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- /* Copyright (C) 2010-2018 The RetroArch team
- *
- * ---------------------------------------------------------------------------------------
- * The following license statement only applies to this file (file_stream_transforms.c).
- * ---------------------------------------------------------------------------------------
- *
- * 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.
- */
- #include <string.h>
- #include <stdarg.h>
- #include <libretro.h>
- #include <streams/file_stream.h>
- RFILE* rfopen(const char *path, const char *mode)
- {
- RFILE *output = NULL;
- unsigned int retro_mode = RETRO_VFS_FILE_ACCESS_READ;
- bool position_to_end = false;
- if (strstr(mode, "r"))
- {
- retro_mode = RETRO_VFS_FILE_ACCESS_READ;
- if (strstr(mode, "+"))
- {
- retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE |
- RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
- }
- }
- else if (strstr(mode, "w"))
- {
- retro_mode = RETRO_VFS_FILE_ACCESS_WRITE;
- if (strstr(mode, "+"))
- retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE;
- }
- else if (strstr(mode, "a"))
- {
- retro_mode = RETRO_VFS_FILE_ACCESS_WRITE |
- RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
- position_to_end = true;
- if (strstr(mode, "+"))
- {
- retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE |
- RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
- }
- }
- output = filestream_open(path, retro_mode,
- RETRO_VFS_FILE_ACCESS_HINT_NONE);
- if (output && position_to_end)
- filestream_seek(output, 0, RETRO_VFS_SEEK_POSITION_END);
- return output;
- }
- int rfclose(RFILE* stream)
- {
- return filestream_close(stream);
- }
- int64_t rftell(RFILE* stream)
- {
- return filestream_tell(stream);
- }
- int64_t rfseek(RFILE* stream, int64_t offset, int origin)
- {
- int seek_position = -1;
- switch (origin)
- {
- case SEEK_SET:
- seek_position = RETRO_VFS_SEEK_POSITION_START;
- break;
- case SEEK_CUR:
- seek_position = RETRO_VFS_SEEK_POSITION_CURRENT;
- break;
- case SEEK_END:
- seek_position = RETRO_VFS_SEEK_POSITION_END;
- break;
- }
- return filestream_seek(stream, offset, seek_position);
- }
- int64_t rfread(void* buffer,
- size_t elem_size, size_t elem_count, RFILE* stream)
- {
- return (filestream_read(stream, buffer, elem_size * elem_count) / elem_size);
- }
- char *rfgets(char *buffer, int maxCount, RFILE* stream)
- {
- return filestream_gets(stream, buffer, maxCount);
- }
- int rfgetc(RFILE* stream)
- {
- return filestream_getc(stream);
- }
- int64_t rfwrite(void const* buffer,
- size_t elem_size, size_t elem_count, RFILE* stream)
- {
- return filestream_write(stream, buffer, elem_size * elem_count);
- }
- int rfputc(int character, RFILE * stream)
- {
- return filestream_putc(stream, character);
- }
- int64_t rfflush(RFILE * stream)
- {
- return filestream_flush(stream);
- }
- int rfprintf(RFILE * stream, const char * format, ...)
- {
- int result;
- va_list vl;
- va_start(vl, format);
- result = filestream_vprintf(stream, format, vl);
- va_end(vl);
- return result;
- }
- int rferror(RFILE* stream)
- {
- return filestream_error(stream);
- }
- int rfeof(RFILE* stream)
- {
- return filestream_eof(stream);
- }
- int rfscanf(RFILE * stream, const char * format, ...)
- {
- int result;
- va_list vl;
- va_start(vl, format);
- result = filestream_scanf(stream, format, vl);
- va_end(vl);
- return result;
- }
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