Clib string & memory functions

git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-06-26 00:54:22 +00:00
parent d5f66e011c
commit 836c97f0ac
162 changed files with 11855 additions and 0 deletions
--- a/watcom/trunk/clib/string/sscanf_s.c
+++ b/watcom/trunk/clib/string/sscanf_s.c
@@ -0,0 +1,87 @@
+/****************************************************************************
+*
+*                            Open Watcom Project
+*
+*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
+*
+*  ========================================================================
+*
+*    This file contains Original Code and/or Modifications of Original
+*    Code as defined in and that are subject to the Sybase Open Watcom
+*    Public License version 1.0 (the 'License'). You may not use this file
+*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
+*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
+*    provided with the Original Code and Modifications, and is also
+*    available at www.sybase.com/developer/opensource.
+*
+*    The Original Code and all software distributed under the License are
+*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
+*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
+*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
+*    NON-INFRINGEMENT. Please see the License for the specific language
+*    governing rights and limitations under the License.
+*
+*  ========================================================================
+*
+* Description:  Implementation of sscanf_s() - safe formatted string input.
+*
+****************************************************************************/
+
+
+#include "variety.h"
+#include "saferlib.h"
+#include "widechar.h"
+#include <stdio.h>
+#include <stdarg.h>
+#include <wchar.h>
+#include "scanf.h"
+
+
+static int cget_string( PTR_SCNF_SPECS specs )
+{
+    int     c;
+
+    if( (c = *(specs->ptr)) != NULLCHAR ) {
+        ++(specs->ptr);
+    } else {
+        c = EOF;
+        specs->eoinp = 1;
+    }
+    return( c );
+}
+
+
+static void uncget_string( int c, PTR_SCNF_SPECS specs )
+{
+    --specs->ptr;
+}
+
+
+
+_WCRTLINK int __F_NAME(sscanf_s,swscanf_s)( const CHAR_TYPE *s, const CHAR_TYPE *format, ... )
+{
+    SCNF_SPECS      specs;
+    const char      *msg;
+    int             rc;
+    va_list         args;
+
+    /* Basic check for null pointers to see if we can continue */
+    if( __check_constraint_nullptr_msg( msg, s )
+     && __check_constraint_nullptr_msg( msg, format ) ) {
+
+        specs.ptr        = (CHAR_TYPE *)s;
+        specs.cget_rtn   = cget_string;
+        specs.uncget_rtn = uncget_string;
+        msg = NULL;
+        va_start( args, format );
+        rc = __F_NAME(__scnf_s,__wscnf_s)( (PTR_SCNF_SPECS)&specs, format, &msg, args );
+        va_end( args );
+        if( msg == NULL ) {
+            /* no rt-constraint violation inside worker routine */
+            return( rc );
+        }
+    }
+    __rtct_fail( __func__, msg, NULL );
+    return( __F_NAME(EOF,WEOF) );
+}