version 1.139, 2015/04/19 14:25:41 |
version 1.162, 2017/03/06 17:26:05 |
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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) 2010-2017 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> |
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#if HAVE_ERR |
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#include <err.h> |
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#endif |
#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" |
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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 */ |
char *sodest; /* filename pointed to by .so */ |
const char *file; /* filename of current input file */ |
const char *file; /* filename of current input file */ |
struct buf *primary; /* buffer currently being parsed */ |
struct buf *primary; /* buffer currently being parsed */ |
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enum mandoclevel file_status; /* status of current parse */ |
enum mandoclevel file_status; /* status of current parse */ |
enum mandoclevel wlevel; /* ignore messages below this */ |
enum mandoclevel wlevel; /* ignore messages below this */ |
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 *); |
Line 109 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 107 static const char * const mandocerrs[MANDOCERR_MAX] = |
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"no document body", |
"no document body", |
"content before first section header", |
"content before first section header", |
"first section is not \"NAME\"", |
"first section is not \"NAME\"", |
"NAME section without name", |
"NAME section without Nm before Nd", |
"NAME section without description", |
"NAME section without description", |
"description not at the end of NAME", |
"description not at the end of NAME", |
"bad NAME section content", |
"bad NAME section content", |
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"missing comma before name", |
"missing description line, using \"\"", |
"missing description line, using \"\"", |
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"description line outside NAME section", |
"sections out of conventional order", |
"sections out of conventional order", |
"duplicate section title", |
"duplicate section title", |
"unexpected section", |
"unexpected section", |
Line 130 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 130 static const char * const mandocerrs[MANDOCERR_MAX] = |
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"blocks badly nested", |
"blocks badly nested", |
"nested displays are not portable", |
"nested displays are not portable", |
"moving content out of list", |
"moving content out of list", |
".Vt block has child macro", |
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"fill mode already enabled, skipping", |
"fill mode already enabled, skipping", |
"fill mode already disabled, skipping", |
"fill mode already disabled, skipping", |
"line scope broken", |
"line scope broken", |
Line 143 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 142 static const char * const mandocerrs[MANDOCERR_MAX] = |
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"empty argument, using 0n", |
"empty argument, using 0n", |
"missing display type, using -ragged", |
"missing display type, using -ragged", |
"list type is not the first argument", |
"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 utility name, using \"\"", |
"missing function name, using \"\"", |
"missing function name, using \"\"", |
"empty head in list item", |
"empty head in list item", |
Line 152 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 151 static const char * const mandocerrs[MANDOCERR_MAX] = |
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"unknown font type, using \\fR", |
"unknown font type, using \\fR", |
"nothing follows prefix", |
"nothing follows prefix", |
"empty reference block", |
"empty reference block", |
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"missing section argument", |
"missing -std argument, adding it", |
"missing -std argument, adding it", |
"missing option string, using \"\"", |
"missing option string, using \"\"", |
"missing resource identifier, using \"\"", |
"missing resource identifier, using \"\"", |
Line 177 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 177 static const char * const mandocerrs[MANDOCERR_MAX] = |
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"blank line in fill mode, using .sp", |
"blank line in fill mode, using .sp", |
"tab in filled text", |
"tab in filled text", |
"whitespace at end of input line", |
"whitespace at end of input line", |
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"new sentence, new line", |
"bad comment style", |
"bad comment style", |
"invalid escape sequence", |
"invalid escape sequence", |
"undefined string, using \"\"", |
"undefined string, using \"\"", |
Line 217 static const char * const mandocerrs[MANDOCERR_MAX] = |
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Line 218 static const char * const mandocerrs[MANDOCERR_MAX] = |
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/* related to request and macro arguments */ |
/* related to request and macro arguments */ |
"escaped character not allowed in a name", |
"escaped character not allowed in a name", |
"NOT IMPLEMENTED: Bd -file", |
"NOT IMPLEMENTED: Bd -file", |
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"skipping display without arguments", |
"missing list type, using -item", |
"missing list type, using -item", |
"missing manual name, using \"\"", |
"missing manual name, using \"\"", |
"uname(3) system call failed, using UNKNOWN", |
"uname(3) system call failed, using UNKNOWN", |
Line 290 choose_parser(struct mparse *curp) |
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Line 292 choose_parser(struct mparse *curp) |
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} |
} |
} |
} |
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if (curp->man == NULL) { |
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curp->man = roff_man_alloc(curp->roff, curp, curp->defos, |
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curp->options & MPARSE_QUICK ? 1 : 0); |
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curp->man->macroset = MACROSET_MAN; |
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curp->man->first->tok = TOKEN_NONE; |
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} |
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if (format == MPARSE_MDOC) { |
if (format == MPARSE_MDOC) { |
mdoc_hash_init(); |
mdoc_hash_init(); |
curp->man->macroset = MACROSET_MDOC; |
curp->man->macroset = MACROSET_MDOC; |
Line 323 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 318 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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const char *save_file; |
const char *save_file; |
char *cp; |
char *cp; |
size_t pos; /* byte number in the ln buffer */ |
size_t pos; /* byte number in the ln buffer */ |
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size_t j; /* auxiliary byte number in the blk buffer */ |
enum rofferr rr; |
enum rofferr rr; |
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; |
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unsigned char c; |
unsigned char c; |
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memset(&ln, 0, sizeof(ln)); |
memset(&ln, 0, sizeof(ln)); |
Line 429 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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Line 424 mparse_buf_r(struct mparse *curp, struct buf blk, size |
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} |
} |
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if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) { |
if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) { |
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j = i; |
i += 2; |
i += 2; |
/* Comment, skip to end of line */ |
/* Comment, skip to end of line */ |
for (; i < blk.sz; ++i) { |
for (; i < blk.sz; ++i) { |
if ('\n' == blk.buf[i]) { |
if (blk.buf[i] != '\n') |
++i; |
continue; |
++lnn; |
if (blk.buf[i - 1] == ' ' || |
break; |
blk.buf[i - 1] == '\t') |
} |
mandoc_msg( |
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MANDOCERR_SPACE_EOL, |
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curp, curp->line, |
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pos + i-1 - j, NULL); |
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++i; |
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++lnn; |
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break; |
} |
} |
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/* Backout trailing whitespaces */ |
/* Backout trailing whitespaces */ |
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if (curp->secondary) |
if (curp->secondary) |
curp->secondary->sz -= pos + 1; |
curp->secondary->sz -= pos + 1; |
save_file = curp->file; |
save_file = curp->file; |
save_child = curp->child; |
if ((fd = mparse_open(curp, ln.buf + of)) != -1) { |
if (mparse_open(curp, &fd, ln.buf + of) == |
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MANDOCLEVEL_OK) { |
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mparse_readfd(curp, fd, ln.buf + of); |
mparse_readfd(curp, fd, ln.buf + of); |
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close(fd); |
curp->file = save_file; |
curp->file = save_file; |
} else { |
} else { |
curp->file = save_file; |
curp->file = save_file; |
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of = 0; |
of = 0; |
mparse_buf_r(curp, ln, of, 0); |
mparse_buf_r(curp, ln, of, 0); |
} |
} |
curp->child = save_child; |
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pos = 0; |
pos = 0; |
continue; |
continue; |
default: |
default: |
break; |
break; |
} |
} |
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/* |
if (curp->man->macroset == MACROSET_NONE) |
* If input parsers have not been allocated, do so now. |
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* We keep these instanced between parsers, but set them |
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* locally per parse routine since we can use different |
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* parsers with each one. |
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*/ |
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if (curp->man == NULL || |
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curp->man->macroset == MACROSET_NONE) |
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choose_parser(curp); |
choose_parser(curp); |
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/* |
/* |
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read_whole_file(struct mparse *curp, const char *file, int fd, |
read_whole_file(struct mparse *curp, const char *file, int fd, |
struct buf *fb, int *with_mmap) |
struct buf *fb, int *with_mmap) |
{ |
{ |
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struct stat st; |
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gzFile gz; |
size_t off; |
size_t off; |
ssize_t ssz; |
ssize_t ssz; |
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#if HAVE_MMAP |
if (fstat(fd, &st) == -1) |
struct stat st; |
err((int)MANDOCLEVEL_SYSERR, "%s", file); |
if (-1 == fstat(fd, &st)) { |
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perror(file); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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/* |
/* |
* If we're a regular file, try just reading in the whole entry |
* If we're a regular file, try just reading in the whole entry |
Line 628 read_whole_file(struct mparse *curp, const char *file, |
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Line 618 read_whole_file(struct mparse *curp, const char *file, |
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* concerned that this is going to tank any machines. |
* concerned that this is going to tank any machines. |
*/ |
*/ |
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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, curp, 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 |
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if (curp->gzip) { |
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if ((gz = gzdopen(fd, "rb")) == NULL) |
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err((int)MANDOCLEVEL_SYSERR, "%s", file); |
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} else |
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gz = NULL; |
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/* |
/* |
* 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 659 read_whole_file(struct mparse *curp, const char *file, |
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Line 654 read_whole_file(struct mparse *curp, const char *file, |
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} |
} |
resize_buf(fb, 65536); |
resize_buf(fb, 65536); |
} |
} |
ssz = read(fd, fb->buf + (int)off, fb->sz - off); |
ssz = curp->gzip ? |
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gzread(gz, fb->buf + (int)off, fb->sz - off) : |
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read(fd, fb->buf + (int)off, fb->sz - off); |
if (ssz == 0) { |
if (ssz == 0) { |
fb->sz = off; |
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); |
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} |
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off += (size_t)ssz; |
off += (size_t)ssz; |
} |
} |
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free(fb->buf); |
free(fb->buf); |
fb->buf = NULL; |
fb->buf = NULL; |
return(0); |
return 0; |
} |
} |
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static void |
static void |
mparse_end(struct mparse *curp) |
mparse_end(struct mparse *curp) |
{ |
{ |
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if (curp->man == NULL && curp->sodest == NULL) |
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curp->man = roff_man_alloc(curp->roff, curp, curp->defos, |
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curp->options & MPARSE_QUICK ? 1 : 0); |
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if (curp->man->macroset == MACROSET_NONE) |
if (curp->man->macroset == MACROSET_NONE) |
curp->man->macroset = MACROSET_MAN; |
curp->man->macroset = MACROSET_MAN; |
if (curp->man->macroset == MACROSET_MDOC) |
if (curp->man->macroset == MACROSET_MDOC) |
Line 742 mparse_readmem(struct mparse *curp, void *buf, size_t |
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Line 733 mparse_readmem(struct mparse *curp, void *buf, size_t |
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blk.sz = len; |
blk.sz = len; |
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mparse_parse_buffer(curp, blk, file); |
mparse_parse_buffer(curp, blk, file); |
return(curp->file_status); |
return curp->file_status; |
} |
} |
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/* |
/* |
Line 762 mparse_readfd(struct mparse *curp, int fd, const char |
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Line 753 mparse_readfd(struct mparse *curp, int fd, const char |
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(MPARSE_UTF8 | MPARSE_LATIN1); |
(MPARSE_UTF8 | MPARSE_LATIN1); |
mparse_parse_buffer(curp, blk, file); |
mparse_parse_buffer(curp, blk, file); |
curp->filenc = save_filenc; |
curp->filenc = save_filenc; |
#if HAVE_MMAP |
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if (with_mmap) |
if (with_mmap) |
munmap(blk.buf, blk.sz); |
munmap(blk.buf, blk.sz); |
else |
else |
#endif |
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free(blk.buf); |
free(blk.buf); |
} |
} |
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return curp->file_status; |
if (fd != STDIN_FILENO && close(fd) == -1) |
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perror(file); |
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mparse_wait(curp); |
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return(curp->file_status); |
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} |
} |
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enum mandoclevel |
int |
mparse_open(struct mparse *curp, int *fd, const char *file) |
mparse_open(struct mparse *curp, const char *file) |
{ |
{ |
int pfd[2]; |
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int save_errno; |
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char *cp; |
char *cp; |
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int fd; |
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curp->file = file; |
curp->file = file; |
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cp = strrchr(file, '.'); |
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curp->gzip = (cp != NULL && ! strcmp(cp + 1, "gz")); |
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/* Unless zipped, try to just open the file. */ |
/* First try to use the filename as it is. */ |
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if ((cp = strrchr(file, '.')) == NULL || |
if ((fd = open(file, O_RDONLY)) != -1) |
strcmp(cp + 1, "gz")) { |
return fd; |
curp->child = 0; |
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if ((*fd = open(file, O_RDONLY)) != -1) |
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return(MANDOCLEVEL_OK); |
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/* Open failed; try to append ".gz". */ |
/* |
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* If that doesn't work and the filename doesn't |
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* already end in .gz, try appending .gz. |
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*/ |
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if ( ! curp->gzip) { |
mandoc_asprintf(&cp, "%s.gz", file); |
mandoc_asprintf(&cp, "%s.gz", file); |
file = cp; |
fd = open(cp, O_RDONLY); |
} else |
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cp = NULL; |
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/* Before forking, make sure the file can be read. */ |
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save_errno = errno; |
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if (access(file, R_OK) == -1) { |
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if (cp != NULL) |
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errno = save_errno; |
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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); |
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} |
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/* Run gunzip(1). */ |
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if (pipe(pfd) == -1) { |
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perror("pipe"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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switch (curp->child = fork()) { |
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case -1: |
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perror("fork"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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case 0: |
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close(pfd[0]); |
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if (dup2(pfd[1], STDOUT_FILENO) == -1) { |
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perror("dup"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
} |
signal(SIGPIPE, SIG_DFL); |
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execlp("gunzip", "gunzip", "-c", file, NULL); |
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perror("exec"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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default: |
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close(pfd[1]); |
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*fd = pfd[0]; |
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return(MANDOCLEVEL_OK); |
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} |
} |
} |
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enum mandoclevel |
/* Neither worked, give up. */ |
mparse_wait(struct mparse *curp) |
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{ |
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int status; |
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if (curp->child == 0) |
mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno)); |
return(MANDOCLEVEL_OK); |
return -1; |
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if (waitpid(curp->child, &status, 0) == -1) { |
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perror("wait"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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curp->child = 0; |
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if (WIFSIGNALED(status)) { |
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mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0, |
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"gunzip died from signal %d", WTERMSIG(status)); |
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return(MANDOCLEVEL_ERROR); |
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} |
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if (WEXITSTATUS(status)) { |
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mandoc_vmsg(MANDOCERR_FILE, curp, 0, 0, |
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"gunzip failed with code %d", WEXITSTATUS(status)); |
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return(MANDOCLEVEL_ERROR); |
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} |
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return(MANDOCLEVEL_OK); |
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} |
} |
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struct mparse * |
struct mparse * |
mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg, |
mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg, |
const struct mchars *mchars, const char *defos) |
const char *defos) |
{ |
{ |
struct mparse *curp; |
struct mparse *curp; |
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Line 881 mparse_alloc(int options, enum mandoclevel wlevel, man |
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Line 810 mparse_alloc(int options, enum mandoclevel wlevel, man |
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curp->mmsg = mmsg; |
curp->mmsg = mmsg; |
curp->defos = defos; |
curp->defos = defos; |
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curp->mchars = mchars; |
curp->roff = roff_alloc(curp, options); |
curp->roff = roff_alloc(curp, curp->mchars, options); |
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curp->man = roff_man_alloc( curp->roff, curp, curp->defos, |
curp->man = roff_man_alloc( curp->roff, curp, curp->defos, |
curp->options & MPARSE_QUICK ? 1 : 0); |
curp->options & MPARSE_QUICK ? 1 : 0); |
if (curp->options & MPARSE_MDOC) { |
if (curp->options & MPARSE_MDOC) { |
Line 893 mparse_alloc(int options, enum mandoclevel wlevel, man |
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Line 821 mparse_alloc(int options, enum mandoclevel wlevel, man |
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curp->man->macroset = MACROSET_MAN; |
curp->man->macroset = MACROSET_MAN; |
} |
} |
curp->man->first->tok = TOKEN_NONE; |
curp->man->first->tok = TOKEN_NONE; |
return(curp); |
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(curp->sodest); |
roff_man_reset(curp->man); |
curp->sodest = NULL; |
|
|
if (curp->secondary) |
if (curp->secondary) |
curp->secondary->sz = 0; |
curp->secondary->sz = 0; |
|
|
curp->file_status = MANDOCLEVEL_OK; |
curp->file_status = MANDOCLEVEL_OK; |
|
curp->gzip = 0; |
free(curp->sodest); |
|
curp->sodest = NULL; |
|
} |
} |
|
|
void |
void |
Line 918 mparse_free(struct mparse *curp) |
|
Line 845 mparse_free(struct mparse *curp) |
|
{ |
{ |
|
|
roff_man_free(curp->man); |
roff_man_free(curp->man); |
if (curp->roff) |
roff_free(curp->roff); |
roff_free(curp->roff); |
|
if (curp->secondary) |
if (curp->secondary) |
free(curp->secondary->buf); |
free(curp->secondary->buf); |
|
|
Line 942 mparse_result(struct mparse *curp, struct roff_man **m |
|
Line 868 mparse_result(struct mparse *curp, struct roff_man **m |
|
} |
} |
|
|
void |
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, |
mandoc_vmsg(enum mandocerr t, struct mparse *m, |
int ln, int pos, const char *fmt, ...) |
int ln, int pos, const char *fmt, ...) |
{ |
{ |
|
|
mparse_strerror(enum mandocerr er) |
mparse_strerror(enum mandocerr er) |
{ |
{ |
|
|
return(mandocerrs[er]); |
return mandocerrs[er]; |
} |
} |
|
|
const char * |
const char * |
mparse_strlevel(enum mandoclevel lvl) |
mparse_strlevel(enum mandoclevel lvl) |
{ |
{ |
return(mandoclevels[lvl]); |
return mandoclevels[lvl]; |
} |
} |
|
|
void |
void |
Line 1001 mparse_getkeep(const struct mparse *p) |
|
Line 934 mparse_getkeep(const struct mparse *p) |
|
{ |
{ |
|
|
assert(p->secondary); |
assert(p->secondary); |
return(p->secondary->sz ? p->secondary->buf : NULL); |
return p->secondary->sz ? p->secondary->buf : NULL; |
} |
} |