version 1.162, 2011/05/17 14:38:34 |
version 1.341, 2020/01/20 10:37:15 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org> |
* 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 |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
* copyright notice and this permission notice appear in all copies. |
* copyright notice and this permission notice appear in all copies. |
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#ifdef HAVE_CONFIG_H |
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#include "config.h" |
#include "config.h" |
#endif |
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#include <sys/types.h> |
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#include <sys/ioctl.h> |
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#include <sys/param.h> /* MACHINE */ |
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#include <sys/stat.h> |
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#include <sys/wait.h> |
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#include <assert.h> |
#include <assert.h> |
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#include <ctype.h> |
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#if HAVE_ERR |
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#include <err.h> |
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#endif |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <glob.h> |
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#include <limits.h> |
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#if HAVE_SANDBOX_INIT |
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#include <sandbox.h> |
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#endif |
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#include <signal.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdint.h> |
#include <stdint.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <termios.h> |
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#include <time.h> |
#include <unistd.h> |
#include <unistd.h> |
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#include "mandoc_aux.h" |
#include "mandoc.h" |
#include "mandoc.h" |
#include "main.h" |
#include "mandoc_xr.h" |
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#include "roff.h" |
#include "mdoc.h" |
#include "mdoc.h" |
#include "man.h" |
#include "man.h" |
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#include "mandoc_parse.h" |
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#include "tag.h" |
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#include "main.h" |
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#include "manconf.h" |
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#include "mansearch.h" |
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#if !defined(__GNUC__) || (__GNUC__ < 2) |
enum outmode { |
# if !defined(lint) |
OUTMODE_DEF = 0, |
# define __attribute__(x) |
OUTMODE_FLN, |
# endif |
OUTMODE_LST, |
#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ |
OUTMODE_ALL, |
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OUTMODE_ONE |
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}; |
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typedef void (*out_mdoc)(void *, const struct mdoc *); |
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typedef void (*out_man)(void *, const struct man *); |
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typedef void (*out_free)(void *); |
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enum outt { |
enum outt { |
OUTT_ASCII = 0, /* -Tascii */ |
OUTT_ASCII = 0, /* -Tascii */ |
OUTT_LOCALE, /* -Tlocale */ |
OUTT_LOCALE, /* -Tlocale */ |
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OUTT_UTF8, /* -Tutf8 */ |
OUTT_TREE, /* -Ttree */ |
OUTT_TREE, /* -Ttree */ |
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OUTT_MAN, /* -Tman */ |
OUTT_HTML, /* -Thtml */ |
OUTT_HTML, /* -Thtml */ |
OUTT_XHTML, /* -Txhtml */ |
OUTT_MARKDOWN, /* -Tmarkdown */ |
OUTT_LINT, /* -Tlint */ |
OUTT_LINT, /* -Tlint */ |
OUTT_PS, /* -Tps */ |
OUTT_PS, /* -Tps */ |
OUTT_PDF /* -Tpdf */ |
OUTT_PDF /* -Tpdf */ |
}; |
}; |
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struct curparse { |
struct outstate { |
struct mparse *mp; |
struct tag_files *tag_files; /* Tagging state variables. */ |
enum mandoclevel wlevel; /* ignore messages below this */ |
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int wstop; /* stop after a file with a warning */ |
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enum outt outtype; /* which output to use */ |
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out_mdoc outmdoc; /* mdoc output ptr */ |
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out_man outman; /* man output ptr */ |
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out_free outfree; /* free output ptr */ |
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void *outdata; /* data for output */ |
void *outdata; /* data for output */ |
char outopts[BUFSIZ]; /* buf of output opts */ |
int use_pager; |
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int wstop; /* stop after a file with a warning */ |
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int had_output; /* Some output was generated. */ |
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enum outt outtype; /* which output to use */ |
}; |
}; |
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static int moptions(enum mparset *, char *); |
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static void mmsg(enum mandocerr, enum mandoclevel, |
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const char *, int, int, const char *); |
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static void parse(struct curparse *, int, |
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const char *, enum mandoclevel *); |
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static int toptions(struct curparse *, char *); |
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static void usage(void) __attribute__((noreturn)); |
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static void version(void) __attribute__((noreturn)); |
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static int woptions(struct curparse *, char *); |
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static const char *progname; |
int mandocdb(int, char *[]); |
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static void check_xr(void); |
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static int fs_lookup(const struct manpaths *, |
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size_t ipath, const char *, |
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const char *, const char *, |
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struct manpage **, size_t *); |
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static int fs_search(const struct mansearch *, |
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const struct manpaths *, const char *, |
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struct manpage **, size_t *); |
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static void outdata_alloc(struct outstate *, struct manoutput *); |
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static void parse(struct mparse *, int, const char *, |
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struct outstate *, struct manoutput *); |
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static void passthrough(int, int); |
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static void process_onefile(struct mparse *, struct manpage *, |
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int, struct outstate *, struct manconf *); |
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static void run_pager(struct tag_files *); |
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static pid_t spawn_pager(struct tag_files *); |
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static void usage(enum argmode) __attribute__((__noreturn__)); |
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static int woptions(char *, enum mandoc_os *, int *); |
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static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9}; |
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static char help_arg[] = "help"; |
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static char *help_argv[] = {help_arg, NULL}; |
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int |
int |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
{ |
{ |
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struct manconf conf; /* Manpaths and output options. */ |
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struct outstate outst; /* Output state. */ |
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struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */ |
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struct mansearch search; /* Search options. */ |
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struct manpage *res; /* Complete list of search results. */ |
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struct manpage *resn; /* Search results for one name. */ |
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struct mparse *mp; /* Opaque parser object. */ |
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const char *conf_file; /* -C: alternate config file. */ |
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const char *os_s; /* -I: Operating system for display. */ |
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const char *progname, *sec; |
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char *defpaths; /* -M: override manpaths. */ |
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char *auxpaths; /* -m: additional manpaths. */ |
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char *oarg; /* -O: output option string. */ |
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char *tagarg; /* -O tag: default value. */ |
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unsigned char *uc; |
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size_t ressz; /* Number of elements in res[]. */ |
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size_t resnsz; /* Number of elements in resn[]. */ |
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size_t i, ib, ssz; |
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int options; /* Parser options. */ |
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int show_usage; /* Invalid argument: give up. */ |
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int prio, best_prio; |
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int startdir; |
int c; |
int c; |
struct curparse curp; |
enum mandoc_os os_e; /* Check base system conventions. */ |
enum mparset type; |
enum outmode outmode; /* According to command line. */ |
enum mandoclevel rc; |
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progname = strrchr(argv[0], '/'); |
#if HAVE_PROGNAME |
if (progname == NULL) |
progname = getprogname(); |
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#else |
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if (argc < 1) |
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progname = mandoc_strdup("mandoc"); |
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else if ((progname = strrchr(argv[0], '/')) == NULL) |
progname = argv[0]; |
progname = argv[0]; |
else |
else |
++progname; |
++progname; |
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setprogname(progname); |
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#endif |
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memset(&curp, 0, sizeof(struct curparse)); |
mandoc_msg_setoutfile(stderr); |
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if (strncmp(progname, "mandocdb", 8) == 0 || |
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strcmp(progname, BINM_MAKEWHATIS) == 0) |
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return mandocdb(argc, argv); |
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type = MPARSE_AUTO; |
#if HAVE_PLEDGE |
curp.outtype = OUTT_ASCII; |
if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) { |
curp.wlevel = MANDOCLEVEL_FATAL; |
mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno)); |
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return mandoc_msg_getrc(); |
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} |
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#endif |
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#if HAVE_SANDBOX_INIT |
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if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1) |
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errx((int)MANDOCLEVEL_SYSERR, "sandbox_init"); |
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#endif |
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/* LINTED */ |
/* Search options. */ |
while (-1 != (c = getopt(argc, argv, "m:O:T:VW:"))) |
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memset(&conf, 0, sizeof(conf)); |
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conf_file = NULL; |
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defpaths = auxpaths = NULL; |
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memset(&search, 0, sizeof(struct mansearch)); |
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search.outkey = "Nd"; |
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oarg = NULL; |
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if (strcmp(progname, BINM_MAN) == 0) |
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search.argmode = ARG_NAME; |
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else if (strcmp(progname, BINM_APROPOS) == 0) |
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search.argmode = ARG_EXPR; |
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else if (strcmp(progname, BINM_WHATIS) == 0) |
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search.argmode = ARG_WORD; |
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else if (strncmp(progname, "help", 4) == 0) |
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search.argmode = ARG_NAME; |
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else |
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search.argmode = ARG_FILE; |
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/* Parser options. */ |
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options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1; |
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os_e = MANDOC_OS_OTHER; |
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os_s = NULL; |
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/* Formatter options. */ |
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memset(&outst, 0, sizeof(outst)); |
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outst.tag_files = NULL; |
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outst.outtype = OUTT_LOCALE; |
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outst.use_pager = 1; |
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show_usage = 0; |
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outmode = OUTMODE_DEF; |
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while ((c = getopt(argc, argv, |
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"aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) { |
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if (c == 'i' && search.argmode == ARG_EXPR) { |
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optind--; |
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break; |
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} |
switch (c) { |
switch (c) { |
case ('m'): |
case 'a': |
if ( ! moptions(&type, optarg)) |
outmode = OUTMODE_ALL; |
return((int)MANDOCLEVEL_BADARG); |
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break; |
break; |
case ('O'): |
case 'C': |
(void)strlcat(curp.outopts, optarg, BUFSIZ); |
conf_file = optarg; |
(void)strlcat(curp.outopts, ",", BUFSIZ); |
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break; |
break; |
case ('T'): |
case 'c': |
if ( ! toptions(&curp, optarg)) |
outst.use_pager = 0; |
return((int)MANDOCLEVEL_BADARG); |
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break; |
break; |
case ('W'): |
case 'f': |
if ( ! woptions(&curp, optarg)) |
search.argmode = ARG_WORD; |
return((int)MANDOCLEVEL_BADARG); |
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break; |
break; |
case ('V'): |
case 'h': |
version(); |
conf.output.synopsisonly = 1; |
/* NOTREACHED */ |
outst.use_pager = 0; |
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outmode = OUTMODE_ALL; |
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break; |
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case 'I': |
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if (strncmp(optarg, "os=", 3) != 0) { |
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mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
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"-I %s", optarg); |
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return mandoc_msg_getrc(); |
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} |
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if (os_s != NULL) { |
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mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0, |
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"-I %s", optarg); |
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return mandoc_msg_getrc(); |
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} |
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os_s = optarg + 3; |
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break; |
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case 'K': |
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options &= ~(MPARSE_UTF8 | MPARSE_LATIN1); |
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if (strcmp(optarg, "utf-8") == 0) |
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options |= MPARSE_UTF8; |
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else if (strcmp(optarg, "iso-8859-1") == 0) |
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options |= MPARSE_LATIN1; |
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else if (strcmp(optarg, "us-ascii") != 0) { |
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mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
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"-K %s", optarg); |
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return mandoc_msg_getrc(); |
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} |
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break; |
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case 'k': |
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search.argmode = ARG_EXPR; |
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break; |
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case 'l': |
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search.argmode = ARG_FILE; |
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outmode = OUTMODE_ALL; |
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break; |
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case 'M': |
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defpaths = optarg; |
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break; |
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case 'm': |
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auxpaths = optarg; |
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break; |
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case 'O': |
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oarg = optarg; |
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break; |
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case 'S': |
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search.arch = optarg; |
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break; |
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case 's': |
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search.sec = optarg; |
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break; |
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case 'T': |
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if (strcmp(optarg, "ascii") == 0) |
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outst.outtype = OUTT_ASCII; |
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else if (strcmp(optarg, "lint") == 0) { |
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outst.outtype = OUTT_LINT; |
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mandoc_msg_setoutfile(stdout); |
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mandoc_msg_setmin(MANDOCERR_BASE); |
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} else if (strcmp(optarg, "tree") == 0) |
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outst.outtype = OUTT_TREE; |
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else if (strcmp(optarg, "man") == 0) |
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outst.outtype = OUTT_MAN; |
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else if (strcmp(optarg, "html") == 0) |
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outst.outtype = OUTT_HTML; |
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else if (strcmp(optarg, "markdown") == 0) |
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outst.outtype = OUTT_MARKDOWN; |
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else if (strcmp(optarg, "utf8") == 0) |
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outst.outtype = OUTT_UTF8; |
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else if (strcmp(optarg, "locale") == 0) |
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outst.outtype = OUTT_LOCALE; |
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else if (strcmp(optarg, "ps") == 0) |
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outst.outtype = OUTT_PS; |
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else if (strcmp(optarg, "pdf") == 0) |
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outst.outtype = OUTT_PDF; |
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else { |
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mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
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"-T %s", optarg); |
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return mandoc_msg_getrc(); |
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} |
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break; |
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case 'W': |
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if (woptions(optarg, &os_e, &outst.wstop) == -1) |
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return mandoc_msg_getrc(); |
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break; |
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case 'w': |
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outmode = OUTMODE_FLN; |
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break; |
default: |
default: |
usage(); |
show_usage = 1; |
/* NOTREACHED */ |
break; |
} |
} |
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} |
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curp.mp = mparse_alloc(type, curp.wlevel, mmsg, &curp); |
if (show_usage) |
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usage(search.argmode); |
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argc -= optind; |
/* Postprocess options. */ |
argv += optind; |
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rc = MANDOCLEVEL_OK; |
if (outmode == OUTMODE_DEF) { |
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switch (search.argmode) { |
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case ARG_FILE: |
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outmode = OUTMODE_ALL; |
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outst.use_pager = 0; |
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break; |
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case ARG_NAME: |
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outmode = OUTMODE_ONE; |
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break; |
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default: |
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outmode = OUTMODE_LST; |
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break; |
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} |
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} |
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if (NULL == *argv) |
if (oarg != NULL) { |
parse(&curp, STDIN_FILENO, "<stdin>", &rc); |
if (outmode == OUTMODE_LST) |
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search.outkey = oarg; |
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else { |
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while (oarg != NULL) { |
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if (manconf_output(&conf.output, |
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strsep(&oarg, ","), 0) == -1) |
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return mandoc_msg_getrc(); |
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} |
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} |
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} |
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while (*argv) { |
if (outst.outtype != OUTT_TREE || conf.output.noval == 0) |
parse(&curp, -1, *argv, &rc); |
options |= MPARSE_VALIDATE; |
if (MANDOCLEVEL_OK != rc && curp.wstop) |
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if (outmode == OUTMODE_FLN || |
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outmode == OUTMODE_LST || |
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!isatty(STDOUT_FILENO)) |
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outst.use_pager = 0; |
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if (outst.use_pager && |
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(conf.output.width == 0 || conf.output.indent == 0) && |
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 && |
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ws.ws_col > 1) { |
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if (conf.output.width == 0 && ws.ws_col < 79) |
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conf.output.width = ws.ws_col - 1; |
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if (conf.output.indent == 0 && ws.ws_col < 66) |
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conf.output.indent = 3; |
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} |
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#if HAVE_PLEDGE |
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if (outst.use_pager == 0) { |
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if (pledge("stdio rpath", NULL) == -1) { |
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mandoc_msg(MANDOCERR_PLEDGE, 0, 0, |
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"%s", strerror(errno)); |
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return mandoc_msg_getrc(); |
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} |
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} |
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#endif |
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/* Parse arguments. */ |
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if (argc > 0) { |
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argc -= optind; |
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argv += optind; |
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} |
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/* |
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* Quirks for help(1) and man(1), |
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* in particular for a section argument without -s. |
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*/ |
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|
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if (search.argmode == ARG_NAME) { |
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if (*progname == 'h') { |
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if (argc == 0) { |
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argv = help_argv; |
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argc = 1; |
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} |
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} else if (argc > 1 && |
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((uc = (unsigned char *)argv[0]) != NULL) && |
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((isdigit(uc[0]) && (uc[1] == '\0' || |
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isalpha(uc[1]))) || |
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(uc[0] == 'n' && uc[1] == '\0'))) { |
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search.sec = (char *)uc; |
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argv++; |
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argc--; |
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} |
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if (search.arch == NULL) |
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search.arch = getenv("MACHINE"); |
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#ifdef MACHINE |
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if (search.arch == NULL) |
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search.arch = MACHINE; |
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#endif |
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if (outmode == OUTMODE_ONE) |
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search.firstmatch = 1; |
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} |
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/* |
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* Use the first argument for -O tag in addition to |
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* using it as a search term for man(1) or apropos(1). |
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*/ |
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if (conf.output.tag != NULL && *conf.output.tag == '\0') { |
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tagarg = argc > 0 && search.argmode == ARG_EXPR ? |
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strchr(*argv, '=') : NULL; |
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conf.output.tag = tagarg == NULL ? *argv : tagarg + 1; |
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} |
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|
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/* Read the configuration file. */ |
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|
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if (search.argmode != ARG_FILE) |
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manconf_parse(&conf, conf_file, defpaths, auxpaths); |
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|
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/* man(1): Resolve each name individually. */ |
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|
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if (search.argmode == ARG_NAME) { |
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if (argc < 1) |
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usage(ARG_NAME); |
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for (res = NULL, ressz = 0; argc > 0; argc--, argv++) { |
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(void)mansearch(&search, &conf.manpath, |
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1, argv, &resn, &resnsz); |
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if (resnsz == 0) |
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(void)fs_search(&search, &conf.manpath, |
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*argv, &resn, &resnsz); |
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if (resnsz == 0 && strchr(*argv, '/') == NULL) { |
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if (search.arch != NULL && |
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arch_valid(search.arch, OSENUM) == 0) |
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warnx("Unknown architecture \"%s\".", |
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search.arch); |
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else if (search.sec != NULL) |
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warnx("No entry for %s in " |
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"section %s of the manual.", |
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*argv, search.sec); |
|
else |
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warnx("No entry for %s in " |
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"the manual.", *argv); |
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mandoc_msg_setrc(MANDOCLEVEL_BADARG); |
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continue; |
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} |
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if (resnsz == 0) { |
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if (access(*argv, R_OK) == -1) { |
|
mandoc_msg_setinfilename(*argv); |
|
mandoc_msg(MANDOCERR_BADARG_BAD, |
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0, 0, "%s", strerror(errno)); |
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mandoc_msg_setinfilename(NULL); |
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continue; |
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} |
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resnsz = 1; |
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resn = mandoc_calloc(resnsz, sizeof(*res)); |
|
resn->file = mandoc_strdup(*argv); |
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resn->ipath = SIZE_MAX; |
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resn->form = FORM_SRC; |
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} |
|
if (outmode != OUTMODE_ONE || resnsz == 1) { |
|
res = mandoc_reallocarray(res, |
|
ressz + resnsz, sizeof(*res)); |
|
memcpy(res + ressz, resn, |
|
sizeof(*resn) * resnsz); |
|
ressz += resnsz; |
|
continue; |
|
} |
|
|
|
/* Search for the best section. */ |
|
|
|
best_prio = 40; |
|
for (ib = i = 0; i < resnsz; i++) { |
|
sec = resn[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; |
|
ib = i; |
|
} |
|
res = mandoc_reallocarray(res, ressz + 1, |
|
sizeof(*res)); |
|
memcpy(res + ressz++, resn + ib, sizeof(*resn)); |
|
} |
|
|
|
/* apropos(1), whatis(1): Process the full search expression. */ |
|
|
|
} 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; |
|
} |
|
|
|
/* mandoc(1): Take command line arguments as file names. */ |
|
|
|
} else { |
|
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; |
|
} |
|
} |
|
|
|
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(); |
|
mp = mparse_alloc(options, os_e, os_s); |
|
|
|
/* |
|
* 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); |
|
|
|
for (i = 0; i < ressz; i++) { |
|
process_onefile(mp, res + i, startdir, &outst, &conf); |
|
if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) |
break; |
break; |
++argv; |
|
} |
} |
|
if (startdir != -1) { |
|
(void)fchdir(startdir); |
|
close(startdir); |
|
} |
|
|
if (curp.outfree) |
if (outst.outdata != NULL) { |
(*curp.outfree)(curp.outdata); |
switch (outst.outtype) { |
if (curp.mp) |
case OUTT_HTML: |
mparse_free(curp.mp); |
html_free(outst.outdata); |
|
break; |
|
case OUTT_UTF8: |
|
case OUTT_LOCALE: |
|
case OUTT_ASCII: |
|
ascii_free(outst.outdata); |
|
break; |
|
case OUTT_PDF: |
|
case OUTT_PS: |
|
pspdf_free(outst.outdata); |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
mandoc_xr_free(); |
|
mparse_free(mp); |
|
mchars_free(); |
|
|
return((int)rc); |
out: |
|
mansearch_free(res, ressz); |
|
if (search.argmode != ARG_FILE) |
|
manconf_free(&conf); |
|
|
|
if (outst.tag_files != NULL) { |
|
fclose(stdout); |
|
tag_write(); |
|
run_pager(outst.tag_files); |
|
tag_unlink(); |
|
} else if (outst.had_output && outst.outtype != OUTT_LINT) |
|
mandoc_msg_summary(); |
|
|
|
return (int)mandoc_msg_getrc(); |
} |
} |
|
|
static void |
static void |
version(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); |
|
} |
|
|
printf("%s %s\n", progname, VERSION); |
static int |
exit((int)MANDOCLEVEL_OK); |
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 void |
static int |
usage(void) |
fs_search(const struct mansearch *cfg, const struct manpaths *paths, |
|
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]); |
|
|
fprintf(stderr, "usage: %s " |
size_t ipath, isec; |
"[-V] " |
|
"[-foption] " |
|
"[-mformat] " |
|
"[-Ooption] " |
|
"[-Toutput] " |
|
"[-Wlevel] " |
|
"[file...]\n", |
|
progname); |
|
|
|
exit((int)MANDOCLEVEL_BADARG); |
assert(cfg->argmode == ARG_NAME); |
|
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], |
|
cfg->arch, name, res, ressz) != -1 && |
|
cfg->firstmatch) |
|
return 0; |
|
} |
|
} |
|
return -1; |
} |
} |
|
|
static void |
static void |
parse(struct curparse *curp, int fd, |
process_onefile(struct mparse *mp, struct manpage *resp, int startdir, |
const char *file, enum mandoclevel *level) |
struct outstate *outst, struct manconf *conf) |
{ |
{ |
enum mandoclevel rc; |
int fd; |
struct mdoc *mdoc; |
|
struct man *man; |
|
|
|
/* 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); |
|
|
assert(file); |
mandoc_msg_setinfilename(resp->file); |
assert(fd >= -1); |
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; |
|
|
rc = mparse_readfd(curp->mp, fd, file); |
if (outst->use_pager) { |
|
outst->use_pager = 0; |
|
outst->tag_files = tag_init(conf->output.tag); |
|
} |
|
|
/* Stop immediately if the parse has failed. */ |
if (outst->had_output && outst->outtype <= OUTT_UTF8) { |
|
if (outst->outdata == NULL) |
|
outdata_alloc(outst, &conf->output); |
|
terminal_sepline(outst->outdata); |
|
} |
|
|
if (MANDOCLEVEL_FATAL <= rc) |
if (resp->form == FORM_SRC) |
goto cleanup; |
parse(mp, fd, resp->file, outst, &conf->output); |
|
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)); |
|
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 manoutput *outconf) |
|
{ |
|
static int previous; |
|
struct roff_meta *meta; |
|
|
|
assert(fd >= 0); |
|
if (file == NULL) |
|
file = "<stdin>"; |
|
|
|
if (previous) |
|
mparse_reset(mp); |
|
else |
|
previous = 1; |
|
|
|
mparse_readfd(mp, fd, file); |
|
if (fd != STDIN_FILENO) |
|
close(fd); |
|
|
/* |
/* |
* With -Wstop and warnings or errors of at least the requested |
* With -Wstop and warnings or errors of at least the requested |
* level, do not produce output. |
* level, do not produce output. |
*/ |
*/ |
|
|
if (MANDOCLEVEL_OK != rc && curp->wstop) |
if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) |
goto cleanup; |
return; |
|
|
/* If unset, allocate output dev now (if applicable). */ |
if (outst->outdata == NULL) |
|
outdata_alloc(outst, outconf); |
|
else if (outst->outtype == OUTT_HTML) |
|
html_reset(outst); |
|
|
if ( ! (curp->outman && curp->outmdoc)) { |
mandoc_xr_reset(); |
switch (curp->outtype) { |
meta = mparse_result(mp); |
case (OUTT_XHTML): |
|
curp->outdata = xhtml_alloc(curp->outopts); |
/* Execute the out device, if it exists. */ |
curp->outfree = html_free; |
|
|
outst->had_output = 1; |
|
if (meta->macroset == MACROSET_MDOC) { |
|
switch (outst->outtype) { |
|
case OUTT_HTML: |
|
html_mdoc(outst->outdata, meta); |
break; |
break; |
case (OUTT_HTML): |
case OUTT_TREE: |
curp->outdata = html_alloc(curp->outopts); |
tree_mdoc(outst->outdata, meta); |
curp->outfree = html_free; |
|
break; |
break; |
case (OUTT_LOCALE): |
case OUTT_MAN: |
curp->outdata = locale_alloc(curp->outopts); |
man_mdoc(outst->outdata, meta); |
curp->outfree = ascii_free; |
|
break; |
break; |
case (OUTT_ASCII): |
case OUTT_PDF: |
curp->outdata = ascii_alloc(curp->outopts); |
case OUTT_ASCII: |
curp->outfree = ascii_free; |
case OUTT_UTF8: |
|
case OUTT_LOCALE: |
|
case OUTT_PS: |
|
terminal_mdoc(outst->outdata, meta); |
break; |
break; |
case (OUTT_PDF): |
case OUTT_MARKDOWN: |
curp->outdata = pdf_alloc(curp->outopts); |
markdown_mdoc(outst->outdata, meta); |
curp->outfree = pspdf_free; |
|
break; |
break; |
case (OUTT_PS): |
|
curp->outdata = ps_alloc(curp->outopts); |
|
curp->outfree = pspdf_free; |
|
break; |
|
default: |
default: |
break; |
break; |
} |
} |
|
} |
switch (curp->outtype) { |
if (meta->macroset == MACROSET_MAN) { |
case (OUTT_HTML): |
switch (outst->outtype) { |
/* FALLTHROUGH */ |
case OUTT_HTML: |
case (OUTT_XHTML): |
html_man(outst->outdata, meta); |
curp->outman = html_man; |
|
curp->outmdoc = html_mdoc; |
|
break; |
break; |
case (OUTT_TREE): |
case OUTT_TREE: |
curp->outman = tree_man; |
tree_man(outst->outdata, meta); |
curp->outmdoc = tree_mdoc; |
|
break; |
break; |
case (OUTT_PDF): |
case OUTT_MAN: |
/* FALLTHROUGH */ |
mparse_copy(mp); |
case (OUTT_ASCII): |
|
/* FALLTHROUGH */ |
|
case (OUTT_LOCALE): |
|
/* FALLTHROUGH */ |
|
case (OUTT_PS): |
|
curp->outman = terminal_man; |
|
curp->outmdoc = terminal_mdoc; |
|
break; |
break; |
|
case OUTT_PDF: |
|
case OUTT_ASCII: |
|
case OUTT_UTF8: |
|
case OUTT_LOCALE: |
|
case OUTT_PS: |
|
terminal_man(outst->outdata, meta); |
|
break; |
default: |
default: |
break; |
break; |
} |
} |
} |
} |
|
if (mandoc_msg_getmin() < MANDOCERR_STYLE) |
|
check_xr(); |
|
} |
|
|
mparse_result(curp->mp, &mdoc, &man); |
static void |
|
check_xr(void) |
|
{ |
|
static struct manpaths paths; |
|
struct mansearch search; |
|
struct mandoc_xr *xr; |
|
size_t sz; |
|
|
/* Execute the out device, if it exists. */ |
if (paths.sz == 0) |
|
manpath_base(&paths); |
|
|
if (man && curp->outman) |
for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) { |
(*curp->outman)(curp->outdata, man); |
if (xr->line == -1) |
if (mdoc && curp->outmdoc) |
continue; |
(*curp->outmdoc)(curp->outdata, mdoc); |
search.arch = NULL; |
|
search.sec = xr->sec; |
cleanup: |
search.outkey = NULL; |
|
search.argmode = ARG_NAME; |
mparse_reset(curp->mp); |
search.firstmatch = 1; |
|
if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz)) |
if (*level < rc) |
continue; |
*level = rc; |
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 int |
static void |
moptions(enum mparset *tflags, char *arg) |
outdata_alloc(struct outstate *outst, struct manoutput *outconf) |
{ |
{ |
|
switch (outst->outtype) { |
if (0 == strcmp(arg, "doc")) |
case OUTT_HTML: |
*tflags = MPARSE_MDOC; |
outst->outdata = html_alloc(outconf); |
else if (0 == strcmp(arg, "andoc")) |
break; |
*tflags = MPARSE_AUTO; |
case OUTT_UTF8: |
else if (0 == strcmp(arg, "an")) |
outst->outdata = utf8_alloc(outconf); |
*tflags = MPARSE_MAN; |
break; |
else { |
case OUTT_LOCALE: |
fprintf(stderr, "%s: Bad argument\n", arg); |
outst->outdata = locale_alloc(outconf); |
return(0); |
break; |
|
case OUTT_ASCII: |
|
outst->outdata = ascii_alloc(outconf); |
|
break; |
|
case OUTT_PDF: |
|
outst->outdata = pdf_alloc(outconf); |
|
break; |
|
case OUTT_PS: |
|
outst->outdata = ps_alloc(outconf); |
|
break; |
|
default: |
|
break; |
} |
} |
|
|
return(1); |
|
} |
} |
|
|
static int |
static void |
toptions(struct curparse *curp, char *arg) |
passthrough(int fd, int synopsis_only) |
{ |
{ |
|
const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; |
|
const char synr[] = "SYNOPSIS"; |
|
|
if (0 == strcmp(arg, "ascii")) |
FILE *stream; |
curp->outtype = OUTT_ASCII; |
char *line, *cp; |
else if (0 == strcmp(arg, "lint")) { |
size_t linesz; |
curp->outtype = OUTT_LINT; |
ssize_t len, written; |
curp->wlevel = MANDOCLEVEL_WARNING; |
int lno, print; |
} else if (0 == strcmp(arg, "tree")) |
|
curp->outtype = OUTT_TREE; |
stream = NULL; |
else if (0 == strcmp(arg, "html")) |
line = NULL; |
curp->outtype = OUTT_HTML; |
linesz = 0; |
else if (0 == strcmp(arg, "locale")) |
|
curp->outtype = OUTT_LOCALE; |
if (fflush(stdout) == EOF) { |
else if (0 == strcmp(arg, "xhtml")) |
mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno)); |
curp->outtype = OUTT_XHTML; |
goto done; |
else if (0 == strcmp(arg, "ps")) |
|
curp->outtype = OUTT_PS; |
|
else if (0 == strcmp(arg, "pdf")) |
|
curp->outtype = OUTT_PDF; |
|
else { |
|
fprintf(stderr, "%s: Bad argument\n", arg); |
|
return(0); |
|
} |
} |
|
if ((stream = fdopen(fd, "r")) == NULL) { |
|
close(fd); |
|
mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno)); |
|
goto done; |
|
} |
|
|
return(1); |
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 |
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[6]; |
const char *toks[11]; |
|
|
toks[0] = "stop"; |
toks[0] = "stop"; |
toks[1] = "all"; |
toks[1] = "all"; |
toks[2] = "warning"; |
toks[2] = "base"; |
toks[3] = "error"; |
toks[3] = "style"; |
toks[4] = "fatal"; |
toks[4] = "warning"; |
toks[5] = NULL; |
toks[5] = "error"; |
|
toks[6] = "unsupp"; |
|
toks[7] = "fatal"; |
|
toks[8] = "openbsd"; |
|
toks[9] = "netbsd"; |
|
toks[10] = NULL; |
|
|
while (*arg) { |
while (*arg) { |
o = arg; |
o = arg; |
switch (getsubopt(&arg, UNCONST(toks), &v)) { |
switch (getsubopt(&arg, (char * const *)toks, &v)) { |
case (0): |
case 0: |
curp->wstop = 1; |
*wstop = 1; |
break; |
break; |
case (1): |
case 1: |
/* FALLTHROUGH */ |
case 2: |
case (2): |
mandoc_msg_setmin(MANDOCERR_BASE); |
curp->wlevel = MANDOCLEVEL_WARNING; |
|
break; |
break; |
case (3): |
case 3: |
curp->wlevel = MANDOCLEVEL_ERROR; |
mandoc_msg_setmin(MANDOCERR_STYLE); |
break; |
break; |
case (4): |
case 4: |
curp->wlevel = MANDOCLEVEL_FATAL; |
mandoc_msg_setmin(MANDOCERR_WARNING); |
break; |
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); |
|
*os_e = MANDOC_OS_OPENBSD; |
|
break; |
|
case 9: |
|
mandoc_msg_setmin(MANDOCERR_BASE); |
|
*os_e = MANDOC_OS_NETBSD; |
|
break; |
default: |
default: |
fprintf(stderr, "-W%s: Bad argument\n", o); |
mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o); |
return(0); |
return -1; |
} |
} |
} |
} |
|
return 0; |
return(1); |
|
} |
} |
|
|
|
/* |
|
* 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, |
run_pager(struct tag_files *tag_files) |
const char *file, int line, int col, const char *msg) |
|
{ |
{ |
|
int signum, status; |
|
pid_t man_pgid, tc_pgid; |
|
pid_t pager_pid, wait_pid; |
|
|
fprintf(stderr, "%s:%d:%d: %s: %s", |
man_pgid = getpgid(0); |
file, line, col + 1, |
tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) : |
mparse_strlevel(lvl), |
man_pgid; |
mparse_strerror(t)); |
pager_pid = 0; |
|
signum = SIGSTOP; |
|
|
if (msg) |
for (;;) { |
fprintf(stderr, ": %s", msg); |
/* Stop here until moved to the foreground. */ |
|
|
fputc('\n', stderr); |
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 ((wait_pid = waitpid(pager_pid, &status, |
|
WUNTRACED)) == -1 && errno == EINTR) |
|
continue; |
|
|
|
if (wait_pid == -1) { |
|
mandoc_msg(MANDOCERR_WAIT, 0, 0, |
|
"%s", strerror(errno)); |
|
break; |
|
} |
|
if (!WIFSTOPPED(status)) |
|
break; |
|
|
|
signum = WSTOPSIG(status); |
|
} |
|
} |
|
|
|
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 = "more -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()); |
} |
} |