update man for -B option

alpine outputs different error message for bind from other distros.

.gitignore

@@ -3,5 +3,6 @@ html
 compile_commands.json
 CMakeUserPresets.json
 .*.swp
+.cache
 
 include/mscp_version.h

VERSION

@@ -1 +1 @@
-0.2.3
+0.2.4

debian/changelog

@@ -1,4 +1,12 @@
-mscp (0.2.3) UNRELEASED; urgency=medium
+mscp (0.2.4) UNRELEASED; urgency=medium
+
+  * fix password auth does not work (issue #36)
+  * add Debian and Devuan to the install dep script (pr #38)
+  * fallback to default terminal size on no tty (pr #39)
+
+ -- Ryo Nakamura <upa@haeena.net>  Sat, 08 Nov 2025 19:23:07 +0900
+
+mscp (0.2.3) unstable; urgency=medium
 
   * bump libssh version to 0.11.2 (#25)
   * adopt new AIO read API of libssh

doc/mscp.1.in

@@ -41,6 +41,9 @@ mscp \- copy files over multiple SSH connections
 .BI \-L \ LIMIT_BITRATE\c
 ]
 [\c
+.BI \-B \ BIND_ADDR\c
+]
+[\c
 .BI \-l \ LOGIN_NAME\c
 ]
 [\c
@@ -220,6 +223,13 @@ delivered over SSH. Changing this value is not recommended at present.
 Limits the bitrate, specified with k (K), m (M), and g (G), e.g., 100m
 indicates 100 Mbps.
 
+.TP
+.B \-B \fIBIND_ADDR\fR
+Specifies a local IP address to bind. When multiple -B options are
+specified, SSH connections will be bound to the addresses in a round
+robin manner. This feature enables using multiple network interfaces
+having differnt IP addresses.
+
 .TP
 .B \-4
 Uses IPv4 addresses only.
@@ -435,6 +445,18 @@ will be faster than the default chacha20-poly1305 cipher, particularly
 on hosts that support AES-NI.
 
 
+.PP
+Use multiple network interfaces having different IP addresses:
+
+.nf
+    $ mscp -n 9 -B 10.0.0.10 -B 10.0.0.11 -B 10.0.0.12 many-large-files 192.168.0.1:dst/
+.fi
+
+Out of the 9 SSH connections, three of them are bound to each of
+10.0.0.10, 10.0.0.11, and 10.0.0.12 in a round robin manner.
+
+
+
 .SH "SEE ALSO"
 .BR scp (1),
 .BR ssh (1),

doc/mscp.rst

@@ -2,7 +2,7 @@
 MSCP
 ====
 
-:Date: v0.2.1
+:Date: v0.2.4-6-gcd61363
 
 NAME
 ====
@@ -16,10 +16,11 @@ SYNOPSIS
 *COREMASK* ] [ **-u** *MAX_STARTUPS* ] [ **-I** *INTERVAL* ] [ **-W**
 *CHECKPOINT* ] [ **-R** *CHECKPOINT* ] [ **-s** *MIN_CHUNK_SIZE* ] [
 **-S** *MAX_CHUNK_SIZE* ] [ **-a** *NR_AHEAD* ] [ **-b** *BUF_SIZE* ] [
-**-L** *LIMIT_BITRATE* ] [ **-l** *LOGIN_NAME* ] [ **-P** *PORT* ] [
-**-F** *SSH_CONFIG* ] [ **-o** *SSH_OPTION* ] [ **-i** *IDENTITY* ] [
-**-J** *DESTINATION* ] [ **-c** *CIPHER* ] [ **-M** *HMAC* ] [ **-C**
-*COMPRESS* ] [ **-g** *CONGESTION* ] *source ... target*
+**-L** *LIMIT_BITRATE* ] [ **-B** *BIND_ADDR* ] [ **-l** *LOGIN_NAME* ]
+[ **-P** *PORT* ] [ **-F** *SSH_CONFIG* ] [ **-o** *SSH_OPTION* ] [
+**-i** *IDENTITY* ] [ **-J** *DESTINATION* ] [ **-c** *CIPHER* ] [
+**-M** *HMAC* ] [ **-C** *COMPRESS* ] [ **-g** *CONGESTION* ] *source
+... target*
 
 DESCRIPTION
 ===========
@@ -120,6 +121,12 @@ OPTIONS
    Limits the bitrate, specified with k (K), m (M), and g (G), e.g.,
    100m indicates 100 Mbps.
 
+**-B BIND_ADDR**
+   Specifies a local IP address to bind. When multiple -B options are
+   specified, SSH connections will be bound to the addresses in a round
+   robin manner. This feature enables using multiple network interfaces
+   having differnt IP addresses.
+
 **-4**
    Uses IPv4 addresses only.
 
@@ -269,6 +276,15 @@ SFTP WRITE/READ commands, and **-c aes128-gcm@openssh.com** will be
 faster than the default chacha20-poly1305 cipher, particularly on hosts
 that support AES-NI.
 
+Use multiple network interfaces having different IP addresses:
+
+::
+
+       $ mscp -n 9 -B 10.0.0.10 -B 10.0.0.11 -B 10.0.0.12 many-large-files 192.168.0.1:dst/
+
+Out of the 9 SSH connections, three of them are bound to each of
+10.0.0.10, 10.0.0.11, and 10.0.0.12 in a round robin manner.
+
 SEE ALSO
 ========
 

include/mscp.h

@@ -28,6 +28,8 @@
 
 #include <stdbool.h>
 #include <limits.h>
+#include <stdlib.h>
+
 
 #define MSCP_DIRECTION_L2R	1	/** Indicates local to remote copy */
 #define MSCP_DIRECTION_R2L	2	/** Indicates remote to local copy */
@@ -59,6 +61,7 @@ struct mscp_ssh_opts {
 	/* ssh options */
 	char	*login_name;	/** ssh username */
 	char	*port;		/** ssh port */
+	char    **bind_addrs;   /** addresses to bind, terminated by NULL  */
 	int	ai_family;	/** address family */
 	char	*config;	/** path to ssh_config, default ~/.ssh/config*/
 	char	**options;	/** array of ssh_config options, terminated by NULL */

rpm/mscp.spec.in

@@ -38,6 +38,9 @@ make -C build install DESTDIR=%{buildroot}
 
 
 %changelog
+* Sat Nov 08 2025 Ryo Nakamura <upa@haeena.net> - 0.2.4-1
+- RPM release for v0.2.4
+
 * Tue Aug 12 2025 Ryo Nakamura <upa@haeena.net> - 0.2.3-1
 - RPM release for v0.2.3
 

scripts/install-build-deps.sh

@@ -47,7 +47,7 @@ case $platform in
 		cmd="brew install"
 		pkgs="openssl@3"
 		;;
-	Linux-ubuntu*)
+	Linux-ubuntu* | Linux-debian* | Linux-devuan*)
 		cmd="apt-get install --no-install-recommends -y"
 		pkgs="gcc make cmake zlib1g-dev libssl-dev libkrb5-dev"
 		;;

src/bwlimit.c

@@ -50,8 +50,6 @@ int bwlimit_init(struct bwlimit *bw, uint64_t bps, uint64_t win)
 #define timespeccmp(a, b, expr) \
 	((a.tv_sec * 1000000000 + a.tv_nsec) expr(b.tv_sec * 1000000000 + b.tv_nsec))
 
-#include <stdio.h>
-
 int bwlimit_wait(struct bwlimit *bw, size_t nr_bytes)
 {
 	struct timespec now, end, rq, rm;

src/bwlimit.h

@@ -9,10 +9,10 @@
 #include <semaphore.h>
 
 struct bwlimit {
-	sem_t		*sem;	/* semaphore */
-	uint64_t	bps;	/* limit bit-rate (bps) */
-	uint64_t	win;	/* window size (msec) */
-	size_t		amt;	/* amount of bytes can be sent in a window */
+	sem_t	*sem;	/* semaphore */
+	size_t	bps;	/* limit bit-rate (bps) */
+	size_t	win;	/* window size (msec) */
+	size_t	amt;	/* amount of bytes can be sent in a window */
 
 	ssize_t		credit;	/* remaining bytes can be sent in a window */
 	struct timespec wstart, wend; /* window start time and end time */

src/fileops.c

@@ -101,7 +101,6 @@ MDIR *mscp_opendir_wrapped(const char *path)
 
 void mscp_closedir(MDIR *md)
 {
-	int ret;
 	if (md->remote)
 		sftp_closedir(md->remote);
 	else

src/main.c

@@ -28,7 +28,7 @@ void usage(bool print_help)
 	       "Usage: mscp [-46vqDpdNh] [-n nr_conns] [-m coremask] [-u max_startups]\n"
 	       "            [-I interval] [-W checkpoint] [-R checkpoint]\n"
 	       "            [-s min_chunk_sz] [-S max_chunk_sz] [-a nr_ahead]\n"
-	       "            [-b buf_sz] [-L limit_bitrate]\n"
+	       "            [-b buf_sz] [-L limit_bitrate] [-B bind_addr]\n"
 	       "            [-l login_name] [-P port] [-F ssh_config] [-o ssh_option]\n"
 	       "            [-i identity_file] [-J destination] [-c cipher_spec] [-M hmac_spec]\n"
 	       "            [-C compress] [-g congestion]\n"
@@ -51,7 +51,8 @@ void usage(bool print_help)
 	       "    -S MAX_CHUNK_SIZE  max chunk size (default: filesize/nr_conn/4)\n"
 	       "    -a NR_AHEAD        number of inflight SFTP commands (default: 32)\n"
 	       "    -b BUF_SZ          buffer size for i/o and transfer\n"
-	       "    -L LIMIT_BITRATE   Limit the bitrate, n[KMG] (default: 0, no limit)\n"
+	       "    -L LIMIT_BITRATE   limit the bitrate, n[KMG] (default: 0, no limit)\n"
+	       "    -B BIND_ADDR       bind address (accept multiple times)\n"
 	       "\n"
 	       "    -4                 use IPv4\n"
 	       "    -6                 use IPv6\n"
@@ -117,8 +118,6 @@ char *split_user_host_path(const char *s, char **userp, char **hostp, char **pat
 		return NULL;
 	}
 
-	user = NULL;
-	host = NULL;
 	path = tmp;
 	for (cp = tmp; *cp; cp++) {
 		if (*cp == '@' && (cp > tmp) && *(cp - 1) != '\\' && user == NULL) {
@@ -211,7 +210,6 @@ struct target *validate_targets(char **arg, int len)
 		pr_err("calloc: %s", strerrno());
 		return NULL;
 	}
-	memset(t, 0, len * sizeof(struct target));
 
 	/* split remote:path into remote and path */
 	for (n = 0; n < len; n++) {
@@ -309,7 +307,7 @@ long atol_with_unit(char *value, bool i)
 {
 	/* value must be "\d+[kKmMgG]?" */
 
-	char *u = value + (strlen(optarg) - 1);
+	char *u = value + (strlen(value) - 1);
 	long k = i ? 1024 : 1000;
 	long factor = 1;
 	long v;
@@ -359,18 +357,18 @@ int main(int argc, char **argv)
 	struct mscp_ssh_opts s;
 	struct mscp_opts o;
 	struct target *t;
-	int pipe_fd[2];
 	int ch, n, i, ret;
 	int direction = 0;
 	char *remote = NULL, *checkpoint_save = NULL, *checkpoint_load = NULL;
 	bool quiet = false, dryrun = false, resume = false;
+	int nr_baddrs = 0;
 	int nr_options = 0;
 
 	memset(&s, 0, sizeof(s));
 	memset(&o, 0, sizeof(o));
 	o.severity = MSCP_SEVERITY_WARN;
 
-#define mscpopts "n:m:u:I:W:R:s:S:a:b:L:46vqDrl:P:F:o:i:J:c:M:C:g:pdNh"
+#define mscpopts "n:m:u:I:W:R:s:S:a:b:L:B:46vqDrl:P:F:o:i:J:c:M:C:g:pdNh"
 	while ((ch = getopt(argc, argv, mscpopts)) != -1) {
 		switch (ch) {
 		case 'n':
@@ -411,6 +409,17 @@ int main(int argc, char **argv)
 		case 'L':
 			o.bitrate = atol_with_unit(optarg, false);
 			break;
+		case 'B':
+			nr_baddrs++;
+			s.bind_addrs = realloc(s.bind_addrs,
+					       sizeof(char *) * (nr_baddrs + 1));
+			if (!s.bind_addrs) {
+				pr_err("realloc: %s", strerrno());
+				return 1;
+			}
+			s.bind_addrs[nr_baddrs - 1] = optarg;
+			s.bind_addrs[nr_baddrs] = NULL;
+			break;
 		case '4':
 			s.ai_family = AF_INET;
 			break;
@@ -697,8 +706,13 @@ void print_progress_bar(double percent, char *suffix)
 
 	buf[0] = '\0';
 
-	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0)
-		return; /* XXX */
+	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0 || ws.ws_col == 0) {
+
+		// fallback to default
+		ws.ws_col = 80;
+		ws.ws_row = 24;
+	}
+
 	bar_width = min(sizeof(buf), ws.ws_col) - strlen(suffix) - 7;
 
 	memset(buf, 0, sizeof(buf));
@@ -776,8 +790,6 @@ struct xfer_stat x;
 void print_stat(bool final)
 {
 	struct mscp_stats s;
-	char buf[8192];
-	int timeout;
 
 	gettimeofday(&x.after, NULL);
 	if (calculate_timedelta(&x.before, &x.after) > 1 || final) {
@@ -793,9 +805,6 @@ void print_stat(bool final)
 
 void *print_stat_thread(void *arg)
 {
-	struct mscp_stats s;
-	char buf[8192];
-
 	memset(&x, 0, sizeof(x));
 	gettimeofday(&x.start, NULL);
 	x.before = x.start;

src/mscp.c

@@ -78,7 +78,7 @@ struct mscp {
 
 static int expand_coremask(const char *coremask, int **cores, int *nr_cores)
 {
-	int n, *core_list, core_list_len = 0, nr_usable, nr_all;
+	int n, *core_list, nr_usable, nr_all;
 	char c[2] = { 'x', '\0' };
 	const char *_coremask;
 	long v, needle;
@@ -273,7 +273,6 @@ struct mscp *mscp_init(struct mscp_opts *o, struct mscp_ssh_opts *s)
 		priv_set_errv("bwlimit_init: %s", strerrno());
 		goto free_out;
 	}
-	pr_notice("bitrate limit: %lu bps", o->bitrate);
 
 	/* workaround: set libssh using openssh proxyjump
 	 * https://gitlab.com/libssh/libssh-mirror/-/issues/319 */
@@ -563,6 +562,9 @@ int mscp_start(struct mscp *m)
 		m->opts->nr_threads = n;
 	}
 
+	pr_notice("threads: %d",m->opts->nr_threads);
+	pr_notice("bwlimit: %ld bps", m->bw.bps);
+
 	for (n = 0; n < m->opts->nr_threads; n++) {
 		t = mscp_copy_thread_spawn(m, n);
 		if (!t)

src/print.c

@@ -9,7 +9,8 @@ void set_print_severity(int serverity)
 {
 	if (serverity < 0)
 		__print_severity = -1; /* no print */
-	__print_severity = serverity;
+        else
+                __print_severity = serverity;
 }
 
 int get_print_severity()

src/ssh.c

@@ -6,6 +6,7 @@
 
 #include <ssh.h>
 #include <mscp.h>
+#include <atomic.h>
 #include <strerrno.h>
 
 #include "libssh/callbacks.h"
@@ -14,6 +15,9 @@
 static int ssh_verify_known_hosts(ssh_session session);
 static int ssh_authenticate_kbdint(ssh_session session);
 
+static lock bind_addr_lock = PTHREAD_MUTEX_INITIALIZER;
+static int bind_addr_idx;
+
 static int ssh_set_opts(ssh_session ssh, struct mscp_ssh_opts *opts)
 {
 	ssh_set_log_level(opts->debug_level);
@@ -29,6 +33,21 @@ static int ssh_set_opts(ssh_session ssh, struct mscp_ssh_opts *opts)
 		return -1;
 	}
 
+	if (opts->bind_addrs) {
+		/* ssh_set_opts can be called from multiple threads,
+		 * thus protect bind_addr_idx with a lock. */
+		char *bind_addr;
+		LOCK_ACQUIRE(&bind_addr_lock);
+		bind_addr = opts->bind_addrs[bind_addr_idx];
+		bind_addr_idx = (opts->bind_addrs[bind_addr_idx + 1] == NULL ?
+				 0 : bind_addr_idx + 1);
+		LOCK_RELEASE();
+		if (ssh_options_set(ssh, SSH_OPTIONS_BINDADDR, bind_addr) < 0) {
+			priv_set_errv("failed to set bind address %s", bind_addr);
+			return -1;
+		}
+	}
+
 	if (opts->ai_family &&
 	    ssh_options_set(ssh, SSH_OPTIONS_AI_FAMILY, &opts->ai_family) < 0) {
 		priv_set_errv("failed to set address family");
@@ -114,15 +133,32 @@ static int ssh_set_opts(ssh_session ssh, struct mscp_ssh_opts *opts)
 
 static int ssh_authenticate(ssh_session ssh, struct mscp_ssh_opts *opts)
 {
-	int auth_bit_mask;
+	static int auth_bit_mask;
 	int ret;
 
-	/* try publickey auth first */
-	char *p = opts->passphrase ? opts->passphrase : NULL;
-	if (ssh_userauth_publickey_auto(ssh, NULL, p) == SSH_AUTH_SUCCESS)
-		return 0;
+        if (auth_bit_mask == 0) {
+                /* the first authentication attempt. try none auth to
+                 * get available auth methods. */
+                if (ssh_userauth_none(ssh, NULL) == SSH_AUTH_SUCCESS)
+                        return 0;
+
+                /* save auth_bit_mask for further authentications.
+                 * when an authentication succeeds, auth_bit_mask is
+                 * overwritten with the suceeded authentication method
+                 * to avoid authentication failures by other methods.
+                 */
+                auth_bit_mask = ssh_userauth_list(ssh, NULL);
+        }
+
+	if (auth_bit_mask & SSH_AUTH_METHOD_PUBLICKEY) {
+                char *p = opts->passphrase ? opts->passphrase : NULL;
+                if (ssh_userauth_publickey_auto(ssh, NULL, p) == SSH_AUTH_SUCCESS) {
+                        auth_bit_mask = SSH_AUTH_METHOD_PUBLICKEY;
+                        return 0;
+                }
+
+        }
 
-	auth_bit_mask = ssh_userauth_list(ssh, NULL);
 	if (auth_bit_mask & SSH_AUTH_METHOD_PASSWORD) {
 		if (!opts->password) {
 			char buf[128] = {};
@@ -136,14 +172,17 @@ static int ssh_authenticate(ssh_session ssh, struct mscp_ssh_opts *opts)
 			}
 		}
 
-		if (ssh_userauth_password(ssh, NULL, opts->password) == SSH_AUTH_SUCCESS)
-			return 0;
+		if (ssh_userauth_password(ssh, NULL, opts->password) == SSH_AUTH_SUCCESS) {
+                        auth_bit_mask = SSH_AUTH_METHOD_PASSWORD;
+                        return 0;
+                }
 	}
 
-	auth_bit_mask = ssh_userauth_list(ssh, NULL);
 	if (auth_bit_mask & SSH_AUTH_METHOD_INTERACTIVE) {
-		if (ssh_authenticate_kbdint(ssh) == SSH_AUTH_SUCCESS)
-			return 0;
+		if (ssh_authenticate_kbdint(ssh) == SSH_AUTH_SUCCESS) {
+                        auth_bit_mask = SSH_AUTH_METHOD_INTERACTIVE;
+                        return 0;
+                }
 	}
 
 	return -1;

test/test_e2e.py

@@ -9,28 +9,71 @@ import getpass
 import datetime
 import time
 import os
+import re
 import shutil
 
-from subprocess import check_call, CalledProcessError
+from subprocess import check_output, CalledProcessError, STDOUT
 from util import File, check_same_md5sum
 
 
-def run2ok(args, env = None, quiet = False):
+def run2ok(args, env = None) -> str:
     cmd = list(map(str, args))
-    if not quiet:
-        print("cmd: {}".format(" ".join(cmd)))
-    check_call(cmd, env = env)
+    print("cmd: {}".format(" ".join(cmd)))
+    out = check_output(cmd, env = env, stderr = STDOUT).decode()
+    print(out)
+    return out
 
-def run2ng(args, env = None, timeout = None, quiet = False):
+def run2ng(args, env = None, timeout = None):
     if timeout:
         args = ["timeout", "-s", "INT", timeout] + args
     cmd = list(map(str, args))
-    if not quiet:
-        print("cmd: {}".format(" ".join(cmd)))
-    with pytest.raises(CalledProcessError):
-        check_call(cmd, env = env)
+    print("cmd: {}".format(" ".join(cmd)))
+    with pytest.raises(CalledProcessError) as execinfo:
+        check_output(cmd, env = env, stderr = STDOUT)
+    out = execinfo.value.stdout.decode()
+    print(out)
+    return out
 
 
+@pytest.fixture(autouse=True)
+def cleanup_files():
+    """
+    Cleanup files having the following `prefixes` or matching `paths`.
+    """
+
+    yield
+
+    prefixes = [
+        "src", "dst",
+        "non_existent_dstdir",
+    ]
+    paths = [
+        "/mscp-test-src", "/tmp/mscp-test-src",
+        "{}/src".format(os.environ["HOME"]),
+        "{}/dst".format(os.environ["HOME"]),
+        "/tmp/mscp_test_ssh_config",
+        "/home/test/dst",
+        "/home/test/src",
+        "checkpoint",
+    ]
+
+    def remove(path):
+        print(f"cleanup remove: {fname}")
+        if os.path.isdir(path):
+            shutil.rmtree(path)
+        else:
+            os.remove(path)
+
+    for fname in os.listdir(os.getcwd()):
+        for prefix in prefixes:
+            if fname.startswith(prefix):
+                remove(fname)
+                break
+
+    for path in paths:
+        if os.path.exists(path):
+            remove(path)
+
 
 """ usage test """
 
@@ -72,8 +115,7 @@ def test_single_copy(mscp, src_prefix, dst_prefix, src, dst):
     src.make()
     run2ok([mscp, "-vvv", src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_failed_to_copy_nonexistent_file(mscp, src_prefix, dst_prefix):
@@ -94,10 +136,6 @@ def test_double_copy(mscp, src_prefix, dst_prefix, s1, s2, d1, d2):
     run2ok([mscp, "-vvv", src_prefix + s1.path, src_prefix + s2.path, dst_prefix + "dst"])
     assert check_same_md5sum(s1, d1)
     assert check_same_md5sum(s2, d2)
-    s1.cleanup()
-    s2.cleanup()
-    d1.cleanup()
-    d2.cleanup()
 
 
 remote_v6_prefix = "[::1]:{}/".format(os.getcwd())
@@ -113,10 +151,6 @@ def test_double_copy_with_ipv6_notation(mscp, src_prefix, dst_prefix, s1, s2, d1
             src_prefix + s1.path, src_prefix + s2.path, dst_prefix + "dst"])
     assert check_same_md5sum(s1, d1)
     assert check_same_md5sum(s2, d2)
-    s1.cleanup()
-    s2.cleanup()
-    d1.cleanup()
-    d2.cleanup()
 
 
 remote_user_v6_prefix = "{}@[::1]:{}/".format(getpass.getuser(), os.getcwd())
@@ -133,11 +167,6 @@ def test_double_copy_with_user_and_ipv6_notation(mscp, src_prefix, dst_prefix,
             src_prefix + s1.path, src_prefix + s2.path, dst_prefix + "dst"])
     assert check_same_md5sum(s1, d1)
     assert check_same_md5sum(s2, d2)
-    s1.cleanup()
-    s2.cleanup()
-    d1.cleanup()
-    d2.cleanup()
-
 
 
 param_dir_copy = [
@@ -177,10 +206,6 @@ def test_dir_copy(mscp, src_prefix, dst_prefix, src_dir, dst_dir, src, dst, twic
     for sf, df in zip(src, twice):
         assert check_same_md5sum(sf, df)
 
-    for sf, df, tf in zip(src, dst, twice):
-        sf.cleanup()
-        df.cleanup()
-        tf.cleanup()
 
 
 param_dir_copy_single = [
@@ -196,8 +221,7 @@ def test_dir_copy_single(mscp, src_prefix, dst_prefix, src_dir, dst_dir, src, ds
     os.mkdir(dst_dir)
     run2ok([mscp, "-vvv", src_prefix + src_dir, dst_prefix + dst_dir])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_override_single_file(mscp, src_prefix, dst_prefix):
@@ -208,8 +232,6 @@ def test_override_single_file(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
 
-    src.cleanup()
-    dst.cleanup()
 
 absolute_remote_prefix = "localhost:"
 param_absolute_remote_prefix = [
@@ -223,8 +245,7 @@ def test_copy_file_under_root_to_dir(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", src_prefix + src.path,
             dst_prefix + os.path.dirname(dst.path)])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup(preserve_dir = True)
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_dst_has_suffix_slash(mscp, src_prefix, dst_prefix):
@@ -233,7 +254,6 @@ def test_dst_has_suffix_slash(mscp, src_prefix, dst_prefix):
     mscp should create dir/ and put dir/src-file-name.
     """
     dstdir = "non_existent_dstdir/"
-    shutil.rmtree(dstdir, ignore_errors=True)
 
     src = File("src", size = 1024 * 1024).make()
     dst = File(f"{dstdir}/src")
@@ -242,8 +262,7 @@ def test_dst_has_suffix_slash(mscp, src_prefix, dst_prefix):
             dst_prefix + dstdir])
 
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
+
 
 param_tilde_paths = [
     ("src", "localhost:~/dst"),
@@ -268,9 +287,6 @@ def test_remote_path_contains_tilde(mscp, src_path, dst_path):
     run2ok([mscp, "-vvv", src_path, dst_path])
     assert check_same_md5sum(src, dst)
 
-    src.cleanup(preserve_dir=True)
-    dst.cleanup(preserve_dir=True)
-
 
 def test_remote_path_contains_tilde2(mscp):
     src = File("src", size = 1024 * 1024).make()
@@ -279,9 +295,6 @@ def test_remote_path_contains_tilde2(mscp):
     run2ok([mscp, "-vvv", src.path, f"localhost:~"])
     assert check_same_md5sum(src, dst)
 
-    src.cleanup(preserve_dir=True)
-    dst.cleanup(preserve_dir=True)
-
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_min_chunk(mscp, src_prefix, dst_prefix):
@@ -291,9 +304,6 @@ def test_min_chunk(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", "-s", 32768, src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
 
-    src.cleanup()
-    dst.cleanup()
-
 
 def is_alpine():
     if os.path.exists("/etc/os-release"):
@@ -328,8 +338,7 @@ def test_glob_src_path(mscp, src_prefix, dst_prefix,
     run2ok([mscp, "-vvv", src_prefix + src_glob_path, dst_prefix + dst_path])
     for src, dst in zip(srcs, dsts):
         assert check_same_md5sum(src, dst)
-        src.cleanup()
-        dst.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_thread_affinity(mscp, src_prefix, dst_prefix):
@@ -340,8 +349,6 @@ def test_thread_affinity(mscp, src_prefix, dst_prefix):
             src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
 
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_cannot_override_file_with_dir(mscp, src_prefix, dst_prefix):
@@ -350,8 +357,6 @@ def test_cannot_override_file_with_dir(mscp, src_prefix, dst_prefix):
 
     run2ng([mscp, "-vvv", src_prefix + src.path, dst_prefix + "dst/src"])
 
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_transfer_zero_bytes(mscp, src_prefix, dst_prefix):
@@ -359,8 +364,6 @@ def test_transfer_zero_bytes(mscp, src_prefix, dst_prefix):
     dst = File("dst")
     run2ok([mscp, "-vvv", src_prefix + src.path, dst_prefix + "dst"])
     assert os.path.exists("dst")
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_override_dst_having_larger_size(mscp, src_prefix, dst_prefix):
@@ -368,8 +371,6 @@ def test_override_dst_having_larger_size(mscp, src_prefix, dst_prefix):
     dst = File("dst", size = 1024 * 1024 * 2).make()
     run2ok([mscp, "-vvv", src_prefix + src.path, dst_prefix + "dst"])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_dont_truncate_dst(mscp, src_prefix, dst_prefix):
@@ -378,7 +379,7 @@ def test_dont_truncate_dst(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", src_prefix + f.path, dst_prefix + f.path])
     md5_after = f.md5sum()
     assert md5_before == md5_after
-    f.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_copy_readonly_file(mscp, src_prefix, dst_prefix):
@@ -392,8 +393,6 @@ def test_copy_readonly_file(mscp, src_prefix, dst_prefix):
     dst = File("dst")
     run2ok([mscp, "-vvv", src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_dont_make_conns_more_than_chunks(mscp, src_prefix, dst_prefix):
@@ -410,8 +409,7 @@ def test_dont_make_conns_more_than_chunks(mscp, src_prefix, dst_prefix):
     end = time.time()
     for s, d in zip(srcs, dsts):
         assert check_same_md5sum(s, d)
-    shutil.rmtree("src")
-    shutil.rmtree("dst")
+
     assert((end - start) < 10)
 
 
@@ -425,24 +423,51 @@ def test_bwlimit(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", "-L", "100m", src_prefix + "src", dst_prefix + "dst"])
     end = datetime.datetime.now().timestamp()
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
     assert end - start > 7
 
 
+@pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
+def test_bind_ng(mscp, src_prefix, dst_prefix):
+    """Bind to invalid address should fail."""
+    out = run2ng([mscp, "-vvv", "-ddd", "-B", "192.168.10.10",
+                  src_prefix + "src", dst_prefix + "dst"])
+    assert ("Cannot assign requested address" in out or
+            "Address not available" in out)
+
+
+@pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
+def test_bind_ok(mscp, src_prefix, dst_prefix):
+    """Bind to multiple lo addresses and check all of them used """
+
+    srcs = [ File(f"src-{x}", size = 128).make() for x in range(10) ]
+    src_paths = [ src_prefix + src.path for src in srcs ]
+
+    out = run2ok([mscp, "-v",  "-ddd",
+                  "-B", "127.0.0.10", "-B", "127.0.0.20", "-B", "127.0.0.30",
+                  ] +
+                 src_paths + [dst_prefix + "dst/"])
+
+    for src in srcs:
+        dst = File(f"dst/{src.path}")
+        assert check_same_md5sum(src, dst)
+
+    assert "127.0.0.10" in out
+    assert "127.0.0.20" in out
+    assert "127.0.0.30" in out
+
+
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 @pytest.mark.parametrize("src, dst", param_single_copy)
 def test_set_port_ng(mscp, src_prefix, dst_prefix, src, dst):
     src.make()
     run2ng([mscp, "-vvv", "-P", 21, src_prefix + src.path, dst_prefix + dst.path])
-    src.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 @pytest.mark.parametrize("src, dst", param_single_copy)
 def test_set_port_ok(mscp, src_prefix, dst_prefix, src, dst):
     src.make()
     run2ok([mscp, "-vvv", "-P", 8022, src_prefix + src.path, dst_prefix + dst.path])
-    src.cleanup()
 
 def test_v4only(mscp):
     src = File("src", size = 1024).make()
@@ -450,8 +475,6 @@ def test_v4only(mscp):
     dst_prefix = "localhost:{}/".format(os.getcwd())
     run2ok([mscp, "-vvv", "-4", src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 def test_v6only(mscp):
     src = File("src", size = 1024).make()
@@ -459,34 +482,26 @@ def test_v6only(mscp):
     dst_prefix = "ip6-localhost:{}/".format(os.getcwd())
     run2ok([mscp, "-vvv", "-6", src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 def test_v4_to_v6_should_fail(mscp):
     src = File("src", size = 1024).make()
     dst = File("dst")
     dst_prefix = "[::1]:{}/".format(os.getcwd())
     run2ng([mscp, "-vvv", "-4", src.path, dst_prefix + dst.path])
-    src.cleanup()
 
 def test_v6_to_v4_should_fail(mscp):
     src = File("src", size = 1024).make()
     dst = File("dst")
     dst_prefix = "127.0.0.1:{}/".format(os.getcwd())
     run2ng([mscp, "-vvv", "-6", src.path, dst_prefix + dst.path])
-    src.cleanup()
 
-def test_quiet_mode(capsys, mscp):
+def test_quiet_mode(mscp):
     src = File("src", size = 1024).make()
     dst = File("dst")
     dst_prefix = "127.0.0.1:{}/".format(os.getcwd())
-    run2ok([mscp, "-vvv", "-q", src.path, dst_prefix + dst.path], quiet=True)
+    out = run2ok([mscp, "-vvv", "-q", src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
-    captured = capsys.readouterr()
-    assert not captured.out
-    assert not captured.err
+    assert not out
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_set_conn_interval(mscp, src_prefix, dst_prefix):
@@ -499,8 +514,6 @@ def test_set_conn_interval(mscp, src_prefix, dst_prefix):
 
     for src, dst in zip(srcs, dsts):
         assert check_same_md5sum(src, dst)
-        src.cleanup()
-        dst.cleanup()
 
 compressions = ["yes", "no", "none"]
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
@@ -510,8 +523,6 @@ def test_compression(mscp, src_prefix, dst_prefix, compress):
     dst = File("dst", size = 1024 * 1024 * 2).make()
     run2ok([mscp, "-vvv", "-C", compress, src_prefix + src.path, dst_prefix + "dst"])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_ccalgo(mscp, src_prefix, dst_prefix):
@@ -548,8 +559,7 @@ def test_config_ok(mscp, src_prefix, dst_prefix):
 
     os.remove(config)
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_testhost_prefix)
 def test_config_ng(mscp, src_prefix, dst_prefix):
@@ -563,8 +573,6 @@ def test_config_ng(mscp, src_prefix, dst_prefix):
             src_prefix + src.path, dst_prefix + "dst"])
 
     os.remove(config)
-    src.cleanup()
-    dst.cleanup()
 
 
 param_valid_option_ok = [
@@ -581,8 +589,6 @@ def test_inline_option_ok(mscp, src_prefix, dst_prefix, option):
     run2ok([mscp, "-vvv"] + option +
            [src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 
 param_valid_option_ng = [
@@ -597,7 +603,6 @@ def test_inline_option_ng(mscp, src_prefix, dst_prefix, option):
     dst = File("dst")
     run2ng([mscp, "-vvv"] + option +
            [src_prefix + src.path, dst_prefix + dst.path])
-    src.cleanup()
 
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
@@ -610,8 +615,6 @@ def test_porxyjump_ok(mscp, src_prefix, dst_prefix):
             "-J", "localhost:8022",
             src_prefix + src.path, dst_prefix + dst.path])
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
@@ -623,7 +626,6 @@ def test_porxyjump_ng(mscp, src_prefix, dst_prefix):
     run2ng([mscp, "-n", 4, "-s", 1024 * 1024, "-vvv",
             "-J", "invaliduser@localhost:8022",
             src_prefix + src.path, dst_prefix + dst.path])
-    src.cleanup()
 
 # username test assumes that this test runs inside a container, see Dockerfiles
 def test_specify_passphrase_via_env(mscp):
@@ -634,8 +636,6 @@ def test_specify_passphrase_via_env(mscp):
     run2ok([mscp, "-vvv", "-l", "test", "-i", "/home/test/.ssh/id_rsa_test",
             src.path, "localhost:" + dst.path], env = env)
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 def test_specify_invalid_passphrase_via_env(mscp):
     src = File(os.getcwd() + "/src", size = 1024).make()
@@ -644,7 +644,6 @@ def test_specify_invalid_passphrase_via_env(mscp):
     env["MSCP_SSH_AUTH_PASSPHRASE"]  = "invalid-keypassphrase"
     run2ng([mscp, "-vvv", "-l", "test", "-i", "/home/test/.ssh/id_rsa_test",
             src.path, "localhost:" + dst.path], env = env)
-    src.cleanup()
 
 def test_specify_password_via_env(mscp):
     src = File(os.getcwd() + "/src", size = 1024).make()
@@ -654,8 +653,6 @@ def test_specify_password_via_env(mscp):
     run2ok([mscp, "-vvv", "-l", "test",
             src.path, "localhost:" + dst.path], env = env)
     assert check_same_md5sum(src, dst)
-    src.cleanup()
-    dst.cleanup()
 
 def test_specify_invalid_password_via_env(mscp):
     src = File(os.getcwd() + "/src", size = 1024).make()
@@ -664,7 +661,44 @@ def test_specify_invalid_password_via_env(mscp):
     env["MSCP_SSH_AUTH_PASSWORD"]  = "invalid-userpassword"
     run2ng([mscp, "-vvv", "-l", "test",
             src.path, "localhost:" + dst.path], env = env)
-    src.cleanup()
+
+
+@pytest.fixture
+def move_pubkey_temporally():
+    """
+    mv ~/.ssh/id_* to id_rsa.bak before test, and move it back after test.
+    """
+
+    sshdir = os.path.join(os.environ["HOME"], ".ssh")
+
+    # move pubkeys to /tmp
+    moved = []
+    for fname in os.listdir(sshdir):
+        if re.match(r"^id_[a-z0-9]+$", fname):
+            moved.append(fname)
+            shutil.move(f"{sshdir}/{fname}", f"/tmp/{fname}")
+
+    yield
+
+    # move back the keys
+    for fname in moved:
+        shutil.move(f"/tmp/{fname}", f"{sshdir}/{fname}")
+
+
+@pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
+def test_passwordauth_without_pubkey(move_pubkey_temporally,
+                                     mscp, src_prefix, dst_prefix):
+    """
+    make sure password auth works (by removing public keys)
+    """
+    src = File(os.getcwd() + "/src", size = 1024).make()
+    dst = File("/home/test/dst")
+    env = os.environ
+    env["MSCP_SSH_AUTH_PASSWORD"]  = "userpassword"
+    run2ok([mscp, "-vvv", "-l", "test",
+            src.path, "localhost:" + dst.path], env = env)
+    assert check_same_md5sum(src, dst)
+
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_10k_files(mscp, src_prefix, dst_prefix):
@@ -676,8 +710,6 @@ def test_10k_files(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-v", src_prefix + "src", dst_prefix + "dst"])
     for s, d in zip(srcs, dsts):
         assert check_same_md5sum(s, d)
-    shutil.rmtree("src")
-    shutil.rmtree("dst")
 
 @pytest.mark.parametrize("src_prefix, dst_prefix", param_remote_prefix)
 def test_checkpoint_dump_and_resume(mscp, src_prefix, dst_prefix):
@@ -692,10 +724,6 @@ def test_checkpoint_dump_and_resume(mscp, src_prefix, dst_prefix):
     run2ok([mscp, "-vvv", "-R", "checkpoint"])
     assert check_same_md5sum(src1, dst1)
     assert check_same_md5sum(src2, dst2)
-    src1.cleanup()
-    src2.cleanup()
-    dst1.cleanup()
-    dst2.cleanup()
     os.remove("checkpoint")
 
 @pytest.mark.parametrize("timeout", [ 1, 2, 3, 4, 5 ])
@@ -714,10 +742,6 @@ def test_checkpoint_interrupt_large_file(mscp, timeout, src_prefix, dst_prefix):
     run2ok([mscp, "-vv", "-R", "checkpoint"])
     assert check_same_md5sum(src1, dst1)
     assert check_same_md5sum(src2, dst2)
-    src1.cleanup()
-    src2.cleanup()
-    dst1.cleanup()
-    dst2.cleanup()
     os.remove("checkpoint")
 
 @pytest.mark.parametrize("timeout", [ 1, 2, 3, 4, 5 ])
@@ -743,8 +767,6 @@ def test_checkpoint_interrupt_many_files(mscp, timeout, src_prefix, dst_prefix):
 
     for src, dst in files:
         assert check_same_md5sum(src, dst)
-        src.cleanup()
-        dst.cleanup()
 
     os.remove("checkpoint")