-/* $Id: mandocdb.c,v 1.249 2017/05/05 15:17:32 schwarze Exp $ */
+/* $Id: mandocdb.c,v 1.262 2018/12/30 00:49:55 schwarze Exp $ */
/*
* Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011-2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011-2018 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2016 Ed Maste <emaste@freebsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
#include "config.h"
#include <sys/types.h>
+#include <sys/mman.h>
#include <sys/stat.h>
-#include <sys/wait.h>
#include <assert.h>
#include <ctype.h>
#include "roff.h"
#include "mdoc.h"
#include "man.h"
+#include "mandoc_parse.h"
#include "manconf.h"
#include "mansearch.h"
#include "dba_array.h"
const struct roff_node *);
static int parse_mdoc_head(struct mpage *, const struct roff_meta *,
const struct roff_node *);
+static int parse_mdoc_Fa(struct mpage *, const struct roff_meta *,
+ const struct roff_node *);
static int parse_mdoc_Fd(struct mpage *, const struct roff_meta *,
const struct roff_node *);
static void parse_mdoc_fname(struct mpage *, const struct roff_node *);
static struct ohash strings; /* table of all strings */
static uint64_t name_mask;
-static const struct mdoc_handler __mdocs[MDOC_MAX - MDOC_Dd] = {
+static const struct mdoc_handler mdoc_handlers[MDOC_MAX - MDOC_Dd] = {
{ NULL, 0, NODE_NOPRT }, /* Dd */
{ NULL, 0, NODE_NOPRT }, /* Dt */
{ NULL, 0, NODE_NOPRT }, /* Os */
{ NULL, TYPE_Er, 0 }, /* Er */
{ NULL, TYPE_Ev, 0 }, /* Ev */
{ NULL, 0, 0 }, /* Ex */
- { NULL, TYPE_Fa, 0 }, /* Fa */
+ { parse_mdoc_Fa, 0, 0 }, /* Fa */
{ parse_mdoc_Fd, 0, 0 }, /* Fd */
{ NULL, TYPE_Fl, 0 }, /* Fl */
{ parse_mdoc_Fn, 0, 0 }, /* Fn */
- { NULL, TYPE_Ft, 0 }, /* Ft */
+ { NULL, TYPE_Ft | TYPE_Vt, 0 }, /* Ft */
{ NULL, TYPE_Ic, 0 }, /* Ic */
{ NULL, TYPE_In, 0 }, /* In */
{ NULL, TYPE_Li, 0 }, /* Li */
{ NULL, 0, 0 }, /* %U */
{ NULL, 0, 0 }, /* Ta */
};
-static const struct mdoc_handler *const mdocs = __mdocs - MDOC_Dd;
int
int ch, i;
#if HAVE_PLEDGE
- if (pledge("stdio rpath wpath cpath fattr flock proc exec", NULL) == -1) {
+ if (pledge("stdio rpath wpath cpath", NULL) == -1) {
warn("pledge");
return (int)MANDOCLEVEL_SYSERR;
}
goto usage; \
} while (/*CONSTCOND*/0)
+ mparse_options = MPARSE_VALIDATE;
path_arg = NULL;
op = OP_DEFAULT;
exitcode = (int)MANDOCLEVEL_OK;
mchars_alloc();
- mp = mparse_alloc(mparse_options, MANDOCLEVEL_BADARG, NULL, NULL);
+ mp = mparse_alloc(mparse_options, MANDOC_OS_OTHER, NULL);
mandoc_ohash_init(&mpages, 6, offsetof(struct mpage, inodev));
mandoc_ohash_init(&mlinks, 6, offsetof(struct mlink, file));
* The existing database is usable. Process
* all files specified on the command-line.
*/
-#if HAVE_PLEDGE
- if (!nodb) {
- if (pledge("stdio rpath wpath cpath fattr flock", NULL) == -1) {
- warn("pledge");
- exitcode = (int)MANDOCLEVEL_SYSERR;
- goto out;
- }
- }
-#endif
use_all = 1;
for (i = 0; i < argc; i++)
filescan(argv[i]);
{
struct mpage *mpage, *mpage_dest;
struct mlink *mlink, *mlink_dest;
- struct roff_man *man;
- char *sodest;
+ struct roff_meta *meta;
char *cp;
int fd;
mandoc_ohash_init(&names, 4, offsetof(struct str, key));
mandoc_ohash_init(&strings, 6, offsetof(struct str, key));
mparse_reset(mp);
- man = NULL;
- sodest = NULL;
+ meta = NULL;
if ((fd = mparse_open(mp, mlink->file)) == -1) {
say(mlink->file, "&open");
mparse_readfd(mp, fd, mlink->file);
close(fd);
fd = -1;
- mparse_result(mp, &man, &sodest);
+ meta = mparse_result(mp);
}
- if (sodest != NULL) {
+ if (meta != NULL && meta->sodest != NULL) {
mlink_dest = ohash_find(&mlinks,
- ohash_qlookup(&mlinks, sodest));
+ ohash_qlookup(&mlinks, meta->sodest));
if (mlink_dest == NULL) {
- mandoc_asprintf(&cp, "%s.gz", sodest);
+ mandoc_asprintf(&cp, "%s.gz", meta->sodest);
mlink_dest = ohash_find(&mlinks,
ohash_qlookup(&mlinks, cp));
free(cp);
mpage->mlinks = NULL;
}
goto nextpage;
- } else if (man != NULL && man->macroset == MACROSET_MDOC) {
- mdoc_validate(man);
+ } else if (meta != NULL && meta->macroset == MACROSET_MDOC) {
mpage->form = FORM_SRC;
- mpage->sec = man->meta.msec;
+ mpage->sec = meta->msec;
mpage->sec = mandoc_strdup(
mpage->sec == NULL ? "" : mpage->sec);
- mpage->arch = man->meta.arch;
+ mpage->arch = meta->arch;
mpage->arch = mandoc_strdup(
mpage->arch == NULL ? "" : mpage->arch);
- mpage->title = mandoc_strdup(man->meta.title);
- } else if (man != NULL && man->macroset == MACROSET_MAN) {
- man_validate(man);
- if (*man->meta.msec != '\0' ||
- *man->meta.title != '\0') {
+ mpage->title = mandoc_strdup(meta->title);
+ } else if (meta != NULL && meta->macroset == MACROSET_MAN) {
+ if (*meta->msec != '\0' || *meta->title != '\0') {
mpage->form = FORM_SRC;
- mpage->sec = mandoc_strdup(man->meta.msec);
+ mpage->sec = mandoc_strdup(meta->msec);
mpage->arch = mandoc_strdup(mlink->arch);
- mpage->title = mandoc_strdup(man->meta.title);
+ mpage->title = mandoc_strdup(meta->title);
} else
- man = NULL;
+ meta = NULL;
}
assert(mpage->desc == NULL);
- if (man == NULL) {
+ if (meta == NULL) {
mpage->form = FORM_CAT;
mpage->sec = mandoc_strdup(mlink->dsec);
mpage->arch = mandoc_strdup(mlink->arch);
mpage->title = mandoc_strdup(mlink->name);
parse_cat(mpage, fd);
- } else if (man->macroset == MACROSET_MDOC)
- parse_mdoc(mpage, &man->meta, man->first);
+ } else if (meta->macroset == MACROSET_MDOC)
+ parse_mdoc(mpage, meta, meta->first);
else
- parse_man(mpage, &man->meta, man->first);
+ parse_man(mpage, meta, meta->first);
if (mpage->desc == NULL) {
mpage->desc = mandoc_strdup(mlink->name);
if (warnings)
plen -= 2;
}
- mpage->desc = mandoc_strdup(p);
+ /*
+ * Cut off excessive one-line descriptions.
+ * Bad pages are not worth better heuristics.
+ */
+
+ mpage->desc = mandoc_strndup(p, 150);
fclose(stream);
free(title);
}
while (' ' == *start)
start++;
- mpage->desc = mandoc_strdup(start);
+ /*
+ * Cut off excessive one-line descriptions.
+ * Bad pages are not worth better heuristics.
+ */
+
+ mpage->desc = mandoc_strndup(start, 150);
free(title);
return;
}
parse_mdoc(struct mpage *mpage, const struct roff_meta *meta,
const struct roff_node *n)
{
+ const struct mdoc_handler *handler;
for (n = n->child; n != NULL; n = n->next) {
- if (n->tok == TOKEN_NONE ||
- n->tok < ROFF_MAX ||
- n->flags & mdocs[n->tok].taboo)
+ if (n->tok == TOKEN_NONE || n->tok < ROFF_MAX)
continue;
assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+ handler = mdoc_handlers + (n->tok - MDOC_Dd);
+ if (n->flags & handler->taboo)
+ continue;
+
switch (n->type) {
case ROFFT_ELEM:
case ROFFT_BLOCK:
case ROFFT_HEAD:
case ROFFT_BODY:
case ROFFT_TAIL:
- if (mdocs[n->tok].fp != NULL &&
- (*mdocs[n->tok].fp)(mpage, meta, n) == 0)
+ if (handler->fp != NULL &&
+ (*handler->fp)(mpage, meta, n) == 0)
break;
- if (mdocs[n->tok].mask)
+ if (handler->mask)
putmdockey(mpage, n->child,
- mdocs[n->tok].mask, mdocs[n->tok].taboo);
+ handler->mask, handler->taboo);
break;
default:
continue;
}
}
+static int
+parse_mdoc_Fa(struct mpage *mpage, const struct roff_meta *meta,
+ const struct roff_node *n)
+{
+ uint64_t mask;
+
+ mask = TYPE_Fa;
+ if (n->sec == SEC_SYNOPSIS)
+ mask |= TYPE_Vt;
+
+ putmdockey(mpage, n->child, mask, 0);
+ return 0;
+}
+
static int
parse_mdoc_Fd(struct mpage *mpage, const struct roff_meta *meta,
const struct roff_node *n)
parse_mdoc_Fn(struct mpage *mpage, const struct roff_meta *meta,
const struct roff_node *n)
{
+ uint64_t mask;
if (n->child == NULL)
return 0;
parse_mdoc_fname(mpage, n->child);
- for (n = n->child->next; n != NULL; n = n->next)
- if (n->type == ROFFT_TEXT)
- putkey(mpage, n->string, TYPE_Fa);
+ n = n->child->next;
+ if (n != NULL && n->type == ROFFT_TEXT) {
+ mask = TYPE_Fa;
+ if (n->sec == SEC_SYNOPSIS)
+ mask |= TYPE_Vt;
+ putmdockey(mpage, n, mask, 0);
+ }
return 0;
}
static void
dbwrite(struct dba *dba)
{
- char tfn[32];
- int status;
- pid_t child;
+ struct stat sb1, sb2;
+ char tfn[33], *cp1, *cp2;
+ off_t i;
+ int fd1, fd2;
+
+ /*
+ * Do not write empty databases, and delete existing ones
+ * when makewhatis -u causes them to become empty.
+ */
+
+ dba_array_start(dba->pages);
+ if (dba_array_next(dba->pages) == NULL) {
+ if (unlink(MANDOC_DB) == -1 && errno != ENOENT)
+ say(MANDOC_DB, "&unlink");
+ return;
+ }
+
+ /*
+ * Build the database in a temporary file,
+ * then atomically move it into place.
+ */
if (dba_write(MANDOC_DB "~", dba) != -1) {
if (rename(MANDOC_DB "~", MANDOC_DB) == -1) {
return;
}
+ /*
+ * We lack write permission and cannot replace the database
+ * file, but let's at least check whether the data changed.
+ */
+
(void)strlcpy(tfn, "/tmp/mandocdb.XXXXXXXX", sizeof(tfn));
if (mkdtemp(tfn) == NULL) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "&%s", tfn);
return;
}
-
+ cp1 = cp2 = MAP_FAILED;
+ fd1 = fd2 = -1;
(void)strlcat(tfn, "/" MANDOC_DB, sizeof(tfn));
if (dba_write(tfn, dba) == -1) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
say(tfn, "&dba_write");
- goto out;
+ goto err;
}
-
- switch (child = fork()) {
- case -1:
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "&fork cmp");
- return;
- case 0:
- execlp("cmp", "cmp", "-s", tfn, MANDOC_DB, (char *)NULL);
- say("", "&exec cmp");
- exit(0);
- default:
- break;
+ if ((fd1 = open(MANDOC_DB, O_RDONLY, 0)) == -1) {
+ say(MANDOC_DB, "&open");
+ goto err;
}
- if (waitpid(child, &status, 0) == -1) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "&wait cmp");
- } else if (WIFSIGNALED(status)) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "cmp died from signal %d", WTERMSIG(status));
- } else if (WEXITSTATUS(status)) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say(MANDOC_DB,
- "Data changed, but cannot replace database");
+ if ((fd2 = open(tfn, O_RDONLY, 0)) == -1) {
+ say(tfn, "&open");
+ goto err;
+ }
+ if (fstat(fd1, &sb1) == -1) {
+ say(MANDOC_DB, "&fstat");
+ goto err;
+ }
+ if (fstat(fd2, &sb2) == -1) {
+ say(tfn, "&fstat");
+ goto err;
}
+ if (sb1.st_size != sb2.st_size)
+ goto err;
+ if ((cp1 = mmap(NULL, sb1.st_size, PROT_READ, MAP_PRIVATE,
+ fd1, 0)) == MAP_FAILED) {
+ say(MANDOC_DB, "&mmap");
+ goto err;
+ }
+ if ((cp2 = mmap(NULL, sb2.st_size, PROT_READ, MAP_PRIVATE,
+ fd2, 0)) == MAP_FAILED) {
+ say(tfn, "&mmap");
+ goto err;
+ }
+ for (i = 0; i < sb1.st_size; i++)
+ if (cp1[i] != cp2[i])
+ goto err;
+ goto out;
+
+err:
+ exitcode = (int)MANDOCLEVEL_SYSERR;
+ say(MANDOC_DB, "Data changed, but cannot replace database");
out:
+ if (cp1 != MAP_FAILED)
+ munmap(cp1, sb1.st_size);
+ if (cp2 != MAP_FAILED)
+ munmap(cp2, sb2.st_size);
+ if (fd1 != -1)
+ close(fd1);
+ if (fd2 != -1)
+ close(fd2);
+ unlink(tfn);
*strrchr(tfn, '/') = '\0';
- switch (child = fork()) {
- case -1:
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "&fork rm");
- return;
- case 0:
- execlp("rm", "rm", "-rf", tfn, (char *)NULL);
- say("", "&exec rm");
- exit((int)MANDOCLEVEL_SYSERR);
- default:
- break;
- }
- if (waitpid(child, &status, 0) == -1) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "&wait rm");
- } else if (WIFSIGNALED(status) || WEXITSTATUS(status)) {
- exitcode = (int)MANDOCLEVEL_SYSERR;
- say("", "%s: Cannot remove temporary directory", tfn);
- }
+ rmdir(tfn);
}
static int
git.ckatri.com / mandoc.git / blobdiff