1 /* 2 * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Chris Torek. 9 * 10 * By using this file, you agree to the terms and conditions set 11 * forth in the LICENSE file which can be found at the top level of 12 * the sendmail distribution. 13 */ 14 15 #pragma ident "%Z%%M% %I% %E% SMI" 16 17 #include <sm/gen.h> 18 SM_RCSID("@(#)$Id: rewind.c,v 1.16 2001/04/03 01:46:40 ca Exp $") 19 #include <errno.h> 20 #include <sm/io.h> 21 #include <sm/assert.h> 22 #include "local.h" 23 24 /* 25 ** SM_IO_REWIND -- rewind the file 26 ** 27 ** Seeks the file to the begining and clears any outstanding errors. 28 ** 29 ** Parameters: 30 ** fp -- the flie pointer for rewind 31 ** timeout -- time to complete the rewind 32 ** 33 ** Returns: 34 ** none. 35 */ 36 37 void 38 sm_io_rewind(fp, timeout) 39 register SM_FILE_T *fp; 40 int timeout; 41 { 42 SM_REQUIRE_ISA(fp, SmFileMagic); 43 (void) sm_io_seek(fp, timeout, 0L, SM_IO_SEEK_SET); 44 (void) sm_io_clearerr(fp); 45 errno = 0; /* not required, but seems reasonable */ 46 } 47