diff options
Diffstat (limited to 'src/util/sock_addr.h')
| -rw-r--r-- | src/util/sock_addr.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/util/sock_addr.h b/src/util/sock_addr.h new file mode 100644 index 0000000..1f5407a --- /dev/null +++ b/src/util/sock_addr.h @@ -0,0 +1,105 @@ +#ifndef _SOCK_ADDR_EQ_H_INCLUDED_ +#define _SOCK_ADDR_EQ_H_INCLUDED_ + +/*++ +/* NAME +/* sock_addr 3h +/* SUMMARY +/* socket address utilities +/* SYNOPSIS +/* #include <sock_addr.h> +/* DESCRIPTION +/* .nf + + /* + * System library. + */ +#include <sys/socket.h> +#include <netinet/in.h> +#include <string.h> + + /* + * External interface. + */ +#define SOCK_ADDR_PTR(ptr) ((struct sockaddr *)(ptr)) +#define SOCK_ADDR_FAMILY(ptr) SOCK_ADDR_PTR(ptr)->sa_family +#ifdef HAS_SA_LEN +#define SOCK_ADDR_LEN(ptr) SOCK_ADDR_PTR(ptr)->sa_len +#endif + +#define SOCK_ADDR_IN_PTR(sa) ((struct sockaddr_in *)(sa)) +#define SOCK_ADDR_IN_FAMILY(sa) SOCK_ADDR_IN_PTR(sa)->sin_family +#define SOCK_ADDR_IN_PORT(sa) SOCK_ADDR_IN_PTR(sa)->sin_port +#define SOCK_ADDR_IN_ADDR(sa) SOCK_ADDR_IN_PTR(sa)->sin_addr +#define IN_ADDR(ia) (*((struct in_addr *) (ia))) + +extern int sock_addr_cmp_addr(const struct sockaddr *, const struct sockaddr *); +extern int sock_addr_cmp_port(const struct sockaddr *, const struct sockaddr *); +extern int sock_addr_in_loopback(const struct sockaddr *); + +#ifdef HAS_IPV6 + +#ifndef HAS_SA_LEN +#define SOCK_ADDR_LEN(sa) \ + (SOCK_ADDR_PTR(sa)->sa_family == AF_INET6 ? \ + sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in)) +#endif + +#define SOCK_ADDR_PORT(sa) \ + (SOCK_ADDR_PTR(sa)->sa_family == AF_INET6 ? \ + SOCK_ADDR_IN6_PORT(sa) : SOCK_ADDR_IN_PORT(sa)) +#define SOCK_ADDR_PORTP(sa) \ + (SOCK_ADDR_PTR(sa)->sa_family == AF_INET6 ? \ + &SOCK_ADDR_IN6_PORT(sa) : &SOCK_ADDR_IN_PORT(sa)) + +#define SOCK_ADDR_IN6_PTR(sa) ((struct sockaddr_in6 *)(sa)) +#define SOCK_ADDR_IN6_FAMILY(sa) SOCK_ADDR_IN6_PTR(sa)->sin6_family +#define SOCK_ADDR_IN6_PORT(sa) SOCK_ADDR_IN6_PTR(sa)->sin6_port +#define SOCK_ADDR_IN6_ADDR(sa) SOCK_ADDR_IN6_PTR(sa)->sin6_addr +#define IN6_ADDR(ia) (*((struct in6_addr *) (ia))) + +#define SOCK_ADDR_EQ_ADDR(sa, sb) \ + ((SOCK_ADDR_FAMILY(sa) == AF_INET && SOCK_ADDR_FAMILY(sb) == AF_INET \ + && SOCK_ADDR_IN_ADDR(sa).s_addr == SOCK_ADDR_IN_ADDR(sb).s_addr) \ + || (SOCK_ADDR_FAMILY(sa) == AF_INET6 && SOCK_ADDR_FAMILY(sb) == AF_INET6 \ + && memcmp((char *) &(SOCK_ADDR_IN6_ADDR(sa)), \ + (char *) &(SOCK_ADDR_IN6_ADDR(sb)), \ + sizeof(SOCK_ADDR_IN6_ADDR(sa))) == 0)) + +#define SOCK_ADDR_EQ_PORT(sa, sb) \ + ((SOCK_ADDR_FAMILY(sa) == AF_INET && SOCK_ADDR_FAMILY(sb) == AF_INET \ + && SOCK_ADDR_IN_PORT(sa) == SOCK_ADDR_IN_PORT(sb)) \ + || (SOCK_ADDR_FAMILY(sa) == AF_INET6 && SOCK_ADDR_FAMILY(sb) == AF_INET6 \ + && SOCK_ADDR_IN6_PORT(sa) == SOCK_ADDR_IN6_PORT(sb))) + +#else + +#ifndef HAS_SA_LEN +#define SOCK_ADDR_LEN(sa) sizeof(struct sockaddr_in) +#endif + +#define SOCK_ADDR_PORT(sa) SOCK_ADDR_IN_PORT(sa)) +#define SOCK_ADDR_PORTP(sa) &SOCK_ADDR_IN_PORT(sa)) + +#define SOCK_ADDR_EQ_ADDR(sa, sb) \ + (SOCK_ADDR_FAMILY(sa) == AF_INET && SOCK_ADDR_FAMILY(sb) == AF_INET \ + && SOCK_ADDR_IN_ADDR(sa).s_addr == SOCK_ADDR_IN_ADDR(sb).s_addr) + +#define SOCK_ADDR_EQ_PORT(sa, sb) \ + (SOCK_ADDR_FAMILY(sa) == AF_INET && SOCK_ADDR_FAMILY(sb) == AF_INET \ + && SOCK_ADDR_IN_PORT(sa) == SOCK_ADDR_IN_PORT(sb)) + +#endif + +/* LICENSE +/* .ad +/* .fi +/* The Secure Mailer license must be distributed with this software. +/* AUTHOR(S) +/* Wietse Venema +/* IBM T.J. Watson Research +/* P.O. Box 704 +/* Yorktown Heights, NY 10598, USA +/*--*/ + +#endif |