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Diffstat (limited to 'usr/src/cmd/mandoc/read.c')
-rw-r--r--usr/src/cmd/mandoc/read.c98
1 files changed, 59 insertions, 39 deletions
diff --git a/usr/src/cmd/mandoc/read.c b/usr/src/cmd/mandoc/read.c
index 5b14e357d2..511ba7dc46 100644
--- a/usr/src/cmd/mandoc/read.c
+++ b/usr/src/cmd/mandoc/read.c
@@ -1,7 +1,7 @@
-/* $Id: read.c,v 1.28 2012/02/16 20:51:31 joerg Exp $ */
+/* $Id: read.c,v 1.39 2013/09/16 00:25:07 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010, 2011, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -40,10 +40,6 @@
#include "man.h"
#include "main.h"
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-
#define REPARSE_LIMIT 1000
struct buf {
@@ -66,14 +62,16 @@ struct mparse {
void *arg; /* argument to mmsg */
const char *file;
struct buf *secondary;
+ char *defos; /* default operating system */
};
static void resize_buf(struct buf *, size_t);
static void mparse_buf_r(struct mparse *, struct buf, int);
-static void mparse_readfd_r(struct mparse *, int, const char *, int);
static void pset(const char *, int, struct mparse *);
static int read_whole_file(const char *, int, struct buf *, int *);
static void mparse_end(struct mparse *);
+static void mparse_parse_buffer(struct mparse *, struct buf,
+ const char *);
static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
MANDOCERR_OK,
@@ -94,6 +92,7 @@ static const char * const mandocerrs[MANDOCERR_MAX] = {
"no title in document",
"document title should be all caps",
"unknown manual section",
+ "unknown manual volume or arch",
"date missing, using today's date",
"cannot parse date, using it verbatim",
"prologue macros out of order",
@@ -105,14 +104,14 @@ static const char * const mandocerrs[MANDOCERR_MAX] = {
".so is fragile, better use ln(1)",
"NAME section must come first",
"bad NAME section contents",
- "manual name not yet set",
"sections out of conventional order",
"duplicate section name",
- "section not in conventional manual section",
+ "section header suited to sections 2, 3, and 9 only",
/* related to macros and nesting */
"skipping obsolete macro",
"skipping paragraph macro",
+ "moving paragraph macro out of list",
"skipping no-space macro",
"blocks badly nested",
"child violates parent syntax",
@@ -173,10 +172,12 @@ static const char * const mandocerrs[MANDOCERR_MAX] = {
"input stack limit exceeded, infinite loop?",
"skipping bad character",
"escaped character not allowed in a name",
+ "manual name not yet set",
"skipping text before the first section header",
"skipping unknown macro",
"NOT IMPLEMENTED, please use groff: skipping request",
"argument count wrong",
+ "skipping column outside column list",
"skipping end of block that is not open",
"missing end of block",
"scope open on exit",
@@ -184,6 +185,7 @@ static const char * const mandocerrs[MANDOCERR_MAX] = {
"macro requires line argument(s)",
"macro requires body argument(s)",
"macro requires argument(s)",
+ "request requires a numeric argument",
"missing list type",
"line argument(s) will be lost",
"body argument(s) will be lost",
@@ -247,7 +249,8 @@ pset(const char *buf, int pos, struct mparse *curp)
switch (curp->inttype) {
case (MPARSE_MDOC):
if (NULL == curp->pmdoc)
- curp->pmdoc = mdoc_alloc(curp->roff, curp);
+ curp->pmdoc = mdoc_alloc(curp->roff, curp,
+ curp->defos);
assert(curp->pmdoc);
curp->mdoc = curp->pmdoc;
return;
@@ -263,7 +266,8 @@ pset(const char *buf, int pos, struct mparse *curp)
if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
if (NULL == curp->pmdoc)
- curp->pmdoc = mdoc_alloc(curp->roff, curp);
+ curp->pmdoc = mdoc_alloc(curp->roff, curp,
+ curp->defos);
assert(curp->pmdoc);
curp->mdoc = curp->pmdoc;
return;
@@ -322,6 +326,15 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
break;
}
+ /*
+ * Make sure we have space for at least
+ * one backslash and one other character
+ * and the trailing NUL byte.
+ */
+
+ if (pos + 2 >= (int)ln.sz)
+ resize_buf(&ln, 256);
+
/*
* Warn about bogus characters. If you're using
* non-ASCII encoding, you're screwing your
@@ -338,8 +351,6 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
mandoc_msg(MANDOCERR_BADCHAR, curp,
curp->line, pos, NULL);
i++;
- if (pos >= (int)ln.sz)
- resize_buf(&ln, 256);
ln.buf[pos++] = '?';
continue;
}
@@ -347,8 +358,6 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
/* Trailing backslash = a plain char. */
if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
- if (pos >= (int)ln.sz)
- resize_buf(&ln, 256);
ln.buf[pos++] = blk.buf[i++];
continue;
}
@@ -390,10 +399,20 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
break;
}
- /* Some other escape sequence, copy & cont. */
+ /* Catch escaped bogus characters. */
- if (pos + 1 >= (int)ln.sz)
- resize_buf(&ln, 256);
+ c = (unsigned char) blk.buf[i+1];
+
+ if ( ! (isascii(c) &&
+ (isgraph(c) || isblank(c)))) {
+ mandoc_msg(MANDOCERR_BADCHAR, curp,
+ curp->line, pos, NULL);
+ i += 2;
+ ln.buf[pos++] = '?';
+ continue;
+ }
+
+ /* Some other escape sequence, copy & cont. */
ln.buf[pos++] = blk.buf[i++];
ln.buf[pos++] = blk.buf[i++];
@@ -469,7 +488,7 @@ rerun:
*/
if (curp->secondary)
curp->secondary->sz -= pos + 1;
- mparse_readfd_r(curp, -1, ln.buf + of, 1);
+ mparse_readfd(curp, -1, ln.buf + of);
if (MANDOCLEVEL_FATAL <= curp->file_status)
break;
pos = 0;
@@ -575,8 +594,7 @@ read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
}
*with_mmap = 1;
fb->sz = (size_t)st.st_size;
- fb->buf = mmap(NULL, fb->sz, PROT_READ,
- MAP_FILE|MAP_SHARED, fd, 0);
+ fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
if (fb->buf != MAP_FAILED)
return(1);
}
@@ -643,19 +661,25 @@ mparse_end(struct mparse *curp)
}
static void
-mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file,
- int re)
+mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
{
const char *svfile;
+ static int recursion_depth;
+
+ if (64 < recursion_depth) {
+ mandoc_msg(MANDOCERR_ROFFLOOP, curp, curp->line, 0, NULL);
+ return;
+ }
/* Line number is per-file. */
svfile = curp->file;
curp->file = file;
curp->line = 1;
+ recursion_depth++;
mparse_buf_r(curp, blk, 1);
- if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
+ if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)
mparse_end(curp);
curp->file = svfile;
@@ -670,12 +694,12 @@ mparse_readmem(struct mparse *curp, const void *buf, size_t len,
blk.buf = UNCONST(buf);
blk.sz = len;
- mparse_parse_buffer(curp, blk, file, 0);
+ mparse_parse_buffer(curp, blk, file);
return(curp->file_status);
}
-static void
-mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
+enum mandoclevel
+mparse_readfd(struct mparse *curp, int fd, const char *file)
{
struct buf blk;
int with_mmap;
@@ -684,7 +708,7 @@ mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
if (-1 == (fd = open(file, O_RDONLY, 0))) {
perror(file);
curp->file_status = MANDOCLEVEL_SYSERR;
- return;
+ goto out;
}
/*
* Run for each opened file; may be called more than once for
@@ -695,10 +719,10 @@ mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
curp->file_status = MANDOCLEVEL_SYSERR;
- return;
+ goto out;
}
- mparse_parse_buffer(curp, blk, file, re);
+ mparse_parse_buffer(curp, blk, file);
#ifdef HAVE_MMAP
if (with_mmap)
@@ -709,18 +733,13 @@ mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
if (STDIN_FILENO != fd && -1 == close(fd))
perror(file);
-}
-
-enum mandoclevel
-mparse_readfd(struct mparse *curp, int fd, const char *file)
-{
-
- mparse_readfd_r(curp, fd, file, 0);
+out:
return(curp->file_status);
}
struct mparse *
-mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
+mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
+ mandocmsg mmsg, void *arg, char *defos)
{
struct mparse *curp;
@@ -732,8 +751,9 @@ mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void
curp->mmsg = mmsg;
curp->arg = arg;
curp->inttype = inttype;
+ curp->defos = defos;
- curp->roff = roff_alloc(curp);
+ curp->roff = roff_alloc(inttype, curp);
return(curp);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-27 16:34:10 +0000