Add the dund utility

1 files changed, 95 insertions, 0 deletions

diff --git a/dund/lib.h b/dund/lib.h
new file mode 100644
index 00000000..5de0ba0f
--- /dev/null
+++ b/dund/lib.h
@@ -0,0 +1,95 @@
+/* 
+	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 */