=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.227 retrieving revision 1.336 diff -u -p -r1.227 -r1.336 --- mandoc/main.c 2015/03/17 13:35:52 1.227 +++ mandoc/main.c 2019/07/27 13:40:57 1.336 @@ -1,16 +1,16 @@ -/* $Id: main.c,v 1.227 2015/03/17 13:35:52 schwarze Exp $ */ +/* $Id: main.c,v 1.336 2019/07/27 13:40:57 schwarze Exp $ */ /* * Copyright (c) 2008-2012 Kristaps Dzonsons - * Copyright (c) 2010-2012, 2014, 2015 Ingo Schwarze + * Copyright (c) 2010-2012, 2014-2019 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 @@ -19,48 +19,51 @@ #include "config.h" #include +#include #include /* MACHINE */ +#include #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 -#include "mandoc.h" #include "mandoc_aux.h" -#include "main.h" +#include "mandoc.h" +#include "mandoc_xr.h" +#include "roff.h" #include "mdoc.h" #include "man.h" -#include "manpath.h" +#include "mandoc_parse.h" +#include "tag.h" +#include "main.h" +#include "manconf.h" #include "mansearch.h" -#if !defined(__GNUC__) || (__GNUC__ < 2) -# if !defined(lint) -# define __attribute__(x) -# endif -#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ - enum outmode { OUTMODE_DEF = 0, OUTMODE_FLN, OUTMODE_LST, OUTMODE_ALL, - OUTMODE_INT, OUTMODE_ONE }; -typedef void (*out_mdoc)(void *, const struct mdoc *); -typedef void (*out_man)(void *, const struct man *); -typedef void (*out_free)(void *); - enum outt { OUTT_ASCII = 0, /* -Tascii */ OUTT_LOCALE, /* -Tlocale */ @@ -68,95 +71,109 @@ 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; - struct mchars *mchars; /* character table */ - 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 */ enum outt outtype; /* which output to use */ - out_mdoc outmdoc; /* mdoc output ptr */ - out_man outman; /* man output ptr */ - out_free outfree; /* free output ptr */ - void *outdata; /* data for output */ - char outopts[BUFSIZ]; /* buf of output opts */ }; + +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 *, +static int 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 *); -static void passthrough(const char *, int, int); -static pid_t spawn_pager(void); -static int toptions(struct curparse *, char *); -static void usage(enum argmode) __attribute__((noreturn)); -static int woptions(struct curparse *, 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 run_pager(struct tag_files *); +static pid_t spawn_pager(struct tag_files *); +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 const char *progname; -static enum mandoclevel rc; int main(int argc, char *argv[]) { - struct curparse curp; - struct mansearch search; - struct manpaths paths; - 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, *resp; /* Search results. */ + 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, *thisarg; + 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; - size_t isec, i, sz; - int prio, best_prio, synopsis_only; - char sec; - enum mandoclevel rctmp; - enum outmode outmode; - int fd; - int show_usage; - int options; + size_t sz; /* Number of elements in res[]. */ + size_t i, ssz; + int options; /* Parser options. */ + int show_usage; /* Invalid argument: give up. */ + int prio, best_prio; + int fd, startdir; int c; - pid_t pager_pid; /* 0: don't use; 1: not yet spawned. */ + enum mandoc_os os_e; /* Check base system conventions. */ + enum outmode outmode; /* According to command line. */ +#if HAVE_PROGNAME + progname = getprogname(); +#else if (argc < 1) - progname = "mandoc"; + progname = mandoc_strdup("mandoc"); else if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; else ++progname; + setprogname(progname); +#endif -#if HAVE_SQLITE3 - if (strcmp(progname, BINM_MAKEWHATIS) == 0) - return(mandocdb(argc, argv)); + 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", 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"); +#endif /* Search options. */ - memset(&paths, 0, sizeof(struct manpaths)); - conf_file = defpaths = NULL; - auxpaths = NULL; + memset(&conf, 0, sizeof(conf)); + 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; @@ -169,21 +186,28 @@ 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; options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1; - defos = NULL; + os_e = MANDOC_OS_OTHER; + os_s = NULL; - pager_pid = 1; + /* Formatter options. */ + + memset(&outst, 0, sizeof(outst)); + outst.tag_files = NULL; + outst.outtype = OUTT_LOCALE; + outst.use_pager = 1; + show_usage = 0; - synopsis_only = 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; @@ -192,38 +216,40 @@ main(int argc, char *argv[]) conf_file = optarg; break; case 'c': - pager_pid = 0; + outst.use_pager = 0; break; case 'f': search.argmode = ARG_WORD; break; case 'h': - (void)strlcat(curp.outopts, "synopsis,", BUFSIZ); - synopsis_only = 1; - pager_pid = 0; + conf.output.synopsisonly = 1; + outst.use_pager = 0; outmode = OUTMODE_ALL; break; case 'I': - if (strncmp(optarg, "os=", 3)) { - fprintf(stderr, - "%s: -I %s: Bad argument\n", - progname, 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) { - fprintf(stderr, - "%s: -I %s: Duplicate argument\n", - progname, 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; @@ -239,9 +265,7 @@ main(int argc, char *argv[]) auxpaths = optarg; break; case 'O': - search.outkey = optarg; - (void)strlcat(curp.outopts, optarg, BUFSIZ); - (void)strlcat(curp.outopts, ",", BUFSIZ); + oarg = optarg; break; case 'S': search.arch = optarg; @@ -250,12 +274,37 @@ 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; @@ -275,7 +324,7 @@ main(int argc, char *argv[]) switch (search.argmode) { case ARG_FILE: outmode = OUTMODE_ALL; - pager_pid = 0; + outst.use_pager = 0; break; case ARG_NAME: outmode = OUTMODE_ONE; @@ -286,6 +335,46 @@ main(int argc, char *argv[]) } } + 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)) + 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 (outst.use_pager == 0) { + if (pledge("stdio rpath", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + return mandoc_msg_getrc(); + } + } +#endif + /* Parse arguments. */ if (argc > 0) { @@ -308,7 +397,7 @@ 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++; @@ -322,39 +411,63 @@ main(int argc, char *argv[]) #endif } - 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). + */ + 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; + } + /* 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. */ - manpath_parse(&paths, conf_file, defpaths, auxpaths); -#if HAVE_SQLITE3 - mansearch_setup(1); - if( ! mansearch(&search, &paths, argc, argv, &res, &sz)) + manconf_parse(&conf, conf_file, defpaths, auxpaths); + 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 && search.argmode == ARG_NAME) - fs_search(&search, &paths, argc, argv, &res, &sz); + (void)fs_search(&search, &conf.manpath, + argc, argv, &res, &sz); + if (search.argmode == ARG_NAME) { + for (c = 0; c < argc; c++) { + if (strchr(argv[c], '/') == NULL) + continue; + if (access(argv[c], R_OK) == -1) { + mandoc_msg_setinfilename(argv[c]); + mandoc_msg(MANDOCERR_BADARG_BAD, + 0, 0, "%s", strerror(errno)); + mandoc_msg_setinfilename(NULL); + continue; + } + res = mandoc_reallocarray(res, + sz + 1, sizeof(*res)); + res[sz].file = mandoc_strdup(argv[c]); + res[sz].names = NULL; + res[sz].output = NULL; + res[sz].bits = 0; + res[sz].ipath = SIZE_MAX; + res[sz].sec = 10; + res[sz].form = FORM_SRC; + sz++; + } + } + if (sz == 0) { - rc = MANDOCLEVEL_BADARG; + if (search.argmode != ARG_NAME) + warnx("nothing appropriate"); + mandoc_msg_setrc(MANDOCLEVEL_BADARG); goto out; } @@ -366,7 +479,7 @@ main(int argc, char *argv[]) if (outmode == OUTMODE_ONE) { argc = 1; - best_prio = 10; + best_prio = 40; } else if (outmode == OUTMODE_ALL) argc = (int)sz; @@ -382,11 +495,24 @@ main(int argc, char *argv[]) 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']; + sec = res[i].file; + sec += strcspn(sec, "123456789"); + if (sec[0] == '\0') + continue; /* No section at all. */ + prio = sec_prios[sec[0] - '1']; + if (search.sec != NULL) { + ssz = strlen(search.sec); + if (strncmp(sec, search.sec, ssz) == 0) + sec += ssz; + } else + sec++; /* Prefer without suffix. */ + if (*sec != '/') + prio += 10; /* Wrong dir name. */ + if (search.sec != NULL && + (strlen(sec) <= ssz + 3 || + strcmp(sec + strlen(sec) - ssz, + search.sec) != 0)) + prio += 20; /* Wrong file ext. */ if (prio >= best_prio) continue; best_prio = prio; @@ -406,53 +532,104 @@ main(int argc, char *argv[]) /* mandoc(1) */ - if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths)) - return((int)MANDOCLEVEL_BADARG); +#if HAVE_PLEDGE + if (outst.use_pager) { + if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + return mandoc_msg_getrc(); + } + } else { + if (pledge("stdio rpath", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + return mandoc_msg_getrc(); + } + } +#endif - curp.mchars = mchars_alloc(); - curp.mp = mparse_alloc(options, curp.wlevel, mmsg, - curp.mchars, defos); + if (search.argmode == ARG_FILE && auxpaths != NULL) { + if (strcmp(auxpaths, "doc") == 0) + options |= MPARSE_MDOC; + else if (strcmp(auxpaths, "an") == 0) + options |= MPARSE_MAN; + } - /* - * Conditionally start up the lookaside buffer before parsing. - */ - if (OUTT_MAN == curp.outtype) - mparse_keep(curp.mp); + mchars_alloc(); + mp = mparse_alloc(options, os_e, os_s); if (argc < 1) { - if (pager_pid == 1 && isatty(STDOUT_FILENO)) - pager_pid = spawn_pager(); - parse(&curp, STDIN_FILENO, ""); + if (outst.use_pager) + outst.tag_files = tag_init(conf.output.tag); + thisarg = ""; + mandoc_msg_setinfilename(thisarg); + parse(mp, STDIN_FILENO, thisarg, &outst, &conf.output); + mandoc_msg_setinfilename(NULL); } + /* + * Remember the original working directory, if possible. + * This will be needed if some names on the command line + * are page names and some are relative file names. + * Do not error out if the current directory is not + * readable: Maybe it won't be needed after all. + */ + startdir = open(".", O_RDONLY | O_DIRECTORY); + while (argc > 0) { - rctmp = mparse_open(curp.mp, &fd, - resp != NULL ? resp->file : *argv); - if (rc < rctmp) - rc = rctmp; + /* + * 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 != NULL) { + if (resp->ipath != SIZE_MAX) + (void)chdir(conf.manpath.paths[resp->ipath]); + else if (startdir != -1) + (void)fchdir(startdir); + thisarg = resp->file; + } else + thisarg = *argv; + + mandoc_msg_setinfilename(thisarg); + fd = mparse_open(mp, thisarg); if (fd != -1) { - if (pager_pid == 1 && isatty(STDOUT_FILENO)) - pager_pid = spawn_pager(); + if (outst.use_pager) { + outst.use_pager = 0; + outst.tag_files = tag_init(conf.output.tag); + } - if (resp == NULL) - parse(&curp, fd, *argv); - else if (resp->form & FORM_SRC) { - /* For .so only; ignore failure. */ - chdir(paths.paths[resp->ipath]); - parse(&curp, fd, resp->file); - } else - passthrough(resp->file, fd, synopsis_only); + if (resp == NULL || resp->form == FORM_SRC) + parse(mp, fd, thisarg, &outst, &conf.output); + else + passthrough(fd, conf.output.synopsisonly); - rctmp = mparse_wait(curp.mp); - if (rc < rctmp) - rc = rctmp; + if (ferror(stdout)) { + if (outst.tag_files != NULL) { + mandoc_msg(MANDOCERR_WRITE, 0, 0, + "%s: %s", outst.tag_files->ofn, + strerror(errno)); + tag_unlink(); + outst.tag_files = NULL; + } else + mandoc_msg(MANDOCERR_WRITE, 0, 0, + "%s", strerror(errno)); + break; + } - if (argc > 1 && curp.outtype <= OUTT_UTF8) - ascii_sepline(curp.outdata); - } + if (argc > 1 && outst.outtype <= OUTT_UTF8) { + if (outst.outdata == NULL) + outdata_alloc(&outst, &conf.output); + terminal_sepline(outst.outdata); + } + } else + mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD : + MANDOCERR_OPEN, 0, 0, "%s", strerror(errno)); - if (MANDOCLEVEL_OK != rc && curp.wstop) + mandoc_msg_setinfilename(NULL); + + if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) break; if (resp != NULL) @@ -460,63 +637,74 @@ main(int argc, char *argv[]) else argv++; if (--argc) - mparse_reset(curp.mp); + mparse_reset(mp); } + if (startdir != -1) { + (void)fchdir(startdir); + close(startdir); + } - if (curp.outfree) - (*curp.outfree)(curp.outdata); - mparse_free(curp.mp); - mchars_free(curp.mchars); + if (outst.outdata != NULL) { + switch (outst.outtype) { + case OUTT_HTML: + html_free(outst.outdata); + break; + case OUTT_UTF8: + case OUTT_LOCALE: + case OUTT_ASCII: + ascii_free(outst.outdata); + break; + case OUTT_PDF: + case OUTT_PS: + pspdf_free(outst.outdata); + break; + default: + break; + } + } + mandoc_xr_free(); + mparse_free(mp); + mchars_free(); out: if (search.argmode != ARG_FILE) { - manpath_free(&paths); -#if HAVE_SQLITE3 + manconf_free(&conf); 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) { + if (outst.tag_files != NULL) { fclose(stdout); - waitpid(pager_pid, NULL, 0); - } + tag_write(); + run_pager(outst.tag_files); + tag_unlink(); + } else if (outst.outtype != OUTT_LINT && + (search.argmode == ARG_FILE || sz > 0)) + mandoc_msg_summary(); - return((int)rc); + return (int)mandoc_msg_getrc(); } static void usage(enum argmode argmode) { - switch (argmode) { case ARG_FILE: - fputs("usage: mandoc [-acfhkl] [-Ios=name] " - "[-Kencoding] [-mformat] [-Ooption]\n" - "\t [-Toutput] [-Wlevel] [file ...]\n", stderr); + 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; @@ -529,21 +717,23 @@ fs_lookup(const struct manpaths *paths, size_t ipath, const char *sec, const char *arch, const char *name, struct manpage **res, size_t *ressz) { + struct stat sb; glob_t globinfo; struct manpage *page; char *file; - int form, globres; + int globres; + enum form form; 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; } @@ -552,448 +742,443 @@ 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.*", + 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) - fprintf(stderr, "%s: %s: glob: %s\n", - progname, file, strerror(errno)); + 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; -found: -#if HAVE_SQLITE3 - fprintf(stderr, "%s: outdated mandoc.db lacks %s(%s) entry,\n" - " consider running # makewhatis %s\n", - progname, name, sec, paths->paths[ipath]); -#endif + mandoc_asprintf(&file, "%s.%s", name, sec); + globres = stat(file, &sb); + free(file); + return globres; - *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage)); +found: + warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s", + name, sec, BINM_MAKEWHATIS, paths->paths[ipath]); + if (res == NULL) { + free(file); + return 0; + } + *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res)); page = *res + (*ressz - 1); page->file = file; page->names = NULL; page->output = NULL; - page->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 *const sections[] = - {"1", "8", "6", "2", "3", "3p", "5", "7", "4", "9"}; + {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"}; const size_t nsec = sizeof(sections)/sizeof(sections[0]); size_t ipath, isec, lastsz; assert(cfg->argmode == ARG_NAME); - *res = NULL; + 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->arch, *argv, res, ressz) != -1 && cfg->firstmatch) - return; + return 0; } else for (isec = 0; isec < nsec; isec++) if (fs_lookup(paths, ipath, sections[isec], - cfg->arch, *argv, res, ressz) && + cfg->arch, *argv, res, ressz) != -1 && cfg->firstmatch) - return; + return 0; } - if (*ressz == lastsz) - fprintf(stderr, - "%s: No entry for %s in the manual.\n", - progname, *argv); + if (res != NULL && *ressz == lastsz && + strchr(*argv, '/') == NULL) { + if (cfg->arch != NULL && + arch_valid(cfg->arch, OSENUM) == 0) + warnx("Unknown architecture \"%s\".", + cfg->arch); + else if (cfg->sec == NULL) + warnx("No entry for %s in the manual.", + *argv); + else + warnx("No entry for %s in section %s " + "of the manual.", *argv, cfg->sec); + } lastsz = *ressz; argv++; argc--; } + return -1; } static void -parse(struct curparse *curp, int fd, const char *file) +parse(struct mparse *mp, int fd, const char *file, + struct outstate *outst, struct manoutput *outconf) { - enum mandoclevel rctmp; - struct mdoc *mdoc; - struct man *man; + struct roff_meta *meta; /* Begin by parsing the file itself. */ assert(file); - assert(fd >= -1); + assert(fd >= 0); - rctmp = mparse_readfd(curp->mp, fd, file); - if (rc < rctmp) - rc = rctmp; + mparse_readfd(mp, fd, file); + if (fd != STDIN_FILENO) + close(fd); /* * 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 unset, allocate output dev now (if applicable). */ + if (outst->outdata == NULL) + outdata_alloc(outst, outconf); + else if (outst->outtype == OUTT_HTML) + html_reset(outst); - if ( ! (curp->outman && curp->outmdoc)) { - switch (curp->outtype) { + mandoc_xr_reset(); + meta = mparse_result(mp); + + /* Execute the out device, if it exists. */ + + if (meta->macroset == MACROSET_MDOC) { + switch (outst->outtype) { case OUTT_HTML: - curp->outdata = html_alloc(curp->mchars, - curp->outopts); - curp->outfree = html_free; + html_mdoc(outst->outdata, meta); break; - case OUTT_UTF8: - curp->outdata = utf8_alloc(curp->mchars, - curp->outopts); - curp->outfree = ascii_free; + case OUTT_TREE: + tree_mdoc(outst->outdata, meta); break; - case OUTT_LOCALE: - curp->outdata = locale_alloc(curp->mchars, - curp->outopts); - curp->outfree = ascii_free; + case OUTT_MAN: + man_mdoc(outst->outdata, meta); break; - case OUTT_ASCII: - curp->outdata = ascii_alloc(curp->mchars, - curp->outopts); - curp->outfree = ascii_free; - break; case OUTT_PDF: - curp->outdata = pdf_alloc(curp->mchars, - curp->outopts); - curp->outfree = pspdf_free; - break; + case OUTT_ASCII: + case OUTT_UTF8: + case OUTT_LOCALE: case OUTT_PS: - curp->outdata = ps_alloc(curp->mchars, - curp->outopts); - curp->outfree = pspdf_free; + terminal_mdoc(outst->outdata, meta); break; + case OUTT_MARKDOWN: + markdown_mdoc(outst->outdata, meta); + break; default: break; } - - switch (curp->outtype) { + } + if (meta->macroset == MACROSET_MAN) { + switch (outst->outtype) { case OUTT_HTML: - curp->outman = html_man; - curp->outmdoc = html_mdoc; + html_man(outst->outdata, meta); break; case OUTT_TREE: - curp->outman = tree_man; - curp->outmdoc = tree_mdoc; + tree_man(outst->outdata, meta); break; case OUTT_MAN: - curp->outmdoc = man_mdoc; - curp->outman = man_man; + mparse_copy(mp); break; case OUTT_PDF: - /* FALLTHROUGH */ case OUTT_ASCII: - /* FALLTHROUGH */ case OUTT_UTF8: - /* FALLTHROUGH */ case OUTT_LOCALE: - /* FALLTHROUGH */ case OUTT_PS: - curp->outman = terminal_man; - curp->outmdoc = terminal_mdoc; + terminal_man(outst->outdata, meta); break; default: break; } } + if (mandoc_msg_getmin() < MANDOCERR_STYLE) + check_xr(); +} - mparse_result(curp->mp, &mdoc, &man, NULL); +static void +check_xr(void) +{ + static struct manpaths paths; + struct mansearch search; + struct mandoc_xr *xr; + size_t sz; - /* Execute the out device, if it exists. */ + if (paths.sz == 0) + manpath_base(&paths); - if (man && curp->outman) - (*curp->outman)(curp->outdata, man); - if (mdoc && curp->outmdoc) - (*curp->outmdoc)(curp->outdata, mdoc); + 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, 1, &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 -passthrough(const char *file, int fd, int synopsis_only) +outdata_alloc(struct outstate *outst, struct manoutput *outconf) { + switch (outst->outtype) { + case OUTT_HTML: + outst->outdata = html_alloc(outconf); + break; + case OUTT_UTF8: + outst->outdata = utf8_alloc(outconf); + break; + case OUTT_LOCALE: + outst->outdata = locale_alloc(outconf); + break; + case OUTT_ASCII: + outst->outdata = ascii_alloc(outconf); + break; + case OUTT_PDF: + outst->outdata = pdf_alloc(outconf); + break; + case OUTT_PS: + outst->outdata = ps_alloc(outconf); + break; + default: + break; + } +} + +static void +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; - size_t len, off; - ssize_t nw; - int print; + char *line, *cp; + size_t linesz; + ssize_t len, written; + int lno, print; - fflush(stdout); + stream = NULL; + line = NULL; + linesz = 0; + if (fflush(stdout) == EOF) { + 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; - while ((line = fgetln(stream, &len)) != NULL) { + lno = print = 0; + while ((len = getline(&line, &linesz, stream)) != -1) { + lno++; + cp = line; if (synopsis_only) { if (print) { - if ( ! isspace((unsigned char)*line)) + if ( ! isspace((unsigned char)*cp)) goto done; - while (len && - isspace((unsigned char)*line)) { - line++; + while (isspace((unsigned char)*cp)) { + cp++; len--; } } else { - if ((len == sizeof(synb) && - ! strncmp(line, synb, len - 1)) || - (len == sizeof(synr) && - ! strncmp(line, synr, len - 1))) + if (strcmp(cp, synb) == 0 || + strcmp(cp, synr) == 0) 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; + for (; len > 0; len -= written) { + if ((written = write(STDOUT_FILENO, cp, len)) == -1) { + mandoc_msg(MANDOCERR_WRITE, 0, 0, + "%s", strerror(errno)); + goto done; } + } } + if (ferror(stream)) + mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno)); - 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; + free(line); + 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 { - fprintf(stderr, "%s: -K %s: Bad argument\n", - progname, 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 { - fprintf(stderr, "%s: -m %s: Bad argument\n", - progname, 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 { - fprintf(stderr, "%s: -T %s: Bad argument\n", - progname, 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, UNCONST(toks), &v)) { + switch (getsubopt(&arg, (char * const *)toks, &v)) { case 0: - curp->wstop = 1; + *wstop = 1; break; case 1: - /* FALLTHROUGH */ 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: - fprintf(stderr, "%s: -W %s: Bad argument\n", - progname, 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 tag_files *tag_files) { - const char *mparse_msg; + int signum, status; + pid_t man_pgid, tc_pgid; + pid_t pager_pid, wait_pid; - fprintf(stderr, "%s: %s:", progname, file); + man_pgid = getpgid(0); + 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(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; + } - 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(tag_files->ofd, pager_pid); + kill(pager_pid, SIGCONT); + } else + pager_pid = spawn_pager(tag_files); - fputc('\n', stderr); -} + /* Wait for the pager to stop or exit. */ -static void -handle_sigpipe(int signum) -{ + while ((wait_pid = waitpid(pager_pid, &status, + WUNTRACED)) == -1 && errno == EINTR) + continue; - exit((int)rc); + 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(void) +spawn_pager(struct tag_files *tag_files) { + const struct timespec timeout = { 0, 100000000 }; /* 0.1s */ #define MAX_PAGER_ARGS 16 char *argv[MAX_PAGER_ARGS]; const char *pager; char *cp; - int fildes[2]; - int argc; +#if HAVE_LESS_T + size_t cmdlen; +#endif + int argc, use_ofn; 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 = "/usr/bin/more -s"; + pager = "more -s"; cp = mandoc_strdup(pager); /* @@ -1002,7 +1187,7 @@ spawn_pager(void) */ argc = 0; - while (argc + 1 < MAX_PAGER_ARGS) { + while (argc + 5 < MAX_PAGER_ARGS) { argv[argc++] = cp; cp = strchr(cp, ' '); if (cp == NULL) @@ -1013,12 +1198,63 @@ spawn_pager(void) if (*cp == '\0') break; } + + /* For less(1), use the tag file. */ + + use_ofn = 1; +#if HAVE_LESS_T + if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) { + cp = argv[0] + cmdlen - 4; + if (strcmp(cp, "less") == 0) { + argv[argc++] = mandoc_strdup("-T"); + argv[argc++] = tag_files->tfn; + if (tag_files->tagname != NULL) { + argv[argc++] = mandoc_strdup("-t"); + argv[argc++] = tag_files->tagname; + use_ofn = 0; + } + } + } +#endif + if (use_ofn) + argv[argc++] = tag_files->ofn; argv[argc] = NULL; - /* Hand over to the pager. */ + switch (pager_pid = fork()) { + case -1: + mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno)); + exit(mandoc_msg_getrc()); + case 0: + break; + default: + (void)setpgid(pager_pid, 0); + (void)tcsetpgrp(tag_files->ofd, pager_pid); +#if HAVE_PLEDGE + if (pledge("stdio rpath tmppath tty proc", NULL) == -1) { + mandoc_msg(MANDOCERR_PLEDGE, 0, 0, + "%s", strerror(errno)); + exit(mandoc_msg_getrc()); + } +#endif + tag_files->pager_pid = pager_pid; + return pager_pid; + } + /* The child process becomes the pager. */ + + if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) { + mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno)); + _exit(mandoc_msg_getrc()); + } + close(tag_files->ofd); + assert(tag_files->tfd == -1); + + /* Do not start the pager before controlling the terminal. */ + + while (tcgetpgrp(STDOUT_FILENO) != getpid()) + nanosleep(&timeout, NULL); + execvp(argv[0], argv); - fprintf(stderr, "%s: exec: %s\n", - progname, strerror(errno)); - exit((int)MANDOCLEVEL_SYSERR); + mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno)); + _exit(mandoc_msg_getrc()); }