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#!/usr/bin/env python
# Auto-generate radare syscall profile for OpenBSD from syscall.h
# (c) Edd Barrett 2011
import sys
import copy
f = open("/usr/include/sys/syscall.h", "r")
rec = { "name" : None, "args" : None }
recs = {}
for line in f:
if line.startswith("/* syscall:"):
# extract syscall name
openq = line.find('"')
closeq = line.find('"', openq + 1)
rec["name"] = line[openq+1:closeq]
# extract number of args
args = line.find("args:")
args = args + len("args: ")
rec["args"] = line[args:].count('"') / 2
elif line.startswith("#define"):
if "SYS_MAXSYSCALL" in line:
continue
# extract syscall number
sp = line.split("\t")
callnum = sp[2].rstrip()
# check required info is there
for i in rec:
if i == None:
print("missing info for %s" % str(rec))
sys.exit(1)
recs[int(callnum)] = (copy.copy(rec))
rec = { "name" : None, "args" : None }
f.close()
out = open("openbsd.c", "w")
out.write("#include \"r_syscall.h\"\n\n/* syscall-openbsd */\n")
out.write("RSyscallItem syscalls_openbsd_x86[] = {\n")
keys = recs.keys()
for call in keys:
out.write(" { \"%s\", 0x80, %d, %d },\n" %
(recs[call]["name"], call, recs[call]["args"]))
out.write("};\n")
out.close()
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