Module Name: src
Committed By: rillig
Date: Sat Aug 29 08:59:08 UTC 2020
Modified Files:
src/usr.bin/make: main.c
Log Message:
make(1): fix null pointer dereference when sys.mk is not found
This is quite hard to trigger in a real-life scenario since it requires
precise timing.
Instead, I created /tmp/sys.mk and ran "./make -m /tmp -f /dev/null" in
the debugger, after setting a breakpoint in this line:
ln = Lst_Find(sysMkPath, ReadMakefile, NULL);
Once this line was reached, I removed /tmp/sys.mk to make ReadMakefile
fail. Just adding a few parse errors won't help since ReadMakefile only
fails if the file cannot be found.
To generate a diff of this commit:
cvs rdiff -u -r1.323 -r1.324 src/usr.bin/make/main.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
