os.stat st_uid/st_gid/st_ino/st_nlink/st_mtime, os.getpid/getuid/getgid

Asked 2026-10-20 by neo-73: Vloot's faster process scan reads a process's owner as os.stat("/proc/<pid>").st_uid. Natively that raised AttributeError: 'TPyStat' object has no attribute 'st_uid'. TPyStat had only st_mode and st_size, and os.getpid/getuid/geteuid/getgid and os.path.getmtime didn't exist.

Fix:

• pypal PyPalStatFull reads the same one syscall as before (x86-64 stat, statx elsewhere) and returns mode, size, uid, gid, ino, nlink and mtime in nanoseconds. PyPalStatModeSize now wraps it.
• TPyStat gains st_uid, st_gid, st_ino, st_nlink, st_mtime and st_mtime_ns.
• PyPalGetId with getpid/getuid/geteuid/getgid numbers per target. i386 and arm32 use the 32-bit-id syscalls. ESP and wasm32 return 0.
• os.getpid, os.getuid, os.geteuid, os.getgid and os.path.getmtime are mapped in PyStdlibCallProc.

Checked against python3 on x86-64, and on aarch64, i386, arm32 and riscv32 under qemu. Test: test_nilpy_os_stat_owner_and_ids (relations, since values differ per machine; x86-64 and aarch64).