=================================================================== RCS file: /cvs/mandoc/main.c,v retrieving revision 1.222 retrieving revision 1.242 diff -u -p -r1.222 -r1.242 --- mandoc/main.c 2015/02/27 16:02:10 1.222 +++ mandoc/main.c 2015/07/19 06:05:16 1.242 @@ -1,4 +1,4 @@ -/* $Id: main.c,v 1.222 2015/02/27 16:02:10 schwarze Exp $ */ +/* $Id: main.c,v 1.242 2015/07/19 06:05:16 schwarze Exp $ */ /* * Copyright (c) 2008-2012 Kristaps Dzonsons * Copyright (c) 2010-2012, 2014, 2015 Ingo Schwarze @@ -8,9 +8,9 @@ * 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 @@ -20,24 +20,28 @@ #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 "manpath.h" +#include "tag.h" +#include "main.h" +#include "manconf.h" #include "mansearch.h" #if !defined(__GNUC__) || (__GNUC__ < 2) @@ -55,8 +59,8 @@ enum outmode { OUTMODE_ONE }; -typedef void (*out_mdoc)(void *, const struct mdoc *); -typedef void (*out_man)(void *, const struct man *); +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 { @@ -81,7 +85,7 @@ struct curparse { 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 *, @@ -91,6 +95,7 @@ static int fs_lookup(const struct manpaths *, 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**); @@ -98,10 +103,9 @@ int mandocdb(int, char**); static int moptions(int *, char *); static void mmsg(enum mandocerr, enum mandoclevel, const char *, int, int, const char *); -static void parse(struct curparse *, int, - const char *, enum mandoclevel *); -static enum mandoclevel passthrough(const char *, int, int); -static void spawn_pager(void); +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 *); @@ -110,29 +114,30 @@ static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2 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 manconf conf; struct curparse curp; struct mansearch search; - struct manpaths paths; char *auxpaths; char *defos; unsigned char *uc; struct manpage *res, *resp; char *conf_file, *defpaths; size_t isec, i, sz; - int prio, best_prio, synopsis_only; + int prio, best_prio; char sec; - enum mandoclevel rc, rctmp; + enum mandoclevel rctmp; enum outmode outmode; int fd; int show_usage; - int use_pager; int options; int c; + pid_t pager_pid; /* 0: don't use; 1: not yet spawned. */ if (argc < 1) progname = "mandoc"; @@ -148,7 +153,7 @@ main(int argc, char *argv[]) /* Search options. */ - memset(&paths, 0, sizeof(struct manpaths)); + memset(&conf, 0, sizeof(conf)); conf_file = defpaths = NULL; auxpaths = NULL; @@ -171,12 +176,12 @@ main(int argc, char *argv[]) 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; - use_pager = 1; + pager_pid = 1; show_usage = 0; - synopsis_only = 0; outmode = OUTMODE_DEF; while (-1 != (c = getopt(argc, argv, @@ -189,15 +194,14 @@ main(int argc, char *argv[]) conf_file = optarg; break; case 'c': - use_pager = 0; + pager_pid = 0; break; case 'f': search.argmode = ARG_WORD; break; case 'h': - (void)strlcat(curp.outopts, "synopsis,", BUFSIZ); - synopsis_only = 1; - use_pager = 0; + conf.output.synopsisonly = 1; + pager_pid = 0; outmode = OUTMODE_ALL; break; case 'I': @@ -237,8 +241,9 @@ main(int argc, char *argv[]) break; case 'O': search.outkey = optarg; - (void)strlcat(curp.outopts, optarg, BUFSIZ); - (void)strlcat(curp.outopts, ",", BUFSIZ); + while (optarg != NULL) + manconf_output(&conf.output, + strsep(&optarg, ",")); break; case 'S': search.arch = optarg; @@ -272,7 +277,7 @@ main(int argc, char *argv[]) switch (search.argmode) { case ARG_FILE: outmode = OUTMODE_ALL; - use_pager = 0; + pager_pid = 0; break; case ARG_NAME: outmode = OUTMODE_ONE; @@ -303,18 +308,20 @@ main(int argc, char *argv[]) argc = 1; } } else if (argc > 1 && - ((uc = argv[0]) != NULL) && + ((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 = uc; + 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; @@ -331,10 +338,11 @@ main(int argc, char *argv[]) /* Access the mandoc database. */ - manpath_parse(&paths, conf_file, defpaths, auxpaths); + manconf_parse(&conf, conf_file, defpaths, auxpaths); #if HAVE_SQLITE3 mansearch_setup(1); - if( ! mansearch(&search, &paths, argc, argv, &res, &sz)) + if ( ! mansearch(&search, &conf.manpath, + argc, argv, &res, &sz)) usage(search.argmode); #else if (search.argmode != ARG_NAME) { @@ -345,8 +353,15 @@ main(int argc, char *argv[]) sz = 0; #endif - if (sz == 0 && search.argmode == ARG_NAME) - fs_search(&search, &paths, argc, argv, &res, &sz); + 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; @@ -404,6 +419,9 @@ main(int argc, char *argv[]) if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths)) return((int)MANDOCLEVEL_BADARG); + if (pager_pid == 1 && isatty(STDOUT_FILENO) == 0) + pager_pid = 0; + curp.mchars = mchars_alloc(); curp.mp = mparse_alloc(options, curp.wlevel, mmsg, curp.mchars, defos); @@ -415,9 +433,9 @@ main(int argc, char *argv[]) mparse_keep(curp.mp); if (argc < 1) { - if (use_pager && isatty(STDOUT_FILENO)) - spawn_pager(); - parse(&curp, STDIN_FILENO, "", &rc); + if (pager_pid == 1) + pager_pid = spawn_pager(); + parse(&curp, STDIN_FILENO, ""); } while (argc > 0) { @@ -427,27 +445,19 @@ main(int argc, char *argv[]) rc = rctmp; if (fd != -1) { - if (use_pager && isatty(STDOUT_FILENO)) - spawn_pager(); - use_pager = 0; + if (pager_pid == 1) + pager_pid = spawn_pager(); if (resp == NULL) - parse(&curp, fd, *argv, &rc); + 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, &rc); - } else { - rctmp = passthrough(resp->file, fd, - synopsis_only); - if (rc < rctmp) - rc = rctmp; - } + 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); } @@ -470,7 +480,7 @@ main(int argc, char *argv[]) out: if (search.argmode != ARG_FILE) { - manpath_free(&paths); + manconf_free(&conf); #if HAVE_SQLITE3 mansearch_free(res, sz); mansearch_setup(0); @@ -479,6 +489,19 @@ out: 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); + tag_write(); + waitpid(pager_pid, NULL, 0); + tag_unlink(); + } + return((int)rc); } @@ -488,9 +511,9 @@ 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 [-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] " @@ -546,7 +569,7 @@ fs_lookup(const struct manpaths *paths, size_t ipath, 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) @@ -561,11 +584,9 @@ fs_lookup(const struct manpaths *paths, size_t ipath, 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]); + 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; @@ -616,27 +637,27 @@ fs_search(const struct mansearch *cfg, const struct ma } 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; /* * 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). */ @@ -706,21 +727,19 @@ parse(struct curparse *curp, int fd, const char *file, } } - 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: - if (*level < rc) - *level = rc; } -static enum mandoclevel +static void passthrough(const char *file, int fd, int synopsis_only) { const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; @@ -778,12 +797,13 @@ passthrough(const char *file, int fd, int synopsis_onl done: fclose(stream); - return(MANDOCLEVEL_OK); + return; fail: fprintf(stderr, "%s: %s: SYSERR: %s: %s", progname, file, syscall, strerror(errno)); - return(MANDOCLEVEL_SYSERR); + if (rc < MANDOCLEVEL_SYSERR) + rc = MANDOCLEVEL_SYSERR; } static int @@ -928,39 +948,89 @@ mmsg(enum mandocerr t, enum mandoclevel lvl, } 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; + size_t cmdlen; int fildes[2]; int argc; + pid_t pager_pid; + pager = getenv("MANPAGER"); + if (pager == NULL || *pager == '\0') + pager = getenv("PAGER"); + if (pager == NULL || *pager == '\0') + pager = "more -s"; + cp = mandoc_strdup(pager); + + /* + * Parse the pager command into words. + * Intentionally do not do anything fancy here. + */ + + argc = 0; + while (argc + 4 < MAX_PAGER_ARGS) { + argv[argc++] = cp; + cp = strchr(cp, ' '); + if (cp == NULL) + break; + *cp++ = '\0'; + while (*cp == ' ') + cp++; + if (*cp == '\0') + break; + } + + /* Read all text right away and use the tag file. */ + + if ((cmdlen = strlen(argv[0])) >= 4) { + cp = argv[0] + cmdlen - 4; + if (strcmp(cp, "less") == 0 || + strcmp(cp, "more") == 0) { + tag_init(); + argv[argc++] = mandoc_strdup("+G1G"); + argv[argc++] = mandoc_strdup("-T"); + argv[argc++] = tag_filename(); + } + } + argv[argc] = NULL; + if (pipe(fildes) == -1) { fprintf(stderr, "%s: pipe: %s\n", progname, strerror(errno)); - return; + return(0); } - switch (fork()) { + 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); } - return; - default: - break; + close(fildes[1]); + signal(SIGPIPE, handle_sigpipe); + return(pager_pid); } - /* The original process becomes the pager. */ + /* The child process becomes the pager. */ close(fildes[1]); if (dup2(fildes[0], STDIN_FILENO) == -1) { @@ -968,37 +1038,12 @@ spawn_pager(void) 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"; - 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\n", - progname, strerror(errno)); + fprintf(stderr, "%s: exec %s: %s\n", + progname, argv[0], strerror(errno)); exit((int)MANDOCLEVEL_SYSERR); }