version 1.120, 2015/01/28 21:11:54 |
version 1.140, 2015/07/19 06:05:16 |
|
|
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
* copyright notice and this permission notice appear in all copies. |
* 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 |
* 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 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|
|
#include <sys/mman.h> |
#include <sys/mman.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
#endif |
#endif |
#include <sys/wait.h> |
|
|
|
#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
|
|
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <unistd.h> |
#include <unistd.h> |
|
#include <zlib.h> |
|
|
#include "mandoc.h" |
|
#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "libmandoc.h" |
#include "mandoc.h" |
|
#include "roff.h" |
#include "mdoc.h" |
#include "mdoc.h" |
#include "man.h" |
#include "man.h" |
|
#include "libmandoc.h" |
|
#include "roff_int.h" |
|
|
#define REPARSE_LIMIT 1000 |
#define REPARSE_LIMIT 1000 |
|
|
struct mparse { |
struct mparse { |
struct man *pman; /* persistent man parser */ |
struct roff_man *man; /* 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 *roff; /* roff parser (!NULL) */ |
const struct mchars *mchars; /* character table */ |
const struct mchars *mchars; /* character table */ |
char *sodest; /* filename pointed to by .so */ |
char *sodest; /* filename pointed to by .so */ |
|
|
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 */ |
|
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 */ |
|
}; |
}; |
|
|
static void choose_parser(struct mparse *); |
static void choose_parser(struct mparse *); |
Line 109 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
Line 108 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
"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\"", |
"bad NAME section contents", |
"NAME section without name", |
|
"NAME section without description", |
|
"description not at the end of NAME", |
|
"bad NAME section content", |
|
"missing description line, using \"\"", |
"sections out of conventional order", |
"sections out of conventional order", |
"duplicate section title", |
"duplicate section title", |
"unexpected section", |
"unexpected section", |
Line 135 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
Line 138 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
"skipping empty request", |
"skipping empty request", |
"conditional request controls empty scope", |
"conditional request controls empty scope", |
"skipping empty macro", |
"skipping empty macro", |
|
"empty block", |
"empty argument, using 0n", |
"empty argument, using 0n", |
"argument count wrong", |
|
"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 8n", |
"missing utility name, using \"\"", |
"missing utility name, using \"\"", |
|
"missing function name, using \"\"", |
"empty head in list item", |
"empty head in list item", |
"empty list item", |
"empty list item", |
"missing font type, using \\fR", |
"missing font type, using \\fR", |
"unknown font type, using \\fR", |
"unknown font type, using \\fR", |
"nothing follows prefix", |
"nothing follows prefix", |
|
"empty reference block", |
"missing -std argument, adding it", |
"missing -std argument, adding it", |
|
"missing option string, using \"\"", |
|
"missing resource identifier, using \"\"", |
"missing eqn box, using \"\"", |
"missing eqn box, using \"\"", |
|
|
/* related to bad macro arguments */ |
/* related to bad macro arguments */ |
Line 156 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
Line 163 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
"skipping duplicate display type", |
"skipping duplicate display type", |
"skipping duplicate list type", |
"skipping duplicate list type", |
"skipping -width argument", |
"skipping -width argument", |
|
"wrong number of cells", |
"unknown AT&T UNIX version", |
"unknown AT&T UNIX version", |
"comma in function argument", |
"comma in function argument", |
"parenthesis in function name", |
"parenthesis in function name", |
"invalid content in Rs block", |
"invalid content in Rs block", |
"invalid Boolean argument", |
"invalid Boolean argument", |
"unknown font, skipping request", |
"unknown font, skipping request", |
|
"odd number of characters in request", |
|
|
/* related to plain text */ |
/* related to plain text */ |
"blank line in fill mode, using .sp", |
"blank line in fill mode, using .sp", |
Line 206 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
Line 215 static const char * const mandocerrs[MANDOCERR_MAX] = |
|
|
|
/* 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", |
"argument count wrong", |
|
"NOT IMPLEMENTED: Bd -file", |
"NOT IMPLEMENTED: Bd -file", |
"missing list type, using -item", |
"missing list type, using -item", |
"missing manual name, using \"\"", |
"missing manual name, using \"\"", |
Line 281 choose_parser(struct mparse *curp) |
|
Line 289 choose_parser(struct mparse *curp) |
|
} |
} |
} |
} |
|
|
if (format == MPARSE_MDOC) { |
if (curp->man == NULL) { |
if (NULL == curp->pmdoc) |
curp->man = roff_man_alloc(curp->roff, curp, curp->defos, |
curp->pmdoc = mdoc_alloc( |
curp->options & MPARSE_QUICK ? 1 : 0); |
curp->roff, curp, curp->defos, |
curp->man->macroset = MACROSET_MAN; |
MPARSE_QUICK & curp->options ? 1 : 0); |
curp->man->first->tok = TOKEN_NONE; |
assert(curp->pmdoc); |
|
curp->mdoc = curp->pmdoc; |
|
return; |
|
} |
} |
|
|
/* Fall back to man(7) as a last resort. */ |
if (format == MPARSE_MDOC) { |
|
mdoc_hash_init(); |
if (NULL == curp->pman) |
curp->man->macroset = MACROSET_MDOC; |
curp->pman = man_alloc( |
curp->man->first->tok = TOKEN_NONE; |
curp->roff, curp, curp->defos, |
} else { |
MPARSE_QUICK & curp->options ? 1 : 0); |
man_hash_init(); |
assert(curp->pman); |
curp->man->macroset = MACROSET_MAN; |
curp->man = curp->pman; |
curp->man->first->tok = TOKEN_NONE; |
|
} |
} |
} |
|
|
/* |
/* |
Line 320 mparse_buf_r(struct mparse *curp, struct buf blk, size |
|
Line 326 mparse_buf_r(struct mparse *curp, struct buf blk, size |
|
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; |
|
unsigned char c; |
unsigned char c; |
|
|
memset(&ln, 0, sizeof(ln)); |
memset(&ln, 0, sizeof(ln)); |
Line 393 mparse_buf_r(struct mparse *curp, struct buf blk, size |
|
Line 398 mparse_buf_r(struct mparse *curp, struct buf blk, size |
|
MANDOCERR_CHAR_UNSUPP, |
MANDOCERR_CHAR_UNSUPP, |
curp, curp->line, pos, "0x%x", c); |
curp, curp->line, pos, "0x%x", c); |
i++; |
i++; |
ln.buf[pos++] = '?'; |
if (c != '\r') |
|
ln.buf[pos++] = '?'; |
continue; |
continue; |
} |
} |
|
|
|
|
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 (mparse_open(curp, &fd, ln.buf + of) == |
if (mparse_open(curp, &fd, ln.buf + of) == |
MANDOCLEVEL_OK) { |
MANDOCLEVEL_OK) { |
mparse_readfd(curp, fd, ln.buf + of); |
mparse_readfd(curp, fd, 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; |
pos = 0; |
continue; |
continue; |
default: |
default: |
|
|
* parsers with each one. |
* parsers with each one. |
*/ |
*/ |
|
|
if ( ! (curp->man || curp->mdoc)) |
if (curp->man == NULL || |
|
curp->man->macroset == MACROSET_NONE) |
choose_parser(curp); |
choose_parser(curp); |
|
|
/* |
/* |
|
|
* Do the same for ROFF_EQN. |
* Do the same for ROFF_EQN. |
*/ |
*/ |
|
|
if (rr == ROFF_TBL) { |
if (rr == ROFF_TBL) |
while ((span = roff_span(curp->roff)) != NULL) |
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) |
man_parseln(curp->man, curp->line, ln.buf, of)) == 2) |
break; |
break; |
|
|
|
|
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) |
{ |
{ |
|
gzFile gz; |
size_t off; |
size_t off; |
ssize_t ssz; |
ssize_t ssz; |
|
|
Line 625 read_whole_file(struct mparse *curp, const char *file, |
|
Line 625 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 >= (1U << 31)) { |
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); |
} |
} |
Line 638 read_whole_file(struct mparse *curp, const char *file, |
|
Line 638 read_whole_file(struct mparse *curp, const char *file, |
|
} |
} |
#endif |
#endif |
|
|
|
if (curp->gzip) { |
|
if ((gz = gzdopen(fd, "rb")) == NULL) { |
|
perror(file); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
|
} 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 656 read_whole_file(struct mparse *curp, const char *file, |
|
Line 664 read_whole_file(struct mparse *curp, const char *file, |
|
} |
} |
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); |
return(1); |
|
|
mparse_end(struct mparse *curp) |
mparse_end(struct mparse *curp) |
{ |
{ |
|
|
if (curp->mdoc == NULL && |
if (curp->man == NULL && curp->sodest == NULL) |
curp->man == NULL && |
curp->man = roff_man_alloc(curp->roff, curp, curp->defos, |
curp->sodest == NULL) { |
curp->options & MPARSE_QUICK ? 1 : 0); |
if (curp->options & MPARSE_MDOC) |
if (curp->man->macroset == MACROSET_NONE) |
curp->mdoc = curp->pmdoc; |
curp->man->macroset = MACROSET_MAN; |
else { |
if (curp->man->macroset == MACROSET_MDOC) |
if (curp->pman == NULL) |
mdoc_endparse(curp->man); |
curp->pman = man_alloc( |
else |
curp->roff, curp, curp->defos, |
|
curp->options & MPARSE_QUICK ? 1 : 0); |
|
curp->man = curp->pman; |
|
} |
|
} |
|
if (curp->mdoc) |
|
mdoc_endparse(curp->mdoc); |
|
if (curp->man) |
|
man_endparse(curp->man); |
man_endparse(curp->man); |
roff_endparse(curp->roff); |
roff_endparse(curp->roff); |
} |
} |
Line 778 mparse_readfd(struct mparse *curp, int fd, const char |
|
Line 780 mparse_readfd(struct mparse *curp, int fd, const char |
|
if (fd != STDIN_FILENO && close(fd) == -1) |
if (fd != STDIN_FILENO && close(fd) == -1) |
perror(file); |
perror(file); |
|
|
mparse_wait(curp); |
|
return(curp->file_status); |
return(curp->file_status); |
} |
} |
|
|
enum mandoclevel |
enum mandoclevel |
mparse_open(struct mparse *curp, int *fd, const char *file) |
mparse_open(struct mparse *curp, int *fd, const char *file) |
{ |
{ |
int pfd[2]; |
|
int save_errno; |
|
char *cp; |
char *cp; |
|
|
curp->file = file; |
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(MANDOCLEVEL_OK); |
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(file, 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(MANDOCLEVEL_OK); |
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); |
|
} |
} |
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) |
mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno)); |
return(MANDOCLEVEL_OK); |
return(MANDOCLEVEL_ERROR); |
|
|
if (waitpid(curp->child, &status, 0) == -1) { |
|
perror("wait"); |
|
exit((int)MANDOCLEVEL_SYSERR); |
|
} |
|
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 * |
Line 886 mparse_alloc(int options, enum mandoclevel wlevel, man |
|
Line 833 mparse_alloc(int options, enum mandoclevel wlevel, man |
|
|
|
curp->mchars = mchars; |
curp->mchars = mchars; |
curp->roff = roff_alloc(curp, curp->mchars, options); |
curp->roff = roff_alloc(curp, curp->mchars, options); |
if (curp->options & MPARSE_MDOC) |
curp->man = roff_man_alloc( curp->roff, curp, curp->defos, |
curp->pmdoc = mdoc_alloc( |
curp->options & MPARSE_QUICK ? 1 : 0); |
curp->roff, curp, curp->defos, |
if (curp->options & MPARSE_MDOC) { |
curp->options & MPARSE_QUICK ? 1 : 0); |
mdoc_hash_init(); |
if (curp->options & MPARSE_MAN) |
curp->man->macroset = MACROSET_MDOC; |
curp->pman = man_alloc( |
} else if (curp->options & MPARSE_MAN) { |
curp->roff, curp, curp->defos, |
man_hash_init(); |
curp->options & MPARSE_QUICK ? 1 : 0); |
curp->man->macroset = MACROSET_MAN; |
|
} |
|
curp->man->first->tok = TOKEN_NONE; |
return(curp); |
return(curp); |
} |
} |
|
|
Line 904 mparse_reset(struct mparse *curp) |
|
Line 852 mparse_reset(struct mparse *curp) |
|
|
|
roff_reset(curp->roff); |
roff_reset(curp->roff); |
|
|
if (curp->mdoc) |
if (curp->man != NULL) |
mdoc_reset(curp->mdoc); |
roff_man_reset(curp->man); |
if (curp->man) |
|
man_reset(curp->man); |
|
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->mdoc = NULL; |
|
curp->man = NULL; |
|
|
|
free(curp->sodest); |
free(curp->sodest); |
curp->sodest = NULL; |
curp->sodest = NULL; |
|
|
mparse_free(struct mparse *curp) |
mparse_free(struct mparse *curp) |
{ |
{ |
|
|
if (curp->pmdoc) |
roff_man_free(curp->man); |
mdoc_free(curp->pmdoc); |
|
if (curp->pman) |
|
man_free(curp->pman); |
|
if (curp->roff) |
if (curp->roff) |
roff_free(curp->roff); |
roff_free(curp->roff); |
if (curp->secondary) |
if (curp->secondary) |
Line 938 mparse_free(struct mparse *curp) |
|
Line 879 mparse_free(struct mparse *curp) |
|
} |
} |
|
|
void |
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)) { |
if (sodest && NULL != (*sodest = curp->sodest)) { |
*mdoc = NULL; |
|
*man = NULL; |
*man = NULL; |
return; |
return; |
} |
} |
if (mdoc) |
|
*mdoc = curp->mdoc; |
|
if (man) |
if (man) |
*man = curp->man; |
*man = curp->man; |
} |
} |