cosmopolitan/libc/str/getzipcfilemode.c
Justine Tunney 4a59210008
Introduce #include <cosmo.h> to toolchain users
This change improves the way internal APIs are being hidden behind the
`COSMO` define. The cosmo.h header will take care of defining that, so
that a separate define statement isn't needed. This change also does a
lot more to define which APIs are standard, and which belong to Cosmo.
2023-06-09 18:03:05 -07:00

48 lines
2.4 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/nt/enum/fileflagandattributes.h"
#include "libc/sysv/consts/s.h"
#include "libc/zip.internal.h"
static int ConvertWindowsToUnixMode(int x) {
int m;
if (x & kNtFileAttributeReadonly) {
m = 0444;
} else {
m = 0644;
}
if (x & kNtFileAttributeDirectory) {
m |= S_IFDIR | 0111;
} else {
m |= S_IFREG;
}
return m;
}
/**
* Returns st_mode from ZIP central directory record.
*/
int GetZipCfileMode(const uint8_t *p) {
if (ZIP_CFILE_FILEATTRCOMPAT(p) == kZipOsUnix) {
return ZIP_CFILE_EXTERNALATTRIBUTES(p) >> 16;
} else {
return ConvertWindowsToUnixMode(ZIP_CFILE_EXTERNALATTRIBUTES(p));
}
}