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Greatly expand system() shell code features

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The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
This commit is contained in:
Justine Tunney 2022-10-11 21:06:27 -07:00
parent e7329b7cba
commit b41f91c658
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GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
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9
libc/fmt/wcstoul.c
View file

@ -19,6 +19,7 @@
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/fmt/strtol.internal.h"
#include "libc/limits.h"
#include "libc/str/str.h"
#include "libc/str/tab.internal.h"
@ -45,8 +46,12 @@ unsigned long wcstoul(const wchar_t *s, wchar_t **endptr, int base) {
if ((c = kBase36[c & 255]) && --c < base) {
t |= 1;
do {
x *= base;
x += c;
if (__builtin_mul_overflow(x, base, &x) ||
__builtin_add_overflow(x, c, &x)) {
if (endptr) *endptr = s + 1;
errno = ERANGE;
return ULONG_MAX;
}
} while ((c = kBase36[*++s & 255]) && --c < base);
}
if (t && endptr) *endptr = s;