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ruby.c: runtime_libruby_path

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* ruby.c (runtime_libruby_path): hoisted out platform dependent
  routine to get the loaded runtime library path.
  cygwin_conv_path does path separator and WCHAR to UTF-8
  conversions too.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-05-21 12:24:47 +00:00
parent c8d17d71d7
commit 68b87aedde
1 changed files with 51 additions and 49 deletions
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100
ruby.c
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@ -470,12 +470,57 @@ ruby_init_loadpath(void)
ruby_init_loadpath_safe(0);
}
#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR) && !defined(__CYGWIN__)
#if defined(LOAD_RELATIVE)
static VALUE
dladdr_path(const void* addr)
runtime_libruby_path(void)
{
#if defined _WIN32 || defined __CYGWIN__
DWORD len = RSTRING_EMBED_LEN_MAX, ret;
VALUE path;
VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
WCHAR *wlibpath;
char *libpath;
while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
ret = GetModuleFileNameW(libruby, wlibpath, len),
(ret == len))
{
rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
}
if (!ret || ret > len) rb_fatal("failed to get module file name");
#if defined __CYGWIN__
{
const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0);
if (!newsize) rb_fatal("failed to convert module path to cygwin");
path = rb_str_new(0, newsize);
libpath = RSTRING_PTR(path);
if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) {
rb_str_resize(path, 0);
}
}
#else
{
DWORD i;
for (len = ret, i = 0; i < len; ++i) {
if (wlibpath[i] == L'\\') {
wlibpath[i] = L'/';
ret = i+1; /* chop after the last separator */
}
}
}
len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
path = rb_utf8_str_new(0, len);
libpath = RSTRING_PTR(path);
WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
#endif
rb_str_resize(wsopath, 0);
return path;
#elif defined(HAVE_DLADDR)
Dl_info dli;
VALUE fname, path;
const void* addr = (void *)(VALUE)expand_include_path;
if (!dladdr(addr, &dli)) {
return rb_str_new(0, 0);
@ -492,6 +537,9 @@ dladdr_path(const void* addr)
}
rb_str_resize(fname, 0);
return path;
#else
# error relative load path is not supported on this platform.
#endif
}
#endif
@ -527,55 +575,9 @@ ruby_init_loadpath_safe(int safe_level)
size_t baselen;
const char *p;
#if defined _WIN32 || defined __CYGWIN__
{
DWORD len = RSTRING_EMBED_LEN_MAX, ret, i;
VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
WCHAR *wlibpath;
while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
ret = GetModuleFileNameW(libruby, wlibpath, len),
(ret == len))
{
rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
}
if (!ret || ret > len) rb_fatal("failed to get module file name");
for (len = ret, i = 0; i < len; ++i) {
if (wlibpath[i] == L'\\') {
wlibpath[i] = L'/';
ret = i+1; /* chop after the last separator */
}
}
len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
sopath = rb_utf8_str_new(0, len);
libpath = RSTRING_PTR(sopath);
WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
rb_str_resize(wsopath, 0);
}
#elif defined(HAVE_DLADDR)
sopath = dladdr_path((void *)(VALUE)expand_include_path);
sopath = runtime_libruby_path();
libpath = RSTRING_PTR(sopath);
#else
# error relative load path is not supported on this platform.
#endif
#if defined DOSISH && !defined _WIN32
translit_char(libpath, '\\', '/');
#elif defined __CYGWIN__
{
const int win_to_posix = CCP_WIN_A_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, libpath, 0, 0);
if (newsize > 0) {
VALUE rubylib = rb_str_new(0, newsize);
char *p2 = RSTRING_PTR(rubylib);
if (cygwin_conv_path(win_to_posix, libpath, p2, newsize) == 0) {
rb_str_resize(sopath, 0);
sopath = rubylib;
libpath = p2;
}
}
}
#endif
p = strrchr(libpath, '/');
if (p) {
static const char bindir[] = "/bin";