=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.56 retrieving revision 1.295 diff -u -p -r1.56 -r1.295 --- mandoc/main.c 2009/11/02 08:13:48 1.56 +++ mandoc/main.c 2017/07/01 12:02:31 1.295 @@ -1,675 +1,1168 @@ -/* $Id: main.c,v 1.56 2009/11/02 08:13:48 kristaps Exp $ */ +/* $Id: main.c,v 1.295 2017/07/01 12:02:31 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons + * 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. */ -#include +#include "config.h" +#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 "mandoc_xr.h" +#include "roff.h" #include "mdoc.h" #include "man.h" +#include "tag.h" #include "main.h" +#include "manconf.h" +#include "mansearch.h" -#define UNCONST(a) ((void *)(uintptr_t)(const void *)(a)) - -/* FIXME: Intel's compiler? LLVM? pcc? */ - -#if !defined(__GNUC__) || (__GNUC__ < 2) -# if !defined(lint) -# define __attribute__(x) -# endif -#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ - -#ifdef __linux__ -extern int getsubopt(char **, char * const *, char **); -extern size_t strlcat(char *, const char *, size_t); -#endif - -typedef void (*out_mdoc)(void *, const struct mdoc *); -typedef void (*out_man)(void *, const struct man *); -typedef void (*out_free)(void *); - -struct buf { - char *buf; - size_t sz; +enum outmode { + OUTMODE_DEF = 0, + OUTMODE_FLN, + OUTMODE_LST, + OUTMODE_ALL, + OUTMODE_ONE }; -enum intt { - INTT_AUTO, - INTT_MDOC, - INTT_MAN -}; - enum outt { - OUTT_ASCII = 0, - OUTT_TREE, - OUTT_HTML, - OUTT_LINT + OUTT_ASCII = 0, /* -Tascii */ + OUTT_LOCALE, /* -Tlocale */ + OUTT_UTF8, /* -Tutf8 */ + OUTT_TREE, /* -Ttree */ + OUTT_MAN, /* -Tman */ + OUTT_HTML, /* -Thtml */ + OUTT_MARKDOWN, /* -Tmarkdown */ + OUTT_LINT, /* -Tlint */ + OUTT_PS, /* -Tps */ + OUTT_PDF /* -Tpdf */ }; struct curparse { - const char *file; /* Current parse. */ - int fd; /* Current parse. */ - int wflags; -#define WARN_WALL (1 << 0) /* All-warnings mask. */ -#define WARN_WERR (1 << 2) /* Warnings->errors. */ - int fflags; -#define IGN_SCOPE (1 << 0) /* Ignore scope errors. */ -#define NO_IGN_ESCAPE (1 << 1) /* Don't ignore bad escapes. */ -#define NO_IGN_MACRO (1 << 2) /* Don't ignore bad macros. */ -#define NO_IGN_CHARS (1 << 3) /* Don't ignore bad chars. */ -#define IGN_ERRORS (1 << 4) /* Ignore failed parse. */ - enum intt inttype; /* Input parsers... */ - struct man *man; - struct man *lastman; - struct mdoc *mdoc; - struct mdoc *lastmdoc; - enum outt outtype; /* Output devices... */ - out_mdoc outmdoc; - out_man outman; - out_free outfree; - void *outdata; - char outopts[BUFSIZ]; + struct mparse *mp; + struct manoutput *outopts; /* output options */ + void *outdata; /* data for output */ + char *os_s; /* operating system for display */ + int wstop; /* stop after a file with a warning */ + enum mandocerr mmin; /* ignore messages below this */ + enum mandoc_os os_e; /* check base system conventions */ + enum outt outtype; /* which output to use */ }; -static int foptions(int *, char *); -static int toptions(enum outt *, char *); -static int moptions(enum intt *, char *); -static int woptions(int *, char *); -static int merr(void *, int, int, const char *); -static int mwarn(void *, int, int, const char *); -static int ffile(struct buf *, struct buf *, - const char *, struct curparse *); -static int fdesc(struct buf *, struct buf *, - struct curparse *); -static int pset(const char *, int, struct curparse *, - struct man **, struct mdoc **); -static struct man *man_init(struct curparse *); -static struct mdoc *mdoc_init(struct curparse *); -static void version(void) __attribute__((noreturn)); -static void usage(void) __attribute__((noreturn)); -static const char *progname; +int mandocdb(int, char *[]); +static void check_xr(const char *); +static int fs_lookup(const struct manpaths *, + size_t ipath, const char *, + const char *, const char *, + struct manpage **, size_t *); +static int fs_search(const struct mansearch *, + const struct manpaths *, int, char**, + struct manpage **, size_t *); +static int koptions(int *, char *); +static void moptions(int *, char *); +static void mmsg(enum mandocerr, enum mandoclevel, + const char *, int, int, const char *); +static void outdata_alloc(struct curparse *); +static void parse(struct curparse *, int, const char *); +static void passthrough(const char *, int, int); +static pid_t spawn_pager(struct tag_files *); +static int toptions(struct curparse *, char *); +static void usage(enum argmode) __attribute__((__noreturn__)); +static int woptions(struct curparse *, char *); +static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9}; +static char help_arg[] = "help"; +static char *help_argv[] = {help_arg, NULL}; +static enum mandoclevel rc; + + int main(int argc, char *argv[]) { - int c, rc; - struct buf ln, blk; + struct manconf conf; + struct mansearch search; struct curparse curp; + struct tag_files *tag_files; + struct manpage *res, *resp; + const char *progname, *sec, *thisarg; + char *conf_file, *defpaths, *auxpaths; + char *oarg; + unsigned char *uc; + 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 + if (strncmp(progname, "mandocdb", 8) == 0 || + strcmp(progname, BINM_MAKEWHATIS) == 0) + return mandocdb(argc, argv); + +#if HAVE_PLEDGE + if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) + err((int)MANDOCLEVEL_SYSERR, "pledge"); +#endif + +#if HAVE_SANDBOX_INIT + if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1) + errx((int)MANDOCLEVEL_SYSERR, "sandbox_init"); +#endif + + /* Search options. */ + + memset(&conf, 0, sizeof(conf)); + conf_file = defpaths = NULL; + auxpaths = NULL; + + memset(&search, 0, sizeof(struct mansearch)); + search.outkey = "Nd"; + oarg = NULL; + + if (strcmp(progname, BINM_MAN) == 0) + search.argmode = ARG_NAME; + else if (strcmp(progname, BINM_APROPOS) == 0) + search.argmode = ARG_EXPR; + else if (strcmp(progname, BINM_WHATIS) == 0) + search.argmode = ARG_WORD; + else if (strncmp(progname, "help", 4) == 0) + search.argmode = ARG_NAME; + else + search.argmode = ARG_FILE; + + /* Parser and formatter options. */ + memset(&curp, 0, sizeof(struct curparse)); + curp.outtype = OUTT_LOCALE; + curp.mmin = MANDOCERR_MAX; + curp.outopts = &conf.output; + options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1; - curp.inttype = INTT_AUTO; - curp.outtype = OUTT_ASCII; + use_pager = 1; + tag_files = NULL; + show_usage = 0; + outmode = OUTMODE_DEF; - /* LINTED */ - while (-1 != (c = getopt(argc, argv, "f:m:O:T:VW:"))) + while ((c = getopt(argc, argv, + "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) { + if (c == 'i' && search.argmode == ARG_EXPR) { + optind--; + break; + } switch (c) { - case ('f'): - if ( ! foptions(&curp.fflags, optarg)) - return(EXIT_FAILURE); + case 'a': + outmode = OUTMODE_ALL; break; - case ('m'): - if ( ! moptions(&curp.inttype, optarg)) - return(EXIT_FAILURE); + case 'C': + conf_file = optarg; break; - case ('O'): - (void)strlcat(curp.outopts, optarg, BUFSIZ); - (void)strlcat(curp.outopts, ",", BUFSIZ); + case 'c': + use_pager = 0; break; - case ('T'): - if ( ! toptions(&curp.outtype, optarg)) - return(EXIT_FAILURE); + case 'f': + search.argmode = ARG_WORD; break; - case ('W'): - if ( ! woptions(&curp.wflags, optarg)) - return(EXIT_FAILURE); + case 'h': + conf.output.synopsisonly = 1; + use_pager = 0; + outmode = OUTMODE_ALL; break; - case ('V'): - version(); - /* NOTREACHED */ + case 'I': + if (strncmp(optarg, "os=", 3)) { + warnx("-I %s: Bad argument", optarg); + return (int)MANDOCLEVEL_BADARG; + } + if (curp.os_s != NULL) { + warnx("-I %s: Duplicate argument", optarg); + return (int)MANDOCLEVEL_BADARG; + } + curp.os_s = mandoc_strdup(optarg + 3); + break; + case 'K': + if ( ! koptions(&options, optarg)) + return (int)MANDOCLEVEL_BADARG; + break; + 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': + oarg = optarg; + break; + case 'S': + search.arch = optarg; + break; + case 's': + search.sec = optarg; + break; + case 'T': + if ( ! toptions(&curp, optarg)) + return (int)MANDOCLEVEL_BADARG; + break; + case 'W': + if ( ! woptions(&curp, optarg)) + return (int)MANDOCLEVEL_BADARG; + break; + case 'w': + outmode = OUTMODE_FLN; + break; default: - usage(); - /* NOTREACHED */ + show_usage = 1; + break; } + } - argc -= optind; - argv += optind; + if (show_usage) + usage(search.argmode); - memset(&ln, 0, sizeof(struct buf)); - memset(&blk, 0, sizeof(struct buf)); + /* Postprocess options. */ - rc = 1; - - if (NULL == *argv) { - curp.file = ""; - curp.fd = STDIN_FILENO; - - c = fdesc(&blk, &ln, &curp); - if ( ! (IGN_ERRORS & curp.fflags)) - rc = 1 == c ? 1 : 0; - else - rc = -1 == c ? 0 : 1; + 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; + } } - while (rc && *argv) { - c = ffile(&blk, &ln, *argv, &curp); - if ( ! (IGN_ERRORS & curp.fflags)) - rc = 1 == c ? 1 : 0; - else - rc = -1 == c ? 0 : 1; - - argv++; - if (*argv && rc) { - if (curp.lastman) - man_reset(curp.lastman); - if (curp.lastmdoc) - mdoc_reset(curp.lastmdoc); - curp.lastman = NULL; - curp.lastmdoc = NULL; + if (oarg != NULL) { + if (outmode == OUTMODE_LST) + search.outkey = oarg; + else { + while (oarg != NULL) { + thisarg = oarg; + if (manconf_output(&conf.output, + strsep(&oarg, ","), 0) == 0) + continue; + warnx("-O %s: Bad argument", thisarg); + return (int)MANDOCLEVEL_BADARG; + } } } - if (blk.buf) - free(blk.buf); - if (ln.buf) - free(ln.buf); - if (curp.outfree) - (*curp.outfree)(curp.outdata); - if (curp.mdoc) - mdoc_free(curp.mdoc); - if (curp.man) - man_free(curp.man); + if (outmode == OUTMODE_FLN || + outmode == OUTMODE_LST || + !isatty(STDOUT_FILENO)) + use_pager = 0; - return(rc ? EXIT_SUCCESS : EXIT_FAILURE); -} +#if HAVE_PLEDGE + if (!use_pager) + if (pledge("stdio rpath", NULL) == -1) + err((int)MANDOCLEVEL_SYSERR, "pledge"); +#endif + /* Parse arguments. */ -static void -version(void) -{ + if (argc > 0) { + argc -= optind; + argv += optind; + } + resp = NULL; - (void)printf("%s %s\n", progname, VERSION); - exit(EXIT_SUCCESS); -} + /* + * 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 + } -static void -usage(void) -{ + rc = MANDOCLEVEL_OK; - (void)fprintf(stderr, "usage: %s [-V] [-foption...] " - "[-mformat] [-Ooption] [-Toutput] " - "[-Werr...]\n", progname); - exit(EXIT_FAILURE); -} + /* man(1), whatis(1), apropos(1) */ + if (search.argmode != ARG_FILE) { + if (search.argmode == ARG_NAME && + outmode == OUTMODE_ONE) + search.firstmatch = 1; -static struct man * -man_init(struct curparse *curp) -{ - int pflags; - struct man_cb mancb; + /* Access the mandoc database. */ - mancb.man_err = merr; - mancb.man_warn = mwarn; + manconf_parse(&conf, conf_file, defpaths, auxpaths); + if ( ! mansearch(&search, &conf.manpath, + argc, argv, &res, &sz)) + usage(search.argmode); - /* Defaults from mandoc.1. */ + if (sz == 0) { + if (search.argmode == ARG_NAME) + fs_search(&search, &conf.manpath, + argc, argv, &res, &sz); + else + warnx("nothing appropriate"); + } - pflags = MAN_IGN_MACRO | MAN_IGN_ESCAPE | MAN_IGN_CHARS; + if (sz == 0) { + rc = MANDOCLEVEL_BADARG; + goto out; + } - if (curp->fflags & NO_IGN_MACRO) - pflags &= ~MAN_IGN_MACRO; - if (curp->fflags & NO_IGN_CHARS) - pflags &= ~MAN_IGN_CHARS; - if (curp->fflags & NO_IGN_ESCAPE) - pflags &= ~MAN_IGN_ESCAPE; + /* + * For standard man(1) and -a output mode, + * prepare for copying filename pointers + * into the program parameter array. + */ - return(man_alloc(curp, pflags, &mancb)); -} + if (outmode == OUTMODE_ONE) { + argc = 1; + best_prio = 20; + } else if (outmode == OUTMODE_ALL) + argc = (int)sz; + /* Iterate all matching manuals. */ -static struct mdoc * -mdoc_init(struct curparse *curp) -{ - int pflags; - struct mdoc_cb mdoccb; + 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; + } + } - mdoccb.mdoc_err = merr; - mdoccb.mdoc_warn = mwarn; + /* + * 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. + */ - /* Defaults from mandoc.1. */ + if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST) + goto out; + } - pflags = MDOC_IGN_MACRO | MDOC_IGN_ESCAPE | MDOC_IGN_CHARS; + /* mandoc(1) */ - if (curp->fflags & IGN_SCOPE) - pflags |= MDOC_IGN_SCOPE; - if (curp->fflags & NO_IGN_ESCAPE) - pflags &= ~MDOC_IGN_ESCAPE; - if (curp->fflags & NO_IGN_MACRO) - pflags &= ~MDOC_IGN_MACRO; - if (curp->fflags & NO_IGN_CHARS) - pflags &= ~MDOC_IGN_CHARS; +#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 - return(mdoc_alloc(curp, pflags, &mdoccb)); -} + if (search.argmode == ARG_FILE) + moptions(&options, auxpaths); + mchars_alloc(); + curp.mp = mparse_alloc(options, curp.mmin, mmsg, + curp.os_e, curp.os_s); -static int -ffile(struct buf *blk, struct buf *ln, - const char *file, struct curparse *curp) -{ - int c; + /* + * Conditionally start up the lookaside buffer before parsing. + */ + if (OUTT_MAN == curp.outtype) + mparse_keep(curp.mp); - curp->file = file; - if (-1 == (curp->fd = open(curp->file, O_RDONLY, 0))) { - perror(curp->file); - return(-1); + if (argc < 1) { + if (use_pager) + tag_files = tag_init(); + parse(&curp, STDIN_FILENO, ""); } - c = fdesc(blk, ln, curp); + 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 (-1 == close(curp->fd)) - perror(curp->file); + 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); - return(c); -} + 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; -static int -fdesc(struct buf *blk, struct buf *ln, struct curparse *curp) -{ - size_t sz; - ssize_t ssz; - struct stat st; - int j, i, pos, lnn, comment; - struct man *man; - struct mdoc *mdoc; + if (resp != NULL) + resp++; + else + argv++; + if (--argc) + mparse_reset(curp.mp); + } - sz = BUFSIZ; - man = NULL; - mdoc = NULL; + if (curp.outdata != NULL) { + switch (curp.outtype) { + case OUTT_HTML: + html_free(curp.outdata); + break; + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_ASCII: + ascii_free(curp.outdata); + break; + case OUTT_PDF: + case OUTT_PS: + pspdf_free(curp.outdata); + break; + default: + break; + } + } + mandoc_xr_free(); + mparse_free(curp.mp); + mchars_free(); +out: + if (search.argmode != ARG_FILE) { + manconf_free(&conf); + mansearch_free(res, sz); + } + + free(curp.os_s); + /* - * Two buffers: ln and buf. buf is the input buffer optimised - * here for each file's block size. ln is a line buffer. Both - * growable, hence passed in by ptr-ptr. + * When using a pager, finish writing both temporary files, + * fork it, wait for the user to close it, and clean up. */ - if (-1 == fstat(curp->fd, &st)) - perror(curp->file); - else if ((size_t)st.st_blksize > sz) - sz = st.st_blksize; + 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 (;;) { - if (sz > blk->sz) { - blk->buf = realloc(blk->buf, sz); - if (NULL == blk->buf) { - perror(NULL); - exit(EXIT_FAILURE); - } - blk->sz = sz; - } + /* Stop here until moved to the foreground. */ - /* Fill buf with file blocksize. */ + 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; + } - for (lnn = pos = comment = 0; ; ) { - if (-1 == (ssz = read(curp->fd, blk->buf, sz))) { - perror(curp->file); - return(-1); - } else if (0 == ssz) - break; + /* Once in the foreground, activate the pager. */ - /* Parse the read block into partial or full lines. */ + if (pager_pid) { + (void)tcsetpgrp(tag_files->ofd, pager_pid); + kill(pager_pid, SIGCONT); + } else + pager_pid = spawn_pager(tag_files); - for (i = 0; i < (int)ssz; i++) { - if (pos >= (int)ln->sz) { - ln->sz += 256; /* Step-size. */ - ln->buf = realloc(ln->buf, ln->sz); - if (NULL == ln->buf) { - perror(NULL); - return(EXIT_FAILURE); - } + /* 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; - if ('\n' != blk->buf[i]) { - if (comment) - continue; - ln->buf[pos++] = blk->buf[i]; + signum = WSTOPSIG(status); + } + tag_unlink(); + } - /* Handle in-line `\"' comments. */ + return (int)rc; +} - if (1 == pos || '\"' != ln->buf[pos - 1]) - continue; +static void +usage(enum argmode argmode) +{ - for (j = pos - 2; j >= 0; j--) - if ('\\' != ln->buf[j]) - break; + 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); +} - if ( ! ((pos - 2 - j) % 2)) - continue; +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 globres; + enum form form; - comment = 1; - pos -= 2; - continue; - } + 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); - /* Handle escaped `\\n' newlines. */ + 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 (pos > 0 && 0 == comment && - '\\' == ln->buf[pos - 1]) { - for (j = pos - 1; j >= 0; j--) - if ('\\' != ln->buf[j]) - break; - if ( ! ((pos - j) % 2)) { - pos--; - lnn++; - continue; - } - } + 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); + } - ln->buf[pos] = 0; - lnn++; + 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; - /* If unset, assign parser in pset(). */ +found: + warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s", + name, sec, BINM_MAKEWHATIS, paths->paths[ipath]); + if (res == NULL) + return 1; + *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage)); + page = *res + (*ressz - 1); + page->file = file; + page->names = NULL; + page->output = NULL; + page->ipath = ipath; + page->bits = NAME_FILE & NAME_MASK; + page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10; + page->form = form; + return 1; +} - if ( ! (man || mdoc) && ! pset(ln->buf, - pos, curp, &man, &mdoc)) - return(-1); +static int +fs_search(const struct mansearch *cfg, const struct manpaths *paths, + int argc, char **argv, struct manpage **res, size_t *ressz) +{ + const char *const sections[] = + {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"}; + const size_t nsec = sizeof(sections)/sizeof(sections[0]); - pos = comment = 0; + size_t ipath, isec, lastsz; - /* Pass down into parsers. */ + assert(cfg->argmode == ARG_NAME); - if (man && ! man_parseln(man, lnn, ln->buf)) - return(0); - if (mdoc && ! mdoc_parseln(mdoc, lnn, ln->buf)) - return(0); + if (res != NULL) + *res = NULL; + *ressz = lastsz = 0; + while (argc) { + for (ipath = 0; ipath < paths->sz; ipath++) { + if (cfg->sec != NULL) { + if (fs_lookup(paths, ipath, cfg->sec, + cfg->arch, *argv, res, ressz) && + cfg->firstmatch) + return 1; + } else for (isec = 0; isec < nsec; isec++) + if (fs_lookup(paths, ipath, sections[isec], + cfg->arch, *argv, res, ressz) && + cfg->firstmatch) + return 1; } + if (res != NULL && *ressz == lastsz) + warnx("No entry for %s in the manual.", *argv); + lastsz = *ressz; + argv++; + argc--; } + return 0; +} - /* NOTE a parser may not have been assigned, yet. */ +static void +parse(struct curparse *curp, int fd, const char *file) +{ + enum mandoclevel rctmp; + struct roff_man *man; - if ( ! (man || mdoc)) { - fprintf(stderr, "%s: Not a manual\n", curp->file); - return(0); - } + /* Begin by parsing the file itself. */ - if (mdoc && ! mdoc_endparse(mdoc)) - return(0); - if (man && ! man_endparse(man)) - return(0); + assert(file); + assert(fd >= 0); - /* If unset, allocate output dev now (if applicable). */ + rctmp = mparse_readfd(curp->mp, fd, file); + if (fd != STDIN_FILENO) + close(fd); + if (rc < rctmp) + rc = rctmp; - if ( ! (curp->outman && curp->outmdoc)) { + /* + * With -Wstop and warnings or errors of at least the requested + * level, do not produce output. + */ + + if (rctmp != MANDOCLEVEL_OK && curp->wstop) + return; + + if (curp->outdata == NULL) + outdata_alloc(curp); + + mparse_result(curp->mp, &man, NULL); + + /* Execute the out device, if it exists. */ + + if (man == NULL) + return; + if (curp->mmin < MANDOCERR_STYLE) + mandoc_xr_reset(); + if (man->macroset == MACROSET_MDOC) { + if (curp->outtype != OUTT_TREE || !curp->outopts->noval) + mdoc_validate(man); switch (curp->outtype) { - case (OUTT_HTML): - curp->outdata = html_alloc(curp->outopts); - curp->outman = html_man; - curp->outmdoc = html_mdoc; - curp->outfree = html_free; + case OUTT_HTML: + html_mdoc(curp->outdata, man); break; - case (OUTT_TREE): - curp->outman = tree_man; - curp->outmdoc = tree_mdoc; + case OUTT_TREE: + tree_mdoc(curp->outdata, man); break; - case (OUTT_LINT): + case OUTT_MAN: + man_mdoc(curp->outdata, man); break; + case OUTT_PDF: + case OUTT_ASCII: + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_PS: + terminal_mdoc(curp->outdata, man); + break; + case OUTT_MARKDOWN: + markdown_mdoc(curp->outdata, man); + break; default: - curp->outdata = ascii_alloc(); - curp->outman = terminal_man; - curp->outmdoc = terminal_mdoc; - curp->outfree = terminal_free; break; } } + if (man->macroset == MACROSET_MAN) { + if (curp->outtype != OUTT_TREE || !curp->outopts->noval) + man_validate(man); + switch (curp->outtype) { + case OUTT_HTML: + html_man(curp->outdata, man); + break; + case OUTT_TREE: + tree_man(curp->outdata, man); + break; + case OUTT_MAN: + man_man(curp->outdata, man); + break; + case OUTT_PDF: + case OUTT_ASCII: + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_PS: + terminal_man(curp->outdata, man); + break; + default: + break; + } + } + check_xr(file); + mparse_updaterc(curp->mp, &rc); +} - /* Execute the out device, if it exists. */ +static void +check_xr(const char *file) +{ + static struct manpaths paths; + struct mansearch search; + struct mandoc_xr *xr; + char *cp; + size_t sz; - if (man && curp->outman) - (*curp->outman)(curp->outdata, man); - if (mdoc && curp->outmdoc) - (*curp->outmdoc)(curp->outdata, mdoc); + if (paths.sz == 0) + manpath_base(&paths); - return(1); + for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) { + search.arch = NULL; + search.sec = xr->sec; + search.outkey = NULL; + search.argmode = ARG_NAME; + search.firstmatch = 1; + if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz)) + continue; + if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz)) + continue; + mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec); + mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE, + file, xr->line, xr->pos + 1, cp); + free(cp); + } } +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 int -pset(const char *buf, int pos, struct curparse *curp, - struct man **man, struct mdoc **mdoc) +static void +passthrough(const char *file, int fd, int synopsis_only) { - int i; + const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; + const char synr[] = "SYNOPSIS"; - /* - * Try to intuit which kind of manual parser should be used. If - * passed in by command-line (-man, -mdoc), then use that - * explicitly. If passed as -mandoc, then try to guess from the - * line: either skip dot-lines, use -mdoc when finding `.Dt', or - * default to -man, which is more lenient. - */ + FILE *stream; + const char *syscall; + char *line, *cp; + size_t linesz; + ssize_t len, written; + int print; - if (buf[0] == '.') { - for (i = 1; buf[i]; i++) - if (' ' != buf[i] && '\t' != buf[i]) - break; - if (0 == buf[i]) - return(1); + line = NULL; + linesz = 0; + + if (fflush(stdout) == EOF) { + syscall = "fflush"; + goto fail; } - switch (curp->inttype) { - case (INTT_MDOC): - if (NULL == curp->mdoc) - curp->mdoc = mdoc_init(curp); - if (NULL == (*mdoc = curp->mdoc)) - return(0); - curp->lastmdoc = *mdoc; - return(1); - case (INTT_MAN): - if (NULL == curp->man) - curp->man = man_init(curp); - if (NULL == (*man = curp->man)) - return(0); - curp->lastman = *man; - return(1); - default: - break; + if ((stream = fdopen(fd, "r")) == NULL) { + close(fd); + syscall = "fdopen"; + goto fail; } - if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) { - if (NULL == curp->mdoc) - curp->mdoc = mdoc_init(curp); - if (NULL == (*mdoc = curp->mdoc)) - return(0); - curp->lastmdoc = *mdoc; - return(1); - } + 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 (NULL == curp->man) - curp->man = man_init(curp); - if (NULL == (*man = curp->man)) - return(0); - curp->lastman = *man; - return(1); -} + 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 intt *tflags, char *arg) +koptions(int *options, char *arg) { - if (0 == strcmp(arg, "doc")) - *tflags = INTT_MDOC; - else if (0 == strcmp(arg, "andoc")) - *tflags = INTT_AUTO; - else if (0 == strcmp(arg, "an")) - *tflags = INTT_MAN; - else { - fprintf(stderr, "%s: Bad argument", arg); - return(0); + 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); + return 1; } +static void +moptions(int *options, char *arg) +{ + if (arg == NULL) + return; + if (strcmp(arg, "doc") == 0) + *options |= MPARSE_MDOC; + else if (strcmp(arg, "an") == 0) + *options |= MPARSE_MAN; +} + static int -toptions(enum outt *tflags, char *arg) +toptions(struct curparse *curp, char *arg) { if (0 == strcmp(arg, "ascii")) - *tflags = OUTT_ASCII; - else if (0 == strcmp(arg, "lint")) - *tflags = OUTT_LINT; - else if (0 == strcmp(arg, "tree")) - *tflags = OUTT_TREE; + curp->outtype = OUTT_ASCII; + else if (0 == strcmp(arg, "lint")) { + curp->outtype = OUTT_LINT; + curp->mmin = MANDOCERR_BASE; + } else if (0 == strcmp(arg, "tree")) + curp->outtype = OUTT_TREE; + else if (0 == strcmp(arg, "man")) + curp->outtype = OUTT_MAN; else if (0 == strcmp(arg, "html")) - *tflags = OUTT_HTML; + curp->outtype = OUTT_HTML; + else if (0 == strcmp(arg, "markdown")) + curp->outtype = OUTT_MARKDOWN; + else if (0 == strcmp(arg, "utf8")) + curp->outtype = OUTT_UTF8; + else if (0 == strcmp(arg, "locale")) + curp->outtype = OUTT_LOCALE; + else if (0 == strcmp(arg, "ps")) + curp->outtype = OUTT_PS; + else if (0 == strcmp(arg, "pdf")) + curp->outtype = OUTT_PDF; else { - fprintf(stderr, "%s: Bad argument", arg); - return(0); + warnx("-T %s: Bad argument", arg); + return 0; } - return(1); + return 1; } - static int -foptions(int *fflags, char *arg) +woptions(struct curparse *curp, char *arg) { char *v, *o; - const char *toks[8]; + const char *toks[11]; - toks[0] = "ign-scope"; - toks[1] = "no-ign-escape"; - toks[2] = "no-ign-macro"; - toks[3] = "no-ign-chars"; - toks[4] = "ign-errors"; - toks[5] = "strict"; - toks[6] = "ign-escape"; - toks[7] = NULL; + toks[0] = "stop"; + toks[1] = "all"; + toks[2] = "base"; + toks[3] = "style"; + toks[4] = "warning"; + toks[5] = "error"; + toks[6] = "unsupp"; + toks[7] = "fatal"; + toks[8] = "openbsd"; + toks[9] = "netbsd"; + toks[10] = NULL; while (*arg) { o = arg; - switch (getsubopt(&arg, UNCONST(toks), &v)) { - case (0): - *fflags |= IGN_SCOPE; + switch (getsubopt(&arg, (char * const *)toks, &v)) { + case 0: + curp->wstop = 1; break; - case (1): - *fflags |= NO_IGN_ESCAPE; + case 1: + case 2: + curp->mmin = MANDOCERR_BASE; break; - case (2): - *fflags |= NO_IGN_MACRO; + case 3: + curp->mmin = MANDOCERR_STYLE; break; - case (3): - *fflags |= NO_IGN_CHARS; + case 4: + curp->mmin = MANDOCERR_WARNING; break; - case (4): - *fflags |= IGN_ERRORS; + case 5: + curp->mmin = MANDOCERR_ERROR; break; - case (5): - *fflags |= NO_IGN_ESCAPE | - NO_IGN_MACRO | NO_IGN_CHARS; + case 6: + curp->mmin = MANDOCERR_UNSUPP; break; - case (6): - *fflags &= ~NO_IGN_ESCAPE; + case 7: + curp->mmin = MANDOCERR_MAX; break; + case 8: + curp->mmin = MANDOCERR_BASE; + curp->os_e = MANDOC_OS_OPENBSD; + break; + case 9: + curp->mmin = MANDOCERR_BASE; + curp->os_e = MANDOC_OS_NETBSD; + break; default: - fprintf(stderr, "%s: Bad argument", o); - return(0); + warnx("-W %s: Bad argument", o); + return 0; } } - - return(1); + return 1; } - -static int -woptions(int *wflags, char *arg) +static void +mmsg(enum mandocerr t, enum mandoclevel lvl, + const char *file, int line, int col, const char *msg) { - char *v, *o; - const char *toks[3]; + const char *mparse_msg; - toks[0] = "all"; - toks[1] = "error"; - toks[2] = NULL; + fprintf(stderr, "%s: %s:", getprogname(), + file == NULL ? "" : file); - while (*arg) { - o = arg; - switch (getsubopt(&arg, UNCONST(toks), &v)) { - case (0): - *wflags |= WARN_WALL; - break; - case (1): - *wflags |= WARN_WERR; - break; - default: - fprintf(stderr, "%s: Bad argument", o); - return(0); - } - } + if (line) + fprintf(stderr, "%d:%d:", line, col + 1); - return(1); -} + fprintf(stderr, " %s", + t < MANDOCERR_STYLE ? "BASE" : mparse_strlevel(lvl)); + if ((mparse_msg = mparse_strerror(t)) != NULL) + fprintf(stderr, ": %s", mparse_msg); -/* ARGSUSED */ -static int -merr(void *arg, int line, int col, const char *msg) + if (msg) + fprintf(stderr, ": %s", msg); + + fputc('\n', stderr); +} + +static pid_t +spawn_pager(struct tag_files *tag_files) { - struct curparse *curp; + 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; - curp = (struct curparse *)arg; + pager = getenv("MANPAGER"); + if (pager == NULL || *pager == '\0') + pager = getenv("PAGER"); + if (pager == NULL || *pager == '\0') + pager = "more -s"; + cp = mandoc_strdup(pager); - (void)fprintf(stderr, "%s:%d:%d: error: %s\n", - curp->file, line, col + 1, msg); + /* + * Parse the pager command into words. + * Intentionally do not do anything fancy here. + */ - return(0); -} + argc = 0; + while (argc + 4 < MAX_PAGER_ARGS) { + argv[argc++] = cp; + cp = strchr(cp, ' '); + if (cp == NULL) + break; + *cp++ = '\0'; + while (*cp == ' ') + cp++; + if (*cp == '\0') + break; + } + /* For less(1), use the tag file. */ -static int -mwarn(void *arg, int line, int col, const char *msg) -{ - struct curparse *curp; + 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; - curp = (struct curparse *)arg; + 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; + } - if ( ! (curp->wflags & WARN_WALL)) - return(1); + /* The child process becomes the pager. */ - (void)fprintf(stderr, "%s:%d:%d: warning: %s\n", - curp->file, line, col + 1, msg); + if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) + err((int)MANDOCLEVEL_SYSERR, "pager stdout"); + close(tag_files->ofd); + close(tag_files->tfd); - if ( ! (curp->wflags & WARN_WERR)) - return(1); - - return(0); -} + /* 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]); +}