xref: /freebsd/contrib/sendmail/libsm/fscanf.c (revision 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc)
1 /*
2  * Copyright (c) 2000-2001 Proofpoint, 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 #include <sm/gen.h>
16 SM_RCSID("@(#)$Id: fscanf.c,v 1.18 2013-11-22 20:51:42 ca Exp $")
17 #include <sm/varargs.h>
18 #include <sm/assert.h>
19 #include <sm/io.h>
20 #include "local.h"
21 
22 /*
23 **  SM_IO_FSCANF -- convert input data to translated format
24 **
25 **	Parameters:
26 **		fp -- the file pointer to obtain the data from
27 **		timeout -- time to complete scan
28 **		fmt -- the format to translate the data to
29 **		... -- memory locations to place the formatted data
30 **
31 **	Returns:
32 **		Failure: returns SM_IO_EOF
33 **		Success: returns the number of data units translated
34 */
35 
36 int
37 #if SM_VA_STD
38 sm_io_fscanf(SM_FILE_T *fp, int timeout, char const *fmt, ...)
39 #else /* SM_VA_STD */
40 sm_io_fscanf(fp, timeout, fmt, va_alist)
41 	SM_FILE_T *fp;
42 	int timeout;
43 	char *fmt;
44 	va_dcl
45 #endif /* SM_VA_STD */
46 {
47 	int ret;
48 	SM_VA_LOCAL_DECL
49 
50 	SM_REQUIRE_ISA(fp, SmFileMagic);
51 	SM_VA_START(ap, fmt);
52 	ret = sm_vfscanf(fp, timeout, fmt, ap);
53 	SM_VA_END(ap);
54 	return ret;
55 }
56