musl/include/netinet/in.h

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#ifndef _NETINET_IN_H
#define _NETINET_IN_H
#ifdef __cplusplus
extern "C" {
#endif
#include <features.h>
refactor headers, especially alltypes.h, and improve C++ ABI compat the arch-specific bits/alltypes.h.sh has been replaced with a generic alltypes.h.in and minimal arch-specific bits/alltypes.h.in. this commit is intended to have no functional changes except: - exposing additional symbols that POSIX allows but does not require - changing the C++ name mangling for some types - fixing the signedness of blksize_t on powerpc (POSIX requires signed) - fixing the limit macros for sig_atomic_t on x86_64 - making dev_t an unsigned type (ABI matching goal, and more logical) in addition, some types that were wrongly defined with long on 32-bit archs were changed to int, and vice versa; this change is non-functional except for the possibility of making pointer types mismatch, and only affects programs that were using them incorrectly, and only at build-time, not runtime. the following changes were made in the interest of moving non-arch-specific types out of the alltypes system and into the headers they're associated with, and also will tend to improve application compatibility: - netdb.h now includes netinet/in.h (for socklen_t and uint32_t) - netinet/in.h now includes sys/socket.h and inttypes.h - sys/resource.h now includes sys/time.h (for struct timeval) - sys/wait.h now includes signal.h (for siginfo_t) - langinfo.h now includes nl_types.h (for nl_item) for the types in stdint.h: - types which are of no interest to other headers were moved out of the alltypes system. - fast types for 8- and 64-bit are hard-coded (at least for now); only the 16- and 32-bit ones have reason to vary by arch. and the following types have been changed for C++ ABI purposes; - mbstate_t now has a struct tag, __mbstate_t - FILE's struct tag has been changed to _IO_FILE - DIR's struct tag has been changed to __dirstream - locale_t's struct tag has been changed to __locale_struct - pthread_t is defined as unsigned long in C++ mode only - fpos_t now has a struct tag, _G_fpos64_t - fsid_t's struct tag has been changed to __fsid_t - idtype_t has been made an enum type (also required by POSIX) - nl_catd has been changed from long to void * - siginfo_t's struct tag has been removed - sigset_t's has been given a struct tag, __sigset_t - stack_t has been given a struct tag, sigaltstack - suseconds_t has been changed to long on 32-bit archs - [u]intptr_t have been changed from long to int rank on 32-bit archs - dev_t has been made unsigned summary of tests that have been performed against these changes: - nsz's libc-test (diff -u before and after) - C++ ABI check symbol dump (diff -u before, after, glibc) - grepped for __NEED, made sure types needed are still in alltypes - built gcc 3.4.6
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#include <inttypes.h>
#include <sys/socket.h>
refactor headers, especially alltypes.h, and improve C++ ABI compat the arch-specific bits/alltypes.h.sh has been replaced with a generic alltypes.h.in and minimal arch-specific bits/alltypes.h.in. this commit is intended to have no functional changes except: - exposing additional symbols that POSIX allows but does not require - changing the C++ name mangling for some types - fixing the signedness of blksize_t on powerpc (POSIX requires signed) - fixing the limit macros for sig_atomic_t on x86_64 - making dev_t an unsigned type (ABI matching goal, and more logical) in addition, some types that were wrongly defined with long on 32-bit archs were changed to int, and vice versa; this change is non-functional except for the possibility of making pointer types mismatch, and only affects programs that were using them incorrectly, and only at build-time, not runtime. the following changes were made in the interest of moving non-arch-specific types out of the alltypes system and into the headers they're associated with, and also will tend to improve application compatibility: - netdb.h now includes netinet/in.h (for socklen_t and uint32_t) - netinet/in.h now includes sys/socket.h and inttypes.h - sys/resource.h now includes sys/time.h (for struct timeval) - sys/wait.h now includes signal.h (for siginfo_t) - langinfo.h now includes nl_types.h (for nl_item) for the types in stdint.h: - types which are of no interest to other headers were moved out of the alltypes system. - fast types for 8- and 64-bit are hard-coded (at least for now); only the 16- and 32-bit ones have reason to vary by arch. and the following types have been changed for C++ ABI purposes; - mbstate_t now has a struct tag, __mbstate_t - FILE's struct tag has been changed to _IO_FILE - DIR's struct tag has been changed to __dirstream - locale_t's struct tag has been changed to __locale_struct - pthread_t is defined as unsigned long in C++ mode only - fpos_t now has a struct tag, _G_fpos64_t - fsid_t's struct tag has been changed to __fsid_t - idtype_t has been made an enum type (also required by POSIX) - nl_catd has been changed from long to void * - siginfo_t's struct tag has been removed - sigset_t's has been given a struct tag, __sigset_t - stack_t has been given a struct tag, sigaltstack - suseconds_t has been changed to long on 32-bit archs - [u]intptr_t have been changed from long to int rank on 32-bit archs - dev_t has been made unsigned summary of tests that have been performed against these changes: - nsz's libc-test (diff -u before and after) - C++ ABI check symbol dump (diff -u before, after, glibc) - grepped for __NEED, made sure types needed are still in alltypes - built gcc 3.4.6
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typedef uint16_t in_port_t;
typedef uint32_t in_addr_t;
struct in_addr { in_addr_t s_addr; };
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struct sockaddr_in
{
sa_family_t sin_family;
in_port_t sin_port;
struct in_addr sin_addr;
uint8_t sin_zero[8];
};
struct in6_addr
{
union {
uint8_t __s6_addr[16];
uint16_t __s6_addr16[8];
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uint32_t __s6_addr32[4];
} __in6_union;
};
#define s6_addr __in6_union.__s6_addr
#define s6_addr16 __in6_union.__s6_addr16
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#define s6_addr32 __in6_union.__s6_addr32
struct sockaddr_in6
{
sa_family_t sin6_family;
in_port_t sin6_port;
uint32_t sin6_flowinfo;
struct in6_addr sin6_addr;
uint32_t sin6_scope_id;
};
struct ipv6_mreq
{
struct in6_addr ipv6mr_multiaddr;
unsigned ipv6mr_interface;
};
#define INADDR_ANY ((in_addr_t) 0x00000000)
#define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
#define INADDR_NONE ((in_addr_t) 0xffffffff)
#define INADDR_LOOPBACK ((in_addr_t) 0x7f000001)
#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000)
#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001)
#define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002)
#define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff)
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#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
extern const struct in6_addr in6addr_any, in6addr_loopback;
#undef INET_ADDRSTRLEN
#undef INET6_ADDRSTRLEN
#define INET_ADDRSTRLEN 16
#define INET6_ADDRSTRLEN 46
uint32_t htonl(uint32_t);
uint16_t htons(uint16_t);
uint32_t ntohl(uint32_t);
uint16_t ntohs(uint16_t);
#define IPPROTO_IP 0
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#define IPPROTO_HOPOPTS 0
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#define IPPROTO_ICMP 1
#define IPPROTO_IGMP 2
#define IPPROTO_IPIP 4
#define IPPROTO_TCP 6
#define IPPROTO_EGP 8
#define IPPROTO_PUP 12
#define IPPROTO_UDP 17
#define IPPROTO_IDP 22
#define IPPROTO_TP 29
#define IPPROTO_DCCP 33
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#define IPPROTO_IPV6 41
#define IPPROTO_ROUTING 43
#define IPPROTO_FRAGMENT 44
#define IPPROTO_RSVP 46
#define IPPROTO_GRE 47
#define IPPROTO_ESP 50
#define IPPROTO_AH 51
#define IPPROTO_ICMPV6 58
#define IPPROTO_NONE 59
#define IPPROTO_DSTOPTS 60
#define IPPROTO_MTP 92
#define IPPROTO_BEETPH 94
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#define IPPROTO_ENCAP 98
#define IPPROTO_PIM 103
#define IPPROTO_COMP 108
#define IPPROTO_SCTP 132
#define IPPROTO_MH 135
#define IPPROTO_UDPLITE 136
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#define IPPROTO_RAW 255
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#define IPPROTO_MAX 256
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
(((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0)
#define IN6_IS_ADDR_LOOPBACK(a) \
(((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
((uint32_t *) (a))[2] == 0 && \
((uint8_t *) (a))[12] == 0 && ((uint8_t *) (a))[13] == 0 && \
((uint8_t *) (a))[14] == 0 && ((uint8_t *) (a))[15] == 1 )
#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
#define IN6_IS_ADDR_LINKLOCAL(a) \
((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0x80)
#define IN6_IS_ADDR_SITELOCAL(a) \
((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0xc0)
#define IN6_IS_ADDR_V4MAPPED(a) \
(((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
((uint8_t *) (a))[8] == 0 && ((uint8_t *) (a))[9] == 0 && \
((uint8_t *) (a))[10] == 0xff && ((uint8_t *) (a))[11] == 0xff)
#define IN6_IS_ADDR_V4COMPAT(a) \
(((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
((uint32_t *) (a))[2] == 0 && ((uint8_t *) (a))[15] > 1)
#define IN6_IS_ADDR_MC_NODELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x1))
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x2))
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x5))
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x8))
#define IN6_IS_ADDR_MC_GLOBAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0xe))
#define __ARE_4_EQUAL(a,b) \
(!( (0[a]-0[b]) | (1[a]-1[b]) | (2[a]-2[b]) | (3[a]-3[b]) ))
#define IN6_ARE_ADDR_EQUAL(a,b) \
__ARE_4_EQUAL((const uint32_t *)(a), (const uint32_t *)(b))
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#define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0)
#define IN_CLASSA_NET 0xff000000
#define IN_CLASSA_NSHIFT 24
#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
#define IN_CLASSA_MAX 128
#define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
#define IN_CLASSB_NET 0xffff0000
#define IN_CLASSB_NSHIFT 16
#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
#define IN_CLASSB_MAX 65536
#define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
#define IN_CLASSC_NET 0xffffff00
#define IN_CLASSC_NSHIFT 8
#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
#define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
#define IN_MULTICAST(a) IN_CLASSD(a)
#define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
#define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)
#define IN_LOOPBACKNET 127
#define IP_TOS 1
#define IP_TTL 2
#define IP_HDRINCL 3
#define IP_OPTIONS 4
#define IP_ROUTER_ALERT 5
#define IP_RECVOPTS 6
#define IP_RETOPTS 7
#define IP_PKTINFO 8
#define IP_PKTOPTIONS 9
#define IP_PMTUDISC 10
#define IP_MTU_DISCOVER 10
#define IP_RECVERR 11
#define IP_RECVTTL 12
#define IP_RECVTOS 13
#define IP_MTU 14
#define IP_FREEBIND 15
#define IP_IPSEC_POLICY 16
#define IP_XFRM_POLICY 17
#define IP_PASSSEC 18
#define IP_TRANSPARENT 19
#define IP_ORIGDSTADDR 20
#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
#define IP_MINTTL 21
#define IP_MULTICAST_IF 32
#define IP_MULTICAST_TTL 33
#define IP_MULTICAST_LOOP 34
#define IP_ADD_MEMBERSHIP 35
#define IP_DROP_MEMBERSHIP 36
#define IP_UNBLOCK_SOURCE 37
#define IP_BLOCK_SOURCE 38
#define IP_ADD_SOURCE_MEMBERSHIP 39
#define IP_DROP_SOURCE_MEMBERSHIP 40
#define IP_MSFILTER 41
#define IP_MULTICAST_ALL 49
#define IP_UNICAST_IF 50
#define IP_RECVRETOPTS IP_RETOPTS
#define IP_PMTUDISC_DONT 0
#define IP_PMTUDISC_WANT 1
#define IP_PMTUDISC_DO 2
#define IP_PMTUDISC_PROBE 3
#define IP_DEFAULT_MULTICAST_TTL 1
#define IP_DEFAULT_MULTICAST_LOOP 1
#define IP_MAX_MEMBERSHIPS 20
struct ip_opts
{
struct in_addr ip_dst;
char ip_opts[40];
};
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define MCAST_JOIN_GROUP 42
#define MCAST_BLOCK_SOURCE 43
#define MCAST_UNBLOCK_SOURCE 44
#define MCAST_LEAVE_GROUP 45
#define MCAST_JOIN_SOURCE_GROUP 46
#define MCAST_LEAVE_SOURCE_GROUP 47
#define MCAST_MSFILTER 48
#define MCAST_EXCLUDE 0
#define MCAST_INCLUDE 1
struct ip_mreq
{
struct in_addr imr_multiaddr;
struct in_addr imr_interface;
};
struct ip_mreqn
{
struct in_addr imr_multiaddr;
struct in_addr imr_address;
int imr_ifindex;
};
struct ip_mreq_source {
struct in_addr imr_multiaddr;
struct in_addr imr_interface;
struct in_addr imr_sourceaddr;
};
struct ip_msfilter {
struct in_addr imsf_multiaddr;
struct in_addr imsf_interface;
uint32_t imsf_fmode;
uint32_t imsf_numsrc;
struct in_addr imsf_slist[1];
};
#define IP_MSFILTER_SIZE(numsrc) \
(sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
+ (numsrc) * sizeof(struct in_addr))
struct group_req {
uint32_t gr_interface;
struct sockaddr_storage gr_group;
};
struct group_source_req {
uint32_t gsr_interface;
struct sockaddr_storage gsr_group;
struct sockaddr_storage gsr_source;
};
struct group_filter {
uint32_t gf_interface;
struct sockaddr_storage gf_group;
uint32_t gf_fmode;
uint32_t gf_numsrc;
struct sockaddr_storage gf_slist[1];
};
#define GROUP_FILTER_SIZE(numsrc) \
(sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
+ (numsrc) * sizeof(struct sockaddr_storage))
struct in_pktinfo
{
int ipi_ifindex;
struct in_addr ipi_spec_dst;
struct in_addr ipi_addr;
};
struct in6_pktinfo
{
struct in6_addr ipi6_addr;
unsigned ipi6_ifindex;
};
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struct ip6_mtuinfo
{
struct sockaddr_in6 ip6m_addr;
uint32_t ip6m_mtu;
};
#endif
#define IPV6_ADDRFORM 1
#define IPV6_2292PKTINFO 2
#define IPV6_2292HOPOPTS 3
#define IPV6_2292DSTOPTS 4
#define IPV6_2292RTHDR 5
#define IPV6_2292PKTOPTIONS 6
#define IPV6_CHECKSUM 7
#define IPV6_2292HOPLIMIT 8
#define IPV6_NEXTHOP 9
#define IPV6_AUTHHDR 10
#define IPV6_UNICAST_HOPS 16
#define IPV6_MULTICAST_IF 17
#define IPV6_MULTICAST_HOPS 18
#define IPV6_MULTICAST_LOOP 19
#define IPV6_JOIN_GROUP 20
#define IPV6_LEAVE_GROUP 21
#define IPV6_ROUTER_ALERT 22
#define IPV6_MTU_DISCOVER 23
#define IPV6_MTU 24
#define IPV6_RECVERR 25
#define IPV6_V6ONLY 26
#define IPV6_JOIN_ANYCAST 27
#define IPV6_LEAVE_ANYCAST 28
#define IPV6_IPSEC_POLICY 34
#define IPV6_XFRM_POLICY 35
#define IPV6_RECVPKTINFO 49
#define IPV6_PKTINFO 50
#define IPV6_RECVHOPLIMIT 51
#define IPV6_HOPLIMIT 52
#define IPV6_RECVHOPOPTS 53
#define IPV6_HOPOPTS 54
#define IPV6_RTHDRDSTOPTS 55
#define IPV6_RECVRTHDR 56
#define IPV6_RTHDR 57
#define IPV6_RECVDSTOPTS 58
#define IPV6_DSTOPTS 59
#define IPV6_RECVTCLASS 66
#define IPV6_TCLASS 67
#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
#define IPV6_RXHOPOPTS IPV6_HOPOPTS
#define IPV6_RXDSTOPTS IPV6_DSTOPTS
#define IPV6_PMTUDISC_DONT 0
#define IPV6_PMTUDISC_WANT 1
#define IPV6_PMTUDISC_DO 2
#define IPV6_PMTUDISC_PROBE 3
#define IPV6_RTHDR_LOOSE 0
#define IPV6_RTHDR_STRICT 1
#define IPV6_RTHDR_TYPE_0 0
#ifdef __cplusplus
}
#endif
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#endif