Re: [PATCH] Fix a segfault when stage2= boot parameter and kickstart url method is used (#524417).

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Chris Lumens wrote:

What happens if I boot with:

   linux ks=http://wherever/whatever.ks stage2=http://wherever/install.img

If I read the code correctly (in my patched test builds NM can't set up the network so I can test it probably only with ks on media) the problem with the patch is that in case when ks url command value *isn't* stage2 location (doesn't end with ".img"), inferred value will override stage2= parameter which is incorrect change of behaviour I guess.
Attached patch should be better in this respect.

Radek



>From ff6e1471131b3f14c1d1b0e2d12a78c16dd0871c Mon Sep 17 00:00:00 2001
From: Radek Vykydal <rvykydal@xxxxxxxxxx>
Date: Tue, 29 Sep 2009 13:22:21 +0200
Subject: [PATCH] Fix a segfault when stage2= boot parameter and kickstart url method is used (#524417).

Concerns cases when stage2= can't be parsed as http or ftp url.
---
 loader/urlinstall.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/loader/urlinstall.c b/loader/urlinstall.c
index 150800e..57b9bc2 100644
--- a/loader/urlinstall.c
+++ b/loader/urlinstall.c
@@ -463,9 +463,7 @@ void setKickstartUrl(struct loaderData_s * loaderData, int argc,
     }
 
     /* determine install type */
-    if (strstr(url, "http://";) || strstr(url, "ftp://";))
-	loaderData->method = METHOD_URL;
-    else {
+    if (!strstr(url, "http://";) && !strstr(url, "ftp://";)) {
         newtWinMessage(_("Kickstart Error"), _("OK"),
                        _("Unknown Url method %s"), url);
         return;
@@ -479,6 +477,7 @@ void setKickstartUrl(struct loaderData_s * loaderData, int argc,
             return;
 
         ((struct urlInstallData *)loaderData->stage2Data)->url = url;
+        loaderData->method = METHOD_URL;
     }
 
     logMessage(INFO, "results of url ks, url %s", url);
-- 
1.6.0.6

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