diff packages/language/c/libc/string/current/src/bsdstring.cxx @ 197:51b34619b677

Merge from eCos master repository on 2001-11-30-11:22:06-GMT
author jlarmour
date Fri, 30 Nov 2001 13:09:25 +0000
parents
children e0c0827131d1
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+++ b/packages/language/c/libc/string/current/src/bsdstring.cxx
@@ -0,0 +1,226 @@
+//===========================================================================
+//
+//      bsdstring.cxx
+//
+//      BSD string routines
+//
+//===========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.  
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//===========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     jlarmour
+// Contributors:  
+// Date:          2001-11-27
+// Purpose:       Provide string functions derived from BSD
+// Description: 
+// Usage:         #include <string.h>
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc_string.h>   // Configuration header
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>    // Common type definitions
+#include <cyg/infra/cyg_trac.h>    // Tracing support
+#include <cyg/infra/cyg_ass.h>     // Assertion support
+#include <string.h>                // Header for this file
+#include <stddef.h>                // size_t, NULL etc.
+#include <ctype.h>                 // toupper/tolower
+
+// FUNCTIONS
+
+/*---------------------------------------------------------------------*/
+/* strcasecmp */
+
+__externC int
+__strcasecmp( const char *s1, const char *s2 )
+{
+    CYG_REPORT_FUNCNAMETYPE( "strcasecmp", "returning %d" );
+    CYG_REPORT_FUNCARG2( "s1=%08x, s2=%08x", s1, s2 );
+
+    CYG_CHECK_DATA_PTR( s1, "s1 is not a valid pointer!" );
+    CYG_CHECK_DATA_PTR( s2, "s2 is not a valid pointer!" );
+
+    while (*s1 != '\0' && tolower(*s1) == tolower(*s2))
+    {
+        s1++;
+        s2++;
+    }
+
+    int ret = tolower(*(unsigned char *) s1) - tolower(*(unsigned char *) s2);
+    CYG_REPORT_RETVAL( ret );
+    return ret;
+}
+
+__externC int
+strcasecmp( const char *s1, const char *s2 ) \
+  CYGBLD_ATTRIB_WEAK_ALIAS(__strcasecmp);
+
+
+/*---------------------------------------------------------------------*/
+/* strncasecmp */
+
+__externC int
+__strncasecmp( const char *s1, const char *s2, size_t n )
+{
+    CYG_REPORT_FUNCNAMETYPE( "strncasecmp", "returning %d" );
+    CYG_REPORT_FUNCARG3( "s1=%08x, s2=%08x, n=%d", s1, s2, n );
+
+    if (n == 0)
+    {
+        CYG_REPORT_RETVAL(0);
+        return 0;
+    }
+
+    CYG_CHECK_DATA_PTR( s1, "s1 is not a valid pointer!" );
+    CYG_CHECK_DATA_PTR( s2, "s2 is not a valid pointer!" );
+
+    while (n-- != 0 && tolower(*s1) == tolower(*s2))
+    {
+        if (n == 0 || *s1 == '\0' || *s2 == '\0')
+            break;
+        s1++;
+        s2++;
+    }
+
+    int ret = tolower(*(unsigned char *) s1) - tolower(*(unsigned char *) s2);
+    CYG_REPORT_RETVAL( ret );
+    return ret;
+}
+
+__externC int
+strncasecmp( const char *s1, const char *s2, size_t n ) \
+  CYGBLD_ATTRIB_WEAK_ALIAS(__strncasecmp);
+
+/*---------------------------------------------------------------------*/
+/* bcmp */
+
+__externC int
+__bcmp( const void *s1, const void *s2, size_t n )
+{
+    // Don't bother tracing - memcmp can do that
+    return memcmp (s1, s2, n);
+}
+
+__externC int
+bcmp( const void *s1, const void *s2, size_t n ) \
+  CYGBLD_ATTRIB_WEAK_ALIAS(__bcmp);
+
+/*---------------------------------------------------------------------*/
+/* bcopy */
+
+__externC void
+__bcopy( const void *src, void *dest, size_t n )
+{
+    // Don't bother tracing - memmove can do that
+    memmove (dest, src, n);
+}
+
+__externC void
+bcopy( const void *src, void *dest, size_t n ) \
+  CYGBLD_ATTRIB_WEAK_ALIAS(__bcopy);
+
+/*---------------------------------------------------------------------*/
+/* bzero */
+
+__externC void
+__bzero( void *s, size_t n )
+{
+    // Don't bother tracing - memset can do that
+    memset( s, 0, n );
+}
+
+__externC void
+bzero( void *s, size_t n ) CYGBLD_ATTRIB_WEAK_ALIAS(__bzero);
+
+/*---------------------------------------------------------------------*/
+/* index */
+
+__externC char *
+__index( const char *s, int c )
+{
+    // Don't bother tracing - strchr can do that
+    return strchr(s, c);
+}
+
+__externC char *
+index( const char *s, int c ) CYGBLD_ATTRIB_WEAK_ALIAS(__index);
+
+/*---------------------------------------------------------------------*/
+/* rindex */
+
+__externC char *
+__rindex( const char *s, int c )
+{
+    // Don't bother tracing - strrchr can do that
+    return strrchr(s, c);
+}
+
+__externC char *
+rindex( const char *s, int c ) CYGBLD_ATTRIB_WEAK_ALIAS(__rindex);
+
+/*---------------------------------------------------------------------*/
+/* swab */
+
+__externC void
+__swab( const void *from, void *to, size_t n )
+{
+    const char *f = (const char *)from;
+    char *t = (char *)to;
+    size_t ptr;
+
+    CYG_REPORT_FUNCNAME( "swab" );
+    CYG_REPORT_FUNCARG3( "from=%08x, to=%08x, n=%d", from, to, n );
+
+    if (n) {
+        CYG_CHECK_DATA_PTR( from, "from is not a valid pointer!" );
+        CYG_CHECK_DATA_PTR( to, "to is not a valid pointer!" );
+    }
+
+    for (ptr = 1; ptr < n; ptr += 2)
+    {
+        char p = f[ptr];
+        char q = f[ptr-1];
+        t[ptr-1] = p;
+        t[ptr  ] = q;
+    }
+    if (ptr == n)          /* I.e., if n is odd, */
+        t[ptr-1] = '\0';   /* then pad with a NUL. */
+
+    CYG_REPORT_RETURN();
+}
+
+__externC void
+swab( const void *from, void *to, size_t n ) \
+  CYGBLD_ATTRIB_WEAK_ALIAS(__swab);
+
+/*---------------------------------------------------------------------*/
+// EOF bsdstring.cxx