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os_getenv, os_setenv: revert "widechar" impl

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It's reported that the Windows widechar variants do automatically
convert from the current codepage to UTF16, which is very helpful. So
the "widechar" impls are a good direction.  But libuv v1.12 does that
for us, so the next commit will use that instead.

ref #8398
ref #9267
This commit is contained in:
Justin M. Keyes
2018-01-28 11:02:15 +01:00
parent 865584dd0c
commit 1d8e768360
2 changed files with 12 additions and 41 deletions
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33
src/nvim/os/env.c
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@@ -36,25 +36,8 @@
const char *os_getenv(const char *name)
FUNC_ATTR_NONNULL_ALL
{
#if !defined(WIN32)
const char *e = getenv(name);
return e == NULL || *e == NUL ? NULL : e;
#else
wchar_t *wname;
utf8_to_utf16(name, &wname);
if (wname == NULL) {
xfree(wname);
return NULL;
}
wchar_t *wvalue = _wgetenv(wname);
char *value;
int rv = utf16_to_utf8(wvalue, &value);
if (rv != 0 || *value == NUL) {
xfree(value);
return NULL;
}
return value; // TODO(jmk): this was allocated, but callers don't free it ...
#endif
}
/// Returns `true` if the environment variable, `name`, has been defined
@@ -72,21 +55,9 @@ int os_setenv(const char *name, const char *value, int overwrite)
if (!overwrite && os_getenv(name) != NULL) {
return 0;
}
wchar_t *wname;
utf8_to_utf16(name, &wname);
if (wname == NULL) {
return -1;
}
wchar_t *wvalue;
utf8_to_utf16(value, &wvalue);
if (wvalue == NULL) {
return -1;
}
int rv = (int)_wputenv_s(wname, wvalue);
xfree(wname); // Unlike unix putenv(), we can free after _wputenv_s().
xfree(wvalue);
int rv = (int)_putenv_s(name, value);
if (rv != 0) {
ELOG("_wputenv_s failed: %d: %s", rv, uv_strerror(rv));
ELOG("_putenv_s failed: %d: %s", rv, uv_strerror(rv));
return -1;
}
return 0;