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/*
* libwebsockets - small server side websockets and web server implementation
*
* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
*
* 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.
*/
#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#endif
#include "private-lib-core.h"
int lws_plat_apply_FD_CLOEXEC(int n)
{
return 0;
}
lws_fop_fd_t
_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
const char *vpath, lws_fop_flags_t *flags)
{
HANDLE ret;
WCHAR buf[MAX_PATH];
lws_fop_fd_t fop_fd;
LARGE_INTEGER llFileSize = {0};
MultiByteToWideChar(CP_UTF8, 0, filename, -1, buf, LWS_ARRAY_SIZE(buf));
if (((*flags) & 7) == _O_RDONLY)
ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
else
ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (ret == INVALID_HANDLE_VALUE)
goto bail;
fop_fd = malloc(sizeof(*fop_fd));
if (!fop_fd)
goto bail;
fop_fd->fops = fops;
#if defined(__MINGW32__)
/* we use filesystem_priv */
fop_fd->fd = (int)(intptr_t)ret;
#else
fop_fd->fd = ret;
#endif
fop_fd->filesystem_priv = ret;
fop_fd->flags = *flags;
fop_fd->len = GetFileSize(ret, NULL);
if(GetFileSizeEx(ret, &llFileSize))
fop_fd->len = llFileSize.QuadPart;
fop_fd->pos = 0;
return fop_fd;
bail:
return NULL;
}
int
_lws_plat_file_close(lws_fop_fd_t *fop_fd)
{
HANDLE fd = (*fop_fd)->filesystem_priv;
free(*fop_fd);
*fop_fd = NULL;
CloseHandle((HANDLE)fd);
return 0;
}
lws_fileofs_t
_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
{
LARGE_INTEGER l;
l.QuadPart = offset;
if (!SetFilePointerEx((HANDLE)fop_fd->filesystem_priv, l, NULL, FILE_CURRENT))
{
lwsl_err("error seeking from cur %ld, offset %ld\n", (long)fop_fd->pos, (long)offset);
return -1;
}
LARGE_INTEGER zero;
zero.QuadPart = 0;
LARGE_INTEGER newPos;
if (!SetFilePointerEx((HANDLE)fop_fd->filesystem_priv, zero, &newPos, FILE_CURRENT))
{
lwsl_err("error seeking from cur %ld, offset %ld\n", (long)fop_fd->pos, (long)offset);
return -1;
}
fop_fd->pos = newPos.QuadPart;
return newPos.QuadPart;
}
int
_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
uint8_t *buf, lws_filepos_t len)
{
DWORD _amount;
if (!ReadFile((HANDLE)fop_fd->filesystem_priv, buf, (DWORD)len, &_amount, NULL)) {
*amount = 0;
return 1;
}
fop_fd->pos += _amount;
*amount = (unsigned long)_amount;
return 0;
}
int
_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
uint8_t* buf, lws_filepos_t len)
{
DWORD _amount;
if (!WriteFile((HANDLE)fop_fd->filesystem_priv, buf, (DWORD)len, &_amount, NULL)) {
*amount = 0;
return 1;
}
fop_fd->pos += _amount;
*amount = (unsigned long)_amount;
return 0;
}
int
lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
size_t len)
{
int n;
n = (int)write(fd, buf, (unsigned int)len);
lseek(fd, 0, SEEK_SET);
return (size_t)n != len;
}
int
lws_plat_write_file(const char *filename, void *buf, size_t len)
{
int m, fd;
fd = lws_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
if (fd == -1)
return -1;
m = (int)write(fd, buf, (unsigned int)len);
close(fd);
return (size_t)m != len;
}
int
lws_plat_read_file(const char *filename, void *buf, size_t len)
{
int n, fd = lws_open(filename, O_RDONLY);
if (fd == -1)
return -1;
n = (int)read(fd, buf, (unsigned int)len);
close(fd);
return n;
}
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