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-
- import types, os, sys, isys, select, string, stat, signal
-
- def getArch ():
- arch = os.uname ()[4]
- if (len (arch) == 4 and arch[0] == 'i' and
- arch[2:4] == "86"):
- arch = "i386"
-
- if arch == "sparc64":
- arch = "sparc"
-
- return arch
-
- def getfd(filespec, readOnly = 0):
- if type(filespec) == types.IntType:
- return filespec
- if filespec == None:
- filespec = "/dev/null"
-
- flags = os.O_RDWR | os.O_CREAT
- if (readOnly):
- flags = os.O_RDONLY
- return os.open(filespec, flags)
-
- def execWithRedirect(command, argv, stdin = 0, stdout = 1, stderr = 2,
- searchPath = 0, root = '/', newPgrp = 0,
- ignoreTermSigs = 0):
- stdin = getfd(stdin)
- if stdout == stderr:
- stdout = getfd(stdout)
- stderr = stdout
- else:
- stdout = getfd(stdout)
- stderr = getfd(stderr)
-
- if not os.access (root + command, os.X_OK):
- if not os.access (command, os.X_OK):
- raise RuntimeError, command + " can not be run"
- else:
- root = ""
-
- childpid = os.fork()
- if (not childpid):
- if (root and root != '/'): isys.chroot (root)
-
- if ignoreTermSigs:
- signal.signal(signal.SIGTSTP, signal.SIG_IGN)
- signal.signal(signal.SIGINT, signal.SIG_IGN)
-
- if type(stdin) == type("a"):
- stdin == os.open(stdin, os.O_RDONLY)
- if type(stdout) == type("a"):
- stdout == os.open(stdout, os.O_RDWR)
- if type(stderr) == type("a"):
- stderr = os.open(stderr, os.O_RDWR)
-
- if stdin != 0:
- os.dup2(stdin, 0)
- os.close(stdin)
- if stdout != 1:
- os.dup2(stdout, 1)
- if stdout != stderr:
- os.close(stdout)
- if stderr != 2:
- os.dup2(stderr, 2)
- os.close(stderr)
-
- if (searchPath):
- os.execvp(command, argv)
- else:
- os.execv(command, argv)
-
- sys.exit(1)
-
- if newPgrp:
- os.setpgid(childpid, childpid)
- oldPgrp = os.tcgetpgrp(0)
- os.tcsetpgrp(0, childpid)
-
- (pid, status) = os.waitpid(childpid, 0)
-
- if newPgrp:
- os.tcsetpgrp(0, oldPgrp)
-
- return status
-
- def execWithCapture(command, argv, searchPath = 0, root = '/', stdin = 0):
-
- if not os.access (root + command, os.X_OK):
- if not os.access (command, os.X_OK):
- raise RuntimeError, command + " can not be run"
- else:
- root = ""
-
- (read, write) = os.pipe()
-
- childpid = os.fork()
- if (not childpid):
- if (root and root != '/'): isys.chroot (root)
- os.dup2(write, 1)
-
- if stdin:
- os.dup2(stdin, 0)
- os.close(stdin)
-
- if (searchPath):
- os.execvp(command, argv)
- else:
- os.execv(command, argv)
-
- sys.exit(1)
-
- os.close(write)
-
- rc = ""
- s = "1"
- while (s):
- select.select([read], [], [])
- s = os.read(read, 1000)
- rc = rc + s
-
- os.close(read)
-
- os.waitpid(childpid, 0)
-
- return rc
-
- def copyFile(source, to):
- f = os.open(source, os.O_RDONLY)
- t = os.open(to, os.O_RDWR | os.O_TRUNC | os.O_CREAT)
-
- count = os.read(f, 16384)
- while (count):
- os.write(t, count)
- count = os.read(f, 16384)
-
- os.close(f)
- os.close(t)
-
- def memInstalled():
- f = open("/proc/meminfo", "r")
- mem = f.readlines()[1]
- del f
-
- # patch from hjl
- fields = string.split(mem)
- try:
- mem = int(fields[1]) / 1024
- except:
- mem = 2097151
-
- return mem
-
- # this is a mkdir that won't fail if a directory already exists and will
- # happily make all of the directories leading up to it.
- def mkdirChain(dir):
- if (os.path.isdir(dir)): return
- elements = string.splitfields(dir, "/")
-
- if (len(elements[0])):
- which = 1
- path = elements[0]
- else:
- which = 2
- path = "/" + elements[1]
-
- if (not os.path.isdir(path)):
- os.mkdir(path, 0755)
-
- while (which < len(elements)):
- path = path + "/" + elements[which]
- which = which + 1
-
- if (not os.path.isdir(path)):
- os.mkdir(path, 0755)
-
- #
- # get default runlevel - only for use in reconfig mode
- #
- def getDefaultRunlevel ():
- inittab = open ('/etc/inittab', 'r')
- lines = inittab.readlines ()
- inittab.close ()
- for line in lines:
- if len (line) > 3 and line[:3] == "id:":
- fields = string.split (line, ':')
- return fields[1]
-
- return None
-
- def makerelname(relpath, filename):
- if relpath != '':
- return relpath+'/'+filename
- else:
- return filename
-
-
- def findtz(basepath, relpath):
- tzdata = []
- for n in os.listdir(basepath+'/'+relpath):
- timezone = makerelname(relpath, n)
- if relpath != '':
- timezone = relpath+'/'+n
- else:
- timezone = n
-
- filestat = os.lstat(basepath+'/'+timezone)
- [filemode] = filestat[:1]
-
- if (not (stat.S_ISLNK(filemode) or
- stat.S_ISREG(filemode) or
- stat.S_ISDIR(filemode))):
- continue
- elif n[:1] >= 'A' and n[:1] <= 'Z':
- if stat.S_ISDIR(filemode):
- tmptzdata = findtz(basepath, timezone)
- else:
- tmptzdata = [timezone]
-
- for m in tmptzdata:
- if tzdata == []:
- tzdata = [m]
- else:
- tzdata.append(m)
-
- tzdata.sort()
-
- return tzdata
-
- def rmrf (path):
- # this is only the very simple case.
- files = os.listdir (path)
- for file in files:
- if os.path.isdir(path + '/' + file):
- rmrf (path + '/' + file)
- else:
- os.unlink (path + '/' + file)
- os.rmdir (path)
-
- def validUser (user):
- if len (user) > 8:
- return 0
-
- if not user[0] in string.letters:
- return 0
-
- for letter in user:
- if (letter == ':'
- or letter == ','
- or letter == '\n'
- or ord (letter) < 33):
- return 0
-
- return 1
-
- def setClock (root):
- # eeeeew, inline shell. ;)
- args = ("bash", "-c", """
- if [ -f /etc/sysconfig/clock ]; then
- . /etc/sysconfig/clock
-
- # convert old style clock config to new values
- if [ "${CLOCKMODE}" = "GMT" ]; then
- UTC=true
- elif [ "${CLOCKMODE}" = "ARC" ]; then
- ARC=true
- fi
- fi
-
- CLOCKFLAGS="--hctosys"
-
- case "$UTC" in
- yes|true)
- CLOCKFLAGS="$CLOCKFLAGS -u";
- ;;
- esac
-
- case "$ARC" in
- yes|true)
- CLOCKFLAGS="$CLOCKFLAGS -A";
- ;;
- esac
- case "$SRM" in
- yes|true)
- CLOCKFLAGS="$CLOCKFLAGS -S";
- ;;
- esac
- /sbin/hwclock $CLOCKFLAGS
- """)
- execWithRedirect('/bin/sh', args, stdin = None,
- stdout = None, stderr = None,
- root = root)
-