libs/avahi/patches/200-Fix-NULL-pointer-crashes-from-175.patch

   1 From 9d31939e55280a733d930b15ac9e4dda4497680c Mon Sep 17 00:00:00 2001
   2 From: Tommi Rantala <tommi.t.rantala@nokia.com>
   3 Date: Mon, 8 Feb 2021 11:04:43 +0200
   4 Subject: [PATCH] Fix NULL pointer crashes from #175
   5
   6 avahi-daemon is crashing when running "ping .local".
   7 The crash is due to failing assertion from NULL pointer.
   8 Add missing NULL pointer checks to fix it.
   9
  10 Introduced in #175 - merge commit 8f75a045709a780c8cf92a6a21e9d35b593bdecd
  11
  12 [Retrieved from:
  13 https://github.com/lathiat/avahi/commit/9d31939e55280a733d930b15ac9e4dda4497680c]
  14 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
  15 ---
  16  avahi-core/browse-dns-server.c   | 5 ++++-
  17  avahi-core/browse-domain.c       | 5 ++++-
  18  avahi-core/browse-service-type.c | 3 +++
  19  avahi-core/browse-service.c      | 3 +++
  20  avahi-core/browse.c              | 3 +++
  21  avahi-core/resolve-address.c     | 5 ++++-
  22  avahi-core/resolve-host-name.c   | 5 ++++-
  23  avahi-core/resolve-service.c     | 5 ++++-
  24  8 files changed, 29 insertions(+), 5 deletions(-)
  25
  26 --- a/avahi-core/browse-dns-server.c
  27 +++ b/avahi-core/browse-dns-server.c
  28 @@ -343,7 +343,10 @@ AvahiSDNSServerBrowser *avahi_s_dns_serv
  29          AvahiSDNSServerBrowser* b;
  30
  31          b = avahi_s_dns_server_browser_prepare(server, interface, protocol, domain, type, aprotocol, flags, callback, userdata);
  32 +        if (!b)
  33 +            return NULL;
  34 +
  35          avahi_s_dns_server_browser_start(b);
  36
  37          return b;
  38 -}
  39 \ No newline at end of file
  40 +}
  41 --- a/avahi-core/browse-domain.c
  42 +++ b/avahi-core/browse-domain.c
  43 @@ -253,7 +253,10 @@ AvahiSDomainBrowser *avahi_s_domain_brow
  44          AvahiSDomainBrowser *b;
  45
  46          b = avahi_s_domain_browser_prepare(server, interface, protocol, domain, type, flags, callback, userdata);
  47 +        if (!b)
  48 +            return NULL;
  49 +
  50          avahi_s_domain_browser_start(b);
  51
  52          return b;
  53 -}
  54 \ No newline at end of file
  55 +}
  56 --- a/avahi-core/browse-service-type.c
  57 +++ b/avahi-core/browse-service-type.c
  58 @@ -171,6 +171,9 @@ AvahiSServiceTypeBrowser *avahi_s_servic
  59          AvahiSServiceTypeBrowser *b;
  60
  61          b = avahi_s_service_type_browser_prepare(server, interface, protocol, domain, flags, callback, userdata);
  62 +        if (!b)
  63 +            return NULL;
  64 +
  65          avahi_s_service_type_browser_start(b);
  66
  67          return b;
  68 --- a/avahi-core/browse-service.c
  69 +++ b/avahi-core/browse-service.c
  70 @@ -184,6 +184,9 @@ AvahiSServiceBrowser *avahi_s_service_br
  71          AvahiSServiceBrowser *b;
  72
  73          b = avahi_s_service_browser_prepare(server, interface, protocol, service_type, domain, flags, callback, userdata);
  74 +        if (!b)
  75 +            return NULL;
  76 +
  77          avahi_s_service_browser_start(b);
  78
  79          return b;
  80 --- a/avahi-core/browse.c
  81 +++ b/avahi-core/browse.c
  82 @@ -634,6 +634,9 @@ AvahiSRecordBrowser *avahi_s_record_brow
  83          AvahiSRecordBrowser *b;
  84
  85          b = avahi_s_record_browser_prepare(server, interface, protocol, key, flags, callback, userdata);
  86 +        if (!b)
  87 +            return NULL;
  88 +
  89          avahi_s_record_browser_start_query(b);
  90
  91          return b;
  92 --- a/avahi-core/resolve-address.c
  93 +++ b/avahi-core/resolve-address.c
  94 @@ -286,7 +286,10 @@ AvahiSAddressResolver *avahi_s_address_r
  95          AvahiSAddressResolver *b;
  96
  97          b = avahi_s_address_resolver_prepare(server, interface, protocol, address, flags, callback, userdata);
  98 +        if (!b)
  99 +            return NULL;
 100 +
 101          avahi_s_address_resolver_start(b);
 102
 103          return b;
 104 -}
 105 \ No newline at end of file
 106 +}
 107 --- a/avahi-core/resolve-host-name.c
 108 +++ b/avahi-core/resolve-host-name.c
 109 @@ -318,7 +318,10 @@ AvahiSHostNameResolver *avahi_s_host_nam
 110          AvahiSHostNameResolver *b;
 111
 112          b = avahi_s_host_name_resolver_prepare(server, interface, protocol, host_name, aprotocol, flags, callback, userdata);
 113 +        if (!b)
 114 +            return NULL;
 115 +
 116          avahi_s_host_name_resolver_start(b);
 117
 118          return b;
 119 -}
 120 \ No newline at end of file
 121 +}
 122 --- a/avahi-core/resolve-service.c
 123 +++ b/avahi-core/resolve-service.c
 124 @@ -519,7 +519,10 @@ AvahiSServiceResolver *avahi_s_service_r
 125          AvahiSServiceResolver *b;
 126
 127          b = avahi_s_service_resolver_prepare(server, interface, protocol, name, type, domain, aprotocol, flags, callback, userdata);
 128 +        if (!b)
 129 +            return NULL;
 130 +
 131          avahi_s_service_resolver_start(b);
 132
 133          return b;
 134 -}
 135 \ No newline at end of file
 136 +}