AnyPS5/docs/dev/debt/libScePosixForWebKit.md

libScePosixForWebKit technical debt

Unknown function info

• gethostbyname (libScePosixForWebKit) - numeric IPv4 forms, trailing whitespace and 64-bit accumulation follow FreeBSD 11.4 inet_aton; clearing the resolver error on numeric success follows fakeaddr. Exact PS5 behavior is unverified; hostname lookup still uses the host resolver
• __wrap_access, __wrap_clock_gettime, __wrap_fchown, __wrap_getcwd, __wrap_getenv, __wrap_link, __wrap_lstat, __wrap_mmap, __wrap_readlink, __wrap_statvfs, __wrap_symlink, clock_gettime_np, getenv_np, gethostbyname_r (scePosixForWebKit_gethostbyname_r), mmap_np, msetname, pthread_setschedparam_np, setenv_np, sysinfo (scePosixForWebKit_sysinfo) (libScePosixForWebKit) - names/NIDs appear in the PS5 3.20 export inventory and verified NID name database; credible prototypes are unknown. These exports use renamed helpers; defining gethostbyname_r would interpose on the host function this library calls itself. All are parameterless import stubs, not ABI claims; callers must not use them until signatures are verified.

Functional

• mkstemp and isatty (libScePosixForWebKit) follow FreeBSD's temporary-file API and terminal check, without console verification. mkstemp replaces all trailing X characters, accepts a fixed name, and creates files through the guest path resolver with exclusive read/write access and mode 0600. Windows file permissions follow the existing kernel file implementation. isatty tests Windows console handles rather than all character devices; files, pipes and guest sockets return ENOTTY, closed descriptors return EBADF.
• arc4random (libScePosixForWebKit) returns four bytes of host OS entropy (getentropy, rand_s on Windows), as arc4random_buf does, uniform over the 32-bit range like FreeBSD 11.4's RC4 keystream in arc4random.c. The console's generator and its reseeding are unknown; arc4random_uniform, arc4random_stir and arc4random_addrandom are not in the module's export set and are absent
• fnmatch (libScePosixForWebKit) follows FreeBSD 11 fnmatch.c in the C locale: each byte is one character, FNM_CASEFOLD folds ASCII letters only, and bracket ranges compare byte values. [:class:] names are not character classes: as in FreeBSD 11 through 14, [[:digit:]] is the set of [, :, d, i, g, t followed by a literal ] (classes were added to fnmatch.c after 14). Multibyte characters and locale collation are not modelled. A null pattern or string throws
• getservbyname (libScePosixForWebKit) searches a built-in copy of 37 lines of FreeBSD 11.4's etc/services (ftp-data, ftp, ssh, telnet, smtp, domain, tftp, http, pop3, ntp, imap, https, rtsp, submission, imaps, pop3s with their aliases and protocols, in file order) the way getservent.c searches the file: case-sensitive name or alias, a null protocol takes the first match, the port in network byte order, the result in per-thread storage. The console's /etc/services is unknown, so any other service returns null without setting errno, as for a name the file lacks. getaddrinfo still resolves service names through the host's service database