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dnssd backend: don't crash if avahi gives a callback with no TXT record (bug #927040).

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This commit is contained in:
Tim Waugh 2013-04-23 17:03:35 +01:00
parent d47e634478
commit 131a54ac1c
2 changed files with 19 additions and 13 deletions
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26
cups-avahi-2-backend.patch
View File

@ -1,6 +1,6 @@
diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
--- cups-1.5.3/backend/dnssd.c.avahi-2-backend 2012-05-15 16:53:18.164774446 +0200
+++ cups-1.5.3/backend/dnssd.c 2012-05-15 17:09:07.684155704 +0200
diff -up cups-1.5.4/backend/dnssd.c.avahi-2-backend cups-1.5.4/backend/dnssd.c
--- cups-1.5.4/backend/dnssd.c.avahi-2-backend 2013-04-23 17:01:44.732854106 +0100
+++ cups-1.5.4/backend/dnssd.c 2013-04-23 17:01:53.671894092 +0100
@@ -15,14 +15,21 @@
*
* Contents:
@ -523,7 +523,7 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, "
"interfaceIndex=%d, errorCode=%d, fullName=\"%s\", "
@@ -719,94 +986,233 @@ query_callback(
@@ -719,94 +986,235 @@ query_callback(
if ((ptr = strstr(name, "._")) != NULL)
*ptr = '\0';
@ -592,7 +592,7 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
+{
+ AvahiClient *client;
+ cups_device_t key,
+ *device;
+ *device = NULL;
+ char uqname[1024],
+ *ptr;
+ cups_txt_records_t txtr;
@ -623,11 +623,13 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
+ key.type = device_type (type);
+
+ /*
+ * Find the device and the the TXT information.
+ * Find the device and the TXT information.
+ */
+
+ txtr.txt = txt;
+ device = find_device ((cups_array_t *) context, &txtr, &key);
+ if (txt != NULL)
+ device = find_device ((cups_array_t *) context, &txtr, &key);
+
+ if (device)
+ {
+ /*
@ -819,7 +821,7 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
{
/*
* Add USB device ID information...
@@ -861,6 +1267,10 @@ query_callback(
@@ -861,6 +1269,10 @@ query_callback(
if (device->type == CUPS_DEVICE_PRINTER)
device->sent = 1;
}
@ -830,7 +832,7 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
}
if (device->device_id)
@@ -917,11 +1327,9 @@ query_callback(
@@ -917,11 +1329,9 @@ query_callback(
}
}
@ -843,9 +845,9 @@ diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c
/*
* 'sigterm_handler()' - Handle termination signals...
*/
diff -up cups-1.5.3/cups/http-support.c.avahi-2-backend cups-1.5.3/cups/http-support.c
--- cups-1.5.3/cups/http-support.c.avahi-2-backend 2012-02-15 02:06:12.000000000 +0100
+++ cups-1.5.3/cups/http-support.c 2012-05-15 17:04:51.045944634 +0200
diff -up cups-1.5.4/cups/http-support.c.avahi-2-backend cups-1.5.4/cups/http-support.c
--- cups-1.5.4/cups/http-support.c.avahi-2-backend 2012-02-15 01:06:12.000000000 +0000
+++ cups-1.5.4/cups/http-support.c 2013-04-23 17:01:44.755854208 +0100
@@ -43,6 +43,10 @@
* http_copy_decode() - Copy and decode a URI.
* http_copy_encode() - Copy and encode a URI.

6
cups.spec
View File

@ -12,7 +12,7 @@
Summary: Common Unix Printing System
Name: cups
Version: 1.5.4
Release: 26%{?dist}
Release: 27%{?dist}
License: GPLv2
Group: System Environment/Daemons
Source: http://ftp.easysw.com/pub/cups/%{version}/cups-%{version}-source.tar.bz2
@ -763,6 +763,10 @@ rm -f %{cups_serverbin}/backend/smb
%{_mandir}/man5/ipptoolfile.5.gz
%changelog
* Tue Apr 23 2013 Tim Waugh <twaugh@redhat.com> 1:1.5.4-27
- dnssd backend: don't crash if avahi gives a callback with no TXT
record (bug #927040).
* Tue Mar 5 2013 Tim Waugh <twaugh@redhat.com> 1:1.5.4-26
- Documentation fixes from STR #4223 (bug #915981).