better error message if mandocd is not found

[mandoc.git] / main.c

diff --git a/main.c b/main.c
index 2e65f2c520ebfa5d948ea70187912099133b2ebb..9f878ff5200ef250977c4fb07ece283293218e91 100644 (file)
--- a/main.c
+++ b/main.c
@@ -1,7 +1,7 @@
-/*     $Id: main.c,v 1.291 2017/05/17 23:39:31 schwarze Exp $ */
+/* $Id: main.c,v 1.360 2021/10/04 21:29:17 schwarze Exp $ */

 /*
 /*

+ * Copyright (c) 2010-2012, 2014-2021 Ingo Schwarze <schwarze@openbsd.org>

  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>

- * Copyright (c) 2010-2012, 2014-2017 Ingo Schwarze <schwarze@openbsd.org>

  * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any


@@ -15,11 +15,15 @@
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

+ *
+ * Main program for mandoc(1), man(1), apropos(1), whatis(1), and help(1).

  */
 #include "config.h"
 
 #include <sys/types.h>
  */
 #include "config.h"
 
 #include <sys/types.h>

+#include <sys/ioctl.h>

 #include <sys/param.h> /* MACHINE */
 #include <sys/param.h> /* MACHINE */

+#include <sys/stat.h>

 #include <sys/wait.h>
 
 #include <assert.h>
 #include <sys/wait.h>
 
 #include <assert.h>


@@ -30,6 +34,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <glob.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <glob.h>

+#include <limits.h>

 #if HAVE_SANDBOX_INIT
 #include <sandbox.h>
 #endif
 #if HAVE_SANDBOX_INIT
 #include <sandbox.h>
 #endif


@@ -38,15 +43,19 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>

+#include <termios.h>

 #include <time.h>
 #include <unistd.h>
 
 #include "mandoc_aux.h"
 #include "mandoc.h"
 #include <time.h>
 #include <unistd.h>
 
 #include "mandoc_aux.h"
 #include "mandoc.h"

+#include "mandoc_xr.h"

 #include "roff.h"
 #include "mdoc.h"
 #include "man.h"
 #include "roff.h"
 #include "mdoc.h"
 #include "man.h"

+#include "mandoc_parse.h"

 #include "tag.h"
 #include "tag.h"

+#include "term_tag.h"

 #include "main.h"
 #include "manconf.h"
 #include "mansearch.h"
 #include "main.h"
 #include "manconf.h"
 #include "mansearch.h"


@@ -72,65 +81,73 @@ enum        outt {
        OUTT_PDF        /* -Tpdf */
 };
 
        OUTT_PDF        /* -Tpdf */
 };
 

-struct curparse {
-       struct mparse    *mp;
-       enum mandoclevel  wlevel;       /* ignore messages below this */
+struct outstate {
+       struct tag_files *tag_files;    /* Tagging state variables. */
+       void             *outdata;      /* data for output */
+       int               use_pager;

        int               wstop;        /* stop after a file with a warning */
        int               wstop;        /* stop after a file with a warning */

+       int               had_output;   /* Some output was generated. */

        enum outt         outtype;      /* which output to use */
        enum outt         outtype;      /* which output to use */

-       void             *outdata;      /* data for output */
-       struct manoutput *outopts;      /* output options */

 };
 
 
 int                      mandocdb(int, char *[]);
 
 };
 
 
 int                      mandocdb(int, char *[]);
 

-static int               fs_lookup(const struct manpaths *,
-                               size_t ipath, const char *,
-                               const char *, const char *,
+static void              check_xr(struct manpaths *);
+static void              fs_append(char **, size_t, int,
+                               size_t, const char *, enum form,
+                               struct manpage **, size_t *);
+static int               fs_lookup(const struct manpaths *, size_t,
+                               const char *, const char *, const char *,

                                struct manpage **, size_t *);
                                struct manpage **, size_t *);

-static void              fs_search(const struct mansearch *,
-                               const struct manpaths *, int, char**,
+static int               fs_search(const struct mansearch *,
+                               const struct manpaths *, const char *,

                                struct manpage **, size_t *);
                                struct manpage **, size_t *);

-static int               koptions(int *, char *);
-static void              moptions(int *, char *);
-static void              mmsg(enum mandocerr, enum mandoclevel,
-                               const char *, int, int, const char *);
-static void              outdata_alloc(struct curparse *);
-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              glob_esc(char **, const char *, const char *);
+static void              outdata_alloc(struct outstate *, struct manoutput *);
+static void              parse(struct mparse *, int, const char *,
+                               struct outstate *, struct manconf *);
+static void              passthrough(int, int);
+static void              process_onefile(struct mparse *, struct manpage *,
+                               int, struct outstate *, struct manconf *);
+static void              run_pager(struct outstate *, char *);
+static pid_t             spawn_pager(struct outstate *, char *);

 static void              usage(enum argmode) __attribute__((__noreturn__));
 static void              usage(enum argmode) __attribute__((__noreturn__));

-static int               woptions(struct curparse *, char *);
+static int               woptions(char *, enum mandoc_os *, int *);

 
 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 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 enum mandoclevel  rc;

 
 
 int
 main(int argc, char *argv[])
 {
 
 
 int
 main(int argc, char *argv[])
 {

-       struct manconf   conf;
-       struct mansearch search;
-       struct curparse  curp;
-       struct tag_files *tag_files;
-       struct manpage  *res, *resp;
-       const char      *progname, *sec, *thisarg;
-       char            *conf_file, *defpaths, *auxpaths;
-       char            *defos, *oarg;
+       struct manconf   conf;          /* Manpaths and output options. */
+       struct outstate  outst;         /* Output state. */
+       struct winsize   ws;            /* Result of ioctl(TIOCGWINSZ). */
+       struct mansearch search;        /* Search options. */
+       struct manpage  *res;           /* Complete list of search results. */
+       struct manpage  *resn;          /* Search results for one name. */
+       struct mparse   *mp;            /* Opaque parser object. */
+       const char      *conf_file;     /* -C: alternate config file. */
+       const char      *os_s;          /* -I: Operating system for display. */
+       const char      *progname, *sec, *ep;
+       char            *defpaths;      /* -M: override manpaths. */
+       char            *auxpaths;      /* -m: additional manpaths. */
+       char            *oarg;          /* -O: output option string. */
+       char            *tagarg;        /* -O tag: default value. */

        unsigned char   *uc;
        unsigned char   *uc;

-       size_t           i, sz;
+       size_t           ressz;         /* Number of elements in res[]. */
+       size_t           resnsz;        /* Number of elements in resn[]. */
+       size_t           i, ib, ssz;
+       int              options;       /* Parser options. */
+       int              show_usage;    /* Invalid argument: give up. */

        int              prio, best_prio;
        int              prio, best_prio;

-       enum outmode     outmode;
-       int              fd;
-       int              show_usage;
-       int              options;
-       int              use_pager;
-       int              status, signum;
+       int              startdir;

        int              c;
        int              c;

-       pid_t            pager_pid, tc_pgid, man_pgid, pid;
+       enum mandoc_os   os_e;          /* Check base system conventions. */
+       enum outmode     outmode;       /* According to command line. */

 
 #if HAVE_PROGNAME
        progname = getprogname();
 
 #if HAVE_PROGNAME
        progname = getprogname();


@@ -144,15 +161,17 @@ main(int argc, char *argv[])
        setprogname(progname);
 #endif
 
        setprogname(progname);
 #endif
 

+       mandoc_msg_setoutfile(stderr);

        if (strncmp(progname, "mandocdb", 8) == 0 ||
            strcmp(progname, BINM_MAKEWHATIS) == 0)
                return mandocdb(argc, argv);
 
 #if HAVE_PLEDGE
        if (strncmp(progname, "mandocdb", 8) == 0 ||
            strcmp(progname, BINM_MAKEWHATIS) == 0)
                return mandocdb(argc, argv);
 
 #if HAVE_PLEDGE

-       if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
-               err((int)MANDOCLEVEL_SYSERR, "pledge");
+       if (pledge("stdio rpath wpath cpath tmppath tty proc exec", NULL) == -1) {
+               mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
+               return mandoc_msg_getrc();
+       }

 #endif
 #endif

-

 #if HAVE_SANDBOX_INIT
        if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
                errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
 #if HAVE_SANDBOX_INIT
        if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
                errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");


@@ -161,8 +180,8 @@ main(int argc, char *argv[])
        /* Search options. */
 
        memset(&conf, 0, sizeof(conf));
        /* Search options. */
 
        memset(&conf, 0, sizeof(conf));

-       conf_file = defpaths = NULL;
-       auxpaths = NULL;
+       conf_file = NULL;
+       defpaths = auxpaths = NULL;

 
        memset(&search, 0, sizeof(struct mansearch));
        search.outkey = "Nd";
 
        memset(&search, 0, sizeof(struct mansearch));
        search.outkey = "Nd";


@@ -179,17 +198,19 @@ main(int argc, char *argv[])
        else
                search.argmode = ARG_FILE;
 
        else
                search.argmode = ARG_FILE;
 

-       /* Parser and formatter options. */
+       /* Parser options. */

 
 

-       memset(&curp, 0, sizeof(struct curparse));
-       curp.outtype = OUTT_LOCALE;
-       curp.wlevel  = MANDOCLEVEL_BADARG;
-       curp.outopts = &conf.output;

        options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
        options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;

-       defos = NULL;
+       os_e = MANDOC_OS_OTHER;
+       os_s = NULL;
+
+       /* Formatter options. */
+
+       memset(&outst, 0, sizeof(outst));
+       outst.tag_files = NULL;
+       outst.outtype = OUTT_LOCALE;
+       outst.use_pager = 1;

 
 

-       use_pager = 1;
-       tag_files = NULL;

        show_usage = 0;
        outmode = OUTMODE_DEF;
 
        show_usage = 0;
        outmode = OUTMODE_DEF;
 


@@ -207,30 +228,40 @@ main(int argc, char *argv[])
                        conf_file = optarg;
                        break;
                case 'c':
                        conf_file = optarg;
                        break;
                case 'c':

-                       use_pager = 0;
+                       outst.use_pager = 0;

                        break;
                case 'f':
                        search.argmode = ARG_WORD;
                        break;
                case 'h':
                        conf.output.synopsisonly = 1;
                        break;
                case 'f':
                        search.argmode = ARG_WORD;
                        break;
                case 'h':
                        conf.output.synopsisonly = 1;

-                       use_pager = 0;
+                       outst.use_pager = 0;

                        outmode = OUTMODE_ALL;
                        break;
                case 'I':
                        outmode = OUTMODE_ALL;
                        break;
                case 'I':

-                       if (strncmp(optarg, "os=", 3)) {
-                               warnx("-I %s: Bad argument", optarg);
-                               return (int)MANDOCLEVEL_BADARG;
+                       if (strncmp(optarg, "os=", 3) != 0) {
+                               mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+                                   "-I %s", optarg);
+                               return mandoc_msg_getrc();

                        }
                        }

-                       if (defos) {
-                               warnx("-I %s: Duplicate argument", optarg);
-                               return (int)MANDOCLEVEL_BADARG;
+                       if (os_s != NULL) {
+                               mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
+                                   "-I %s", optarg);
+                               return mandoc_msg_getrc();

                        }
                        }

-                       defos = mandoc_strdup(optarg + 3);
+                       os_s = optarg + 3;

                        break;
                case 'K':
                        break;
                case 'K':

-                       if ( ! koptions(&options, optarg))
-                               return (int)MANDOCLEVEL_BADARG;
+                       options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
+                       if (strcmp(optarg, "utf-8") == 0)
+                               options |=  MPARSE_UTF8;
+                       else if (strcmp(optarg, "iso-8859-1") == 0)
+                               options |=  MPARSE_LATIN1;
+                       else if (strcmp(optarg, "us-ascii") != 0) {
+                               mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+                                   "-K %s", optarg);
+                               return mandoc_msg_getrc();
+                       }

                        break;
                case 'k':
                        search.argmode = ARG_EXPR;
                        break;
                case 'k':
                        search.argmode = ARG_EXPR;


@@ -255,12 +286,37 @@ main(int argc, char *argv[])
                        search.sec = optarg;
                        break;
                case 'T':
                        search.sec = optarg;
                        break;
                case 'T':

-                       if ( ! toptions(&curp, optarg))
-                               return (int)MANDOCLEVEL_BADARG;
+                       if (strcmp(optarg, "ascii") == 0)
+                               outst.outtype = OUTT_ASCII;
+                       else if (strcmp(optarg, "lint") == 0) {
+                               outst.outtype = OUTT_LINT;
+                               mandoc_msg_setoutfile(stdout);
+                               mandoc_msg_setmin(MANDOCERR_BASE);
+                       } else if (strcmp(optarg, "tree") == 0)
+                               outst.outtype = OUTT_TREE;
+                       else if (strcmp(optarg, "man") == 0)
+                               outst.outtype = OUTT_MAN;
+                       else if (strcmp(optarg, "html") == 0)
+                               outst.outtype = OUTT_HTML;
+                       else if (strcmp(optarg, "markdown") == 0)
+                               outst.outtype = OUTT_MARKDOWN;
+                       else if (strcmp(optarg, "utf8") == 0)
+                               outst.outtype = OUTT_UTF8;
+                       else if (strcmp(optarg, "locale") == 0)
+                               outst.outtype = OUTT_LOCALE;
+                       else if (strcmp(optarg, "ps") == 0)
+                               outst.outtype = OUTT_PS;
+                       else if (strcmp(optarg, "pdf") == 0)
+                               outst.outtype = OUTT_PDF;
+                       else {
+                               mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+                                   "-T %s", optarg);
+                               return mandoc_msg_getrc();
+                       }

                        break;
                case 'W':
                        break;
                case 'W':

-                       if ( ! woptions(&curp, optarg))
-                               return (int)MANDOCLEVEL_BADARG;
+                       if (woptions(optarg, &os_e, &outst.wstop) == -1)
+                               return mandoc_msg_getrc();

                        break;
                case 'w':
                        outmode = OUTMODE_FLN;
                        break;
                case 'w':
                        outmode = OUTMODE_FLN;


@@ -276,11 +332,12 @@ main(int argc, char *argv[])
 
        /* Postprocess options. */
 
 
        /* Postprocess options. */
 

-       if (outmode == OUTMODE_DEF) {
+       switch (outmode) {
+       case OUTMODE_DEF:

                switch (search.argmode) {
                case ARG_FILE:
                        outmode = OUTMODE_ALL;
                switch (search.argmode) {
                case ARG_FILE:
                        outmode = OUTMODE_ALL;

-                       use_pager = 0;
+                       outst.use_pager = 0;

                        break;
                case ARG_NAME:
                        outmode = OUTMODE_ONE;
                        break;
                case ARG_NAME:
                        outmode = OUTMODE_ONE;


@@ -289,6 +346,16 @@ main(int argc, char *argv[])
                        outmode = OUTMODE_LST;
                        break;
                }
                        outmode = OUTMODE_LST;
                        break;
                }

+               break;
+       case OUTMODE_FLN:
+               if (search.argmode == ARG_FILE)
+                       outmode = OUTMODE_ALL;
+               break;
+       case OUTMODE_ALL:
+               break;
+       case OUTMODE_LST:
+       case OUTMODE_ONE:
+               abort();

        }
 
        if (oarg != NULL) {
        }
 
        if (oarg != NULL) {


@@ -296,25 +363,45 @@ main(int argc, char *argv[])
                        search.outkey = oarg;
                else {
                        while (oarg != NULL) {
                        search.outkey = oarg;
                else {
                        while (oarg != NULL) {

-                               thisarg = oarg;

                                if (manconf_output(&conf.output,
                                if (manconf_output(&conf.output,

-                                   strsep(&oarg, ","), 0) == 0)
-                                       continue;
-                               warnx("-O %s: Bad argument", thisarg);
-                               return (int)MANDOCLEVEL_BADARG;
+                                   strsep(&oarg, ","), 0) == -1)
+                                       return mandoc_msg_getrc();

                        }
                }
        }
 
                        }
                }
        }
 

+       if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
+               options |= MPARSE_VALIDATE;
+

        if (outmode == OUTMODE_FLN ||
            outmode == OUTMODE_LST ||
        if (outmode == OUTMODE_FLN ||
            outmode == OUTMODE_LST ||

-           !isatty(STDOUT_FILENO))
-               use_pager = 0;
+           (conf.output.outfilename == NULL &&
+            conf.output.tagfilename == NULL &&
+            isatty(STDOUT_FILENO) == 0))
+               outst.use_pager = 0;
+
+       if (outst.use_pager &&
+           (conf.output.width == 0 || conf.output.indent == 0) &&
+           ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
+           ws.ws_col > 1) {
+               if (conf.output.width == 0 && ws.ws_col < 79)
+                       conf.output.width = ws.ws_col - 1;
+               if (conf.output.indent == 0 && ws.ws_col < 66)
+                       conf.output.indent = 3;
+       }

 
 #if HAVE_PLEDGE
 
 #if HAVE_PLEDGE

-       if (!use_pager)
-               if (pledge("stdio rpath", NULL) == -1)
-                       err((int)MANDOCLEVEL_SYSERR, "pledge");
+       if (outst.use_pager == 0)
+               c = pledge("stdio rpath", NULL);
+       else if (conf.output.outfilename != NULL ||
+           conf.output.tagfilename != NULL)
+               c = pledge("stdio rpath wpath cpath", NULL);
+       else
+               c = pledge("stdio rpath tmppath tty proc exec", NULL);
+       if (c == -1) {
+               mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
+               return mandoc_msg_getrc();
+       }

 #endif
 
        /* Parse arguments. */
 #endif
 
        /* Parse arguments. */


@@ -323,11 +410,10 @@ main(int argc, char *argv[])
                argc -= optind;
                argv += optind;
        }
                argc -= optind;
                argv += optind;
        }

-       resp = NULL;

 
        /*
 
        /*

-        * Quirks for help(1)
-        * and for a man(1) section argument without -s.
+        * Quirks for help(1) and man(1),
+        * in particular for a section argument without -s.

         */
 
        if (search.argmode == ARG_NAME) {
         */
 
        if (search.argmode == ARG_NAME) {


@@ -339,7 +425,7 @@ main(int argc, char *argv[])
                } else if (argc > 1 &&
                    ((uc = (unsigned char *)argv[0]) != NULL) &&
                    ((isdigit(uc[0]) && (uc[1] == '\0' ||
                } else if (argc > 1 &&
                    ((uc = (unsigned char *)argv[0]) != NULL) &&
                    ((isdigit(uc[0]) && (uc[1] == '\0' ||

-                     (isalpha(uc[1]) && uc[2] == '\0'))) ||
+                     isalpha(uc[1]))) ||

                     (uc[0] == 'n' && uc[1] == '\0'))) {
                        search.sec = (char *)uc;
                        argv++;
                     (uc[0] == 'n' && uc[1] == '\0'))) {
                        search.sec = (char *)uc;
                        argv++;


@@ -351,245 +437,246 @@ main(int argc, char *argv[])
                if (search.arch == NULL)
                        search.arch = MACHINE;
 #endif
                if (search.arch == NULL)
                        search.arch = MACHINE;
 #endif

+               if (outmode == OUTMODE_ONE)
+                       search.firstmatch = 1;

        }
 
        }
 

-       rc = MANDOCLEVEL_OK;
-
-       /* man(1), whatis(1), apropos(1) */
+       /*
+        * Use the first argument for -O tag in addition to
+        * using it as a search term for man(1) or apropos(1).
+        */

 
 

-       if (search.argmode != ARG_FILE) {
-               if (search.argmode == ARG_NAME &&
-                   outmode == OUTMODE_ONE)
-                       search.firstmatch = 1;
+       if (conf.output.tag != NULL && *conf.output.tag == '\0') {
+               tagarg = argc > 0 && search.argmode == ARG_EXPR ?
+                   strchr(*argv, '=') : NULL;
+               conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
+       }

 
 

-               /* Access the mandoc database. */
+       /* Read the configuration file. */

 
 

+       if (search.argmode != ARG_FILE ||
+           mandoc_msg_getmin() == MANDOCERR_STYLE)

                manconf_parse(&conf, conf_file, defpaths, auxpaths);
                manconf_parse(&conf, conf_file, defpaths, auxpaths);

-               if ( ! mansearch(&search, &conf.manpath,
-                   argc, argv, &res, &sz))
-                       usage(search.argmode);

 
 

-               if (sz == 0) {
-                       if (search.argmode == ARG_NAME)
-                               fs_search(&search, &conf.manpath,
-                                   argc, argv, &res, &sz);
-                       else
-                               warnx("nothing appropriate");
-               }
+       /* man(1): Resolve each name individually. */

 
 

-               if (sz == 0) {
-                       rc = MANDOCLEVEL_BADARG;
-                       goto out;
+       if (search.argmode == ARG_NAME) {
+               if (argc < 1) {
+                       if (outmode != OUTMODE_FLN)
+                               usage(ARG_NAME);
+                       if (conf.manpath.sz == 0) {
+                               warnx("The manpath is empty.");
+                               mandoc_msg_setrc(MANDOCLEVEL_BADARG);
+                       } else {
+                               for (i = 0; i + 1 < conf.manpath.sz; i++)
+                                       printf("%s:", conf.manpath.paths[i]);
+                               printf("%s\n", conf.manpath.paths[i]);
+                       }
+                       manconf_free(&conf);
+                       return (int)mandoc_msg_getrc();

                }
                }

+               for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
+                       (void)mansearch(&search, &conf.manpath,
+                           1, argv, &resn, &resnsz);
+                       if (resnsz == 0)
+                               (void)fs_search(&search, &conf.manpath,
+                                   *argv, &resn, &resnsz);
+                       if (resnsz == 0 && strchr(*argv, '/') == NULL) {
+                               if (search.arch != NULL &&
+                                   arch_valid(search.arch, OSENUM) == 0)
+                                       warnx("Unknown architecture \"%s\".",
+                                           search.arch);
+                               else if (search.sec != NULL)
+                                       warnx("No entry for %s in "
+                                           "section %s of the manual.",
+                                           *argv, search.sec);
+                               else
+                                       warnx("No entry for %s in "
+                                           "the manual.", *argv);
+                               mandoc_msg_setrc(MANDOCLEVEL_BADARG);
+                               continue;
+                       }
+                       if (resnsz == 0) {
+                               if (access(*argv, R_OK) == -1) {
+                                       mandoc_msg_setinfilename(*argv);
+                                       mandoc_msg(MANDOCERR_BADARG_BAD,
+                                           0, 0, "%s", strerror(errno));
+                                       mandoc_msg_setinfilename(NULL);
+                                       continue;
+                               }
+                               resnsz = 1;
+                               resn = mandoc_calloc(resnsz, sizeof(*res));
+                               resn->file = mandoc_strdup(*argv);
+                               resn->ipath = SIZE_MAX;
+                               resn->form = FORM_SRC;
+                       }
+                       if (outmode != OUTMODE_ONE || resnsz == 1) {
+                               res = mandoc_reallocarray(res,
+                                   ressz + resnsz, sizeof(*res));
+                               memcpy(res + ressz, resn,
+                                   sizeof(*resn) * resnsz);
+                               ressz += resnsz;
+                               free(resn);
+                               resn = NULL;
+                               resnsz = 0;
+                               continue;
+                       }
+
+                       /* Search for the best section. */

 
 

-               /*
-                * For standard man(1) and -a output mode,
-                * prepare for copying filename pointers
-                * into the program parameter array.
-                */
-
-               if (outmode == OUTMODE_ONE) {
-                       argc = 1;
-                       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);
-                       else if (outmode == OUTMODE_LST)
-                               printf("%s - %s\n", res[i].names,
-                                   res[i].output == NULL ? "" :
-                                   res[i].output);
-                       else if (outmode == OUTMODE_ONE) {
-                               /* Search for the best section. */
-                               sec = res[i].file;
+                       best_prio = 40;
+                       for (ib = i = 0; i < resnsz; i++) {
+                               sec = resn[i].file;

                                sec += strcspn(sec, "123456789");
                                if (sec[0] == '\0')
                                sec += strcspn(sec, "123456789");
                                if (sec[0] == '\0')

-                                       continue;
+                                       continue; /* No section at all. */

                                prio = sec_prios[sec[0] - '1'];
                                prio = sec_prios[sec[0] - '1'];

-                               if (sec[1] != '/')
-                                       prio += 10;
+                               if (search.sec != NULL) {
+                                       ssz = strlen(search.sec);
+                                       if (strncmp(sec, search.sec, ssz) == 0)
+                                               sec += ssz;
+                               } else
+                                       sec++; /* Prefer without suffix. */
+                               if (*sec != '/')
+                                       prio += 10; /* Wrong dir name. */
+                               if (search.sec != NULL) {
+                                       ep = strchr(sec, '\0');
+                                       if (ep - sec > 3 &&
+                                           strncmp(ep - 3, ".gz", 3) == 0)
+                                               ep -= 3;
+                                       if ((size_t)(ep - sec) < ssz + 3 ||
+                                           strncmp(ep - ssz, search.sec,
+                                            ssz) != 0)      /* Wrong file */
+                                               prio += 20;  /* extension. */
+                               }

                                if (prio >= best_prio)
                                        continue;
                                best_prio = prio;
                                if (prio >= best_prio)
                                        continue;
                                best_prio = prio;

-                               resp = res + i;
+                               ib = i;

                        }
                        }

+                       res = mandoc_reallocarray(res, ressz + 1,
+                           sizeof(*res));
+                       memcpy(res + ressz++, resn + ib, sizeof(*resn));
+                       memset(resn + ib, 0, sizeof(*resn));
+                       mansearch_free(resn, resnsz);
+                       resn = NULL;
+                       resnsz = 0;

                }
 
                }
 

-               /*
-                * For man(1), -a and -i output mode, fall through
-                * to the main mandoc(1) code iterating files
-                * and running the parsers on each of them.
-                */
+       /* apropos(1), whatis(1): Process the full search expression. */

 
 

-               if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
+       } else if (search.argmode != ARG_FILE) {
+               if (mansearch(&search, &conf.manpath,
+                   argc, argv, &res, &ressz) == 0)
+                       usage(search.argmode);
+
+               if (ressz == 0) {
+                       warnx("nothing appropriate");
+                       mandoc_msg_setrc(MANDOCLEVEL_BADARG);

                        goto out;
                        goto out;

-       }
+               }

 
 

-       /* mandoc(1) */
+       /* mandoc(1): Take command line arguments as file names. */

 
 

-#if HAVE_PLEDGE
-       if (use_pager) {
-               if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
-                       err((int)MANDOCLEVEL_SYSERR, "pledge");

        } else {
        } else {

-               if (pledge("stdio rpath", NULL) == -1)
-                       err((int)MANDOCLEVEL_SYSERR, "pledge");
+               ressz = argc > 0 ? argc : 1;
+               res = mandoc_calloc(ressz, sizeof(*res));
+               for (i = 0; i < ressz; i++) {
+                       if (argc > 0)
+                               res[i].file = mandoc_strdup(argv[i]);
+                       res[i].ipath = SIZE_MAX;
+                       res[i].form = FORM_SRC;
+               }

        }
        }

-#endif

 
 

-       if (search.argmode == ARG_FILE)
-               moptions(&options, auxpaths);
+       switch (outmode) {
+       case OUTMODE_FLN:
+               for (i = 0; i < ressz; i++)
+                       puts(res[i].file);
+               goto out;
+       case OUTMODE_LST:
+               for (i = 0; i < ressz; i++)
+                       printf("%s - %s\n", res[i].names,
+                           res[i].output == NULL ? "" :
+                           res[i].output);
+               goto out;
+       default:
+               break;
+       }
+
+       if (search.argmode == ARG_FILE && auxpaths != NULL) {
+               if (strcmp(auxpaths, "doc") == 0)
+                       options |= MPARSE_MDOC;
+               else if (strcmp(auxpaths, "an") == 0)
+                       options |= MPARSE_MAN;
+       }

 
        mchars_alloc();
 
        mchars_alloc();

-       curp.mp = mparse_alloc(options, curp.wlevel, mmsg, defos);
+       mp = mparse_alloc(options, os_e, os_s);

 
        /*
 
        /*

-        * Conditionally start up the lookaside buffer before parsing.
+        * Remember the original working directory, if possible.
+        * This will be needed if some names on the command line
+        * are page names and some are relative file names.
+        * Do not error out if the current directory is not
+        * readable: Maybe it won't be needed after all.

         */
         */

-       if (OUTT_MAN == curp.outtype)
-               mparse_keep(curp.mp);
-
-       if (argc < 1) {
-               if (use_pager)
-                       tag_files = tag_init();
-               parse(&curp, STDIN_FILENO, "<stdin>");
-       }
-
-       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(conf.manpath.paths[resp->ipath]);
-                               parse(&curp, fd, resp->file);
-                       } else
-                               passthrough(resp->file, fd,
-                                   conf.output.synopsisonly);
-
-                       if (argc > 1 && curp.outtype <= OUTT_UTF8) {
-                               if (curp.outdata == NULL)
-                                       outdata_alloc(&curp);
-                               terminal_sepline(curp.outdata);
-                       }
-               } else if (rc < MANDOCLEVEL_ERROR)
-                       rc = MANDOCLEVEL_ERROR;
-
-               if (MANDOCLEVEL_OK != rc && curp.wstop)
+       startdir = open(".", O_RDONLY | O_DIRECTORY);
+       for (i = 0; i < ressz; i++) {
+               process_onefile(mp, res + i, startdir, &outst, &conf);
+               if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)

                        break;
                        break;

-
-               if (resp != NULL)
-                       resp++;
-               else
-                       argv++;
-               if (--argc)
-                       mparse_reset(curp.mp);

        }
        }

-
-       if (curp.outdata != NULL) {
-               switch (curp.outtype) {
+       if (startdir != -1) {
+               (void)fchdir(startdir);
+               close(startdir);
+       }
+       if (conf.output.tag != NULL && conf.output.tag_found == 0) {
+               mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", conf.output.tag);
+               conf.output.tag = NULL;
+       }
+       if (outst.outdata != NULL) {
+               switch (outst.outtype) {

                case OUTT_HTML:
                case OUTT_HTML:

-                       html_free(curp.outdata);
+                       html_free(outst.outdata);

                        break;
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_ASCII:
                        break;
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_ASCII:

-                       ascii_free(curp.outdata);
+                       ascii_free(outst.outdata);

                        break;
                case OUTT_PDF:
                case OUTT_PS:
                        break;
                case OUTT_PDF:
                case OUTT_PS:

-                       pspdf_free(curp.outdata);
+                       pspdf_free(outst.outdata);

                        break;
                default:
                        break;
                }
        }
                        break;
                default:
                        break;
                }
        }

-       mparse_free(curp.mp);
+       mandoc_xr_free();
+       mparse_free(mp);

        mchars_free();
 
 out:
        mchars_free();
 
 out:

-       if (search.argmode != ARG_FILE) {
+       mansearch_free(res, ressz);
+       if (search.argmode != ARG_FILE)

                manconf_free(&conf);
                manconf_free(&conf);

-               mansearch_free(res, sz);
-       }
-
-       free(defos);
-
-       /*
-        * When using a pager, finish writing both temporary files,
-        * fork it, wait for the user to close it, and clean up.
-        */
-
-       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(tag_files->ofd);
-                       if (tc_pgid != man_pgid) {
-                               if (tc_pgid == pager_pid) {
-                                       (void)tcsetpgrp(tag_files->ofd,
-                                           man_pgid);
-                                       if (signum == SIGTTIN)
-                                               continue;
-                               } else
-                                       tag_files->tcpgid = tc_pgid;
-                               kill(0, signum);
-                               continue;
-                       }

 
 

-                       /* Once in the foreground, activate the pager. */
+       if (outst.tag_files != NULL) {
+               if (term_tag_close() != -1 &&
+                   conf.output.outfilename == NULL &&
+                   conf.output.tagfilename == NULL)
+                       run_pager(&outst, conf.output.tag);
+               term_tag_unlink();
+       } else if (outst.had_output && outst.outtype != OUTT_LINT)
+               mandoc_msg_summary();

 
 

-                       if (pager_pid) {
-                               (void)tcsetpgrp(tag_files->ofd, 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();
-       }
-
-       return (int)rc;
+       return (int)mandoc_msg_getrc();

 }
 
 static void
 usage(enum argmode argmode)
 {
 }
 
 static void
 usage(enum argmode argmode)
 {

-

        switch (argmode) {
        case ARG_FILE:
                fputs("usage: mandoc [-ac] [-I os=name] "
        switch (argmode) {
        case ARG_FILE:
                fputs("usage: mandoc [-ac] [-I os=name] "


@@ -615,27 +702,71 @@ usage(enum argmode argmode)
        exit((int)MANDOCLEVEL_BADARG);
 }
 
        exit((int)MANDOCLEVEL_BADARG);
 }
 

+static void
+glob_esc(char **dst, const char *src, const char *suffix)
+{
+       while (*src != '\0') {
+               if (strchr("*?[", *src) != NULL)
+                       *(*dst)++ = '\\';
+               *(*dst)++ = *src++;
+       }
+       while (*suffix != '\0')
+               *(*dst)++ = *suffix++;
+}
+
+static void
+fs_append(char **file, size_t filesz, int copy, size_t ipath,
+    const char *sec, enum form form, struct manpage **res, size_t *ressz)
+{
+       struct manpage  *page;
+
+       *res = mandoc_reallocarray(*res, *ressz + filesz, sizeof(**res));
+       page = *res + *ressz;
+       *ressz += filesz;
+       for (;;) {
+               page->file = copy ? mandoc_strdup(*file) : *file;
+               page->names = NULL;
+               page->output = NULL;
+               page->bits = NAME_FILE & NAME_MASK;
+               page->ipath = ipath;
+               page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
+               page->form = form;
+               if (--filesz == 0)
+                       break;
+               file++;
+               page++;
+       }
+}
+

 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)
 {
 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)
 {

+       struct stat      sb;

        glob_t           globinfo;
        glob_t           globinfo;

-       struct manpage  *page;
-       char            *file;
+       char            *file, *cp, secnum[2];

        int              globres;
        enum form        form;
 
        int              globres;
        enum form        form;
 

+       const char *const slman = "/man";
+       const char *const slash = "/";
+       const char *const sglob = ".[01-9]*";
+       const char *const dot   = ".";
+       const char *const aster = "*";
+
+       memset(&globinfo, 0, sizeof(globinfo));

        form = FORM_SRC;
        form = FORM_SRC;

+

        mandoc_asprintf(&file, "%s/man%s/%s.%s",
            paths->paths[ipath], sec, name, sec);
        mandoc_asprintf(&file, "%s/man%s/%s.%s",
            paths->paths[ipath], sec, name, sec);

-       if (access(file, R_OK) != -1)
+       if (stat(file, &sb) != -1)

                goto found;
        free(file);
 
        mandoc_asprintf(&file, "%s/cat%s/%s.0",
            paths->paths[ipath], sec, name);
                goto found;
        free(file);
 
        mandoc_asprintf(&file, "%s/cat%s/%s.0",
            paths->paths[ipath], sec, name);

-       if (access(file, R_OK) != -1) {
+       if (stat(file, &sb) != -1) {

                form = FORM_CAT;
                goto found;
        }
                form = FORM_CAT;
                goto found;
        }


@@ -644,182 +775,324 @@ fs_lookup(const struct manpaths *paths, size_t ipath,
        if (arch != NULL) {
                mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
                    paths->paths[ipath], sec, arch, name, sec);
        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)
+               if (stat(file, &sb) != -1)

                        goto found;
                free(file);
        }
 
                        goto found;
                free(file);
        }
 

-       mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
-           paths->paths[ipath], sec, name);
+       cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 +
+           strlen(slman) + strlen(sec) * 2 + strlen(slash) +
+           strlen(name) * 2 + strlen(sglob) + 1);
+       glob_esc(&cp, paths->paths[ipath], slman);
+       glob_esc(&cp, sec, slash);
+       glob_esc(&cp, name, sglob);
+       *cp = '\0';

        globres = glob(file, 0, NULL, &globinfo);
        if (globres != 0 && globres != GLOB_NOMATCH)
        globres = glob(file, 0, NULL, &globinfo);
        if (globres != 0 && globres != GLOB_NOMATCH)

-               warn("%s: glob", file);
+               mandoc_msg(MANDOCERR_GLOB, 0, 0,
+                   "%s: %s", file, strerror(errno));

        free(file);
        free(file);

+       file = NULL;

        if (globres == 0)
        if (globres == 0)

-               file = mandoc_strdup(*globinfo.gl_pathv);
+               goto found;

        globfree(&globinfo);
        globfree(&globinfo);

-       if (globres != 0)
-               return 0;
+
+       if (sec[1] != '\0' && *ressz == 0) {
+               secnum[0] = sec[0];
+               secnum[1] = '\0';
+               cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 +
+                   strlen(slman) + strlen(secnum) * 2 + strlen(slash) +
+                   strlen(name) * 2 + strlen(dot) +
+                   strlen(sec) * 2 + strlen(aster) + 1);
+               glob_esc(&cp, paths->paths[ipath], slman);
+               glob_esc(&cp, secnum, slash);
+               glob_esc(&cp, name, dot);
+               glob_esc(&cp, sec, aster);
+               *cp = '\0';
+               globres = glob(file, 0, NULL, &globinfo);
+               if (globres != 0 && globres != GLOB_NOMATCH)
+                       mandoc_msg(MANDOCERR_GLOB, 0, 0,
+                           "%s: %s", file, strerror(errno));
+               free(file);
+               file = NULL;
+               if (globres == 0)
+                       goto found;
+               globfree(&globinfo);
+       }
+
+       if (res != NULL || ipath + 1 != paths->sz)
+               return -1;
+
+       mandoc_asprintf(&file, "%s.%s", name, sec);
+       globres = stat(file, &sb);
+       free(file);
+       return globres;

 
 found:
        warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
            name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
 
 found:
        warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
            name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);

-       *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;
+       if (res == NULL)
+               free(file);
+       else if (file == NULL)
+               fs_append(globinfo.gl_pathv, globinfo.gl_pathc, 1,
+                   ipath, sec, form, res, ressz);
+       else
+               fs_append(&file, 1, 0, ipath, sec, form, res, ressz);
+       globfree(&globinfo);
+       return 0;

 }
 
 }
 

-static void
+static int

 fs_search(const struct mansearch *cfg, const struct manpaths *paths,
 fs_search(const struct mansearch *cfg, const struct manpaths *paths,

-       int argc, char **argv, struct manpage **res, size_t *ressz)
+       const char *name, struct manpage **res, size_t *ressz)

 {
        const char *const sections[] =
            {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
        const size_t nsec = sizeof(sections)/sizeof(sections[0]);
 
 {
        const char *const sections[] =
            {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
        const size_t nsec = sizeof(sections)/sizeof(sections[0]);
 

-       size_t           ipath, isec, lastsz;
+       size_t           ipath, isec;

 
        assert(cfg->argmode == ARG_NAME);
 
        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 (res != NULL)
+               *res = NULL;
+       *ressz = 0;
+       for (ipath = 0; ipath < paths->sz; ipath++) {
+               if (cfg->sec != NULL) {
+                       if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
+                           name, res, ressz) != -1 && cfg->firstmatch)
+                               return 0;
+               } else {
+                       for (isec = 0; isec < nsec; isec++)

                                if (fs_lookup(paths, ipath, sections[isec],
                                if (fs_lookup(paths, ipath, sections[isec],

-                                   cfg->arch, *argv, res, ressz) &&
+                                   cfg->arch, name, res, ressz) != -1 &&

                                    cfg->firstmatch)
                                    cfg->firstmatch)

-                                       return;
+                                       return 0;

                }
                }

-               if (*ressz == lastsz)
-                       warnx("No entry for %s in the manual.", *argv);
-               lastsz = *ressz;
-               argv++;
-               argc--;

        }
        }

+       return -1;

 }
 
 static void
 }
 
 static void

-parse(struct curparse *curp, int fd, const char *file)
+process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
+    struct outstate *outst, struct manconf *conf)

 {
 {

-       enum mandoclevel  rctmp;
-       struct roff_man  *man;
+       int      fd;

 
 

-       /* Begin by parsing the file itself. */
+       /*
+        * Changing directories is not needed in ARG_FILE mode.
+        * Do it on a best-effort basis.  Even in case of
+        * failure, some functionality may still work.
+        */
+       if (resp->ipath != SIZE_MAX)
+               (void)chdir(conf->manpath.paths[resp->ipath]);
+       else if (startdir != -1)
+               (void)fchdir(startdir);
+
+       mandoc_msg_setinfilename(resp->file);
+       if (resp->file != NULL) {
+               if ((fd = mparse_open(mp, resp->file)) == -1) {
+                       mandoc_msg(resp->ipath == SIZE_MAX ?
+                           MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
+                           0, 0, "%s", strerror(errno));
+                       mandoc_msg_setinfilename(NULL);
+                       return;
+               }
+       } else
+               fd = STDIN_FILENO;
+
+       if (outst->use_pager) {
+               outst->use_pager = 0;
+               outst->tag_files = term_tag_init(conf->output.outfilename,
+                   outst->outtype == OUTT_HTML ? ".html" : "",
+                   conf->output.tagfilename);
+#if HAVE_PLEDGE
+               if ((conf->output.outfilename != NULL ||
+                    conf->output.tagfilename != NULL) &&
+                   pledge("stdio rpath cpath", NULL) == -1) {
+                       mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+                           "%s", strerror(errno));
+                       exit(mandoc_msg_getrc());
+               }
+#endif
+       }
+       if (outst->had_output && outst->outtype <= OUTT_UTF8) {
+               if (outst->outdata == NULL)
+                       outdata_alloc(outst, &conf->output);
+               terminal_sepline(outst->outdata);
+       }
+
+       if (resp->form == FORM_SRC)
+               parse(mp, fd, resp->file, outst, conf);
+       else {
+               passthrough(fd, conf->output.synopsisonly);
+               outst->had_output = 1;
+       }
+
+       if (ferror(stdout)) {
+               if (outst->tag_files != NULL) {
+                       mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
+                           outst->tag_files->ofn, strerror(errno));
+                       term_tag_unlink();
+                       outst->tag_files = NULL;
+               } else
+                       mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
+                           strerror(errno));
+       }
+       mandoc_msg_setinfilename(NULL);
+}
+
+static void
+parse(struct mparse *mp, int fd, const char *file,
+    struct outstate *outst, struct manconf *conf)
+{
+       static struct manpaths   basepaths;
+       static int               previous;
+       struct roff_meta        *meta;

 
 

-       assert(file);

        assert(fd >= 0);
        assert(fd >= 0);

+       if (file == NULL)
+               file = "<stdin>";
+
+       if (previous)
+               mparse_reset(mp);
+       else
+               previous = 1;

 
 

-       rctmp = mparse_readfd(curp->mp, fd, file);
+       mparse_readfd(mp, fd, file);

        if (fd != STDIN_FILENO)
                close(fd);
        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.
         */
 
 
        /*
         * With -Wstop and warnings or errors of at least the requested
         * level, do not produce output.
         */
 

-       if (rctmp != MANDOCLEVEL_OK && curp->wstop)
+       if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)

                return;
 
                return;
 

-       if (curp->outdata == NULL)
-               outdata_alloc(curp);
+       if (outst->outdata == NULL)
+               outdata_alloc(outst, &conf->output);
+       else if (outst->outtype == OUTT_HTML)
+               html_reset(outst->outdata);

 
 

-       mparse_result(curp->mp, &man, NULL);
+       mandoc_xr_reset();
+       meta = mparse_result(mp);

 
        /* Execute the out device, if it exists. */
 
 
        /* Execute the out device, if it exists. */
 

-       if (man == NULL)
-               return;
-       if (man->macroset == MACROSET_MDOC) {
-               if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
-                       mdoc_validate(man);
-               switch (curp->outtype) {
+       outst->had_output = 1;
+       if (meta->macroset == MACROSET_MDOC) {
+               switch (outst->outtype) {

                case OUTT_HTML:
                case OUTT_HTML:

-                       html_mdoc(curp->outdata, man);
+                       html_mdoc(outst->outdata, meta);

                        break;
                case OUTT_TREE:
                        break;
                case OUTT_TREE:

-                       tree_mdoc(curp->outdata, man);
+                       tree_mdoc(outst->outdata, meta);

                        break;
                case OUTT_MAN:
                        break;
                case OUTT_MAN:

-                       man_mdoc(curp->outdata, man);
+                       man_mdoc(outst->outdata, meta);

                        break;
                case OUTT_PDF:
                case OUTT_ASCII:
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_PS:
                        break;
                case OUTT_PDF:
                case OUTT_ASCII:
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_PS:

-                       terminal_mdoc(curp->outdata, man);
+                       terminal_mdoc(outst->outdata, meta);

                        break;
                case OUTT_MARKDOWN:
                        break;
                case OUTT_MARKDOWN:

-                       markdown_mdoc(curp->outdata, man);
+                       markdown_mdoc(outst->outdata, meta);

                        break;
                default:
                        break;
                }
        }
                        break;
                default:
                        break;
                }
        }

-       if (man->macroset == MACROSET_MAN) {
-               if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
-                       man_validate(man);
-               switch (curp->outtype) {
+       if (meta->macroset == MACROSET_MAN) {
+               switch (outst->outtype) {

                case OUTT_HTML:
                case OUTT_HTML:

-                       html_man(curp->outdata, man);
+                       html_man(outst->outdata, meta);

                        break;
                case OUTT_TREE:
                        break;
                case OUTT_TREE:

-                       tree_man(curp->outdata, man);
+                       tree_man(outst->outdata, meta);

                        break;
                case OUTT_MAN:
                        break;
                case OUTT_MAN:

-                       man_man(curp->outdata, man);
+                       mparse_copy(mp);

                        break;
                case OUTT_PDF:
                case OUTT_ASCII:
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_PS:
                        break;
                case OUTT_PDF:
                case OUTT_ASCII:
                case OUTT_UTF8:
                case OUTT_LOCALE:
                case OUTT_PS:

-                       terminal_man(curp->outdata, man);
+                       terminal_man(outst->outdata, meta);
+                       break;
+               case OUTT_MARKDOWN:
+                       mandoc_msg(MANDOCERR_MAN_TMARKDOWN, 0, 0, NULL);

                        break;
                default:
                        break;
                }
        }
                        break;
                default:
                        break;
                }
        }

-       mparse_updaterc(curp->mp, &rc);
+       if (conf->output.tag != NULL && conf->output.tag_found == 0 &&
+           tag_exists(conf->output.tag))
+               conf->output.tag_found = 1;
+
+       if (mandoc_msg_getmin() < MANDOCERR_STYLE) {
+               if (basepaths.sz == 0)
+                       manpath_base(&basepaths);
+               check_xr(&basepaths);
+       } else if (mandoc_msg_getmin() < MANDOCERR_WARNING)
+               check_xr(&conf->manpath);
+}
+
+static void
+check_xr(struct manpaths *paths)
+{
+       struct mansearch         search;
+       struct mandoc_xr        *xr;
+       size_t                   sz;
+
+       for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
+               if (xr->line == -1)
+                       continue;
+               search.arch = NULL;
+               search.sec = xr->sec;
+               search.outkey = NULL;
+               search.argmode = ARG_NAME;
+               search.firstmatch = 1;
+               if (mansearch(&search, paths, 1, &xr->name, NULL, &sz))
+                       continue;
+               if (fs_search(&search, paths, xr->name, NULL, &sz) != -1)
+                       continue;
+               if (xr->count == 1)
+                       mandoc_msg(MANDOCERR_XR_BAD, xr->line,
+                           xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
+               else
+                       mandoc_msg(MANDOCERR_XR_BAD, xr->line,
+                           xr->pos + 1, "Xr %s %s (%d times)",
+                           xr->name, xr->sec, xr->count);
+       }

 }
 
 static void
 }
 
 static void

-outdata_alloc(struct curparse *curp)
+outdata_alloc(struct outstate *outst, struct manoutput *outconf)

 {
 {

-       switch (curp->outtype) {
+       switch (outst->outtype) {

        case OUTT_HTML:
        case OUTT_HTML:

-               curp->outdata = html_alloc(curp->outopts);
+               outst->outdata = html_alloc(outconf);

                break;
        case OUTT_UTF8:
                break;
        case OUTT_UTF8:

-               curp->outdata = utf8_alloc(curp->outopts);
+               outst->outdata = utf8_alloc(outconf);

                break;
        case OUTT_LOCALE:
                break;
        case OUTT_LOCALE:

-               curp->outdata = locale_alloc(curp->outopts);
+               outst->outdata = locale_alloc(outconf);

                break;
        case OUTT_ASCII:
                break;
        case OUTT_ASCII:

-               curp->outdata = ascii_alloc(curp->outopts);
+               outst->outdata = ascii_alloc(outconf);

                break;
        case OUTT_PDF:
                break;
        case OUTT_PDF:

-               curp->outdata = pdf_alloc(curp->outopts);
+               outst->outdata = pdf_alloc(outconf);

                break;
        case OUTT_PS:
                break;
        case OUTT_PS:

-               curp->outdata = ps_alloc(curp->outopts);
+               outst->outdata = ps_alloc(outconf);

                break;
        default:
                break;
                break;
        default:
                break;


@@ -827,34 +1100,34 @@ outdata_alloc(struct curparse *curp)
 }
 
 static void
 }
 
 static void

-passthrough(const char *file, int fd, int synopsis_only)
+passthrough(int fd, int synopsis_only)

 {
        const char       synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
        const char       synr[] = "SYNOPSIS";
 
        FILE            *stream;
 {
        const char       synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
        const char       synr[] = "SYNOPSIS";
 
        FILE            *stream;

-       const char      *syscall;

        char            *line, *cp;
        size_t           linesz;
        ssize_t          len, written;
        char            *line, *cp;
        size_t           linesz;
        ssize_t          len, written;

-       int              print;
+       int              lno, print;

 
 

+       stream = NULL;

        line = NULL;
        linesz = 0;
 
        if (fflush(stdout) == EOF) {
        line = NULL;
        linesz = 0;
 
        if (fflush(stdout) == EOF) {

-               syscall = "fflush";
-               goto fail;
+               mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
+               goto done;

        }
        }

-

        if ((stream = fdopen(fd, "r")) == NULL) {
                close(fd);
        if ((stream = fdopen(fd, "r")) == NULL) {
                close(fd);

-               syscall = "fdopen";
-               goto fail;
+               mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
+               goto done;

        }
 
        }
 

-       print = 0;
+       lno = print = 0;

        while ((len = getline(&line, &linesz, stream)) != -1) {
        while ((len = getline(&line, &linesz, stream)) != -1) {

+               lno++;

                cp = line;
                if (synopsis_only) {
                        if (print) {
                cp = line;
                if (synopsis_only) {
                        if (print) {


@@ -872,182 +1145,162 @@ passthrough(const char *file, int fd, int synopsis_only)
                        }
                }
                for (; len > 0; len -= written) {
                        }
                }
                for (; len > 0; len -= written) {

-                       if ((written = write(STDOUT_FILENO, cp, len)) != -1)
-                               continue;
-                       fclose(stream);
-                       syscall = "write";
-                       goto fail;
+                       if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
+                               mandoc_msg(MANDOCERR_WRITE, 0, 0,
+                                   "%s", strerror(errno));
+                               goto done;
+                       }

                }
        }
                }
        }

-
-       if (ferror(stream)) {
-               fclose(stream);
-               syscall = "getline";
-               goto fail;
-       }
+       if (ferror(stream))
+               mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));

 
 done:
        free(line);
 
 done:
        free(line);

-       fclose(stream);
-       return;
-
-fail:
-       free(line);
-       warn("%s: SYSERR: %s", file, syscall);
-       if (rc < MANDOCLEVEL_SYSERR)
-               rc = MANDOCLEVEL_SYSERR;
-}
-
-static int
-koptions(int *options, char *arg)
-{
-
-       if ( ! strcmp(arg, "utf-8")) {
-               *options |=  MPARSE_UTF8;
-               *options &= ~MPARSE_LATIN1;
-       } else if ( ! strcmp(arg, "iso-8859-1")) {
-               *options |=  MPARSE_LATIN1;
-               *options &= ~MPARSE_UTF8;
-       } else if ( ! strcmp(arg, "us-ascii")) {
-               *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
-       } else {
-               warnx("-K %s: Bad argument", arg);
-               return 0;
-       }
-       return 1;
-}
-
-static void
-moptions(int *options, char *arg)
-{
-
-       if (arg == NULL)
-               return;
-       if (strcmp(arg, "doc") == 0)
-               *options |= MPARSE_MDOC;
-       else if (strcmp(arg, "an") == 0)
-               *options |= MPARSE_MAN;
-}
-
-static int
-toptions(struct curparse *curp, char *arg)
-{
-
-       if (0 == strcmp(arg, "ascii"))
-               curp->outtype = OUTT_ASCII;
-       else if (0 == strcmp(arg, "lint")) {
-               curp->outtype = OUTT_LINT;
-               curp->wlevel  = MANDOCLEVEL_WARNING;
-       } else if (0 == strcmp(arg, "tree"))
-               curp->outtype = OUTT_TREE;
-       else if (0 == strcmp(arg, "man"))
-               curp->outtype = OUTT_MAN;
-       else if (0 == strcmp(arg, "html"))
-               curp->outtype = OUTT_HTML;
-       else if (0 == strcmp(arg, "markdown"))
-               curp->outtype = OUTT_MARKDOWN;
-       else if (0 == strcmp(arg, "utf8"))
-               curp->outtype = OUTT_UTF8;
-       else if (0 == strcmp(arg, "locale"))
-               curp->outtype = OUTT_LOCALE;
-       else if (0 == strcmp(arg, "ps"))
-               curp->outtype = OUTT_PS;
-       else if (0 == strcmp(arg, "pdf"))
-               curp->outtype = OUTT_PDF;
-       else {
-               warnx("-T %s: Bad argument", arg);
-               return 0;
-       }
-
-       return 1;
+       if (stream != NULL)
+               fclose(stream);

 }
 
 static int
 }
 
 static int

-woptions(struct curparse *curp, char *arg)
+woptions(char *arg, enum mandoc_os *os_e, int *wstop)

 {
        char            *v, *o;
 {
        char            *v, *o;

-       const char      *toks[8];
+       const char      *toks[11];

 
        toks[0] = "stop";
        toks[1] = "all";
 
        toks[0] = "stop";
        toks[1] = "all";

-       toks[2] = "style";
-       toks[3] = "warning";
-       toks[4] = "error";
-       toks[5] = "unsupp";
-       toks[6] = "fatal";
-       toks[7] = NULL;
+       toks[2] = "base";
+       toks[3] = "style";
+       toks[4] = "warning";
+       toks[5] = "error";
+       toks[6] = "unsupp";
+       toks[7] = "fatal";
+       toks[8] = "openbsd";
+       toks[9] = "netbsd";
+       toks[10] = NULL;

 
        while (*arg) {
                o = arg;
                switch (getsubopt(&arg, (char * const *)toks, &v)) {
                case 0:
 
        while (*arg) {
                o = arg;
                switch (getsubopt(&arg, (char * const *)toks, &v)) {
                case 0:

-                       curp->wstop = 1;
+                       *wstop = 1;

                        break;
                case 1:
                case 2:
                        break;
                case 1:
                case 2:

-                       curp->wlevel = MANDOCLEVEL_STYLE;
+                       mandoc_msg_setmin(MANDOCERR_BASE);

                        break;
                case 3:
                        break;
                case 3:

-                       curp->wlevel = MANDOCLEVEL_WARNING;
+                       mandoc_msg_setmin(MANDOCERR_STYLE);

                        break;
                case 4:
                        break;
                case 4:

-                       curp->wlevel = MANDOCLEVEL_ERROR;
+                       mandoc_msg_setmin(MANDOCERR_WARNING);

                        break;
                case 5:
                        break;
                case 5:

-                       curp->wlevel = MANDOCLEVEL_UNSUPP;
+                       mandoc_msg_setmin(MANDOCERR_ERROR);

                        break;
                case 6:
                        break;
                case 6:

-                       curp->wlevel = MANDOCLEVEL_BADARG;
+                       mandoc_msg_setmin(MANDOCERR_UNSUPP);
+                       break;
+               case 7:
+                       mandoc_msg_setmin(MANDOCERR_BADARG);
+                       break;
+               case 8:
+                       mandoc_msg_setmin(MANDOCERR_BASE);
+                       *os_e = MANDOC_OS_OPENBSD;
+                       break;
+               case 9:
+                       mandoc_msg_setmin(MANDOCERR_BASE);
+                       *os_e = MANDOC_OS_NETBSD;

                        break;
                default:
                        break;
                default:

-                       warnx("-W %s: Bad argument", o);
-                       return 0;
+                       mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
+                       return -1;

                }
        }
                }
        }

-       return 1;
+       return 0;

 }
 
 }
 

+/*
+ * Wait until moved to the foreground,
+ * then fork the pager and wait for the user to close it.
+ */

 static void
 static void

-mmsg(enum mandocerr t, enum mandoclevel lvl,
-               const char *file, int line, int col, const char *msg)
+run_pager(struct outstate *outst, char *tag_target)

 {
 {

-       const char      *mparse_msg;
+       int      signum, status;
+       pid_t    man_pgid, tc_pgid;
+       pid_t    pager_pid, wait_pid;
+
+       man_pgid = getpgid(0);
+       outst->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(STDOUT_FILENO);
+               if (tc_pgid != man_pgid) {
+                       if (tc_pgid == pager_pid) {
+                               (void)tcsetpgrp(STDOUT_FILENO, man_pgid);
+                               if (signum == SIGTTIN)
+                                       continue;
+                       } else
+                               outst->tag_files->tcpgid = tc_pgid;
+                       kill(0, signum);
+                       continue;
+               }

 
 

-       fprintf(stderr, "%s: %s:", getprogname(),
-           file == NULL ? "<stdin>" : file);
+               /* Once in the foreground, activate the pager. */

 
 

-       if (line)
-               fprintf(stderr, "%d:%d:", line, col + 1);
+               if (pager_pid) {
+                       (void)tcsetpgrp(STDOUT_FILENO, pager_pid);
+                       kill(pager_pid, SIGCONT);
+               } else
+                       pager_pid = spawn_pager(outst, tag_target);

 
 

-       fprintf(stderr, " %s", mparse_strlevel(lvl));
+               /* Wait for the pager to stop or exit. */

 
 

-       if (NULL != (mparse_msg = mparse_strerror(t)))
-               fprintf(stderr, ": %s", mparse_msg);
+               while ((wait_pid = waitpid(pager_pid, &status,
+                   WUNTRACED)) == -1 && errno == EINTR)
+                       continue;

 
 

-       if (msg)
-               fprintf(stderr, ": %s", msg);
+               if (wait_pid == -1) {
+                       mandoc_msg(MANDOCERR_WAIT, 0, 0,
+                           "%s", strerror(errno));
+                       break;
+               }
+               if (!WIFSTOPPED(status))
+                       break;

 
 

-       fputc('\n', stderr);
+               signum = WSTOPSIG(status);
+       }

 }
 
 static pid_t
 }
 
 static pid_t

-spawn_pager(struct tag_files *tag_files)
+spawn_pager(struct outstate *outst, char *tag_target)

 {
        const struct timespec timeout = { 0, 100000000 };  /* 0.1s */
 #define MAX_PAGER_ARGS 16
        char            *argv[MAX_PAGER_ARGS];
        const char      *pager;
        char            *cp;
 {
        const struct timespec timeout = { 0, 100000000 };  /* 0.1s */
 #define MAX_PAGER_ARGS 16
        char            *argv[MAX_PAGER_ARGS];
        const char      *pager;
        char            *cp;

+       size_t           wordlen;
+#if HAVE_LESS_T

        size_t           cmdlen;
        size_t           cmdlen;

-       int              argc;
+#endif
+       int              argc, use_ofn;

        pid_t            pager_pid;
 
        pid_t            pager_pid;
 

+       assert(outst->tag_files->ofd == -1);
+       assert(outst->tag_files->tfs == NULL);
+

        pager = getenv("MANPAGER");
        if (pager == NULL || *pager == '\0')
                pager = getenv("PAGER");
        if (pager == NULL || *pager == '\0')
        pager = getenv("MANPAGER");
        if (pager == NULL || *pager == '\0')
                pager = getenv("PAGER");
        if (pager == NULL || *pager == '\0')

-               pager = "more -s";
-       cp = mandoc_strdup(pager);
+               pager = BINM_PAGER;

 
        /*
         * Parse the pager command into words.
 
        /*
         * Parse the pager command into words.


@@ -1055,58 +1308,73 @@ spawn_pager(struct tag_files *tag_files)
         */
 
        argc = 0;
         */
 
        argc = 0;

-       while (argc + 4 < MAX_PAGER_ARGS) {
-               argv[argc++] = cp;
-               cp = strchr(cp, ' ');
-               if (cp == NULL)
-                       break;
-               *cp++ = '\0';
-               while (*cp == ' ')
-                       cp++;
-               if (*cp == '\0')
-                       break;
+       while (*pager != '\0' && argc + 5 < MAX_PAGER_ARGS) {
+               wordlen = strcspn(pager, " ");
+               argv[argc++] = mandoc_strndup(pager, wordlen);
+               pager += wordlen;
+               while (*pager == ' ')
+                       pager++;

        }
 
        /* For less(1), use the tag file. */
 
        }
 
        /* For less(1), use the tag file. */
 

-       if ((cmdlen = strlen(argv[0])) >= 4) {
+       use_ofn = 1;
+#if HAVE_LESS_T
+       if (*outst->tag_files->tfn != '\0' &&
+           (cmdlen = strlen(argv[0])) >= 4) {

                cp = argv[0] + cmdlen - 4;
                if (strcmp(cp, "less") == 0) {
                        argv[argc++] = mandoc_strdup("-T");
                cp = argv[0] + cmdlen - 4;
                if (strcmp(cp, "less") == 0) {
                        argv[argc++] = mandoc_strdup("-T");

-                       argv[argc++] = tag_files->tfn;
+                       argv[argc++] = mandoc_strdup(outst->tag_files->tfn);
+                       if (tag_target != NULL) {
+                               argv[argc++] = mandoc_strdup("-t");
+                               argv[argc++] = mandoc_strdup(tag_target);
+                               use_ofn = 0;
+                       }

                }
        }
                }
        }

-       argv[argc++] = tag_files->ofn;
+#endif
+       if (use_ofn) {
+               if (outst->outtype == OUTT_HTML && tag_target != NULL)
+                       mandoc_asprintf(&argv[argc], "file://%s#%s",
+                           outst->tag_files->ofn, tag_target);
+               else
+                       argv[argc] = mandoc_strdup(outst->tag_files->ofn);
+               argc++;
+       }

        argv[argc] = NULL;
 
        switch (pager_pid = fork()) {
        case -1:
        argv[argc] = NULL;
 
        switch (pager_pid = fork()) {
        case -1:

-               err((int)MANDOCLEVEL_SYSERR, "fork");
+               mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
+               exit(mandoc_msg_getrc());

        case 0:
                break;
        default:
        case 0:
                break;
        default:

+               while (argc > 0)
+                       free(argv[--argc]);

                (void)setpgid(pager_pid, 0);
                (void)setpgid(pager_pid, 0);

-               (void)tcsetpgrp(tag_files->ofd, pager_pid);
+               (void)tcsetpgrp(STDOUT_FILENO, pager_pid);

 #if HAVE_PLEDGE
 #if HAVE_PLEDGE

-               if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
-                       err((int)MANDOCLEVEL_SYSERR, "pledge");
+               if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
+                       mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+                           "%s", strerror(errno));
+                       exit(mandoc_msg_getrc());
+               }

 #endif
 #endif

-               tag_files->pager_pid = pager_pid;
+               outst->tag_files->pager_pid = pager_pid;

                return 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. */
+       /*
+        * The child process becomes the pager.
+        * Do not start it before controlling the terminal.
+        */

 
        while (tcgetpgrp(STDOUT_FILENO) != getpid())
                nanosleep(&timeout, NULL);
 
        execvp(argv[0], argv);
 
        while (tcgetpgrp(STDOUT_FILENO) != getpid())
                nanosleep(&timeout, NULL);
 
        execvp(argv[0], argv);

-       err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
+       mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
+       _exit(mandoc_msg_getrc());

 }
 }