| /* ----------------------------------------------------------------------- * |
| * |
| * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved |
| * |
| * 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. |
| * |
| * ----------------------------------------------------------------------- */ |
| |
| /* |
| * xserial_write.c |
| * |
| * Raw writing to the serial port; \n -> \r\n translation, and |
| * convert \1# sequences. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <com32.h> |
| #include <core.h> |
| #include <minmax.h> |
| #include <colortbl.h> |
| #include <syslinux/config.h> |
| #include "file.h" |
| |
| static void emit(char ch) |
| { |
| write_serial(ch); |
| } |
| |
| ssize_t __xserial_write(struct file_info *fp, const void *buf, size_t count) |
| { |
| const char *bufp = buf; |
| size_t n = 0; |
| static enum { st_init, st_tbl, st_tblc } state = st_init; |
| static int ndigits; |
| static int ncolor = 0; |
| int num; |
| const char *p; |
| |
| (void)fp; |
| |
| if (!syslinux_serial_console_info()->iobase) |
| return count; /* Nothing to do */ |
| |
| while (count--) { |
| unsigned char ch = *bufp++; |
| |
| switch (state) { |
| case st_init: |
| if (ch >= 1 && ch <= 5) { |
| state = st_tbl; |
| ndigits = ch; |
| } else if (ch == '\n') { |
| emit('\r'); |
| emit('\n'); |
| } else { |
| emit(ch); |
| } |
| break; |
| |
| case st_tbl: |
| if (ch == '#') { |
| state = st_tblc; |
| ncolor = 0; |
| } else { |
| state = st_init; |
| } |
| break; |
| |
| case st_tblc: |
| num = ch - '0'; |
| if (num < 10) { |
| ncolor = (ncolor * 10) + num; |
| if (--ndigits == 0) { |
| if (ncolor < console_color_table_size) { |
| emit('\033'); |
| emit('['); |
| emit('0'); |
| emit(';'); |
| for (p = console_color_table[ncolor].ansi; *p; p++) |
| emit(*p); |
| emit('m'); |
| } |
| state = st_init; |
| } |
| } else { |
| state = st_init; |
| } |
| break; |
| } |
| n++; |
| } |
| |
| return n; |
| } |