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msvcrt: Fix _wputenv_s return value on error.

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Piotr Caban 2022-10-21 13:30:19 +02:00 • committed by Alexandre Julliard
parent 53acb6e736
commit f0e6447b7f
1 changed files with 11 additions and 6 deletions
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17
dlls/msvcrt/environ.c
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@ -191,19 +191,24 @@ errno_t CDECL _putenv_s(const char *name, const char *value)
/*********************************************************************
* _wputenv_s (MSVCRT.@)
*/
int CDECL _wputenv_s(const wchar_t *name, const wchar_t *value)
errno_t CDECL _wputenv_s(const wchar_t *name, const wchar_t *value)
{
int ret;
errno_t ret = 0;
TRACE("%s %s\n", debugstr_w(name), debugstr_w(value));
if (!MSVCRT_CHECK_PMT(name != NULL)) return -1;
if (!MSVCRT_CHECK_PMT(value != NULL)) return -1;
ret = SetEnvironmentVariableW(name, value[0] ? value : NULL) ? 0 : -1;
/* _putenv returns success on deletion of nonexistent variable, unlike [Rtl]SetEnvironmentVariable */
if ((ret == -1) && (GetLastError() == ERROR_ENVVAR_NOT_FOUND)) ret = 0;
if (!SetEnvironmentVariableW(name, value[0] ? value : NULL))
{
/* _putenv returns success on deletion of nonexistent variable */
if (GetLastError() != ERROR_ENVVAR_NOT_FOUND)
{
msvcrt_set_errno(GetLastError());
ret = *_errno();
}
}
MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(MSVCRT__environ);
MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(MSVCRT__wenviron);