----- Original Message ----- > ... which doesn't exit, therefore your program accesses memory addresses > that aren't meant to supply program code, and it crashes. > > Freebsd system calls are generally accessed using interrupt vector 0x80. > The function that deals with this interrupt in the kernel expects the > number of the system call in eax, and it expects the program to have > called a function along the way. Thus, it's looking for the following > stack structure: > > [RRRR][DDDD][SSSS][NNNN] > > RRRR: return address, inserted by 'call' instruction > DDDD: descriptor vector > SSSS: string address > NNNN: number of bytes to write. > > ... > > You can find the necessary system call numbers in > /usr/include/sys/syscall.h .
Tnaks a lot! i understand all perfectly ;-) _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
