diff options
Diffstat (limited to 'gdb/xmodem.c')
| -rw-r--r-- | gdb/xmodem.c | 61 |
1 files changed, 31 insertions, 30 deletions
diff --git a/gdb/xmodem.c b/gdb/xmodem.c index d4faa42db3f..8257ea806bf 100644 --- a/gdb/xmodem.c +++ b/gdb/xmodem.c @@ -1,21 +1,22 @@ /* XMODEM support for GDB, the GNU debugger. Copyright 1995 Free Software Foundation, Inc. -This file is part of GDB. + This file is part of GDB. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ #include "defs.h" #include "serial.h" @@ -87,7 +88,7 @@ crcinit () crc ^= CRC16; } - crctab [val] = crc; + crctab[val] = crc; } crctab_inited = 1; @@ -103,7 +104,7 @@ docrc (p, len) unsigned short crc = 0; while (len-- > 0) - crc = (crc << 8) ^ crctab [(crc >> 8) ^ *p++]; + crc = (crc << 8) ^ crctab[(crc >> 8) ^ *p++]; return crc; } @@ -144,17 +145,17 @@ xmodem_init_xfer (desc) } /* Take 128 bytes of data and make a packet out of it. - * - * Each packet looks like this: - * +-----+-------+-------+------+-----+ - * | SOH | Seq1. | Seq2. | data | SUM | - * +-----+-------+-------+------+-----+ - * SOH = 0x01 - * Seq1 = The sequence number. - * Seq2 = The complement of the sequence number. - * Data = A 128 bytes of data. - * SUM = Add the contents of the 128 bytes and use the low-order - * 8 bits of the result. + + * Each packet looks like this: + * +-----+-------+-------+------+-----+ + * | SOH | Seq1. | Seq2. | data | SUM | + * +-----+-------+-------+------+-----+ + * SOH = 0x01 + * Seq1 = The sequence number. + * Seq2 = The complement of the sequence number. + * Data = A 128 bytes of data. + * SUM = Add the contents of the 128 bytes and use the low-order + * 8 bits of the result. * * send_xmodem_packet fills in the XMODEM fields of PACKET and sends it to the * remote system. PACKET must be XMODEM_PACKETSIZE bytes long. The data must @@ -174,14 +175,14 @@ xmodem_send_packet (desc, packet, len, hashmark) int retries; int pktlen; int datasize; - + /* build the packet header */ packet[1] = blknum; packet[2] = ~blknum; blknum++; - + if (len <= XMODEM_DATASIZE) { packet[0] = SOH; @@ -217,7 +218,7 @@ xmodem_send_packet (desc, packet, len, hashmark) for (i = 3; i < datasize + 3; i++) sum += packet[i]; - packet[3 + datasize] = sum; /* add the checksum */ + packet[3 + datasize] = sum; /* add the checksum */ pktlen = datasize + 4; } @@ -246,7 +247,7 @@ xmodem_send_packet (desc, packet, len, hashmark) } } - SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */ + SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */ error ("xmodem_send_packet: Excessive retries."); } @@ -263,7 +264,7 @@ xmodem_finish_xfer (desc) { int c; - SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */ + SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */ c = readchar (desc, 3); switch (c) |