Is it possible to forbid creation of coredumps only for my program? I know that it's possible to change behaviour for entire system using ulimit, but I'd like to block it only for my program. What should I code in my program? Maybe write some kernel module?
Asked
Active
Viewed 61 times
-1
Ivan Kush
- 2,958
- 2
- 23
- 39
-
1I don't see the point of doing this. Whether core dumps should be allowed is a policy question that should be decided by the user running the program and / or by the system administrator. Programs generally ought not to try to take such things into their own hands. – John Bollinger May 15 '20 at 19:56
-
1In following @JohnBollinger's comment, one could create a no-dump user (or group), chown that binary to be owned by that user, and set the SUID bit on it so the program runs as said user, and restrict core-dumps for that user in limits.conf. That way it is something configurable by the system administrator. – Christian Gibbons May 15 '20 at 20:02
1 Answers
2
Call setrlimit() to do the same thing that the ulimit command does.
#include <sys/resource.h>
struct rlimit new;
new.rlim_cur = new.rlim_max = 0;
setrlimit(RLIMIT_CORE, &new);
Barmar
- 741,623
- 53
- 500
- 612