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file.c: move rb_readlink on Windows

* win32/file.c (rb_readlink): move from file.c for better buffer
  allocation and the result encoding.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50063 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-03-23 12:22:10 +00:00
parent c57932f782
commit 2ffb87995a
3 changed files with 35 additions and 1 deletions

View file

@ -1,4 +1,7 @@
Mon Mar 23 17:36:00 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
Mon Mar 23 21:22:07 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* win32/file.c (rb_readlink): move from file.c for better buffer
allocation and the result encoding.
* win32/win32.c (wreadlink, rb_w32_ureadlink): implement readlink().

2
file.c
View file

@ -2790,6 +2790,7 @@ rb_file_s_readlink(VALUE klass, VALUE path)
return rb_readlink(path);
}
#ifndef _WIN32
VALUE
rb_readlink(VALUE path)
{
@ -2818,6 +2819,7 @@ rb_readlink(VALUE path)
return v;
}
#endif
#else
#define rb_file_s_readlink rb_f_notimplement
#endif

View file

@ -653,6 +653,35 @@ rb_file_expand_path_internal(VALUE fname, VALUE dname, int abs_mode, int long_na
return result;
}
ssize_t rb_w32_wreadlink(const WCHAR *path, WCHAR *buf, size_t bufsize);
VALUE
rb_readlink(VALUE path)
{
ssize_t len;
WCHAR *wpath, wbuf[MAX_PATH];
rb_encoding *enc;
UINT cp, path_cp;
rb_secure(2);
FilePathValue(path);
enc = rb_enc_get(path);
cp = path_cp = code_page(enc);
if (cp == INVALID_CODE_PAGE) {
path = fix_string_encoding(path, enc);
cp = CP_UTF8;
}
wpath = mbstr_to_wstr(cp, RSTRING_PTR(path), RSTRING_LEN(path), NULL);
if (!wpath) rb_memerror();
len = rb_w32_wreadlink(wpath, wbuf, numberof(wbuf));
free(wpath);
if (len < 0) rb_sys_fail_path(path);
enc = rb_filesystem_encoding();
cp = path_cp = code_page(enc);
if (cp == INVALID_CODE_PAGE) cp = CP_UTF8;
return append_wstr(rb_enc_str_new(0, 0, enc), wbuf, len, cp, path_cp, enc);
}
int
rb_file_load_ok(const char *path)
{