Intercepting system calls

[JSR COUT]

Anybody know if it's posible to trap a system call under OSX? We have that ability with Mac OS9, 8, 7 ... I am only interested in trapping OSX toolbox routines, not normal unix system calls..

 

[strobe]

The only 'traps' are in the kernel which is definitely not what you're looking for.

If you want to replace library functions you'll have to use DYLD_LIBRARY_INSERT and compile a custom library which replaces the specific 'modules'

man -k dyld

 

[JSR COUT]

Cool, thanks

 

[strobe]

If you succeed let me know, I haven't used this facility and haven't seen any code which does yet.