Mercurial > ecos-v3_0-branch
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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new file mode 100644 --- /dev/null +++ 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
