cosmopolitan/libc/stdio/makedirs.c
Justine Tunney b41f91c658
Greatly expand system() shell code features
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().
2022-10-11 21:30:31 -07:00

74 lines
2.9 KiB
C

/*-*- 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/fmt/conv.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
static char *DirName(const char *path) {
char *dirp;
if (!(path = strdup(path))) return 0;
dirp = strdup(dirname(path));
free(path);
return dirp;
}
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;
}
if (!(dir = DirName(path))) {
return -1;
}
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);
}