Release libstrophe-0.9.2

We need it only in development versions. Let releases build with
warnings.

.gitignore

@@ -34,7 +34,6 @@ examples/active
 examples/basic
 examples/bot
 examples/component
-examples/ext_auth
 examples/roster
 examples/uuid
 examples/vcard

ChangeLog

@@ -8,6 +8,9 @@
 	  userdata
 	- System handlers are deleted on xmpp_conn_t reconnection. Old system
 	  handlers could cause problems
+	- Default timeout for xmpp_run() is increased from 1 millisecond to 1
+	  second in order to reduce CPU consumption
+	- Reduced memory usage in expat module
 	- New functions:
 		- xmpp_ctx_set_timeout()
 		- xmpp_sha1_digest()

Makefile.am

@@ -11,7 +11,7 @@ SSL_LIBS = @openssl_LIBS@
 
 RESOLV_LIBS = @RESOLV_LIBS@
 
-STROPHE_FLAGS = -I$(top_srcdir) -Wall -Wextra -Werror -Wno-unused-parameter
+STROPHE_FLAGS = -I$(top_srcdir) -Wall -Wextra -Wno-unused-parameter
 STROPHE_LIBS = libstrophe.la
 
 ## Main build targets
@@ -98,7 +98,6 @@ noinst_PROGRAMS = \
 	examples/basic \
 	examples/bot \
 	examples/component \
-	examples/ext_auth \
 	examples/roster \
 	examples/uuid \
 	examples/vcard
@@ -115,9 +114,6 @@ examples_bot_LDADD = $(STROPHE_LIBS)
 examples_component_SOURCES = examples/component.c
 examples_component_CFLAGS = $(STROPHE_FLAGS)
 examples_component_LDADD = $(STROPHE_LIBS)
-examples_ext_auth_SOURCES = examples/ext_auth.c
-examples_ext_auth_CFLAGS = $(STROPHE_FLAGS)
-examples_ext_auth_LDADD = $(STROPHE_LIBS)
 examples_roster_SOURCES = examples/roster.c
 examples_roster_CFLAGS = $(STROPHE_FLAGS)
 examples_roster_LDADD = $(STROPHE_LIBS)

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([libstrophe], [0.9.1], [jack@metajack.im])
+AC_INIT([libstrophe], [0.9.2], [jack@metajack.im])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([foreign])
 LT_INIT([dlopen])

examples/ext_auth.c

@@ -1,290 +0,0 @@
-/* ext_auth.c
- * strophe XMPP client library -- PLAIN mechanism example with a raw connection
- *
- * Copyright (C) 2016 Dmitry Podgorny <pasis.ua@gmail.com>
- *
- *  This software is provided AS-IS with no warranty, either express
- *  or implied.
- *
- *  This program is dual licensed under the MIT and GPLv3 licenses.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <strophe.h>
-
-typedef struct {
-    xmpp_ctx_t *ctx;
-    const char *jid;
-    const char *pass;
-    char *domain;
-    int authenticated;
-} xmpp_auth_t;
-
-#define FEATURES_TIMEOUT 5000 /* 5 seconds */
-
-static int _handle_error(xmpp_conn_t * const conn,
-                         xmpp_stanza_t * const stanza,
-                         void * const userdata)
-{
-    fprintf(stderr, "DEBUG: received stream error\n");
-    xmpp_disconnect(conn);
-
-    return 0;
-}
-
-static int _handle_proceedtls_default(xmpp_conn_t * const conn,
-                                      xmpp_stanza_t * const stanza,
-                                      void * const userdata)
-{
-    xmpp_auth_t *auth = (xmpp_auth_t *)userdata;
-    const char *name = xmpp_stanza_get_name(stanza);
-
-    (void)auth;
-    if (strcmp(name, "proceed") == 0) {
-        if (xmpp_conn_tls_start(conn) == 0) {
-            xmpp_handler_delete(conn, _handle_error);
-            xmpp_conn_open_stream_default(conn);
-        } else {
-            /* failed tls spoils the connection, so disconnect */
-            xmpp_disconnect(conn);
-        }
-    } else
-        xmpp_disconnect(conn);
-
-    return 0;
-}
-
-static int _plain_mechanim_exists(xmpp_ctx_t *ctx, xmpp_stanza_t *features)
-{
-    xmpp_stanza_t *mechanisms;
-    xmpp_stanza_t *child;
-    char *text;
-    int found = 0;
-
-    mechanisms = xmpp_stanza_get_child_by_name(features, "mechanisms");
-    child = mechanisms ? xmpp_stanza_get_children(mechanisms) : NULL;
-    while (!found && mechanisms && child) {
-        /* TODO xmpp_stanza_get_name(child) is "mechanism" */
-        text = xmpp_stanza_get_text(child);
-        found = text && strcmp(text, "PLAIN") == 0;
-        xmpp_free(ctx, text);
-        child = xmpp_stanza_get_next(child);
-    }
-    return found;
-}
-
-static char *_plain_mechanism_authdata(xmpp_auth_t *auth)
-{
-    char *node, *b64;
-    unsigned char *msg;
-    size_t node_len, pass_len;
-
-    node = xmpp_jid_node(auth->ctx, auth->jid);
-    node_len = strlen(node);
-    pass_len = strlen(auth->pass);
-    msg = malloc(node_len + pass_len + 2);
-    msg[0] = '\0';
-    memcpy(msg + 1, node, node_len);
-    msg[node_len + 1] = '\0';
-    memcpy(msg + node_len + 2, auth->pass, pass_len);
-    b64 = xmpp_base64_encode(auth->ctx, msg, node_len + pass_len + 2);
-
-    free(msg);
-    xmpp_free(auth->ctx, node);
-
-    return b64;
-}
-
-static int _plain_mechanism_handle_result(xmpp_conn_t * const conn,
-                                          xmpp_stanza_t * const stanza,
-                                          void * const userdata)
-{
-    xmpp_auth_t *auth = (xmpp_auth_t *)userdata;
-    const char *name;
-
-    name = xmpp_stanza_get_name(stanza);
-
-    if (strcmp(name, "success") == 0) {
-        /* SASL PLAIN auth successful, we need to restart the stream */
-        fprintf(stderr, "DEBUG: SASL PLAIN auth successful\n");
-        auth->authenticated = 1;
-        xmpp_handler_delete(conn, _handle_error);
-        xmpp_conn_open_stream_default(conn);
-    } else {
-        fprintf(stderr, "DEBUG: SASL authentication failed: %s\n", name);
-        xmpp_disconnect(conn);
-    }
-    return 0;
-}
-
-static int _handle_missing_features(xmpp_conn_t * const conn,
-                                    void * const userdata)
-{
-    fprintf(stderr, "DEBUG: timeout\n");
-    xmpp_disconnect(conn);
-
-    return 0;
-}
-
-static int _handle_features(xmpp_conn_t * const conn,
-                            xmpp_stanza_t * const stanza,
-                            void * const userdata)
-{
-    xmpp_auth_t *auth = (xmpp_auth_t *)userdata;
-    xmpp_ctx_t *ctx = auth->ctx;
-    xmpp_stanza_t *plain, *child;
-    char *str;
-
-    xmpp_timed_handler_delete(conn, _handle_missing_features);
-
-    if (auth->authenticated) {
-        /* after successful SASL authentication */
-        /* TODO bind, session and we'are done */
-        xmpp_disconnect(conn); /* XXX */
-        return 0;
-    }
-
-    /* secure connection if possible */
-    child = xmpp_stanza_get_child_by_name(stanza, "starttls");
-    if (child && (strcmp(xmpp_stanza_get_ns(child), XMPP_NS_TLS) == 0)) {
-        child = xmpp_stanza_new(ctx);
-        xmpp_stanza_set_name(child, "starttls");
-        xmpp_stanza_set_ns(child, XMPP_NS_TLS);
-        xmpp_handler_add(conn, _handle_proceedtls_default,
-                         XMPP_NS_TLS, NULL, NULL, userdata);
-        xmpp_send(conn, child);
-        xmpp_stanza_release(child);
-        return 0;
-    }
-
-    /* check if PLAIN mechanism is supported */
-    if (!_plain_mechanim_exists(ctx, stanza)) {
-        fprintf(stderr, "DEBUG: PLAIN mechanism is NOT supported\n");
-        xmpp_disconnect(conn);
-        return 0;
-    }
-
-    /* perform authentication */
-    plain = xmpp_stanza_new(ctx);
-    xmpp_stanza_set_name(plain, "auth");
-    xmpp_stanza_set_ns(plain, XMPP_NS_SASL);
-    xmpp_stanza_set_attribute(plain, "mechanism", "PLAIN");
-    str = _plain_mechanism_authdata(auth);
-    child = xmpp_stanza_new(ctx);
-    xmpp_stanza_set_text(child, str);
-    xmpp_free(ctx, str);
-    xmpp_stanza_add_child(plain, child);
-    xmpp_stanza_release(child);
-
-    xmpp_handler_add(conn, _plain_mechanism_handle_result,
-                     XMPP_NS_SASL, NULL, NULL, userdata);
-    xmpp_send(conn, plain);
-    xmpp_stanza_release(plain);
-
-    return 0;
-}
-
-static void conn_handler(xmpp_conn_t * const conn,
-                         const xmpp_conn_event_t status,
-                         const int error,
-                         xmpp_stream_error_t * const stream_error,
-                         void * const userdata)
-{
-    xmpp_auth_t *auth = (xmpp_auth_t *)userdata;
-    xmpp_ctx_t *ctx = auth->ctx;
-    int secured;
-
-    if (status == XMPP_CONN_RAW_CONNECT) {
-        fprintf(stderr, "DEBUG: raw connection established\n");
-        xmpp_conn_open_stream_default(conn);
-    } else if (status == XMPP_CONN_CONNECT) {
-        fprintf(stderr, "DEBUG: stream opened\n");
-        secured = xmpp_conn_is_secured(conn);
-        fprintf(stderr, "DEBUG: connection is %s.\n",
-                secured ? "secured" : "NOT secured");
-
-        /* setup handler for stream:error */
-        xmpp_handler_add(conn, _handle_error, XMPP_NS_STREAMS,
-                         "error", NULL, NULL);
-
-        /* setup handlers for incoming <stream:features> */
-        xmpp_handler_add(conn, _handle_features, XMPP_NS_STREAMS,
-                         "features", NULL, auth);
-        xmpp_timed_handler_add(conn, _handle_missing_features,
-                               FEATURES_TIMEOUT, NULL);
-    } else {
-        fprintf(stderr, "DEBUG: disconnected\n");
-        xmpp_stop(ctx);
-    }
-}
-
-static xmpp_auth_t *xmpp_auth_new(void)
-{
-    xmpp_auth_t *auth;
-
-    auth = malloc(sizeof(*auth));
-    if (auth != NULL) {
-        memset(auth, 0, sizeof(*auth));
-    }
-    return auth;
-}
-
-static void xmpp_auth_release(xmpp_auth_t *auth)
-{
-    free(auth);
-}
-
-int main(int argc, char **argv)
-{
-    xmpp_ctx_t *ctx;
-    xmpp_conn_t *conn;
-    xmpp_log_t *log;
-    xmpp_auth_t *auth;
-    const char *jid;
-    const char *pass;
-    const char *host = NULL;
-
-    if (argc < 3 || argc > 4) {
-        fprintf(stderr, "Usage: %s <jid> <pass> [<host>]\n", argv[0]);
-        return 1;
-    }
-
-    jid = argv[1];
-    pass = argv[2];
-    if (argc > 3)
-        host = argv[3];
-
-    /*
-     * Note, this example doesn't handle errors. Applications should check
-     * return values of non-void functions.
-     */
-
-    xmpp_initialize();
-    log = xmpp_get_default_logger(XMPP_LEVEL_DEBUG);
-    ctx = xmpp_ctx_new(NULL, log);
-    conn = xmpp_conn_new(ctx);
-
-    xmpp_conn_set_jid(conn, jid);
-
-    /* private data */
-    auth = xmpp_auth_new();
-    auth->ctx = ctx;
-    auth->jid = jid;
-    auth->pass = pass;
-    auth->domain = xmpp_jid_domain(ctx, jid);
-
-    xmpp_connect_raw(conn, host, 0, conn_handler, auth);
-    xmpp_run(ctx);
-
-    /* release private data */
-    xmpp_auth_release(auth);
-
-    xmpp_conn_release(conn);
-    xmpp_ctx_free(ctx);
-    xmpp_shutdown();
-
-    return 0;
-}

src/conn.c

@@ -73,6 +73,15 @@ static int _conn_connect(xmpp_conn_t * const conn,
                          xmpp_conn_handler callback,
                          void * const userdata);
 
+void xmpp_send_error(xmpp_conn_t * const conn, xmpp_error_type_t const type, char * const text)
+{
+    xmpp_stanza_t *error = xmpp_error_new(conn->ctx, type, text);
+
+    xmpp_send(conn, error);
+
+    xmpp_stanza_release(error);
+}
+
 /** Create a new Strophe connection object.
  *
  *  @param ctx a Strophe context object

src/crypto.c

@@ -61,7 +61,7 @@ static char *digest_to_string_alloc(xmpp_ctx_t *ctx, const uint8_t *digest)
     return s;
 }
 
-/** Compute SHA1 message digest
+/** Compute SHA1 message digest.
  *  Returns an allocated string which represents SHA1 message digest in
  *  hexadecimal notation. The string must be freed with xmpp_free().
  *
@@ -81,7 +81,7 @@ char *xmpp_sha1(xmpp_ctx_t *ctx, const unsigned char *data, size_t len)
     return digest_to_string_alloc(ctx, digest);
 }
 
-/** Compute SHA1 message digest
+/** Compute SHA1 message digest.
  *  Stores digest in user's buffer which must be at least XMPP_SHA1_DIGEST_SIZE
  *  bytes long.
  *
@@ -97,7 +97,7 @@ void xmpp_sha1_digest(const unsigned char *data, size_t len,
     crypto_SHA1((const uint8_t *)data, len, digest);
 }
 
-/** Create new SHA1 object
+/** Create new SHA1 object.
  *  SHA1 object is used to compute SHA1 digest of a buffer that is split
  *  in multiple chunks or provided in stream mode. A single buffer can be
  *  processed by short functions xmpp_sha1() and xmpp_sha1_digest().
@@ -111,7 +111,7 @@ void xmpp_sha1_digest(const unsigned char *data, size_t len,
  *      xmpp_sha1_free(sha1);
  *  @endcode
  *
- *  @param ctx a Strophe context onject
+ *  @param ctx a Strophe context object
  *
  *  @return new SHA1 object
  *
@@ -130,7 +130,7 @@ xmpp_sha1_t *xmpp_sha1_new(xmpp_ctx_t *ctx)
     return sha1;
 }
 
-/** Destroy SHA1 object
+/** Destroy SHA1 object.
  *
  *  @param sha1 a SHA1 object
  *
@@ -141,7 +141,7 @@ void xmpp_sha1_free(xmpp_sha1_t *sha1)
     xmpp_free(sha1->xmpp_ctx, sha1);
 }
 
-/** Update SHA1 context with the next portion of data
+/** Update SHA1 context with the next portion of data.
  *  Can be called repeatedly.
  *
  *  @param sha1 a SHA1 object
@@ -155,7 +155,7 @@ void xmpp_sha1_update(xmpp_sha1_t *sha1, const unsigned char *data, size_t len)
     crypto_SHA1_Update(&sha1->ctx, data, len);
 }
 
-/** Finish SHA1 computation
+/** Finish SHA1 computation.
  *  Don't call xmpp_sha1_update() after this function. Retrieve resulting
  *  message digest with xmpp_sha1_to_string() or xmpp_sha1_to_digest().
  *
@@ -168,7 +168,7 @@ void xmpp_sha1_final(xmpp_sha1_t *sha1)
     crypto_SHA1_Final(&sha1->ctx, sha1->digest);
 }
 
-/** Return message digest rendered as a string
+/** Return message digest rendered as a string.
  *  Stores the string to a user's buffer and returns the buffer. Call this
  *  function after xmpp_sha1_final().
  *
@@ -185,7 +185,7 @@ char *xmpp_sha1_to_string(xmpp_sha1_t *sha1, char *s, size_t slen)
     return digest_to_string(sha1->digest, s, slen);
 }
 
-/** Return message digest rendered as a string
+/** Return message digest rendered as a string.
  *  Returns an allocated string. Free the string using the Strophe context
  *  which is passed to xmpp_sha1_new(). Call this function after
  *  xmpp_sha1_final().
@@ -201,7 +201,7 @@ char *xmpp_sha1_to_string_alloc(xmpp_sha1_t *sha1)
     return digest_to_string_alloc(sha1->xmpp_ctx, sha1->digest);
 }
 
-/** Stores message digest to a user's buffer
+/** Stores message digest to a user's buffer.
  *
  *  @param sha1 a SHA1 object
  *  @param digest output buffer of XMPP_SHA1_DIGEST_SIZE bytes
@@ -419,7 +419,7 @@ _base64_error:
     *outlen = 0;
 }
 
-/** Base64 encoding routine
+/** Base64 encoding routine.
  *  Returns an allocated string which must be freed with xmpp_free().
  *
  *  @param ctx a Strophe context
@@ -435,7 +435,7 @@ char *xmpp_base64_encode(xmpp_ctx_t *ctx, const unsigned char *data, size_t len)
     return base64_encode(ctx, data, len);
 }
 
-/** Base64 decoding routine
+/** Base64 decoding routine.
  *  Returns an allocated string which must be freed with xmpp_free(). User
  *  calls this function when the result must be a string. When decoded buffer
  *  contains '\0' NULL is returned.
@@ -471,7 +471,7 @@ char *xmpp_base64_decode_str(xmpp_ctx_t *ctx, const char *base64, size_t len)
     return (char *)buf;
 }
 
-/** Base64 decoding routine
+/** Base64 decoding routine.
  *  Returns an allocated buffer which must be freed with xmpp_free().
  *
  *  @param ctx a Strophe context

src/event.c

@@ -262,10 +262,8 @@ void xmpp_run_once(xmpp_ctx_t *ctx, const unsigned long timeout)
                 if (ret > 0) {
                     ret = parser_feed(conn->parser, buf, ret);
                     if (!ret) {
-                        /* parse error, we need to shut down */
-                        /* FIXME */
-                        xmpp_debug(ctx, "xmpp", "parse error, disconnecting");
-                        conn_disconnect(conn);
+                        xmpp_debug(ctx, "xmpp", "parse error [%s]", buf);
+                        xmpp_send_error(conn, XMPP_SE_INVALID_XML, "parse error");
                     }
                 } else {
                     if (conn->tls) {

src/hash.c

@@ -241,7 +241,7 @@ void hash_iter_release(hash_iterator_t *iter)
 
     iter->ref--;
 
-    if (iter->ref <= 0) {
+    if (iter->ref == 0) { // ref is unsigned!!!
 	hash_release(iter->table);
 	xmpp_free(ctx, iter);
     }

src/parser_libxml2.c

@@ -249,6 +249,8 @@ void parser_free(parser_t *parser)
 {
     if (parser->xmlctx)
         xmlFreeParserCtxt(parser->xmlctx);
+    if (parser->stanza)
+        xmpp_stanza_release(parser->stanza);
     xmpp_free(parser->ctx, parser);
 }
 
@@ -257,18 +259,16 @@ int parser_reset(parser_t *parser)
 {
     if (parser->xmlctx)
         xmlFreeParserCtxt(parser->xmlctx);
-
     if (parser->stanza) 
 	xmpp_stanza_release(parser->stanza);
 
+    parser->stanza = NULL;
+    parser->depth = 0;
+
     parser->xmlctx = xmlCreatePushParserCtxt(&parser->handlers, 
                                              parser, NULL, 0, NULL);
-    if (!parser->xmlctx) return 0;
 
-    parser->depth = 0;
-    parser->stanza = NULL;
-
-    return 1;
+    return parser->xmlctx ? 1 : 0;
 }
 
 /* feed a chunk of data to the parser */

src/resolver.c

@@ -517,7 +517,7 @@ static int resolver_win32_srv_query(const char *fulldomain,
                                     unsigned char *buf, size_t len)
 {
     int set = 0;
-    int insize;
+    int insize = 0;
 
     /* if dnsapi didn't work/isn't there, try querying the dns server manually */
     if (!set)
@@ -550,7 +550,7 @@ static int resolver_win32_srv_query(const char *fulldomain,
 				char buffer[65535];
 
 				len = 65535;
-				fi = buffer;
+				fi = (FIXED_INFO *)buffer;
 
 				if ((error = pGetNetworkParams(fi, &len)) == ERROR_SUCCESS)
 				{

src/sasl.c

@@ -264,7 +264,8 @@ char *sasl_digest_md5(xmpp_ctx_t *ctx, const char *challenge,
     xmpp_rand_nonce(ctx->rand, cnonce, sizeof(cnonce));
     hash_add(table, "cnonce", xmpp_strdup(ctx, cnonce));
     hash_add(table, "nc", xmpp_strdup(ctx, "00000001"));
-    hash_add(table, "qop", xmpp_strdup(ctx, "auth"));
+    if (hash_get(table, "qop") == NULL)
+        hash_add(table, "qop", xmpp_strdup(ctx, "auth"));
     value = xmpp_alloc(ctx, 5 + strlen(domain) + 1);
     memcpy(value, "xmpp/", 5);
     memcpy(value+5, domain, strlen(domain));

src/stanza.c

@@ -1,7 +1,7 @@
 /* stanza.c
 ** strophe XMPP client library -- XMPP stanza object and utilities
 **
-** Copyright (C) 2005-2009 Collecta, Inc. 
+** Copyright (C) 2005-2009 Collecta, Inc.
 **
 **  This software is provided AS-IS with no warranty, either express
 **  or implied.
@@ -40,15 +40,15 @@ xmpp_stanza_t *xmpp_stanza_new(xmpp_ctx_t *ctx)
 
     stanza = xmpp_alloc(ctx, sizeof(xmpp_stanza_t));
     if (stanza != NULL) {
-	stanza->ref = 1;
-	stanza->ctx = ctx;
-	stanza->type = XMPP_STANZA_UNKNOWN;
-	stanza->prev = NULL;
-	stanza->next = NULL;
-	stanza->children = NULL;
-	stanza->parent = NULL;
-	stanza->data = NULL;
-	stanza->attributes = NULL;
+        stanza->ref = 1;
+        stanza->ctx = ctx;
+        stanza->type = XMPP_STANZA_UNKNOWN;
+        stanza->prev = NULL;
+        stanza->next = NULL;
+        stanza->children = NULL;
+        stanza->parent = NULL;
+        stanza->data = NULL;
+        stanza->attributes = NULL;
     }
 
     return stanza; 
@@ -121,27 +121,27 @@ xmpp_stanza_t *xmpp_stanza_copy(const xmpp_stanza_t * const stanza)
     copy->type = stanza->type;
 
     if (stanza->data) {
-	copy->data = xmpp_strdup(stanza->ctx, stanza->data);
-	if (!copy->data) goto copy_error;
+        copy->data = xmpp_strdup(stanza->ctx, stanza->data);
+        if (!copy->data) goto copy_error;
     }
 
     if (stanza->attributes) {
-	if (_stanza_copy_attributes(copy, stanza) == -1)
+        if (_stanza_copy_attributes(copy, stanza) == -1)
             goto copy_error;
     }
 
     tail = copy->children;
     for (child = stanza->children; child; child = child->next) {
-	copychild = xmpp_stanza_copy(child);
-	if (!copychild) goto copy_error;
-	copychild->parent = copy;
+        copychild = xmpp_stanza_copy(child);
+        if (!copychild) goto copy_error;
+        copychild->parent = copy;
 
-	if (tail) {
-	    copychild->prev = tail;
-	    tail->next = copychild;
-	} else
-	    copy->children = copychild;
-	tail = copychild;
+        if (tail) {
+            copychild->prev = tail;
+            tail->next = copychild;
+        } else
+            copy->children = copychild;
+        tail = copychild;
     }
 
     return copy;
@@ -153,7 +153,7 @@ copy_error:
 }
 
 /** Release a stanza object and all of its children.
- *  This function releases a stanza object and potentially all of its 
+ *  This function releases a stanza object and potentially all of its
  *  children, which may cause the object(s) to be freed.
  *
  *  @param stanza a Strophe stanza object
@@ -169,20 +169,20 @@ int xmpp_stanza_release(xmpp_stanza_t * const stanza)
 
     /* release stanza */
     if (stanza->ref > 1)
-	stanza->ref--;
+        stanza->ref--;
     else {
-	/* release all children */
-	child = stanza->children;
-	while (child) {
-	    tchild = child;
-	    child = child->next;
-	    xmpp_stanza_release(tchild);
-	}
+        /* release all children */
+        child = stanza->children;
+        while (child) {
+            tchild = child;
+            child = child->next;
+            xmpp_stanza_release(tchild);
+        }
 
-	if (stanza->attributes) hash_release(stanza->attributes);
-	if (stanza->data) xmpp_free(stanza->ctx, stanza->data);
-	xmpp_free(stanza->ctx, stanza);
-	released = 1;
+        if (stanza->attributes) hash_release(stanza->attributes);
+        if (stanza->data) xmpp_free(stanza->ctx, stanza->data);
+        xmpp_free(stanza->ctx, stanza);
+        released = 1;
     }
 
     return released;
@@ -274,17 +274,17 @@ static char *_escape_xml(xmpp_ctx_t * const ctx, char *text)
 
 /* small helper function */
 static void _render_update(int *written, const int length,
-			   const int lastwrite,
-			   size_t *left, char **ptr)
+                           const int lastwrite,
+                           size_t *left, char **ptr)
 {
     *written += lastwrite;
 
     if (*written >= length) {
-	*left = 0;
-	*ptr = NULL;
+        *left = 0;
+        *ptr = NULL;
     } else {
-	*left -= lastwrite;
-	*ptr = &(*ptr)[lastwrite];
+        *left -= lastwrite;
+        *ptr = &(*ptr)[lastwrite];
     }
 }
 
@@ -294,7 +294,7 @@ static void _render_update(int *written, const int length,
  * and return values > buflen indicate buffer was not large enough
  */
 static int _render_stanza_recursive(xmpp_stanza_t *stanza,
-			     char * const buf, size_t const buflen)
+                             char * const buf, size_t const buflen)
 {
     char *ptr = buf;
     size_t left = buflen;
@@ -309,80 +309,80 @@ static int _render_stanza_recursive(xmpp_stanza_t *stanza,
     if (stanza->type == XMPP_STANZA_UNKNOWN) return XMPP_EINVOP;
 
     if (stanza->type == XMPP_STANZA_TEXT) {
-	if (!stanza->data) return XMPP_EINVOP;
+        if (!stanza->data) return XMPP_EINVOP;
 
-	tmp = _escape_xml(stanza->ctx, stanza->data);
-	if (tmp == NULL) return XMPP_EMEM;
-	ret = xmpp_snprintf(ptr, left, "%s", tmp);
-	xmpp_free(stanza->ctx, tmp);
-	if (ret < 0) return XMPP_EMEM;
-	_render_update(&written, buflen, ret, &left, &ptr);
+        tmp = _escape_xml(stanza->ctx, stanza->data);
+        if (tmp == NULL) return XMPP_EMEM;
+        ret = xmpp_snprintf(ptr, left, "%s", tmp);
+        xmpp_free(stanza->ctx, tmp);
+        if (ret < 0) return XMPP_EMEM;
+        _render_update(&written, buflen, ret, &left, &ptr);
     } else { /* stanza->type == XMPP_STANZA_TAG */
-	if (!stanza->data) return XMPP_EINVOP;
+        if (!stanza->data) return XMPP_EINVOP;
 
-	/* write beginning of tag and attributes */
-	ret = xmpp_snprintf(ptr, left, "<%s", stanza->data);
-	if (ret < 0) return XMPP_EMEM;
-	_render_update(&written, buflen, ret, &left, &ptr);
+        /* write beginning of tag and attributes */
+        ret = xmpp_snprintf(ptr, left, "<%s", stanza->data);
+        if (ret < 0) return XMPP_EMEM;
+        _render_update(&written, buflen, ret, &left, &ptr);
 
-	if (stanza->attributes && hash_num_keys(stanza->attributes) > 0) {
-	    iter = hash_iter_new(stanza->attributes);
-	    while ((key = hash_iter_next(iter))) {
-		if (!strcmp(key, "xmlns")) {
-		    /* don't output namespace if parent stanza is the same */
-		    if (stanza->parent &&
-			stanza->parent->attributes &&
-			hash_get(stanza->parent->attributes, key) &&
-			!strcmp((char*)hash_get(stanza->attributes, key),
-			    (char*)hash_get(stanza->parent->attributes, key)))
-			continue;
-		    /* or if this is the stream namespace */
-		    if (!stanza->parent &&
-			!strcmp((char*)hash_get(stanza->attributes, key),
-			    XMPP_NS_CLIENT))
-			continue;
-		}
-		tmp = _escape_xml(stanza->ctx,
-		    (char *)hash_get(stanza->attributes, key));
-		if (tmp == NULL) return XMPP_EMEM;
-		ret = xmpp_snprintf(ptr, left, " %s=\"%s\"", key, tmp);
-		xmpp_free(stanza->ctx, tmp);
-		if (ret < 0) return XMPP_EMEM;
-		_render_update(&written, buflen, ret, &left, &ptr);
-	    }
-	    hash_iter_release(iter);
-	}
+        if (stanza->attributes && hash_num_keys(stanza->attributes) > 0) {
+            iter = hash_iter_new(stanza->attributes);
+            while ((key = hash_iter_next(iter))) {
+                if (!strcmp(key, "xmlns")) {
+                    /* don't output namespace if parent stanza is the same */
+                    if (stanza->parent &&
+                        stanza->parent->attributes &&
+                        hash_get(stanza->parent->attributes, key) &&
+                        !strcmp((char*)hash_get(stanza->attributes, key),
+                            (char*)hash_get(stanza->parent->attributes, key)))
+                        continue;
+                    /* or if this is the stream namespace */
+                    if (!stanza->parent &&
+                        !strcmp((char*)hash_get(stanza->attributes, key),
+                            XMPP_NS_CLIENT))
+                        continue;
+                }
+                tmp = _escape_xml(stanza->ctx,
+                    (char *)hash_get(stanza->attributes, key));
+                if (tmp == NULL) return XMPP_EMEM;
+                ret = xmpp_snprintf(ptr, left, " %s=\"%s\"", key, tmp);
+                xmpp_free(stanza->ctx, tmp);
+                if (ret < 0) return XMPP_EMEM;
+                _render_update(&written, buflen, ret, &left, &ptr);
+            }
+            hash_iter_release(iter);
+        }
 
-	if (!stanza->children) {
-	    /* write end if singleton tag */
-	    ret = xmpp_snprintf(ptr, left, "/>");
-	    if (ret < 0) return XMPP_EMEM;
-	    _render_update(&written, buflen, ret, &left, &ptr);
-	} else {
-	    /* this stanza has child stanzas */
+        if (!stanza->children) {
+            /* write end if singleton tag */
+            ret = xmpp_snprintf(ptr, left, "/>");
+            if (ret < 0) return XMPP_EMEM;
+            _render_update(&written, buflen, ret, &left, &ptr);
+        } else {
+            /* this stanza has child stanzas */
 
-	    /* write end of start tag */
-	    ret = xmpp_snprintf(ptr, left, ">");
-	    if (ret < 0) return XMPP_EMEM;
-	    _render_update(&written, buflen, ret, &left, &ptr);
-	    
-	    /* iterate and recurse over child stanzas */
-	    child = stanza->children;
-	    while (child) {
-		ret = _render_stanza_recursive(child, ptr, left);
-		if (ret < 0) return ret;
+            /* write end of start tag */
+            ret = xmpp_snprintf(ptr, left, ">");
+            if (ret < 0) return XMPP_EMEM;
+            _render_update(&written, buflen, ret, &left, &ptr);
 
-		_render_update(&written, buflen, ret, &left, &ptr);
+            /* iterate and recurse over child stanzas */
+            child = stanza->children;
+            while (child) {
+                ret = _render_stanza_recursive(child, ptr, left);
+                if (ret < 0) return ret;
 
-		child = child->next;
-	    }
+                _render_update(&written, buflen, ret, &left, &ptr);
 
-	    /* write end tag */
-	    ret = xmpp_snprintf(ptr, left, "</%s>", stanza->data);
-	    if (ret < 0) return XMPP_EMEM;
-	    
-	    _render_update(&written, buflen, ret, &left, &ptr);
-	}
+                child = child->next;
+            }
+
+            /* write end tag */
+            ret = xmpp_snprintf(ptr, left, "</%s>", stanza->data);
+            if (ret < 0) return XMPP_EMEM;
+
+            _render_update(&written, buflen, ret, &left, &ptr);
+        }
     }
 
     return written;
@@ -415,27 +415,27 @@ int xmpp_stanza_to_text(xmpp_stanza_t *stanza,
     length = 1024;
     buffer = xmpp_alloc(stanza->ctx, length);
     if (!buffer) {
-	*buf = NULL;
-	*buflen = 0;
-	return XMPP_EMEM;
+        *buf = NULL;
+        *buflen = 0;
+        return XMPP_EMEM;
     }
 
     ret = _render_stanza_recursive(stanza, buffer, length);
     if (ret < 0) return ret;
 
     if ((size_t)ret > length - 1) {
-	tmp = xmpp_realloc(stanza->ctx, buffer, ret + 1);
-	if (!tmp) {
-	    xmpp_free(stanza->ctx, buffer);
-	    *buf = NULL;
-	    *buflen = 0;
-	    return XMPP_EMEM;
-	}
-	length = ret + 1;
-	buffer = tmp;
+        tmp = xmpp_realloc(stanza->ctx, buffer, ret + 1);
+        if (!tmp) {
+            xmpp_free(stanza->ctx, buffer);
+            *buf = NULL;
+            *buflen = 0;
+            return XMPP_EMEM;
+        }
+        length = ret + 1;
+        buffer = tmp;
 
-	ret = _render_stanza_recursive(stanza, buffer, length);
-	if ((size_t)ret > length - 1) return XMPP_EMEM;
+        ret = _render_stanza_recursive(stanza, buffer, length);
+        if ((size_t)ret > length - 1) return XMPP_EMEM;
     }
     
     buffer[length - 1] = 0;
@@ -457,7 +457,7 @@ int xmpp_stanza_to_text(xmpp_stanza_t *stanza,
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_name(xmpp_stanza_t *stanza, 
-			 const char * const name)
+                         const char * const name)
 {
     if (stanza->type == XMPP_STANZA_TEXT) return XMPP_EINVOP;
 
@@ -496,7 +496,7 @@ const char *xmpp_stanza_get_name(xmpp_stanza_t * const stanza)
 int xmpp_stanza_get_attribute_count(xmpp_stanza_t * const stanza)
 {
     if (stanza->attributes == NULL) {
-	return 0;
+        return 0;
     }
 
     return hash_num_keys(stanza->attributes);
@@ -517,30 +517,30 @@ int xmpp_stanza_get_attribute_count(xmpp_stanza_t * const stanza)
  *  @ingroup Stanza
  */
 int xmpp_stanza_get_attributes(xmpp_stanza_t * const stanza,
-			       const char **attr, int attrlen)
+                               const char **attr, int attrlen)
 {
     hash_iterator_t *iter;
     const char *key;
     int num = 0;
 
     if (stanza->attributes == NULL) {
-	return 0;
+        return 0;
     }
 
     iter = hash_iter_new(stanza->attributes);
     while ((key = hash_iter_next(iter)) != NULL && attrlen) {
-	attr[num++] = key;
-	attrlen--;
-	if (attrlen == 0) {
-	    hash_iter_release(iter);
-	    return num;
-	}
-	attr[num++] = hash_get(stanza->attributes, key);
-	attrlen--;
-	if (attrlen == 0) {
-	    hash_iter_release(iter);
-	    return num;
-	}
+        attr[num++] = key;
+        attrlen--;
+        if (attrlen == 0) {
+            hash_iter_release(iter);
+            return num;
+        }
+        attr[num++] = hash_get(stanza->attributes, key);
+        attrlen--;
+        if (attrlen == 0) {
+            hash_iter_release(iter);
+            return num;
+        }
     }
 
     hash_iter_release(iter);
@@ -558,8 +558,8 @@ int xmpp_stanza_get_attributes(xmpp_stanza_t * const stanza,
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_attribute(xmpp_stanza_t * const stanza,
-			      const char * const key,
-			      const char * const value)
+                              const char * const key,
+                              const char * const value)
 {
     char *val;
     int rc;
@@ -567,8 +567,8 @@ int xmpp_stanza_set_attribute(xmpp_stanza_t * const stanza,
     if (stanza->type != XMPP_STANZA_TAG) return XMPP_EINVOP;
 
     if (!stanza->attributes) {
-	stanza->attributes = hash_new(stanza->ctx, 8, xmpp_free);
-	if (!stanza->attributes) return XMPP_EMEM;
+        stanza->attributes = hash_new(stanza->ctx, 8, xmpp_free);
+        if (!stanza->attributes) return XMPP_EMEM;
     }
 
     val = xmpp_strdup(stanza->ctx, value);
@@ -598,7 +598,7 @@ int xmpp_stanza_set_attribute(xmpp_stanza_t * const stanza,
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_ns(xmpp_stanza_t * const stanza,
-		       const char * const ns)
+                       const char * const ns)
 {
     return xmpp_stanza_set_attribute(stanza, "xmlns", ns);
 }
@@ -624,12 +624,12 @@ int xmpp_stanza_add_child(xmpp_stanza_t *stanza, xmpp_stanza_t *child)
     child->parent = stanza;
 
     if (!stanza->children)
-	stanza->children = child;
+        stanza->children = child;
     else {
-	s = stanza->children;
-	while (s->next) s = s->next;
-	s->next = child;
-	child->prev = s;
+        s = stanza->children;
+        while (s->next) s = s->next;
+        s->next = child;
+        child->prev = s;
     }
 
     return XMPP_EOK;
@@ -649,7 +649,7 @@ int xmpp_stanza_add_child(xmpp_stanza_t *stanza, xmpp_stanza_t *child)
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_text(xmpp_stanza_t *stanza,
-			 const char * const text)
+                         const char * const text)
 {
     if (stanza->type == XMPP_STANZA_TAG) return XMPP_EINVOP;
     
@@ -676,8 +676,8 @@ int xmpp_stanza_set_text(xmpp_stanza_t *stanza,
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_text_with_size(xmpp_stanza_t *stanza,
-				   const char * const text,
-				   const size_t size)
+                                   const char * const text,
+                                   const size_t size)
 {
     if (stanza->type == XMPP_STANZA_TAG) return XMPP_EINVOP;
 
@@ -780,14 +780,14 @@ const char *xmpp_stanza_get_from(xmpp_stanza_t * const stanza)
  *  @ingroup Stanza
  */
 xmpp_stanza_t *xmpp_stanza_get_child_by_name(xmpp_stanza_t * const stanza, 
-					     const char * const name)
+                                             const char * const name)
 {
     xmpp_stanza_t *child;
     
     for (child = stanza->children; child; child = child->next) {
-	if (child->type == XMPP_STANZA_TAG &&
-	    (strcmp(name, xmpp_stanza_get_name(child)) == 0))
-	    break;
+        if (child->type == XMPP_STANZA_TAG &&
+            (strcmp(name, xmpp_stanza_get_name(child)) == 0))
+            break;
     }
 
     return child;
@@ -806,14 +806,14 @@ xmpp_stanza_t *xmpp_stanza_get_child_by_name(xmpp_stanza_t * const stanza,
  *  @ingroup Stanza
  */
 xmpp_stanza_t *xmpp_stanza_get_child_by_ns(xmpp_stanza_t * const stanza,
-					   const char * const ns)
+                                           const char * const ns)
 {
     xmpp_stanza_t *child;
 
     for (child = stanza->children; child; child = child->next) {
-	if (xmpp_stanza_get_ns(child) &&
-	    strcmp(ns, xmpp_stanza_get_ns(child)) == 0)
-	    break;
+        if (xmpp_stanza_get_ns(child) &&
+            strcmp(ns, xmpp_stanza_get_ns(child)) == 0)
+            break;
     }
     
     return child;
@@ -866,16 +866,16 @@ char *xmpp_stanza_get_text(xmpp_stanza_t * const stanza)
     char *text;
 
     if (stanza->type == XMPP_STANZA_TEXT) {
-	if (stanza->data)
-	    return xmpp_strdup(stanza->ctx, stanza->data);
-	else
-	    return NULL;
+        if (stanza->data)
+            return xmpp_strdup(stanza->ctx, stanza->data);
+        else
+            return NULL;
     }
 
     len = 0;
     for (child = stanza->children; child; child = child->next)
-	if (child->type == XMPP_STANZA_TEXT)
-	    len += strlen(child->data);
+        if (child->type == XMPP_STANZA_TEXT)
+            len += strlen(child->data);
 
     if (len == 0) return NULL;
 
@@ -884,11 +884,11 @@ char *xmpp_stanza_get_text(xmpp_stanza_t * const stanza)
 
     len = 0;
     for (child = stanza->children; child; child = child->next)
-	if (child->type == XMPP_STANZA_TEXT) {
-	    clen = strlen(child->data);
-	    memcpy(&text[len], child->data, clen);
-	    len += clen;
-	}
+        if (child->type == XMPP_STANZA_TEXT) {
+            clen = strlen(child->data);
+            memcpy(&text[len], child->data, clen);
+            len += clen;
+        }
 
     text[len] = 0;
 
@@ -911,7 +911,7 @@ char *xmpp_stanza_get_text(xmpp_stanza_t * const stanza)
 const char *xmpp_stanza_get_text_ptr(xmpp_stanza_t * const stanza)
 {
     if (stanza->type == XMPP_STANZA_TEXT)
-	return stanza->data;
+        return stanza->data;
     return NULL;
 }
 
@@ -928,7 +928,7 @@ const char *xmpp_stanza_get_text_ptr(xmpp_stanza_t * const stanza)
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_id(xmpp_stanza_t * const stanza,
-		       const char * const id)
+                       const char * const id)
 {
     return xmpp_stanza_set_attribute(stanza, "id", id);
 }
@@ -945,7 +945,7 @@ int xmpp_stanza_set_id(xmpp_stanza_t * const stanza,
  *  @ingroup Stanza
  */
 int xmpp_stanza_set_type(xmpp_stanza_t * const stanza,
-			 const char * const type)
+                         const char * const type)
 {
     return xmpp_stanza_set_attribute(stanza, "type", type);
 }
@@ -1001,10 +1001,10 @@ const char *xmpp_stanza_get_attribute(xmpp_stanza_t * const stanza,
                                       const char * const name)
 {
     if (stanza->type != XMPP_STANZA_TAG)
-	return NULL;
+        return NULL;
     
     if (!stanza->attributes)
-	return NULL;
+        return NULL;
 
     return hash_get(stanza->attributes, name);
 }
@@ -1218,3 +1218,122 @@ xmpp_stanza_t *xmpp_presence_new(xmpp_ctx_t *ctx)
 {
     return _stanza_new_with_attrs(ctx, "presence", NULL, NULL, NULL);
 }
+
+/** Create an <stream:error/> stanza object with given type and error text.
+ *  The error text is optional and may be NULL.
+ *
+ *  @param ctx a Strophe context object
+ *  @param type enum of xmpp_error_type_t
+ *  @param text content of a 'text'
+ *
+ *  @return a new Strophe stanza object
+ *
+ *  @todo Handle errors in this function
+ *
+ *  @ingroup Stanza
+ */
+xmpp_stanza_t *xmpp_error_new(xmpp_ctx_t *ctx, xmpp_error_type_t const type,
+                              const char * const text)
+{
+    xmpp_stanza_t *error = _stanza_new_with_attrs(ctx, "stream:error", NULL, NULL, NULL);
+    xmpp_stanza_t *error_type = xmpp_stanza_new(ctx);
+
+    switch(type) {
+        case XMPP_SE_BAD_FORMAT:
+            xmpp_stanza_set_name(error_type, "bad-format");
+            break;
+        case XMPP_SE_BAD_NS_PREFIX:
+            xmpp_stanza_set_name(error_type, "bad-namespace-prefix");
+            break;
+        case XMPP_SE_CONFLICT:
+            xmpp_stanza_set_name(error_type, "conflict");
+            break;
+        case XMPP_SE_CONN_TIMEOUT:
+            xmpp_stanza_set_name(error_type, "connection-timeout");
+            break;
+        case XMPP_SE_HOST_GONE:
+            xmpp_stanza_set_name(error_type, "host-gone");
+            break;
+        case XMPP_SE_HOST_UNKNOWN:
+            xmpp_stanza_set_name(error_type, "host-unknown");
+            break;
+        case XMPP_SE_IMPROPER_ADDR:
+            xmpp_stanza_set_name(error_type, "improper-addressing");
+            break;
+        case XMPP_SE_INTERNAL_SERVER_ERROR:
+            xmpp_stanza_set_name(error_type, "internal-server-error");
+            break;
+        case XMPP_SE_INVALID_FROM:
+            xmpp_stanza_set_name(error_type, "invalid-from");
+            break;
+        case XMPP_SE_INVALID_ID:
+            xmpp_stanza_set_name(error_type, "invalid-id");
+            break;
+        case XMPP_SE_INVALID_NS:
+            xmpp_stanza_set_name(error_type, "invalid-namespace");
+            break;
+        case XMPP_SE_INVALID_XML:
+            xmpp_stanza_set_name(error_type, "invalid-xml");
+            break;
+        case XMPP_SE_NOT_AUTHORIZED:
+            xmpp_stanza_set_name(error_type, "not-authorized");
+            break;
+        case XMPP_SE_POLICY_VIOLATION:
+            xmpp_stanza_set_name(error_type, "policy-violation");
+            break;
+        case XMPP_SE_REMOTE_CONN_FAILED:
+            xmpp_stanza_set_name(error_type, "remote-connection-failed");
+            break;
+        case XMPP_SE_RESOURCE_CONSTRAINT:
+            xmpp_stanza_set_name(error_type, "resource-constraint");
+            break;
+        case XMPP_SE_RESTRICTED_XML:
+            xmpp_stanza_set_name(error_type, "restricted-xml");
+            break;
+        case XMPP_SE_SEE_OTHER_HOST:
+            xmpp_stanza_set_name(error_type, "see-other-host");
+            break;
+        case XMPP_SE_SYSTEM_SHUTDOWN:
+            xmpp_stanza_set_name(error_type, "system-shutdown");
+            break;
+        case XMPP_SE_UNDEFINED_CONDITION:
+            xmpp_stanza_set_name(error_type, "undefined-condition");
+            break;
+        case XMPP_SE_UNSUPPORTED_ENCODING:
+            xmpp_stanza_set_name(error_type, "unsupported-encoding");
+            break;
+        case XMPP_SE_UNSUPPORTED_STANZA_TYPE:
+            xmpp_stanza_set_name(error_type, "unsupported-stanza-type");
+            break;
+        case XMPP_SE_UNSUPPORTED_VERSION:
+            xmpp_stanza_set_name(error_type, "unsupported-version");
+            break;
+        case XMPP_SE_XML_NOT_WELL_FORMED:
+            xmpp_stanza_set_name(error_type, "xml-not-well-formed");
+            break;
+        default:
+            xmpp_stanza_set_name(error_type, "internal-server-error");
+            break;
+    }
+
+    xmpp_stanza_set_ns(error_type, XMPP_NS_STREAMS_IETF);
+    xmpp_stanza_add_child(error, error_type);
+    xmpp_stanza_release(error_type);
+
+    if (text) {
+        xmpp_stanza_t *error_text = xmpp_stanza_new(ctx);
+        xmpp_stanza_t *content = xmpp_stanza_new(ctx);
+
+        xmpp_stanza_set_name(error_text, "text");
+        xmpp_stanza_set_ns(error_text, XMPP_NS_STREAMS_IETF);
+
+        xmpp_stanza_set_text(content, text);
+        xmpp_stanza_add_child(error_text, content);
+        xmpp_stanza_release(content);
+
+        xmpp_stanza_add_child(error, error_text);
+        xmpp_stanza_release(error_text);
+    }
+
+    return error;
+}

src/tls_openssl.c

@@ -209,6 +209,14 @@ int tls_stop(tls_t *tls)
         }
         _tls_sock_wait(tls, error);
     }
+    if (error == SSL_ERROR_SYSCALL && errno == 0) {
+        /*
+         * Handle special case when peer closes connection instead of
+         * proper shutdown.
+         */
+        error = 0;
+        ret = 1;
+    }
     _tls_set_error(tls, error);
 
     return ret <= 0 ? 0 : 1;
@@ -260,6 +268,8 @@ static void _tls_sock_wait(tls_t *tls, int error)
     int nfds;
     int ret;
 
+    if (error == SSL_ERROR_NONE) return;
+
     FD_ZERO(&rfds);
     FD_ZERO(&wfds);
     if (error == SSL_ERROR_WANT_READ)
@@ -278,6 +288,7 @@ static void _tls_sock_wait(tls_t *tls, int error)
 static void _tls_set_error(tls_t *tls, int error)
 {
     if (error != 0 && !tls_is_recoverable(error)) {
+        xmpp_debug(tls->ctx, "tls", "error=%d errno=%d", error, errno);
         _tls_log_error(tls->ctx);
     }
     tls->lasterror = error;

strophe.h

@@ -217,6 +217,7 @@ typedef void (*xmpp_conn_handler)(xmpp_conn_t * const conn,
 				  xmpp_stream_error_t * const stream_error,
 				  void * const userdata);
 
+void xmpp_send_error(xmpp_conn_t * const conn, xmpp_error_type_t const type, char * const text);
 xmpp_conn_t *xmpp_conn_new(xmpp_ctx_t * const ctx);
 xmpp_conn_t *xmpp_conn_clone(xmpp_conn_t * const conn);
 int xmpp_conn_release(xmpp_conn_t * const conn);
@@ -381,6 +382,8 @@ int xmpp_message_set_body(xmpp_stanza_t *msg, const char * const text);
 xmpp_stanza_t *xmpp_iq_new(xmpp_ctx_t *ctx, const char * const type,
                            const char * const id);
 xmpp_stanza_t *xmpp_presence_new(xmpp_ctx_t *ctx);
+xmpp_stanza_t *xmpp_error_new(xmpp_ctx_t *ctx, xmpp_error_type_t const type,
+                              const char * const text);
 
 /* jid */
 

tests/test_string.c

@@ -20,6 +20,16 @@
 
 #include "test.h" /* ARRAY_SIZE */
 
+/* strtok_s() has appeared in visual studio 2005.
+   Use own implementation for older versions. */
+#ifdef _MSC_VER
+# if (_MSC_VER >= 1400)
+# define strtok_r strtok_s
+# else
+# define strtok_r xmpp_strtok_r
+# endif
+#endif /* _MSC_VER */
+
 static int test_strtok_r(void)
 {
     const char *test = "-abc-=-def--";