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/*
* linux/fs/hfs/trans.c
*
* Copyright (C) 1995-1997 Paul H. Hargrove
* This file may be distributed under the terms of the GNU General Public License.
*
* This file contains routines for converting between the Macintosh
* character set and various other encodings. This includes dealing
* with ':' vs. '/' as the path-element separator.
*/
#include "hfs_fs.h"
/*================ Global functions ================*/
/*
* hfs_mac2triv()
*
* Given a 'Pascal String' (a string preceded by a length byte) in
* the Macintosh character set produce the corresponding filename using
* the 'trivial' name-mangling scheme, returning the length of the
* mangled filename. Note that the output string is not NULL
* terminated.
*
* The name-mangling works as follows:
* The character '/', which is illegal in Linux filenames is replaced
* by ':' which never appears in HFS filenames. All other characters
* are passed unchanged from input to output.
*/
int hfs_mac2triv(char *out, const struct hfs_name *in)
{
const char *p;
char c;
int i, len;
len = in->len;
p = in->name;
for (i = 0; i < len; i++) {
c = *p++;
*out++ = c == '/' ? ':' : c;
}
return i;
}
/*
* hfs_triv2mac()
*
* Given an ASCII string (not null-terminated) and its length,
* generate the corresponding filename in the Macintosh character set
* using the 'trivial' name-mangling scheme, returning the length of
* the mangled filename. Note that the output string is not NULL
* terminated.
*
* This routine is a inverse to hfs_mac2triv().
* A ':' is replaced by a '/'.
*/
void hfs_triv2mac(struct hfs_name *out, struct qstr *in)
{
const char *src;
char *dst, c;
int i, len;
out->len = len = min((unsigned int)HFS_NAMELEN, in->len);
src = in->name;
dst = out->name;
for (i = 0; i < len; i++) {
c = *src++;
*dst++ = c == ':' ? '/' : c;
}
for (; i < HFS_NAMELEN; i++)
*dst++ = 0;
}
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