=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.169 retrieving revision 1.273.2.4 diff -u -p -r1.169 -r1.273.2.4 --- mandoc/main.c 2014/01/06 00:53:33 1.169 +++ mandoc/main.c 2017/01/09 17:57:15 1.273.2.4 @@ -1,47 +1,65 @@ -/* $Id: main.c,v 1.169 2014/01/06 00:53:33 schwarze Exp $ */ +/* $Id: main.c,v 1.273.2.4 2017/01/09 17:57:15 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2010, 2011, 2012 Ingo Schwarze + * Copyright (c) 2008-2012 Kristaps Dzonsons + * Copyright (c) 2010-2012, 2014-2017 Ingo Schwarze * Copyright (c) 2010 Joerg Sonnenberger * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#ifdef HAVE_CONFIG_H #include "config.h" -#endif +#include +#include /* MACHINE */ +#include + #include +#include +#if HAVE_ERR +#include +#endif +#include +#include +#include +#if HAVE_SANDBOX_INIT +#include +#endif +#include #include #include #include #include +#include #include +#include "mandoc_aux.h" #include "mandoc.h" -#include "main.h" +#include "roff.h" #include "mdoc.h" #include "man.h" +#include "tag.h" +#include "main.h" +#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, + OUTMODE_LST, + OUTMODE_ALL, + OUTMODE_INT, + OUTMODE_ONE +}; -typedef void (*out_mdoc)(void *, const struct mdoc *); -typedef void (*out_man)(void *, const struct man *); -typedef void (*out_free)(void *); - enum outt { OUTT_ASCII = 0, /* -Tascii */ OUTT_LOCALE, /* -Tlocale */ @@ -49,7 +67,6 @@ enum outt { OUTT_TREE, /* -Ttree */ OUTT_MAN, /* -Tman */ OUTT_HTML, /* -Thtml */ - OUTT_XHTML, /* -Txhtml */ OUTT_LINT, /* -Tlint */ OUTT_PS, /* -Tps */ OUTT_PDF /* -Tpdf */ @@ -59,274 +76,871 @@ struct curparse { struct mparse *mp; enum mandoclevel wlevel; /* ignore messages below this */ int wstop; /* stop after a file with a warning */ - enum outt outtype; /* which output to use */ - out_mdoc outmdoc; /* mdoc output ptr */ - out_man outman; /* man output ptr */ - out_free outfree; /* free output ptr */ + enum outt outtype; /* which output to use */ void *outdata; /* data for output */ - char outopts[BUFSIZ]; /* buf of output opts */ + struct manoutput *outopts; /* output options */ }; -static int moptions(enum mparset *, char *); + +#if HAVE_SQLITE3 +int mandocdb(int, char *[]); +#endif + +static int fs_lookup(const struct manpaths *, + size_t ipath, const char *, + const char *, const char *, + struct manpage **, size_t *); +static void fs_search(const struct mansearch *, + const struct manpaths *, int, char**, + struct manpage **, size_t *); +static int koptions(int *, char *); +static int moptions(int *, char *); static void mmsg(enum mandocerr, enum mandoclevel, const char *, int, int, const char *); -static void parse(struct curparse *, int, - const char *, enum mandoclevel *); +static void outdata_alloc(struct curparse *); +static void parse(struct curparse *, int, const char *); +static void passthrough(const char *, int, int); +static pid_t spawn_pager(struct tag_files *); static int toptions(struct curparse *, char *); -static void usage(void) __attribute__((noreturn)); -static void version(void) __attribute__((noreturn)); +static void usage(enum argmode) __attribute__((noreturn)); static int woptions(struct curparse *, char *); -static const char *progname; +static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9}; +static char help_arg[] = "help"; +static char *help_argv[] = {help_arg, NULL}; +static enum mandoclevel rc; + int main(int argc, char *argv[]) { - int c; + struct manconf conf; struct curparse curp; - enum mparset type; - enum mandoclevel rc; + struct mansearch search; + struct tag_files *tag_files; + const char *progname; + char *auxpaths; char *defos; + unsigned char *uc; + struct manpage *res, *resp; + char *conf_file, *defpaths; + const char *sec; + size_t i, sz; + int prio, best_prio; + 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; - progname = strrchr(argv[0], '/'); - if (progname == NULL) +#if HAVE_PROGNAME + progname = getprogname(); +#else + if (argc < 1) + progname = mandoc_strdup("mandoc"); + else if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; else ++progname; + setprogname(progname); +#endif - memset(&curp, 0, sizeof(struct curparse)); +#if HAVE_SQLITE3 + if (strncmp(progname, "mandocdb", 8) == 0 || + strcmp(progname, BINM_MAKEWHATIS) == 0) + return mandocdb(argc, argv); +#endif - type = MPARSE_AUTO; - curp.outtype = OUTT_ASCII; - curp.wlevel = MANDOCLEVEL_FATAL; +#if HAVE_PLEDGE + 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)); + conf_file = defpaths = NULL; + auxpaths = NULL; + + memset(&search, 0, sizeof(struct mansearch)); + search.outkey = "Nd"; + + 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.wlevel = MANDOCLEVEL_BADARG; + curp.outopts = &conf.output; + options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1; defos = NULL; - /* LINTED */ - while (-1 != (c = getopt(argc, argv, "I:m:O:T:VW:"))) + use_pager = 1; + tag_files = NULL; + show_usage = 0; + outmode = OUTMODE_DEF; + + while (-1 != (c = getopt(argc, argv, + "aC:cfhI:iK:klM:m:O:S:s:T:VW:w"))) { switch (c) { - case ('I'): + 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)) { - fprintf(stderr, "-I%s: Bad argument\n", - optarg); - return((int)MANDOCLEVEL_BADARG); + warnx("-I %s: Bad argument", optarg); + return (int)MANDOCLEVEL_BADARG; } if (defos) { - fprintf(stderr, "-I%s: Duplicate argument\n", - optarg); - return((int)MANDOCLEVEL_BADARG); + warnx("-I %s: Duplicate argument", optarg); + return (int)MANDOCLEVEL_BADARG; } defos = mandoc_strdup(optarg + 3); break; - case ('m'): - if ( ! moptions(&type, optarg)) - return((int)MANDOCLEVEL_BADARG); + case 'i': + outmode = OUTMODE_INT; break; - case ('O'): - (void)strlcat(curp.outopts, optarg, BUFSIZ); - (void)strlcat(curp.outopts, ",", BUFSIZ); + case 'K': + if ( ! koptions(&options, optarg)) + return (int)MANDOCLEVEL_BADARG; break; - case ('T'): + case 'k': + search.argmode = ARG_EXPR; + break; + case 'l': + search.argmode = ARG_FILE; + outmode = OUTMODE_ALL; + break; + case 'M': + defpaths = optarg; + break; + case 'm': + auxpaths = optarg; + break; + case 'O': + search.outkey = optarg; + while (optarg != NULL) + manconf_output(&conf.output, + strsep(&optarg, ",")); + break; + case 'S': + search.arch = optarg; + break; + case 's': + search.sec = optarg; + break; + case 'T': if ( ! toptions(&curp, optarg)) - return((int)MANDOCLEVEL_BADARG); + return (int)MANDOCLEVEL_BADARG; break; - case ('W'): + case 'W': if ( ! woptions(&curp, optarg)) - return((int)MANDOCLEVEL_BADARG); + return (int)MANDOCLEVEL_BADARG; break; - case ('V'): - version(); - /* NOTREACHED */ + case 'w': + outmode = OUTMODE_FLN; + break; default: - usage(); - /* NOTREACHED */ + show_usage = 1; + break; } + } - curp.mp = mparse_alloc(type, curp.wlevel, mmsg, defos, 0); + 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 (outmode == OUTMODE_FLN || + outmode == OUTMODE_LST || + !isatty(STDOUT_FILENO)) + use_pager = 0; + +#if HAVE_PLEDGE + if (!use_pager) + if (pledge("stdio rpath flock", NULL) == -1) + err((int)MANDOCLEVEL_SYSERR, "pledge"); +#endif + + /* Parse arguments. */ + + 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[2] == '\0'))) || + (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 + } + + rc = MANDOCLEVEL_OK; + + /* 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; + + /* 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) + fs_search(&search, &conf.manpath, + argc, argv, &res, &sz); + else + warnx("nothing appropriate"); + } + + if (sz == 0) { + rc = 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 = 20; + } else if (outmode == OUTMODE_ALL) + argc = (int)sz; + + /* Iterate all matching manuals. */ + + resp = res; + for (i = 0; i < sz; i++) { + if (outmode == OUTMODE_FLN) + puts(res[i].file); + else if (outmode == OUTMODE_LST) + printf("%s - %s\n", res[i].names, + res[i].output == NULL ? "" : + res[i].output); + else if (outmode == OUTMODE_ONE) { + /* Search for the best section. */ + sec = res[i].file; + sec += strcspn(sec, "123456789"); + if (sec[0] == '\0') + continue; + prio = sec_prios[sec[0] - '1']; + if (sec[1] != '/') + prio += 10; + 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) + 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)) + return (int)MANDOCLEVEL_BADARG; + + mchars_alloc(); + curp.mp = mparse_alloc(options, curp.wlevel, mmsg, defos); + + /* * Conditionally start up the lookaside buffer before parsing. */ if (OUTT_MAN == curp.outtype) mparse_keep(curp.mp); - argc -= optind; - argv += optind; + if (argc < 1) { + if (use_pager) + tag_files = tag_init(); + parse(&curp, STDIN_FILENO, ""); + } - rc = MANDOCLEVEL_OK; + while (argc > 0) { + fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv); + if (fd != -1) { + if (use_pager) { + tag_files = tag_init(); + use_pager = 0; + } - if (NULL == *argv) - parse(&curp, STDIN_FILENO, "", &rc); + if (resp == NULL) + parse(&curp, fd, *argv); + else if (resp->form & FORM_SRC) { + /* For .so only; ignore failure. */ + chdir(conf.manpath.paths[resp->ipath]); + parse(&curp, fd, resp->file); + } else + passthrough(resp->file, fd, + conf.output.synopsisonly); - while (*argv) { - parse(&curp, -1, *argv, &rc); + if (argc > 1 && curp.outtype <= OUTT_UTF8) { + if (curp.outdata == NULL) + outdata_alloc(&curp); + terminal_sepline(curp.outdata); + } + } else if (rc < MANDOCLEVEL_ERROR) + rc = MANDOCLEVEL_ERROR; + if (MANDOCLEVEL_OK != rc && curp.wstop) break; - ++argv; + + if (resp != NULL) + resp++; + else + argv++; + if (--argc) + mparse_reset(curp.mp); } - if (curp.outfree) - (*curp.outfree)(curp.outdata); - if (curp.mp) - mparse_free(curp.mp); + if (curp.outdata != NULL) { + switch (curp.outtype) { + case OUTT_HTML: + html_free(curp.outdata); + break; + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_ASCII: + ascii_free(curp.outdata); + break; + case OUTT_PDF: + case OUTT_PS: + pspdf_free(curp.outdata); + break; + default: + break; + } + } + mparse_free(curp.mp); + mchars_free(); + +out: + if (search.argmode != ARG_FILE) { + manconf_free(&conf); +#if HAVE_SQLITE3 + mansearch_free(res, sz); + mansearch_setup(0); +#endif + } + free(defos); - return((int)rc); + /* + * When using a pager, finish writing both temporary files, + * fork it, wait for the user to close it, and clean up. + */ + + 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) { + warn("wait"); + rc = MANDOCLEVEL_SYSERR; + break; + } + if (!WIFSTOPPED(status)) + break; + + signum = WSTOPSIG(status); + } + tag_unlink(); + } + + return (int)rc; } static void -version(void) +usage(enum argmode argmode) { - printf("%s %s\n", progname, VERSION); - exit((int)MANDOCLEVEL_OK); + switch (argmode) { + case ARG_FILE: + fputs("usage: mandoc [-acfhkl] [-I os=name] " + "[-K encoding] [-mformat] [-O option]\n" + "\t [-T output] [-W level] [file ...]\n", stderr); + break; + case ARG_NAME: + fputs("usage: man [-acfhklw] [-C file] [-I os=name] " + "[-K encoding] [-M path] [-m path]\n" + "\t [-O option=value] [-S subsection] [-s section] " + "[-T output] [-W level]\n" + "\t [section] name ...\n", stderr); + break; + case ARG_WORD: + fputs("usage: whatis [-acfhklw] [-C file] " + "[-M path] [-m path] [-O outkey] [-S arch]\n" + "\t [-s section] name ...\n", stderr); + break; + case ARG_EXPR: + fputs("usage: apropos [-acfhklw] [-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) +{ + glob_t globinfo; + struct manpage *page; + char *file; + int form, globres; + + form = FORM_SRC; + mandoc_asprintf(&file, "%s/man%s/%s.%s", + paths->paths[ipath], sec, name, sec); + if (access(file, R_OK) != -1) + goto found; + free(file); + + mandoc_asprintf(&file, "%s/cat%s/%s.0", + paths->paths[ipath], sec, name); + if (access(file, R_OK) != -1) { + form = FORM_CAT; + goto found; + } + free(file); + + if (arch != NULL) { + mandoc_asprintf(&file, "%s/man%s/%s/%s.%s", + paths->paths[ipath], sec, arch, name, sec); + if (access(file, R_OK) != -1) + goto found; + free(file); + } + + mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*", + paths->paths[ipath], sec, name); + globres = glob(file, 0, NULL, &globinfo); + if (globres != 0 && globres != GLOB_NOMATCH) + warn("%s: glob", file); + free(file); + if (globres == 0) + file = mandoc_strdup(*globinfo.gl_pathv); + globfree(&globinfo); + if (globres != 0) + return 0; + +found: +#if HAVE_SQLITE3 + warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s", + name, sec, BINM_MAKEWHATIS, paths->paths[ipath]); +#endif + *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage)); + page = *res + (*ressz - 1); + page->file = file; + page->names = NULL; + page->output = NULL; + page->ipath = ipath; + page->bits = NAME_FILE & NAME_MASK; + page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10; + page->form = form; + return 1; +} + static void -usage(void) +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]); - fprintf(stderr, "usage: %s " - "[-V] " - "[-Ios=name] " - "[-mformat] " - "[-Ooption] " - "[-Toutput] " - "[-Wlevel]\n" - "\t [file ...]\n", - progname); + size_t ipath, isec, lastsz; - exit((int)MANDOCLEVEL_BADARG); + assert(cfg->argmode == ARG_NAME); + + *res = NULL; + *ressz = lastsz = 0; + while (argc) { + for (ipath = 0; ipath < paths->sz; ipath++) { + if (cfg->sec != NULL) { + if (fs_lookup(paths, ipath, cfg->sec, + cfg->arch, *argv, res, ressz) && + cfg->firstmatch) + return; + } else for (isec = 0; isec < nsec; isec++) + if (fs_lookup(paths, ipath, sections[isec], + cfg->arch, *argv, res, ressz) && + cfg->firstmatch) + return; + } + if (*ressz == lastsz) + warnx("No entry for %s in the manual.", *argv); + lastsz = *ressz; + argv++; + argc--; + } } static void -parse(struct curparse *curp, int fd, - const char *file, enum mandoclevel *level) +parse(struct curparse *curp, int fd, const char *file) { - enum mandoclevel rc; - struct mdoc *mdoc; - struct man *man; + enum mandoclevel rctmp; + struct roff_man *man; /* Begin by parsing the file itself. */ assert(file); - assert(fd >= -1); + assert(fd >= 0); - rc = mparse_readfd(curp->mp, fd, file); + rctmp = mparse_readfd(curp->mp, fd, file); + if (fd != STDIN_FILENO) + close(fd); + if (rc < rctmp) + rc = rctmp; - /* Stop immediately if the parse has failed. */ - - if (MANDOCLEVEL_FATAL <= rc) - goto cleanup; - /* * With -Wstop and warnings or errors of at least the requested * level, do not produce output. */ - if (MANDOCLEVEL_OK != rc && curp->wstop) - goto cleanup; + if (rctmp != MANDOCLEVEL_OK && curp->wstop) + return; - /* If unset, allocate output dev now (if applicable). */ + if (curp->outdata == NULL) + outdata_alloc(curp); - if ( ! (curp->outman && curp->outmdoc)) { + mparse_result(curp->mp, &man, NULL); + + /* Execute the out device, if it exists. */ + + if (man == NULL) + return; + if (man->macroset == MACROSET_MDOC) { + mdoc_validate(man); switch (curp->outtype) { - case (OUTT_XHTML): - curp->outdata = xhtml_alloc(curp->outopts); - curp->outfree = html_free; + case OUTT_HTML: + html_mdoc(curp->outdata, man); break; - case (OUTT_HTML): - curp->outdata = html_alloc(curp->outopts); - curp->outfree = html_free; + case OUTT_TREE: + tree_mdoc(curp->outdata, man); break; - case (OUTT_UTF8): - curp->outdata = utf8_alloc(curp->outopts); - curp->outfree = ascii_free; + case OUTT_MAN: + man_mdoc(curp->outdata, man); break; - case (OUTT_LOCALE): - curp->outdata = locale_alloc(curp->outopts); - curp->outfree = ascii_free; + case OUTT_PDF: + case OUTT_ASCII: + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_PS: + terminal_mdoc(curp->outdata, man); break; - case (OUTT_ASCII): - curp->outdata = ascii_alloc(curp->outopts); - curp->outfree = ascii_free; - break; - case (OUTT_PDF): - curp->outdata = pdf_alloc(curp->outopts); - curp->outfree = pspdf_free; - break; - case (OUTT_PS): - curp->outdata = ps_alloc(curp->outopts); - curp->outfree = pspdf_free; - break; default: break; } - + } + if (man->macroset == MACROSET_MAN) { + man_validate(man); switch (curp->outtype) { - case (OUTT_HTML): - /* FALLTHROUGH */ - case (OUTT_XHTML): - curp->outman = html_man; - curp->outmdoc = html_mdoc; + case OUTT_HTML: + html_man(curp->outdata, man); break; - case (OUTT_TREE): - curp->outman = tree_man; - curp->outmdoc = tree_mdoc; + case OUTT_TREE: + tree_man(curp->outdata, man); break; - case (OUTT_MAN): - curp->outmdoc = man_mdoc; - curp->outman = man_man; + case OUTT_MAN: + man_man(curp->outdata, man); break; - case (OUTT_PDF): - /* FALLTHROUGH */ - case (OUTT_ASCII): - /* FALLTHROUGH */ - case (OUTT_UTF8): - /* FALLTHROUGH */ - case (OUTT_LOCALE): - /* FALLTHROUGH */ - case (OUTT_PS): - curp->outman = terminal_man; - curp->outmdoc = terminal_mdoc; + case OUTT_PDF: + case OUTT_ASCII: + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_PS: + terminal_man(curp->outdata, man); break; default: break; } } + mparse_updaterc(curp->mp, &rc); +} - mparse_result(curp->mp, &mdoc, &man); +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; + } +} - /* Execute the out device, if it exists. */ +static void +passthrough(const char *file, int fd, int synopsis_only) +{ + const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; + const char synr[] = "SYNOPSIS"; - if (man && curp->outman) - (*curp->outman)(curp->outdata, man); - if (mdoc && curp->outmdoc) - (*curp->outmdoc)(curp->outdata, mdoc); + FILE *stream; + const char *syscall; + char *line, *cp; + size_t linesz; + ssize_t len, written; + int print; - cleanup: + line = NULL; + linesz = 0; - mparse_reset(curp->mp); + if (fflush(stdout) == EOF) { + syscall = "fflush"; + goto fail; + } - if (*level < rc) - *level = rc; + if ((stream = fdopen(fd, "r")) == NULL) { + close(fd); + syscall = "fdopen"; + goto fail; + } + + print = 0; + while ((len = getline(&line, &linesz, stream)) != -1) { + 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) + continue; + fclose(stream); + syscall = "write"; + goto fail; + } + } + + if (ferror(stream)) { + fclose(stream); + 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; } static int -moptions(enum mparset *tflags, char *arg) +koptions(int *options, char *arg) { - if (0 == strcmp(arg, "doc")) - *tflags = MPARSE_MDOC; + if ( ! strcmp(arg, "utf-8")) { + *options |= MPARSE_UTF8; + *options &= ~MPARSE_LATIN1; + } else if ( ! strcmp(arg, "iso-8859-1")) { + *options |= MPARSE_LATIN1; + *options &= ~MPARSE_UTF8; + } else if ( ! strcmp(arg, "us-ascii")) { + *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1); + } else { + warnx("-K %s: Bad argument", arg); + return 0; + } + return 1; +} + +static int +moptions(int *options, char *arg) +{ + + if (arg == NULL) + /* nothing to do */; + else if (0 == strcmp(arg, "doc")) + *options |= MPARSE_MDOC; else if (0 == strcmp(arg, "andoc")) - *tflags = MPARSE_AUTO; + /* nothing to do */; else if (0 == strcmp(arg, "an")) - *tflags = MPARSE_MAN; + *options |= MPARSE_MAN; else { - fprintf(stderr, "%s: Bad argument\n", arg); - return(0); + warnx("-m %s: Bad argument", arg); + return 0; } - return(1); + return 1; } static int @@ -349,70 +963,161 @@ toptions(struct curparse *curp, char *arg) else if (0 == strcmp(arg, "locale")) curp->outtype = OUTT_LOCALE; else if (0 == strcmp(arg, "xhtml")) - curp->outtype = OUTT_XHTML; + curp->outtype = OUTT_HTML; 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); + warnx("-T %s: Bad argument", arg); + return 0; } - return(1); + return 1; } static int woptions(struct curparse *curp, char *arg) { char *v, *o; - const char *toks[6]; + const char *toks[7]; toks[0] = "stop"; toks[1] = "all"; toks[2] = "warning"; toks[3] = "error"; - toks[4] = "fatal"; - toks[5] = NULL; + toks[4] = "unsupp"; + toks[5] = "fatal"; + toks[6] = NULL; while (*arg) { o = arg; - switch (getsubopt(&arg, UNCONST(toks), &v)) { - case (0): + switch (getsubopt(&arg, (char * const *)toks, &v)) { + case 0: curp->wstop = 1; break; - case (1): - /* FALLTHROUGH */ - case (2): + case 1: + case 2: curp->wlevel = MANDOCLEVEL_WARNING; break; - case (3): + case 3: curp->wlevel = MANDOCLEVEL_ERROR; break; - case (4): - curp->wlevel = MANDOCLEVEL_FATAL; + case 4: + curp->wlevel = MANDOCLEVEL_UNSUPP; break; + case 5: + curp->wlevel = MANDOCLEVEL_BADARG; + break; default: - fprintf(stderr, "-W%s: Bad argument\n", o); - return(0); + warnx("-W %s: Bad argument", o); + return 0; } } - return(1); + return 1; } static void -mmsg(enum mandocerr t, enum mandoclevel lvl, +mmsg(enum mandocerr t, enum mandoclevel lvl, const char *file, int line, int col, const char *msg) { + const char *mparse_msg; - fprintf(stderr, "%s:%d:%d: %s: %s", - file, line, col + 1, - mparse_strlevel(lvl), - mparse_strerror(t)); + fprintf(stderr, "%s: %s:", getprogname(), + file == NULL ? "" : file); + if (line) + fprintf(stderr, "%d:%d:", line, col + 1); + + fprintf(stderr, " %s", mparse_strlevel(lvl)); + + if (NULL != (mparse_msg = mparse_strerror(t))) + fprintf(stderr, ": %s", mparse_msg); + if (msg) fprintf(stderr, ": %s", msg); fputc('\n', stderr); +} + +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; + size_t cmdlen; + int argc; + 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 + 4 < 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. */ + + if ((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; + } + } + argv[argc++] = tag_files->ofn; + argv[argc] = NULL; + + switch (pager_pid = fork()) { + case -1: + err((int)MANDOCLEVEL_SYSERR, "fork"); + 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) + err((int)MANDOCLEVEL_SYSERR, "pledge"); +#endif + tag_files->pager_pid = pager_pid; + return pager_pid; + } + + /* The child process becomes the pager. */ + + if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) + err((int)MANDOCLEVEL_SYSERR, "pager stdout"); + close(tag_files->ofd); + close(tag_files->tfd); + + /* Do not start the pager before controlling the terminal. */ + + while (tcgetpgrp(STDOUT_FILENO) != getpid()) + nanosleep(&timeout, NULL); + + execvp(argv[0], argv); + err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]); }