| 8 | #include <ctype.h> |
| 9 | |
| 10 | bool debuggerIsAttached() |
| 11 | { |
| 12 | char buf[4096]; |
| 13 | |
| 14 | const int status_fd = ::open("/proc/self/status", O_RDONLY); |
| 15 | if (status_fd == -1) |
| 16 | return false; |
| 17 | |
| 18 | const ssize_t num_read = ::read(status_fd, buf, sizeof(buf) - 1); |
| 19 | ::close(status_fd); |
| 20 | |
| 21 | if (num_read <= 0) |
| 22 | return false; |
| 23 | |
| 24 | buf[num_read] = '\0'; |
| 25 | constexpr char tracerPidString[] = "TracerPid:"; |
| 26 | const auto tracer_pid_ptr = ::strstr(buf, tracerPidString); |
| 27 | if (!tracer_pid_ptr) |
| 28 | return false; |
| 29 | |
| 30 | for (const char* characterPtr = tracer_pid_ptr + sizeof(tracerPidString) - 1; characterPtr <= buf + num_read; ++characterPtr) |
| 31 | { |
| 32 | if (::isspace(*characterPtr)) |
| 33 | continue; |
| 34 | else |
| 35 | return ::isdigit(*characterPtr) != 0 && *characterPtr != '0'; |
| 36 | } |
| 37 | |
| 38 | return false; |
| 39 | } |
| 40 | #endif // DEBUGGERUTILS_H |