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deploy-ng: fix redirecting GUI app output to log in VC2015/UCRT

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Fixes #461
This commit is contained in:
rdb 2018-12-02 20:22:07 +01:00
parent 3124564040
commit 2664a24e6a
1 changed files with 19 additions and 7 deletions
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26
pandatool/src/deploy-stub/deploy-stub.c
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@ -264,17 +264,29 @@ static int setup_logging(const char *path, int append) {
SetFilePointer(handle, 0, NULL, FILE_END);
}
fflush(stdout);
fflush(stderr);
int fd = _open_osfhandle((intptr_t)handle, _O_WRONLY | _O_TEXT | (append ? _O_APPEND : 0));
SetStdHandle(STD_OUTPUT_HANDLE, handle);
_dup2(fd, 1);
SetStdHandle(STD_ERROR_HANDLE, handle);
_dup2(fd, 2);
// If we are running under the UCRT in a GUI application, we can't be sure
// that we have valid fds for stdout and stderr, so we have to set them up.
// One way to do this is to reopen them to something silly (like NUL).
if (_fileno(stdout) < 0) {
_close(1);
_wfreopen(L"\\\\.\\NUL", L"w", stdout);
}
if (_fileno(stderr) < 0) {
_close(2);
_wfreopen(L"\\\\.\\NUL", L"w", stderr);
}
// Now replace the stdout and stderr file descriptors with one pointing to
// our desired handle.
int fd = _open_osfhandle((intptr_t)handle, _O_WRONLY | _O_TEXT | (append ? _O_APPEND : 0));
_dup2(fd, _fileno(stdout));
_dup2(fd, _fileno(stderr));
_close(fd);
return 1;
#else
// Does it start with a tilde? Perform tilde expansion if so.