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From: Wolfgang Bumiller <w.bumiller@proxmox.com>
To: netdev@vger.kernel.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH iproute2] tc/lexer: let quotes actually start strings
Date: Mon, 22 Jan 2018 11:53:46 +0100	[thread overview]
Message-ID: <20180122105346.15367-1-w.bumiller@proxmox.com> (raw)

The lexer will go with the longest match, so previously
the starting double quotes of a string would be swallowed by
the [^ \t\r\n()]+ pattern leaving the user no way to
actually use strings with escape sequences.
Fix this by not allowing this case to start with double
quotes.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
(Resent as separate thread)
 tc/emp_ematch.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tc/emp_ematch.l b/tc/emp_ematch.l
index dc106759..d7a99304 100644
--- a/tc/emp_ematch.l
+++ b/tc/emp_ematch.l
@@ -137,7 +137,7 @@
 ")"					{
 						return yylval.i = *yytext;
 					}
-[^ \t\r\n()]+				{
+[^" \t\r\n()][^ \t\r\n()]*		{
 						yylval.b = bstr_alloc(yytext);
 						if (yylval.b == NULL)
 							return ERROR;
-- 
2.11.0

             reply	other threads:[~2018-01-22 10:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-22 10:53 Wolfgang Bumiller [this message]
2018-01-22 17:09 ` [PATCH iproute2] tc/lexer: let quotes actually start strings Stephen Hemminger
2018-01-24 16:51 ` Stephen Hemminger
  -- strict thread matches above, loose matches on Subject: below --
2018-01-18 10:32 [PATCH net+iproute2 0/2] nbyte, cmp and text filter fixups Wolfgang Bumiller
2018-01-18 10:32 ` [PATCH iproute2] tc/lexer: let quotes actually start strings Wolfgang Bumiller

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