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#!/usr/bin/python -u
# WARNING: python -u means unbuffered I/O. Without it the messages are
# passed to the parent asynchronously which looks bad in clients.
import sys
import os
import getopt
import rpm
def log(s):
sys.stderr.write("%s\n" % s)
def error_msg(s):
sys.stderr.write("%s\n" % s)
def error_msg_and_die(s):
sys.stderr.write("%s\n" % s)
sys.exit(1)
def xopen(name, mode):
try:
r = open(name, mode)
except IOError, e:
error_msg_and_die("Can't open '%s': %s" % (name, e))
return r
def parse_maps(maps_path):
try:
f = xopen(maps_path, "r")
# set() -> uniqifies the list of filenames
return set([x.strip()[x.find('/'):] for x in f.readlines() if x.find('/') > -1])
except IOError, e:
error_msg_and_die("Can't read '%s': %s" % (maps_path, e))
if __name__ == "__main__":
progname = os.path.basename(sys.argv[0])
help_text = ("Usage: %s [-o OUTFILE] -m PROC_PID_MAP_FILE") % progname
try:
opts, args = getopt.getopt(sys.argv[1:], "o:m:h", ["help"])
except getopt.GetoptError, err:
error_msg(err) # prints something like "option -a not recognized"
error_msg_and_die(help_text)
opt_o = None
memfile = None
for opt, arg in opts:
if opt in ("-h", "--help"):
print help_text
exit(0)
#elif opt == "-v":
# verbose += 1
elif opt == "-o":
opt_o = arg
elif opt == "-m":
memfile = arg
if not memfile:
error_msg("MAP_FILE is not specified")
error_msg_and_die(help_text)
try:
# Note that we open -o FILE only when we reach the point
# when we are definitely going to write something to it
outfile = sys.stdout
outname = opt_o
try:
dso_paths = parse_maps(memfile)
for path in dso_paths:
ts = rpm.TransactionSet()
mi = ts.dbMatch('basenames', path)
if len(mi):
for h in mi:
if outname:
outfile = xopen(outname, "w")
outname = None
outfile.write("%s %s (%s) %s\n" %
(path,
h[rpm.RPMTAG_NEVRA],
h[rpm.RPMTAG_VENDOR],
h[rpm.RPMTAG_INSTALLTIME])
)
except Exception, ex:
error_msg_and_die("Can't get the DSO list: %s" % ex)
outfile.close()
except:
if not opt_o:
opt_o = "<stdout>"
error_msg_and_die("Error writing to '%s'" % opt_o)
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