I

The functions and macros in the C library are described here in alphabetical order:

A ¦ B ¦ C ¦ D ¦ E ¦ F ¦ G ¦ H ¦ I ¦ J ¦ K ¦ L ¦ M ¦ N ¦ O ¦ P ¦ Q ¦ R ¦ S ¦ T ¦ U ¦ V ¦ W ¦ X ¦ Y ¦ Z

ICMP
ICMP6
ICMP6_FILTER_SETPASSALL() — see ICMP6
ICMP6_FILTER_SETBLOCKALL() — see ICMP6
ICMP6_FILTER_SETPASS() — see ICMP6
ICMP6_FILTER_SETBLOCK() — see ICMP6
ICMP6_FILTER_WILLPASS() — see ICMP6
ICMP6_FILTER_WILLBLOCK() — see ICMP6
if_freenameindex()
if_indextoname()
if_nameindex()
if_nametoindex()
ifaddrs
ilogb()
ilogbf()
in8()
in8s()
in16()
in16s()
inbe16()
inle16()
in32()
in32s()
inbe32()
inle32()
index()
inet_addr()
inet_aton()
inet_lnaof()
inet_makeaddr()
inet_net_ntop()
inet_netof()
inet_net_pton()
inet_network()
inet_ntoa()
inet_ntoa_r()
inet_ntop()
inet_pton()
INET6
inet6_option_alloc()
inet6_option_append()
inet6_option_find()
inet6_option_init()
inet6_option_next()
inet6_option_space()
inet6_rthdr_add()
inet6_rthdr_getaddr()
inet6_rthdr_getflags()
inet6_rthdr_init()
inet6_rthdr_lasthop()
inet6_rthdr_reverse()
inet6_rthdr_segments()
inet6_rthdr_space()
initgroups()
initstate()
input_line()
insque()
InterruptAttach()
InterruptAttach_r()
InterruptAttachEvent()
InterruptAttachEvent_r()
InterruptDetach()
InterruptDetach_r()
InterruptDisable()
InterruptEnable()
InterruptHookIdle()
InterruptHookTrace()
InterruptLock()
InterruptMask()
InterruptUnlock()
InterruptUnmask()
InterruptWait()
InterruptWait_r()
intr_capture() — deprecated; see InterruptAttach()
intr_lock() — deprecated; see InterruptMask()
intr_release() — deprecated; see InterruptDetach()
intr_timed_wait() — deprecated; see InterruptWait() and Timertimeout()
intr_unlock() — deprecated; see InterruptUnmask()
intr_wait() — deprecated; see InterruptWait()
_intr_v86()
_io_connect
_io_connect_ftype_reply
_io_connect_link_reply
_IO_SET_CONNECT_RET() — see iofunc_open()
_IO_SET_PATHCONF_VALUE() — see iofunc_pathconf()
_IO_SET_READ_NBYTES() — see iofunc_read_verify()
_IO_SET_WRITE_NBYTES() — see iofunc_write_verify()
ioctl()
ioctl_socket()
iofdinfo()
iofunc_attr_init()
iofunc_attr_lock()
iofunc_attr_t
iofunc_attr_trylock()
iofunc_attr_unlock()
iofunc_check_access()
iofunc_chmod()
iofunc_chmod_default()
iofunc_chown()
iofunc_chown_default()
iofunc_client_info()
iofunc_close_dup()
iofunc_close_dup_default()
iofunc_close_ocb()
iofunc_close_ocb_default()
iofunc_devctl()
iofunc_devctl_default()
iofunc_fdinfo()
iofunc_fdinfo_default()
iofunc_func_init()
iofunc_link()
iofunc_lock()
iofunc_lock_calloc()
iofunc_lock_default()
iofunc_lock_free()
iofunc_lock_ocb_default()
iofunc_lseek()
iofunc_lseek_default()
iofunc_mknod()
iofunc_mmap()
iofunc_mmap_default()
iofunc_notify()
IOFUNC_NOTIFY_DISARM() — see iofunc_notify()
IOFUNC_NOTIFY_INIT() — see iofunc_notify()
IOFUNC_NOTIFY_INPUT_CHECK() — see iofunc_notify_trigger()
IOFUNC_NOTIFY_OBAND_CHECK() — see iofunc_notify_trigger()
IOFUNC_NOTIFY_OUTPUT_CHECK() — see iofunc_notify_trigger()
iofunc_notify_remove()
iofunc_notify_trigger()
iofunc_ocb_attach()
iofunc_ocb_calloc()
iofunc_ocb_detach()
iofunc_ocb_free()
iofunc_ocb_t
iofunc_open()
iofunc_open_default()
iofunc_openfd()
iofunc_openfd_default()
iofunc_pathconf()
iofunc_pathconf_default()
iofunc_read_default()
iofunc_read_verify()
iofunc_readlink()
iofunc_rename()
iofunc_space_verify()
iofunc_stat()
iofunc_stat_default()
iofunc_sync()
iofunc_sync_default()
iofunc_sync_verify()
iofunc_time_update()
iofunc_unblock()
iofunc_unblock_default()
iofunc_unlink()
iofunc_unlock_ocb_default()
iofunc_utime()
iofunc_utime_default()
iofunc_write_default()
iofunc_write_verify()
ionotify()
IP
IPsec
ipsec_dump_policy()
ipsec_get_policylen()
ipsec_set_policy()
ipsec_strerror()
IPv6
iruserok()
iruserok_sa()
isalnum()
isalpha()
isascii()
isatty()
iscntrl()
isdigit()
isfdtype()
isfinite()
isgraph()
isinf()
isinff() — deprecated; see isinf()
islower()
isnan()
isnanf() — deprecated; see isnan()
isprint()
ispunct()
isspace()
isupper()
iswalnum()
iswalpha()
iswcntrl()
iswctype()
iswdigit()
iswgraph()
iswlower()
iswprint()
iswpunct()
iswspace()
iswupper()
iswxdigit()
isxdigit()
itoa()

A ¦ B ¦ C ¦ D ¦ E ¦ F ¦ G ¦ H ¦ I ¦ J ¦ K ¦ L ¦ M ¦ N ¦ O ¦ P ¦ Q ¦ R ¦ S ¦ T ¦ U ¦ V ¦ W ¦ X ¦ Y ¦ Z