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/*
* <unistd.h> wrapper functions.
*
* Authors:
* Jonathan Pryor (jonpryor@vt.edu)
*
* Copyright (C) 2004 Jonathan Pryor
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif /* ndef _GNU_SOURCE */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <limits.h>
#include <string.h> /* for swab(3) on Mac OS X */
#include "map.h"
#include "mph.h"
G_BEGIN_DECLS
mph_off_t
Mono_Posix_Syscall_lseek (gint32 fd, mph_off_t offset, gint32 whence)
{
short _whence;
mph_return_if_off_t_overflow (offset);
if (Mono_Posix_FromSeekFlags (whence, &_whence) == -1)
return -1;
whence = _whence;
return lseek (fd, offset, whence);
}
mph_ssize_t
Mono_Posix_Syscall_read (gint32 fd, void *buf, mph_size_t count)
{
mph_return_if_size_t_overflow (count);
return read (fd, buf, (size_t) count);
}
mph_ssize_t
Mono_Posix_Syscall_write (gint32 fd, const void *buf, mph_size_t count)
{
mph_return_if_size_t_overflow (count);
return write (fd, buf, (size_t) count);
}
mph_ssize_t
Mono_Posix_Syscall_pread (gint32 fd, void *buf, mph_size_t count, mph_off_t offset)
{
mph_return_if_size_t_overflow (count);
mph_return_if_off_t_overflow (offset);
return pread (fd, buf, (size_t) count, (off_t) offset);
}
mph_ssize_t
Mono_Posix_Syscall_pwrite (gint32 fd, const void *buf, mph_size_t count, mph_off_t offset)
{
mph_return_if_size_t_overflow (count);
mph_return_if_off_t_overflow (offset);
return pwrite (fd, buf, (size_t) count, (off_t) offset);
}
gint32
Mono_Posix_Syscall_pipe (gint32 *reading, gint32 *writing)
{
int filedes[2] = {-1, -1};
int r;
if (reading == NULL || writing == NULL) {
errno = EFAULT;
return -1;
}
r = pipe (filedes);
*reading = filedes[0];
*writing = filedes[1];
return r;
}
char*
Mono_Posix_Syscall_getcwd (char *buf, mph_size_t size)
{
mph_return_val_if_size_t_overflow (size, NULL);
return getcwd (buf, (size_t) size);
}
gint64
Mono_Posix_Syscall_fpathconf (int filedes, int name)
{
if (Mono_Posix_FromPathConf (name, &name) == -1)
return -1;
return fpathconf (filedes, name);
}
gint64
Mono_Posix_Syscall_pathconf (char *path, int name)
{
if (Mono_Posix_FromPathConf (name, &name) == -1)
return -1;
return pathconf (path, name);
}
gint64
Mono_Posix_Syscall_sysconf (int name)
{
if (Mono_Posix_FromSysConf (name, &name) == -1)
return -1;
return sysconf (name);
}
gint64
Mono_Posix_Syscall_confstr (int name, char *buf, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
if (Mono_Posix_FromConfStr (name, &name) == -1)
return -1;
return confstr (name, buf, (size_t) len);
}
#ifdef HAVE_TTYNAME_R
gint32
Mono_Posix_Syscall_ttyname_r (int fd, char *buf, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return ttyname_r (fd, buf, (size_t) len);
}
#endif /* ndef HAVE_TTYNAME_R */
gint32
Mono_Posix_Syscall_readlink (const char *path, char *buf, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return readlink (path, buf, (size_t) len);
}
gint32
Mono_Posix_Syscall_getlogin_r (char *buf, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return getlogin_r (buf, (size_t) len);
}
gint32
Mono_Posix_Syscall_gethostname (char *buf, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return gethostname (buf, (size_t) len);
}
gint32
Mono_Posix_Syscall_sethostname (const char *name, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return sethostname (name, (size_t) len);
}
gint64
Mono_Posix_Syscall_gethostid (void)
{
return gethostid ();
}
gint32
Mono_Posix_Syscall_sethostid (gint64 hostid)
{
mph_return_if_long_overflow (hostid);
#ifdef MPH_ON_BSD
sethostid ((long) hostid);
return 0;
#else
return sethostid ((long) hostid);
#endif
}
gint32
Mono_Posix_Syscall_getdomainname (char *name, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return getdomainname (name, (size_t) len);
}
gint32
Mono_Posix_Syscall_setdomainname (const char *name, mph_size_t len)
{
mph_return_if_size_t_overflow (len);
return setdomainname (name, (size_t) len);
}
gint32
Mono_Posix_Syscall_truncate (const char *path, mph_off_t length)
{
mph_return_if_off_t_overflow (length);
return truncate (path, (off_t) length);
}
gint32
Mono_Posix_Syscall_ftruncate (int fd, mph_off_t length)
{
mph_return_if_off_t_overflow (length);
return ftruncate (fd, (off_t) length);
}
gint32
Mono_Posix_Syscall_lockf (int fd, int cmd, mph_off_t len)
{
mph_return_if_off_t_overflow (len);
if (Mono_Posix_FromLockFlags (cmd, &cmd) == -1)
return -1;
return lockf (fd, cmd, (off_t) len);
}
void
Mono_Posix_Syscall_swab (void *from, void *to, mph_ssize_t n)
{
if (mph_have_long_overflow (n))
return;
swab (from, to, (ssize_t) n);
}
G_END_DECLS
/*
* vim: noexpandtab
*/
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