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From: Igor Shevchenko <igor@carcass.ath.cx>
To: pgsql-interfaces@postgresql.org
Subject: PQescapeString handling of \0
Date: Mon, 29 Sep 2003 19:49:26 +0300
Message-ID: <200309291949.26188.igor@carcass.ath.cx> (raw)

Hi.

Here's a patch which makes PQescapeString stop escaping when \0 is seen.
Currently. if somebody passes a string with embedded \0 (for example, perl 
allows \0s in it's scalars and DBD::Pg does no checks), PQescapeString will 
return an invalid (bigger) length for \0-terminated string.

-- 
Best regards,
Igor Shevchenko

Attachments:

  [text/x-diff] fe-exec_pqescapestring.diff (296B, ../200309291949.26188.igor@carcass.ath.cx/2-fe-exec_pqescapestring.diff)
  download | inline diff:
--- postgresql-7.4beta3/src/interfaces/libpq/fe-exec.c	2003-09-05 05:08:36.000000000 +0300
+++ psql/src/interfaces/libpq/fe-exec.c	2003-09-29 19:40:06.481977880 +0300
@@ -2179,2 +2179,6 @@ PQescapeString(char *to, const char *fro
 				break;
+				
+			case 0:
+				remaining = 0;
+				continue;
 

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