initial/final commitHEADmaster

1 files changed, 250 insertions, 0 deletions

diff --git a/openssl-1.1.0h/apps/s_socket.c b/openssl-1.1.0h/apps/s_socket.c
new file mode 100644
index 0000000..458aa86
--- /dev/null
+++ b/openssl-1.1.0h/apps/s_socket.c
@@ -0,0 +1,250 @@
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* socket-related functions used by s_client and s_server */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <openssl/opensslconf.h>
+
+/*
+ * With IPv6, it looks like Digital has mixed up the proper order of
+ * recursive header file inclusion, resulting in the compiler complaining
+ * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
+ * needed to have fileno() declared correctly...  So let's define u_int
+ */
+#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
+# define __U_INT
+typedef unsigned int u_int;
+#endif
+
+#ifndef OPENSSL_NO_SOCK
+
+# define USE_SOCKETS
+# include "apps.h"
+# undef USE_SOCKETS
+# include "s_apps.h"
+
+# include <openssl/bio.h>
+# include <openssl/err.h>
+
+/*
+ * init_client - helper routine to set up socket communication
+ * @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).
+ * @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
+ *
+ * This will create a socket and use it to connect to a host:port, or if
+ * family == AF_UNIX, to the path found in host.
+ *
+ * If the host has more than one address, it will try them one by one until
+ * a successful connection is established.  The resulting socket will be
+ * found in *sock on success, it will be given INVALID_SOCKET otherwise.
+ *
+ * Returns 1 on success, 0 on failure.
+ */
+int init_client(int *sock, const char *host, const char *port,
+                int family, int type)
+{
+    BIO_ADDRINFO *res = NULL;
+    const BIO_ADDRINFO *ai = NULL;
+    int ret;
+
+    if (!BIO_sock_init())
+        return 0;
+
+    ret = BIO_lookup(host, port, BIO_LOOKUP_CLIENT, family, type, &res);
+    if (ret == 0) {
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+
+    ret = 0;
+    for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) {
+        /* Admittedly, these checks are quite paranoid, we should not get
+         * anything in the BIO_ADDRINFO chain that we haven't
+         * asked for. */
+        OPENSSL_assert((family == AF_UNSPEC
+                        || family == BIO_ADDRINFO_family(ai))
+                       && (type == 0 || type == BIO_ADDRINFO_socktype(ai)));
+
+        *sock = BIO_socket(BIO_ADDRINFO_family(ai), BIO_ADDRINFO_socktype(ai),
+                           BIO_ADDRINFO_protocol(ai), 0);
+        if (*sock == INVALID_SOCKET) {
+            /* Maybe the kernel doesn't support the socket family, even if
+             * BIO_lookup() added it in the returned result...
+             */
+            continue;
+        }
+        if (!BIO_connect(*sock, BIO_ADDRINFO_address(ai), 0)) {
+            BIO_closesocket(*sock);
+            *sock = INVALID_SOCKET;
+            continue;
+        }
+
+        /* Success, don't try any more addresses */
+        break;
+    }
+
+    if (*sock == INVALID_SOCKET) {
+        ERR_print_errors(bio_err);
+    } else {
+        /* Remove any stale errors from previous connection attempts */
+        ERR_clear_error();
+        ret = 1;
+    }
+    BIO_ADDRINFO_free(res);
+    return ret;
+}
+
+/*
+ * do_server - helper routine to perform a server operation
+ * @accept_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).
+ * @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
+ * @cb: pointer to a function that receives the accepted socket and
+ *  should perform the communication with the connecting client.
+ * @context: pointer to memory that's passed verbatim to the cb function.
+ * @naccept: number of times an incoming connect should be accepted.  If -1,
+ *  unlimited number.
+ *
+ * This will create a socket and use it to listen to a host:port, or if
+ * family == AF_UNIX, to the path found in host, then start accepting
+ * incoming connections and run cb on the resulting socket.
+ *
+ * 0 on failure, something other on success.
+ */
+int do_server(int *accept_sock, const char *host, const char *port,
+              int family, int type, do_server_cb cb,
+              unsigned char *context, int naccept)
+{
+    int asock = 0;
+    int sock;
+    int i;
+    BIO_ADDRINFO *res = NULL;
+    const BIO_ADDRINFO *next;
+    int sock_family, sock_type, sock_protocol;
+    const BIO_ADDR *sock_address;
+    int sock_options = BIO_SOCK_REUSEADDR;
+    int ret = 0;
+
+    if (!BIO_sock_init())
+        return 0;
+
+    if (!BIO_lookup(host, port, BIO_LOOKUP_SERVER, family, type, &res)) {
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+
+    /* Admittedly, these checks are quite paranoid, we should not get
+     * anything in the BIO_ADDRINFO chain that we haven't asked for */
+    OPENSSL_assert((family == AF_UNSPEC || family == BIO_ADDRINFO_family(res))
+                   && (type == 0 || type == BIO_ADDRINFO_socktype(res)));
+
+    sock_family = BIO_ADDRINFO_family(res);
+    sock_type = BIO_ADDRINFO_socktype(res);
+    sock_protocol = BIO_ADDRINFO_protocol(res);
+    sock_address = BIO_ADDRINFO_address(res);
+    next = BIO_ADDRINFO_next(res);
+    if (sock_family == AF_INET6)
+        sock_options |= BIO_SOCK_V6_ONLY;
+    if (next != NULL
+            && BIO_ADDRINFO_socktype(next) == sock_type
+            && BIO_ADDRINFO_protocol(next) == sock_protocol) {
+        if (sock_family == AF_INET
+                && BIO_ADDRINFO_family(next) == AF_INET6) {
+            sock_family = AF_INET6;
+            sock_address = BIO_ADDRINFO_address(next);
+        } else if (sock_family == AF_INET6
+                   && BIO_ADDRINFO_family(next) == AF_INET) {
+            sock_options &= ~BIO_SOCK_V6_ONLY;
+        }
+    }
+
+    asock = BIO_socket(sock_family, sock_type, sock_protocol, 0);
+    if (asock == INVALID_SOCKET
+        || !BIO_listen(asock, sock_address, sock_options)) {
+        BIO_ADDRINFO_free(res);
+        ERR_print_errors(bio_err);
+        if (asock != INVALID_SOCKET)
+            BIO_closesocket(asock);
+        goto end;
+    }
+
+    BIO_ADDRINFO_free(res);
+    res = NULL;
+
+    if (accept_sock != NULL)
+        *accept_sock = asock;
+    for (;;) {
+        if (type == SOCK_STREAM) {
+            do {
+                sock = BIO_accept_ex(asock, NULL, 0);
+            } while (sock < 0 && BIO_sock_should_retry(sock));
+            if (sock < 0) {
+                ERR_print_errors(bio_err);
+                BIO_closesocket(asock);
+                break;
+            }
+            i = (*cb)(sock, type, context);
+
+            /*
+             * Give the socket time to send its last data before we close it.
+             * No amount of setting SO_LINGER etc on the socket seems to
+             * persuade Windows to send the data before closing the socket...
+             * but sleeping for a short time seems to do it (units in ms)
+             * TODO: Find a better way to do this
+             */
+#if defined(OPENSSL_SYS_WINDOWS)
+            Sleep(50);
+#elif defined(OPENSSL_SYS_CYGWIN)
+            usleep(50000);
+#endif
+
+            /*
+             * If we ended with an alert being sent, but still with data in the
+             * network buffer to be read, then calling BIO_closesocket() will
+             * result in a TCP-RST being sent. On some platforms (notably
+             * Windows) then this will result in the peer immediately abandoning
+             * the connection including any buffered alert data before it has
+             * had a chance to be read. Shutting down the sending side first,
+             * and then closing the socket sends TCP-FIN first followed by
+             * TCP-RST. This seems to allow the peer to read the alert data.
+             */
+            shutdown(sock, 1); /* SHUT_WR */
+            BIO_closesocket(sock);
+        } else {
+            i = (*cb)(asock, type, context);
+        }
+
+        if (naccept != -1)
+            naccept--;
+        if (i < 0 || naccept == 0) {
+            BIO_closesocket(asock);
+            ret = i;
+            break;
+        }
+    }
+ end:
+# ifdef AF_UNIX
+    if (family == AF_UNIX)
+        unlink(host);
+# endif
+    return ret;
+}
+
+#endif  /* OPENSSL_NO_SOCK */