From: Arvin Schnell <aschnell@suse.de>
Date: Tue, 19 Mar 2024 13:59:21 +0000 (+0100)
Subject: - improved error message
X-Git-Tag: v0.11.0~11^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F888%2Fhead;p=thirdparty%2Fsnapper.git

- improved error message
---

diff --git a/package/snapper.changes b/package/snapper.changes
index f09f225d..6fcfbf0d 100644
--- a/package/snapper.changes
+++ b/package/snapper.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Mar 19 14:58:12 CET 2024 - aschnell@suse.com
+
+- improved error message (gh#openSUSE/snapper#864)
+
 -------------------------------------------------------------------
 Sat  9 Mar 09:44:17 GMT 2024 - infinity0@pwned.gg
 
diff --git a/snapper/XmlFile.cc b/snapper/XmlFile.cc
index 75eda3f9..6361baaf 100644
--- a/snapper/XmlFile.cc
+++ b/snapper/XmlFile.cc
@@ -75,10 +75,13 @@ namespace snapper
 	    SN_THROW(IOErrorException("fdopen"));
 	}
 
+	errno = 0;
+
 	if (xmlDocFormatDump(f, doc, 1) == -1)
 	{
 	    fclose(f);
-	    SN_THROW(IOErrorException("xmlDocFormatDump failed"));
+	    SN_THROW(IOErrorException(sformat("xmlDocFormatDump failed, errno:%d (%s)", errno,
+					      stringerror(errno).c_str())));
 	}
 
 	fflush(f);