Fix for 4585. Crash saving updates.tgz file from server if it already

	* libnautilus-extensions/nautilus-file-utilities.c:
	(nautilus_copy_uri_simple), (nautilus_unique_temporary_file_name):
	* libnautilus-extensions/nautilus-file-utilities.h:
	* src/nautilus-first-time-druid.c: (download_callback):
	Fix for 4585.  Crash saving updates.tgz file from server if it
	already exists.  The fix is to use a unique temporary file name
	and cleaning up after untar the update tarball.

1 files changed, 18 insertions, 0 deletions

diff --git a/libnautilus-private/nautilus-file-utilities.c b/libnautilus-private/nautilus-file-utilities.c
index 2c88a80b9..ff0221838 100644
--- a/libnautilus-private/nautilus-file-utilities.c
+++ b/libnautilus-private/nautilus-file-utilities.c
@@ -31,6 +31,7 @@
 #include <sys/stat.h>
 #include <string.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "nautilus-file.h"
 #include "nautilus-link-set.h"
 #include "nautilus-metadata.h"
@@ -1190,6 +1191,23 @@ nautilus_copy_uri_simple ( const char *source_uri, const char *dest_uri)
 	return  result;
 }
 
+char *
+nautilus_unique_temporary_file_name (void)
+{
+	const char *prefix = "/tmp/nautilus-temp-file";
+	char *file_name;
+	static guint count = 1;
+
+	file_name = g_strdup_printf ("%sXXXXXX", prefix);
+
+	if (mktemp (file_name) != file_name) {
+		g_free (file_name);
+		file_name = g_strdup_printf ("%s-%d-%d", prefix, count++, getpid ());
+	}
+
+	return file_name;
+}
+
 #ifdef EAZEL_BUILD_TIMESTAMP
 static const char *BUILD_TIMESTAMP = EAZEL_BUILD_TIMESTAMP;
 #else