osfmk/i386/copyio.c

133        vm_size_t nbytes, vm_size_t *lencopied, int use_kernel_map)
156 		     (int)nbytes, thread->machine.copyio_state, 0);
158 	if (nbytes == 0) {
160 			     (unsigned)kernel_addr, (unsigned)nbytes, 0, 0);
172 		        error = copyin_kern(kern_vaddr, kernel_addr, nbytes);
176 		        error = copyout_kern(kernel_addr, kern_vaddr, nbytes);
180 		        error = copyinstr_kern(kern_vaddr, kernel_addr, nbytes, lencopied);
184 		        error = copyinphys_kern(kern_vaddr, kernel_addr, nbytes);
188 		        error = copyoutphys_kern(kernel_addr, kern_vaddr, nbytes);
192 			     (unsigned)kernel_addr, (unsigned)nbytes,
201 	if ((nbytes && (user_addr + nbytes <= user_addr)) ||
203 	    (user_addr + nbytes > vm_map_max(thread->map))) {
216 	if (cnt > nbytes)
217 	        cnt = nbytes;
327 			if (error == ENAMETOOLONG && nbytes > cnt)
332 			        nbytes = *lencopied;
341 			        nbytes = *lencopied;
345 			if (cnt == nbytes) {
351 			        nbytes = *lencopied;
362 		if ((nbytes -= cnt) == 0)
369 		if (nbytes > NBPDE)
372 		        cnt = nbytes;
378 		     (unsigned)kernel_addr, (unsigned)nbytes, error, 0);
489 copyinmsg(const user_addr_t user_addr, char *kernel_addr, mach_msg_size_t nbytes)
491         return (copyio(COPYIN, user_addr, kernel_addr, nbytes, NULL, 0));
495 copyin(const user_addr_t user_addr, char *kernel_addr, vm_size_t nbytes)
497         return (copyio(COPYIN, user_addr, kernel_addr, nbytes, NULL, 0));
501 copyinstr(const user_addr_t user_addr,  char *kernel_addr, vm_size_t nbytes, vm_size_t *lencopied)
505         return (copyio(COPYINSTR, user_addr, kernel_addr, nbytes, lencopied, 0));
509 copyoutmsg(const char *kernel_addr, user_addr_t user_addr, mach_msg_size_t nbytes)
511 	return (copyio(COPYOUT, user_addr, (char *)(uintptr_t)kernel_addr, nbytes, NULL, 0));
515 copyout(const void *kernel_addr, user_addr_t user_addr, vm_size_t nbytes)
517 	return (copyio(COPYOUT, user_addr, (char *)(uintptr_t)kernel_addr, nbytes, NULL, 0));