X-Git-Url: https://git.cameronkatri.com/mandoc.git/blobdiff_plain/24d115716dc1ebda43f32d59379e15eca1a026c2..66f0529966c19d3a2d436cc41864b9aff362bb79:/main.c

diff --git a/main.c b/main.c
index 5f8e2680..eb056230 100644
--- a/main.c
+++ b/main.c
@@ -1,16 +1,16 @@
-/*	$Id: main.c,v 1.211 2015/01/01 13:20:38 schwarze Exp $ */
+/*	$Id: main.c,v 1.265 2016/04/14 20:55:48 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010, 2011, 2012, 2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010-2012, 2014-2016 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
@@ -19,23 +19,33 @@
 #include "config.h"
 
 #include <sys/types.h>
+#include <sys/param.h>	/* MACHINE */
+#include <sys/wait.h>
 
 #include <assert.h>
 #include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
 #include <errno.h>
 #include <fcntl.h>
+#include <glob.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 #include <unistd.h>
 
-#include "mandoc.h"
 #include "mandoc_aux.h"
-#include "main.h"
+#include "mandoc.h"
+#include "roff.h"
 #include "mdoc.h"
 #include "man.h"
-#include "manpath.h"
+#include "tag.h"
+#include "main.h"
+#include "manconf.h"
 #include "mansearch.h"
 
 #if !defined(__GNUC__) || (__GNUC__ < 2)
@@ -53,10 +63,6 @@ enum	outmode {
 	OUTMODE_ONE
 };
 
-typedef	void		(*out_mdoc)(void *, const struct mdoc *);
-typedef	void		(*out_man)(void *, const struct man *);
-typedef	void		(*out_free)(void *);
-
 enum	outt {
 	OUTT_ASCII = 0,	/* -Tascii */
 	OUTT_LOCALE,	/* -Tlocale */
@@ -71,17 +77,20 @@ enum	outt {
 
 struct	curparse {
 	struct mparse	 *mp;
-	struct mchars	 *mchars;	/* character table */
 	enum mandoclevel  wlevel;	/* ignore messages below this */
 	int		  wstop;	/* stop after a file with a warning */
 	enum outt	  outtype;	/* which output to use */
-	out_mdoc	  outmdoc;	/* mdoc output ptr */
-	out_man		  outman;	/* man output ptr */
-	out_free	  outfree;	/* free output ptr */
 	void		 *outdata;	/* data for output */
-	char		  outopts[BUFSIZ]; /* buf of output opts */
+	struct manoutput *outopts;	/* output options */
 };
 
+static	int		  fs_lookup(const struct manpaths *,
+				size_t ipath, const char *,
+				const char *, const char *,
+				struct manpage **, size_t *);
+static	void		  fs_search(const struct mansearch *,
+				const struct manpaths *, int, char**,
+				struct manpage **, size_t *);
 static	int		  koptions(int *, char *);
 #if HAVE_SQLITE3
 int			  mandocdb(int, char**);
@@ -89,64 +98,71 @@ int			  mandocdb(int, char**);
 static	int		  moptions(int *, char *);
 static	void		  mmsg(enum mandocerr, enum mandoclevel,
 				const char *, int, int, const char *);
-static	void		  parse(struct curparse *, int,
-				const char *, enum mandoclevel *);
-#if HAVE_SQLITE3
-static	enum mandoclevel  passthrough(const char *, int, int);
-#endif
-static	void		  spawn_pager(void);
+static	void		  parse(struct curparse *, int, const char *);
+static	void		  passthrough(const char *, int, int);
+static	pid_t		  spawn_pager(struct tag_files *);
 static	int		  toptions(struct curparse *, char *);
 static	void		  usage(enum argmode) __attribute__((noreturn));
-static	void		  version(void) __attribute__((noreturn));
 static	int		  woptions(struct curparse *, char *);
 
 static	const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
 static	char		  help_arg[] = "help";
 static	char		 *help_argv[] = {help_arg, NULL};
-static	const char	 *progname;
+static	enum mandoclevel  rc;
 
 
 int
 main(int argc, char *argv[])
 {
+	struct manconf	 conf;
 	struct curparse	 curp;
 	struct mansearch search;
-	struct manpaths	 paths;
+	struct tag_files *tag_files;
+	const char	*progname;
 	char		*auxpaths;
 	char		*defos;
 	unsigned char	*uc;
-#if HAVE_SQLITE3
 	struct manpage	*res, *resp;
 	char		*conf_file, *defpaths;
-	size_t		 isec, i, sz;
-	int		 prio, best_prio, synopsis_only;
-	char		 sec;
-#endif
-	enum mandoclevel rc;
+	const char	*sec;
+	size_t		 i, sz;
+	int		 prio, best_prio;
 	enum outmode	 outmode;
 	int		 fd;
 	int		 show_usage;
-	int		 use_pager;
 	int		 options;
+	int		 use_pager;
+	int		 status, signum;
 	int		 c;
+	pid_t		 pager_pid, tc_pgid, man_pgid, pid;
 
-	progname = strrchr(argv[0], '/');
-	if (progname == NULL)
+#if HAVE_PROGNAME
+	progname = getprogname();
+#else
+	if (argc < 1)
+		progname = mandoc_strdup("mandoc");
+	else if ((progname = strrchr(argv[0], '/')) == NULL)
 		progname = argv[0];
 	else
 		++progname;
+	setprogname(progname);
+#endif
 
 #if HAVE_SQLITE3
-	if (strcmp(progname, BINM_MAKEWHATIS) == 0)
-		return(mandocdb(argc, argv));
+	if (strncmp(progname, "mandocdb", 8) == 0 ||
+	    strcmp(progname, BINM_MAKEWHATIS) == 0)
+		return mandocdb(argc, argv);
+#endif
+
+#if HAVE_PLEDGE
+	if (pledge("stdio rpath tmppath tty proc exec flock", NULL) == -1)
+		err((int)MANDOCLEVEL_SYSERR, "pledge");
 #endif
 
 	/* Search options. */
 
-	memset(&paths, 0, sizeof(struct manpaths));
-#if HAVE_SQLITE3
+	memset(&conf, 0, sizeof(conf));
 	conf_file = defpaths = NULL;
-#endif
 	auxpaths = NULL;
 
 	memset(&search, 0, sizeof(struct mansearch));
@@ -167,15 +183,14 @@ main(int argc, char *argv[])
 
 	memset(&curp, 0, sizeof(struct curparse));
 	curp.outtype = OUTT_LOCALE;
-	curp.wlevel  = MANDOCLEVEL_FATAL;
+	curp.wlevel  = MANDOCLEVEL_BADARG;
+	curp.outopts = &conf.output;
 	options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
 	defos = NULL;
 
 	use_pager = 1;
+	tag_files = NULL;
 	show_usage = 0;
-#if HAVE_SQLITE3
-	synopsis_only = 0;
-#endif
 	outmode = OUTMODE_DEF;
 
 	while (-1 != (c = getopt(argc, argv,
@@ -185,9 +200,7 @@ main(int argc, char *argv[])
 			outmode = OUTMODE_ALL;
 			break;
 		case 'C':
-#if HAVE_SQLITE3
 			conf_file = optarg;
-#endif
 			break;
 		case 'c':
 			use_pager = 0;
@@ -196,25 +209,18 @@ main(int argc, char *argv[])
 			search.argmode = ARG_WORD;
 			break;
 		case 'h':
-			(void)strlcat(curp.outopts, "synopsis,", BUFSIZ);
-#if HAVE_SQLITE3
-			synopsis_only = 1;
-#endif
+			conf.output.synopsisonly = 1;
 			use_pager = 0;
 			outmode = OUTMODE_ALL;
 			break;
 		case 'I':
 			if (strncmp(optarg, "os=", 3)) {
-				fprintf(stderr,
-				    "%s: -I %s: Bad argument\n",
-				    progname, optarg);
-				return((int)MANDOCLEVEL_BADARG);
+				warnx("-I %s: Bad argument", optarg);
+				return (int)MANDOCLEVEL_BADARG;
 			}
 			if (defos) {
-				fprintf(stderr,
-				    "%s: -I %s: Duplicate argument\n",
-				    progname, optarg);
-				return((int)MANDOCLEVEL_BADARG);
+				warnx("-I %s: Duplicate argument", optarg);
+				return (int)MANDOCLEVEL_BADARG;
 			}
 			defos = mandoc_strdup(optarg + 3);
 			break;
@@ -223,7 +229,7 @@ main(int argc, char *argv[])
 			break;
 		case 'K':
 			if ( ! koptions(&options, optarg))
-				return((int)MANDOCLEVEL_BADARG);
+				return (int)MANDOCLEVEL_BADARG;
 			break;
 		case 'k':
 			search.argmode = ARG_EXPR;
@@ -233,17 +239,16 @@ main(int argc, char *argv[])
 			outmode = OUTMODE_ALL;
 			break;
 		case 'M':
-#if HAVE_SQLITE3
 			defpaths = optarg;
-#endif
 			break;
 		case 'm':
 			auxpaths = optarg;
 			break;
 		case 'O':
 			search.outkey = optarg;
-			(void)strlcat(curp.outopts, optarg, BUFSIZ);
-			(void)strlcat(curp.outopts, ",", BUFSIZ);
+			while (optarg != NULL)
+				manconf_output(&conf.output,
+				    strsep(&optarg, ","));
 			break;
 		case 'S':
 			search.arch = optarg;
@@ -253,18 +258,15 @@ main(int argc, char *argv[])
 			break;
 		case 'T':
 			if ( ! toptions(&curp, optarg))
-				return((int)MANDOCLEVEL_BADARG);
+				return (int)MANDOCLEVEL_BADARG;
 			break;
 		case 'W':
 			if ( ! woptions(&curp, optarg))
-				return((int)MANDOCLEVEL_BADARG);
+				return (int)MANDOCLEVEL_BADARG;
 			break;
 		case 'w':
 			outmode = OUTMODE_FLN;
 			break;
-		case 'V':
-			version();
-			/* NOTREACHED */
 		default:
 			show_usage = 1;
 			break;
@@ -291,13 +293,24 @@ main(int argc, char *argv[])
 		}
 	}
 
+	if (outmode == OUTMODE_FLN ||
+	    outmode == OUTMODE_LST ||
+	    !isatty(STDOUT_FILENO))
+		use_pager = 0;
+
+#if HAVE_PLEDGE
+	if (!use_pager)
+		if (pledge("stdio rpath flock", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+#endif
+
 	/* Parse arguments. */
 
-	argc -= optind;
-	argv += optind;
-#if HAVE_SQLITE3
+	if (argc > 0) {
+		argc -= optind;
+		argv += optind;
+	}
 	resp = NULL;
-#endif
 
 	/*
 	 * Quirks for help(1)
@@ -311,14 +324,20 @@ main(int argc, char *argv[])
 				argc = 1;
 			}
 		} else if (argc > 1 &&
-		    ((uc = argv[0]) != NULL) &&
+		    ((uc = (unsigned char *)argv[0]) != NULL) &&
 		    ((isdigit(uc[0]) && (uc[1] == '\0' ||
 		      (isalpha(uc[1]) && uc[2] == '\0'))) ||
 		     (uc[0] == 'n' && uc[1] == '\0'))) {
-			search.sec = uc;
+			search.sec = (char *)uc;
 			argv++;
 			argc--;
 		}
+		if (search.arch == NULL)
+			search.arch = getenv("MACHINE");
+#ifdef MACHINE
+		if (search.arch == NULL)
+			search.arch = MACHINE;
+#endif
 	}
 
 	rc = MANDOCLEVEL_OK;
@@ -326,7 +345,6 @@ main(int argc, char *argv[])
 	/* man(1), whatis(1), apropos(1) */
 
 	if (search.argmode != ARG_FILE) {
-#if HAVE_SQLITE3
 		if (argc == 0)
 			usage(search.argmode);
 
@@ -336,16 +354,30 @@ main(int argc, char *argv[])
 
 		/* Access the mandoc database. */
 
-		manpath_parse(&paths, conf_file, defpaths, auxpaths);
+		manconf_parse(&conf, conf_file, defpaths, auxpaths);
+#if HAVE_SQLITE3
 		mansearch_setup(1);
-		if( ! mansearch(&search, &paths, argc, argv, &res, &sz))
+		if ( ! mansearch(&search, &conf.manpath,
+		    argc, argv, &res, &sz))
 			usage(search.argmode);
-		resp = res;
+#else
+		if (search.argmode != ARG_NAME) {
+			fputs("mandoc: database support not compiled in\n",
+			    stderr);
+			return (int)MANDOCLEVEL_BADARG;
+		}
+		sz = 0;
+#endif
 
 		if (sz == 0) {
 			if (search.argmode == ARG_NAME)
-				fprintf(stderr, "%s: No entry for %s "
-				    "in the manual.\n", progname, argv[0]);
+				fs_search(&search, &conf.manpath,
+				    argc, argv, &res, &sz);
+			else
+				warnx("nothing appropriate");
+		}
+
+		if (sz == 0) {
 			rc = MANDOCLEVEL_BADARG;
 			goto out;
 		}
@@ -358,12 +390,13 @@ main(int argc, char *argv[])
 
 		if (outmode == OUTMODE_ONE) {
 			argc = 1;
-			best_prio = 10;
+			best_prio = 20;
 		} else if (outmode == OUTMODE_ALL)
 			argc = (int)sz;
 
 		/* Iterate all matching manuals. */
 
+		resp = res;
 		for (i = 0; i < sz; i++) {
 			if (outmode == OUTMODE_FLN)
 				puts(res[i].file);
@@ -373,11 +406,13 @@ main(int argc, char *argv[])
 				    res[i].output);
 			else if (outmode == OUTMODE_ONE) {
 				/* Search for the best section. */
-				isec = strcspn(res[i].file, "123456789");
-				sec = res[i].file[isec];
-				if ('\0' == sec)
+				sec = res[i].file;
+				sec += strcspn(sec, "123456789");
+				if (sec[0] == '\0')
 					continue;
-				prio = sec_prios[sec - '1'];
+				prio = sec_prios[sec[0] - '1'];
+				if (sec[1] != '/')
+					prio += 10;
 				if (prio >= best_prio)
 					continue;
 				best_prio = prio;
@@ -393,24 +428,25 @@ main(int argc, char *argv[])
 
 		if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
 			goto out;
-#else
-		fputs("mandoc: database support not compiled in\n",
-		    stderr);
-		return((int)MANDOCLEVEL_BADARG);
-#endif
 	}
 
 	/* mandoc(1) */
 
-	if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths))
-		return((int)MANDOCLEVEL_BADARG);
+#if HAVE_PLEDGE
+	if (use_pager) {
+		if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+	} else {
+		if (pledge("stdio rpath", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+	}
+#endif
 
-	if (use_pager && isatty(STDOUT_FILENO))
-		spawn_pager();
+	if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths))
+		return (int)MANDOCLEVEL_BADARG;
 
-	curp.mchars = mchars_alloc();
-	curp.mp = mparse_alloc(options, curp.wlevel, mmsg,
-	    curp.mchars, defos);
+	mchars_alloc();
+	curp.mp = mparse_alloc(options, curp.wlevel, mmsg, defos);
 
 	/*
 	 * Conditionally start up the lookaside buffer before parsing.
@@ -418,66 +454,136 @@ main(int argc, char *argv[])
 	if (OUTT_MAN == curp.outtype)
 		mparse_keep(curp.mp);
 
-	if (argc == 0)
-		parse(&curp, STDIN_FILENO, "<stdin>", &rc);
+	if (argc < 1) {
+		if (use_pager)
+			tag_files = tag_init();
+		parse(&curp, STDIN_FILENO, "<stdin>");
+	}
 
-	while (argc) {
-#if HAVE_SQLITE3
-		if (resp != NULL) {
-			rc = mparse_open(curp.mp, &fd, resp->file);
-			if (fd == -1)
-				/* nothing */;
+	while (argc > 0) {
+		fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
+		if (fd != -1) {
+			if (use_pager) {
+				tag_files = tag_init();
+				use_pager = 0;
+			}
+
+			if (resp == NULL)
+				parse(&curp, fd, *argv);
 			else if (resp->form & FORM_SRC) {
 				/* For .so only; ignore failure. */
-				chdir(paths.paths[resp->ipath]);
-				parse(&curp, fd, resp->file, &rc);
+				chdir(conf.manpath.paths[resp->ipath]);
+				parse(&curp, fd, resp->file);
 			} else
-				rc = passthrough(resp->file, fd,
-				    synopsis_only);
-			resp++;
-		} else
-#endif
-		{
-			rc = mparse_open(curp.mp, &fd, *argv++);
-			if (fd != -1)
-				parse(&curp, fd, argv[-1], &rc);
-		}
+				passthrough(resp->file, fd,
+				    conf.output.synopsisonly);
 
-		if (mparse_wait(curp.mp) != MANDOCLEVEL_OK)
-			rc = MANDOCLEVEL_SYSERR;
+			if (argc > 1 && curp.outtype <= OUTT_UTF8)
+				ascii_sepline(curp.outdata);
+		} else if (rc < MANDOCLEVEL_ERROR)
+			rc = MANDOCLEVEL_ERROR;
 
 		if (MANDOCLEVEL_OK != rc && curp.wstop)
 			break;
 
-		if (--argc && curp.outtype <= OUTT_UTF8)
-			ascii_sepline(curp.outdata);
+		if (resp != NULL)
+			resp++;
+		else
+			argv++;
+		if (--argc)
+			mparse_reset(curp.mp);
 	}
 
-	if (curp.outfree)
-		(*curp.outfree)(curp.outdata);
+	if (curp.outdata != NULL) {
+		switch (curp.outtype) {
+		case OUTT_HTML:
+			html_free(curp.outdata);
+			break;
+		case OUTT_UTF8:
+		case OUTT_LOCALE:
+		case OUTT_ASCII:
+			ascii_free(curp.outdata);
+			break;
+		case OUTT_PDF:
+		case OUTT_PS:
+			pspdf_free(curp.outdata);
+			break;
+		default:
+			break;
+		}
+	}
 	mparse_free(curp.mp);
-	mchars_free(curp.mchars);
+	mchars_free();
 
-#if HAVE_SQLITE3
 out:
 	if (search.argmode != ARG_FILE) {
-		manpath_free(&paths);
+		manconf_free(&conf);
+#if HAVE_SQLITE3
 		mansearch_free(res, sz);
 		mansearch_setup(0);
-	}
 #endif
+	}
 
 	free(defos);
 
-	return((int)rc);
-}
+	/*
+	 * When using a pager, finish writing both temporary files,
+	 * fork it, wait for the user to close it, and clean up.
+	 */
 
-static void
-version(void)
-{
+	if (tag_files != NULL) {
+		fclose(stdout);
+		tag_write();
+		man_pgid = getpgid(0);
+		tag_files->tcpgid = man_pgid == getpid() ?
+		    getpgid(getppid()) : man_pgid;
+		pager_pid = 0;
+		signum = SIGSTOP;
+		for (;;) {
+
+			/* Stop here until moved to the foreground. */
+
+			tc_pgid = tcgetpgrp(STDIN_FILENO);
+			if (tc_pgid != man_pgid) {
+				if (tc_pgid == pager_pid) {
+					(void)tcsetpgrp(STDIN_FILENO,
+					    man_pgid);
+					if (signum == SIGTTIN)
+						continue;
+				} else
+					tag_files->tcpgid = tc_pgid;
+				kill(0, signum);
+				continue;
+			}
+
+			/* Once in the foreground, activate the pager. */
+
+			if (pager_pid) {
+				(void)tcsetpgrp(STDIN_FILENO, pager_pid);
+				kill(pager_pid, SIGCONT);
+			} else
+				pager_pid = spawn_pager(tag_files);
+
+			/* Wait for the pager to stop or exit. */
+
+			while ((pid = waitpid(pager_pid, &status,
+			    WUNTRACED)) == -1 && errno == EINTR)
+				continue;
+
+			if (pid == -1) {
+				warn("wait");
+				rc = MANDOCLEVEL_SYSERR;
+				break;
+			}
+			if (!WIFSTOPPED(status))
+				break;
+
+			signum = WSTOPSIG(status);
+		}
+		tag_unlink();
+	}
 
-	printf("mandoc %s\n", VERSION);
-	exit((int)MANDOCLEVEL_OK);
+	return (int)rc;
 }
 
 static void
@@ -486,24 +592,24 @@ usage(enum argmode argmode)
 
 	switch (argmode) {
 	case ARG_FILE:
-		fputs("usage: mandoc [-acfhklV] [-Ios=name] "
-		    "[-Kencoding] [-mformat] [-Ooption]\n"
-		    "\t      [-Toutput] [-Wlevel] [file ...]\n", stderr);
+		fputs("usage: mandoc [-acfhkl] [-I os=name] "
+		    "[-K encoding] [-mformat] [-O option]\n"
+		    "\t      [-T output] [-W level] [file ...]\n", stderr);
 		break;
 	case ARG_NAME:
-		fputs("usage: man [-acfhklVw] [-C file] [-I os=name] "
+		fputs("usage: man [-acfhklw] [-C file] [-I os=name] "
 		    "[-K encoding] [-M path] [-m path]\n"
 		    "\t   [-O option=value] [-S subsection] [-s section] "
 		    "[-T output] [-W level]\n"
 		    "\t   [section] name ...\n", stderr);
 		break;
 	case ARG_WORD:
-		fputs("usage: whatis [-acfhklVw] [-C file] "
+		fputs("usage: whatis [-acfhklw] [-C file] "
 		    "[-M path] [-m path] [-O outkey] [-S arch]\n"
 		    "\t      [-s section] name ...\n", stderr);
 		break;
 	case ARG_EXPR:
-		fputs("usage: apropos [-acfhklVw] [-C file] "
+		fputs("usage: apropos [-acfhklw] [-C file] "
 		    "[-M path] [-m path] [-O outkey] [-S arch]\n"
 		    "\t       [-s section] expression ...\n", stderr);
 		break;
@@ -511,121 +617,210 @@ usage(enum argmode argmode)
 	exit((int)MANDOCLEVEL_BADARG);
 }
 
+static int
+fs_lookup(const struct manpaths *paths, size_t ipath,
+	const char *sec, const char *arch, const char *name,
+	struct manpage **res, size_t *ressz)
+{
+	glob_t		 globinfo;
+	struct manpage	*page;
+	char		*file;
+	int		 form, globres;
+
+	form = FORM_SRC;
+	mandoc_asprintf(&file, "%s/man%s/%s.%s",
+	    paths->paths[ipath], sec, name, sec);
+	if (access(file, R_OK) != -1)
+		goto found;
+	free(file);
+
+	mandoc_asprintf(&file, "%s/cat%s/%s.0",
+	    paths->paths[ipath], sec, name);
+	if (access(file, R_OK) != -1) {
+		form = FORM_CAT;
+		goto found;
+	}
+	free(file);
+
+	if (arch != NULL) {
+		mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
+		    paths->paths[ipath], sec, arch, name, sec);
+		if (access(file, R_OK) != -1)
+			goto found;
+		free(file);
+	}
+
+	mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
+	    paths->paths[ipath], sec, name);
+	globres = glob(file, 0, NULL, &globinfo);
+	if (globres != 0 && globres != GLOB_NOMATCH)
+		warn("%s: glob", file);
+	free(file);
+	if (globres == 0)
+		file = mandoc_strdup(*globinfo.gl_pathv);
+	globfree(&globinfo);
+	if (globres != 0)
+		return 0;
+
+found:
+#if HAVE_SQLITE3
+	warnx("outdated mandoc.db lacks %s(%s) entry, run makewhatis %s",
+	    name, sec, paths->paths[ipath]);
+#endif
+	*res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
+	page = *res + (*ressz - 1);
+	page->file = file;
+	page->names = NULL;
+	page->output = NULL;
+	page->ipath = ipath;
+	page->bits = NAME_FILE & NAME_MASK;
+	page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
+	page->form = form;
+	return 1;
+}
+
 static void
-parse(struct curparse *curp, int fd, const char *file,
-	enum mandoclevel *level)
+fs_search(const struct mansearch *cfg, const struct manpaths *paths,
+	int argc, char **argv, struct manpage **res, size_t *ressz)
 {
-	enum mandoclevel  rc;
-	struct mdoc	 *mdoc;
-	struct man	 *man;
+	const char *const sections[] =
+	    {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
+	const size_t nsec = sizeof(sections)/sizeof(sections[0]);
 
-	/* Begin by parsing the file itself. */
+	size_t		 ipath, isec, lastsz;
 
-	assert(file);
-	assert(fd >= -1);
+	assert(cfg->argmode == ARG_NAME);
+
+	*res = NULL;
+	*ressz = lastsz = 0;
+	while (argc) {
+		for (ipath = 0; ipath < paths->sz; ipath++) {
+			if (cfg->sec != NULL) {
+				if (fs_lookup(paths, ipath, cfg->sec,
+				    cfg->arch, *argv, res, ressz) &&
+				    cfg->firstmatch)
+					return;
+			} else for (isec = 0; isec < nsec; isec++)
+				if (fs_lookup(paths, ipath, sections[isec],
+				    cfg->arch, *argv, res, ressz) &&
+				    cfg->firstmatch)
+					return;
+		}
+		if (*ressz == lastsz)
+			warnx("No entry for %s in the manual.", *argv);
+		lastsz = *ressz;
+		argv++;
+		argc--;
+	}
+}
+
+static void
+parse(struct curparse *curp, int fd, const char *file)
+{
+	enum mandoclevel  rctmp;
+	struct roff_man	 *man;
 
-	rc = mparse_readfd(curp->mp, fd, file);
+	/* Begin by parsing the file itself. */
 
-	/* Stop immediately if the parse has failed. */
+	assert(file);
+	assert(fd >= 0);
 
-	if (MANDOCLEVEL_FATAL <= rc)
-		goto cleanup;
+	rctmp = mparse_readfd(curp->mp, fd, file);
+	if (fd != STDIN_FILENO)
+		close(fd);
+	if (rc < rctmp)
+		rc = rctmp;
 
 	/*
 	 * With -Wstop and warnings or errors of at least the requested
 	 * level, do not produce output.
 	 */
 
-	if (MANDOCLEVEL_OK != rc && curp->wstop)
-		goto cleanup;
+	if (rctmp != MANDOCLEVEL_OK && curp->wstop)
+		return;
 
 	/* If unset, allocate output dev now (if applicable). */
 
-	if ( ! (curp->outman && curp->outmdoc)) {
+	if (curp->outdata == NULL) {
 		switch (curp->outtype) {
 		case OUTT_HTML:
-			curp->outdata = html_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = html_free;
+			curp->outdata = html_alloc(curp->outopts);
 			break;
 		case OUTT_UTF8:
-			curp->outdata = utf8_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = ascii_free;
+			curp->outdata = utf8_alloc(curp->outopts);
 			break;
 		case OUTT_LOCALE:
-			curp->outdata = locale_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = ascii_free;
+			curp->outdata = locale_alloc(curp->outopts);
 			break;
 		case OUTT_ASCII:
-			curp->outdata = ascii_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = ascii_free;
+			curp->outdata = ascii_alloc(curp->outopts);
 			break;
 		case OUTT_PDF:
-			curp->outdata = pdf_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = pspdf_free;
+			curp->outdata = pdf_alloc(curp->outopts);
 			break;
 		case OUTT_PS:
-			curp->outdata = ps_alloc(curp->mchars,
-			    curp->outopts);
-			curp->outfree = pspdf_free;
+			curp->outdata = ps_alloc(curp->outopts);
 			break;
 		default:
 			break;
 		}
+	}
+
+	mparse_result(curp->mp, &man, NULL);
 
+	/* Execute the out device, if it exists. */
+
+	if (man == NULL)
+		return;
+	if (man->macroset == MACROSET_MDOC) {
+		mdoc_validate(man);
 		switch (curp->outtype) {
 		case OUTT_HTML:
-			curp->outman = html_man;
-			curp->outmdoc = html_mdoc;
+			html_mdoc(curp->outdata, man);
 			break;
 		case OUTT_TREE:
-			curp->outman = tree_man;
-			curp->outmdoc = tree_mdoc;
+			tree_mdoc(curp->outdata, man);
 			break;
 		case OUTT_MAN:
-			curp->outmdoc = man_mdoc;
-			curp->outman = man_man;
+			man_mdoc(curp->outdata, man);
 			break;
 		case OUTT_PDF:
-			/* FALLTHROUGH */
 		case OUTT_ASCII:
-			/* FALLTHROUGH */
 		case OUTT_UTF8:
-			/* FALLTHROUGH */
 		case OUTT_LOCALE:
-			/* FALLTHROUGH */
 		case OUTT_PS:
-			curp->outman = terminal_man;
-			curp->outmdoc = terminal_mdoc;
+			terminal_mdoc(curp->outdata, man);
+			break;
+		default:
+			break;
+		}
+	}
+	if (man->macroset == MACROSET_MAN) {
+		man_validate(man);
+		switch (curp->outtype) {
+		case OUTT_HTML:
+			html_man(curp->outdata, man);
+			break;
+		case OUTT_TREE:
+			tree_man(curp->outdata, man);
+			break;
+		case OUTT_MAN:
+			man_man(curp->outdata, man);
+			break;
+		case OUTT_PDF:
+		case OUTT_ASCII:
+		case OUTT_UTF8:
+		case OUTT_LOCALE:
+		case OUTT_PS:
+			terminal_man(curp->outdata, man);
 			break;
 		default:
 			break;
 		}
 	}
-
-	mparse_result(curp->mp, &mdoc, &man, NULL);
-
-	/* Execute the out device, if it exists. */
-
-	if (man && curp->outman)
-		(*curp->outman)(curp->outdata, man);
-	if (mdoc && curp->outmdoc)
-		(*curp->outmdoc)(curp->outdata, mdoc);
-
- cleanup:
-
-	mparse_reset(curp->mp);
-
-	if (*level < rc)
-		*level = rc;
 }
 
-#if HAVE_SQLITE3
-static enum mandoclevel
+static void
 passthrough(const char *file, int fd, int synopsis_only)
 {
 	const char	 synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
@@ -633,12 +828,12 @@ passthrough(const char *file, int fd, int synopsis_only)
 
 	FILE		*stream;
 	const char	*syscall;
-	char		*line;
-	size_t		 len, off;
-	ssize_t		 nw;
+	char		*line, *cp;
+	size_t		 linesz;
 	int		 print;
 
-	fflush(stdout);
+	line = NULL;
+	linesz = 0;
 
 	if ((stream = fdopen(fd, "r")) == NULL) {
 		close(fd);
@@ -647,50 +842,45 @@ passthrough(const char *file, int fd, int synopsis_only)
 	}
 
 	print = 0;
-	while ((line = fgetln(stream, &len)) != NULL) {
+	while (getline(&line, &linesz, stream) != -1) {
+		cp = line;
 		if (synopsis_only) {
 			if (print) {
-				if ( ! isspace((unsigned char)*line))
+				if ( ! isspace((unsigned char)*cp))
 					goto done;
-				while (len &&
-				    isspace((unsigned char)*line)) {
-					line++;
-					len--;
-				}
+				while (isspace((unsigned char)*cp))
+					cp++;
 			} else {
-				if ((len == sizeof(synb) &&
-				     ! strncmp(line, synb, len - 1)) ||
-				    (len == sizeof(synr) &&
-				     ! strncmp(line, synr, len - 1)))
+				if (strcmp(cp, synb) == 0 ||
+				    strcmp(cp, synr) == 0)
 					print = 1;
 				continue;
 			}
 		}
-		for (off = 0; off < len; off += nw)
-			if ((nw = write(STDOUT_FILENO, line + off,
-			    len - off)) == -1 || nw == 0) {
-				fclose(stream);
-				syscall = "write";
-				goto fail;
-			}
+		if (fputs(cp, stdout)) {
+			fclose(stream);
+			syscall = "fputs";
+			goto fail;
+		}
 	}
 
 	if (ferror(stream)) {
 		fclose(stream);
-		syscall = "fgetln";
+		syscall = "getline";
 		goto fail;
 	}
 
 done:
+	free(line);
 	fclose(stream);
-	return(MANDOCLEVEL_OK);
+	return;
 
 fail:
-	fprintf(stderr, "%s: %s: SYSERR: %s: %s",
-	    progname, file, syscall, strerror(errno));
-	return(MANDOCLEVEL_SYSERR);
+	free(line);
+	warn("%s: SYSERR: %s", file, syscall);
+	if (rc < MANDOCLEVEL_SYSERR)
+		rc = MANDOCLEVEL_SYSERR;
 }
-#endif
 
 static int
 koptions(int *options, char *arg)
@@ -705,11 +895,10 @@ koptions(int *options, char *arg)
 	} else if ( ! strcmp(arg, "us-ascii")) {
 		*options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
 	} else {
-		fprintf(stderr, "%s: -K %s: Bad argument\n",
-		    progname, arg);
-		return(0);
+		warnx("-K %s: Bad argument", arg);
+		return 0;
 	}
-	return(1);
+	return 1;
 }
 
 static int
@@ -725,12 +914,11 @@ moptions(int *options, char *arg)
 	else if (0 == strcmp(arg, "an"))
 		*options |= MPARSE_MAN;
 	else {
-		fprintf(stderr, "%s: -m %s: Bad argument\n",
-		    progname, arg);
-		return(0);
+		warnx("-m %s: Bad argument", arg);
+		return 0;
 	}
 
-	return(1);
+	return 1;
 }
 
 static int
@@ -759,26 +947,26 @@ toptions(struct curparse *curp, char *arg)
 	else if (0 == strcmp(arg, "pdf"))
 		curp->outtype = OUTT_PDF;
 	else {
-		fprintf(stderr, "%s: -T %s: Bad argument\n",
-		    progname, arg);
-		return(0);
+		warnx("-T %s: Bad argument", arg);
+		return 0;
 	}
 
-	return(1);
+	return 1;
 }
 
 static int
 woptions(struct curparse *curp, char *arg)
 {
 	char		*v, *o;
-	const char	*toks[6];
+	const char	*toks[7];
 
 	toks[0] = "stop";
 	toks[1] = "all";
 	toks[2] = "warning";
 	toks[3] = "error";
-	toks[4] = "fatal";
-	toks[5] = NULL;
+	toks[4] = "unsupp";
+	toks[5] = "fatal";
+	toks[6] = NULL;
 
 	while (*arg) {
 		o = arg;
@@ -787,7 +975,6 @@ woptions(struct curparse *curp, char *arg)
 			curp->wstop = 1;
 			break;
 		case 1:
-			/* FALLTHROUGH */
 		case 2:
 			curp->wlevel = MANDOCLEVEL_WARNING;
 			break;
@@ -795,16 +982,18 @@ woptions(struct curparse *curp, char *arg)
 			curp->wlevel = MANDOCLEVEL_ERROR;
 			break;
 		case 4:
-			curp->wlevel = MANDOCLEVEL_FATAL;
+			curp->wlevel = MANDOCLEVEL_UNSUPP;
+			break;
+		case 5:
+			curp->wlevel = MANDOCLEVEL_BADARG;
 			break;
 		default:
-			fprintf(stderr, "%s: -W %s: Bad argument\n",
-			    progname, o);
-			return(0);
+			warnx("-W %s: Bad argument", o);
+			return 0;
 		}
 	}
 
-	return(1);
+	return 1;
 }
 
 static void
@@ -813,7 +1002,7 @@ mmsg(enum mandocerr t, enum mandoclevel lvl,
 {
 	const char	*mparse_msg;
 
-	fprintf(stderr, "%s: %s:", progname, file);
+	fprintf(stderr, "%s: %s:", getprogname(), file);
 
 	if (line)
 		fprintf(stderr, "%d:%d:", line, col + 1);
@@ -829,53 +1018,23 @@ mmsg(enum mandocerr t, enum mandoclevel lvl,
 	fputc('\n', stderr);
 }
 
-static void
-spawn_pager(void)
+static pid_t
+spawn_pager(struct tag_files *tag_files)
 {
+	const struct timespec timeout = { 0, 100000000 };  /* 0.1s */
 #define MAX_PAGER_ARGS 16
 	char		*argv[MAX_PAGER_ARGS];
 	const char	*pager;
 	char		*cp;
-	int		 fildes[2];
+	size_t		 cmdlen;
 	int		 argc;
-
-	if (pipe(fildes) == -1) {
-		fprintf(stderr, "%s: pipe: %s\n",
-		    progname, strerror(errno));
-		return;
-	}
-
-	switch (fork()) {
-	case -1:
-		fprintf(stderr, "%s: fork: %s\n",
-		    progname, strerror(errno));
-		exit((int)MANDOCLEVEL_SYSERR);
-	case 0:
-		close(fildes[0]);
-		if (dup2(fildes[1], STDOUT_FILENO) == -1) {
-			fprintf(stderr, "%s: dup output: %s\n",
-			    progname, strerror(errno));
-			exit((int)MANDOCLEVEL_SYSERR);
-		}
-		return;
-	default:
-		break;
-	}
-
-	/* The original process becomes the pager. */
-
-	close(fildes[1]);
-	if (dup2(fildes[0], STDIN_FILENO) == -1) {
-		fprintf(stderr, "%s: dup input: %s\n",
-		    progname, strerror(errno));
-		exit((int)MANDOCLEVEL_SYSERR);
-	}
+	pid_t		 pager_pid;
 
 	pager = getenv("MANPAGER");
 	if (pager == NULL || *pager == '\0')
 		pager = getenv("PAGER");
 	if (pager == NULL || *pager == '\0')
-		pager = "/usr/bin/more -s";
+		pager = "more -s";
 	cp = mandoc_strdup(pager);
 
 	/*
@@ -884,7 +1043,7 @@ spawn_pager(void)
 	 */
 
 	argc = 0;
-	while (argc + 1 < MAX_PAGER_ARGS) {
+	while (argc + 4 < MAX_PAGER_ARGS) {
 		argv[argc++] = cp;
 		cp = strchr(cp, ' ');
 		if (cp == NULL)
@@ -895,12 +1054,47 @@ spawn_pager(void)
 		if (*cp == '\0')
 			break;
 	}
+
+	/* For more(1) and less(1), use the tag file. */
+
+	if ((cmdlen = strlen(argv[0])) >= 4) {
+		cp = argv[0] + cmdlen - 4;
+		if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
+			argv[argc++] = mandoc_strdup("-T");
+			argv[argc++] = tag_files->tfn;
+		}
+	}
+	argv[argc++] = tag_files->ofn;
 	argv[argc] = NULL;
 
-	/* Hand over to the pager. */
+	switch (pager_pid = fork()) {
+	case -1:
+		err((int)MANDOCLEVEL_SYSERR, "fork");
+	case 0:
+		break;
+	default:
+		(void)setpgid(pager_pid, 0);
+		(void)tcsetpgrp(STDIN_FILENO, pager_pid);
+#if HAVE_PLEDGE
+		if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
+			err((int)MANDOCLEVEL_SYSERR, "pledge");
+#endif
+		tag_files->pager_pid = pager_pid;
+		return pager_pid;
+	}
+
+	/* The child process becomes the pager. */
+
+	if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
+		err((int)MANDOCLEVEL_SYSERR, "pager stdout");
+	close(tag_files->ofd);
+	close(tag_files->tfd);
+
+	/* Do not start the pager before controlling the terminal. */
+
+	while (tcgetpgrp(STDIN_FILENO) != getpid())
+		nanosleep(&timeout, NULL);
 
 	execvp(argv[0], argv);
-	fprintf(stderr, "%s: exec: %s\n",
-	    progname, strerror(errno));
-	exit((int)MANDOCLEVEL_SYSERR);
+	err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
 }