Python os.O_SYNC() Examples

The following are code examples for showing how to use os.O_SYNC(). They are extracted from open source Python projects. You can vote up the examples you like or vote down the ones you don't like. You can also save this page to your account.

Example 1
Project: kAFL   Author: RUB-SysSec   File: master.py    (GNU General Public License v2.0) View Source Project 8 votes vote down vote up
def wipe(self):
    	filter_bitmap_fd = os.open("/dev/shm/kafl_filter0", os.O_RDWR | os.O_SYNC | os.O_CREAT)
        os.ftruncate(filter_bitmap_fd, self.config.config_values['BITMAP_SHM_SIZE'])
        filter_bitmap = mmap.mmap(filter_bitmap_fd, self.config.config_values['BITMAP_SHM_SIZE'], mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)
        for i in range(self.config.config_values['BITMAP_SHM_SIZE']):
        	filter_bitmap[i] = '\x00'
        filter_bitmap.close()
        os.close(filter_bitmap_fd)

        filter_bitmap_fd = os.open("/dev/shm/kafl_tfilter", os.O_RDWR | os.O_SYNC | os.O_CREAT)
        os.ftruncate(filter_bitmap_fd, 0x1000000)
        filter_bitmap = mmap.mmap(filter_bitmap_fd, 0x1000000, mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)
        for i in range(0x1000000):
        	filter_bitmap[i] = '\x00'
        filter_bitmap.close()
        os.close(filter_bitmap_fd) 
Example 2
Project: kinect-2-libras   Author: inessadl   File: posixfile.py    (Apache License 2.0) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 3
Project: kAFL   Author: RUB-SysSec   File: communicator.py    (GNU General Public License v2.0) View Source Project 5 votes vote down vote up
def create_shm(self):
        for j in range(len(self.files)):
            for i in range(self.num_processes):
                shm_f = os.open(self.files[j]+str(i), os.O_CREAT | os.O_RDWR | os.O_SYNC)
                os.ftruncate(shm_f, self.sizes[j]*self.tasks_per_requests)
                os.close(shm_f) 
Example 4
Project: kAFL   Author: RUB-SysSec   File: communicator.py    (GNU General Public License v2.0) View Source Project 5 votes vote down vote up
def __get_shm(self, type_id, slave_id):
        if slave_id in self.tmp_shm[type_id]:
            shm = self.tmp_shm[type_id][slave_id]
        else:
            shm_fd = os.open(self.files[type_id] + str(slave_id), os.O_RDWR | os.O_SYNC)
            shm = mmap.mmap(shm_fd, self.sizes[type_id]*self.tasks_per_requests, mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)
            self.tmp_shm[type_id][slave_id] = shm
        return shm 
Example 5
Project: kAFL   Author: RUB-SysSec   File: qemu.py    (GNU General Public License v2.0) View Source Project 5 votes vote down vote up
def __set_binary(self, filename, binaryfile, max_size):
        shm_fd = os.open(filename, os.O_RDWR | os.O_SYNC | os.O_CREAT)
        os.ftruncate(shm_fd, max_size)
        shm = mmap.mmap(shm_fd, max_size, mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)
        shm.seek(0x0)
        shm.write('\x00' * max_size)
        shm.seek(0x0)

        f = open(binaryfile, "rb")
        bytes = f.read(1024)
        if bytes:
            shm.write(bytes)
        while bytes != "":
            bytes = f.read(1024)
            if bytes:
                shm.write(bytes)

        f.close()
        shm.close()
        os.close(shm_fd) 
Example 6
Project: kAFL   Author: RUB-SysSec   File: qemu.py    (GNU General Public License v2.0) View Source Project 5 votes vote down vote up
def init(self):
        self.control = socket.socket(socket.AF_UNIX)
        while True:
            try:
                self.control.connect(self.control_filename)
                #self.control.connect(self.control_filename)
                break
            except socket_error:
                pass
                #time.sleep(0.01)

        self.kafl_shm_f     = os.open(self.bitmap_filename, os.O_RDWR | os.O_SYNC | os.O_CREAT)
        self.fs_shm_f       = os.open(self.payload_filename, os.O_RDWR | os.O_SYNC | os.O_CREAT)
        #argv_fd             = os.open(self.argv_filename, os.O_RDWR | os.O_SYNC | os.O_CREAT)
        os.ftruncate(self.kafl_shm_f, self.bitmap_size)
        os.ftruncate(self.fs_shm_f, (128 << 10))
        #os.ftruncate(argv_fd, (4 << 10))

        self.kafl_shm       = mmap.mmap(self.kafl_shm_f, self.bitmap_size, mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)
        self.fs_shm         = mmap.mmap(self.fs_shm_f, (128 << 10),  mmap.MAP_SHARED, mmap.PROT_WRITE | mmap.PROT_READ)

        return True 
Example 7
Project: hostapd-mana   Author: adde88   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 8
Project: oil   Author: oilshell   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 9
Project: python2-tracer   Author: extremecoders-re   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 10
Project: sslstrip-hsts-openwrt   Author: adde88   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 11
Project: pefile.pypy   Author: cloudtracer   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 12
Project: ndk-python   Author: gittor   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 13
Project: PyCNC   Author: Nikolay-Kha   File: ads111x.py    (license) View Source Project 5 votes vote down vote up
def __init__(self):
        self._os_close = os.close
        # Initialize i2c interface and register it for closing on exit.
        self._dev = os.open("/dev/i2c-1", os.O_SYNC | os.O_RDWR)
        if self._dev < 0:
            raise ImportError("i2c device not found")
        else:
            if fcntl.ioctl(self._dev, I2C_SLAVE, ADS111x_ADDRESS) < 0:
                self._close()
                raise ImportError("Failed to set up i2c address")
            else:
                atexit.register(self._close) 
Example 14
Project: PyCNC   Author: Nikolay-Kha   File: rpgpio_private.py    (license) View Source Project 5 votes vote down vote up
def _open_dev(name):
        fd = os.open(name, os.O_SYNC | os.O_RDWR)
        if fd < 0:
            raise IOError("Failed to open " + name)
        return fd 
Example 15
Project: empyrion-python-api   Author: huhlig   File: posixfile.py    (license) View Source Project 5 votes vote down vote up
def flags(self, *which):
        import fcntl, os

        if which:
            if len(which) > 1:
                raise TypeError, 'Too many arguments'
            which = which[0]
        else: which = '?'

        l_flags = 0
        if 'n' in which: l_flags = l_flags | os.O_NDELAY
        if 'a' in which: l_flags = l_flags | os.O_APPEND
        if 's' in which: l_flags = l_flags | os.O_SYNC

        file = self._file_

        if '=' not in which:
            cur_fl = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if '!' in which: l_flags = cur_fl & ~ l_flags
            else: l_flags = cur_fl | l_flags

        l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFL, l_flags)

        if 'c' in which:
            arg = ('!' not in which)    # 0 is don't, 1 is do close on exec
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_SETFD, arg)

        if '?' in which:
            which = ''                  # Return current flags
            l_flags = fcntl.fcntl(file.fileno(), fcntl.F_GETFL, 0)
            if os.O_APPEND & l_flags: which = which + 'a'
            if fcntl.fcntl(file.fileno(), fcntl.F_GETFD, 0) & 1:
                which = which + 'c'
            if os.O_NDELAY & l_flags: which = which + 'n'
            if os.O_SYNC & l_flags: which = which + 's'
            return which 
Example 16
Project: NFStest   Author: thombashi   File: test_util.py    (license) View Source Project 5 votes vote down vote up
def open_files(self, mode, create=True):
        """Open files according to given mode, the file descriptors are saved
           internally to be used with write_files(), read_files() and
           close_files(). The number of files to open is controlled by
           the command line option '--nfiles'.

           The mode could be either 'r' or 'w' for opening files for reading
           or writing respectively. The open flags for mode 'r' is O_RDONLY
           while for mode 'w' is O_WRONLY|O_CREAT|O_SYNC. The O_SYNC is used
           to avoid the client buffering the written data.
        """
        for i in range(self.nfiles):
            if mode[0] == 'r':
                file = self.abspath(self.files[i])
                self.dprint('DBG3', "Open file for reading: %s" % file)
                fd = os.open(file, os.O_RDONLY)
                self.rfds.append(fd)
                self.lock_type = fcntl.F_RDLCK
            elif mode[0] == 'w':
                if create:
                    self.get_filename()
                    file = self.absfile
                else:
                    file = self.abspath(self.files[i])
                self.dprint('DBG3', "Open file for writing: %s" % file)
                # Open file with O_SYNC to avoid client buffering the write requests
                fd = os.open(file, os.O_WRONLY|os.O_CREAT|os.O_SYNC)
                self.wfds.append(fd)
                self.lock_type = fcntl.F_WRLCK