-"""
- NEPI, a framework to manage network experiments
- Copyright (C) 2013 INRIA
-
- This program 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 3 of the License, or
- (at your option) any later version.
+#
+# NEPI, a framework to manage network experiments
+# Copyright (C) 2013 INRIA
+#
+# 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;
+#
+# This program 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. If not, see <http://www.gnu.org/licenses/>.
+#
+# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
+# Martin Ferrari <martin.ferrari@inria.fr>
- This program 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. If not, see <http://www.gnu.org/licenses/>.
-
-"""
import ctypes
import imp
try:
os.stat(d + "/" + name)
return d + "/" + name
- except OSError, e:
+ except OSError as e:
if e.errno != os.errno.ENOENT:
raise
return None
try:
os.stat(d + "/" + name)
return d + "/" + name
- except OSError, e:
+ except OSError as e:
if e.errno != os.errno.ENOENT:
raise
return None
def execute(cmd):
# FIXME: create a global debug variable
#print "[pid %d]" % os.getpid(), " ".join(cmd)
- null = open("/dev/null", "r+")
- p = subprocess.Popen(cmd, stdout = null, stderr = subprocess.PIPE)
- out, err = p.communicate()
- if p.returncode != 0:
- raise RuntimeError("Error executing `%s': %s" % (" ".join(cmd), err))
+ with open("/dev/null", "r+") as null:
+ p = subprocess.Popen(cmd, stdout = null, stderr = subprocess.PIPE)
+ out, err = p.communicate()
+ if p.returncode != 0:
+ raise RuntimeError("Error executing `%s': %s" % (" ".join(cmd), err))
def backticks(cmd):
p = subprocess.Popen(cmd, stdout = subprocess.PIPE,
def add_key_to_agent(filename):
ssh_add = nepi.util.environ.find_bin_or_die("ssh-add")
args = [ssh_add, filename]
- null = file("/dev/null", "w")
- assert subprocess.Popen(args, stderr = null).wait() == 0
- null.close()
+ with open("/dev/null", "w") as null:
+ assert subprocess.Popen(args, stderr = null).wait() == 0
def get_free_port():
s = socket.socket()
"""
def gen_sshd_config(filename, port, server_key, auth_keys):
- conf = open(filename, "w")
- text = _SSH_CONF % (port, server_key, auth_keys)
- conf.write(text)
- conf.close()
+ with open(filename, "w") as conf:
+ text = _SSH_CONF % (port, server_key, auth_keys)
+ conf.write(text)
return filename
def gen_auth_keys(pubkey, output, environ):
for k, v in environ.items():
opts.append('environment="%s=%s"' % (k, v))
- lines = file(pubkey).readlines()
+ with open(pubkey) as f:
+ lines = f.readlines()
pubkey = lines[0].split()[0:2]
- out = file(output, "w")
- out.write("%s %s %s\n" % (",".join(opts), pubkey[0], pubkey[1]))
- out.close()
+ with open(output, "w") as out:
+ out.write("%s %s %s\n" % (",".join(opts), pubkey[0], pubkey[1]))
return output
def start_ssh_agent():
# No need to gather the pid, ssh-agent knows how to kill itself; after we
# had set up the environment
ssh_agent = nepi.util.environ.find_bin_or_die("ssh-agent")
- null = file("/dev/null", "w")
- proc = subprocess.Popen([ssh_agent, "-k"], stdout = null)
- null.close()
- assert proc.wait() == 0
+ with open("/dev/null", "w") as null:
+ proc = subprocess.Popen([ssh_agent, "-k"], stdout = null)
+ assert proc.wait() == 0
for k in data:
del os.environ[k]