diff options
Diffstat (limited to 'apps/s_socket.c')
-rw-r--r-- | apps/s_socket.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/apps/s_socket.c b/apps/s_socket.c index 485b419387..4b82011acd 100644 --- a/apps/s_socket.c +++ b/apps/s_socket.c @@ -43,6 +43,8 @@ BIO_ADDR *ourpeer = NULL; * @sock: pointer to storage of resulting socket. * @host: the host name or path (for AF_UNIX) to connect to. * @port: the port to connect to (ignored for AF_UNIX). + * @bindhost: source host or path (for AF_UNIX). + * @bindport: source port (ignored for AF_UNIX). * @family: desired socket family, may be AF_INET, AF_INET6, AF_UNIX or * AF_UNSPEC * @type: socket type, must be SOCK_STREAM or SOCK_DGRAM @@ -58,10 +60,14 @@ BIO_ADDR *ourpeer = NULL; * Returns 1 on success, 0 on failure. */ int init_client(int *sock, const char *host, const char *port, + const char *bindhost, const char *bindport, int family, int type, int protocol) { BIO_ADDRINFO *res = NULL; + BIO_ADDRINFO *bindaddr = NULL; const BIO_ADDRINFO *ai = NULL; + const BIO_ADDRINFO *bi = NULL; + int found = 0; int ret; if (BIO_sock_init() != 1) @@ -74,6 +80,15 @@ int init_client(int *sock, const char *host, const char *port, return 0; } + if (bindhost != NULL || bindport != NULL) { + ret = BIO_lookup_ex(bindhost, bindport, BIO_LOOKUP_CLIENT, + family, type, protocol, &bindaddr); + if (ret == 0) { + ERR_print_errors (bio_err); + goto out; + } + } + ret = 0; for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) { /* Admittedly, these checks are quite paranoid, we should not get @@ -85,6 +100,16 @@ int init_client(int *sock, const char *host, const char *port, && (protocol == 0 || protocol == BIO_ADDRINFO_protocol(ai))); + if (bindaddr != NULL) { + for (bi = bindaddr; bi != NULL; bi = BIO_ADDRINFO_next(bi)) { + if (BIO_ADDRINFO_family(bi) == BIO_ADDRINFO_family(ai)) + break; + } + if (bi == NULL) + continue; + ++found; + } + *sock = BIO_socket(BIO_ADDRINFO_family(ai), BIO_ADDRINFO_socktype(ai), BIO_ADDRINFO_protocol(ai), 0); if (*sock == INVALID_SOCKET) { @@ -94,6 +119,15 @@ int init_client(int *sock, const char *host, const char *port, continue; } + if (bi != NULL) { + if (!BIO_bind(*sock, BIO_ADDRINFO_address(bi), + BIO_SOCK_REUSEADDR)) { + BIO_closesocket(*sock); + *sock = INVALID_SOCKET; + break; + } + } + #ifndef OPENSSL_NO_SCTP if (protocol == IPPROTO_SCTP) { /* @@ -123,12 +157,27 @@ int init_client(int *sock, const char *host, const char *port, } if (*sock == INVALID_SOCKET) { + if (bindaddr != NULL && !found) { + BIO_printf(bio_err, "Can't bind %saddress for %s%s%s\n", + BIO_ADDRINFO_family(res) == AF_INET6 ? "IPv6 " : + BIO_ADDRINFO_family(res) == AF_INET ? "IPv4 " : + BIO_ADDRINFO_family(res) == AF_UNIX ? "unix " : "", + bindhost != NULL ? bindhost : "", + bindport != NULL ? ":" : "", + bindport != NULL ? bindport : ""); + ERR_clear_error(); + ret = 0; + } ERR_print_errors(bio_err); } else { /* Remove any stale errors from previous connection attempts */ ERR_clear_error(); ret = 1; } +out: + if (bindaddr != NULL) { + BIO_ADDRINFO_free (bindaddr); + } BIO_ADDRINFO_free(res); return ret; } |