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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
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
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2
libc/fmt/strtol.c
View file

@ -45,6 +45,8 @@
* on the the prefixes 0 (octal), 0x (hexadecimal), 0b (binary), or
* decimal (base 10) by default
* @return the decoded signed saturated number
* @raise EINVAL if `base` isn't 0 or 2..36
* @raise ERANGE on overflow
*/
long strtol(const char *s, char **endptr, int base) {
char t = 0;

6
libc/fmt/strtol.internal.h
View file

@ -1,5 +1,6 @@
#ifndef COSMOPOLITAN_LIBC_FMT_STRTOL_H_
#define COSMOPOLITAN_LIBC_FMT_STRTOL_H_
#include "libc/errno.h"
#define CONSUME_SPACES(s, c) \
if (endptr) *endptr = s; \
@ -10,7 +11,7 @@
if (c == '-' || c == '+') c = *++s
#define GET_RADIX(s, c, r) \
if (!(2 <= r && r <= 36)) { \
if (!r) { \
if (c == '0') { \
t |= 1; \
c = *++s; \
@ -26,6 +27,9 @@
} else { \
r = 10; \
} \
} else if (!(2 <= r && r <= 36)) { \
errno = EINVAL; \
return 0; \
} else if (c == '0') { \
t |= 1; \
c = *++s; \

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;