diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/xconnect.c | 60 |
1 files changed, 50 insertions, 10 deletions
diff --git a/libbb/xconnect.c b/libbb/xconnect.c index 6e85322..a5b16d9 100644 --- a/libbb/xconnect.c +++ b/libbb/xconnect.c @@ -83,8 +83,20 @@ int xconnect_tcp_v4(struct sockaddr_in *s_addr) /* "New" networking API */ -//extern int xsocket_stream_ip4or6(sa_family_t *fp); -//extern len_and_sockaddr* dotted2sockaddr(const char *dotted, int def_port); +void set_port(len_and_sockaddr *lsa, unsigned port) +{ +#if ENABLE_FEATURE_IPV6 + if (lsa->sa.sa_family == AF_INET6) { + lsa->sin6.sin6_port = port; + return; + } +#endif + if (lsa->sa.sa_family == AF_INET) { + lsa->sin.sin_port = port; + return; + } + /* What? UNIX socket? IPX?? :) */ +} /* peer: "1.2.3.4[:port]", "www.google.com[:port]" * port: if neither of above specifies port # @@ -96,7 +108,6 @@ static len_and_sockaddr* str2sockaddr(const char *host, int port, int ai_flags) struct addrinfo *result = NULL; const char *org_host = host; /* only for error msg */ const char *cp; - char service[sizeof(int)*3 + 1]; struct addrinfo hint; /* Ugly parsing of host:addr */ @@ -119,9 +130,7 @@ static len_and_sockaddr* str2sockaddr(const char *host, int port, int ai_flags) if (ENABLE_FEATURE_IPV6 && *cp != ':') cp++; /* skip ']' */ cp++; /* skip ':' */ - } else { - utoa_to_buf(port, service, sizeof(service)); - cp = service; + port = xatou16(cp); } memset(&hint, 0 , sizeof(hint)); @@ -132,13 +141,14 @@ static len_and_sockaddr* str2sockaddr(const char *host, int port, int ai_flags) /* Needed. Or else we will get each address thrice (or more) * for each possible socket type (tcp,udp,raw...): */ hint.ai_socktype = SOCK_STREAM; - hint.ai_flags = ai_flags | AI_NUMERICSERV; - rc = getaddrinfo(host, cp, &hint, &result); + hint.ai_flags = ai_flags; + rc = getaddrinfo(host, NULL, &hint, &result); if (rc || !result) bb_error_msg_and_die("bad address '%s'", org_host); r = xmalloc(offsetof(len_and_sockaddr, sa) + result->ai_addrlen); r->len = result->ai_addrlen; memcpy(&r->sa, result->ai_addr, result->ai_addrlen); + set_port(r, port); freeaddrinfo(result); return r; } @@ -153,7 +163,7 @@ static len_and_sockaddr* dotted2sockaddr(const char *host, int port) return str2sockaddr(host, port, NI_NUMERICHOST); } -static int xsocket_stream_ip4or6(len_and_sockaddr *lsa) +static int xsocket_stream(len_and_sockaddr *lsa) { int fd; #if ENABLE_FEATURE_IPV6 @@ -186,7 +196,7 @@ int create_and_bind_stream_or_die(const char *bindaddr, int port) USE_FEATURE_IPV6(sizeof(struct sockaddr_in6)) SKIP_FEATURE_IPV6(sizeof(struct sockaddr_in)) ); - fd = xsocket_stream_ip4or6(lsa); + fd = xsocket_stream(lsa); } setsockopt_reuseaddr(fd); xbind(fd, &lsa->sa, lsa->len); @@ -209,3 +219,33 @@ int create_and_connect_stream_or_die(const char *peer, int port) free(lsa); return fd; } + +int xconnect_stream(const len_and_sockaddr *lsa) +{ + int fd = xsocket(lsa->sa.sa_family, SOCK_STREAM, 0); + xconnect(fd, &lsa->sa, lsa->len); + return fd; +} + +static char* sockaddr2str(const struct sockaddr *sa, socklen_t salen, int flags) +{ + char host[128]; + char serv[16]; + int rc = getnameinfo(sa, salen, + host, sizeof(host), + serv, sizeof(serv), + flags | NI_NUMERICSERV /* do not resolve port# */ + ); + if (rc) return NULL; + return xasprintf("%s:%s", host, serv); +} + +char* xmalloc_sockaddr2host(const struct sockaddr *sa, socklen_t salen) +{ + return sockaddr2str(sa, salen, 0); +} + +char* xmalloc_sockaddr2dotted(const struct sockaddr *sa, socklen_t salen) +{ + return sockaddr2str(sa, salen, NI_NUMERICHOST); +} |