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PROP_SEND_SYCALL(3) FreeBSD Library Functions Manual PROP_SEND_SYCALL(3) NAME prop_array_send_syscall, prop_array_recv_syscall, prop_dictionary_send_syscall, prop_dictionary_recv_syscall - send and receive property lists to and from the kernel using syscalls SYNOPSIS #include <prop/proplib.h> int prop_array_send_syscall(prop_array_t array, struct plistref *prefp); int prop_array_recv_syscall(const struct plistref *prefp, prop_array_t *arrayp); int prop_dictionary_send_syscall(prop_dictionary_t dict, struct plistref *prefp); int prop_dictionary_recv_syscall(const struct plistref *prefp, prop_dictionary_t *dictp); DESCRIPTION The prop_array_send_syscall, prop_array_recv_syscall, prop_dictionary_send_syscall, and prop_dictionary_recv_syscall functions implement the user space side of a protocol for sending property lists to and from the kernel using syscall(2). RETURN VALUES If successful, functions return zero. Otherwise, an error number is returned to indicate the error. EXAMPLES The following (simplified) example demonstrates using prop_dictionary_send_syscall() and prop_dictionary_recv_syscall() in an application: void foo_setprops(prop_dictionary_t dict) { struct pref pref; (void) prop_dictionary_send_syscall(dict, &pref); (void) my_syscall_set(&pref); } prop_dictionary_t foo_getprops(void) { prop_dictionary_t dict; struct pref pref; (void) my_syscall_get(&pref); if (prop_dictionary_recv_syscall(&pref, &dict) != 0) return (NULL); return (dict); } ERRORS prop_array_send_syscall() and prop_dictionary_send_syscall() will fail if: [ENOMEM] Cannot allocate memory [ENOTSUP] Not supported prop_array_recv_syscall() and prop_dictionary_recv_syscall() will fail if: [EIO] Input/output error [ENOTSUP] Not supported SEE ALSO prop_array(3), prop_dictionary(3), proplib(3), prop_copyin_ioctl(9) HISTORY The proplib property container object library first appeared in NetBSD 4.0. FreeBSD 14.1-RELEASE-p8 January 17, 2011 FreeBSD 14.1-RELEASE-p8