version 1.135, 2015/04/18 16:34:25 |
version 1.209, 2018/12/30 00:49:55 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010-2018 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010, 2012 Joerg Sonnenberger <joerg@netbsd.org> |
* Copyright (c) 2010, 2012 Joerg Sonnenberger <joerg@netbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
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#include "config.h" |
#include "config.h" |
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#include <sys/types.h> |
#include <sys/types.h> |
#if HAVE_MMAP |
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#include <sys/mman.h> |
#include <sys/mman.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
#endif |
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#include <sys/wait.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <errno.h> |
#include <errno.h> |
#include <fcntl.h> |
#include <fcntl.h> |
#include <signal.h> |
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#include <stdarg.h> |
#include <stdarg.h> |
#include <stdint.h> |
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#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <unistd.h> |
#include <unistd.h> |
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#include <zlib.h> |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "mandoc.h" |
#include "mandoc.h" |
#include "roff.h" |
#include "roff.h" |
#include "mdoc.h" |
#include "mdoc.h" |
#include "man.h" |
#include "man.h" |
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#include "mandoc_parse.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#include "roff_int.h" |
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#define REPARSE_LIMIT 1000 |
#define REPARSE_LIMIT 1000 |
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struct mparse { |
struct mparse { |
struct roff_man *man; /* man parser */ |
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struct roff *roff; /* roff parser (!NULL) */ |
struct roff *roff; /* roff parser (!NULL) */ |
const struct mchars *mchars; /* character table */ |
struct roff_man *man; /* man parser */ |
char *sodest; /* filename pointed to by .so */ |
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const char *file; /* filename of current input file */ |
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struct buf *primary; /* buffer currently being parsed */ |
struct buf *primary; /* buffer currently being parsed */ |
struct buf *secondary; /* preprocessed copy of input */ |
struct buf *secondary; /* copy of top level input */ |
const char *defos; /* default operating system */ |
struct buf *loop; /* open .while request line */ |
mandocmsg mmsg; /* warning/error message handler */ |
const char *os_s; /* default operating system */ |
enum mandoclevel file_status; /* status of current parse */ |
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enum mandoclevel wlevel; /* ignore messages below this */ |
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int options; /* parser options */ |
int options; /* parser options */ |
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int gzip; /* current input file is gzipped */ |
int filenc; /* encoding of the current file */ |
int filenc; /* encoding of the current file */ |
int reparse_count; /* finite interp. stack */ |
int reparse_count; /* finite interp. stack */ |
int line; /* line number in the file */ |
int line; /* line number in the file */ |
pid_t child; /* the gunzip(1) process */ |
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}; |
}; |
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static void choose_parser(struct mparse *); |
static void choose_parser(struct mparse *); |
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static void free_buf_list(struct buf *); |
static void resize_buf(struct buf *, size_t); |
static void resize_buf(struct buf *, size_t); |
static void mparse_buf_r(struct mparse *, struct buf, size_t, int); |
static int mparse_buf_r(struct mparse *, struct buf, size_t, int); |
static int read_whole_file(struct mparse *, const char *, int, |
static int read_whole_file(struct mparse *, int, struct buf *, int *); |
struct buf *, int *); |
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static void mparse_end(struct mparse *); |
static void mparse_end(struct mparse *); |
static void mparse_parse_buffer(struct mparse *, struct buf, |
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const char *); |
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static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = { |
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MANDOCERR_OK, |
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MANDOCERR_WARNING, |
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MANDOCERR_WARNING, |
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MANDOCERR_ERROR, |
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MANDOCERR_UNSUPP, |
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MANDOCERR_MAX, |
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MANDOCERR_MAX |
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}; |
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static const char * const mandocerrs[MANDOCERR_MAX] = { |
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"ok", |
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"generic warning", |
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/* related to the prologue */ |
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"missing manual title, using UNTITLED", |
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"missing manual title, using \"\"", |
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"lower case character in document title", |
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"missing manual section, using \"\"", |
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"unknown manual section", |
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"missing date, using today's date", |
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"cannot parse date, using it verbatim", |
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"missing Os macro, using \"\"", |
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"duplicate prologue macro", |
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"late prologue macro", |
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"skipping late title macro", |
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"prologue macros out of order", |
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/* related to document structure */ |
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".so is fragile, better use ln(1)", |
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"no document body", |
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"content before first section header", |
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"first section is not \"NAME\"", |
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"NAME section without name", |
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"NAME section without description", |
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"description not at the end of NAME", |
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"bad NAME section content", |
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"missing description line, using \"\"", |
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"sections out of conventional order", |
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"duplicate section title", |
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"unexpected section", |
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"unusual Xr order", |
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"unusual Xr punctuation", |
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"AUTHORS section without An macro", |
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/* related to macros and nesting */ |
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"obsolete macro", |
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"macro neither callable nor escaped", |
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"skipping paragraph macro", |
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"moving paragraph macro out of list", |
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"skipping no-space macro", |
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"blocks badly nested", |
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"nested displays are not portable", |
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"moving content out of list", |
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".Vt block has child macro", |
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"fill mode already enabled, skipping", |
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"fill mode already disabled, skipping", |
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"line scope broken", |
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/* related to missing macro arguments */ |
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"skipping empty request", |
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"conditional request controls empty scope", |
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"skipping empty macro", |
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"empty block", |
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"empty argument, using 0n", |
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"missing display type, using -ragged", |
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"list type is not the first argument", |
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"missing -width in -tag list, using 8n", |
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"missing utility name, using \"\"", |
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"missing function name, using \"\"", |
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"empty head in list item", |
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"empty list item", |
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"missing font type, using \\fR", |
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"unknown font type, using \\fR", |
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"nothing follows prefix", |
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"empty reference block", |
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"missing -std argument, adding it", |
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"missing option string, using \"\"", |
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"missing resource identifier, using \"\"", |
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"missing eqn box, using \"\"", |
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/* related to bad macro arguments */ |
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"unterminated quoted argument", |
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"duplicate argument", |
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"skipping duplicate argument", |
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"skipping duplicate display type", |
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"skipping duplicate list type", |
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"skipping -width argument", |
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"wrong number of cells", |
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"unknown AT&T UNIX version", |
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"comma in function argument", |
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"parenthesis in function name", |
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"invalid content in Rs block", |
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"invalid Boolean argument", |
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"unknown font, skipping request", |
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"odd number of characters in request", |
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/* related to plain text */ |
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"blank line in fill mode, using .sp", |
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"tab in filled text", |
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"whitespace at end of input line", |
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"bad comment style", |
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"invalid escape sequence", |
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"undefined string, using \"\"", |
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/* related to tables */ |
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"tbl line starts with span", |
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"tbl column starts with span", |
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"skipping vertical bar in tbl layout", |
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"generic error", |
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/* related to tables */ |
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"non-alphabetic character in tbl options", |
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"skipping unknown tbl option", |
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"missing tbl option argument", |
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"wrong tbl option argument size", |
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"empty tbl layout", |
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"invalid character in tbl layout", |
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"unmatched parenthesis in tbl layout", |
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"tbl without any data cells", |
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"ignoring data in spanned tbl cell", |
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"ignoring extra tbl data cells", |
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"data block open at end of tbl", |
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/* related to document structure and macros */ |
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NULL, |
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"input stack limit exceeded, infinite loop?", |
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"skipping bad character", |
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"skipping unknown macro", |
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"skipping insecure request", |
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"skipping item outside list", |
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"skipping column outside column list", |
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"skipping end of block that is not open", |
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"fewer RS blocks open, skipping", |
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"inserting missing end of block", |
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"appending missing end of block", |
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/* related to request and macro arguments */ |
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"escaped character not allowed in a name", |
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"NOT IMPLEMENTED: Bd -file", |
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"missing list type, using -item", |
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"missing manual name, using \"\"", |
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"uname(3) system call failed, using UNKNOWN", |
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"unknown standard specifier", |
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"skipping request without numeric argument", |
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"NOT IMPLEMENTED: .so with absolute path or \"..\"", |
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".so request failed", |
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"skipping all arguments", |
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"skipping excess arguments", |
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"divide by zero", |
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"unsupported feature", |
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"input too large", |
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"unsupported control character", |
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"unsupported roff request", |
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"eqn delim option in tbl", |
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"unsupported tbl layout modifier", |
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"ignoring macro in table", |
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}; |
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static const char * const mandoclevels[MANDOCLEVEL_MAX] = { |
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"SUCCESS", |
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"RESERVED", |
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"WARNING", |
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"ERROR", |
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"UNSUPP", |
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"BADARG", |
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"SYSERR" |
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}; |
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static void |
static void |
resize_buf(struct buf *buf, size_t initial) |
resize_buf(struct buf *buf, size_t initial) |
{ |
{ |
Line 256 resize_buf(struct buf *buf, size_t initial) |
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Line 75 resize_buf(struct buf *buf, size_t initial) |
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} |
} |
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static void |
static void |
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free_buf_list(struct buf *buf) |
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{ |
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struct buf *tmp; |
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while (buf != NULL) { |
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tmp = buf; |
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buf = tmp->next; |
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free(tmp->buf); |
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free(tmp); |
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} |
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} |
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static void |
choose_parser(struct mparse *curp) |
choose_parser(struct mparse *curp) |
{ |
{ |
char *cp, *ep; |
char *cp, *ep; |
Line 290 choose_parser(struct mparse *curp) |
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Line 122 choose_parser(struct mparse *curp) |
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} |
} |
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if (format == MPARSE_MDOC) { |
if (format == MPARSE_MDOC) { |
if (curp->man == NULL) |
curp->man->meta.macroset = MACROSET_MDOC; |
curp->man = mdoc_alloc( |
if (curp->man->mdocmac == NULL) |
curp->roff, curp, curp->defos, |
curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX); |
MPARSE_QUICK & curp->options ? 1 : 0); |
} else { |
else |
curp->man->meta.macroset = MACROSET_MAN; |
curp->man->macroset = MACROSET_MDOC; |
if (curp->man->manmac == NULL) |
return; |
curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX); |
} |
} |
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curp->man->meta.first->tok = TOKEN_NONE; |
/* Fall back to man(7) as a last resort. */ |
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if (curp->man == NULL) |
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curp->man = man_alloc( |
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curp->roff, curp, curp->defos, |
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MPARSE_QUICK & curp->options ? 1 : 0); |
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else |
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curp->man->macroset = MACROSET_MAN; |
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} |
} |
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/* |
/* |
Line 316 choose_parser(struct mparse *curp) |
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Line 140 choose_parser(struct mparse *curp) |
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* macros, inline equations, and input line traps) |
* macros, inline equations, and input line traps) |
* and indirectly (for .so file inclusion). |
* and indirectly (for .so file inclusion). |
*/ |
*/ |
static void |
static int |
mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start) |
mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start) |
{ |
{ |
const struct tbl_span *span; |
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struct buf ln; |
struct buf ln; |
const char *save_file; |
struct buf *firstln, *lastln, *thisln, *loop; |
char *cp; |
char *cp; |
size_t pos; /* byte number in the ln buffer */ |
size_t pos; /* byte number in the ln buffer */ |
enum rofferr rr; |
int line_result, result; |
int of; |
int of; |
int lnn; /* line number in the real file */ |
int lnn; /* line number in the real file */ |
int fd; |
int fd; |
pid_t save_child; |
int inloop; /* Saw .while on this level. */ |
unsigned char c; |
unsigned char c; |
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memset(&ln, 0, sizeof(ln)); |
ln.sz = 256; |
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ln.buf = mandoc_malloc(ln.sz); |
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ln.next = NULL; |
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firstln = loop = NULL; |
lnn = curp->line; |
lnn = curp->line; |
pos = 0; |
pos = 0; |
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inloop = 0; |
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result = ROFF_CONT; |
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while (i < blk.sz) { |
while (i < blk.sz && (blk.buf[i] != '\0' || pos != 0)) { |
if (0 == pos && '\0' == blk.buf[i]) |
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break; |
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if (start) { |
if (start) { |
curp->line = lnn; |
curp->line = lnn; |
curp->reparse_count = 0; |
curp->reparse_count = 0; |
Line 369 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 193 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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/* |
/* |
* Make sure we have space for the worst |
* Make sure we have space for the worst |
* case of 11 bytes: "\\[u10ffff]\0" |
* case of 12 bytes: "\\[u10ffff]\n\0" |
*/ |
*/ |
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if (pos + 11 > ln.sz) |
if (pos + 12 > ln.sz) |
resize_buf(&ln, 256); |
resize_buf(&ln, 256); |
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/* |
/* |
Line 383 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 207 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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if (c & 0x80) { |
if (c & 0x80) { |
if ( ! (curp->filenc && preconv_encode( |
if ( ! (curp->filenc && preconv_encode( |
&blk, &i, &ln, &pos, &curp->filenc))) { |
&blk, &i, &ln, &pos, &curp->filenc))) { |
mandoc_vmsg(MANDOCERR_CHAR_BAD, curp, |
mandoc_msg(MANDOCERR_CHAR_BAD, |
curp->line, pos, "0x%x", c); |
curp->line, pos, "0x%x", c); |
ln.buf[pos++] = '?'; |
ln.buf[pos++] = '?'; |
i++; |
i++; |
Line 396 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 220 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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*/ |
*/ |
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if (c == 0x7f || (c < 0x20 && c != 0x09)) { |
if (c == 0x7f || (c < 0x20 && c != 0x09)) { |
mandoc_vmsg(c == 0x00 || c == 0x04 || |
mandoc_msg(c == 0x00 || c == 0x04 || |
c > 0x0a ? MANDOCERR_CHAR_BAD : |
c > 0x0a ? MANDOCERR_CHAR_BAD : |
MANDOCERR_CHAR_UNSUPP, |
MANDOCERR_CHAR_UNSUPP, |
curp, curp->line, pos, "0x%x", c); |
curp->line, pos, "0x%x", c); |
i++; |
i++; |
if (c != '\r') |
if (c != '\r') |
ln.buf[pos++] = '?'; |
ln.buf[pos++] = '?'; |
continue; |
continue; |
} |
} |
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/* Trailing backslash = a plain char. */ |
ln.buf[pos++] = blk.buf[i++]; |
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} |
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ln.buf[pos] = '\0'; |
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if (blk.buf[i] != '\\' || i + 1 == blk.sz) { |
/* |
ln.buf[pos++] = blk.buf[i++]; |
* Maintain a lookaside buffer of all lines. |
continue; |
* parsed from this input source. |
} |
*/ |
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/* |
thisln = mandoc_malloc(sizeof(*thisln)); |
* Found escape and at least one other character. |
thisln->buf = mandoc_strdup(ln.buf); |
* When it's a newline character, skip it. |
thisln->sz = strlen(ln.buf) + 1; |
* When there is a carriage return in between, |
thisln->next = NULL; |
* skip that one as well. |
if (firstln == NULL) { |
*/ |
firstln = lastln = thisln; |
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if (curp->secondary == NULL) |
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curp->secondary = firstln; |
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} else { |
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lastln->next = thisln; |
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lastln = thisln; |
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} |
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if ('\r' == blk.buf[i + 1] && i + 2 < blk.sz && |
/* XXX Ugly hack to mark the end of the input. */ |
'\n' == blk.buf[i + 2]) |
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++i; |
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if ('\n' == blk.buf[i + 1]) { |
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i += 2; |
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++lnn; |
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continue; |
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} |
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if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) { |
if (i == blk.sz || blk.buf[i] == '\0') { |
i += 2; |
ln.buf[pos++] = '\n'; |
/* Comment, skip to end of line */ |
ln.buf[pos] = '\0'; |
for (; i < blk.sz; ++i) { |
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if ('\n' == blk.buf[i]) { |
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++i; |
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++lnn; |
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break; |
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} |
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} |
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|
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/* Backout trailing whitespaces */ |
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for (; pos > 0; --pos) { |
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if (ln.buf[pos - 1] != ' ') |
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break; |
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if (pos > 2 && ln.buf[pos - 2] == '\\') |
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break; |
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} |
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break; |
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} |
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/* Catch escaped bogus characters. */ |
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c = (unsigned char) blk.buf[i+1]; |
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|
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if ( ! (isascii(c) && |
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(isgraph(c) || isblank(c)))) { |
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mandoc_vmsg(MANDOCERR_CHAR_BAD, curp, |
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curp->line, pos, "0x%x", c); |
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i += 2; |
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ln.buf[pos++] = '?'; |
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continue; |
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} |
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|
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/* Some other escape sequence, copy & cont. */ |
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ln.buf[pos++] = blk.buf[i++]; |
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ln.buf[pos++] = blk.buf[i++]; |
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} |
} |
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if (pos >= ln.sz) |
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resize_buf(&ln, 256); |
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ln.buf[pos] = '\0'; |
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/* |
/* |
* A significant amount of complexity is contained by |
* A significant amount of complexity is contained by |
* the roff preprocessor. It's line-oriented but can be |
* the roff preprocessor. It's line-oriented but can be |
Line 484 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 269 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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*/ |
*/ |
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of = 0; |
of = 0; |
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rerun: |
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line_result = roff_parseln(curp->roff, curp->line, &ln, &of); |
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/* |
/* Process options. */ |
* Maintain a lookaside buffer of all parsed lines. We |
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* only do this if mparse_keep() has been invoked (the |
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* buffer may be accessed with mparse_getkeep()). |
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*/ |
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if (curp->secondary) { |
if (line_result & ROFF_APPEND) |
curp->secondary->buf = mandoc_realloc( |
assert(line_result == (ROFF_IGN | ROFF_APPEND)); |
curp->secondary->buf, |
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curp->secondary->sz + pos + 2); |
if (line_result & ROFF_USERCALL) |
memcpy(curp->secondary->buf + |
assert((line_result & ROFF_MASK) == ROFF_REPARSE); |
curp->secondary->sz, |
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ln.buf, pos); |
if (line_result & ROFF_USERRET) { |
curp->secondary->sz += pos; |
assert(line_result == (ROFF_IGN | ROFF_USERRET)); |
curp->secondary->buf |
if (start == 0) { |
[curp->secondary->sz] = '\n'; |
/* Return from the current macro. */ |
curp->secondary->sz++; |
result = ROFF_USERRET; |
curp->secondary->buf |
goto out; |
[curp->secondary->sz] = '\0'; |
} |
} |
} |
rerun: |
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rr = roff_parseln(curp->roff, curp->line, &ln, &of); |
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|
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switch (rr) { |
switch (line_result & ROFF_LOOPMASK) { |
case ROFF_REPARSE: |
case ROFF_IGN: |
if (REPARSE_LIMIT >= ++curp->reparse_count) |
break; |
mparse_buf_r(curp, ln, of, 0); |
case ROFF_WHILE: |
else |
if (curp->loop != NULL) { |
mandoc_msg(MANDOCERR_ROFFLOOP, curp, |
if (loop == curp->loop) |
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break; |
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mandoc_msg(MANDOCERR_WHILE_NEST, |
curp->line, pos, NULL); |
curp->line, pos, NULL); |
pos = 0; |
} |
continue; |
curp->loop = thisln; |
case ROFF_APPEND: |
loop = NULL; |
pos = strlen(ln.buf); |
inloop = 1; |
continue; |
break; |
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case ROFF_LOOPCONT: |
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case ROFF_LOOPEXIT: |
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if (curp->loop == NULL) { |
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mandoc_msg(MANDOCERR_WHILE_FAIL, |
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curp->line, pos, NULL); |
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break; |
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} |
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if (inloop == 0) { |
|
mandoc_msg(MANDOCERR_WHILE_INTO, |
|
curp->line, pos, NULL); |
|
curp->loop = loop = NULL; |
|
break; |
|
} |
|
if (line_result & ROFF_LOOPCONT) |
|
loop = curp->loop; |
|
else { |
|
curp->loop = loop = NULL; |
|
inloop = 0; |
|
} |
|
break; |
|
default: |
|
abort(); |
|
} |
|
|
|
/* Process the main instruction from the roff parser. */ |
|
|
|
switch (line_result & ROFF_MASK) { |
|
case ROFF_IGN: |
|
break; |
|
case ROFF_CONT: |
|
if (curp->man->meta.macroset == MACROSET_NONE) |
|
choose_parser(curp); |
|
if ((curp->man->meta.macroset == MACROSET_MDOC ? |
|
mdoc_parseln(curp->man, curp->line, ln.buf, of) : |
|
man_parseln(curp->man, curp->line, ln.buf, of) |
|
) == 2) |
|
goto out; |
|
break; |
case ROFF_RERUN: |
case ROFF_RERUN: |
goto rerun; |
goto rerun; |
case ROFF_IGN: |
case ROFF_REPARSE: |
pos = 0; |
if (++curp->reparse_count > REPARSE_LIMIT) { |
continue; |
/* Abort and return to the top level. */ |
|
result = ROFF_IGN; |
|
mandoc_msg(MANDOCERR_ROFFLOOP, |
|
curp->line, pos, NULL); |
|
goto out; |
|
} |
|
result = mparse_buf_r(curp, ln, of, 0); |
|
if (line_result & ROFF_USERCALL) { |
|
roff_userret(curp->roff); |
|
/* Continue normally. */ |
|
if (result & ROFF_USERRET) |
|
result = ROFF_CONT; |
|
} |
|
if (start == 0 && result != ROFF_CONT) |
|
goto out; |
|
break; |
case ROFF_SO: |
case ROFF_SO: |
if ( ! (curp->options & MPARSE_SO) && |
if ( ! (curp->options & MPARSE_SO) && |
(i >= blk.sz || blk.buf[i] == '\0')) { |
(i >= blk.sz || blk.buf[i] == '\0')) { |
curp->sodest = mandoc_strdup(ln.buf + of); |
curp->man->meta.sodest = |
free(ln.buf); |
mandoc_strdup(ln.buf + of); |
return; |
goto out; |
} |
} |
/* |
if ((fd = mparse_open(curp, ln.buf + of)) != -1) { |
* We remove `so' clauses from our lookaside |
|
* buffer because we're going to descend into |
|
* the file recursively. |
|
*/ |
|
if (curp->secondary) |
|
curp->secondary->sz -= pos + 1; |
|
save_file = curp->file; |
|
save_child = curp->child; |
|
if (mparse_open(curp, &fd, ln.buf + of) == |
|
MANDOCLEVEL_OK) { |
|
mparse_readfd(curp, fd, ln.buf + of); |
mparse_readfd(curp, fd, ln.buf + of); |
curp->file = save_file; |
close(fd); |
} else { |
} else { |
curp->file = save_file; |
mandoc_msg(MANDOCERR_SO_FAIL, |
mandoc_vmsg(MANDOCERR_SO_FAIL, |
curp->line, of, ".so %s: %s", |
curp, curp->line, pos, |
ln.buf + of, strerror(errno)); |
".so %s", ln.buf + of); |
|
ln.sz = mandoc_asprintf(&cp, |
ln.sz = mandoc_asprintf(&cp, |
".sp\nSee the file %s.\n.sp", |
".sp\nSee the file %s.\n.sp", |
ln.buf + of); |
ln.buf + of); |
|
|
of = 0; |
of = 0; |
mparse_buf_r(curp, ln, of, 0); |
mparse_buf_r(curp, ln, of, 0); |
} |
} |
curp->child = save_child; |
|
pos = 0; |
|
continue; |
|
default: |
|
break; |
break; |
|
default: |
|
abort(); |
} |
} |
|
|
/* |
/* Start the next input line. */ |
* If input parsers have not been allocated, do so now. |
|
* We keep these instanced between parsers, but set them |
|
* locally per parse routine since we can use different |
|
* parsers with each one. |
|
*/ |
|
|
|
if (curp->man == NULL || |
if (loop != NULL && |
curp->man->macroset == MACROSET_NONE) |
(line_result & ROFF_LOOPMASK) == ROFF_IGN) |
choose_parser(curp); |
loop = loop->next; |
|
|
/* |
if (loop != NULL) { |
* Lastly, push down into the parsers themselves. |
if ((line_result & ROFF_APPEND) == 0) |
* If libroff returns ROFF_TBL, then add it to the |
*ln.buf = '\0'; |
* currently open parse. Since we only get here if |
if (ln.sz < loop->sz) |
* there does exist data (see tbl_data.c), we're |
resize_buf(&ln, loop->sz); |
* guaranteed that something's been allocated. |
(void)strlcat(ln.buf, loop->buf, ln.sz); |
* Do the same for ROFF_EQN. |
of = 0; |
*/ |
goto rerun; |
|
} |
|
|
if (rr == ROFF_TBL) { |
pos = (line_result & ROFF_APPEND) ? strlen(ln.buf) : 0; |
while ((span = roff_span(curp->roff)) != NULL) |
|
if (curp->man->macroset == MACROSET_MDOC) |
|
mdoc_addspan(curp->man, span); |
|
else |
|
man_addspan(curp->man, span); |
|
} else if (rr == ROFF_EQN) { |
|
if (curp->man->macroset == MACROSET_MDOC) |
|
mdoc_addeqn(curp->man, roff_eqn(curp->roff)); |
|
else |
|
man_addeqn(curp->man, roff_eqn(curp->roff)); |
|
} else if ((curp->man->macroset == MACROSET_MDOC ? |
|
mdoc_parseln(curp->man, curp->line, ln.buf, of) : |
|
man_parseln(curp->man, curp->line, ln.buf, of)) == 2) |
|
break; |
|
|
|
/* Temporary buffers typically are not full. */ |
|
|
|
if (0 == start && '\0' == blk.buf[i]) |
|
break; |
|
|
|
/* Start the next input line. */ |
|
|
|
pos = 0; |
|
} |
} |
|
out: |
|
if (inloop) { |
|
if (result != ROFF_USERRET) |
|
mandoc_msg(MANDOCERR_WHILE_OUTOF, |
|
curp->line, pos, NULL); |
|
curp->loop = NULL; |
|
} |
free(ln.buf); |
free(ln.buf); |
|
if (firstln != curp->secondary) |
|
free_buf_list(firstln); |
|
return result; |
} |
} |
|
|
static int |
static int |
read_whole_file(struct mparse *curp, const char *file, int fd, |
read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap) |
struct buf *fb, int *with_mmap) |
|
{ |
{ |
|
struct stat st; |
|
gzFile gz; |
size_t off; |
size_t off; |
ssize_t ssz; |
ssize_t ssz; |
|
int gzerrnum, retval; |
|
|
#if HAVE_MMAP |
if (fstat(fd, &st) == -1) { |
struct stat st; |
mandoc_msg(MANDOCERR_FILE, 0, 0, |
if (-1 == fstat(fd, &st)) { |
"fstat: %s", strerror(errno)); |
perror(file); |
return 0; |
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
} |
|
|
/* |
/* |
Line 635 read_whole_file(struct mparse *curp, const char *file, |
|
Line 441 read_whole_file(struct mparse *curp, const char *file, |
|
* concerned that this is going to tank any machines. |
* concerned that this is going to tank any machines. |
*/ |
*/ |
|
|
if (S_ISREG(st.st_mode)) { |
if (curp->gzip == 0 && S_ISREG(st.st_mode)) { |
if (st.st_size > 0x7fffffff) { |
if (st.st_size > 0x7fffffff) { |
mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL); |
mandoc_msg(MANDOCERR_TOOLARGE, 0, 0, NULL); |
return(0); |
return 0; |
} |
} |
*with_mmap = 1; |
*with_mmap = 1; |
fb->sz = (size_t)st.st_size; |
fb->sz = (size_t)st.st_size; |
fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0); |
fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0); |
if (fb->buf != MAP_FAILED) |
if (fb->buf != MAP_FAILED) |
return(1); |
return 1; |
} |
} |
#endif |
|
|
|
|
if (curp->gzip) { |
|
/* |
|
* Duplicating the file descriptor is required |
|
* because we will have to call gzclose(3) |
|
* to free memory used internally by zlib, |
|
* but that will also close the file descriptor, |
|
* which this function must not do. |
|
*/ |
|
if ((fd = dup(fd)) == -1) { |
|
mandoc_msg(MANDOCERR_FILE, 0, 0, |
|
"dup: %s", strerror(errno)); |
|
return 0; |
|
} |
|
if ((gz = gzdopen(fd, "rb")) == NULL) { |
|
mandoc_msg(MANDOCERR_FILE, 0, 0, |
|
"gzdopen: %s", strerror(errno)); |
|
close(fd); |
|
return 0; |
|
} |
|
} else |
|
gz = NULL; |
|
|
/* |
/* |
* If this isn't a regular file (like, say, stdin), then we must |
* If this isn't a regular file (like, say, stdin), then we must |
* go the old way and just read things in bit by bit. |
* go the old way and just read things in bit by bit. |
Line 655 read_whole_file(struct mparse *curp, const char *file, |
|
Line 482 read_whole_file(struct mparse *curp, const char *file, |
|
|
|
*with_mmap = 0; |
*with_mmap = 0; |
off = 0; |
off = 0; |
|
retval = 0; |
fb->sz = 0; |
fb->sz = 0; |
fb->buf = NULL; |
fb->buf = NULL; |
for (;;) { |
for (;;) { |
if (off == fb->sz) { |
if (off == fb->sz) { |
if (fb->sz == (1U << 31)) { |
if (fb->sz == (1U << 31)) { |
mandoc_msg(MANDOCERR_TOOLARGE, curp, |
mandoc_msg(MANDOCERR_TOOLARGE, 0, 0, NULL); |
0, 0, NULL); |
|
break; |
break; |
} |
} |
resize_buf(fb, 65536); |
resize_buf(fb, 65536); |
} |
} |
ssz = read(fd, fb->buf + (int)off, fb->sz - off); |
ssz = curp->gzip ? |
|
gzread(gz, fb->buf + (int)off, fb->sz - off) : |
|
read(fd, fb->buf + (int)off, fb->sz - off); |
if (ssz == 0) { |
if (ssz == 0) { |
fb->sz = off; |
fb->sz = off; |
return(1); |
retval = 1; |
|
break; |
} |
} |
if (ssz == -1) { |
if (ssz == -1) { |
perror(file); |
if (curp->gzip) |
exit((int)MANDOCLEVEL_SYSERR); |
(void)gzerror(gz, &gzerrnum); |
|
mandoc_msg(MANDOCERR_FILE, 0, 0, "read: %s", |
|
curp->gzip && gzerrnum != Z_ERRNO ? |
|
zError(gzerrnum) : strerror(errno)); |
|
break; |
} |
} |
off += (size_t)ssz; |
off += (size_t)ssz; |
} |
} |
|
|
free(fb->buf); |
if (curp->gzip && (gzerrnum = gzclose(gz)) != Z_OK) |
fb->buf = NULL; |
mandoc_msg(MANDOCERR_FILE, 0, 0, "gzclose: %s", |
return(0); |
gzerrnum == Z_ERRNO ? strerror(errno) : |
|
zError(gzerrnum)); |
|
if (retval == 0) { |
|
free(fb->buf); |
|
fb->buf = NULL; |
|
} |
|
return retval; |
} |
} |
|
|
static void |
static void |
mparse_end(struct mparse *curp) |
mparse_end(struct mparse *curp) |
{ |
{ |
|
if (curp->man->meta.macroset == MACROSET_NONE) |
if (curp->man == NULL && curp->sodest == NULL) |
curp->man->meta.macroset = MACROSET_MAN; |
curp->man = man_alloc(curp->roff, curp, curp->defos, |
if (curp->man->meta.macroset == MACROSET_MDOC) |
curp->options & MPARSE_QUICK ? 1 : 0); |
|
if (curp->man->macroset == MACROSET_NONE) |
|
curp->man->macroset = MACROSET_MAN; |
|
if (curp->man->macroset == MACROSET_MDOC) |
|
mdoc_endparse(curp->man); |
mdoc_endparse(curp->man); |
else |
else |
man_endparse(curp->man); |
man_endparse(curp->man); |
roff_endparse(curp->roff); |
roff_endparse(curp->roff); |
} |
} |
|
|
static void |
/* |
mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file) |
* Read the whole file into memory and call the parsers. |
|
* Called recursively when an .so request is encountered. |
|
*/ |
|
void |
|
mparse_readfd(struct mparse *curp, int fd, const char *filename) |
{ |
{ |
struct buf *svprimary; |
|
const char *svfile; |
|
size_t offset; |
|
static int recursion_depth; |
static int recursion_depth; |
|
|
if (64 < recursion_depth) { |
struct buf blk; |
mandoc_msg(MANDOCERR_ROFFLOOP, curp, curp->line, 0, NULL); |
struct buf *save_primary; |
|
const char *save_filename; |
|
size_t offset; |
|
int save_filenc, save_lineno; |
|
int with_mmap; |
|
|
|
if (recursion_depth > 64) { |
|
mandoc_msg(MANDOCERR_ROFFLOOP, curp->line, 0, NULL); |
return; |
return; |
} |
} |
|
if (read_whole_file(curp, fd, &blk, &with_mmap) == 0) |
|
return; |
|
|
/* Line number is per-file. */ |
/* |
svfile = curp->file; |
* Save some properties of the parent file. |
curp->file = file; |
*/ |
svprimary = curp->primary; |
|
|
save_primary = curp->primary; |
|
save_filenc = curp->filenc; |
|
save_lineno = curp->line; |
|
save_filename = mandoc_msg_getinfilename(); |
|
|
curp->primary = &blk; |
curp->primary = &blk; |
|
curp->filenc = curp->options & (MPARSE_UTF8 | MPARSE_LATIN1); |
curp->line = 1; |
curp->line = 1; |
recursion_depth++; |
mandoc_msg_setinfilename(filename); |
|
|
/* Skip an UTF-8 byte order mark. */ |
/* Skip an UTF-8 byte order mark. */ |
if (curp->filenc & MPARSE_UTF8 && blk.sz > 2 && |
if (curp->filenc & MPARSE_UTF8 && blk.sz > 2 && |
Line 730 mparse_parse_buffer(struct mparse *curp, struct buf bl |
|
Line 582 mparse_parse_buffer(struct mparse *curp, struct buf bl |
|
} else |
} else |
offset = 0; |
offset = 0; |
|
|
|
recursion_depth++; |
mparse_buf_r(curp, blk, offset, 1); |
mparse_buf_r(curp, blk, offset, 1); |
|
|
if (--recursion_depth == 0) |
if (--recursion_depth == 0) |
mparse_end(curp); |
mparse_end(curp); |
|
|
curp->primary = svprimary; |
/* |
curp->file = svfile; |
* Clean up and restore saved parent properties. |
} |
*/ |
|
|
enum mandoclevel |
if (with_mmap) |
mparse_readmem(struct mparse *curp, void *buf, size_t len, |
munmap(blk.buf, blk.sz); |
const char *file) |
else |
{ |
free(blk.buf); |
struct buf blk; |
|
|
|
blk.buf = buf; |
curp->primary = save_primary; |
blk.sz = len; |
curp->filenc = save_filenc; |
|
curp->line = save_lineno; |
mparse_parse_buffer(curp, blk, file); |
if (save_filename != NULL) |
return(curp->file_status); |
mandoc_msg_setinfilename(save_filename); |
} |
} |
|
|
/* |
int |
* Read the whole file into memory and call the parsers. |
mparse_open(struct mparse *curp, const char *file) |
* Called recursively when an .so request is encountered. |
|
*/ |
|
enum mandoclevel |
|
mparse_readfd(struct mparse *curp, int fd, const char *file) |
|
{ |
{ |
struct buf blk; |
|
int with_mmap; |
|
int save_filenc; |
|
|
|
if (read_whole_file(curp, file, fd, &blk, &with_mmap)) { |
|
save_filenc = curp->filenc; |
|
curp->filenc = curp->options & |
|
(MPARSE_UTF8 | MPARSE_LATIN1); |
|
mparse_parse_buffer(curp, blk, file); |
|
curp->filenc = save_filenc; |
|
#if HAVE_MMAP |
|
if (with_mmap) |
|
munmap(blk.buf, blk.sz); |
|
else |
|
#endif |
|
free(blk.buf); |
|
} |
|
|
|
if (fd != STDIN_FILENO && close(fd) == -1) |
|
perror(file); |
|
|
|
mparse_wait(curp); |
|
return(curp->file_status); |
|
} |
|
|
|
enum mandoclevel |
|
mparse_open(struct mparse *curp, int *fd, const char *file) |
|
{ |
|
int pfd[2]; |
|
int save_errno; |
|
char *cp; |
char *cp; |
|
int fd; |
|
|
curp->file = file; |
cp = strrchr(file, '.'); |
|
curp->gzip = (cp != NULL && ! strcmp(cp + 1, "gz")); |
|
|
/* Unless zipped, try to just open the file. */ |
/* First try to use the filename as it is. */ |
|
|
if ((cp = strrchr(file, '.')) == NULL || |
if ((fd = open(file, O_RDONLY)) != -1) |
strcmp(cp + 1, "gz")) { |
return fd; |
curp->child = 0; |
|
if ((*fd = open(file, O_RDONLY)) != -1) |
|
return(MANDOCLEVEL_OK); |
|
|
|
/* Open failed; try to append ".gz". */ |
/* |
|
* If that doesn't work and the filename doesn't |
|
* already end in .gz, try appending .gz. |
|
*/ |
|
|
|
if ( ! curp->gzip) { |
mandoc_asprintf(&cp, "%s.gz", file); |
mandoc_asprintf(&cp, "%s.gz", file); |
file = cp; |
fd = open(cp, O_RDONLY); |
} else |
|
cp = NULL; |
|
|
|
/* Before forking, make sure the file can be read. */ |
|
|
|
save_errno = errno; |
|
if (access(file, R_OK) == -1) { |
|
if (cp != NULL) |
|
errno = save_errno; |
|
free(cp); |
free(cp); |
*fd = -1; |
if (fd != -1) { |
curp->child = 0; |
curp->gzip = 1; |
mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno)); |
return fd; |
return(MANDOCLEVEL_ERROR); |
|
} |
|
|
|
/* Run gunzip(1). */ |
|
|
|
if (pipe(pfd) == -1) { |
|
perror("pipe"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
|
|
|
switch (curp->child = fork()) { |
|
case -1: |
|
perror("fork"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
case 0: |
|
close(pfd[0]); |
|
if (dup2(pfd[1], STDOUT_FILENO) == -1) { |
|
perror("dup"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
} |
signal(SIGPIPE, SIG_DFL); |
|
execlp("gunzip", "gunzip", "-c", file, NULL); |
|
perror("exec"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
default: |
|
close(pfd[1]); |
|
*fd = pfd[0]; |
|
return(MANDOCLEVEL_OK); |
|
} |
} |
} |
|
|
|
enum mandoclevel |
/* Neither worked, give up. */ |
mparse_wait(struct mparse *curp) |
|
{ |
|
int status; |
|
|
|
if (curp->child == 0) |
return -1; |
return(MANDOCLEVEL_OK); |
|
|
|
if (waitpid(curp->child, &status, 0) == -1) { |
|
perror("wait"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
|
curp->child = 0; |
|
if (WIFSIGNALED(status)) { |
|
mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0, |
|
"gunzip died from signal %d", WTERMSIG(status)); |
|
return(MANDOCLEVEL_ERROR); |
|
} |
|
if (WEXITSTATUS(status)) { |
|
mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0, |
|
"gunzip failed with code %d", WEXITSTATUS(status)); |
|
return(MANDOCLEVEL_ERROR); |
|
} |
|
return(MANDOCLEVEL_OK); |
|
} |
} |
|
|
struct mparse * |
struct mparse * |
mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg, |
mparse_alloc(int options, enum mandoc_os os_e, const char *os_s) |
const struct mchars *mchars, const char *defos) |
|
{ |
{ |
struct mparse *curp; |
struct mparse *curp; |
|
|
curp = mandoc_calloc(1, sizeof(struct mparse)); |
curp = mandoc_calloc(1, sizeof(struct mparse)); |
|
|
curp->options = options; |
curp->options = options; |
curp->wlevel = wlevel; |
curp->os_s = os_s; |
curp->mmsg = mmsg; |
|
curp->defos = defos; |
|
|
|
curp->mchars = mchars; |
curp->roff = roff_alloc(options); |
curp->roff = roff_alloc(curp, curp->mchars, options); |
curp->man = roff_man_alloc(curp->roff, curp->os_s, |
if (curp->options & MPARSE_MDOC) |
curp->options & MPARSE_QUICK ? 1 : 0); |
curp->man = mdoc_alloc( |
if (curp->options & MPARSE_MDOC) { |
curp->roff, curp, curp->defos, |
curp->man->meta.macroset = MACROSET_MDOC; |
curp->options & MPARSE_QUICK ? 1 : 0); |
if (curp->man->mdocmac == NULL) |
if (curp->options & MPARSE_MAN) |
curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX); |
curp->man = man_alloc( |
} else if (curp->options & MPARSE_MAN) { |
curp->roff, curp, curp->defos, |
curp->man->meta.macroset = MACROSET_MAN; |
curp->options & MPARSE_QUICK ? 1 : 0); |
if (curp->man->manmac == NULL) |
|
curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX); |
return(curp); |
} |
|
curp->man->meta.first->tok = TOKEN_NONE; |
|
curp->man->meta.os_e = os_e; |
|
return curp; |
} |
} |
|
|
void |
void |
mparse_reset(struct mparse *curp) |
mparse_reset(struct mparse *curp) |
{ |
{ |
|
|
roff_reset(curp->roff); |
roff_reset(curp->roff); |
|
roff_man_reset(curp->man); |
if (curp->man != NULL) { |
free_buf_list(curp->secondary); |
if (curp->man->macroset == MACROSET_MDOC) |
curp->secondary = NULL; |
mdoc_reset(curp->man); |
curp->gzip = 0; |
else |
|
man_reset(curp->man); |
|
curp->man->macroset = MACROSET_NONE; |
|
} |
|
if (curp->secondary) |
|
curp->secondary->sz = 0; |
|
|
|
curp->file_status = MANDOCLEVEL_OK; |
|
|
|
free(curp->sodest); |
|
curp->sodest = NULL; |
|
} |
} |
|
|
void |
void |
mparse_free(struct mparse *curp) |
mparse_free(struct mparse *curp) |
{ |
{ |
|
roffhash_free(curp->man->mdocmac); |
if (curp->man->macroset == MACROSET_MDOC) |
roffhash_free(curp->man->manmac); |
mdoc_free(curp->man); |
roff_man_free(curp->man); |
if (curp->man->macroset == MACROSET_MAN) |
roff_free(curp->roff); |
man_free(curp->man); |
free_buf_list(curp->secondary); |
if (curp->roff) |
|
roff_free(curp->roff); |
|
if (curp->secondary) |
|
free(curp->secondary->buf); |
|
|
|
free(curp->secondary); |
|
free(curp->sodest); |
|
free(curp); |
free(curp); |
} |
} |
|
|
void |
struct roff_meta * |
mparse_result(struct mparse *curp, struct roff_man **man, |
mparse_result(struct mparse *curp) |
char **sodest) |
|
{ |
{ |
|
if (curp->options & MPARSE_VALIDATE) { |
if (sodest && NULL != (*sodest = curp->sodest)) { |
if (curp->man->meta.macroset == MACROSET_MDOC) |
*man = NULL; |
mdoc_validate(curp->man); |
return; |
else |
|
man_validate(curp->man); |
} |
} |
if (man) |
return &curp->man->meta; |
*man = curp->man; |
|
} |
} |
|
|
void |
void |
mandoc_vmsg(enum mandocerr t, struct mparse *m, |
mparse_copy(const struct mparse *p) |
int ln, int pos, const char *fmt, ...) |
|
{ |
{ |
char buf[256]; |
struct buf *buf; |
va_list ap; |
|
|
|
va_start(ap, fmt); |
for (buf = p->secondary; buf != NULL; buf = buf->next) |
(void)vsnprintf(buf, sizeof(buf), fmt, ap); |
puts(buf->buf); |
va_end(ap); |
|
|
|
mandoc_msg(t, m, ln, pos, buf); |
|
} |
|
|
|
void |
|
mandoc_msg(enum mandocerr er, struct mparse *m, |
|
int ln, int col, const char *msg) |
|
{ |
|
enum mandoclevel level; |
|
|
|
level = MANDOCLEVEL_UNSUPP; |
|
while (er < mandoclimits[level]) |
|
level--; |
|
|
|
if (level < m->wlevel && er != MANDOCERR_FILE) |
|
return; |
|
|
|
if (m->mmsg) |
|
(*m->mmsg)(er, level, m->file, ln, col, msg); |
|
|
|
if (m->file_status < level) |
|
m->file_status = level; |
|
} |
|
|
|
const char * |
|
mparse_strerror(enum mandocerr er) |
|
{ |
|
|
|
return(mandocerrs[er]); |
|
} |
|
|
|
const char * |
|
mparse_strlevel(enum mandoclevel lvl) |
|
{ |
|
return(mandoclevels[lvl]); |
|
} |
|
|
|
void |
|
mparse_keep(struct mparse *p) |
|
{ |
|
|
|
assert(NULL == p->secondary); |
|
p->secondary = mandoc_calloc(1, sizeof(struct buf)); |
|
} |
|
|
|
const char * |
|
mparse_getkeep(const struct mparse *p) |
|
{ |
|
|
|
assert(p->secondary); |
|
return(p->secondary->sz ? p->secondary->buf : NULL); |
|
} |
} |