185 lines
3.9 KiB
C
185 lines
3.9 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
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#define _WINSOCK_DEPRECATED_NO_WARNINGS
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#endif
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#include "core/private.h"
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int lws_plat_apply_FD_CLOEXEC(int n)
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{
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return 0;
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}
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lws_fop_fd_t
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_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
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const char *vpath, lws_fop_flags_t *flags)
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{
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HANDLE ret;
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WCHAR buf[MAX_PATH];
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lws_fop_fd_t fop_fd;
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FILE_STANDARD_INFO fInfo = {0};
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MultiByteToWideChar(CP_UTF8, 0, filename, -1, buf, LWS_ARRAY_SIZE(buf));
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#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0602 // Windows 8 (minimum when UWP_ENABLED, but can be used in Windows builds)
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CREATEFILE2_EXTENDED_PARAMETERS extParams = {0};
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extParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
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if (((*flags) & 7) == _O_RDONLY) {
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ret = CreateFile2(buf, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, &extParams);
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} else {
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ret = CreateFile2(buf, GENERIC_WRITE, 0, CREATE_ALWAYS, &extParams);
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}
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#else
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if (((*flags) & 7) == _O_RDONLY) {
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ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ,
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NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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} else {
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ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL,
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CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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}
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#endif
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if (ret == LWS_INVALID_FILE)
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goto bail;
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fop_fd = malloc(sizeof(*fop_fd));
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if (!fop_fd)
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goto bail;
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fop_fd->fops = fops;
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fop_fd->fd = ret;
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fop_fd->filesystem_priv = NULL; /* we don't use it */
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fop_fd->flags = *flags;
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fop_fd->len = 0;
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if(GetFileInformationByHandleEx(ret, FileStandardInfo, &fInfo, sizeof(fInfo)))
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fop_fd->len = fInfo.EndOfFile.QuadPart;
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fop_fd->pos = 0;
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return fop_fd;
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bail:
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return NULL;
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}
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int
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_lws_plat_file_close(lws_fop_fd_t *fop_fd)
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{
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HANDLE fd = (*fop_fd)->fd;
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free(*fop_fd);
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*fop_fd = NULL;
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CloseHandle((HANDLE)fd);
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return 0;
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}
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lws_fileofs_t
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_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
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{
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LARGE_INTEGER l;
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l.QuadPart = offset;
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return SetFilePointerEx((HANDLE)fop_fd->fd, l, NULL, FILE_CURRENT);
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}
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int
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_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
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uint8_t *buf, lws_filepos_t len)
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{
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DWORD _amount;
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if (!ReadFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
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*amount = 0;
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return 1;
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}
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fop_fd->pos += _amount;
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*amount = (unsigned long)_amount;
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return 0;
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}
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int
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_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
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uint8_t* buf, lws_filepos_t len)
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{
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DWORD _amount;
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if (!WriteFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
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*amount = 0;
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return 1;
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}
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fop_fd->pos += _amount;
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*amount = (unsigned long)_amount;
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return 0;
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}
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int
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lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
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int len)
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{
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int n;
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n = write(fd, buf, len);
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lseek(fd, 0, SEEK_SET);
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return n != len;
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}
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int
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lws_plat_write_file(const char *filename, void *buf, int len)
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{
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int m, fd;
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fd = lws_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
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if (fd == -1)
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return -1;
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m = write(fd, buf, len);
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close(fd);
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return m != len;
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}
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int
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lws_plat_read_file(const char *filename, void *buf, int len)
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{
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int n, fd = lws_open(filename, O_RDONLY);
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if (fd == -1)
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return -1;
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n = read(fd, buf, len);
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close(fd);
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return n;
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}
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