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/*
RFCOMMd - RFCOMM daemon.
Copyright (C) 2001 Qualcomm Incorporated
Written 2001 by Maxim Krasnyansky <maxk@qualcomm.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation;
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 OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM,
OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
USE OR PERFORMANCE OF THIS SOFTWARE.
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS,
TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED.
*/
/*
* $Id$
*/
#ifndef _DUND_LIB_H
#define _DUND_LIB_H
#include <sys/types.h>
#include <errno.h>
#include <signal.h>
#ifndef min
#define min(a,b) ( (a)<(b) ? (a):(b) )
#endif
/* IO cancelation */
extern volatile sig_atomic_t __io_canceled;
static inline void io_init(void)
{
__io_canceled = 0;
}
static inline void io_cancel(void)
{
__io_canceled = 1;
}
/* Read exactly len bytes (Signal safe)*/
static inline int read_n(int fd, char *buf, int len)
{
register int t = 0, w;
while (!__io_canceled && len > 0) {
if ((w = read(fd, buf, len)) < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!w)
return 0;
len -= w;
buf += w;
t += w;
}
return t;
}
/* Write exactly len bytes (Signal safe)*/
static inline int write_n(int fd, char *buf, int len)
{
register int t = 0, w;
while (!__io_canceled && len > 0) {
if ((w = write(fd, buf, len)) < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!w)
return 0;
len -= w;
buf += w;
t += w;
}
return t;
}
int ms_dun(int fd, int server, int timeo);
#endif /* _DUND_LIB_H */
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