58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* ser2net - A program for allowing telnet connection to serial ports
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* Copyright (C) 2001 Corey Minyard <minyard@acm.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _SER2NET_BUFFER_H
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#define _SER2NET_BUFFER_H
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#include <sys/socket.h>
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struct devio;
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struct sbuf {
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unsigned char *buf;
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unsigned int maxsize;
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unsigned int cursize;
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unsigned int pos;
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};
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int buffer_io_write(struct devio *io, struct sbuf *buf, int *buferr);
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int buffer_sendto(int fd, const struct sockaddr *addr, socklen_t addrlen,
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struct sbuf *buf, int *buferr);
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int buffer_write(int fd, struct sbuf *buf, int *buferr);
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int buffer_output(struct sbuf *buf, unsigned char *data, unsigned int len);
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int buffer_outchar(struct sbuf *buf, unsigned char data);
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int buffer_init(struct sbuf *buf, unsigned char *data, unsigned int datalen);
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#define buffer_left(buf) ((buf)->maxsize - (buf)->cursize)
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#define buffer_cursize(buf) ((buf)->cursize)
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#define buffer_reset(buf) \
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do { \
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(buf)->cursize = 0; \
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(buf)->pos = 0; \
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} while(0)
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#endif /* _SER2NET_BUFFER_H */
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