640f10f730
ok OBS-URL: https://build.opensuse.org/request/show/61636 OBS-URL: https://build.opensuse.org/package/show/GNOME:Factory/avahi?expand=0&rev=53
61 lines
1.7 KiB
Diff
61 lines
1.7 KiB
Diff
commit 10e10a37d13c6c9b8d58a509460ceeaeb59023f0
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Author: Vincent Untz <vuntz@opensuse.org>
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Date: Thu Feb 17 15:36:37 2011 +0100
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socket: Still read corrupt packets from the sockets
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Else, we end up with an infinite loop with 100% CPU.
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http://www.avahi.org/ticket/325
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diff --git a/avahi-core/socket.c b/avahi-core/socket.c
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index be62105..e4438eb 100644
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--- a/avahi-core/socket.c
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+++ b/avahi-core/socket.c
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@@ -653,10 +653,6 @@ AvahiDnsPacket *avahi_recv_dns_packet_ipv4(
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goto fail;
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}
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- /* For corrupt packets FIONREAD returns zero size (See rhbz #607297) */
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- if (!ms)
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- goto fail;
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-
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p = avahi_dns_packet_new(ms + AVAHI_DNS_PACKET_EXTRA_SIZE);
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io.iov_base = AVAHI_DNS_PACKET_DATA(p);
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@@ -683,6 +679,11 @@ AvahiDnsPacket *avahi_recv_dns_packet_ipv4(
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goto fail;
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}
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+ /* For corrupt packets FIONREAD returns zero size (See rhbz #607297). So
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+ * fail after having read them. */
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+ if (!ms)
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+ goto fail;
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+
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if (sa.sin_addr.s_addr == INADDR_ANY) {
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/* Linux 2.4 behaves very strangely sometimes! */
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goto fail;
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@@ -810,10 +811,6 @@ AvahiDnsPacket *avahi_recv_dns_packet_ipv6(
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goto fail;
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}
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- /* For corrupt packets FIONREAD returns zero size (See rhbz #607297) */
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- if (!ms)
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- goto fail;
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-
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p = avahi_dns_packet_new(ms + AVAHI_DNS_PACKET_EXTRA_SIZE);
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io.iov_base = AVAHI_DNS_PACKET_DATA(p);
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@@ -841,6 +838,11 @@ AvahiDnsPacket *avahi_recv_dns_packet_ipv6(
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goto fail;
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}
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+ /* For corrupt packets FIONREAD returns zero size (See rhbz #607297). So
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+ * fail after having read them. */
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+ if (!ms)
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+ goto fail;
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+
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assert(!(msg.msg_flags & MSG_CTRUNC));
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assert(!(msg.msg_flags & MSG_TRUNC));
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