6 calls to drupal_tempnam()

file_unmanaged_save_data in drupal/includes/file.inc
Saves a string to the specified destination without invoking file API.
image_gd_save in drupal/modules/system/image.gd.inc
GD helper to write an image resource to a destination file.
LocaleExportFunctionalTest::testExportTranslation in drupal/modules/locale/locale.test
Test exportation of translations.
LocaleImportFunctionalTest::importPoFile in drupal/modules/locale/locale.test
Helper function: import a standalone .po file in a given language.
LocalePluralFormatTest::importPoFile in drupal/modules/locale/locale.test
Imports a standalone .po file in a given language.
update_manager_local_transfers_allowed in drupal/modules/update/update.manager.inc
Determines if file transfers will be performed locally.