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