28a0841bf5
Because different platforms have different levels of support for IPv6, different kinds of sockaddr variants, and some have getaddrinfo et al while others don't, we could end up with a mess if ifdefs, duplicate code and other maintainance nightmares. Instead, we're introducing wrappers around the common form for socket communication: BIO_ADDR, closely related to struct sockaddr and some of its variants. BIO_ADDRINFO, closely related to struct addrinfo. With that comes support routines, both convenient creators and accessors, plus a few utility functions: BIO_parse_hostserv, takes a string of the form host:service and splits it into host and service. It checks for * in both parts, and converts any [ipv6-address] syntax to ust the IPv6 address. BIO_lookup, looks up information on a host. All routines handle IPv4 (AF_INET) and IPv6 (AF_INET6) addresses, and there is support for local sockets (AF_UNIX) as well. Reviewed-by: Kurt Roeckx <kurt@openssl.org>
114 lines
3 KiB
C
114 lines
3 KiB
C
#define USE_SOCKETS
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#include "e_os.h"
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/* BEGIN BIO_ADDRINFO/BIO_ADDR stuff. */
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#ifndef OPENSSL_NO_SOCK
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/*
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* Throughout this file and b_addr.c, the existence of the macro
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* AI_PASSIVE is used to detect the availability of struct addrinfo,
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* getnameinfo() and getaddrinfo(). If that macro doesn't exist,
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* we use our own implementation instead.
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*/
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/*
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* It's imperative that these macros get defined before openssl/bio.h gets
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* included. Otherwise, the AI_PASSIVE hack will not work properly.
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* For clarity, we check for internal/cryptlib.h since it's a common header
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* that also includes bio.h.
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*/
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# ifdef HEADER_CRYPTLIB_H
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# error internal/cryptlib.h included before bio_lcl.h
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# endif
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# ifdef HEADER_BIO_H
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# error openssl/bio.h included before bio_lcl.h
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# endif
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/*
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* Undefine AF_UNIX on systems that define it but don't support it.
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*/
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# if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_VMS)
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# undef AF_UNIX
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# endif
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# ifdef AI_PASSIVE
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# define bio_addrinfo_st addrinfo
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# define bai_family ai_family
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# define bai_socktype ai_socktype
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# define bai_protocol ai_protocol
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# define bai_addrlen ai_addrlen
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# define bai_addr ai_addr
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# define bai_next ai_next
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# else
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struct bio_addrinfo_st {
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int bai_family;
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int bai_socktype;
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int bai_protocol;
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size_t bai_addrlen;
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struct sockaddr *bai_addr;
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struct bio_addrinfo_st *bai_next;
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};
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# endif
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union bio_addr_st {
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struct sockaddr sa;
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# ifdef AF_INET6
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struct sockaddr_in6 sin6;
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# endif
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struct sockaddr_in sin;
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# ifdef AF_UNIX
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struct sockaddr_un sun;
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# endif
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};
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#endif
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/* END BIO_ADDRINFO/BIO_ADDR stuff. */
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#include "internal/cryptlib.h"
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#include <openssl/bio.h>
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#ifndef OPENSSL_NO_SOCK
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int BIO_ADDR_make(BIO_ADDR *ap, const struct sockaddr *sa);
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const struct sockaddr *BIO_ADDR_sockaddr(const BIO_ADDR *ap);
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struct sockaddr *BIO_ADDR_sockaddr_noconst(BIO_ADDR *ap);
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socklen_t BIO_ADDR_sockaddr_size(const BIO_ADDR *ap);
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socklen_t BIO_ADDRINFO_sockaddr_size(const BIO_ADDRINFO *bai);
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const struct sockaddr *BIO_ADDRINFO_sockaddr(const BIO_ADDRINFO *bai);
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#endif
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#if BIO_FLAGS_UPLINK==0
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/* Shortcut UPLINK calls on most platforms... */
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# define UP_stdin stdin
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# define UP_stdout stdout
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# define UP_stderr stderr
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# define UP_fprintf fprintf
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# define UP_fgets fgets
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# define UP_fread fread
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# define UP_fwrite fwrite
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# undef UP_fsetmod
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# define UP_feof feof
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# define UP_fclose fclose
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# define UP_fopen fopen
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# define UP_fseek fseek
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# define UP_ftell ftell
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# define UP_fflush fflush
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# define UP_ferror ferror
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# ifdef _WIN32
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# define UP_fileno _fileno
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# define UP_open _open
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# define UP_read _read
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# define UP_write _write
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# define UP_lseek _lseek
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# define UP_close _close
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# else
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# define UP_fileno fileno
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# define UP_open open
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# define UP_read read
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# define UP_write write
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# define UP_lseek lseek
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# define UP_close close
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# endif
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#endif
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