[mirror_frr.git] / lib / network.h

/*
 * Network library header.
 * Copyright (C) 1998 Kunihiro Ishiguro
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra 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, or (at your option) any
 * later version.
 *
 * GNU Zebra 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; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _ZEBRA_NETWORK_H
#define _ZEBRA_NETWORK_H

#ifdef __cplusplus
extern "C" {
#endif

/* Both readn and writen are deprecated and will be removed.  They are not
   suitable for use with non-blocking file descriptors.
 */
extern int readn(int, uint8_t *, int);
extern int writen(int, const uint8_t *, int);

/* Set the file descriptor to use non-blocking I/O.  Returns 0 for success,
   -1 on error. */
extern int set_nonblocking(int fd);

extern int set_cloexec(int fd);

/* Does the I/O error indicate that the operation should be retried later? */
#define ERRNO_IO_RETRY(EN)                                                     \
	(((EN) == EAGAIN) || ((EN) == EWOULDBLOCK) || ((EN) == EINTR))

extern float htonf(float);
extern float ntohf(float);

#ifdef __cplusplus
}
#endif

#endif /* _ZEBRA_NETWORK_H */
Commit	Line	Data
	1	/*
	2	* Network library header.
	3	* Copyright (C) 1998 Kunihiro Ishiguro
	4	*
	5	* This file is part of GNU Zebra.
	6	*
	7	* GNU Zebra is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2, or (at your option) any
	10	* later version.
	11	*
	12	* GNU Zebra is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License along
	18	* with this program; see the file COPYING; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	#ifndef _ZEBRA_NETWORK_H
	23	#define _ZEBRA_NETWORK_H
	24
	25	#ifdef __cplusplus
	26	extern "C" {
	27	#endif
	28
	29	/* Both readn and writen are deprecated and will be removed. They are not
	30	suitable for use with non-blocking file descriptors.
	31	*/
	32	extern int readn(int, uint8_t *, int);
	33	extern int writen(int, const uint8_t *, int);
	34
	35	/* Set the file descriptor to use non-blocking I/O. Returns 0 for success,
	36	-1 on error. */
	37	extern int set_nonblocking(int fd);
	38
	39	extern int set_cloexec(int fd);
	40
	41	/* Does the I/O error indicate that the operation should be retried later? */
	42	#define ERRNO_IO_RETRY(EN) \
	43	(((EN) == EAGAIN) \|\| ((EN) == EWOULDBLOCK) \|\| ((EN) == EINTR))
	44
	45	extern float htonf(float);
	46	extern float ntohf(float);
	47
	48	#ifdef __cplusplus
	49	}
	50	#endif
	51
	52	#endif /* _ZEBRA_NETWORK_H */