=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.279 retrieving revision 1.352 diff -u -p -r1.279 -r1.352 --- mandoc/main.c 2017/01/09 17:49:57 1.279 +++ mandoc/main.c 2020/07/21 15:10:01 1.352 @@ -1,7 +1,7 @@ -/* $Id: main.c,v 1.279 2017/01/09 17:49:57 schwarze Exp $ */ +/* $Id: main.c,v 1.352 2020/07/21 15:10:01 schwarze Exp $ */ /* + * Copyright (c) 2010-2012, 2014-2020 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 @@ -15,11 +15,15 @@ * 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. + * + * Main program for mandoc(1), man(1), apropos(1), whatis(1), and help(1). */ #include "config.h" #include +#include #include /* MACHINE */ +#include #include #include @@ -30,6 +34,7 @@ #include #include #include +#include #if HAVE_SANDBOX_INIT #include #endif @@ -38,15 +43,19 @@ #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 "mandoc_parse.h" #include "tag.h" +#include "term_tag.h" #include "main.h" #include "manconf.h" #include "mansearch.h" @@ -56,7 +65,6 @@ enum outmode { OUTMODE_FLN, OUTMODE_LST, OUTMODE_ALL, - OUTMODE_INT, OUTMODE_ONE }; @@ -67,72 +75,77 @@ enum outt { OUTT_TREE, /* -Ttree */ OUTT_MAN, /* -Tman */ OUTT_HTML, /* -Thtml */ + OUTT_MARKDOWN, /* -Tmarkdown */ OUTT_LINT, /* -Tlint */ OUTT_PS, /* -Tps */ OUTT_PDF /* -Tpdf */ }; -struct curparse { - struct mparse *mp; - enum mandoclevel wlevel; /* ignore messages below this */ +struct outstate { + struct tag_files *tag_files; /* Tagging state variables. */ + void *outdata; /* data for output */ + int use_pager; int wstop; /* stop after a file with a warning */ + int had_output; /* Some output was generated. */ enum outt outtype; /* which output to use */ - void *outdata; /* data for output */ - struct manoutput *outopts; /* output options */ }; int mandocdb(int, char *[]); +static void check_xr(void); 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**, +static int fs_search(const struct mansearch *, + const struct manpaths *, const 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 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 void glob_esc(char **, const char *, const char *); +static void outdata_alloc(struct outstate *, struct manoutput *); +static void parse(struct mparse *, int, const char *, + struct outstate *, struct manoutput *); +static void passthrough(int, int); +static void process_onefile(struct mparse *, struct manpage *, + int, struct outstate *, struct manconf *); +static void run_pager(struct outstate *, char *); +static pid_t spawn_pager(struct outstate *, char *); +static void usage(enum argmode) __attribute__((__noreturn__)); +static int woptions(char *, enum mandoc_os *, int *); 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[]) { - struct manconf conf; - struct curparse curp; - struct mansearch search; - struct tag_files *tag_files; - const char *progname; - char *auxpaths; - char *defos; + struct manconf conf; /* Manpaths and output options. */ + struct outstate outst; /* Output state. */ + struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */ + struct mansearch search; /* Search options. */ + struct manpage *res; /* Complete list of search results. */ + struct manpage *resn; /* Search results for one name. */ + struct mparse *mp; /* Opaque parser object. */ + const char *conf_file; /* -C: alternate config file. */ + const char *os_s; /* -I: Operating system for display. */ + const char *progname, *sec; + char *defpaths; /* -M: override manpaths. */ + char *auxpaths; /* -m: additional manpaths. */ + char *oarg; /* -O: output option string. */ + char *tagarg; /* -O tag: default value. */ unsigned char *uc; - struct manpage *res, *resp; - char *conf_file, *defpaths; - const char *sec; - size_t i, sz; + size_t ressz; /* Number of elements in res[]. */ + size_t resnsz; /* Number of elements in resn[]. */ + size_t i, ib, ssz; + int options; /* Parser options. */ + int show_usage; /* Invalid argument: give up. */ int prio, best_prio; - enum outmode outmode; - int fd; - int show_usage; - int options; - int use_pager; - int status, signum; + int startdir; int c; - pid_t pager_pid, tc_pgid, man_pgid, pid; + enum mandoc_os os_e; /* Check base system conventions. */ + enum outmode outmode; /* According to command line. */ #if HAVE_PROGNAME progname = getprogname(); @@ -146,15 +159,17 @@ main(int argc, char *argv[]) setprogname(progname); #endif + mandoc_msg_setoutfile(stderr); 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 flock", NULL) == -1) - err((int)MANDOCLEVEL_SYSERR, "pledge"); + if (pledge("stdio rpath wpath cpath tmppath tty proc exec", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno)); + return mandoc_msg_getrc(); + } #endif - #if HAVE_SANDBOX_INIT if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1) errx((int)MANDOCLEVEL_SYSERR, "sandbox_init"); @@ -163,11 +178,12 @@ main(int argc, char *argv[]) /* Search options. */ memset(&conf, 0, sizeof(conf)); - conf_file = defpaths = NULL; - auxpaths = NULL; + conf_file = NULL; + defpaths = auxpaths = NULL; memset(&search, 0, sizeof(struct mansearch)); search.outkey = "Nd"; + oarg = NULL; if (strcmp(progname, BINM_MAN) == 0) search.argmode = ARG_NAME; @@ -180,22 +196,28 @@ main(int argc, char *argv[]) else search.argmode = ARG_FILE; - /* Parser and formatter options. */ + /* Parser 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; + os_e = MANDOC_OS_OTHER; + os_s = NULL; - use_pager = 1; - tag_files = NULL; + /* Formatter options. */ + + memset(&outst, 0, sizeof(outst)); + outst.tag_files = NULL; + outst.outtype = OUTT_LOCALE; + outst.use_pager = 1; + show_usage = 0; outmode = OUTMODE_DEF; - while (-1 != (c = getopt(argc, argv, - "aC:cfhI:iK:klM:m:O:S:s:T:VW:w"))) { + 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 'a': outmode = OUTMODE_ALL; @@ -204,33 +226,40 @@ main(int argc, char *argv[]) conf_file = optarg; break; case 'c': - use_pager = 0; + outst.use_pager = 0; break; case 'f': search.argmode = ARG_WORD; break; case 'h': conf.output.synopsisonly = 1; - use_pager = 0; + outst.use_pager = 0; outmode = OUTMODE_ALL; break; case 'I': - if (strncmp(optarg, "os=", 3)) { - warnx("-I %s: Bad argument", optarg); - return (int)MANDOCLEVEL_BADARG; + if (strncmp(optarg, "os=", 3) != 0) { + mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, + "-I %s", optarg); + return mandoc_msg_getrc(); } - if (defos) { - warnx("-I %s: Duplicate argument", optarg); - return (int)MANDOCLEVEL_BADARG; + if (os_s != NULL) { + mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0, + "-I %s", optarg); + return mandoc_msg_getrc(); } - defos = mandoc_strdup(optarg + 3); + os_s = optarg + 3; break; - case 'i': - outmode = OUTMODE_INT; - break; case 'K': - if ( ! koptions(&options, optarg)) - return (int)MANDOCLEVEL_BADARG; + options &= ~(MPARSE_UTF8 | MPARSE_LATIN1); + if (strcmp(optarg, "utf-8") == 0) + options |= MPARSE_UTF8; + else if (strcmp(optarg, "iso-8859-1") == 0) + options |= MPARSE_LATIN1; + else if (strcmp(optarg, "us-ascii") != 0) { + mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, + "-K %s", optarg); + return mandoc_msg_getrc(); + } break; case 'k': search.argmode = ARG_EXPR; @@ -246,10 +275,7 @@ main(int argc, char *argv[]) auxpaths = optarg; break; case 'O': - search.outkey = optarg; - while (optarg != NULL) - manconf_output(&conf.output, - strsep(&optarg, ",")); + oarg = optarg; break; case 'S': search.arch = optarg; @@ -258,12 +284,37 @@ main(int argc, char *argv[]) search.sec = optarg; break; case 'T': - if ( ! toptions(&curp, optarg)) - return (int)MANDOCLEVEL_BADARG; + if (strcmp(optarg, "ascii") == 0) + outst.outtype = OUTT_ASCII; + else if (strcmp(optarg, "lint") == 0) { + outst.outtype = OUTT_LINT; + mandoc_msg_setoutfile(stdout); + mandoc_msg_setmin(MANDOCERR_BASE); + } else if (strcmp(optarg, "tree") == 0) + outst.outtype = OUTT_TREE; + else if (strcmp(optarg, "man") == 0) + outst.outtype = OUTT_MAN; + else if (strcmp(optarg, "html") == 0) + outst.outtype = OUTT_HTML; + else if (strcmp(optarg, "markdown") == 0) + outst.outtype = OUTT_MARKDOWN; + else if (strcmp(optarg, "utf8") == 0) + outst.outtype = OUTT_UTF8; + else if (strcmp(optarg, "locale") == 0) + outst.outtype = OUTT_LOCALE; + else if (strcmp(optarg, "ps") == 0) + outst.outtype = OUTT_PS; + else if (strcmp(optarg, "pdf") == 0) + outst.outtype = OUTT_PDF; + else { + mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, + "-T %s", optarg); + return mandoc_msg_getrc(); + } break; case 'W': - if ( ! woptions(&curp, optarg)) - return (int)MANDOCLEVEL_BADARG; + if (woptions(optarg, &os_e, &outst.wstop) == -1) + return mandoc_msg_getrc(); break; case 'w': outmode = OUTMODE_FLN; @@ -279,11 +330,12 @@ main(int argc, char *argv[]) /* Postprocess options. */ - if (outmode == OUTMODE_DEF) { + switch (outmode) { + case OUTMODE_DEF: switch (search.argmode) { case ARG_FILE: outmode = OUTMODE_ALL; - use_pager = 0; + outst.use_pager = 0; break; case ARG_NAME: outmode = OUTMODE_ONE; @@ -292,17 +344,62 @@ main(int argc, char *argv[]) outmode = OUTMODE_LST; break; } + break; + case OUTMODE_FLN: + if (search.argmode == ARG_FILE) + outmode = OUTMODE_ALL; + break; + case OUTMODE_ALL: + break; + case OUTMODE_LST: + case OUTMODE_ONE: + abort(); } + if (oarg != NULL) { + if (outmode == OUTMODE_LST) + search.outkey = oarg; + else { + while (oarg != NULL) { + if (manconf_output(&conf.output, + strsep(&oarg, ","), 0) == -1) + return mandoc_msg_getrc(); + } + } + } + + if (outst.outtype != OUTT_TREE || conf.output.noval == 0) + options |= MPARSE_VALIDATE; + if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST || - !isatty(STDOUT_FILENO)) - use_pager = 0; + (conf.output.outfilename == NULL && + conf.output.tagfilename == NULL && + isatty(STDOUT_FILENO) == 0)) + outst.use_pager = 0; + if (outst.use_pager && + (conf.output.width == 0 || conf.output.indent == 0) && + ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 && + ws.ws_col > 1) { + if (conf.output.width == 0 && ws.ws_col < 79) + conf.output.width = ws.ws_col - 1; + if (conf.output.indent == 0 && ws.ws_col < 66) + conf.output.indent = 3; + } + #if HAVE_PLEDGE - if (!use_pager) - if (pledge("stdio rpath flock", NULL) == -1) - err((int)MANDOCLEVEL_SYSERR, "pledge"); + if (outst.use_pager == 0) + c = pledge("stdio rpath", NULL); + else if (conf.output.outfilename != NULL || + conf.output.tagfilename != NULL) + c = pledge("stdio rpath wpath cpath", NULL); + else + c = pledge("stdio rpath tmppath tty proc exec", NULL); + if (c == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno)); + return mandoc_msg_getrc(); + } #endif /* Parse arguments. */ @@ -311,11 +408,10 @@ main(int argc, char *argv[]) argc -= optind; argv += optind; } - resp = NULL; /* - * Quirks for help(1) - * and for a man(1) section argument without -s. + * Quirks for help(1) and man(1), + * in particular for a section argument without -s. */ if (search.argmode == ARG_NAME) { @@ -327,7 +423,7 @@ main(int argc, char *argv[]) } else if (argc > 1 && ((uc = (unsigned char *)argv[0]) != NULL) && ((isdigit(uc[0]) && (uc[1] == '\0' || - (isalpha(uc[1]) && uc[2] == '\0'))) || + isalpha(uc[1]))) || (uc[0] == 'n' && uc[1] == '\0'))) { search.sec = (char *)uc; argv++; @@ -339,265 +435,251 @@ main(int argc, char *argv[]) if (search.arch == NULL) search.arch = MACHINE; #endif + if (outmode == OUTMODE_ONE) + search.firstmatch = 1; } - rc = MANDOCLEVEL_OK; + /* + * Use the first argument for -O tag in addition to + * using it as a search term for man(1) or apropos(1). + */ - /* man(1), whatis(1), apropos(1) */ + if (conf.output.tag != NULL && *conf.output.tag == '\0') { + tagarg = argc > 0 && search.argmode == ARG_EXPR ? + strchr(*argv, '=') : NULL; + conf.output.tag = tagarg == NULL ? *argv : tagarg + 1; + } - if (search.argmode != ARG_FILE) { - if (search.argmode == ARG_NAME && - outmode == OUTMODE_ONE) - search.firstmatch = 1; + /* Read the configuration file. */ - /* Access the mandoc database. */ - + if (search.argmode != ARG_FILE) manconf_parse(&conf, conf_file, defpaths, auxpaths); - if ( ! mansearch(&search, &conf.manpath, - argc, argv, &res, &sz)) - usage(search.argmode); - if (sz == 0) { - if (search.argmode == ARG_NAME) - fs_search(&search, &conf.manpath, - argc, argv, &res, &sz); - else - warnx("nothing appropriate"); - } + /* man(1): Resolve each name individually. */ - if (sz == 0) { - rc = MANDOCLEVEL_BADARG; - goto out; + if (search.argmode == ARG_NAME) { + if (argc < 1) { + if (outmode != OUTMODE_FLN) + usage(ARG_NAME); + if (conf.manpath.sz == 0) { + warnx("The manpath is empty."); + mandoc_msg_setrc(MANDOCLEVEL_BADARG); + } else { + for (i = 0; i + 1 < conf.manpath.sz; i++) + printf("%s:", conf.manpath.paths[i]); + printf("%s\n", conf.manpath.paths[i]); + } + manconf_free(&conf); + return (int)mandoc_msg_getrc(); } + for (res = NULL, ressz = 0; argc > 0; argc--, argv++) { + (void)mansearch(&search, &conf.manpath, + 1, argv, &resn, &resnsz); + if (resnsz == 0) + (void)fs_search(&search, &conf.manpath, + *argv, &resn, &resnsz); + if (resnsz == 0 && strchr(*argv, '/') == NULL) { + if (search.arch != NULL && + arch_valid(search.arch, OSENUM) == 0) + warnx("Unknown architecture \"%s\".", + search.arch); + else if (search.sec != NULL) + warnx("No entry for %s in " + "section %s of the manual.", + *argv, search.sec); + else + warnx("No entry for %s in " + "the manual.", *argv); + mandoc_msg_setrc(MANDOCLEVEL_BADARG); + continue; + } + if (resnsz == 0) { + if (access(*argv, R_OK) == -1) { + mandoc_msg_setinfilename(*argv); + mandoc_msg(MANDOCERR_BADARG_BAD, + 0, 0, "%s", strerror(errno)); + mandoc_msg_setinfilename(NULL); + continue; + } + resnsz = 1; + resn = mandoc_calloc(resnsz, sizeof(*res)); + resn->file = mandoc_strdup(*argv); + resn->ipath = SIZE_MAX; + resn->form = FORM_SRC; + } + if (outmode != OUTMODE_ONE || resnsz == 1) { + res = mandoc_reallocarray(res, + ressz + resnsz, sizeof(*res)); + memcpy(res + ressz, resn, + sizeof(*resn) * resnsz); + ressz += resnsz; + continue; + } - /* - * For standard man(1) and -a output mode, - * prepare for copying filename pointers - * into the program parameter array. - */ + /* Search for the best section. */ - 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; + best_prio = 40; + for (ib = i = 0; i < resnsz; i++) { + sec = resn[i].file; sec += strcspn(sec, "123456789"); if (sec[0] == '\0') - continue; + continue; /* No section at all. */ prio = sec_prios[sec[0] - '1']; - if (sec[1] != '/') - prio += 10; + if (search.sec != NULL) { + ssz = strlen(search.sec); + if (strncmp(sec, search.sec, ssz) == 0) + sec += ssz; + } else + sec++; /* Prefer without suffix. */ + if (*sec != '/') + prio += 10; /* Wrong dir name. */ + if (search.sec != NULL && + (strlen(sec) <= ssz + 3 || + strcmp(sec + strlen(sec) - ssz, + search.sec) != 0)) + prio += 20; /* Wrong file ext. */ if (prio >= best_prio) continue; best_prio = prio; - resp = res + i; + ib = i; } + res = mandoc_reallocarray(res, ressz + 1, + sizeof(*res)); + memcpy(res + ressz++, resn + ib, sizeof(*resn)); } - /* - * 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. - */ + /* apropos(1), whatis(1): Process the full search expression. */ - if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST) + } else if (search.argmode != ARG_FILE) { + if (mansearch(&search, &conf.manpath, + argc, argv, &res, &ressz) == 0) + usage(search.argmode); + + if (ressz == 0) { + warnx("nothing appropriate"); + mandoc_msg_setrc(MANDOCLEVEL_BADARG); goto out; - } + } - /* mandoc(1) */ + /* mandoc(1): Take command line arguments as file names. */ -#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"); + ressz = argc > 0 ? argc : 1; + res = mandoc_calloc(ressz, sizeof(*res)); + for (i = 0; i < ressz; i++) { + if (argc > 0) + res[i].file = mandoc_strdup(argv[i]); + res[i].ipath = SIZE_MAX; + res[i].form = FORM_SRC; + } } -#endif - if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths)) - return (int)MANDOCLEVEL_BADARG; + switch (outmode) { + case OUTMODE_FLN: + for (i = 0; i < ressz; i++) + puts(res[i].file); + goto out; + case OUTMODE_LST: + for (i = 0; i < ressz; i++) + printf("%s - %s\n", res[i].names, + res[i].output == NULL ? "" : + res[i].output); + goto out; + default: + break; + } + if (search.argmode == ARG_FILE && auxpaths != NULL) { + if (strcmp(auxpaths, "doc") == 0) + options |= MPARSE_MDOC; + else if (strcmp(auxpaths, "an") == 0) + options |= MPARSE_MAN; + } + mchars_alloc(); - curp.mp = mparse_alloc(options, curp.wlevel, mmsg, defos); + mp = mparse_alloc(options, os_e, os_s); /* - * Conditionally start up the lookaside buffer before parsing. + * Remember the original working directory, if possible. + * This will be needed if some names on the command line + * are page names and some are relative file names. + * Do not error out if the current directory is not + * readable: Maybe it won't be needed after all. */ - if (OUTT_MAN == curp.outtype) - mparse_keep(curp.mp); - - if (argc < 1) { - if (use_pager) - tag_files = tag_init(); - parse(&curp, STDIN_FILENO, ""); - } - - 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 (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); - - 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) + startdir = open(".", O_RDONLY | O_DIRECTORY); + for (i = 0; i < ressz; i++) { + process_onefile(mp, res + i, startdir, &outst, &conf); + if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) break; - - if (resp != NULL) - resp++; - else - argv++; - if (--argc) - mparse_reset(curp.mp); } - - if (curp.outdata != NULL) { - switch (curp.outtype) { + if (startdir != -1) { + (void)fchdir(startdir); + close(startdir); + } + if (conf.output.tag != NULL && conf.output.tag_found == 0) { + mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", conf.output.tag); + conf.output.tag = NULL; + } + if (outst.outdata != NULL) { + switch (outst.outtype) { case OUTT_HTML: - html_free(curp.outdata); + html_free(outst.outdata); break; case OUTT_UTF8: case OUTT_LOCALE: case OUTT_ASCII: - ascii_free(curp.outdata); + ascii_free(outst.outdata); break; case OUTT_PDF: case OUTT_PS: - pspdf_free(curp.outdata); + pspdf_free(outst.outdata); break; default: break; } } - mparse_free(curp.mp); + mandoc_xr_free(); + mparse_free(mp); mchars_free(); out: - if (search.argmode != ARG_FILE) { + mansearch_free(res, ressz); + if (search.argmode != ARG_FILE) manconf_free(&conf); - mansearch_free(res, sz); - } - free(defos); + if (outst.tag_files != NULL) { + if (term_tag_close() != -1 && + conf.output.outfilename == NULL && + conf.output.tagfilename == NULL) + run_pager(&outst, conf.output.tag); + term_tag_unlink(); + } else if (outst.had_output && outst.outtype != OUTT_LINT) + mandoc_msg_summary(); - /* - * 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; + return (int)mandoc_msg_getrc(); } static void usage(enum argmode argmode) { - switch (argmode) { case ARG_FILE: - fputs("usage: mandoc [-acfhkl] [-I os=name] " - "[-K encoding] [-mformat] [-O option]\n" + 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] [-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); + 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 [-acfhklw] [-C file] " + 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 [-acfhklw] [-C file] " + fputs("usage: apropos [-afk] [-C file] " "[-M path] [-m path] [-O outkey] [-S arch]\n" "\t [-s section] expression ...\n", stderr); break; @@ -605,27 +687,44 @@ usage(enum argmode argmode) exit((int)MANDOCLEVEL_BADARG); } +static void +glob_esc(char **dst, const char *src, const char *suffix) +{ + while (*src != '\0') { + if (strchr("*?[", *src) != NULL) + *(*dst)++ = '\\'; + *(*dst)++ = *src++; + } + while (*suffix != '\0') + *(*dst)++ = *suffix++; +} + 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) { + struct stat sb; glob_t globinfo; struct manpage *page; - char *file; + char *file, *cp; int globres; enum form form; + const char *const slman = "/man"; + const char *const slash = "/"; + const char *const sglob = ".[01-9]*"; + form = FORM_SRC; mandoc_asprintf(&file, "%s/man%s/%s.%s", paths->paths[ipath], sec, name, sec); - if (access(file, R_OK) != -1) + if (stat(file, &sb) != -1) goto found; free(file); mandoc_asprintf(&file, "%s/cat%s/%s.0", paths->paths[ipath], sec, name); - if (access(file, R_OK) != -1) { + if (stat(file, &sb) != -1) { form = FORM_CAT; goto found; } @@ -634,177 +733,301 @@ fs_lookup(const struct manpaths *paths, size_t ipath, 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) + if (stat(file, &sb) != -1) goto found; free(file); } - mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*", - paths->paths[ipath], sec, name); + cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 + + strlen(slman) + strlen(sec) * 2 + strlen(slash) + + strlen(name) * 2 + strlen(sglob) + 1); + glob_esc(&cp, paths->paths[ipath], slman); + glob_esc(&cp, sec, slash); + glob_esc(&cp, name, sglob); + *cp = '\0'; globres = glob(file, 0, NULL, &globinfo); if (globres != 0 && globres != GLOB_NOMATCH) - warn("%s: glob", file); + mandoc_msg(MANDOCERR_GLOB, 0, 0, + "%s: %s", file, strerror(errno)); free(file); if (globres == 0) file = mandoc_strdup(*globinfo.gl_pathv); globfree(&globinfo); - if (globres != 0) - return 0; + if (globres == 0) { + if (stat(file, &sb) != -1) + goto found; + free(file); + } + if (res != NULL || ipath + 1 != paths->sz) + return -1; + mandoc_asprintf(&file, "%s.%s", name, sec); + globres = stat(file, &sb); + free(file); + return globres; + found: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s", name, sec, BINM_MAKEWHATIS, paths->paths[ipath]); - *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage)); + if (res == NULL) { + free(file); + return 0; + } + *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res)); page = *res + (*ressz - 1); page->file = file; page->names = NULL; page->output = NULL; - page->ipath = ipath; page->bits = NAME_FILE & NAME_MASK; + page->ipath = ipath; page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10; page->form = form; - return 1; + return 0; } -static void +static int fs_search(const struct mansearch *cfg, const struct manpaths *paths, - int argc, char **argv, struct manpage **res, size_t *ressz) + const char *name, struct manpage **res, size_t *ressz) { const char *const sections[] = {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"}; const size_t nsec = sizeof(sections)/sizeof(sections[0]); - size_t ipath, isec, lastsz; + size_t ipath, isec; 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 (res != NULL) + *res = NULL; + *ressz = 0; + for (ipath = 0; ipath < paths->sz; ipath++) { + if (cfg->sec != NULL) { + if (fs_lookup(paths, ipath, cfg->sec, cfg->arch, + name, res, ressz) != -1 && cfg->firstmatch) + return 0; + } else { + for (isec = 0; isec < nsec; isec++) if (fs_lookup(paths, ipath, sections[isec], - cfg->arch, *argv, res, ressz) && + cfg->arch, name, res, ressz) != -1 && cfg->firstmatch) - return; + return 0; } - if (*ressz == lastsz) - warnx("No entry for %s in the manual.", *argv); - lastsz = *ressz; - argv++; - argc--; } + return -1; } static void -parse(struct curparse *curp, int fd, const char *file) +process_onefile(struct mparse *mp, struct manpage *resp, int startdir, + struct outstate *outst, struct manconf *conf) { - enum mandoclevel rctmp; - struct roff_man *man; + int fd; - /* Begin by parsing the file itself. */ + /* + * Changing directories is not needed in ARG_FILE mode. + * Do it on a best-effort basis. Even in case of + * failure, some functionality may still work. + */ + if (resp->ipath != SIZE_MAX) + (void)chdir(conf->manpath.paths[resp->ipath]); + else if (startdir != -1) + (void)fchdir(startdir); - assert(file); + mandoc_msg_setinfilename(resp->file); + if (resp->file != NULL) { + if ((fd = mparse_open(mp, resp->file)) == -1) { + mandoc_msg(resp->ipath == SIZE_MAX ? + MANDOCERR_BADARG_BAD : MANDOCERR_OPEN, + 0, 0, "%s", strerror(errno)); + mandoc_msg_setinfilename(NULL); + return; + } + } else + fd = STDIN_FILENO; + + if (outst->use_pager) { + outst->use_pager = 0; + outst->tag_files = term_tag_init(conf->output.outfilename, + conf->output.tagfilename); + if ((conf->output.outfilename != NULL || + conf->output.tagfilename != NULL) && + pledge("stdio rpath cpath", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + exit(mandoc_msg_getrc()); + } + } + if (outst->had_output && outst->outtype <= OUTT_UTF8) { + if (outst->outdata == NULL) + outdata_alloc(outst, &conf->output); + terminal_sepline(outst->outdata); + } + + if (resp->form == FORM_SRC) + parse(mp, fd, resp->file, outst, &conf->output); + else { + passthrough(fd, conf->output.synopsisonly); + outst->had_output = 1; + } + + if (ferror(stdout)) { + if (outst->tag_files != NULL) { + mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s", + outst->tag_files->ofn, strerror(errno)); + term_tag_unlink(); + outst->tag_files = NULL; + } else + mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s", + strerror(errno)); + } + mandoc_msg_setinfilename(NULL); +} + +static void +parse(struct mparse *mp, int fd, const char *file, + struct outstate *outst, struct manoutput *outconf) +{ + static int previous; + struct roff_meta *meta; + assert(fd >= 0); + if (file == NULL) + file = ""; - rctmp = mparse_readfd(curp->mp, fd, file); + if (previous) + mparse_reset(mp); + else + previous = 1; + + mparse_readfd(mp, fd, file); if (fd != STDIN_FILENO) close(fd); - if (rc < rctmp) - rc = rctmp; /* * With -Wstop and warnings or errors of at least the requested * level, do not produce output. */ - if (rctmp != MANDOCLEVEL_OK && curp->wstop) + if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) return; - if (curp->outdata == NULL) - outdata_alloc(curp); + if (outst->outdata == NULL) + outdata_alloc(outst, outconf); + else if (outst->outtype == OUTT_HTML) + html_reset(outst->outdata); - mparse_result(curp->mp, &man, NULL); + mandoc_xr_reset(); + meta = mparse_result(mp); /* Execute the out device, if it exists. */ - if (man == NULL) - return; - if (man->macroset == MACROSET_MDOC) { - mdoc_validate(man); - switch (curp->outtype) { + outst->had_output = 1; + if (meta->macroset == MACROSET_MDOC) { + switch (outst->outtype) { case OUTT_HTML: - html_mdoc(curp->outdata, man); + html_mdoc(outst->outdata, meta); break; case OUTT_TREE: - tree_mdoc(curp->outdata, man); + tree_mdoc(outst->outdata, meta); break; case OUTT_MAN: - man_mdoc(curp->outdata, man); + man_mdoc(outst->outdata, meta); break; case OUTT_PDF: case OUTT_ASCII: case OUTT_UTF8: case OUTT_LOCALE: case OUTT_PS: - terminal_mdoc(curp->outdata, man); + terminal_mdoc(outst->outdata, meta); break; + case OUTT_MARKDOWN: + markdown_mdoc(outst->outdata, meta); + break; default: break; } } - if (man->macroset == MACROSET_MAN) { - man_validate(man); - switch (curp->outtype) { + if (meta->macroset == MACROSET_MAN) { + switch (outst->outtype) { case OUTT_HTML: - html_man(curp->outdata, man); + html_man(outst->outdata, meta); break; case OUTT_TREE: - tree_man(curp->outdata, man); + tree_man(outst->outdata, meta); break; case OUTT_MAN: - man_man(curp->outdata, man); + mparse_copy(mp); break; case OUTT_PDF: case OUTT_ASCII: case OUTT_UTF8: case OUTT_LOCALE: case OUTT_PS: - terminal_man(curp->outdata, man); + terminal_man(outst->outdata, meta); break; default: break; } } - mparse_updaterc(curp->mp, &rc); + if (outconf->tag != NULL && outconf->tag_found == 0 && + tag_exists(outconf->tag)) + outconf->tag_found = 1; + if (mandoc_msg_getmin() < MANDOCERR_STYLE) + check_xr(); } static void -outdata_alloc(struct curparse *curp) +check_xr(void) { - switch (curp->outtype) { + static struct manpaths paths; + struct mansearch search; + struct mandoc_xr *xr; + size_t sz; + + if (paths.sz == 0) + manpath_base(&paths); + + for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) { + if (xr->line == -1) + continue; + 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, xr->name, NULL, &sz) != -1) + continue; + if (xr->count == 1) + mandoc_msg(MANDOCERR_XR_BAD, xr->line, + xr->pos + 1, "Xr %s %s", xr->name, xr->sec); + else + mandoc_msg(MANDOCERR_XR_BAD, xr->line, + xr->pos + 1, "Xr %s %s (%d times)", + xr->name, xr->sec, xr->count); + } +} + +static void +outdata_alloc(struct outstate *outst, struct manoutput *outconf) +{ + switch (outst->outtype) { case OUTT_HTML: - curp->outdata = html_alloc(curp->outopts); + outst->outdata = html_alloc(outconf); break; case OUTT_UTF8: - curp->outdata = utf8_alloc(curp->outopts); + outst->outdata = utf8_alloc(outconf); break; case OUTT_LOCALE: - curp->outdata = locale_alloc(curp->outopts); + outst->outdata = locale_alloc(outconf); break; case OUTT_ASCII: - curp->outdata = ascii_alloc(curp->outopts); + outst->outdata = ascii_alloc(outconf); break; case OUTT_PDF: - curp->outdata = pdf_alloc(curp->outopts); + outst->outdata = pdf_alloc(outconf); break; case OUTT_PS: - curp->outdata = ps_alloc(curp->outopts); + outst->outdata = ps_alloc(outconf); break; default: break; @@ -812,34 +1035,34 @@ outdata_alloc(struct curparse *curp) } static void -passthrough(const char *file, int fd, int synopsis_only) +passthrough(int fd, int synopsis_only) { const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; const char synr[] = "SYNOPSIS"; FILE *stream; - const char *syscall; char *line, *cp; size_t linesz; ssize_t len, written; - int print; + int lno, print; + stream = NULL; line = NULL; linesz = 0; if (fflush(stdout) == EOF) { - syscall = "fflush"; - goto fail; + mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno)); + goto done; } - if ((stream = fdopen(fd, "r")) == NULL) { close(fd); - syscall = "fdopen"; - goto fail; + mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno)); + goto done; } - print = 0; + lno = print = 0; while ((len = getline(&line, &linesz, stream)) != -1) { + lno++; cp = line; if (synopsis_only) { if (print) { @@ -857,186 +1080,161 @@ passthrough(const char *file, int fd, int synopsis_onl } } for (; len > 0; len -= written) { - if ((written = write(STDOUT_FILENO, cp, len)) != -1) - continue; - fclose(stream); - syscall = "write"; - goto fail; + if ((written = write(STDOUT_FILENO, cp, len)) == -1) { + mandoc_msg(MANDOCERR_WRITE, 0, 0, + "%s", strerror(errno)); + goto done; + } } } + if (ferror(stream)) + mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno)); - 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; + if (stream != NULL) + fclose(stream); } static int -koptions(int *options, char *arg) +woptions(char *arg, enum mandoc_os *os_e, int *wstop) { - - 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")) - /* nothing to do */; - else if (0 == strcmp(arg, "an")) - *options |= MPARSE_MAN; - else { - warnx("-m %s: Bad argument", arg); - return 0; - } - - return 1; -} - -static int -toptions(struct curparse *curp, char *arg) -{ - - if (0 == strcmp(arg, "ascii")) - curp->outtype = OUTT_ASCII; - else if (0 == strcmp(arg, "lint")) { - curp->outtype = OUTT_LINT; - curp->wlevel = MANDOCLEVEL_WARNING; - } 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")) - curp->outtype = OUTT_HTML; - 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, "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 { - warnx("-T %s: Bad argument", arg); - return 0; - } - - return 1; -} - -static int -woptions(struct curparse *curp, char *arg) -{ char *v, *o; - const char *toks[7]; + const char *toks[11]; toks[0] = "stop"; toks[1] = "all"; - toks[2] = "warning"; - toks[3] = "error"; - toks[4] = "unsupp"; - toks[5] = "fatal"; - toks[6] = NULL; + 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, (char * const *)toks, &v)) { case 0: - curp->wstop = 1; + *wstop = 1; break; case 1: case 2: - curp->wlevel = MANDOCLEVEL_WARNING; + mandoc_msg_setmin(MANDOCERR_BASE); break; case 3: - curp->wlevel = MANDOCLEVEL_ERROR; + mandoc_msg_setmin(MANDOCERR_STYLE); break; case 4: - curp->wlevel = MANDOCLEVEL_UNSUPP; + mandoc_msg_setmin(MANDOCERR_WARNING); break; case 5: - curp->wlevel = MANDOCLEVEL_BADARG; + mandoc_msg_setmin(MANDOCERR_ERROR); break; + case 6: + mandoc_msg_setmin(MANDOCERR_UNSUPP); + break; + case 7: + mandoc_msg_setmin(MANDOCERR_BADARG); + break; + case 8: + mandoc_msg_setmin(MANDOCERR_BASE); + *os_e = MANDOC_OS_OPENBSD; + break; + case 9: + mandoc_msg_setmin(MANDOCERR_BASE); + *os_e = MANDOC_OS_NETBSD; + break; default: - warnx("-W %s: Bad argument", o); - return 0; + mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o); + return -1; } } - - return 1; + return 0; } +/* + * Wait until moved to the foreground, + * then fork the pager and wait for the user to close it. + */ static void -mmsg(enum mandocerr t, enum mandoclevel lvl, - const char *file, int line, int col, const char *msg) +run_pager(struct outstate *outst, char *tag_target) { - const char *mparse_msg; + int signum, status; + pid_t man_pgid, tc_pgid; + pid_t pager_pid, wait_pid; - fprintf(stderr, "%s: %s:", getprogname(), - file == NULL ? "" : file); + man_pgid = getpgid(0); + outst->tag_files->tcpgid = + man_pgid == getpid() ? getpgid(getppid()) : man_pgid; + pager_pid = 0; + signum = SIGSTOP; - if (line) - fprintf(stderr, "%d:%d:", line, col + 1); + for (;;) { + /* Stop here until moved to the foreground. */ - fprintf(stderr, " %s", mparse_strlevel(lvl)); + tc_pgid = tcgetpgrp(STDOUT_FILENO); + if (tc_pgid != man_pgid) { + if (tc_pgid == pager_pid) { + (void)tcsetpgrp(STDOUT_FILENO, man_pgid); + if (signum == SIGTTIN) + continue; + } else + outst->tag_files->tcpgid = tc_pgid; + kill(0, signum); + continue; + } - if (NULL != (mparse_msg = mparse_strerror(t))) - fprintf(stderr, ": %s", mparse_msg); + /* Once in the foreground, activate the pager. */ - if (msg) - fprintf(stderr, ": %s", msg); + if (pager_pid) { + (void)tcsetpgrp(STDOUT_FILENO, pager_pid); + kill(pager_pid, SIGCONT); + } else + pager_pid = spawn_pager(outst, tag_target); - fputc('\n', stderr); + /* Wait for the pager to stop or exit. */ + + while ((wait_pid = waitpid(pager_pid, &status, + WUNTRACED)) == -1 && errno == EINTR) + continue; + + if (wait_pid == -1) { + mandoc_msg(MANDOCERR_WAIT, 0, 0, + "%s", strerror(errno)); + break; + } + if (!WIFSTOPPED(status)) + break; + + signum = WSTOPSIG(status); + } } static pid_t -spawn_pager(struct tag_files *tag_files) +spawn_pager(struct outstate *outst, char *tag_target) { const struct timespec timeout = { 0, 100000000 }; /* 0.1s */ #define MAX_PAGER_ARGS 16 char *argv[MAX_PAGER_ARGS]; const char *pager; char *cp; +#if HAVE_LESS_T size_t cmdlen; - int argc; +#endif + int argc, use_ofn; pid_t pager_pid; + assert(outst->tag_files->ofd == -1); + assert(outst->tag_files->tfs == NULL); + pager = getenv("MANPAGER"); if (pager == NULL || *pager == '\0') pager = getenv("PAGER"); if (pager == NULL || *pager == '\0') - pager = "more -s"; + pager = BINM_PAGER; cp = mandoc_strdup(pager); /* @@ -1045,7 +1243,7 @@ spawn_pager(struct tag_files *tag_files) */ argc = 0; - while (argc + 4 < MAX_PAGER_ARGS) { + while (argc + 5 < MAX_PAGER_ARGS) { argv[argc++] = cp; cp = strchr(cp, ' '); if (cp == NULL) @@ -1059,44 +1257,61 @@ spawn_pager(struct tag_files *tag_files) /* For less(1), use the tag file. */ - if ((cmdlen = strlen(argv[0])) >= 4) { + use_ofn = 1; +#if HAVE_LESS_T + if (*outst->tag_files->tfn != '\0' && + (cmdlen = strlen(argv[0])) >= 4) { cp = argv[0] + cmdlen - 4; if (strcmp(cp, "less") == 0) { argv[argc++] = mandoc_strdup("-T"); - argv[argc++] = tag_files->tfn; + argv[argc++] = outst->tag_files->tfn; + if (tag_target != NULL) { + argv[argc++] = mandoc_strdup("-t"); + argv[argc++] = tag_target; + use_ofn = 0; + } } } - argv[argc++] = tag_files->ofn; +#endif + if (use_ofn) { + if (outst->outtype == OUTT_HTML && tag_target != NULL) + mandoc_asprintf(&argv[argc], "file://%s#%s", + outst->tag_files->ofn, tag_target); + else + argv[argc] = outst->tag_files->ofn; + argc++; + } argv[argc] = NULL; switch (pager_pid = fork()) { case -1: - err((int)MANDOCLEVEL_SYSERR, "fork"); + mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno)); + exit(mandoc_msg_getrc()); case 0: break; default: (void)setpgid(pager_pid, 0); - (void)tcsetpgrp(tag_files->ofd, pager_pid); + (void)tcsetpgrp(STDOUT_FILENO, pager_pid); #if HAVE_PLEDGE - if (pledge("stdio rpath tmppath tty proc", NULL) == -1) - err((int)MANDOCLEVEL_SYSERR, "pledge"); + if (pledge("stdio rpath tmppath tty proc", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + exit(mandoc_msg_getrc()); + } #endif - tag_files->pager_pid = pager_pid; + outst->tag_files->pager_pid = pager_pid; return pager_pid; } - /* The child process becomes the pager. */ + /* + * The child process becomes the pager. + * Do not start it before controlling the terminal. + */ - 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]); + mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno)); + _exit(mandoc_msg_getrc()); }