itsacoderepo
commented
1 year ago Have you tried the steps in the documentation? https://docs.joern.io/export/
Basically you can do the following steps (which can also be scripted)
Snippet:
~/b/j/joern-cli> cat /tmp/returntest/test.c
int func_with_multiple_returns (int x) {
if (x > 10) {
return 0;
} else {
return 1;
}
}Generating CPG for the snippet with CPG name :
test@device ~/b/j/joern-cli> ./joern-parse /tmp/returntest/ -o returntest.bin.zip
Parsing code at: /tmp/returntest/ - language: `NEWC`
[+] Running language frontend
[...]
[+] Applying default overlays
Successfully wrote graph to: /home/test/bin/joern/joern-cli/returntest.bin.zip
To load the graph, type `joern /home/test/bin/joern/joern-cli/returntest.bin.zip`Loading the CPG for the snippet only:
~/b/j/joern-cli> ./joern
[...]
Version: 2.0.25
Type `help` to begin
joern> importCpg("/home/test/bin/joern/joern-cli/returntest.bin.zip")
[...]
val res0: Option[io.shiftleft.codepropertygraph.Cpg] = Some(value = Cpg (Graph [45 nodes]))
joern> cpg.method.name("func.*").dump
val res1: List[String] = List(
"""int func_with_multiple_returns (int x) { /* <=== func_with_multiple_returns */
if (x > 10) {
return 0;
} else {
return 1;
}
}
"""
)
Is your feature request related to a problem? Please describe. I want to use joern to extract cpgs for input into a machine learning model but I'm finding it difficult to extract and keep track of all the snippets.
Describe the solution you'd like Is it possible to parse a snippet and then write out the cpg to a singular file. And is it possible to parse the graph into a tempfile or stdout.