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Greatly expand system() shell code features

Browse source 
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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134
third_party/musl/strfmon.c vendored Normal file
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/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
│vi: set et ft=c ts=8 tw=8 fenc=utf-8 :vi│
╚──────────────────────────────────────────────────────────────────────────────╝
│ │
│ Musl Libc │
│ Copyright © 2005-2014 Rich Felker, et al. │
│ │
│ Permission is hereby granted, free of charge, to any person obtaining │
│ a copy of this software and associated documentation files (the │
│ "Software"), to deal in the Software without restriction, including │
│ without limitation the rights to use, copy, modify, merge, publish, │
│ distribute, sublicense, and/or sell copies of the Software, and to │
│ permit persons to whom the Software is furnished to do so, subject to │
│ the following conditions: │
│ │
│ The above copyright notice and this permission notice shall be │
│ included in all copies or substantial portions of the Software. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/errno.h"
#include "libc/fmt/fmt.h"
#include "libc/str/locale.h"
#include "libc/str/str.h"
#include "libc/thread/tls.h"
#include "third_party/python/Include/object.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
static ssize_t vstrfmon_l(char *s, size_t n, locale_t loc, const char *fmt, va_list ap)
{
size_t l;
double x;
int fill, nogrp, negpar, nosym, left, intl;
int lp, rp, w, fw;
char *s0=s;
for (; n && *fmt; ) {
if (*fmt != '%') {
literal:
*s++ = *fmt++;
n--;
continue;
}
fmt++;
if (*fmt == '%') goto literal;
fill = ' ';
nogrp = 0;
negpar = 0;
nosym = 0;
left = 0;
for (; ; fmt++) {
switch (*fmt) {
case '=':
fill = *++fmt;
continue;
case '^':
nogrp = 1;
continue;
case '(':
negpar = 1;
case '+':
continue;
case '!':
nosym = 1;
continue;
case '-':
left = 1;
continue;
}
break;
}
for (fw=0; isdigit(*fmt); fmt++)
fw = 10*fw + (*fmt-'0');
lp = 0;
rp = 2;
if (*fmt=='#') for (lp=0, fmt++; isdigit(*fmt); fmt++)
lp = 10*lp + (*fmt-'0');
if (*fmt=='.') for (rp=0, fmt++; isdigit(*fmt); fmt++)
rp = 10*rp + (*fmt-'0');
intl = *fmt++ == 'i';
w = lp + 1 + rp;
if (!left && fw>w) w = fw;
x = va_arg(ap, double);
l = snprintf(s, n, "%*.*f", w, rp, x);
if (l >= n) {
errno = E2BIG;
return -1;
}
s += l;
n -= l;
}
return s-s0;
}
ssize_t strfmon_l(char *restrict s, size_t n, locale_t loc, const char *restrict fmt, ...)
{
va_list ap;
ssize_t ret;
va_start(ap, fmt);
ret = vstrfmon_l(s, n, loc, fmt, ap);
va_end(ap);
return ret;
}
ssize_t strfmon(char *restrict s, size_t n, const char *restrict fmt, ...)
{
va_list ap;
ssize_t ret;
va_start(ap, fmt);
ret = vstrfmon_l(s, n, (locale_t)__get_tls()->tib_locale, fmt, ap);
va_end(ap);
return ret;
}