downgrade ".so with absolute path" from FATAL to ERROR;

allows to get rid of ROFF_ERR

4 files changed, 14 insertions, 13 deletions

diff --git a/libmandoc.h b/libmandoc.h
index e4a25ba4..a8de4500 100644
--- a/libmandoc.h
+++ b/libmandoc.h
@@ -1,4 +1,4 @@
-/*	$Id: libmandoc.h,v 1.53 2014/12/28 14:42:27 schwarze Exp $ */
+/*	$Id: libmandoc.h,v 1.54 2015/01/14 22:58:16 schwarze Exp $ */
 /*
  * Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -24,8 +24,7 @@ enum	rofferr {
 	ROFF_SO, /* include another file */
 	ROFF_IGN, /* ignore current line */
 	ROFF_TBL, /* a table row was successfully parsed */
-	ROFF_EQN, /* an equation was successfully parsed */
-	ROFF_ERR /* badness: puke and stop */
+	ROFF_EQN /* an equation was successfully parsed */
 };
 
 struct	buf {
diff --git a/mandoc.h b/mandoc.h
index 74a4fb8a..b7db2272 100644
--- a/mandoc.h
+++ b/mandoc.h
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.h,v 1.179 2015/01/14 22:02:50 schwarze Exp $ */
+/*	$Id: mandoc.h,v 1.180 2015/01/14 22:58:16 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -166,6 +166,7 @@ enum	mandocerr {
 	MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */
 	MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */
 	MANDOCERR_IT_NONUM, /* skipping request without numeric argument */
+	MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
 	MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */
 	MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */
 	MANDOCERR_DIVZERO, /* divide by zero */
@@ -173,7 +174,6 @@ enum	mandocerr {
 	MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
 
 	MANDOCERR_TOOLARGE, /* input too large */
-	MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
 	MANDOCERR_SO_FAIL, /* .so request failed */
 
 	MANDOCERR_MAX
diff --git a/read.c b/read.c
index 8bf74c48..821ca89e 100644
--- a/read.c
+++ b/read.c
@@ -1,4 +1,4 @@
-/*	$Id: read.c,v 1.108 2015/01/14 22:02:50 schwarze Exp $ */
+/*	$Id: read.c,v 1.109 2015/01/14 22:58:16 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -210,6 +210,7 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = {
 	"uname(3) system call failed, using UNKNOWN",
 	"unknown standard specifier",
 	"skipping request without numeric argument",
+	"NOT IMPLEMENTED: .so with absolute path or \"..\"",
 	"skipping all arguments",
 	"skipping excess arguments",
 	"divide by zero",
@@ -217,7 +218,6 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = {
 	"generic fatal error",
 
 	"input too large",
-	"NOT IMPLEMENTED: .so with absolute path or \"..\"",
 	".so request failed",
 };
 
@@ -504,9 +504,6 @@ 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')) {
diff --git a/roff.c b/roff.c
index ab1cbfea..8721a680 100644
--- a/roff.c
+++ b/roff.c
@@ -1,4 +1,4 @@
-/*	$Id: roff.c,v 1.248 2015/01/07 12:19:46 schwarze Exp $ */
+/*	$Id: roff.c,v 1.249 2015/01/14 22:58:16 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011, 2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -2103,7 +2103,7 @@ roff_tr(ROFF_ARGS)
 static enum rofferr
 roff_so(ROFF_ARGS)
 {
-	char *name;
+	char *name, *cp;
 
 	name = buf->buf + pos;
 	mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name);
@@ -2118,7 +2118,12 @@ roff_so(ROFF_ARGS)
 	if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) {
 		mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos,
 		    ".so %s", name);
-		return(ROFF_ERR);
+		buf->sz = mandoc_asprintf(&cp,
+		    ".sp\nSee the file %s.\n.sp", name) + 1;
+		free(buf->buf);
+		buf->buf = cp;
+		*offs = 0;
+		return(ROFF_REPARSE);
 	}
 
 	*offs = pos;