-/* $Id: read.c,v 1.86 2014/09/07 23:25:01 schwarze Exp $ */
+/* $Id: read.c,v 1.163 2017/03/07 20:00:08 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2010, 2012 Joerg Sonnenberger <joerg@netbsd.org>
*
* 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
#include "config.h"
#include <sys/types.h>
-#if HAVE_MMAP
#include <sys/mman.h>
#include <sys/stat.h>
-#endif
-#include <sys/wait.h>
#include <assert.h>
#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
-#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <zlib.h>
-#include "mandoc.h"
#include "mandoc_aux.h"
-#include "libmandoc.h"
+#include "mandoc.h"
+#include "roff.h"
#include "mdoc.h"
#include "man.h"
-#include "main.h"
+#include "libmandoc.h"
+#include "roff_int.h"
#define REPARSE_LIMIT 1000
-struct buf {
- char *buf; /* binary input buffer */
- size_t sz; /* size of binary buffer */
-};
-
struct mparse {
- struct man *pman; /* persistent man parser */
- struct mdoc *pmdoc; /* persistent mdoc parser */
- struct man *man; /* man parser */
- struct mdoc *mdoc; /* mdoc parser */
struct roff *roff; /* roff parser (!NULL) */
+ struct roff_man *man; /* man parser */
char *sodest; /* filename pointed to by .so */
const char *file; /* filename of current input file */
struct buf *primary; /* buffer currently being parsed */
enum mandoclevel file_status; /* status of current parse */
enum mandoclevel wlevel; /* ignore messages below this */
int options; /* parser options */
+ int gzip; /* current input file is gzipped */
+ int filenc; /* encoding of the current file */
int reparse_count; /* finite interp. stack */
int line; /* line number in the file */
};
static void choose_parser(struct mparse *);
static void resize_buf(struct buf *, size_t);
-static void mparse_buf_r(struct mparse *, struct buf, int);
+static int mparse_buf_r(struct mparse *, struct buf, size_t, int);
static int read_whole_file(struct mparse *, const char *, int,
struct buf *, int *);
static void mparse_end(struct mparse *);
MANDOCERR_WARNING,
MANDOCERR_WARNING,
MANDOCERR_ERROR,
- MANDOCERR_FATAL,
+ MANDOCERR_UNSUPP,
MANDOCERR_MAX,
MANDOCERR_MAX
};
"lower case character in document title",
"missing manual section, using \"\"",
"unknown manual section",
- "unknown manual volume or arch",
"missing date, using today's date",
"cannot parse date, using it verbatim",
"missing Os macro, using \"\"",
"no document body",
"content before first section header",
"first section is not \"NAME\"",
- "bad NAME section contents",
+ "NAME section without Nm before Nd",
+ "NAME section without description",
+ "description not at the end of NAME",
+ "bad NAME section content",
+ "missing comma before name",
+ "missing description line, using \"\"",
+ "description line outside NAME section",
"sections out of conventional order",
"duplicate section title",
"unexpected section",
+ "unusual Xr order",
+ "unusual Xr punctuation",
"AUTHORS section without An macro",
/* related to macros and nesting */
"obsolete macro",
+ "macro neither callable nor escaped",
"skipping paragraph macro",
"moving paragraph macro out of list",
"skipping no-space macro",
"blocks badly nested",
"nested displays are not portable",
"moving content out of list",
- ".Vt block has child macro",
"fill mode already enabled, skipping",
"fill mode already disabled, skipping",
"line scope broken",
"skipping empty request",
"conditional request controls empty scope",
"skipping empty macro",
+ "empty block",
"empty argument, using 0n",
- "argument count wrong",
"missing display type, using -ragged",
"list type is not the first argument",
- "missing -width in -tag list, using 8n",
+ "missing -width in -tag list, using 6n",
"missing utility name, using \"\"",
+ "missing function name, using \"\"",
"empty head in list item",
"empty list item",
"missing font type, using \\fR",
"unknown font type, using \\fR",
+ "nothing follows prefix",
+ "empty reference block",
+ "missing section argument",
"missing -std argument, adding it",
+ "missing option string, using \"\"",
+ "missing resource identifier, using \"\"",
+ "missing eqn box, using \"\"",
/* related to bad macro arguments */
"unterminated quoted argument",
"skipping duplicate display type",
"skipping duplicate list type",
"skipping -width argument",
+ "wrong number of cells",
"unknown AT&T UNIX version",
+ "comma in function argument",
+ "parenthesis in function name",
"invalid content in Rs block",
"invalid Boolean argument",
"unknown font, skipping request",
+ "odd number of characters in request",
/* related to plain text */
"blank line in fill mode, using .sp",
"tab in filled text",
"whitespace at end of input line",
+ "new sentence, new line",
"bad comment style",
"invalid escape sequence",
"undefined string, using \"\"",
- "generic error",
+ /* related to tables */
+ "tbl line starts with span",
+ "tbl column starts with span",
+ "skipping vertical bar in tbl layout",
- /* related to equations */
- "unexpected equation scope closure",
- "equation scope open on exit",
- "overlapping equation scopes",
- "unexpected end of equation",
- "equation syntax error",
+ "generic error",
/* related to tables */
- "bad table syntax",
- "bad table option",
- "bad table layout",
- "no table layout cells specified",
- "no table data cells specified",
- "ignore data in cell",
- "data block still open",
- "ignoring extra data cells",
+ "non-alphabetic character in tbl options",
+ "skipping unknown tbl option",
+ "missing tbl option argument",
+ "wrong tbl option argument size",
+ "empty tbl layout",
+ "invalid character in tbl layout",
+ "unmatched parenthesis in tbl layout",
+ "tbl without any data cells",
+ "ignoring data in spanned tbl cell",
+ "ignoring extra tbl data cells",
+ "data block open at end of tbl",
/* related to document structure and macros */
+ NULL,
"input stack limit exceeded, infinite loop?",
"skipping bad character",
"skipping unknown macro",
+ "skipping insecure request",
"skipping item outside list",
"skipping column outside column list",
"skipping end of block that is not open",
+ "fewer RS blocks open, skipping",
"inserting missing end of block",
"appending missing end of block",
/* related to request and macro arguments */
"escaped character not allowed in a name",
- "argument count wrong",
+ "NOT IMPLEMENTED: Bd -file",
+ "skipping display without arguments",
"missing list type, using -item",
"missing manual name, using \"\"",
"uname(3) system call failed, using UNKNOWN",
"unknown standard specifier",
"skipping request without numeric argument",
+ "NOT IMPLEMENTED: .so with absolute path or \"..\"",
+ ".so request failed",
"skipping all arguments",
"skipping excess arguments",
+ "divide by zero",
- "generic fatal error",
-
+ "unsupported feature",
"input too large",
- "NOT IMPLEMENTED: Bd -file",
- "NOT IMPLEMENTED: .so with absolute path or \"..\"",
- ".so request failed",
-
- /* system errors */
- "cannot dup file descriptor",
- "cannot exec",
- "gunzip failed with code",
- "cannot fork",
- NULL,
- "cannot open pipe",
- "cannot read file",
- "gunzip died from signal",
- "cannot stat file",
- "wait failed",
+ "unsupported control character",
+ "unsupported roff request",
+ "eqn delim option in tbl",
+ "unsupported tbl layout modifier",
+ "ignoring macro in table",
};
static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
"RESERVED",
"WARNING",
"ERROR",
- "FATAL",
+ "UNSUPP",
"BADARG",
"SYSERR"
};
}
if (format == MPARSE_MDOC) {
- if (NULL == curp->pmdoc)
- curp->pmdoc = mdoc_alloc(
- curp->roff, curp, curp->defos,
- MPARSE_QUICK & curp->options ? 1 : 0);
- assert(curp->pmdoc);
- curp->mdoc = curp->pmdoc;
- return;
+ mdoc_hash_init();
+ curp->man->macroset = MACROSET_MDOC;
+ curp->man->first->tok = TOKEN_NONE;
+ } else {
+ man_hash_init();
+ curp->man->macroset = MACROSET_MAN;
+ curp->man->first->tok = TOKEN_NONE;
}
-
- /* Fall back to man(7) as a last resort. */
-
- if (NULL == curp->pman)
- curp->pman = man_alloc(curp->roff, curp,
- MPARSE_QUICK & curp->options ? 1 : 0);
- assert(curp->pman);
- curp->man = curp->pman;
}
/*
- * Main parse routine for an opened file. This is called for each
- * opened file and simply loops around the full input file, possibly
- * nesting (i.e., with `so').
+ * Main parse routine for a buffer.
+ * It assumes encoding and line numbering are already set up.
+ * It can recurse directly (for invocations of user-defined
+ * macros, inline equations, and input line traps)
+ * and indirectly (for .so file inclusion).
*/
-static void
-mparse_buf_r(struct mparse *curp, struct buf blk, int start)
+static int
+mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start)
{
const struct tbl_span *span;
struct buf ln;
+ const char *save_file;
+ char *cp;
+ size_t pos; /* byte number in the ln buffer */
+ size_t j; /* auxiliary byte number in the blk buffer */
enum rofferr rr;
- int i, of, rc;
- int pos; /* byte number in the ln buffer */
+ int of;
int lnn; /* line number in the real file */
+ int fd;
unsigned char c;
- memset(&ln, 0, sizeof(struct buf));
+ memset(&ln, 0, sizeof(ln));
lnn = curp->line;
pos = 0;
- for (i = 0; i < (int)blk.sz; ) {
+ while (i < blk.sz) {
if (0 == pos && '\0' == blk.buf[i])
break;
if (start) {
curp->line = lnn;
curp->reparse_count = 0;
+
+ if (lnn < 3 &&
+ curp->filenc & MPARSE_UTF8 &&
+ curp->filenc & MPARSE_LATIN1)
+ curp->filenc = preconv_cue(&blk, i);
}
- while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
+ while (i < blk.sz && (start || blk.buf[i] != '\0')) {
/*
* When finding an unescaped newline character,
* Skip a preceding carriage return, if any.
*/
- if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
+ if ('\r' == blk.buf[i] && i + 1 < blk.sz &&
'\n' == blk.buf[i + 1])
++i;
if ('\n' == blk.buf[i]) {
}
/*
- * Make sure we have space for at least
- * one backslash and one other character
- * and the trailing NUL byte.
+ * Make sure we have space for the worst
+ * case of 11 bytes: "\\[u10ffff]\0"
*/
- if (pos + 2 >= (int)ln.sz)
+ if (pos + 11 > ln.sz)
resize_buf(&ln, 256);
/*
- * Warn about bogus characters. If you're using
- * non-ASCII encoding, you're screwing your
- * readers. Since I'd rather this not happen,
- * I'll be helpful and replace these characters
- * with "?", so we don't display gibberish.
- * Note to manual writers: use special characters.
+ * Encode 8-bit input.
*/
- c = (unsigned char) blk.buf[i];
+ c = blk.buf[i];
+ if (c & 0x80) {
+ if ( ! (curp->filenc && preconv_encode(
+ &blk, &i, &ln, &pos, &curp->filenc))) {
+ mandoc_vmsg(MANDOCERR_CHAR_BAD, curp,
+ curp->line, pos, "0x%x", c);
+ ln.buf[pos++] = '?';
+ i++;
+ }
+ continue;
+ }
- if ( ! (isascii(c) &&
- (isgraph(c) || isblank(c)))) {
- mandoc_vmsg(MANDOCERR_BADCHAR, curp,
- curp->line, pos, "0x%x", c);
+ /*
+ * Exclude control characters.
+ */
+
+ if (c == 0x7f || (c < 0x20 && c != 0x09)) {
+ mandoc_vmsg(c == 0x00 || c == 0x04 ||
+ c > 0x0a ? MANDOCERR_CHAR_BAD :
+ MANDOCERR_CHAR_UNSUPP,
+ curp, curp->line, pos, "0x%x", c);
i++;
- ln.buf[pos++] = '?';
+ if (c != '\r')
+ ln.buf[pos++] = '?';
continue;
}
/* Trailing backslash = a plain char. */
- if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
+ if (blk.buf[i] != '\\' || i + 1 == blk.sz) {
ln.buf[pos++] = blk.buf[i++];
continue;
}
* skip that one as well.
*/
- if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
+ if ('\r' == blk.buf[i + 1] && i + 2 < blk.sz &&
'\n' == blk.buf[i + 2])
++i;
if ('\n' == blk.buf[i + 1]) {
}
if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
+ j = i;
i += 2;
/* Comment, skip to end of line */
- for (; i < (int)blk.sz; ++i) {
- if ('\n' == blk.buf[i]) {
- ++i;
- ++lnn;
- break;
- }
+ for (; i < blk.sz; ++i) {
+ if (blk.buf[i] != '\n')
+ continue;
+ if (blk.buf[i - 1] == ' ' ||
+ blk.buf[i - 1] == '\t')
+ mandoc_msg(
+ MANDOCERR_SPACE_EOL,
+ curp, curp->line,
+ pos + i-1 - j, NULL);
+ ++i;
+ ++lnn;
+ break;
}
/* Backout trailing whitespaces */
if ( ! (isascii(c) &&
(isgraph(c) || isblank(c)))) {
- mandoc_vmsg(MANDOCERR_BADCHAR, curp,
+ mandoc_vmsg(MANDOCERR_CHAR_BAD, curp,
curp->line, pos, "0x%x", c);
i += 2;
ln.buf[pos++] = '?';
ln.buf[pos++] = blk.buf[i++];
}
- if (pos >= (int)ln.sz)
+ if (pos >= ln.sz)
resize_buf(&ln, 256);
ln.buf[pos] = '\0';
[curp->secondary->sz] = '\0';
}
rerun:
- rr = roff_parseln(curp->roff, curp->line,
- &ln.buf, &ln.sz, of, &of);
+ rr = roff_parseln(curp->roff, curp->line, &ln, &of);
switch (rr) {
case ROFF_REPARSE:
- if (REPARSE_LIMIT >= ++curp->reparse_count)
- mparse_buf_r(curp, ln, 0);
- else
+ if (++curp->reparse_count > REPARSE_LIMIT)
mandoc_msg(MANDOCERR_ROFFLOOP, curp,
curp->line, pos, NULL);
- pos = 0;
- continue;
+ else if (mparse_buf_r(curp, ln, of, 0) == 1 ||
+ start == 1) {
+ pos = 0;
+ continue;
+ }
+ free(ln.buf);
+ return 0;
case ROFF_APPEND:
- pos = (int)strlen(ln.buf);
+ pos = strlen(ln.buf);
continue;
case ROFF_RERUN:
goto rerun;
case ROFF_IGN:
pos = 0;
continue;
- case ROFF_ERR:
- assert(MANDOCLEVEL_FATAL <= curp->file_status);
- break;
case ROFF_SO:
- if (0 == (MPARSE_SO & curp->options) &&
- (i >= (int)blk.sz || '\0' == blk.buf[i])) {
+ if ( ! (curp->options & MPARSE_SO) &&
+ (i >= blk.sz || blk.buf[i] == '\0')) {
curp->sodest = mandoc_strdup(ln.buf + of);
free(ln.buf);
- return;
+ return 1;
}
/*
* We remove `so' clauses from our lookaside
*/
if (curp->secondary)
curp->secondary->sz -= pos + 1;
- mparse_readfd(curp, -1, ln.buf + of);
- if (MANDOCLEVEL_FATAL <= curp->file_status) {
+ save_file = curp->file;
+ if ((fd = mparse_open(curp, ln.buf + of)) != -1) {
+ mparse_readfd(curp, fd, ln.buf + of);
+ close(fd);
+ curp->file = save_file;
+ } else {
+ curp->file = save_file;
mandoc_vmsg(MANDOCERR_SO_FAIL,
curp, curp->line, pos,
".so %s", ln.buf + of);
- break;
+ ln.sz = mandoc_asprintf(&cp,
+ ".sp\nSee the file %s.\n.sp",
+ ln.buf + of);
+ free(ln.buf);
+ ln.buf = cp;
+ of = 0;
+ mparse_buf_r(curp, ln, of, 0);
}
pos = 0;
continue;
break;
}
- /*
- * If we encounter errors in the recursive parse, make
- * sure we don't continue parsing.
- */
-
- if (MANDOCLEVEL_FATAL <= curp->file_status)
- break;
-
- /*
- * 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 || curp->mdoc))
+ if (curp->man->macroset == MACROSET_NONE)
choose_parser(curp);
/*
* Do the same for ROFF_EQN.
*/
- rc = -1;
-
- if (ROFF_TBL == rr)
- while (NULL != (span = roff_span(curp->roff))) {
- rc = curp->man ?
- man_addspan(curp->man, span) :
- mdoc_addspan(curp->mdoc, span);
- if (0 == rc)
- break;
- }
- else if (ROFF_EQN == rr)
- rc = curp->mdoc ?
- mdoc_addeqn(curp->mdoc,
- roff_eqn(curp->roff)) :
- man_addeqn(curp->man,
- roff_eqn(curp->roff));
- else if (curp->man || curp->mdoc)
- rc = curp->man ?
- man_parseln(curp->man,
- curp->line, ln.buf, of) :
- mdoc_parseln(curp->mdoc,
- curp->line, ln.buf, of);
-
- if (0 == rc) {
- assert(MANDOCLEVEL_FATAL <= curp->file_status);
- break;
- } else if (2 == rc)
- break;
+ if (rr == ROFF_TBL)
+ while ((span = roff_span(curp->roff)) != NULL)
+ roff_addtbl(curp->man, span);
+ else if (rr == ROFF_EQN)
+ roff_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. */
}
free(ln.buf);
+ return 1;
}
static int
read_whole_file(struct mparse *curp, const char *file, int fd,
struct buf *fb, int *with_mmap)
{
+ struct stat st;
+ gzFile gz;
size_t off;
ssize_t ssz;
-#if HAVE_MMAP
- struct stat st;
- if (-1 == fstat(fd, &st)) {
- curp->file_status = MANDOCLEVEL_SYSERR;
- if (curp->mmsg)
- (*curp->mmsg)(MANDOCERR_SYSSTAT, curp->file_status,
- file, 0, 0, strerror(errno));
- return(0);
- }
+ if (fstat(fd, &st) == -1)
+ err((int)MANDOCLEVEL_SYSERR, "%s", file);
/*
* If we're a regular file, try just reading in the whole entry
* concerned that this is going to tank any machines.
*/
- if (S_ISREG(st.st_mode)) {
- if (st.st_size >= (1U << 31)) {
- curp->file_status = MANDOCLEVEL_FATAL;
- if (curp->mmsg)
- (*curp->mmsg)(MANDOCERR_TOOLARGE,
- curp->file_status, file, 0, 0, NULL);
- return(0);
+ if (curp->gzip == 0 && S_ISREG(st.st_mode)) {
+ if (st.st_size > 0x7fffffff) {
+ mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL);
+ return 0;
}
*with_mmap = 1;
fb->sz = (size_t)st.st_size;
fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
if (fb->buf != MAP_FAILED)
- return(1);
+ return 1;
}
-#endif
+
+ if (curp->gzip) {
+ if ((gz = gzdopen(fd, "rb")) == NULL)
+ err((int)MANDOCLEVEL_SYSERR, "%s", file);
+ } else
+ gz = NULL;
/*
* If this isn't a regular file (like, say, stdin), then we must
for (;;) {
if (off == fb->sz) {
if (fb->sz == (1U << 31)) {
- curp->file_status = MANDOCLEVEL_FATAL;
- if (curp->mmsg)
- (*curp->mmsg)(MANDOCERR_TOOLARGE,
- curp->file_status,
- file, 0, 0, NULL);
+ mandoc_msg(MANDOCERR_TOOLARGE, curp,
+ 0, 0, NULL);
break;
}
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) {
fb->sz = off;
- return(1);
- }
- if (ssz == -1) {
- curp->file_status = MANDOCLEVEL_SYSERR;
- if (curp->mmsg)
- (*curp->mmsg)(MANDOCERR_SYSREAD,
- curp->file_status, file, 0, 0,
- strerror(errno));
- break;
+ return 1;
}
+ if (ssz == -1)
+ err((int)MANDOCLEVEL_SYSERR, "%s", file);
off += (size_t)ssz;
}
free(fb->buf);
fb->buf = NULL;
- return(0);
+ return 0;
}
static void
mparse_end(struct mparse *curp)
{
-
- if (MANDOCLEVEL_FATAL <= curp->file_status)
- return;
-
- if (curp->mdoc == NULL &&
- curp->man == NULL &&
- curp->sodest == NULL) {
- if (curp->options & MPARSE_MDOC)
- curp->mdoc = curp->pmdoc;
- else {
- if (curp->pman == NULL)
- curp->pman = man_alloc(curp->roff, curp,
- curp->options & MPARSE_QUICK ? 1 : 0);
- curp->man = curp->pman;
- }
- }
-
- if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
- assert(MANDOCLEVEL_FATAL <= curp->file_status);
- return;
- }
-
- if (curp->man && ! man_endparse(curp->man)) {
- assert(MANDOCLEVEL_FATAL <= curp->file_status);
- return;
- }
-
+ if (curp->man->macroset == MACROSET_NONE)
+ curp->man->macroset = MACROSET_MAN;
+ if (curp->man->macroset == MACROSET_MDOC)
+ mdoc_endparse(curp->man);
+ else
+ man_endparse(curp->man);
roff_endparse(curp->roff);
}
{
struct buf *svprimary;
const char *svfile;
+ size_t offset;
static int recursion_depth;
if (64 < recursion_depth) {
curp->line = 1;
recursion_depth++;
- mparse_buf_r(curp, blk, 1);
+ /* Skip an UTF-8 byte order mark. */
+ if (curp->filenc & MPARSE_UTF8 && blk.sz > 2 &&
+ (unsigned char)blk.buf[0] == 0xef &&
+ (unsigned char)blk.buf[1] == 0xbb &&
+ (unsigned char)blk.buf[2] == 0xbf) {
+ offset = 3;
+ curp->filenc &= ~MPARSE_LATIN1;
+ } else
+ offset = 0;
- if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)
+ mparse_buf_r(curp, blk, offset, 1);
+
+ if (--recursion_depth == 0)
mparse_end(curp);
curp->primary = svprimary;
}
enum mandoclevel
-mparse_readmem(struct mparse *curp, const void *buf, size_t len,
+mparse_readmem(struct mparse *curp, void *buf, size_t len,
const char *file)
{
struct buf blk;
- blk.buf = UNCONST(buf);
+ blk.buf = buf;
blk.sz = len;
mparse_parse_buffer(curp, blk, file);
- return(curp->file_status);
+ return curp->file_status;
}
+/*
+ * Read the whole file into memory and call the parsers.
+ * 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;
-
- if (-1 == fd && -1 == (fd = open(file, O_RDONLY, 0))) {
- curp->file_status = MANDOCLEVEL_SYSERR;
- if (curp->mmsg)
- (*curp->mmsg)(MANDOCERR_SYSOPEN,
- curp->file_status,
- file, 0, 0, strerror(errno));
- goto out;
+ 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 (with_mmap)
+ munmap(blk.buf, blk.sz);
+ else
+ free(blk.buf);
}
-
- /*
- * Run for each opened file; may be called more than once for
- * each full parse sequence if the opened file is nested (i.e.,
- * from `so'). Simply sucks in the whole file and moves into
- * the parse phase for the file.
- */
-
- if ( ! read_whole_file(curp, file, fd, &blk, &with_mmap))
- goto out;
-
- mparse_parse_buffer(curp, blk, file);
-
-#if HAVE_MMAP
- if (with_mmap)
- munmap(blk.buf, blk.sz);
- else
-#endif
- free(blk.buf);
-
- if (STDIN_FILENO != fd && -1 == close(fd))
- perror(file);
-out:
- return(curp->file_status);
+ return curp->file_status;
}
-enum mandoclevel
-mparse_open(struct mparse *curp, int *fd, const char *file,
- pid_t *child_pid)
+int
+mparse_open(struct mparse *curp, const char *file)
{
- int pfd[2];
char *cp;
- enum mandocerr err;
+ int fd;
- pfd[1] = -1;
curp->file = file;
- if ((cp = strrchr(file, '.')) == NULL ||
- strcmp(cp + 1, "gz")) {
- *child_pid = 0;
- if ((*fd = open(file, O_RDONLY)) == -1) {
- err = MANDOCERR_SYSOPEN;
- goto out;
- }
- return(MANDOCLEVEL_OK);
- }
+ cp = strrchr(file, '.');
+ curp->gzip = (cp != NULL && ! strcmp(cp + 1, "gz"));
- if (pipe(pfd) == -1) {
- err = MANDOCERR_SYSPIPE;
- goto out;
- }
+ /* First try to use the filename as it is. */
- switch (*child_pid = fork()) {
- case -1:
- err = MANDOCERR_SYSFORK;
- close(pfd[0]);
- close(pfd[1]);
- pfd[1] = -1;
- break;
- case 0:
- close(pfd[0]);
- if (dup2(pfd[1], STDOUT_FILENO) == -1) {
- err = MANDOCERR_SYSDUP;
- break;
+ if ((fd = open(file, O_RDONLY)) != -1)
+ return fd;
+
+ /*
+ * 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);
+ fd = open(cp, O_RDONLY);
+ free(cp);
+ if (fd != -1) {
+ curp->gzip = 1;
+ return fd;
}
- execlp("gunzip", "gunzip", "-c", file, NULL);
- err = MANDOCERR_SYSEXEC;
- break;
- default:
- close(pfd[1]);
- *fd = pfd[0];
- return(MANDOCLEVEL_OK);
}
-out:
- *fd = -1;
- *child_pid = 0;
- curp->file_status = MANDOCLEVEL_SYSERR;
- if (curp->mmsg)
- (*curp->mmsg)(err, curp->file_status, file,
- 0, 0, strerror(errno));
- if (pfd[1] != -1)
- exit(1);
- return(curp->file_status);
-}
+ /* Neither worked, give up. */
-enum mandoclevel
-mparse_wait(struct mparse *curp, pid_t child_pid)
-{
- int status;
-
- if (waitpid(child_pid, &status, 0) == -1) {
- mandoc_msg(MANDOCERR_SYSWAIT, curp, 0, 0,
- strerror(errno));
- curp->file_status = MANDOCLEVEL_SYSERR;
- return(curp->file_status);
- }
- if (WIFSIGNALED(status)) {
- mandoc_vmsg(MANDOCERR_SYSSIG, curp, 0, 0,
- "%d", WTERMSIG(status));
- curp->file_status = MANDOCLEVEL_SYSERR;
- return(curp->file_status);
- }
- if (WEXITSTATUS(status)) {
- mandoc_vmsg(MANDOCERR_SYSEXIT, curp, 0, 0,
- "%d", WEXITSTATUS(status));
- curp->file_status = MANDOCLEVEL_SYSERR;
- return(curp->file_status);
- }
- return(MANDOCLEVEL_OK);
+ mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno));
+ return -1;
}
struct mparse *
-mparse_alloc(int options, enum mandoclevel wlevel,
- mandocmsg mmsg, const char *defos)
+mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg,
+ const char *defos)
{
struct mparse *curp;
- assert(wlevel <= MANDOCLEVEL_FATAL);
-
curp = mandoc_calloc(1, sizeof(struct mparse));
curp->options = options;
curp->defos = defos;
curp->roff = roff_alloc(curp, options);
- if (curp->options & MPARSE_MDOC)
- curp->pmdoc = mdoc_alloc(
- curp->roff, curp, curp->defos,
- curp->options & MPARSE_QUICK ? 1 : 0);
- if (curp->options & MPARSE_MAN)
- curp->pman = man_alloc(curp->roff, curp,
- curp->options & MPARSE_QUICK ? 1 : 0);
-
- return(curp);
+ curp->man = roff_man_alloc( curp->roff, curp, curp->defos,
+ curp->options & MPARSE_QUICK ? 1 : 0);
+ if (curp->options & MPARSE_MDOC) {
+ mdoc_hash_init();
+ curp->man->macroset = MACROSET_MDOC;
+ } else if (curp->options & MPARSE_MAN) {
+ man_hash_init();
+ curp->man->macroset = MACROSET_MAN;
+ }
+ curp->man->first->tok = TOKEN_NONE;
+ return curp;
}
void
mparse_reset(struct mparse *curp)
{
-
roff_reset(curp->roff);
+ roff_man_reset(curp->man);
+
+ free(curp->sodest);
+ curp->sodest = NULL;
- if (curp->mdoc)
- mdoc_reset(curp->mdoc);
- if (curp->man)
- man_reset(curp->man);
if (curp->secondary)
curp->secondary->sz = 0;
curp->file_status = MANDOCLEVEL_OK;
- curp->mdoc = NULL;
- curp->man = NULL;
-
- free(curp->sodest);
- curp->sodest = NULL;
+ curp->gzip = 0;
}
void
mparse_free(struct mparse *curp)
{
- if (curp->pmdoc)
- mdoc_free(curp->pmdoc);
- if (curp->pman)
- man_free(curp->pman);
- if (curp->roff)
- roff_free(curp->roff);
+ roff_man_free(curp->man);
+ roff_free(curp->roff);
if (curp->secondary)
free(curp->secondary->buf);
}
void
-mparse_result(struct mparse *curp,
- struct mdoc **mdoc, struct man **man, char **sodest)
+mparse_result(struct mparse *curp, struct roff_man **man,
+ char **sodest)
{
if (sodest && NULL != (*sodest = curp->sodest)) {
- *mdoc = NULL;
*man = NULL;
return;
}
- if (mdoc)
- *mdoc = curp->mdoc;
if (man)
*man = curp->man;
}
+void
+mparse_updaterc(struct mparse *curp, enum mandoclevel *rc)
+{
+ if (curp->file_status > *rc)
+ *rc = curp->file_status;
+}
+
void
mandoc_vmsg(enum mandocerr t, struct mparse *m,
int ln, int pos, const char *fmt, ...)
{
enum mandoclevel level;
- level = MANDOCLEVEL_FATAL;
+ level = MANDOCLEVEL_UNSUPP;
while (er < mandoclimits[level])
level--;
- if (level < m->wlevel)
+ if (level < m->wlevel && er != MANDOCERR_FILE)
return;
if (m->mmsg)
mparse_strerror(enum mandocerr er)
{
- return(mandocerrs[er]);
+ return mandocerrs[er];
}
const char *
mparse_strlevel(enum mandoclevel lvl)
{
- return(mandoclevels[lvl]);
+ return mandoclevels[lvl];
}
void
{
assert(p->secondary);
- return(p->secondary->sz ? p->secondary->buf : NULL);
+ return p->secondary->sz ? p->secondary->buf : NULL;
}
git.ckatri.com / mandoc.git / blobdiff