errno: Search by perror string

[k4lizen]

I want stuff like pwn errno "Cannot allocate memory" to return EACCES. Can often come in handy when I see the message being printed via errno and want to check the man pages or source to see what condition causes that.

The definitions are in glibc/sysdeps/gnu/errlist.h

[david942j]

Would /usr/bin/errno -l | grep "Cannot allocate memory" meet your requirement?

[k4lizen]

you mean adding a -l / --list flag to pwn errno which prints all of them? Yeah sure, that'd be a fine solution