mandoc/read.c - diff

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Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/read.c between version 1.107 and 1.174

version 1.107, 2015/01/14 17:49:15

version 1.174, 2017/06/10 01:48:53

Line 1

/* $Id$ */

* 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

Line 19

#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 "libmandoc.h"

#include "roff_int.h"

#define REPARSE_LIMIT 1000

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) */

const struct mchars *mchars; /* character table */

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 */

Line 60 struct mparse {

Line 58 struct mparse {

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 */

pid_t child; /* the gunzip(1) process */

};

static void choose_parser(struct mparse *);

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,

struct buf *, int *);

static void mparse_end(struct mparse *);

Line 77 static void mparse_parse_buffer(struct mparse *, str

Line 75 static void mparse_parse_buffer(struct mparse *, str

static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {

MANDOCERR_OK,

MANDOCERR_STYLE,

MANDOCERR_WARNING,

MANDOCERR_ERROR,

MANDOCERR_FATAL,

MANDOCERR_UNSUPP,

MANDOCERR_MAX,

MANDOCERR_MAX

};

Line 88 static const enum mandocerr mandoclimits[MANDOCLEVEL_M

Line 86 static const enum mandocerr mandoclimits[MANDOCLEVEL_M

static const char * const mandocerrs[MANDOCERR_MAX] = {

"ok",

"generic style suggestion",

"useless macro",

"consider using OS macro",

"errnos out of order",

"duplicate errno",

"description line ends with a full stop",

"no blank before trailing delimiter",

"generic warning",

/* related to the prologue */

Line 109 static const char * const mandocerrs[MANDOCERR_MAX] =

Line 116 static const char * const mandocerrs[MANDOCERR_MAX] =

"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",

Line 126 static const char * const mandocerrs[MANDOCERR_MAX] =

Line 139 static const char * const mandocerrs[MANDOCERR_MAX] =

"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 blank line in line scope",

/* related to missing macro arguments */

"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 */

Line 156 static const char * const mandocerrs[MANDOCERR_MAX] =

Line 174 static const char * const mandocerrs[MANDOCERR_MAX] =

"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",

"unknown library 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 \"\"",

/* related to tables */

"tbl line starts with span",

"tbl column starts with span",

"skipping vertical bar in tbl layout",

"generic error",

/* related to equations */

"unexpected equation scope closure",

"equation scope open on exit",

"overlapping equation scopes",

"unexpected end of equation",

/* related to tables */

"bad table syntax",

"non-alphabetic character in tbl options",

"bad table option",

"skipping unknown tbl option",

"bad table layout",

"missing tbl option argument",

"no table layout cells specified",

"wrong tbl option argument size",

"no table data cells specified",

"empty tbl layout",

"ignore data in cell",

"invalid character in tbl layout",

"data block still open",

"unmatched parenthesis in tbl layout",

"ignoring extra data cells",

"tbl without any data cells",

"ignoring macro in table",

"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",

"argument is not numeric, using 1",

"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: .so with absolute path or \"..\"",

"unsupported control character",

".so request failed",

"unsupported roff request",

"eqn delim option in tbl",

/* system errors */

"unsupported tbl layout modifier",

"gunzip failed with code",

"ignoring macro in table",

NULL,

"gunzip died from signal",

};

static const char * const mandoclevels[MANDOCLEVEL_MAX] = {

"SUCCESS",

"RESERVED",

"STYLE",

"WARNING",

"ERROR",

"FATAL",

"UNSUPP",

"BADARG",

"SYSERR"

};

Line 279 choose_parser(struct mparse *curp)

Line 305 choose_parser(struct mparse *curp)

}

if (format == MPARSE_MDOC) {

if (NULL == curp->pmdoc)

curp->man->macroset = MACROSET_MDOC;

curp->pmdoc = 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 {

assert(curp->pmdoc);

curp->man->macroset = MACROSET_MAN;

curp->mdoc = curp->pmdoc;

if (curp->man->manmac == NULL)

return;

curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX);

}

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, curp->defos,

MPARSE_QUICK & curp->options ? 1 : 0);

assert(curp->pman);

curp->man = curp->pman;

}

Line 305 choose_parser(struct mparse *curp)

Line 323 choose_parser(struct mparse *curp)

* macros, inline equations, and input line traps)

* and indirectly (for .so file inclusion).

static void

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 */

enum rofferr rr;

int of;

int lnn; /* line number in the real file */

int fd;

unsigned char c;

memset(&ln, 0, sizeof(ln));

Line 368 mparse_buf_r(struct mparse *curp, struct buf blk, size

Line 389 mparse_buf_r(struct mparse *curp, struct buf blk, size

if (c & 0x80) {

if ( ! (curp->filenc && preconv_encode(

&blk, &i, &ln, &pos, &curp->filenc))) {

mandoc_vmsg(MANDOCERR_BADCHAR,

mandoc_vmsg(MANDOCERR_CHAR_BAD, curp,

curp, curp->line, pos,

curp->line, pos, "0x%x", c);

"0x%x", c);

ln.buf[pos++] = '?';

i++;

}

Line 382 mparse_buf_r(struct mparse *curp, struct buf blk, size

Line 402 mparse_buf_r(struct mparse *curp, struct buf blk, size

if (c == 0x7f || (c < 0x20 && c != 0x09)) {

mandoc_vmsg(MANDOCERR_BADCHAR, curp,

mandoc_vmsg(c == 0x00 || c == 0x04 ||

curp->line, pos, "0x%x", c);

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 == blk.sz) {

ln.buf[pos++] = blk.buf[i++];

continue;

}

* Found escape and at least one other character.

* When it's a newline character, skip it.

* When there is a carriage return in between,

* skip that one as well.

if ('\r' == blk.buf[i + 1] && i + 2 < blk.sz &&

'\n' == blk.buf[i + 2])

++i;

if ('\n' == blk.buf[i + 1]) {

i += 2;

++lnn;

continue;

}

if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {

i += 2;

/* Comment, skip to end of line */

for (; i < blk.sz; ++i) {

if ('\n' == blk.buf[i]) {

++i;

++lnn;

break;

}

/* Backout trailing whitespaces */

for (; pos > 0; --pos) {

if (ln.buf[pos - 1] != ' ')

break;

if (pos > 2 && ln.buf[pos - 2] == '\\')

break;

}

break;

}

/* Catch escaped bogus characters. */

c = (unsigned char) blk.buf[i+1];

if ( ! (isascii(c) &&

(isgraph(c) || isblank(c)))) {

mandoc_vmsg(MANDOCERR_BADCHAR, curp,

curp->line, pos, "0x%x", c);

i += 2;

ln.buf[pos++] = '?';

continue;

}

/* Some other escape sequence, copy & cont. */

ln.buf[pos++] = blk.buf[i++];

}

if (pos >= ln.sz)

if (pos + 1 >= ln.sz)

resize_buf(&ln, 256);

if (i == blk.sz || blk.buf[i] == '\0')

ln.buf[pos++] = '\n';

ln.buf[pos] = '\0';

Line 493 rerun:

Line 458 rerun:

switch (rr) {

case ROFF_REPARSE:

if (REPARSE_LIMIT >= ++curp->reparse_count)

if (++curp->reparse_count > REPARSE_LIMIT)

mparse_buf_r(curp, ln, of, 0);

else

mandoc_msg(MANDOCERR_ROFFLOOP, curp,

curp->line, pos, NULL);

pos = 0;

else if (mparse_buf_r(curp, ln, of, 0) == 1 ||

continue;

start == 1) {

pos = 0;

continue;

}

free(ln.buf);

return 0;

case ROFF_APPEND:

pos = strlen(ln.buf);

continue;

Line 508 rerun:

Line 476 rerun:

case ROFF_IGN:

pos = 0;

continue;

case ROFF_ERR:

assert(MANDOCLEVEL_FATAL <= curp->file_status);

break;

case ROFF_SO:

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

Line 525 rerun:

Line 490 rerun:

if (curp->secondary)

curp->secondary->sz -= pos + 1;

mparse_readfd(curp, -1, ln.buf + of);

save_file = curp->file;

if (MANDOCLEVEL_FATAL <= curp->file_status) {

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;

Line 538 rerun:

Line 514 rerun:

break;

}

if (curp->man->macroset == MACROSET_NONE)

* 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))

choose_parser(curp);

Line 565 rerun:

Line 526 rerun:

* Do the same for ROFF_EQN.

if (rr == ROFF_TBL) {

if (rr == ROFF_TBL)

while ((span = roff_span(curp->roff)) != NULL)

if (curp->man == NULL)

roff_addtbl(curp->man, span);

mdoc_addspan(curp->mdoc, span);

else if (rr == ROFF_EQN)

else

roff_addeqn(curp->man, roff_eqn(curp->roff));

man_addspan(curp->man, span);

else if ((curp->man->macroset == MACROSET_MDOC ?

} else if (rr == ROFF_EQN) {

mdoc_parseln(curp->man, curp->line, ln.buf, of) :

if (curp->man == NULL)

mdoc_addeqn(curp->mdoc, roff_eqn(curp->roff));

else

man_addeqn(curp->man, roff_eqn(curp->roff));

} else if ((curp->man == NULL ?

mdoc_parseln(curp->mdoc, curp->line, ln.buf, of) :

man_parseln(curp->man, curp->line, ln.buf, of)) == 2)

break;

Line 592 rerun:

Line 547 rerun:

}

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

if (fstat(fd, &st) == -1)

struct stat st;

err((int)MANDOCLEVEL_SYSERR, "%s", file);

if (-1 == fstat(fd, &st)) {

perror(file);

exit((int)MANDOCLEVEL_SYSERR);

}

* If we're a regular file, try just reading in the whole entry

Line 615 read_whole_file(struct mparse *curp, const char *file,

Line 569 read_whole_file(struct mparse *curp, const char *file,

* 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 >= (1U << 31)) {

if (st.st_size > 0x7fffffff) {

curp->file_status = MANDOCLEVEL_FATAL;

mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL);

if (curp->mmsg)

return 0;

(*curp->mmsg)(MANDOCERR_TOOLARGE,

curp->file_status, file, 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

* go the old way and just read things in bit by bit.

Line 643 read_whole_file(struct mparse *curp, const char *file,

Line 599 read_whole_file(struct mparse *curp, const char *file,

for (;;) {

if (off == fb->sz) {

if (fb->sz == (1U << 31)) {

curp->file_status = MANDOCLEVEL_FATAL;

mandoc_msg(MANDOCERR_TOOLARGE, curp,

if (curp->mmsg)

0, 0, NULL);

(*curp->mmsg)(MANDOCERR_TOOLARGE,

curp->file_status,

file, 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);

return 1;

}

if (ssz == -1) {

if (ssz == -1)

perror(file);

err((int)MANDOCLEVEL_SYSERR, "%s", file);

exit((int)MANDOCLEVEL_SYSERR);

}

off += (size_t)ssz;

}

free(fb->buf);

fb->buf = NULL;

return(0);

return 0;

}

static void

mparse_end(struct mparse *curp)

{

if (curp->man->macroset == MACROSET_NONE)

if (MANDOCLEVEL_FATAL <= curp->file_status)

curp->man->macroset = MACROSET_MAN;

return;

if (curp->man->macroset == MACROSET_MDOC)

mdoc_endparse(curp->man);

if (curp->mdoc == NULL &&

else

curp->man == NULL &&

man_endparse(curp->man);

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->defos,

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;

}

roff_endparse(curp->roff);

}

Line 736 mparse_parse_buffer(struct mparse *curp, struct buf bl

Line 667 mparse_parse_buffer(struct mparse *curp, struct buf bl

mparse_buf_r(curp, blk, offset, 1);

if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)

if (--recursion_depth == 0)

mparse_end(curp);

curp->primary = svprimary;

Line 753 mparse_readmem(struct mparse *curp, void *buf, size_t

Line 684 mparse_readmem(struct mparse *curp, void *buf, size_t

blk.sz = len;

mparse_parse_buffer(curp, blk, file);

return(curp->file_status);

return curp->file_status;

}

* If a file descriptor is given, use it and assume it points

* to the named file. Otherwise, open the named file.

* Read the whole file into memory and call the parsers.

* Called recursively when an .so request is encountered.

Line 768 mparse_readfd(struct mparse *curp, int fd, const char

Line 697 mparse_readfd(struct mparse *curp, int fd, const char

struct buf blk;

int with_mmap;

int save_filenc;

pid_t save_child;

save_child = curp->child;

if (fd != -1)

curp->child = 0;

else if (mparse_open(curp, &fd, file) >= MANDOCLEVEL_SYSERR)

goto out;

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);

}

return curp->file_status;

if (fd != STDIN_FILENO && close(fd) == -1)

perror(file);

mparse_wait(curp);

out:

curp->child = save_child;

return(curp->file_status);

}

enum mandoclevel

int

mparse_open(struct mparse *curp, int *fd, const char *file)

mparse_open(struct mparse *curp, const char *file)

{

int pfd[2];

int save_errno;

char *cp;

enum mandocerr err;

int fd;

pfd[1] = -1;

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);

file = cp;

fd = open(cp, O_RDONLY);

} else

free(cp);

cp = NULL;

if (fd != -1) {

curp->gzip = 1;

/* Before forking, make sure the file can be read. */

return fd;

save_errno = errno;

if (access(file, R_OK) == -1) {

if (cp != NULL)

errno = save_errno;

err = MANDOCERR_SYSOPEN;

goto out;

}

/* 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);

}

execlp("gunzip", "gunzip", "-c", file, NULL);

perror("exec");

exit((int)MANDOCLEVEL_SYSERR);

default:

close(pfd[1]);

*fd = pfd[0];

return(MANDOCLEVEL_OK);

}

out:

/* Neither worked, give up. */

free(cp);

*fd = -1;

curp->child = 0;

curp->file_status = MANDOCLEVEL_SYSERR;

if (curp->mmsg)

(*curp->mmsg)(err, curp->file_status, curp->file,

0, 0, strerror(errno));

if (pfd[1] != -1)

exit(1);

return(curp->file_status);

}

enum mandoclevel

mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno));

mparse_wait(struct mparse *curp)

return -1;

{

int status;

if (curp->child == 0)

return(MANDOCLEVEL_OK);

if (waitpid(curp->child, &status, 0) == -1) {

perror("wait");

exit((int)MANDOCLEVEL_SYSERR);

}

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);

}

struct mparse *

mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg,

const struct mchars *mchars, const char *defos)

const char *defos)

{

struct mparse *curp;

assert(wlevel <= MANDOCLEVEL_FATAL);

curp = mandoc_calloc(1, sizeof(struct mparse));

curp->options = options;

Line 916 mparse_alloc(int options, enum mandoclevel wlevel, man

Line 761 mparse_alloc(int options, enum mandoclevel wlevel, man

curp->mmsg = mmsg;

curp->defos = defos;

curp->mchars = mchars;

curp->roff = roff_alloc(curp, options);

curp->roff = roff_alloc(curp, curp->mchars, options);

curp->man = roff_man_alloc( curp->roff, curp, curp->defos,

if (curp->options & MPARSE_MDOC)

curp->options & MPARSE_QUICK ? 1 : 0);

curp->pmdoc = mdoc_alloc(

if (curp->options & MPARSE_MDOC) {

curp->roff, curp, curp->defos,

curp->man->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->pman = man_alloc(

} else if (curp->options & MPARSE_MAN) {

curp->roff, curp, curp->defos,

curp->man->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->first->tok = TOKEN_NONE;

return curp;

}

void

mparse_reset(struct mparse *curp)

{

roff_reset(curp->roff);

roff_man_reset(curp->man);

if (curp->mdoc)

free(curp->sodest);

mdoc_reset(curp->mdoc);

curp->sodest = NULL;

if (curp->man)

man_reset(curp->man);

if (curp->secondary)

curp->secondary->sz = 0;

curp->file_status = MANDOCLEVEL_OK;

curp->mdoc = NULL;

curp->gzip = 0;

curp->man = NULL;

free(curp->sodest);

curp->sodest = NULL;

}

void

mparse_free(struct mparse *curp)

{

if (curp->pmdoc)

roffhash_free(curp->man->mdocmac);

mdoc_free(curp->pmdoc);

roffhash_free(curp->man->manmac);

if (curp->pman)

roff_man_free(curp->man);

man_free(curp->pman);

roff_free(curp->roff);

if (curp->roff)

roff_free(curp->roff);

if (curp->secondary)

free(curp->secondary->buf);

Line 970 mparse_free(struct mparse *curp)

Line 810 mparse_free(struct mparse *curp)

}

void

mparse_result(struct mparse *curp,

mparse_result(struct mparse *curp, struct roff_man **man,

struct mdoc **mdoc, struct man **man, char **sodest)

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, ...)

{

Line 1005 mandoc_msg(enum mandocerr er, struct mparse *m,

Line 849 mandoc_msg(enum mandocerr er, struct mparse *m,

{

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)

Line 1023 const char *

Line 867 const char *

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

Line 1045 mparse_getkeep(const struct mparse *p)

Line 889 mparse_getkeep(const struct mparse *p)

{

assert(p->secondary);

return(p->secondary->sz ? p->secondary->buf : NULL);

return p->secondary->sz ? p->secondary->buf : NULL;

}

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