Implement iswascii in libc, checking whether a wide character falls within the 7-bit ASCII range (0x00 to 0x7F). Add unit test coverage in GuestRuneLocale.
asctime_s and sceAmprAsctimeS added 1900 to tm_year in int before the range check, so a tm_year near INT_MAX overflowed: UndefinedBehaviorSanitizer reports signed integer overflow at SonyCrt.hpp:91. The year is now computed in 64 bits; the result stays EINVAL with an empty buffer for any year outside 0 to 9999.
A traced run that ends without a crash or an abort never reports which
imports it called. With APS5_TRACE_CALLS_FILE set, the first traced import
starts a thread that rewrites that file every 10 seconds with every import
called so far, most called first.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
fstat, _fstat, sceKernelFstat, stat, lstat, sceKernelStat and _fstatfs
filled the caller's struct in place, or copied into it after a check that
only tests for null, so a pointer into unmapped memory crashed the host.
Fill a local struct and copy it out with a checked write that fails with
EFAULT. FreeBSD 11.4 does the same after the lookup has succeeded:
copyout(&ub, uap->sb) in sys_fstat (sys/kern/kern_descrip.c:1328),
copyout(&sb, uap->ub) in sys_stat (sys/kern/vfs_syscalls.c:2066) and
copyout(sfp, uap->buf) in sys_fstatfs (sys/kern/vfs_syscalls.c:337).
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The printf family formatted floating-point conversions through the host,
which prints every exact digit and rounds ties to even. The libc.prx
that titles ship keeps the exact digits only down to a position derived
from the binary exponent and prints zeros after them, rounds half up on
the kept digits, and rounds an exact tie down once that exponent
estimate reaches 8. So %.0f of 2.5 is 3 and %.1f of 0.25 is 0.3 there,
and %.20f of 0.1 is 0.10000000000000000555.
Format finite double and long double e, f and g conversions with those
rules from exactly generated digits, on every host. On 600,000 random
formats every output with up to 17 significant digits now matches the
copies bundled with PPSA07923, PPSA05916 and PPSA13934; longer outputs
still differ where the console's extended-precision digits end one unit
lower.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Windows printf family handed %a and %A to the host, whose UCRT prints
a subnormal unnormalised (0x0.0000000000001p-1022) and pads with zeros
even when the - flag is given (%-010a of 1.5 gave 0x001.8p+0). The
libc.prx that titles ship normalises subnormals (0x1p-1074), rounds a
shorter precision half up without renormalising a carry, and lets -
override 0, as C requires.
Finite doubles are now formatted here, checked against three titles'
copies of libc.prx run side by side.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Keep #3987's q, D, O, U, width, '-' and trailing '%' handling for
unknown conversions and fold it into this branch's measured path:
'#' and precision are ignored as measured, '+', space, apostrophe
and '0' with a width still throw.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
alwaysNoconv, maxLength, encoding, in, out, unshift, length matches the MSVC/Dinkumware xlocale declaration order at 0x20-0x50; the generated layout is unchanged because each swapped pair shares one function pointer.
The unknown-conversion branch printed %m, positional arguments, the grouping
flag and modifiers in an unusual order as literal characters. Only characters
FreeBSD's vfprintf prints as themselves are now printed.
(cherry picked from commit 0106858d3d39f83eb2234a5f581d5bf5260521a0)
The Windows printf family threw on the q length modifier, the D, O and U
conversions, an unknown conversion character and a format ending in a percent
sign, where FreeBSD's vfprintf formats the first three and prints the unknown
character itself or stops at the end of the format.
(cherry picked from commit 0e3b2896d228c601cefc992b2895723188ebf0fa)
Adrià