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Re: [bug-gv] Fwd: [Bug 1071238] New: [abrt] gv: zoom_createZoom(): gv ki

From: Markus Steinborn
Subject: Re: [bug-gv] Fwd: [Bug 1071238] New: [abrt] gv: zoom_createZoom(): gv killed by SIGSEGV
Date: Mon, 03 Mar 2014 16:30:55 +0100
User-agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Firefox/24.0 SeaMonkey/2.21

Markus Steinborn wrote:
Interesting: On Fedora 20 with redhat's builds of Xaw3d and gv, I am getting this crash, too. On CentOS 5 with my build of Xaw3d and gv, I don't. The code crashing on Fedora 20 simply is not executed with the above sequence of operations.
Finally, I got it. Observe that the resource (put it e. . in ~/.gv)


prevents GNU gv from crashing by aborting the zoom call before the crash. Removing the check for empty gs options finally fixes the bug.

commit ca3688ebdb5b3bee7126cf9636cdfc65f4684261
Author: Markus Steinborn <address@hidden>
Date:   Mon Mar 3 16:25:53 2014 +0100

    Fix crash in zoom.c

diff --git a/gv/src/zoom.c b/gv/src/zoom.c
index ccd964e..6c31645 100644
--- a/gv/src/zoom.c
+++ b/gv/src/zoom.c
@@ -104,7 +104,7 @@ zoom_createZoom(Widget w _GL_UNUSED, XtPointer call_data)


-    if (!(gv_psfile != NULL || (gv_gs_arguments && *gv_gs_arguments))) {
+    if (!gv_psfile) {
        INFMESSAGE(no file) ENDMESSAGE(zoom_createZoom)

Greetings from Germany

Markus Steinborn
GNU gv maintainer

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