diff options
| -rw-r--r-- | src/libcamera/process.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp index 7f3a6518..d836fb07 100644 --- a/src/libcamera/process.cpp +++ b/src/libcamera/process.cpp @@ -259,7 +259,21 @@ int Process::start(const std::string &path, if (isolate()) _exit(EXIT_FAILURE); - closeAllFdsExcept(fds); + std::vector<int> v(fds); + v.push_back(STDERR_FILENO); + closeAllFdsExcept(v); + + const auto tryDevNullLowestFd = [](int expected, int oflag) { + int fd = open("/dev/null", oflag); + if (fd < 0) + _exit(EXIT_FAILURE); + if (fd != expected) + close(fd); + }; + + tryDevNullLowestFd(STDIN_FILENO, O_RDONLY); + tryDevNullLowestFd(STDOUT_FILENO, O_WRONLY); + tryDevNullLowestFd(STDERR_FILENO, O_WRONLY); const char *file = utils::secure_getenv("LIBCAMERA_LOG_FILE"); if (file && strcmp(file, "syslog")) |