=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.172 retrieving revision 1.238 diff -u -p -r1.172 -r1.238 --- mandoc/main.c 2014/03/23 11:25:26 1.172 +++ mandoc/main.c 2015/04/29 11:04:17 1.238 @@ -1,37 +1,47 @@ -/* $Id: main.c,v 1.172 2014/03/23 11:25:26 schwarze Exp $ */ +/* $Id: main.c,v 1.238 2015/04/29 11:04:17 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2010, 2011, 2012, 2014 Ingo Schwarze + * Copyright (c) 2008-2012 Kristaps Dzonsons + * Copyright (c) 2010-2012, 2014, 2015 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 +#include +#include +#include +#include #include #include #include #include #include -#include "mandoc.h" #include "mandoc_aux.h" -#include "main.h" +#include "mandoc.h" +#include "roff.h" #include "mdoc.h" #include "man.h" +#include "main.h" +#include "manconf.h" +#include "mansearch.h" #if !defined(__GNUC__) || (__GNUC__ < 2) # if !defined(lint) @@ -39,8 +49,17 @@ # endif #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ -typedef void (*out_mdoc)(void *, const struct mdoc *); -typedef void (*out_man)(void *, const struct man *); +enum outmode { + OUTMODE_DEF = 0, + OUTMODE_FLN, + OUTMODE_LST, + OUTMODE_ALL, + OUTMODE_INT, + OUTMODE_ONE +}; + +typedef void (*out_mdoc)(void *, const struct roff_man *); +typedef void (*out_man)(void *, const struct roff_man *); typedef void (*out_free)(void *); enum outt { @@ -50,7 +69,6 @@ enum outt { OUTT_TREE, /* -Ttree */ OUTT_MAN, /* -Tman */ OUTT_HTML, /* -Thtml */ - OUTT_XHTML, /* -Txhtml */ OUTT_LINT, /* -Tlint */ OUTT_PS, /* -Tps */ OUTT_PDF /* -Tpdf */ @@ -58,205 +76,619 @@ enum outt { struct curparse { struct mparse *mp; + struct mchars *mchars; /* character table */ enum mandoclevel wlevel; /* ignore messages below this */ int wstop; /* stop after a file with a warning */ - enum outt outtype; /* which output to use */ + enum outt outtype; /* which output to use */ out_mdoc outmdoc; /* mdoc output ptr */ - out_man outman; /* man output ptr */ + out_man outman; /* man output ptr */ out_free outfree; /* free output ptr */ void *outdata; /* data for output */ - char outopts[BUFSIZ]; /* buf of output opts */ + struct manoutput *outopts; /* output options */ }; +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 void handle_sigpipe(int); +static int koptions(int *, char *); +#if HAVE_SQLITE3 +int mandocdb(int, char**); +#endif static int moptions(int *, char *); static void mmsg(enum mandocerr, enum mandoclevel, const char *, int, int, const char *); -static void parse(struct curparse *, int, - const char *, enum mandoclevel *); +static void parse(struct curparse *, int, const char *); +static void passthrough(const char *, int, int); +static pid_t spawn_pager(void); 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 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 const char *progname; +static enum mandoclevel rc; + int main(int argc, char *argv[]) { - int c; + struct manconf conf; struct curparse curp; - int options; - enum mandoclevel rc; + struct mansearch search; + char *auxpaths; char *defos; + unsigned char *uc; + struct manpage *res, *resp; + char *conf_file, *defpaths; + size_t isec, i, sz; + int prio, best_prio; + char sec; + enum mandoclevel rctmp; + enum outmode outmode; + int fd; + int show_usage; + int options; + int c; + pid_t pager_pid; /* 0: don't use; 1: not yet spawned. */ - progname = strrchr(argv[0], '/'); - if (progname == NULL) + if (argc < 1) + progname = "mandoc"; + else if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; else ++progname; - memset(&curp, 0, sizeof(struct curparse)); +#if HAVE_SQLITE3 + if (strcmp(progname, BINM_MAKEWHATIS) == 0) + return(mandocdb(argc, argv)); +#endif - options = MPARSE_SO; - curp.outtype = OUTT_ASCII; - curp.wlevel = MANDOCLEVEL_FATAL; + /* 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:"))) + pager_pid = 1; + 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': + pager_pid = 0; + break; + case 'f': + search.argmode = ARG_WORD; + break; + case 'h': + conf.output.synopsisonly = 1; + pager_pid = 0; + outmode = OUTMODE_ALL; + break; + case 'I': if (strncmp(optarg, "os=", 3)) { - fprintf(stderr, "-I%s: Bad argument\n", - optarg); + fprintf(stderr, + "%s: -I %s: Bad argument\n", + progname, optarg); return((int)MANDOCLEVEL_BADARG); } if (defos) { - fprintf(stderr, "-I%s: Duplicate argument\n", - optarg); + fprintf(stderr, + "%s: -I %s: Duplicate argument\n", + progname, optarg); return((int)MANDOCLEVEL_BADARG); } defos = mandoc_strdup(optarg + 3); break; - case ('m'): - if ( ! moptions(&options, optarg)) + case 'i': + outmode = OUTMODE_INT; + break; + case 'K': + if ( ! koptions(&options, optarg)) return((int)MANDOCLEVEL_BADARG); break; - case ('O'): - (void)strlcat(curp.outopts, optarg, BUFSIZ); - (void)strlcat(curp.outopts, ",", BUFSIZ); + case 'k': + search.argmode = ARG_EXPR; break; - case ('T'): + 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); break; - case ('W'): + case 'W': if ( ! woptions(&curp, optarg)) 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(options, curp.wlevel, mmsg, defos); + if (show_usage) + usage(search.argmode); + /* Postprocess options. */ + + if (outmode == OUTMODE_DEF) { + switch (search.argmode) { + case ARG_FILE: + outmode = OUTMODE_ALL; + pager_pid = 0; + break; + case ARG_NAME: + outmode = OUTMODE_ONE; + break; + default: + outmode = OUTMODE_LST; + break; + } + } + + /* 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 + fprintf(stderr, + "%s: nothing appropriate\n", + progname); + } + + 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 = 10; + } 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. */ + isec = strcspn(res[i].file, "123456789"); + sec = res[i].file[isec]; + if ('\0' == sec) + continue; + prio = sec_prios[sec - '1']; + 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 (search.argmode == ARG_FILE && ! moptions(&options, auxpaths)) + return((int)MANDOCLEVEL_BADARG); + + curp.mchars = mchars_alloc(); + curp.mp = mparse_alloc(options, curp.wlevel, mmsg, + curp.mchars, 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 (pager_pid == 1 && isatty(STDOUT_FILENO)) + pager_pid = spawn_pager(); + parse(&curp, STDIN_FILENO, ""); + } - rc = MANDOCLEVEL_OK; + while (argc > 0) { + rctmp = mparse_open(curp.mp, &fd, + resp != NULL ? resp->file : *argv); + if (rc < rctmp) + rc = rctmp; - if (NULL == *argv) - parse(&curp, STDIN_FILENO, "", &rc); + if (fd != -1) { + if (pager_pid == 1 && isatty(STDOUT_FILENO)) + pager_pid = spawn_pager(); - while (*argv) { - parse(&curp, -1, *argv, &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); + + rctmp = mparse_wait(curp.mp); + if (rc < rctmp) + rc = rctmp; + + if (argc > 1 && curp.outtype <= OUTT_UTF8) + ascii_sepline(curp.outdata); + } + 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); + mparse_free(curp.mp); + mchars_free(curp.mchars); + +out: + if (search.argmode != ARG_FILE) { + manconf_free(&conf); +#if HAVE_SQLITE3 + mansearch_free(res, sz); + mansearch_setup(0); +#endif + } + free(defos); + /* + * If a pager is attached, flush the pipe leading to it + * and signal end of file such that the user can browse + * to the end. Then wait for the user to close the pager. + */ + + if (pager_pid != 0 && pager_pid != 1) { + fclose(stdout); + waitpid(pager_pid, NULL, 0); + } + 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.*", + paths->paths[ipath], sec, name); + globres = glob(file, 0, NULL, &globinfo); + if (globres != 0 && globres != GLOB_NOMATCH) + fprintf(stderr, "%s: %s: glob: %s\n", + progname, file, strerror(errno)); + free(file); + if (globres == 0) + file = mandoc_strdup(*globinfo.gl_pathv); + globfree(&globinfo); + if (globres != 0) + return(0); + +found: +#if HAVE_SQLITE3 + fprintf(stderr, "%s: outdated mandoc.db lacks %s(%s) entry, run " + "makewhatis %s\n", progname, name, sec, 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", "3p", "5", "7", "4", "9"}; + 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) + fprintf(stderr, + "%s: No entry for %s in the manual.\n", + progname, *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); - rc = mparse_readfd(curp->mp, fd, file); + rctmp = mparse_readfd(curp->mp, fd, file); + 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->outman && curp->outmdoc)) { switch (curp->outtype) { - case (OUTT_XHTML): - curp->outdata = xhtml_alloc(curp->outopts); + case OUTT_HTML: + curp->outdata = html_alloc(curp->mchars, + curp->outopts); curp->outfree = html_free; break; - case (OUTT_HTML): - curp->outdata = html_alloc(curp->outopts); - curp->outfree = html_free; - break; - case (OUTT_UTF8): - curp->outdata = utf8_alloc(curp->outopts); + case OUTT_UTF8: + curp->outdata = utf8_alloc(curp->mchars, + curp->outopts); curp->outfree = ascii_free; break; - case (OUTT_LOCALE): - curp->outdata = locale_alloc(curp->outopts); + case OUTT_LOCALE: + curp->outdata = locale_alloc(curp->mchars, + curp->outopts); curp->outfree = ascii_free; break; - case (OUTT_ASCII): - curp->outdata = ascii_alloc(curp->outopts); + case OUTT_ASCII: + curp->outdata = ascii_alloc(curp->mchars, + curp->outopts); curp->outfree = ascii_free; break; - case (OUTT_PDF): - curp->outdata = pdf_alloc(curp->outopts); + case OUTT_PDF: + curp->outdata = pdf_alloc(curp->mchars, + curp->outopts); curp->outfree = pspdf_free; break; - case (OUTT_PS): - curp->outdata = ps_alloc(curp->outopts); + case OUTT_PS: + curp->outdata = ps_alloc(curp->mchars, + curp->outopts); curp->outfree = pspdf_free; break; default: @@ -264,29 +696,27 @@ parse(struct curparse *curp, int fd, } switch (curp->outtype) { - case (OUTT_HTML): - /* FALLTHROUGH */ - case (OUTT_XHTML): + case OUTT_HTML: curp->outman = html_man; curp->outmdoc = html_mdoc; break; - case (OUTT_TREE): + case OUTT_TREE: curp->outman = tree_man; curp->outmdoc = tree_mdoc; break; - case (OUTT_MAN): + case OUTT_MAN: curp->outmdoc = man_mdoc; curp->outman = man_man; break; - case (OUTT_PDF): + case OUTT_PDF: /* FALLTHROUGH */ - case (OUTT_ASCII): + case OUTT_ASCII: /* FALLTHROUGH */ - case (OUTT_UTF8): + case OUTT_UTF8: /* FALLTHROUGH */ - case (OUTT_LOCALE): + case OUTT_LOCALE: /* FALLTHROUGH */ - case (OUTT_PS): + case OUTT_PS: curp->outman = terminal_man; curp->outmdoc = terminal_mdoc; break; @@ -295,35 +725,120 @@ parse(struct curparse *curp, int fd, } } - mparse_result(curp->mp, &mdoc, &man, NULL); + mparse_result(curp->mp, &man, NULL); /* Execute the out device, if it exists. */ - if (man && curp->outman) + if (man == NULL) + return; + if (curp->outmdoc != NULL && man->macroset == MACROSET_MDOC) + (*curp->outmdoc)(curp->outdata, man); + if (curp->outman != NULL && man->macroset == MACROSET_MAN) (*curp->outman)(curp->outdata, man); - if (mdoc && curp->outmdoc) - (*curp->outmdoc)(curp->outdata, mdoc); +} - cleanup: +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"; - mparse_reset(curp->mp); + FILE *stream; + const char *syscall; + char *line; + size_t len, off; + ssize_t nw; + int print; - if (*level < rc) - *level = rc; + fflush(stdout); + + if ((stream = fdopen(fd, "r")) == NULL) { + close(fd); + syscall = "fdopen"; + goto fail; + } + + print = 0; + while ((line = fgetln(stream, &len)) != NULL) { + if (synopsis_only) { + if (print) { + if ( ! isspace((unsigned char)*line)) + goto done; + while (len && + isspace((unsigned char)*line)) { + line++; + len--; + } + } else { + if ((len == sizeof(synb) && + ! strncmp(line, synb, len - 1)) || + (len == sizeof(synr) && + ! strncmp(line, synr, len - 1))) + print = 1; + continue; + } + } + for (off = 0; off < len; off += nw) + if ((nw = write(STDOUT_FILENO, line + off, + len - off)) == -1 || nw == 0) { + fclose(stream); + syscall = "write"; + goto fail; + } + } + + if (ferror(stream)) { + fclose(stream); + syscall = "fgetln"; + goto fail; + } + +done: + fclose(stream); + return; + +fail: + fprintf(stderr, "%s: %s: SYSERR: %s: %s", + progname, file, syscall, strerror(errno)); + if (rc < MANDOCLEVEL_SYSERR) + rc = MANDOCLEVEL_SYSERR; } static int +koptions(int *options, char *arg) +{ + + 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 { + fprintf(stderr, "%s: -K %s: Bad argument\n", + progname, arg); + return(0); + } + return(1); +} + +static int moptions(int *options, char *arg) { - if (0 == strcmp(arg, "doc")) + if (arg == NULL) + /* nothing to do */; + else if (0 == strcmp(arg, "doc")) *options |= MPARSE_MDOC; else if (0 == strcmp(arg, "andoc")) /* nothing to do */; else if (0 == strcmp(arg, "an")) *options |= MPARSE_MAN; else { - fprintf(stderr, "%s: Bad argument\n", arg); + fprintf(stderr, "%s: -m %s: Bad argument\n", + progname, arg); return(0); } @@ -350,13 +865,14 @@ 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); + fprintf(stderr, "%s: -T %s: Bad argument\n", + progname, arg); return(0); } @@ -367,34 +883,39 @@ 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): + case 0: curp->wstop = 1; break; - case (1): + case 1: /* FALLTHROUGH */ - case (2): + 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); + fprintf(stderr, "%s: -W %s: Bad argument\n", + progname, o); return(0); } } @@ -403,17 +924,110 @@ woptions(struct curparse *curp, char *arg) } 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:", progname, 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 void +handle_sigpipe(int signum) +{ + + exit((int)rc); +} + +static pid_t +spawn_pager(void) +{ +#define MAX_PAGER_ARGS 16 + char *argv[MAX_PAGER_ARGS]; + const char *pager; + char *cp; + int fildes[2]; + int argc; + pid_t pager_pid; + + if (pipe(fildes) == -1) { + fprintf(stderr, "%s: pipe: %s\n", + progname, strerror(errno)); + return(0); + } + + switch (pager_pid = fork()) { + case -1: + fprintf(stderr, "%s: fork: %s\n", + progname, strerror(errno)); + exit((int)MANDOCLEVEL_SYSERR); + case 0: + break; + default: + close(fildes[0]); + if (dup2(fildes[1], STDOUT_FILENO) == -1) { + fprintf(stderr, "%s: dup output: %s\n", + progname, strerror(errno)); + exit((int)MANDOCLEVEL_SYSERR); + } + close(fildes[1]); + signal(SIGPIPE, handle_sigpipe); + return(pager_pid); + } + + /* The child process becomes the pager. */ + + close(fildes[1]); + if (dup2(fildes[0], STDIN_FILENO) == -1) { + fprintf(stderr, "%s: dup input: %s\n", + progname, strerror(errno)); + exit((int)MANDOCLEVEL_SYSERR); + } + close(fildes[0]); + + 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 + 1 < MAX_PAGER_ARGS) { + argv[argc++] = cp; + cp = strchr(cp, ' '); + if (cp == NULL) + break; + *cp++ = '\0'; + while (*cp == ' ') + cp++; + if (*cp == '\0') + break; + } + argv[argc] = NULL; + + /* Hand over to the pager. */ + + execvp(argv[0], argv); + fprintf(stderr, "%s: exec %s: %s\n", + progname, argv[0], strerror(errno)); + exit((int)MANDOCLEVEL_SYSERR); }