usr/src/lib/libc/port/stdio/scanf.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include "lint.h"
  33 #include "file64.h"
  34 #include "mtlib.h"
  35 #include <stdio.h>
  36 #include <stdarg.h>
  37 #include <string.h>
  38 #include <thread.h>
  39 #include <synch.h>
  40 #include "libc.h"
  41 #include "stdiom.h"
  42 #include "mse.h"
  43 #include <stdio_ext.h>
  44
  45 /*VARARGS1*/
  46 int
  47 scanf(const char *fmt, ...)
  48 {
  49         int ret;
  50         va_list ap;
  51
  52         va_start(ap, fmt);
  53         ret = vscanf(fmt, ap);
  54         va_end(ap);
  55
  56         return (ret);
  57 }
  58
  59 /*VARARGS2*/
  60 int
  61 fscanf(FILE *iop, const char *fmt, ...)
  62 {
  63         int ret;
  64         va_list ap;
  65
  66         va_start(ap, fmt);
  67         ret = vfscanf(iop, fmt, ap);
  68         va_end(ap);
  69
  70         return (ret);
  71 }
  72
  73 /*VARARGS2*/
  74 int
  75 sscanf(const char *str, const char *fmt, ...)
  76 {
  77         int ret;
  78         va_list ap;
  79
  80         va_start(ap, fmt);
  81         ret = vsscanf(str, fmt, ap);
  82         va_end(ap);
  83
  84         return (ret);
  85 }
  86
  87 #ifndef _LP64
  88
  89 /*
  90  * 32-bit shadow functions _scanf_c89(), _fscanf_c89(), _sscanf_c89()
  91  * included here.
  92  * When using the c89 compiler to build 32-bit applications, the size
  93  * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits.
  94  * The shadow function uses 32-bit size of intmax_t for %j conversion.
  95  * The #pragma redefine_extname in <stdio.h> selects the proper routine
  96  * at compile time for the user application.
  97  * NOTE: the shadow function only exists in the 32-bit library.
  98  */
  99
 100 int
 101 _scanf_c89(const char *fmt, ...)
 102 {
 103         int ret;
 104         va_list ap;
 105
 106         va_start(ap, fmt);
 107         ret = _vscanf_c89(fmt, ap);
 108         va_end(ap);
 109
 110         return (ret);
 111 }
 112
 113 int
 114 _fscanf_c89(FILE *iop, const char *fmt, ...)
 115 {
 116         int ret;
 117         va_list ap;
 118
 119         va_start(ap, fmt);
 120         ret = _vfscanf_c89(iop, fmt, ap);
 121         va_end(ap);
 122
 123         return (ret);
 124 }
 125
 126 int
 127 _sscanf_c89(const char *str, const char *fmt, ...)
 128 {
 129         int ret;
 130         va_list ap;
 131
 132         va_start(ap, fmt);
 133         ret = _vsscanf_c89(str, fmt, ap);
 134         va_end(ap);
 135
 136         return (ret);
 137 }
 138
 139 #endif  /* _LP64 */