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* win32/win32.c (init_env): get rid of alloca() for outer string.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-03-11 22:25:22 +00:00
parent d6191738bc
commit 772acb9f1d
2 changed files with 20 additions and 11 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Fri Mar 12 07:25:16 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* win32/win32.c (init_env): get rid of alloca() for outer string.
Fri Mar 12 07:17:15 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/racc/cparse/cparse.c: suppressed warnings for shortening on

27
win32/win32.c
View file

@ -434,10 +434,18 @@ static void
init_env(void)
{
static const WCHAR TMPDIR[] = L"TMPDIR";
WCHAR env[_MAX_PATH];
WCHAR *buf;
struct {WCHAR name[6], eq, val[_MAX_PATH];} wk;
DWORD len;
BOOL f;
#define env wk.val
#define set_env_val(vname) do { \
typedef char namesizecheck[numberof(wk.name) < numberof(vname) - 1 ? -1 : 1]; \
WCHAR *const buf = wk.name + numberof(wk.name) - numberof(vname); \
MEMCPY(buf, vname, WCHAR, numberof(vname) - 1); \
_wputenv(buf); \
} while (0)
wk.eq = L'=';
if (!GetEnvironmentVariableW(L"HOME", env, numberof(env))) {
f = FALSE;
@ -459,9 +467,7 @@ init_env(void)
}
if (f) {
regulate_path(env);
buf = ALLOCA_N(WCHAR, 5 + lstrlenW(env) + 1);
wsprintfW(buf, L"HOME=%s", env);
_wputenv(buf);
set_env_val(L"HOME");
}
}
@ -471,9 +477,7 @@ init_env(void)
NTLoginName = "<Unknown>";
return;
}
buf = ALLOCA_N(WCHAR, 5 + lstrlenW(env) + 1);
wsprintfW(buf, L"USER=%s", env);
_wputenv(buf);
set_env_val(L"USER");
}
NTLoginName = strdup(rb_w32_getenv("USER"));
@ -487,11 +491,12 @@ init_env(void)
if (*(p - 1) != L'/') *p++ = L'/';
if (p - env + numberof(temp) < numberof(env)) {
memcpy(p, temp, sizeof(temp));
buf = ALLOCA_N(WCHAR, lstrlenW(TMPDIR) + 1 + lstrlenW(env) + 1);
wsprintfW(buf, L"%s=%s", TMPDIR, env);
_wputenv(buf);
set_env_val(TMPDIR);
}
}
#undef env
#undef set_env_val
}