version 1.56, 2015/03/27 17:37:25 |
version 1.71, 2017/04/18 13:57:56 |
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/* $Id$ */ |
/* $OpenBSD$ */ |
/* |
/* |
* Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2013-2017 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <sys/types.h> |
#include <sys/types.h> |
|
|
#include <assert.h> |
#include <assert.h> |
|
#if HAVE_ERR |
|
#include <err.h> |
|
#endif |
#include <errno.h> |
#include <errno.h> |
#include <fcntl.h> |
#include <fcntl.h> |
#include <getopt.h> |
|
#include <glob.h> |
#include <glob.h> |
#include <limits.h> |
#include <limits.h> |
#include <regex.h> |
#include <regex.h> |
|
|
#include <string.h> |
#include <string.h> |
#include <unistd.h> |
#include <unistd.h> |
|
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#if HAVE_OHASH |
|
#include <ohash.h> |
|
#else |
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#include "compat_ohash.h" |
|
#endif |
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#include <sqlite3.h> |
|
#ifndef SQLITE_DETERMINISTIC |
|
#define SQLITE_DETERMINISTIC 0 |
|
#endif |
|
|
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#include "mandoc.h" |
#include "mandoc.h" |
#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
|
#include "mandoc_ohash.h" |
#include "manconf.h" |
#include "manconf.h" |
#include "mansearch.h" |
#include "mansearch.h" |
|
#include "dbm.h" |
|
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extern int mansearch_keymax; |
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extern const char *const mansearch_keynames[]; |
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|
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#define SQL_BIND_TEXT(_db, _s, _i, _v) \ |
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do { if (SQLITE_OK != sqlite3_bind_text \ |
|
((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \ |
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fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \ |
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} while (0) |
|
#define SQL_BIND_INT64(_db, _s, _i, _v) \ |
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do { if (SQLITE_OK != sqlite3_bind_int64 \ |
|
((_s), (_i)++, (_v))) \ |
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fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \ |
|
} while (0) |
|
#define SQL_BIND_BLOB(_db, _s, _i, _v) \ |
|
do { if (SQLITE_OK != sqlite3_bind_blob \ |
|
((_s), (_i)++, (&_v), sizeof(_v), SQLITE_STATIC)) \ |
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fprintf(stderr, "%s\n", sqlite3_errmsg((_db))); \ |
|
} while (0) |
|
|
|
struct expr { |
struct expr { |
regex_t regexp; /* compiled regexp, if applicable */ |
/* Used for terms: */ |
const char *substr; /* to search for, if applicable */ |
struct dbm_match match; /* Match type and expression. */ |
struct expr *next; /* next in sequence */ |
uint64_t bits; /* Type mask. */ |
uint64_t bits; /* type-mask */ |
/* Used for OR and AND groups: */ |
int equal; /* equality, not subsring match */ |
struct expr *next; /* Next child in the parent group. */ |
int open; /* opening parentheses before */ |
struct expr *child; /* First child in this group. */ |
int and; /* logical AND before */ |
enum { EXPR_TERM, EXPR_OR, EXPR_AND } type; |
int close; /* closing parentheses after */ |
|
}; |
}; |
|
|
struct match { |
const char *const mansearch_keynames[KEY_MAX] = { |
uint64_t pageid; /* identifier in database */ |
"arch", "sec", "Xr", "Ar", "Fa", "Fl", "Dv", "Fn", |
uint64_t bits; /* name type mask */ |
"Ic", "Pa", "Cm", "Li", "Em", "Cd", "Va", "Ft", |
char *desc; /* manual page description */ |
"Tn", "Er", "Ev", "Sy", "Sh", "In", "Ss", "Ox", |
int form; /* bit field: formatted, zipped? */ |
"An", "Mt", "St", "Bx", "At", "Nx", "Fx", "Lk", |
|
"Ms", "Bsx", "Dx", "Rs", "Vt", "Lb", "Nm", "Nd" |
}; |
}; |
|
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static void buildnames(const struct mansearch *, |
|
struct manpage *, sqlite3 *, |
static struct ohash *manmerge(struct expr *, struct ohash *); |
sqlite3_stmt *, uint64_t, |
static struct ohash *manmerge_term(struct expr *, struct ohash *); |
const char *, int form); |
static struct ohash *manmerge_or(struct expr *, struct ohash *); |
static char *buildoutput(sqlite3 *, sqlite3_stmt *, |
static struct ohash *manmerge_and(struct expr *, struct ohash *); |
uint64_t, uint64_t); |
static char *buildnames(const struct dbm_page *); |
static void *hash_alloc(size_t, void *); |
static char *buildoutput(size_t, struct dbm_page *); |
static void hash_free(void *, void *); |
static size_t lstlen(const char *, size_t); |
static void *hash_calloc(size_t, size_t, void *); |
static void lstcat(char *, size_t *, const char *, const char *); |
|
static int lstmatch(const char *, const char *); |
static struct expr *exprcomp(const struct mansearch *, |
static struct expr *exprcomp(const struct mansearch *, |
int, char *[]); |
int, char *[], int *); |
|
static struct expr *expr_and(const struct mansearch *, |
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int, char *[], int *); |
|
static struct expr *exprterm(const struct mansearch *, |
|
int, char *[], int *); |
static void exprfree(struct expr *); |
static void exprfree(struct expr *); |
static struct expr *exprterm(const struct mansearch *, char *, int); |
|
static int manpage_compare(const void *, const void *); |
static int manpage_compare(const void *, const void *); |
static void sql_append(char **sql, size_t *sz, |
|
const char *newstr, int count); |
|
static void sql_match(sqlite3_context *context, |
|
int argc, sqlite3_value **argv); |
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static void sql_regexp(sqlite3_context *context, |
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int argc, sqlite3_value **argv); |
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static char *sql_statement(const struct expr *); |
|
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int |
int |
mansearch_setup(int start) |
|
{ |
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static void *pagecache; |
|
int c; |
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|
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#define PC_PAGESIZE 1280 |
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#define PC_NUMPAGES 256 |
|
|
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if (start) { |
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if (NULL != pagecache) { |
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fprintf(stderr, "pagecache already enabled\n"); |
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return((int)MANDOCLEVEL_BADARG); |
|
} |
|
|
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pagecache = mmap(NULL, PC_PAGESIZE * PC_NUMPAGES, |
|
PROT_READ | PROT_WRITE, |
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MAP_SHARED | MAP_ANON, -1, 0); |
|
|
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if (MAP_FAILED == pagecache) { |
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perror("mmap"); |
|
pagecache = NULL; |
|
return((int)MANDOCLEVEL_SYSERR); |
|
} |
|
|
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c = sqlite3_config(SQLITE_CONFIG_PAGECACHE, |
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pagecache, PC_PAGESIZE, PC_NUMPAGES); |
|
|
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if (SQLITE_OK == c) |
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return((int)MANDOCLEVEL_OK); |
|
|
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fprintf(stderr, "pagecache: %s\n", sqlite3_errstr(c)); |
|
|
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} else if (NULL == pagecache) { |
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fprintf(stderr, "pagecache missing\n"); |
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return((int)MANDOCLEVEL_BADARG); |
|
} |
|
|
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if (-1 == munmap(pagecache, PC_PAGESIZE * PC_NUMPAGES)) { |
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perror("munmap"); |
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pagecache = NULL; |
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return((int)MANDOCLEVEL_SYSERR); |
|
} |
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|
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pagecache = NULL; |
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return((int)MANDOCLEVEL_OK); |
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} |
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int |
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mansearch(const struct mansearch *search, |
mansearch(const struct mansearch *search, |
const struct manpaths *paths, |
const struct manpaths *paths, |
int argc, char *argv[], |
int argc, char *argv[], |
struct manpage **res, size_t *sz) |
struct manpage **res, size_t *sz) |
{ |
{ |
int fd, rc, c, indexbit; |
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int64_t pageid; |
|
uint64_t outbit, iterbit; |
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char buf[PATH_MAX]; |
char buf[PATH_MAX]; |
char *sql; |
struct dbm_res *rp; |
|
struct expr *e; |
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struct dbm_page *page; |
struct manpage *mpage; |
struct manpage *mpage; |
struct expr *e, *ep; |
struct ohash *htab; |
sqlite3 *db; |
size_t cur, i, maxres, outkey; |
sqlite3_stmt *s, *s2; |
unsigned int slot; |
struct match *mp; |
int argi, chdir_status, getcwd_status, im; |
struct ohash_info info; |
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struct ohash htab; |
|
unsigned int idx; |
|
size_t i, j, cur, maxres; |
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|
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info.calloc = hash_calloc; |
argi = 0; |
info.alloc = hash_alloc; |
if ((e = exprcomp(search, argc, argv, &argi)) == NULL) { |
info.free = hash_free; |
*sz = 0; |
info.key_offset = offsetof(struct match, pageid); |
return 0; |
|
} |
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*sz = cur = maxres = 0; |
cur = maxres = 0; |
sql = NULL; |
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*res = NULL; |
*res = NULL; |
fd = -1; |
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e = NULL; |
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rc = 0; |
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if (0 == argc) |
outkey = KEY_Nd; |
goto out; |
if (search->outkey != NULL) |
if (NULL == (e = exprcomp(search, argc, argv))) |
for (im = 0; im < KEY_MAX; im++) |
goto out; |
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if (NULL != search->outkey) { |
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outbit = TYPE_Nd; |
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for (indexbit = 0, iterbit = 1; |
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indexbit < mansearch_keymax; |
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indexbit++, iterbit <<= 1) { |
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if (0 == strcasecmp(search->outkey, |
if (0 == strcasecmp(search->outkey, |
mansearch_keynames[indexbit])) { |
mansearch_keynames[im])) { |
outbit = iterbit; |
outkey = im; |
break; |
break; |
} |
} |
} |
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} else |
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outbit = 0; |
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/* |
/* |
* Save a descriptor to the current working directory. |
* Remember the original working directory, if possible. |
* Since pathnames in the "paths" variable might be relative, |
* This will be needed if the second or a later directory |
* and we'll be chdir()ing into them, we need to keep a handle |
* is given as a relative path. |
* on our current directory from which to start the chdir(). |
* Do not error out if the current directory is not |
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* searchable: Maybe it won't be needed after all. |
*/ |
*/ |
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if (NULL == getcwd(buf, PATH_MAX)) { |
if (getcwd(buf, PATH_MAX) == NULL) { |
perror("getcwd"); |
getcwd_status = 0; |
goto out; |
(void)strlcpy(buf, strerror(errno), sizeof(buf)); |
} else if (-1 == (fd = open(buf, O_RDONLY, 0))) { |
} else |
perror(buf); |
getcwd_status = 1; |
goto out; |
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} |
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sql = sql_statement(e); |
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/* |
/* |
* Loop over the directories (containing databases) for us to |
* Loop over the directories (containing databases) for us to |
* search. |
* search. |
Line 234 mansearch(const struct mansearch *search, |
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Line 137 mansearch(const struct mansearch *search, |
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* scan it for our match expression. |
* scan it for our match expression. |
*/ |
*/ |
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chdir_status = 0; |
for (i = 0; i < paths->sz; i++) { |
for (i = 0; i < paths->sz; i++) { |
if (-1 == fchdir(fd)) { |
if (chdir_status && paths->paths[i][0] != '/') { |
perror(buf); |
if ( ! getcwd_status) { |
free(*res); |
warnx("%s: getcwd: %s", paths->paths[i], buf); |
break; |
continue; |
} else if (-1 == chdir(paths->paths[i])) { |
} else if (chdir(buf) == -1) { |
perror(paths->paths[i]); |
warn("%s", buf); |
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continue; |
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} |
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} |
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if (chdir(paths->paths[i]) == -1) { |
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warn("%s", paths->paths[i]); |
continue; |
continue; |
} |
} |
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chdir_status = 1; |
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c = sqlite3_open_v2(MANDOC_DB, &db, |
if (dbm_open(MANDOC_DB) == -1) { |
SQLITE_OPEN_READONLY, NULL); |
warn("%s/%s", paths->paths[i], MANDOC_DB); |
|
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if (SQLITE_OK != c) { |
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fprintf(stderr, "%s/%s: %s\n", |
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paths->paths[i], MANDOC_DB, strerror(errno)); |
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sqlite3_close(db); |
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continue; |
continue; |
} |
} |
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/* |
if ((htab = manmerge(e, NULL)) == NULL) { |
* Define the SQL functions for substring |
dbm_close(); |
* and regular expression matching. |
continue; |
*/ |
|
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c = sqlite3_create_function(db, "match", 2, |
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SQLITE_UTF8 | SQLITE_DETERMINISTIC, |
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NULL, sql_match, NULL, NULL); |
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assert(SQLITE_OK == c); |
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c = sqlite3_create_function(db, "regexp", 2, |
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SQLITE_UTF8 | SQLITE_DETERMINISTIC, |
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NULL, sql_regexp, NULL, NULL); |
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assert(SQLITE_OK == c); |
|
|
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j = 1; |
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c = sqlite3_prepare_v2(db, sql, -1, &s, NULL); |
|
if (SQLITE_OK != c) |
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fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
|
|
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for (ep = e; NULL != ep; ep = ep->next) { |
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if (NULL == ep->substr) { |
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SQL_BIND_BLOB(db, s, j, ep->regexp); |
|
} else |
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SQL_BIND_TEXT(db, s, j, ep->substr); |
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if (0 == ((TYPE_Nd | TYPE_Nm) & ep->bits)) |
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SQL_BIND_INT64(db, s, j, ep->bits); |
|
} |
} |
|
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memset(&htab, 0, sizeof(struct ohash)); |
for (rp = ohash_first(htab, &slot); rp != NULL; |
ohash_init(&htab, 4, &info); |
rp = ohash_next(htab, &slot)) { |
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page = dbm_page_get(rp->page); |
|
|
/* |
if (lstmatch(search->sec, page->sect) == 0 || |
* Hash each entry on its [unique] document identifier. |
lstmatch(search->arch, page->arch) == 0) |
* This is a uint64_t. |
|
* Instead of using a hash function, simply convert the |
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* uint64_t to a uint32_t, the hash value's type. |
|
* This gives good performance and preserves the |
|
* distribution of buckets in the table. |
|
*/ |
|
while (SQLITE_ROW == (c = sqlite3_step(s))) { |
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pageid = sqlite3_column_int64(s, 2); |
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idx = ohash_lookup_memory(&htab, |
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(char *)&pageid, sizeof(uint64_t), |
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(uint32_t)pageid); |
|
|
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if (NULL != ohash_find(&htab, idx)) |
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continue; |
continue; |
|
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mp = mandoc_calloc(1, sizeof(struct match)); |
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mp->pageid = pageid; |
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mp->form = sqlite3_column_int(s, 1); |
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mp->bits = sqlite3_column_int64(s, 3); |
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if (TYPE_Nd == outbit) |
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mp->desc = mandoc_strdup((const char *) |
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sqlite3_column_text(s, 0)); |
|
ohash_insert(&htab, idx, mp); |
|
} |
|
|
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if (SQLITE_DONE != c) |
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fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
|
|
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sqlite3_finalize(s); |
|
|
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c = sqlite3_prepare_v2(db, |
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"SELECT sec, arch, name, pageid FROM mlinks " |
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"WHERE pageid=? ORDER BY sec, arch, name", |
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-1, &s, NULL); |
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if (SQLITE_OK != c) |
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fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
|
|
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c = sqlite3_prepare_v2(db, |
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"SELECT bits, key, pageid FROM keys " |
|
"WHERE pageid=? AND bits & ?", |
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-1, &s2, NULL); |
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if (SQLITE_OK != c) |
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fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
|
|
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for (mp = ohash_first(&htab, &idx); |
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NULL != mp; |
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mp = ohash_next(&htab, &idx)) { |
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if (cur + 1 > maxres) { |
if (cur + 1 > maxres) { |
maxres += 1024; |
maxres += 1024; |
*res = mandoc_reallocarray(*res, |
*res = mandoc_reallocarray(*res, |
maxres, sizeof(struct manpage)); |
maxres, sizeof(**res)); |
} |
} |
mpage = *res + cur; |
mpage = *res + cur; |
|
mandoc_asprintf(&mpage->file, "%s/%s", |
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paths->paths[i], page->file + 1); |
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mpage->names = buildnames(page); |
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mpage->output = buildoutput(outkey, page); |
mpage->ipath = i; |
mpage->ipath = i; |
mpage->bits = mp->bits; |
mpage->bits = rp->bits; |
mpage->sec = 10; |
mpage->sec = *page->sect - '0'; |
mpage->form = mp->form; |
if (mpage->sec < 0 || mpage->sec > 9) |
buildnames(search, mpage, db, s, mp->pageid, |
mpage->sec = 10; |
paths->paths[i], mp->form); |
mpage->form = *page->file; |
if (mpage->names != NULL) { |
free(rp); |
mpage->output = TYPE_Nd & outbit ? |
cur++; |
mp->desc : outbit ? |
|
buildoutput(db, s2, mp->pageid, outbit) : |
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NULL; |
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cur++; |
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} |
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free(mp); |
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} |
} |
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ohash_delete(htab); |
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free(htab); |
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dbm_close(); |
|
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sqlite3_finalize(s); |
|
sqlite3_finalize(s2); |
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sqlite3_close(db); |
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ohash_delete(&htab); |
|
|
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/* |
/* |
* In man(1) mode, prefer matches in earlier trees |
* In man(1) mode, prefer matches in earlier trees |
* over matches in later trees. |
* over matches in later trees. |
Line 370 mansearch(const struct mansearch *search, |
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Line 204 mansearch(const struct mansearch *search, |
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break; |
break; |
} |
} |
qsort(*res, cur, sizeof(struct manpage), manpage_compare); |
qsort(*res, cur, sizeof(struct manpage), manpage_compare); |
rc = 1; |
if (chdir_status && getcwd_status && chdir(buf) == -1) |
out: |
warn("%s", buf); |
if (-1 != fd) { |
|
if (-1 == fchdir(fd)) |
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perror(buf); |
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close(fd); |
|
} |
|
exprfree(e); |
exprfree(e); |
free(sql); |
|
*sz = cur; |
*sz = cur; |
return(rc); |
return 1; |
} |
} |
|
|
void |
/* |
mansearch_free(struct manpage *res, size_t sz) |
* Merge the results for the expression tree rooted at e |
|
* into the the result list htab. |
|
*/ |
|
static struct ohash * |
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manmerge(struct expr *e, struct ohash *htab) |
{ |
{ |
size_t i; |
switch (e->type) { |
|
case EXPR_TERM: |
for (i = 0; i < sz; i++) { |
return manmerge_term(e, htab); |
free(res[i].file); |
case EXPR_OR: |
free(res[i].names); |
return manmerge_or(e->child, htab); |
free(res[i].output); |
case EXPR_AND: |
|
return manmerge_and(e->child, htab); |
|
default: |
|
abort(); |
} |
} |
free(res); |
|
} |
} |
|
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static int |
static struct ohash * |
manpage_compare(const void *vp1, const void *vp2) |
manmerge_term(struct expr *e, struct ohash *htab) |
{ |
{ |
const struct manpage *mp1, *mp2; |
struct dbm_res res, *rp; |
int diff; |
uint64_t ib; |
|
unsigned int slot; |
|
int im; |
|
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mp1 = vp1; |
if (htab == NULL) { |
mp2 = vp2; |
htab = mandoc_malloc(sizeof(*htab)); |
return( (diff = mp2->bits - mp1->bits) ? diff : |
mandoc_ohash_init(htab, 4, offsetof(struct dbm_res, page)); |
(diff = mp1->sec - mp2->sec) ? diff : |
} |
strcasecmp(mp1->names, mp2->names)); |
|
} |
|
|
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static void |
for (im = 0, ib = 1; im < KEY_MAX; im++, ib <<= 1) { |
buildnames(const struct mansearch *search, struct manpage *mpage, |
if ((e->bits & ib) == 0) |
sqlite3 *db, sqlite3_stmt *s, |
continue; |
uint64_t pageid, const char *path, int form) |
|
{ |
|
glob_t globinfo; |
|
char *firstname, *newnames, *prevsec, *prevarch; |
|
const char *oldnames, *sep1, *name, *sec, *sep2, *arch, *fsec; |
|
size_t i; |
|
int c, globres; |
|
|
|
mpage->file = NULL; |
switch (ib) { |
mpage->names = NULL; |
case TYPE_arch: |
firstname = prevsec = prevarch = NULL; |
dbm_page_byarch(&e->match); |
i = 1; |
break; |
SQL_BIND_INT64(db, s, i, pageid); |
case TYPE_sec: |
while (SQLITE_ROW == (c = sqlite3_step(s))) { |
dbm_page_bysect(&e->match); |
|
break; |
|
case TYPE_Nm: |
|
dbm_page_byname(&e->match); |
|
break; |
|
case TYPE_Nd: |
|
dbm_page_bydesc(&e->match); |
|
break; |
|
default: |
|
dbm_page_bymacro(im - 2, &e->match); |
|
break; |
|
} |
|
|
/* Decide whether we already have some names. */ |
/* |
|
* When hashing for deduplication, use the unique |
|
* page ID itself instead of a hash function; |
|
* that is quite efficient. |
|
*/ |
|
|
if (NULL == mpage->names) { |
for (;;) { |
oldnames = ""; |
res = dbm_page_next(); |
sep1 = ""; |
if (res.page == -1) |
} else { |
break; |
oldnames = mpage->names; |
slot = ohash_lookup_memory(htab, |
sep1 = ", "; |
(char *)&res, sizeof(res.page), res.page); |
|
if ((rp = ohash_find(htab, slot)) != NULL) { |
|
rp->bits |= res.bits; |
|
continue; |
|
} |
|
rp = mandoc_malloc(sizeof(*rp)); |
|
*rp = res; |
|
ohash_insert(htab, slot, rp); |
} |
} |
|
} |
|
return htab; |
|
} |
|
|
/* Fetch the next name, rejecting sec/arch mismatches. */ |
static struct ohash * |
|
manmerge_or(struct expr *e, struct ohash *htab) |
|
{ |
|
while (e != NULL) { |
|
htab = manmerge(e, htab); |
|
e = e->next; |
|
} |
|
return htab; |
|
} |
|
|
sec = (const char *)sqlite3_column_text(s, 0); |
static struct ohash * |
if (search->sec != NULL && strcasecmp(sec, search->sec)) |
manmerge_and(struct expr *e, struct ohash *htab) |
continue; |
{ |
arch = (const char *)sqlite3_column_text(s, 1); |
struct ohash *hand, *h1, *h2; |
if (search->arch != NULL && *arch != '\0' && |
struct dbm_res *res; |
strcasecmp(arch, search->arch)) |
unsigned int slot1, slot2; |
continue; |
|
name = (const char *)sqlite3_column_text(s, 2); |
|
|
|
/* Remember the first section found. */ |
/* Evaluate the first term of the AND clause. */ |
|
|
if (9 < mpage->sec && '1' <= *sec && '9' >= *sec) |
hand = manmerge(e, NULL); |
mpage->sec = (*sec - '1') + 1; |
|
|
|
/* If the section changed, append the old one. */ |
while ((e = e->next) != NULL) { |
|
|
if (NULL != prevsec && |
/* Evaluate the next term and prepare for ANDing. */ |
(strcmp(sec, prevsec) || |
|
strcmp(arch, prevarch))) { |
|
sep2 = '\0' == *prevarch ? "" : "/"; |
|
mandoc_asprintf(&newnames, "%s(%s%s%s)", |
|
oldnames, prevsec, sep2, prevarch); |
|
free(mpage->names); |
|
oldnames = mpage->names = newnames; |
|
free(prevsec); |
|
free(prevarch); |
|
prevsec = prevarch = NULL; |
|
} |
|
|
|
/* Save the new section, to append it later. */ |
h2 = manmerge(e, NULL); |
|
if (ohash_entries(h2) < ohash_entries(hand)) { |
|
h1 = h2; |
|
h2 = hand; |
|
} else |
|
h1 = hand; |
|
hand = mandoc_malloc(sizeof(*hand)); |
|
mandoc_ohash_init(hand, 4, offsetof(struct dbm_res, page)); |
|
|
if (NULL == prevsec) { |
/* Keep all pages that are in both result sets. */ |
prevsec = mandoc_strdup(sec); |
|
prevarch = mandoc_strdup(arch); |
for (res = ohash_first(h1, &slot1); res != NULL; |
|
res = ohash_next(h1, &slot1)) { |
|
if (ohash_find(h2, ohash_lookup_memory(h2, |
|
(char *)res, sizeof(res->page), |
|
res->page)) == NULL) |
|
free(res); |
|
else |
|
ohash_insert(hand, ohash_lookup_memory(hand, |
|
(char *)res, sizeof(res->page), |
|
res->page), res); |
} |
} |
|
|
/* Append the new name. */ |
/* Discard the merged results. */ |
|
|
mandoc_asprintf(&newnames, "%s%s%s", |
for (res = ohash_first(h2, &slot2); res != NULL; |
oldnames, sep1, name); |
res = ohash_next(h2, &slot2)) |
free(mpage->names); |
free(res); |
mpage->names = newnames; |
ohash_delete(h2); |
|
free(h2); |
|
ohash_delete(h1); |
|
free(h1); |
|
} |
|
|
/* Also save the first file name encountered. */ |
/* Merge the result of the AND into htab. */ |
|
|
if (mpage->file != NULL) |
if (htab == NULL) |
continue; |
return hand; |
|
|
if (form & FORM_SRC) { |
for (res = ohash_first(hand, &slot1); res != NULL; |
sep1 = "man"; |
res = ohash_next(hand, &slot1)) { |
fsec = sec; |
slot2 = ohash_lookup_memory(htab, |
} else { |
(char *)res, sizeof(res->page), res->page); |
sep1 = "cat"; |
if (ohash_find(htab, slot2) == NULL) |
fsec = "0"; |
ohash_insert(htab, slot2, res); |
} |
|
sep2 = *arch == '\0' ? "" : "/"; |
|
mandoc_asprintf(&mpage->file, "%s/%s%s%s%s/%s.%s", |
|
path, sep1, sec, sep2, arch, name, fsec); |
|
if (access(mpage->file, R_OK) != -1) |
|
continue; |
|
|
|
/* Handle unusual file name extensions. */ |
|
|
|
if (firstname == NULL) |
|
firstname = mpage->file; |
|
else |
else |
free(mpage->file); |
free(res); |
mandoc_asprintf(&mpage->file, "%s/%s%s%s%s/%s.*", |
|
path, sep1, sec, sep2, arch, name); |
|
globres = glob(mpage->file, 0, NULL, &globinfo); |
|
free(mpage->file); |
|
mpage->file = globres ? NULL : |
|
mandoc_strdup(*globinfo.gl_pathv); |
|
globfree(&globinfo); |
|
} |
} |
if (c != SQLITE_DONE) |
|
fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
|
sqlite3_reset(s); |
|
|
|
/* If none of the files is usable, use the first name. */ |
/* Discard the merged result. */ |
|
|
if (mpage->file == NULL) |
ohash_delete(hand); |
mpage->file = firstname; |
free(hand); |
else if (mpage->file != firstname) |
return htab; |
free(firstname); |
} |
|
|
/* Append one final section to the names. */ |
void |
|
mansearch_free(struct manpage *res, size_t sz) |
|
{ |
|
size_t i; |
|
|
if (prevsec != NULL) { |
for (i = 0; i < sz; i++) { |
sep2 = *prevarch == '\0' ? "" : "/"; |
free(res[i].file); |
mandoc_asprintf(&newnames, "%s(%s%s%s)", |
free(res[i].names); |
mpage->names, prevsec, sep2, prevarch); |
free(res[i].output); |
free(mpage->names); |
|
mpage->names = newnames; |
|
free(prevsec); |
|
free(prevarch); |
|
} |
} |
|
free(res); |
} |
} |
|
|
|
static int |
|
manpage_compare(const void *vp1, const void *vp2) |
|
{ |
|
const struct manpage *mp1, *mp2; |
|
int diff; |
|
|
|
mp1 = vp1; |
|
mp2 = vp2; |
|
return (diff = mp2->bits - mp1->bits) ? diff : |
|
(diff = mp1->sec - mp2->sec) ? diff : |
|
strcasecmp(mp1->names, mp2->names); |
|
} |
|
|
static char * |
static char * |
buildoutput(sqlite3 *db, sqlite3_stmt *s, uint64_t pageid, uint64_t outbit) |
buildnames(const struct dbm_page *page) |
{ |
{ |
char *output, *newoutput; |
char *buf; |
const char *oldoutput, *sep1, *data; |
size_t i, sz; |
size_t i; |
|
int c; |
|
|
|
output = NULL; |
sz = lstlen(page->name, 2) + 1 + lstlen(page->sect, 2) + |
i = 1; |
(page->arch == NULL ? 0 : 1 + lstlen(page->arch, 2)) + 2; |
SQL_BIND_INT64(db, s, i, pageid); |
buf = mandoc_malloc(sz); |
SQL_BIND_INT64(db, s, i, outbit); |
i = 0; |
while (SQLITE_ROW == (c = sqlite3_step(s))) { |
lstcat(buf, &i, page->name, ", "); |
if (NULL == output) { |
buf[i++] = '('; |
oldoutput = ""; |
lstcat(buf, &i, page->sect, ", "); |
sep1 = ""; |
if (page->arch != NULL) { |
} else { |
buf[i++] = '/'; |
oldoutput = output; |
lstcat(buf, &i, page->arch, ", "); |
sep1 = " # "; |
|
} |
|
data = (const char *)sqlite3_column_text(s, 1); |
|
mandoc_asprintf(&newoutput, "%s%s%s", |
|
oldoutput, sep1, data); |
|
free(output); |
|
output = newoutput; |
|
} |
} |
if (SQLITE_DONE != c) |
buf[i++] = ')'; |
fprintf(stderr, "%s\n", sqlite3_errmsg(db)); |
buf[i++] = '\0'; |
sqlite3_reset(s); |
assert(i == sz); |
return(output); |
return buf; |
} |
} |
|
|
/* |
/* |
* Implement substring match as an application-defined SQL function. |
* Count the buffer space needed to print the NUL-terminated |
* Using the SQL LIKE or GLOB operators instead would be a bad idea |
* list of NUL-terminated strings, when printing sep separator |
* because that would require escaping metacharacters in the string |
* characters between strings. |
* being searched for. |
|
*/ |
*/ |
static void |
static size_t |
sql_match(sqlite3_context *context, int argc, sqlite3_value **argv) |
lstlen(const char *cp, size_t sep) |
{ |
{ |
|
size_t sz; |
|
|
assert(2 == argc); |
for (sz = 0;; sz++) { |
sqlite3_result_int(context, NULL != strcasestr( |
if (cp[0] == '\0') { |
(const char *)sqlite3_value_text(argv[1]), |
if (cp[1] == '\0') |
(const char *)sqlite3_value_text(argv[0]))); |
break; |
|
sz += sep - 1; |
|
} else if (cp[0] < ' ') |
|
sz--; |
|
cp++; |
|
} |
|
return sz; |
} |
} |
|
|
/* |
/* |
* Implement regular expression match |
* Print the NUL-terminated list of NUL-terminated strings |
* as an application-defined SQL function. |
* into the buffer, seperating strings with sep. |
*/ |
*/ |
static void |
static void |
sql_regexp(sqlite3_context *context, int argc, sqlite3_value **argv) |
lstcat(char *buf, size_t *i, const char *cp, const char *sep) |
{ |
{ |
|
const char *s; |
|
|
assert(2 == argc); |
for (;;) { |
sqlite3_result_int(context, !regexec( |
if (cp[0] == '\0') { |
(regex_t *)sqlite3_value_blob(argv[0]), |
if (cp[1] == '\0') |
(const char *)sqlite3_value_text(argv[1]), |
break; |
0, NULL, 0)); |
s = sep; |
|
while (*s != '\0') |
|
buf[(*i)++] = *s++; |
|
} else if (cp[0] >= ' ') |
|
buf[(*i)++] = cp[0]; |
|
cp++; |
|
} |
} |
} |
|
|
static void |
/* |
sql_append(char **sql, size_t *sz, const char *newstr, int count) |
* Return 1 if the string *want occurs in any of the strings |
|
* in the NUL-terminated string list *have, or 0 otherwise. |
|
* If either argument is NULL or empty, assume no filtering |
|
* is desired and return 1. |
|
*/ |
|
static int |
|
lstmatch(const char *want, const char *have) |
{ |
{ |
size_t newsz; |
if (want == NULL || have == NULL || *have == '\0') |
|
return 1; |
newsz = 1 < count ? (size_t)count : strlen(newstr); |
while (*have != '\0') { |
*sql = mandoc_realloc(*sql, *sz + newsz + 1); |
if (strcasestr(have, want) != NULL) |
if (1 < count) |
return 1; |
memset(*sql + *sz, *newstr, (size_t)count); |
have = strchr(have, '\0') + 1; |
else |
} |
memcpy(*sql + *sz, newstr, newsz); |
return 0; |
*sz += newsz; |
|
(*sql)[*sz] = '\0'; |
|
} |
} |
|
|
/* |
/* |
* Prepare the search SQL statement. |
* Build a list of values taken by the macro im in the manual page. |
*/ |
*/ |
static char * |
static char * |
sql_statement(const struct expr *e) |
buildoutput(size_t im, struct dbm_page *page) |
{ |
{ |
char *sql; |
const char *oldoutput, *sep, *input; |
size_t sz; |
char *output, *newoutput, *value; |
int needop; |
size_t sz, i; |
|
|
sql = mandoc_strdup(e->equal ? |
switch (im) { |
"SELECT desc, form, pageid, bits " |
case KEY_Nd: |
"FROM mpages NATURAL JOIN names WHERE " : |
return mandoc_strdup(page->desc); |
"SELECT desc, form, pageid, 0 FROM mpages WHERE "); |
case KEY_Nm: |
sz = strlen(sql); |
input = page->name; |
|
break; |
|
case KEY_sec: |
|
input = page->sect; |
|
break; |
|
case KEY_arch: |
|
input = page->arch; |
|
if (input == NULL) |
|
input = "all\0"; |
|
break; |
|
default: |
|
input = NULL; |
|
break; |
|
} |
|
|
for (needop = 0; NULL != e; e = e->next) { |
if (input != NULL) { |
if (e->and) |
sz = lstlen(input, 3) + 1; |
sql_append(&sql, &sz, " AND ", 1); |
output = mandoc_malloc(sz); |
else if (needop) |
i = 0; |
sql_append(&sql, &sz, " OR ", 1); |
lstcat(output, &i, input, " # "); |
if (e->open) |
output[i++] = '\0'; |
sql_append(&sql, &sz, "(", e->open); |
assert(i == sz); |
sql_append(&sql, &sz, |
return output; |
TYPE_Nd & e->bits |
|
? (NULL == e->substr |
|
? "desc REGEXP ?" |
|
: "desc MATCH ?") |
|
: TYPE_Nm == e->bits |
|
? (NULL == e->substr |
|
? "pageid IN (SELECT pageid FROM names " |
|
"WHERE name REGEXP ?)" |
|
: e->equal |
|
? "name = ? " |
|
: "pageid IN (SELECT pageid FROM names " |
|
"WHERE name MATCH ?)") |
|
: (NULL == e->substr |
|
? "pageid IN (SELECT pageid FROM keys " |
|
"WHERE key REGEXP ? AND bits & ?)" |
|
: "pageid IN (SELECT pageid FROM keys " |
|
"WHERE key MATCH ? AND bits & ?)"), 1); |
|
if (e->close) |
|
sql_append(&sql, &sz, ")", e->close); |
|
needop = 1; |
|
} |
} |
|
|
return(sql); |
output = NULL; |
|
dbm_macro_bypage(im - 2, page->addr); |
|
while ((value = dbm_macro_next()) != NULL) { |
|
if (output == NULL) { |
|
oldoutput = ""; |
|
sep = ""; |
|
} else { |
|
oldoutput = output; |
|
sep = " # "; |
|
} |
|
mandoc_asprintf(&newoutput, "%s%s%s", oldoutput, sep, value); |
|
free(output); |
|
output = newoutput; |
|
} |
|
return output; |
} |
} |
|
|
/* |
/* |
Line 671 sql_statement(const struct expr *e) |
|
Line 544 sql_statement(const struct expr *e) |
|
* "(", "foo=bar", etc.). |
* "(", "foo=bar", etc.). |
*/ |
*/ |
static struct expr * |
static struct expr * |
exprcomp(const struct mansearch *search, int argc, char *argv[]) |
exprcomp(const struct mansearch *search, int argc, char *argv[], int *argi) |
{ |
{ |
uint64_t mask; |
struct expr *parent, *child; |
int i, toopen, logic, igncase, toclose; |
int needterm, nested; |
struct expr *first, *prev, *cur, *next; |
|
|
|
first = cur = NULL; |
if ((nested = *argi) == argc) |
logic = igncase = toopen = toclose = 0; |
return NULL; |
|
needterm = 1; |
for (i = 0; i < argc; i++) { |
parent = child = NULL; |
if (0 == strcmp("(", argv[i])) { |
while (*argi < argc) { |
if (igncase) |
if (strcmp(")", argv[*argi]) == 0) { |
goto fail; |
if (needterm) |
toopen++; |
warnx("missing term " |
toclose++; |
"before closing parenthesis"); |
|
needterm = 0; |
|
if (nested) |
|
break; |
|
warnx("ignoring unmatched right parenthesis"); |
|
++*argi; |
continue; |
continue; |
} else if (0 == strcmp(")", argv[i])) { |
} |
if (toopen || logic || igncase || NULL == cur) |
if (strcmp("-o", argv[*argi]) == 0) { |
goto fail; |
if (needterm) { |
cur->close++; |
if (*argi > 0) |
if (0 > --toclose) |
warnx("ignoring -o after %s", |
goto fail; |
argv[*argi - 1]); |
|
else |
|
warnx("ignoring initial -o"); |
|
} |
|
needterm = 1; |
|
++*argi; |
continue; |
continue; |
} else if (0 == strcmp("-a", argv[i])) { |
} |
if (toopen || logic || igncase || NULL == cur) |
needterm = 0; |
goto fail; |
if (child == NULL) { |
logic = 1; |
child = expr_and(search, argc, argv, argi); |
continue; |
continue; |
} else if (0 == strcmp("-o", argv[i])) { |
|
if (toopen || logic || igncase || NULL == cur) |
|
goto fail; |
|
logic = 2; |
|
continue; |
|
} else if (0 == strcmp("-i", argv[i])) { |
|
if (igncase) |
|
goto fail; |
|
igncase = 1; |
|
continue; |
|
} |
} |
next = exprterm(search, argv[i], !igncase); |
if (parent == NULL) { |
if (NULL == next) |
parent = mandoc_calloc(1, sizeof(*parent)); |
goto fail; |
parent->type = EXPR_OR; |
if (NULL == first) |
parent->next = NULL; |
first = next; |
parent->child = child; |
else |
} |
cur->next = next; |
child->next = expr_and(search, argc, argv, argi); |
prev = cur = next; |
child = child->next; |
|
} |
|
if (needterm && *argi) |
|
warnx("ignoring trailing %s", argv[*argi - 1]); |
|
return parent == NULL ? child : parent; |
|
} |
|
|
/* |
static struct expr * |
* Searching for descriptions must be split out |
expr_and(const struct mansearch *search, int argc, char *argv[], int *argi) |
* because they are stored in the mpages table, |
{ |
* not in the keys table. |
struct expr *parent, *child; |
*/ |
int needterm; |
|
|
for (mask = TYPE_Nm; mask <= TYPE_Nd; mask <<= 1) { |
needterm = 1; |
if (mask & cur->bits && ~mask & cur->bits) { |
parent = child = NULL; |
next = mandoc_calloc(1, |
while (*argi < argc) { |
sizeof(struct expr)); |
if (strcmp(")", argv[*argi]) == 0) { |
memcpy(next, cur, sizeof(struct expr)); |
if (needterm) |
prev->open = 1; |
warnx("missing term " |
cur->bits = mask; |
"before closing parenthesis"); |
cur->next = next; |
needterm = 0; |
cur = next; |
break; |
cur->bits &= ~mask; |
} |
|
if (strcmp("-o", argv[*argi]) == 0) |
|
break; |
|
if (strcmp("-a", argv[*argi]) == 0) { |
|
if (needterm) { |
|
if (*argi > 0) |
|
warnx("ignoring -a after %s", |
|
argv[*argi - 1]); |
|
else |
|
warnx("ignoring initial -a"); |
} |
} |
|
needterm = 1; |
|
++*argi; |
|
continue; |
} |
} |
prev->and = (1 == logic); |
if (needterm == 0) |
prev->open += toopen; |
break; |
if (cur != prev) |
if (child == NULL) { |
cur->close = 1; |
child = exprterm(search, argc, argv, argi); |
|
if (child != NULL) |
toopen = logic = igncase = 0; |
needterm = 0; |
|
continue; |
|
} |
|
needterm = 0; |
|
if (parent == NULL) { |
|
parent = mandoc_calloc(1, sizeof(*parent)); |
|
parent->type = EXPR_AND; |
|
parent->next = NULL; |
|
parent->child = child; |
|
} |
|
child->next = exprterm(search, argc, argv, argi); |
|
if (child->next != NULL) { |
|
child = child->next; |
|
needterm = 0; |
|
} |
} |
} |
if ( ! (toopen || logic || igncase || toclose)) |
if (needterm && *argi) |
return(first); |
warnx("ignoring trailing %s", argv[*argi - 1]); |
|
return parent == NULL ? child : parent; |
fail: |
|
if (NULL != first) |
|
exprfree(first); |
|
return(NULL); |
|
} |
} |
|
|
static struct expr * |
static struct expr * |
exprterm(const struct mansearch *search, char *buf, int cs) |
exprterm(const struct mansearch *search, int argc, char *argv[], int *argi) |
{ |
{ |
char errbuf[BUFSIZ]; |
char errbuf[BUFSIZ]; |
struct expr *e; |
struct expr *e; |
char *key, *val; |
char *key, *val; |
uint64_t iterbit; |
uint64_t iterbit; |
int i, irc; |
int cs, i, irc; |
|
|
if ('\0' == *buf) |
if (strcmp("(", argv[*argi]) == 0) { |
return(NULL); |
++*argi; |
|
e = exprcomp(search, argc, argv, argi); |
|
if (*argi < argc) { |
|
assert(strcmp(")", argv[*argi]) == 0); |
|
++*argi; |
|
} else |
|
warnx("unclosed parenthesis"); |
|
return e; |
|
} |
|
|
e = mandoc_calloc(1, sizeof(struct expr)); |
e = mandoc_calloc(1, sizeof(*e)); |
|
e->type = EXPR_TERM; |
|
e->bits = 0; |
|
e->next = NULL; |
|
e->child = NULL; |
|
|
if (search->argmode == ARG_NAME) { |
if (search->argmode == ARG_NAME) { |
e->bits = TYPE_Nm; |
e->bits = TYPE_Nm; |
e->substr = buf; |
e->match.type = DBM_EXACT; |
e->equal = 1; |
e->match.str = argv[(*argi)++]; |
return(e); |
return e; |
} |
} |
|
|
/* |
/* |
* Separate macro keys from search string. |
* Separate macro keys from search string. |
* If needed, request regular expression handling |
* If needed, request regular expression handling. |
* by setting e->substr to NULL. |
|
*/ |
*/ |
|
|
|
cs = 1; |
if (search->argmode == ARG_WORD) { |
if (search->argmode == ARG_WORD) { |
e->bits = TYPE_Nm; |
e->bits = TYPE_Nm; |
e->substr = NULL; |
e->match.type = DBM_REGEX; |
mandoc_asprintf(&val, "[[:<:]]%s[[:>:]]", buf); |
#if HAVE_REWB_BSD |
|
mandoc_asprintf(&val, "[[:<:]]%s[[:>:]]", argv[*argi]); |
|
#elif HAVE_REWB_SYSV |
|
mandoc_asprintf(&val, "\\<%s\\>", argv[*argi]); |
|
#else |
|
mandoc_asprintf(&val, |
|
"(^|[^a-zA-Z01-9_])%s([^a-zA-Z01-9_]|$)", argv[*argi]); |
|
#endif |
cs = 0; |
cs = 0; |
} else if ((val = strpbrk(buf, "=~")) == NULL) { |
} else if ((val = strpbrk(argv[*argi], "=~")) == NULL) { |
e->bits = TYPE_Nm | TYPE_Nd; |
e->bits = TYPE_Nm | TYPE_Nd; |
e->substr = buf; |
e->match.type = DBM_SUB; |
|
e->match.str = argv[*argi]; |
} else { |
} else { |
if (val == buf) |
if (val == argv[*argi]) |
e->bits = TYPE_Nm | TYPE_Nd; |
e->bits = TYPE_Nm | TYPE_Nd; |
if ('=' == *val) |
if (*val == '=') { |
e->substr = val + 1; |
e->match.type = DBM_SUB; |
|
e->match.str = val + 1; |
|
} else |
|
e->match.type = DBM_REGEX; |
*val++ = '\0'; |
*val++ = '\0'; |
if (NULL != strstr(buf, "arch")) |
if (strstr(argv[*argi], "arch") != NULL) |
cs = 0; |
cs = 0; |
} |
} |
|
|
/* Compile regular expressions. */ |
/* Compile regular expressions. */ |
|
|
if (NULL == e->substr) { |
if (e->match.type == DBM_REGEX) { |
irc = regcomp(&e->regexp, val, |
e->match.re = mandoc_malloc(sizeof(*e->match.re)); |
|
irc = regcomp(e->match.re, val, |
REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE)); |
REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE)); |
|
if (irc) { |
|
regerror(irc, e->match.re, errbuf, sizeof(errbuf)); |
|
warnx("regcomp /%s/: %s", val, errbuf); |
|
} |
if (search->argmode == ARG_WORD) |
if (search->argmode == ARG_WORD) |
free(val); |
free(val); |
if (irc) { |
if (irc) { |
regerror(irc, &e->regexp, errbuf, sizeof(errbuf)); |
free(e->match.re); |
fprintf(stderr, "regcomp: %s\n", errbuf); |
|
free(e); |
free(e); |
return(NULL); |
++*argi; |
|
return NULL; |
} |
} |
} |
} |
|
|
if (e->bits) |
if (e->bits) { |
return(e); |
++*argi; |
|
return e; |
|
} |
|
|
/* |
/* |
* Parse out all possible fields. |
* Parse out all possible fields. |
* If the field doesn't resolve, bail. |
* If the field doesn't resolve, bail. |
*/ |
*/ |
|
|
while (NULL != (key = strsep(&buf, ","))) { |
while (NULL != (key = strsep(&argv[*argi], ","))) { |
if ('\0' == *key) |
if ('\0' == *key) |
continue; |
continue; |
for (i = 0, iterbit = 1; |
for (i = 0, iterbit = 1; i < KEY_MAX; i++, iterbit <<= 1) { |
i < mansearch_keymax; |
if (0 == strcasecmp(key, mansearch_keynames[i])) { |
i++, iterbit <<= 1) { |
|
if (0 == strcasecmp(key, |
|
mansearch_keynames[i])) { |
|
e->bits |= iterbit; |
e->bits |= iterbit; |
break; |
break; |
} |
} |
} |
} |
if (i == mansearch_keymax) { |
if (i == KEY_MAX) { |
if (strcasecmp(key, "any")) { |
if (strcasecmp(key, "any")) |
free(e); |
warnx("treating unknown key " |
return(NULL); |
"\"%s\" as \"any\"", key); |
} |
|
e->bits |= ~0ULL; |
e->bits |= ~0ULL; |
} |
} |
} |
} |
|
|
return(e); |
++*argi; |
|
return e; |
} |
} |
|
|
static void |
static void |
exprfree(struct expr *p) |
exprfree(struct expr *e) |
{ |
{ |
struct expr *pp; |
if (e->next != NULL) |
|
exprfree(e->next); |
while (NULL != p) { |
if (e->child != NULL) |
pp = p->next; |
exprfree(e->child); |
free(p); |
free(e); |
p = pp; |
|
} |
|
} |
|
|
|
static void * |
|
hash_calloc(size_t nmemb, size_t sz, void *arg) |
|
{ |
|
|
|
return(mandoc_calloc(nmemb, sz)); |
|
} |
|
|
|
static void * |
|
hash_alloc(size_t sz, void *arg) |
|
{ |
|
|
|
return(mandoc_malloc(sz)); |
|
} |
|
|
|
static void |
|
hash_free(void *p, void *arg) |
|
{ |
|
|
|
free(p); |
|
} |
} |