mandoc/main.c - diff

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Diff for /mandoc/main.c between version 1.256 and 1.276

version 1.256, 2015/11/07 14:22:29

version 1.276, 2016/09/18 15:22:08

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

Line 27

#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 <time.h>

#include <unistd.h>

#include "mandoc_aux.h"

Line 46

Line 51

#include "manconf.h"

#include "mansearch.h"

#if !defined(__GNUC__) || (__GNUC__ < 2)

# if !defined(lint)

# define __attribute__(x)

# endif

#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */

enum outmode {

OUTMODE_DEF = 0,

OUTMODE_FLN,

Line 82 struct curparse {

Line 81 struct curparse {

struct manoutput *outopts; /* output options */

};

int mandocdb(int, char *[]);

static int fs_lookup(const struct manpaths *,

size_t ipath, const char *,

const char *, const char *,

Line 90 static void fs_search(const struct mansearch *,

Line 92 static void fs_search(const struct mansearch *,

const struct manpaths *, int, char**,

struct manpage **, size_t *);

static int koptions(int *, char *);

#if HAVE_SQLITE3

int mandocdb(int, char**);

#endif

static int 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 *);

Line 122 main(int argc, char *argv[])

unsigned char *uc;

struct manpage *res, *resp;

char *conf_file, *defpaths;

size_t isec, i, sz;

const char *sec;

size_t i, sz;

int prio, best_prio;

char sec;

enum mandoclevel rctmp;

enum outmode outmode;

int fd;

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();

Line 145 main(int argc, char *argv[])

Line 146 main(int argc, char *argv[])

setprogname(progname);

#endif

#if HAVE_SQLITE3

if (strncmp(progname, "mandocdb", 8) == 0 ||

strcmp(progname, BINM_MAKEWHATIS) == 0)

return mandocdb(argc, argv);

#endif

#if HAVE_PLEDGE

if (pledge("stdio rpath tmppath proc exec flock", NULL) == -1)

if (pledge("stdio rpath tmppath tty proc exec flock", NULL) == -1)

err((int)MANDOCLEVEL_SYSERR, "pledge");

#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));

Line 296 main(int argc, char *argv[])

Line 300 main(int argc, char *argv[])

use_pager = 0;

#if HAVE_PLEDGE

if (!use_pager && pledge("stdio rpath flock", NULL) == -1)

if (!use_pager)

err((int)MANDOCLEVEL_SYSERR, "pledge");

if (pledge("stdio rpath flock", NULL) == -1)

err((int)MANDOCLEVEL_SYSERR, "pledge");

#endif

/* Parse arguments. */

Line 341 main(int argc, char *argv[])

Line 346 main(int argc, char *argv[])

/* man(1), whatis(1), apropos(1) */

if (search.argmode != ARG_FILE) {

if (argc == 0)

usage(search.argmode);

if (search.argmode == ARG_NAME &&

outmode == OUTMODE_ONE)

search.firstmatch = 1;

Line 351 main(int argc, char *argv[])

Line 353 main(int argc, char *argv[])

/* Access the mandoc database. */

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

#if HAVE_SQLITE3

mansearch_setup(1);

if ( ! mansearch(&search, &conf.manpath,

argc, argv, &res, &sz))

usage(search.argmode);

#else

if (search.argmode != ARG_NAME) {

fputs("mandoc: database support not compiled in\n",

stderr);

return (int)MANDOCLEVEL_BADARG;

}

sz = 0;

#endif

if (sz == 0) {

if (search.argmode == ARG_NAME)

Line 386 main(int argc, char *argv[])

Line 378 main(int argc, char *argv[])

if (outmode == OUTMODE_ONE) {

argc = 1;

best_prio = 10;

best_prio = 20;

} else if (outmode == OUTMODE_ALL)

argc = (int)sz;

Line 402 main(int argc, char *argv[])

Line 394 main(int argc, char *argv[])

res[i].output);

else if (outmode == OUTMODE_ONE) {

/* Search for the best section. */

isec = strcspn(res[i].file, "123456789");

sec = res[i].file;

sec = res[i].file[isec];

sec += strcspn(sec, "123456789");

if ('\0' == sec)

if (sec[0] == '\0')

continue;

prio = sec_prios[sec - '1'];

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

if (sec[1] != '/')

prio += 10;

if (prio >= best_prio)

continue;

best_prio = prio;

Line 427 main(int argc, char *argv[])

Line 421 main(int argc, char *argv[])

/* mandoc(1) */

#if HAVE_PLEDGE

if (pledge(use_pager ? "stdio rpath tmppath proc exec" :

if (use_pager) {

"stdio rpath", NULL) == -1)

if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)

err((int)MANDOCLEVEL_SYSERR, "pledge");

} else {

if (pledge("stdio rpath", NULL) == -1)

err((int)MANDOCLEVEL_SYSERR, "pledge");

}

#endif

if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths))

Line 451 main(int argc, char *argv[])

Line 449 main(int argc, char *argv[])

}

while (argc > 0) {

rctmp = mparse_open(curp.mp, &fd,

fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);

resp != NULL ? resp->file : *argv);

if (rc < rctmp)

rc = rctmp;

if (fd != -1) {

if (use_pager) {

tag_files = tag_init();

Line 464 main(int argc, char *argv[])

Line 458 main(int argc, char *argv[])

if (resp == NULL)

parse(&curp, fd, *argv);

else if (resp->form & FORM_SRC) {

else if (resp->form == FORM_SRC) {

/* For .so only; ignore failure. */

chdir(conf.manpath.paths[resp->ipath]);

parse(&curp, fd, resp->file);

Line 472 main(int argc, char *argv[])

Line 466 main(int argc, char *argv[])

passthrough(resp->file, fd,

conf.output.synopsisonly);

if (argc > 1 && curp.outtype <= OUTT_UTF8)

if (argc > 1 && curp.outtype <= OUTT_UTF8) {

ascii_sepline(curp.outdata);

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)

break;

Line 511 main(int argc, char *argv[])

Line 509 main(int argc, char *argv[])

out:

if (search.argmode != ARG_FILE) {

manconf_free(&conf);

#if HAVE_SQLITE3

mansearch_free(res, sz);

mansearch_setup(0);

#endif

}

free(defos);

Line 527 out:

Line 522 out:

if (tag_files != NULL) {

fclose(stdout);

tag_write();

waitpid(spawn_pager(tag_files), NULL, 0);

man_pgid = getpgid(0);

tag_files->tcpgid = man_pgid == getpid() ?

getpgid(getppid()) : man_pgid;

pager_pid = 0;

signum = SIGSTOP;

for (;;) {

/* Stop here until moved to the foreground. */

tc_pgid = tcgetpgrp(STDIN_FILENO);

if (tc_pgid != man_pgid) {

if (tc_pgid == pager_pid) {

(void)tcsetpgrp(STDIN_FILENO,

man_pgid);

if (signum == SIGTTIN)

continue;

} else

tag_files->tcpgid = tc_pgid;

kill(0, signum);

continue;

}

/* Once in the foreground, activate the pager. */

if (pager_pid) {

(void)tcsetpgrp(STDIN_FILENO, pager_pid);

kill(pager_pid, SIGCONT);

} else

pager_pid = spawn_pager(tag_files);

/* Wait for the pager to stop or exit. */

while ((pid = waitpid(pager_pid, &status,

WUNTRACED)) == -1 && errno == EINTR)

continue;

if (pid == -1) {

warn("wait");

rc = MANDOCLEVEL_SYSERR;

break;

}

if (!WIFSTOPPED(status))

break;

signum = WSTOPSIG(status);

}

tag_unlink();

}

Line 573 fs_lookup(const struct manpaths *paths, size_t ipath,

Line 613 fs_lookup(const struct manpaths *paths, size_t ipath,

glob_t globinfo;

struct manpage *page;

char *file;

int form, globres;

int globres;

enum form form;

form = FORM_SRC;

mandoc_asprintf(&file, "%s/man%s/%s.%s",

Line 611 fs_lookup(const struct manpaths *paths, size_t ipath,

Line 652 fs_lookup(const struct manpaths *paths, size_t ipath,

return 0;

found:

#if HAVE_SQLITE3

warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",

warnx("outdated mandoc.db lacks %s(%s) entry, run makewhatis %s",

name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);

name, sec, paths->paths[ipath]);

#endif

*res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));

page = *res + (*ressz - 1);

page->file = file;

Line 632 fs_search(const struct mansearch *cfg, const struct ma

Line 671 fs_search(const struct mansearch *cfg, const struct ma

int argc, char **argv, struct manpage **res, size_t *ressz)

{

const char *const sections[] =

{"1", "8", "6", "2", "3", "3p", "5", "7", "4", "9"};

{"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};

const size_t nsec = sizeof(sections)/sizeof(sections[0]);

size_t ipath, isec, lastsz;

Line 671 parse(struct curparse *curp, int fd, const char *file)

Line 710 parse(struct curparse *curp, int fd, const char *file)

/* Begin by parsing the file itself. */

assert(file);

assert(fd >= -1);

assert(fd >= 0);

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

if (fd != STDIN_FILENO)

close(fd);

if (rc < rctmp)

rc = rctmp;

Line 685 parse(struct curparse *curp, int fd, const char *file)

Line 726 parse(struct curparse *curp, int fd, const char *file)

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

return;

/* If unset, allocate output dev now (if applicable). */

if (curp->outdata == NULL)

outdata_alloc(curp);

if (curp->outdata == NULL) {

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;

}

mparse_result(curp->mp, &man, NULL);

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

Line 767 parse(struct curparse *curp, int fd, const char *file)

Line 784 parse(struct curparse *curp, int fd, const char *file)

}

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(const char *file, int fd, int synopsis_only)

{

const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";

Line 774 passthrough(const char *file, int fd, int synopsis_onl

Line 818 passthrough(const char *file, int fd, int synopsis_onl

FILE *stream;

const char *syscall;

char *line;

char *line, *cp;

size_t len, off;

size_t linesz;

ssize_t nw;

int print;

fflush(stdout);

line = NULL;

linesz = 0;

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

close(fd);

Line 788 passthrough(const char *file, int fd, int synopsis_onl

Line 832 passthrough(const char *file, int fd, int synopsis_onl

}

print = 0;

while ((line = fgetln(stream, &len)) != NULL) {

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

cp = line;

if (synopsis_only) {

if (print) {

if ( ! isspace((unsigned char)*line))

if ( ! isspace((unsigned char)*cp))

goto done;

while (len &&

while (isspace((unsigned char)*cp))

isspace((unsigned char)*line)) {

cp++;

line++;

len--;

}

} else {

if ((len == sizeof(synb) &&

if (strcmp(cp, synb) == 0 ||

! strncmp(line, synb, len - 1)) ||

strcmp(cp, synr) == 0)

(len == sizeof(synr) &&

! strncmp(line, synr, len - 1)))

print = 1;

continue;

}

for (off = 0; off < len; off += nw)

if (fputs(cp, stdout)) {

if ((nw = write(STDOUT_FILENO, line + off,

fclose(stream);

len - off)) == -1 || nw == 0) {

syscall = "fputs";

fclose(stream);

goto fail;

syscall = "write";

}

goto fail;

}

if (ferror(stream)) {

fclose(stream);

syscall = "fgetln";

syscall = "getline";

goto fail;

}

done:

free(line);

fclose(stream);

return;

fail:

free(line);

warn("%s: SYSERR: %s", file, syscall);

if (rc < MANDOCLEVEL_SYSERR)

rc = MANDOCLEVEL_SYSERR;

Line 920 woptions(struct curparse *curp, char *arg)

Line 960 woptions(struct curparse *curp, char *arg)

while (*arg) {

o = arg;

switch (getsubopt(&arg, UNCONST(toks), &v)) {

switch (getsubopt(&arg, (char * const *)toks, &v)) {

case 0:

curp->wstop = 1;

break;

Line 952 mmsg(enum mandocerr t, enum mandoclevel lvl,

Line 992 mmsg(enum mandocerr t, enum mandoclevel lvl,

{

const char *mparse_msg;

fprintf(stderr, "%s: %s:", getprogname(), file);

fprintf(stderr, "%s: %s:", getprogname(),

file == NULL ? "<stdin>" : file);

if (line)

fprintf(stderr, "%d:%d:", line, col + 1);

Line 971 mmsg(enum mandocerr t, enum mandoclevel lvl,

Line 1012 mmsg(enum mandocerr t, enum mandoclevel lvl,

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;

Line 1004 spawn_pager(struct tag_files *tag_files)

Line 1046 spawn_pager(struct tag_files *tag_files)

break;

}

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

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

if ((cmdlen = strlen(argv[0])) >= 4) {

cp = argv[0] + cmdlen - 4;

if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {

if (strcmp(cp, "less") == 0) {

argv[argc++] = mandoc_strdup("-T");

argv[argc++] = tag_files->tfn;

}

Line 1022 spawn_pager(struct tag_files *tag_files)

Line 1064 spawn_pager(struct tag_files *tag_files)

case 0:

break;

default:

(void)setpgid(pager_pid, 0);

(void)tcsetpgrp(STDIN_FILENO, pager_pid);

#if HAVE_PLEDGE

if (pledge("stdio rpath tmppath", NULL) == -1)

if (pledge("stdio rpath tmppath tty proc", NULL) == -1)

err((int)MANDOCLEVEL_SYSERR, "pledge");

#endif

tag_files->pager_pid = pager_pid;

return pager_pid;

}

Line 1035 spawn_pager(struct tag_files *tag_files)

Line 1080 spawn_pager(struct tag_files *tag_files)

err((int)MANDOCLEVEL_SYSERR, "pager stdout");

close(tag_files->ofd);

close(tag_files->tfd);

/* Do not start the pager before controlling the terminal. */

while (tcgetpgrp(STDIN_FILENO) != getpid())

nanosleep(&timeout, NULL);

execvp(argv[0], argv);

err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);

}

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