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/* system-posix.c - System support functions.
* Copyright (C) 2009, 2010 Free Software Foundation, Inc.
*
* This file is part of Assuan.
*
* Assuan is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Assuan 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
/* Solaris 8 needs sys/types.h before time.h. */
#include <sys/types.h>
#include <time.h>
#include <fcntl.h>
#include <sys/wait.h>
#ifdef HAVE_GETRLIMIT
# include <sys/time.h>
# include <sys/resource.h>
#endif /*HAVE_GETRLIMIT*/
#if __linux__
# include <dirent.h>
#endif /*__linux__ */
#include "assuan-defs.h"
#include "debug.h"
assuan_fd_t
assuan_fdopen (int fd)
{
return dup (fd);
}
/* Sleep for the given number of microseconds. Default
implementation. */
void
__assuan_usleep (assuan_context_t ctx, unsigned int usec)
{
if (! usec)
return;
#ifdef HAVE_NANOSLEEP
{
struct timespec req;
struct timespec rem;
req.tv_sec = usec / 1000000;
req.tv_nsec = (usec % 1000000) * 1000;
while (nanosleep (&req, &rem) < 0 && errno == EINTR)
req = rem;
}
#else
{
struct timeval tv;
tv.tv_sec = usec / 1000000;
tv.tv_usec = usec % 1000000;
select (0, NULL, NULL, NULL, &tv);
}
#endif
}
/* Close the given file descriptor, created with _assuan_pipe or one
of the socket functions. Easy for Posix. */
int
__assuan_close (assuan_context_t ctx, assuan_fd_t fd)
{
return close (fd);
}
ssize_t
__assuan_read (assuan_context_t ctx, assuan_fd_t fd, void *buffer, size_t size)
{
return read (fd, buffer, size);
}
ssize_t
__assuan_write (assuan_context_t ctx, assuan_fd_t fd, const void *buffer,
size_t size)
{
return write (fd, buffer, size);
}
int
__assuan_recvmsg (assuan_context_t ctx, assuan_fd_t fd, assuan_msghdr_t msg,
int flags)
{
int ret;
do
ret = recvmsg (fd, msg, flags);
while (ret == -1 && errno == EINTR);
return ret;
}
int
__assuan_sendmsg (assuan_context_t ctx, assuan_fd_t fd, assuan_msghdr_t msg,
int flags)
{
int ret;
do
ret = sendmsg (fd, msg, flags);
while (ret == -1 && errno == EINTR);
return ret;
}
int
__assuan_socketpair (assuan_context_t ctx, int namespace, int style,
int protocol, assuan_fd_t filedes[2])
{
return socketpair (namespace, style, protocol, filedes);
}
int
__assuan_socket (assuan_context_t ctx, int namespace, int style, int protocol)
{
return socket (namespace, style, protocol);
}
int
__assuan_connect (assuan_context_t ctx, int sock, struct sockaddr *addr,
socklen_t length)
{
return connect (sock, addr, length);
}
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