spawn java.exe on Windows not working about frida-node HOT 6 CLOSED

Interesting. Does it work with any other applications? Did you try this use-case with the python binding by any chance? (I'm curious if it's a frida-node bug or deeper in the stack.)

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I've tried with cat, echo, just java.exe (without arguments) and it works. But, it seems something odd happens when arguments are passed to java.exe.

I didn't try with python. I'll try it later.

from frida-node.

Ok! I wonder if there's something wrong with how we construct the argument list.

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it has the same issue with python:

import frida
import os

# NB python 3.3+ already has a shutil.which function. we somewhat emulate it here.
def which(binary):
    extensions = os.getenv("PATHEXT", "").split(os.pathsep)
    for p in os.environ["PATH"].split(os.pathsep):
        path = os.path.join(p, binary)
        for extension in extensions:
            p = os.path.abspath(path + extension)
            if os.path.isfile(p) and os.access(p, os.X_OK):
                return p
    return None

JAVA_PATH = which("java")

args = [JAVA_PATH, "-jar", "Program.jar"]

# this works fine:
#os.spawnv(os.P_WAIT, JAVA_PATH, args)

pid = frida.spawn(args)
frida.resume(pid)

EDIT I've added the os.spawnv call.

from frida-node.

Aha, nice. Clearly a bug in frida-core then. I'll have a look at it before the upcoming release. Thanks!

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Fixed by frida/frida-core@2ff867f. Thanks for reporting!

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