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freebsd-dev/contrib/mandoc/main.c
Baptiste Daroussin 45a5aec3f1 Update mandoc to cvs snapshot 2019-07-23 
This snapshot among other things includes a fix for a crash of mandoc with empty
tbl reported by rea@ (his regression test has been incorporated upstream)

MFC after:	3 weeks
2019-07-26 10:00:33 +00:00

1283 lines
29 KiB
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/* $Id: main.c,v 1.332 2019/07/19 20:27:25 schwarze Exp $ */
/*
* Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010-2012, 2014-2019 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 AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* 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
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/param.h> /* MACHINE */
#include <sys/stat.h>
#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>
#if HAVE_SANDBOX_INIT
#include <sandbox.h>
#endif
#include <signal.h>
#include <stdio.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 "mandoc_xr.h"
#include "roff.h"
#include "mdoc.h"
#include "man.h"
#include "mandoc_parse.h"
#include "tag.h"
#include "main.h"
#include "manconf.h"
#include "mansearch.h"
enum outmode {
OUTMODE_DEF = 0,
OUTMODE_FLN,
OUTMODE_LST,
OUTMODE_ALL,
OUTMODE_ONE
};
enum outt {
OUTT_ASCII = 0, /* -Tascii */
OUTT_LOCALE, /* -Tlocale */
OUTT_UTF8, /* -Tutf8 */
OUTT_TREE, /* -Ttree */
OUTT_MAN, /* -Tman */
OUTT_HTML, /* -Thtml */
OUTT_MARKDOWN, /* -Tmarkdown */
OUTT_LINT, /* -Tlint */
OUTT_PS, /* -Tps */
OUTT_PDF /* -Tpdf */
};
struct curparse {
struct mparse *mp;
struct manoutput *outopts; /* output options */
void *outdata; /* data for output */
char *os_s; /* operating system for display */
int wstop; /* stop after a file with a warning */
enum mandoc_os os_e; /* check base system conventions */
enum outt outtype; /* which output to use */
};
int mandocdb(int, char *[]);
static void check_xr(void);
static int fs_lookup(const struct manpaths *,
size_t ipath, const char *,
const char *, const char *,
struct manpage **, size_t *);
static int fs_search(const struct mansearch *,
const struct manpaths *, int, char**,
struct manpage **, size_t *);
static void outdata_alloc(struct curparse *);
static void parse(struct curparse *, int, const char *);
static void passthrough(int, int);
static pid_t spawn_pager(struct tag_files *);
static void usage(enum argmode) __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};
int
main(int argc, char *argv[])
{
struct manconf conf;
struct mansearch search;
struct curparse curp;
struct winsize ws;
struct tag_files *tag_files;
struct manpage *res, *resp;
const char *progname, *sec, *thisarg;
char *conf_file, *defpaths, *auxpaths;
char *oarg, *tagarg;
unsigned char *uc;
size_t i, sz, ssz;
int prio, best_prio;
enum outmode outmode;
int fd, startdir;
int show_usage;
int options;
int use_pager;
int status, signum;
int c;
pid_t pager_pid, tc_pgid, man_pgid, pid;
#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
mandoc_msg_setoutfile(stderr);
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) {
mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
return mandoc_msg_getrc();
}
#endif
#if HAVE_SANDBOX_INIT
if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
#endif
/* Search options. */
memset(&conf, 0, sizeof(conf));
conf_file = defpaths = NULL;
auxpaths = NULL;
memset(&search, 0, sizeof(struct mansearch));
search.outkey = "Nd";
oarg = NULL;
if (strcmp(progname, BINM_MAN) == 0)
search.argmode = ARG_NAME;
else if (strcmp(progname, BINM_APROPOS) == 0)
search.argmode = ARG_EXPR;
else if (strcmp(progname, BINM_WHATIS) == 0)
search.argmode = ARG_WORD;
else if (strncmp(progname, "help", 4) == 0)
search.argmode = ARG_NAME;
else
search.argmode = ARG_FILE;
/* Parser and formatter options. */
memset(&curp, 0, sizeof(struct curparse));
curp.outtype = OUTT_LOCALE;
curp.outopts = &conf.output;
options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
use_pager = 1;
tag_files = NULL;
show_usage = 0;
outmode = OUTMODE_DEF;
while ((c = getopt(argc, argv,
"aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
if (c == 'i' && search.argmode == ARG_EXPR) {
optind--;
break;
}
switch (c) {
case 'a':
outmode = OUTMODE_ALL;
break;
case 'C':
conf_file = optarg;
break;
case 'c':
use_pager = 0;
break;
case 'f':
search.argmode = ARG_WORD;
break;
case 'h':
conf.output.synopsisonly = 1;
use_pager = 0;
outmode = OUTMODE_ALL;
break;
case 'I':
if (strncmp(optarg, "os=", 3) != 0) {
mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
"-I %s", optarg);
return mandoc_msg_getrc();
}
if (curp.os_s != NULL) {
mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
"-I %s", optarg);
return mandoc_msg_getrc();
}
curp.os_s = mandoc_strdup(optarg + 3);
break;
case 'K':
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 'l':
search.argmode = ARG_FILE;
outmode = OUTMODE_ALL;
break;
case 'M':
#ifdef __FreeBSD__
defpaths = strdup(optarg);
if (defpaths == NULL)
err(1, "strdup");
#else
defpaths = optarg;
#endif
break;
case 'm':
auxpaths = optarg;
break;
case 'O':
oarg = optarg;
break;
case 'S':
search.arch = optarg;
break;
case 's':
search.sec = optarg;
break;
case 'T':
if (strcmp(optarg, "ascii") == 0)
curp.outtype = OUTT_ASCII;
else if (strcmp(optarg, "lint") == 0) {
curp.outtype = OUTT_LINT;
mandoc_msg_setoutfile(stdout);
mandoc_msg_setmin(MANDOCERR_BASE);
} else if (strcmp(optarg, "tree") == 0)
curp.outtype = OUTT_TREE;
else if (strcmp(optarg, "man") == 0)
curp.outtype = OUTT_MAN;
else if (strcmp(optarg, "html") == 0)
curp.outtype = OUTT_HTML;
else if (strcmp(optarg, "markdown") == 0)
curp.outtype = OUTT_MARKDOWN;
else if (strcmp(optarg, "utf8") == 0)
curp.outtype = OUTT_UTF8;
else if (strcmp(optarg, "locale") == 0)
curp.outtype = OUTT_LOCALE;
else if (strcmp(optarg, "ps") == 0)
curp.outtype = OUTT_PS;
else if (strcmp(optarg, "pdf") == 0)
curp.outtype = OUTT_PDF;
else {
mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
"-T %s", optarg);
return mandoc_msg_getrc();
}
break;
case 'W':
if (woptions(&curp, optarg) == -1)
return mandoc_msg_getrc();
break;
case 'w':
outmode = OUTMODE_FLN;
break;
default:
show_usage = 1;
break;
}
}
if (show_usage)
usage(search.argmode);
/* Postprocess options. */
if (outmode == OUTMODE_DEF) {
switch (search.argmode) {
case ARG_FILE:
outmode = OUTMODE_ALL;
use_pager = 0;
break;
case ARG_NAME:
outmode = OUTMODE_ONE;
break;
default:
outmode = OUTMODE_LST;
break;
}
}
if (oarg != NULL) {
if (outmode == OUTMODE_LST)
search.outkey = oarg;
else {
while (oarg != NULL) {
if (manconf_output(&conf.output,
strsep(&oarg, ","), 0) == -1)
return mandoc_msg_getrc();
}
}
}
if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
options |= MPARSE_VALIDATE;
if (outmode == OUTMODE_FLN ||
outmode == OUTMODE_LST ||
!isatty(STDOUT_FILENO))
use_pager = 0;
if (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 (use_pager == 0) {
if (pledge("stdio rpath", NULL) == -1) {
mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
"%s", strerror(errno));
return mandoc_msg_getrc();
}
}
#endif
/* Parse arguments. */
if (argc > 0) {
argc -= optind;
argv += optind;
}
resp = NULL;
/*
* Quirks for help(1)
* and for a man(1) section argument without -s.
*/
if (search.argmode == ARG_NAME) {
if (*progname == 'h') {
if (argc == 0) {
argv = help_argv;
argc = 1;
}
} else if (argc > 1 &&
((uc = (unsigned char *)argv[0]) != NULL) &&
((isdigit(uc[0]) && (uc[1] == '\0' ||
isalpha(uc[1]))) ||
(uc[0] == 'n' && uc[1] == '\0'))) {
search.sec = (char *)uc;
argv++;
argc--;
}
if (search.arch == NULL)
search.arch = getenv("MACHINE");
#ifdef MACHINE
if (search.arch == NULL)
search.arch = MACHINE;
#endif
}
/*
* Use the first argument for -O tag in addition to
* using it as a search term for man(1) or apropos(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;
}
/* man(1), whatis(1), apropos(1) */
if (search.argmode != ARG_FILE) {
if (search.argmode == ARG_NAME &&
outmode == OUTMODE_ONE)
search.firstmatch = 1;
#ifdef __FreeBSD__
/*
* Use manpath(1) to populate defpaths if -M is not specified.
* Don't treat any failures as fatal.
*/
if (defpaths == NULL) {
FILE *fp;
size_t linecap = 0;
ssize_t linelen;
if ((fp = popen("/usr/bin/manpath -q", "r")) != NULL) {
if ((linelen = getline(&defpaths,
&linecap, fp)) > 0) {
/* Strip trailing newline */
defpaths[linelen - 1] = '\0';
}
pclose(fp);
}
}
#endif
/* Access the mandoc database. */
manconf_parse(&conf, conf_file, defpaths, auxpaths);
#ifdef __FreeBSD__
free(defpaths);
#endif
if ( ! mansearch(&search, &conf.manpath,
argc, argv, &res, &sz))
usage(search.argmode);
if (sz == 0 && search.argmode == ARG_NAME)
(void)fs_search(&search, &conf.manpath,
argc, argv, &res, &sz);
if (search.argmode == ARG_NAME) {
for (c = 0; c < argc; c++) {
if (strchr(argv[c], '/') == NULL)
continue;
if (access(argv[c], R_OK) == -1) {
mandoc_msg_setinfilename(argv[c]);
mandoc_msg(MANDOCERR_BADARG_BAD,
0, 0, "%s", strerror(errno));
mandoc_msg_setinfilename(NULL);
continue;
}
res = mandoc_reallocarray(res,
sz + 1, sizeof(*res));
res[sz].file = mandoc_strdup(argv[c]);
res[sz].names = NULL;
res[sz].output = NULL;
res[sz].bits = 0;
res[sz].ipath = SIZE_MAX;
res[sz].sec = 10;
res[sz].form = FORM_SRC;
sz++;
}
}
if (sz == 0) {
if (search.argmode != ARG_NAME)
warnx("nothing appropriate");
mandoc_msg_setrc(MANDOCLEVEL_BADARG);
goto out;
}
/*
* 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 = 40;
} 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;
sec += strcspn(sec, "123456789");
if (sec[0] == '\0')
continue; /* No section at all. */
prio = sec_prios[sec[0] - '1'];
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 &&
(strlen(sec) <= ssz + 3 ||
strcmp(sec + strlen(sec) - ssz,
search.sec) != 0))
prio += 20; /* Wrong file ext. */
if (prio >= best_prio)
continue;
best_prio = prio;
resp = res + i;
}
}
/*
* 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.
*/
if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
goto out;
}
/* mandoc(1) */
#if HAVE_PLEDGE
if (use_pager) {
if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
"%s", strerror(errno));
return mandoc_msg_getrc();
}
} else {
if (pledge("stdio rpath", NULL) == -1) {
mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
"%s", strerror(errno));
return mandoc_msg_getrc();
}
}
#endif
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();
curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
if (argc < 1) {
if (use_pager) {
tag_files = tag_init();
if (tag_files != NULL)
tag_files->tagname = conf.output.tag;
}
thisarg = "<stdin>";
mandoc_msg_setinfilename(thisarg);
parse(&curp, STDIN_FILENO, thisarg);
mandoc_msg_setinfilename(NULL);
}
/*
* 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.
*/
startdir = open(".", O_RDONLY | O_DIRECTORY);
while (argc > 0) {
/*
* 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 != NULL) {
if (resp->ipath != SIZE_MAX)
(void)chdir(conf.manpath.paths[resp->ipath]);
else if (startdir != -1)
(void)fchdir(startdir);
thisarg = resp->file;
} else
thisarg = *argv;
mandoc_msg_setinfilename(thisarg);
fd = mparse_open(curp.mp, thisarg);
if (fd != -1) {
if (use_pager) {
use_pager = 0;
tag_files = tag_init();
if (tag_files != NULL)
tag_files->tagname = conf.output.tag;
}
if (resp == NULL || resp->form == FORM_SRC)
parse(&curp, fd, thisarg);
else
passthrough(fd, conf.output.synopsisonly);
if (ferror(stdout)) {
if (tag_files != NULL) {
mandoc_msg(MANDOCERR_WRITE, 0, 0,
"%s: %s", tag_files->ofn,
strerror(errno));
tag_unlink();
tag_files = NULL;
} else
mandoc_msg(MANDOCERR_WRITE, 0, 0,
"%s", strerror(errno));
break;
}
if (argc > 1 && curp.outtype <= OUTT_UTF8) {
if (curp.outdata == NULL)
outdata_alloc(&curp);
terminal_sepline(curp.outdata);
}
} else
mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
mandoc_msg_setinfilename(NULL);
if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
break;
if (resp != NULL)
resp++;
else
argv++;
if (--argc)
mparse_reset(curp.mp);
}
if (startdir != -1) {
(void)fchdir(startdir);
close(startdir);
}
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;
}
}
mandoc_xr_free();
mparse_free(curp.mp);
mchars_free();
out:
if (search.argmode != ARG_FILE) {
manconf_free(&conf);
mansearch_free(res, sz);
}
free(curp.os_s);
/*
* 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 (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) {
mandoc_msg(MANDOCERR_WAIT, 0, 0,
"%s", strerror(errno));
break;
}
if (!WIFSTOPPED(status))
break;
signum = WSTOPSIG(status);
}
tag_unlink();
} else if (curp.outtype != OUTT_LINT &&
(search.argmode == ARG_FILE || sz > 0))
mandoc_msg_summary();
return (int)mandoc_msg_getrc();
}
static void
usage(enum argmode argmode)
{
switch (argmode) {
case ARG_FILE:
fputs("usage: mandoc [-ac] [-I os=name] "
"[-K encoding] [-mdoc | -man] [-O options]\n"
"\t [-T output] [-W level] [file ...]\n", stderr);
break;
case ARG_NAME:
fputs("usage: man [-acfhklw] [-C file] [-M path] "
"[-m path] [-S subsection]\n"
"\t [[-s] section] name ...\n", stderr);
break;
case ARG_WORD:
fputs("usage: whatis [-afk] [-C file] "
"[-M path] [-m path] [-O outkey] [-S arch]\n"
"\t [-s section] name ...\n", stderr);
break;
case ARG_EXPR:
fputs("usage: apropos [-afk] [-C file] "
"[-M path] [-m path] [-O outkey] [-S arch]\n"
"\t [-s section] expression ...\n", stderr);
break;
}
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)
{
struct stat sb;
glob_t globinfo;
struct manpage *page;
char *file;
int globres;
enum form form;
form = FORM_SRC;
mandoc_asprintf(&file, "%s/man%s/%s.%s",
paths->paths[ipath], sec, name, sec);
if (stat(file, &sb) != -1)
goto found;
free(file);
mandoc_asprintf(&file, "%s/cat%s/%s.0",
paths->paths[ipath], sec, name);
if (stat(file, &sb) != -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 (stat(file, &sb) != -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)
mandoc_msg(MANDOCERR_GLOB, 0, 0,
"%s: %s", file, strerror(errno));
free(file);
if (globres == 0)
file = mandoc_strdup(*globinfo.gl_pathv);
globfree(&globinfo);
if (globres == 0) {
if (stat(file, &sb) != -1)
goto found;
free(file);
}
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]);
if (res == NULL) {
free(file);
return 0;
}
*res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
page = *res + (*ressz - 1);
page->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;
return 0;
}
static int
fs_search(const struct mansearch *cfg, const struct manpaths *paths,
int argc, char **argv, 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]);
size_t ipath, isec, lastsz;
assert(cfg->argmode == ARG_NAME);
if (res != NULL)
*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) != -1 &&
cfg->firstmatch)
return 0;
} else for (isec = 0; isec < nsec; isec++)
if (fs_lookup(paths, ipath, sections[isec],
cfg->arch, *argv, res, ressz) != -1 &&
cfg->firstmatch)
return 0;
}
if (res != NULL && *ressz == lastsz &&
strchr(*argv, '/') == NULL) {
if (cfg->arch != NULL &&
arch_valid(cfg->arch, OSENUM) == 0)
warnx("Unknown architecture \"%s\".",
cfg->arch);
else if (cfg->sec == NULL)
warnx("No entry for %s in the manual.",
*argv);
else
warnx("No entry for %s in section %s "
"of the manual.", *argv, cfg->sec);
}
lastsz = *ressz;
argv++;
argc--;
}
return -1;
}
static void
parse(struct curparse *curp, int fd, const char *file)
{
struct roff_meta *meta;
/* Begin by parsing the file itself. */
assert(file);
assert(fd >= 0);
mparse_readfd(curp->mp, fd, file);
if (fd != STDIN_FILENO)
close(fd);
/*
* With -Wstop and warnings or errors of at least the requested
* level, do not produce output.
*/
if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
return;
if (curp->outdata == NULL)
outdata_alloc(curp);
else if (curp->outtype == OUTT_HTML)
html_reset(curp);
mandoc_xr_reset();
meta = mparse_result(curp->mp);
/* Execute the out device, if it exists. */
if (meta->macroset == MACROSET_MDOC) {
switch (curp->outtype) {
case OUTT_HTML:
html_mdoc(curp->outdata, meta);
break;
case OUTT_TREE:
tree_mdoc(curp->outdata, meta);
break;
case OUTT_MAN:
man_mdoc(curp->outdata, meta);
break;
case OUTT_PDF:
case OUTT_ASCII:
case OUTT_UTF8:
case OUTT_LOCALE:
case OUTT_PS:
terminal_mdoc(curp->outdata, meta);
break;
case OUTT_MARKDOWN:
markdown_mdoc(curp->outdata, meta);
break;
default:
break;
}
}
if (meta->macroset == MACROSET_MAN) {
switch (curp->outtype) {
case OUTT_HTML:
html_man(curp->outdata, meta);
break;
case OUTT_TREE:
tree_man(curp->outdata, meta);
break;
case OUTT_MAN:
mparse_copy(curp->mp);
break;
case OUTT_PDF:
case OUTT_ASCII:
case OUTT_UTF8:
case OUTT_LOCALE:
case OUTT_PS:
terminal_man(curp->outdata, meta);
break;
default:
break;
}
}
if (mandoc_msg_getmin() < MANDOCERR_STYLE)
check_xr();
}
static void
check_xr(void)
{
static struct manpaths paths;
struct mansearch search;
struct mandoc_xr *xr;
size_t sz;
if (paths.sz == 0)
manpath_base(&paths);
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, 1, &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
outdata_alloc(struct curparse *curp)
{
switch (curp->outtype) {
case OUTT_HTML:
curp->outdata = html_alloc(curp->outopts);
break;
case OUTT_UTF8:
curp->outdata = utf8_alloc(curp->outopts);
break;
case OUTT_LOCALE:
curp->outdata = locale_alloc(curp->outopts);
break;
case OUTT_ASCII:
curp->outdata = ascii_alloc(curp->outopts);
break;
case OUTT_PDF:
curp->outdata = pdf_alloc(curp->outopts);
break;
case OUTT_PS:
curp->outdata = ps_alloc(curp->outopts);
break;
default:
break;
}
}
static void
passthrough(int fd, int synopsis_only)
{
const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
const char synr[] = "SYNOPSIS";
FILE *stream;
char *line, *cp;
size_t linesz;
ssize_t len, written;
int lno, print;
stream = NULL;
line = NULL;
linesz = 0;
if (fflush(stdout) == EOF) {
mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
goto done;
}
if ((stream = fdopen(fd, "r")) == NULL) {
close(fd);
mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
goto done;
}
lno = print = 0;
while ((len = getline(&line, &linesz, stream)) != -1) {
lno++;
cp = line;
if (synopsis_only) {
if (print) {
if ( ! isspace((unsigned char)*cp))
goto done;
while (isspace((unsigned char)*cp)) {
cp++;
len--;
}
} else {
if (strcmp(cp, synb) == 0 ||
strcmp(cp, synr) == 0)
print = 1;
continue;
}
}
for (; len > 0; len -= written) {
if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
mandoc_msg(MANDOCERR_WRITE, 0, 0,
"%s", strerror(errno));
goto done;
}
}
}
if (ferror(stream))
mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
done:
free(line);
if (stream != NULL)
fclose(stream);
}
static int
woptions(struct curparse *curp, char *arg)
{
char *v, *o;
const char *toks[11];
toks[0] = "stop";
toks[1] = "all";
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:
curp->wstop = 1;
break;
case 1:
case 2:
mandoc_msg_setmin(MANDOCERR_BASE);
break;
case 3:
mandoc_msg_setmin(MANDOCERR_STYLE);
break;
case 4:
mandoc_msg_setmin(MANDOCERR_WARNING);
break;
case 5:
mandoc_msg_setmin(MANDOCERR_ERROR);
break;
case 6:
mandoc_msg_setmin(MANDOCERR_UNSUPP);
break;
case 7:
mandoc_msg_setmin(MANDOCERR_BADARG);
break;
case 8:
mandoc_msg_setmin(MANDOCERR_BASE);
curp->os_e = MANDOC_OS_OPENBSD;
break;
case 9:
mandoc_msg_setmin(MANDOCERR_BASE);
curp->os_e = MANDOC_OS_NETBSD;
break;
default:
mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
return -1;
}
}
return 0;
}
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;
#if HAVE_LESS_T
size_t cmdlen;
#endif
int argc, use_ofn;
pid_t pager_pid;
pager = getenv("MANPAGER");
if (pager == NULL || *pager == '\0')
pager = getenv("PAGER");
if (pager == NULL || *pager == '\0')
pager = "less -s";
cp = mandoc_strdup(pager);
/*
* Parse the pager command into words.
* Intentionally do not do anything fancy here.
*/
argc = 0;
while (argc + 5 < MAX_PAGER_ARGS) {
argv[argc++] = cp;
cp = strchr(cp, ' ');
if (cp == NULL)
break;
*cp++ = '\0';
while (*cp == ' ')
cp++;
if (*cp == '\0')
break;
}
/* For less(1), use the tag file. */
use_ofn = 1;
#if HAVE_LESS_T
if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
cp = argv[0] + cmdlen - 4;
if (strcmp(cp, "less") == 0) {
argv[argc++] = mandoc_strdup("-T");
argv[argc++] = tag_files->tfn;
if (tag_files->tagname != NULL) {
argv[argc++] = mandoc_strdup("-t");
argv[argc++] = tag_files->tagname;
use_ofn = 0;
}
}
}
#endif
if (use_ofn)
argv[argc++] = tag_files->ofn;
argv[argc] = NULL;
switch (pager_pid = fork()) {
case -1:
mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
exit(mandoc_msg_getrc());
case 0:
break;
default:
(void)setpgid(pager_pid, 0);
(void)tcsetpgrp(tag_files->ofd, pager_pid);
#if HAVE_PLEDGE
if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
"%s", strerror(errno));
exit(mandoc_msg_getrc());
}
#endif
tag_files->pager_pid = pager_pid;
return pager_pid;
}
/* The child process becomes the pager. */
if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
_exit(mandoc_msg_getrc());
}
close(tag_files->ofd);
assert(tag_files->tfd == -1);
/* Do not start the pager before controlling the terminal. */
while (tcgetpgrp(STDOUT_FILENO) != getpid())
nanosleep(&timeout, NULL);
execvp(argv[0], argv);
mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
_exit(mandoc_msg_getrc());
}
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