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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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66
libc/x/makedirs.c
View file

@ -1,66 +0,0 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/errno.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
#include "libc/x/x.h"
static int MakeDirs(const char *path, unsigned mode, int e) {
int rc;
char *dir;
if (!mkdir(path, mode) || errno == EEXIST) {
errno = e;
return 0;
}
if (errno != ENOENT) {
return -1;
}
dir = xdirname(path);
if (strcmp(dir, path)) {
rc = MakeDirs(dir, mode, e);
} else {
rc = -1;
}
free(dir);
if (rc == -1) return -1;
errno = e;
if (!mkdir(path, mode) || errno == EEXIST) {
errno = e;
return 0;
} else {
return -1;
}
}
/**
* Recursively creates directory a.k.a. folder.
*
* This function won't fail if the directory already exists.
*
* @param path is a UTF-8 string, preferably relative w/ forward slashes
* @param mode can be, for example, 0755
* @return 0 on success or -1 w/ errno
* @threadsafe
*/
int makedirs(const char *path, unsigned mode) {
return MakeDirs(path, mode, errno);
}

1
libc/x/x.h
View file

@ -52,7 +52,6 @@ void *xload(bool *, void **, const void *, size_t, size_t);
void *xloadzd(bool *, void **, const void *, size_t, size_t, size_t, size_t,
uint32_t);
int rmrf(const char *);
int makedirs(const char *, unsigned);
char *xbasename(const char *) paramsnonnull()
returnspointerwithnoaliases dontthrow nocallback dontdiscard returnsnonnull;
char *xdirname(const char *) paramsnonnull()