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authorMarcel Holtmann <marcel@holtmann.org>2004-04-25 22:03:05 +0000
committerMarcel Holtmann <marcel@holtmann.org>2004-04-25 22:03:05 +0000
commitbc4cb70ddb8fe59d8b097a62029b0f24849163a3 (patch)
tree0927b88a57f9c94dbbdb0a543dea1478fe0d36e8 /dund/lib.h
parent965c347ab154fd36ca98cd1fd29b048068d70dab (diff)
Add the dund utility
Diffstat (limited to 'dund/lib.h')
-rw-r--r--dund/lib.h95
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 */