
1.1 kristaps 577:
1.8 schwarze 578: if ('~' == *v++) {
579: if (regcomp(&e->regexp, v,
580: REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE))) {
581: free(e);
582: return(NULL);
583: }
584: } else
585: e->substr = v;
586: v[-1] = '\0';
1.1 kristaps 587:
588: /*
589: * Parse out all possible fields.
590: * If the field doesn't resolve, bail.
591: */
592:
593: while (NULL != (key = strsep(&buf, ","))) {
594: if ('\0' == *key)
595: continue;
596: i = 0;
597: while (types[i].bits &&
598: strcasecmp(types[i].name, key))
599: i++;
600: if (0 == types[i].bits) {
601: free(e);
602: return(NULL);
603: }
604: e->bits |= types[i].bits;
605: }
606:
607: return(e);
608: }
609:
610: static void
611: exprfree(struct expr *p)
612: {
613: struct expr *pp;
614:
615: while (NULL != p) {
616: pp = p->next;
617: free(p);
618: p = pp;
619: }
620: }
621:
622: static void *
623: hash_halloc(size_t sz, void *arg)
624: {
625:
626: return(mandoc_calloc(sz, 1));
627: }
628:
629: static void *
630: hash_alloc(size_t sz, void *arg)
631: {
632:
633: return(mandoc_malloc(sz));
634: }
635:
636: static void
637: hash_free(void *p, size_t sz, void *arg)
638: {
639:
640: free(p);
641: }
CVSweb