98 lines
3.3 KiB
Diff
98 lines
3.3 KiB
Diff
From 37523b867d411c2f82d08128246be7e38bc9812c Mon Sep 17 00:00:00 2001
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From: Paul Newall <quandry@ntlworld.com>
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Date: Mon, 14 Oct 2013 22:22:53 +0100
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Subject: [PATCH] Bugfix in kodakaio.c to fix segfault when non kodak scanners
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return unexpected data via avahi auto discovery
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---
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backend/kodakaio.c | 43 ++++++++++++++++++++++++++++++----------
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doc/descriptions/kodakaio.desc | 2 +-
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3 files changed, 37 insertions(+), 12 deletions(-)
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diff --git a/backend/kodakaio.c b/backend/kodakaio.c
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index 8c4583a..b442e50 100644
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--- backend/kodakaio.c
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+++ backend/kodakaio.c
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@@ -127,7 +127,7 @@ for ubuntu 12.10
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#define KODAKAIO_VERSION 02
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#define KODAKAIO_REVISION 4
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-#define KODAKAIO_BUILD 6
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+#define KODAKAIO_BUILD 7
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/* for usb (but also used for net though it's not required). */
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#define MAX_BLOCK_SIZE 32768
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@@ -2184,6 +2184,7 @@ static void resolve_callback(
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AvahiLookupResultFlags flags,
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AVAHI_GCC_UNUSED void* userdata) {
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+ AvahiStringList *vid_pair_list = NULL, *pid_pair_list = NULL;
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char *pidkey, *pidvalue;
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char *vidkey, *vidvalue;
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size_t valuesize;
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@@ -2204,20 +2205,40 @@ static void resolve_callback(
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avahi_address_snprint(a, sizeof(a), address);
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/* Output short for Kodak ESP */
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- DBG(min(10,DBG_AUTO), "%s:%u %s ", a,port,host_name);
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- avahi_string_list_get_pair(avahi_string_list_find(txt, "vid"),
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- &vidkey, &vidvalue, &valuesize);
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- DBG(min(10,DBG_AUTO), "%s=%s ", vidkey, vidvalue);
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- avahi_string_list_get_pair(avahi_string_list_find(txt, "pid"),
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- &pidkey, &pidvalue, &valuesize);
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- DBG(min(10,DBG_AUTO), "%s=%s\n", pidkey, pidvalue);
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+ DBG(min(10,DBG_AUTO), "%s:%u %s\n", a,port,host_name);
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+ vid_pair_list = avahi_string_list_find(txt, "vid");
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+ if(vid_pair_list != NULL) {
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+ avahi_string_list_get_pair(vid_pair_list, &vidkey, &vidvalue, &valuesize);
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+ DBG(min(10,DBG_AUTO), "%s=%s ", vidkey, vidvalue);
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+ }
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+ else DBG(min(10,DBG_AUTO), "failed to find key vid\n");
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+
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+ pid_pair_list = avahi_string_list_find(txt, "pid");
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+ if(pid_pair_list != NULL) {
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+ avahi_string_list_get_pair(pid_pair_list, &pidkey, &pidvalue, &valuesize);
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+ DBG(min(10,DBG_AUTO), "%s=%s\n", pidkey, pidvalue);
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+ }
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+ else DBG(min(10,DBG_AUTO), "failed to find key pid\n");
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+
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+ if(pid_pair_list != NULL && vid_pair_list != NULL) {
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ProcessAvahiDevice(name, vidvalue, pidvalue, a);
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- avahi_free(vidkey); avahi_free(vidvalue);
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- avahi_free(pidkey); avahi_free(pidvalue);
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+ }
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+ else DBG(min(10,DBG_AUTO), "didn't call ProcessAvahiDevice\n");
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+
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+ if(vid_pair_list != NULL) {
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+ avahi_free(vidkey);
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+ avahi_free(vidvalue);
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+ DBG(min(15,DBG_AUTO), "vidkey and vidvalue freed\n");
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+ }
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+ if(pid_pair_list != NULL) {
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+ avahi_free(pidkey);
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+ avahi_free(pidvalue);
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+ DBG(min(15,DBG_AUTO), "pidkey and pidvalue freed\n");
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+ }
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}
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}
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-
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+ DBG(min(10,DBG_AUTO), "ending resolve_callback\n");
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avahi_service_resolver_free(r);
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}
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diff --git a/doc/descriptions/kodakaio.desc b/doc/descriptions/kodakaio.desc
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index 7882513..5fb18ed 100644
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--- doc/descriptions/kodakaio.desc
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+++ doc/descriptions/kodakaio.desc
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@@ -1,6 +1,6 @@
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:backend "kodakaio"
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:url "http://sourceforge.net/projects/cupsdriverkodak/"
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-:version "2.4.6"
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+:version "2.4.7"
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:manpage "sane-kodakaio"
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:comment "Backend for Kodak AiO ESP and Hero printers. Also possibly Advent AWL10"
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:devicetype :scanner
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--
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1.7.10.4
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