- djm@cvs.openbsd.org 2004/02/17 11:03:08

     [sftp.c]
     sftp.c and sftp-int.c, together at last; ok markus@

4 files changed, 1178 insertions, 1217 deletions

diff --git a/ChangeLog b/ChangeLog
index 349eec38..a5d3ee4d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,9 @@
    - djm@cvs.openbsd.org 2004/02/17 07:17:29
      [sftp-glob.c sftp.c]
      Remove useless headers; ok deraadt@
+   - djm@cvs.openbsd.org 2004/02/17 11:03:08
+     [sftp.c]
+     sftp.c and sftp-int.c, together at last; ok markus@
 
 20040217
  - (djm) Simplify the license on code I have written. No code changes.
@@ -1874,4 +1877,4 @@
  - Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
    Report from murple@murple.net, diagnosis from dtucker@zip.com.au
 
-$Id: ChangeLog,v 1.3235 2004/02/18 03:11:13 djm Exp $
+$Id: ChangeLog,v 1.3236 2004/02/18 03:30:55 djm Exp $
diff --git a/Makefile.in b/Makefile.in
index eae406aa..919b3681 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,4 +1,4 @@
-# $Id: Makefile.in,v 1.256 2004/02/12 15:17:11 tim Exp $
+# $Id: Makefile.in,v 1.257 2004/02/18 03:35:11 djm Exp $
 
 # uncomment if you run a non bourne compatable shell. Ie. csh
 #SHELL = @SH@
@@ -158,8 +158,8 @@ ssh-keyscan$(EXEEXT): $(LIBCOMPAT) libssh.a ssh-keyscan.o
 sftp-server$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-common.o sftp-server.o
 	$(LD) -o $@ sftp-server.o sftp-common.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
 
-sftp$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-client.o sftp-int.o sftp-common.o sftp-glob.o progressmeter.o
-	$(LD) -o $@ progressmeter.o sftp.o sftp-client.o sftp-common.o sftp-int.o sftp-glob.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
+sftp$(EXEEXT): $(LIBCOMPAT) libssh.a sftp.o sftp-client.o sftp-common.o sftp-glob.o progressmeter.o
+	$(LD) -o $@ progressmeter.o sftp.o sftp-client.o sftp-common.o sftp-glob.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
 
 ssh-rand-helper${EXEEXT}: $(LIBCOMPAT) libssh.a ssh-rand-helper.o
 	$(LD) -o $@ ssh-rand-helper.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
diff --git a/sftp-int.c b/sftp-int.c
deleted file mode 100644
index 3ee57515..00000000
--- a/sftp-int.c
+++ /dev/null
@@ -1,1203 +0,0 @@
-/*
- * Copyright (c) 2001,2002 Damien Miller.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* XXX: recursive operations */
-
-#include "includes.h"
-RCSID("$OpenBSD: sftp-int.c,v 1.67 2004/01/23 17:57:48 mouring Exp $");
-
-#include "buffer.h"
-#include "xmalloc.h"
-#include "log.h"
-#include "pathnames.h"
-
-#include "sftp.h"
-#include "sftp-common.h"
-#include "sftp-glob.h"
-#include "sftp-client.h"
-#include "sftp-int.h"
-
-/* File to read commands from */
-extern FILE *infile;
-
-/* Are we in batchfile mode? */
-extern int batchmode;
-
-/* Size of buffer used when copying files */
-extern size_t copy_buffer_len;
-
-/* Number of concurrent outstanding requests */
-extern int num_requests;
-
-/* This is set to 0 if the progressmeter is not desired. */
-int showprogress = 1;
-
-/* Separators for interactive commands */
-#define WHITESPACE " \t\r\n"
-
-/* Define what type of ls view (0 - multi-column) */
-#define LONG_VIEW 1		/* Full view ala ls -l */
-#define SHORT_VIEW 2		/* Single row view ala ls -1 */
-
-/* Commands for interactive mode */
-#define I_CHDIR		1
-#define I_CHGRP		2
-#define I_CHMOD		3
-#define I_CHOWN		4
-#define I_GET		5
-#define I_HELP		6
-#define I_LCHDIR	7
-#define I_LLS		8
-#define I_LMKDIR	9
-#define I_LPWD		10
-#define I_LS		11
-#define I_LUMASK	12
-#define I_MKDIR		13
-#define I_PUT		14
-#define I_PWD		15
-#define I_QUIT		16
-#define I_RENAME	17
-#define I_RM		18
-#define I_RMDIR		19
-#define I_SHELL		20
-#define I_SYMLINK	21
-#define I_VERSION	22
-#define I_PROGRESS	23
-
-struct CMD {
-	const char *c;
-	const int n;
-};
-
-static const struct CMD cmds[] = {
-	{ "bye",	I_QUIT },
-	{ "cd",		I_CHDIR },
-	{ "chdir",	I_CHDIR },
-	{ "chgrp",	I_CHGRP },
-	{ "chmod",	I_CHMOD },
-	{ "chown",	I_CHOWN },
-	{ "dir",	I_LS },
-	{ "exit",	I_QUIT },
-	{ "get",	I_GET },
-	{ "mget",	I_GET },
-	{ "help",	I_HELP },
-	{ "lcd",	I_LCHDIR },
-	{ "lchdir",	I_LCHDIR },
-	{ "lls",	I_LLS },
-	{ "lmkdir",	I_LMKDIR },
-	{ "ln",		I_SYMLINK },
-	{ "lpwd",	I_LPWD },
-	{ "ls",		I_LS },
-	{ "lumask",	I_LUMASK },
-	{ "mkdir",	I_MKDIR },
-	{ "progress",	I_PROGRESS },
-	{ "put",	I_PUT },
-	{ "mput",	I_PUT },
-	{ "pwd",	I_PWD },
-	{ "quit",	I_QUIT },
-	{ "rename",	I_RENAME },
-	{ "rm",		I_RM },
-	{ "rmdir",	I_RMDIR },
-	{ "symlink",	I_SYMLINK },
-	{ "version",	I_VERSION },
-	{ "!",		I_SHELL },
-	{ "?",		I_HELP },
-	{ NULL,			-1}
-};
-
-static void
-help(void)
-{
-	printf("Available commands:\n");
-	printf("cd path                       Change remote directory to 'path'\n");
-	printf("lcd path                      Change local directory to 'path'\n");
-	printf("chgrp grp path                Change group of file 'path' to 'grp'\n");
-	printf("chmod mode path               Change permissions of file 'path' to 'mode'\n");
-	printf("chown own path                Change owner of file 'path' to 'own'\n");
-	printf("help                          Display this help text\n");
-	printf("get remote-path [local-path]  Download file\n");
-	printf("lls [ls-options [path]]       Display local directory listing\n");
-	printf("ln oldpath newpath            Symlink remote file\n");
-	printf("lmkdir path                   Create local directory\n");
-	printf("lpwd                          Print local working directory\n");
-	printf("ls [path]                     Display remote directory listing\n");
-	printf("lumask umask                  Set local umask to 'umask'\n");
-	printf("mkdir path                    Create remote directory\n");
-	printf("progress                      Toggle display of progress meter\n");
-	printf("put local-path [remote-path]  Upload file\n");
-	printf("pwd                           Display remote working directory\n");
-	printf("exit                          Quit sftp\n");
-	printf("quit                          Quit sftp\n");
-	printf("rename oldpath newpath        Rename remote file\n");
-	printf("rmdir path                    Remove remote directory\n");
-	printf("rm path                       Delete remote file\n");
-	printf("symlink oldpath newpath       Symlink remote file\n");
-	printf("version                       Show SFTP version\n");
-	printf("!command                      Execute 'command' in local shell\n");
-	printf("!                             Escape to local shell\n");
-	printf("?                             Synonym for help\n");
-}
-
-static void
-local_do_shell(const char *args)
-{
-	int status;
-	char *shell;
-	pid_t pid;
-
-	if (!*args)
-		args = NULL;
-
-	if ((shell = getenv("SHELL")) == NULL)
-		shell = _PATH_BSHELL;
-
-	if ((pid = fork()) == -1)
-		fatal("Couldn't fork: %s", strerror(errno));
-
-	if (pid == 0) {
-		/* XXX: child has pipe fds to ssh subproc open - issue? */
-		if (args) {
-			debug3("Executing %s -c \"%s\"", shell, args);
-			execl(shell, shell, "-c", args, (char *)NULL);
-		} else {
-			debug3("Executing %s", shell);
-			execl(shell, shell, (char *)NULL);
-		}
-		fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
-		    strerror(errno));
-		_exit(1);
-	}
-	while (waitpid(pid, &status, 0) == -1)
-		if (errno != EINTR)
-			fatal("Couldn't wait for child: %s", strerror(errno));
-	if (!WIFEXITED(status))
-		error("Shell exited abormally");
-	else if (WEXITSTATUS(status))
-		error("Shell exited with status %d", WEXITSTATUS(status));
-}
-
-static void
-local_do_ls(const char *args)
-{
-	if (!args || !*args)
-		local_do_shell(_PATH_LS);
-	else {
-		int len = strlen(_PATH_LS " ") + strlen(args) + 1;
-		char *buf = xmalloc(len);
-
-		/* XXX: quoting - rip quoting code from ftp? */
-		snprintf(buf, len, _PATH_LS " %s", args);
-		local_do_shell(buf);
-		xfree(buf);
-	}
-}
-
-/* Strip one path (usually the pwd) from the start of another */
-static char *
-path_strip(char *path, char *strip)
-{
-	size_t len;
-
-	if (strip == NULL)
-		return (xstrdup(path));
-
-	len = strlen(strip);
-	if (strip != NULL && strncmp(path, strip, len) == 0) {
-		if (strip[len - 1] != '/' && path[len] == '/')
-			len++;
-		return (xstrdup(path + len));
-	}
-
-	return (xstrdup(path));
-}
-
-static char *
-path_append(char *p1, char *p2)
-{
-	char *ret;
-	int len = strlen(p1) + strlen(p2) + 2;
-
-	ret = xmalloc(len);
-	strlcpy(ret, p1, len);
-	if (p1[strlen(p1) - 1] != '/')
-		strlcat(ret, "/", len);
-	strlcat(ret, p2, len);
-
-	return(ret);
-}
-
-static char *
-make_absolute(char *p, char *pwd)
-{
-	char *abs;
-
-	/* Derelativise */
-	if (p && p[0] != '/') {
-		abs = path_append(pwd, p);
-		xfree(p);
-		return(abs);
-	} else
-		return(p);
-}
-
-static int
-infer_path(const char *p, char **ifp)
-{
-	char *cp;
-
-	cp = strrchr(p, '/');
-	if (cp == NULL) {
-		*ifp = xstrdup(p);
-		return(0);
-	}
-
-	if (!cp[1]) {
-		error("Invalid path");
-		return(-1);
-	}
-
-	*ifp = xstrdup(cp + 1);
-	return(0);
-}
-
-static int
-parse_getput_flags(const char **cpp, int *pflag)
-{
-	const char *cp = *cpp;
-
-	/* Check for flags */
-	if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
-		switch (cp[1]) {
-		case 'p':
-		case 'P':
-			*pflag = 1;
-			break;
-		default:
-			error("Invalid flag -%c", cp[1]);
-			return(-1);
-		}
-		cp += 2;
-		*cpp = cp + strspn(cp, WHITESPACE);
-	}
-
-	return(0);
-}
-
-static int
-parse_ls_flags(const char **cpp, int *lflag)
-{
-	const char *cp = *cpp;
-
-	/* Check for flags */
-	if (cp++[0] == '-') {
-		for(; strchr(WHITESPACE, *cp) == NULL; cp++) {
-			switch (*cp) {
-			case 'l':
-				*lflag = LONG_VIEW;
-				break;
-			case '1':
-				*lflag = SHORT_VIEW;
-				break;
-			default:
-				error("Invalid flag -%c", *cp);
-				return(-1);
-			}
-		}
-		*cpp = cp + strspn(cp, WHITESPACE);
-	}
-
-	return(0);
-}
-
-static int
-get_pathname(const char **cpp, char **path)
-{
-	const char *cp = *cpp, *end;
-	char quot;
-	int i, j;
-
-	cp += strspn(cp, WHITESPACE);
-	if (!*cp) {
-		*cpp = cp;
-		*path = NULL;
-		return (0);
-	}
-
-	*path = xmalloc(strlen(cp) + 1);
-
-	/* Check for quoted filenames */
-	if (*cp == '\"' || *cp == '\'') {
-		quot = *cp++;
-
-		/* Search for terminating quote, unescape some chars */
-		for (i = j = 0; i <= strlen(cp); i++) {
-			if (cp[i] == quot) {	/* Found quote */
-				i++;
-				(*path)[j] = '\0';
-				break;
-			}
-			if (cp[i] == '\0') {	/* End of string */
-				error("Unterminated quote");
-				goto fail;
-			}
-			if (cp[i] == '\\') {	/* Escaped characters */
-				i++;
-				if (cp[i] != '\'' && cp[i] != '\"' &&
-				    cp[i] != '\\') {
-					error("Bad escaped character '\%c'",
-					    cp[i]);
-					goto fail;
-				}
-			}
-			(*path)[j++] = cp[i];
-		}
-
-		if (j == 0) {
-			error("Empty quotes");
-			goto fail;
-		}
-		*cpp = cp + i + strspn(cp + i, WHITESPACE);
-	} else {
-		/* Read to end of filename */
-		end = strpbrk(cp, WHITESPACE);
-		if (end == NULL)
-			end = strchr(cp, '\0');
-		*cpp = end + strspn(end, WHITESPACE);
-
-		memcpy(*path, cp, end - cp);
-		(*path)[end - cp] = '\0';
-	}
-	return (0);
-
- fail:
-	xfree(*path);
-	*path = NULL;
-	return (-1);
-}
-
-static int
-is_dir(char *path)
-{
-	struct stat sb;
-
-	/* XXX: report errors? */
-	if (stat(path, &sb) == -1)
-		return(0);
-
-	return(sb.st_mode & S_IFDIR);
-}
-
-static int
-is_reg(char *path)
-{
-	struct stat sb;
-
-	if (stat(path, &sb) == -1)
-		fatal("stat %s: %s", path, strerror(errno));
-
-	return(S_ISREG(sb.st_mode));
-}
-
-static int
-remote_is_dir(struct sftp_conn *conn, char *path)
-{
-	Attrib *a;
-
-	/* XXX: report errors? */
-	if ((a = do_stat(conn, path, 1)) == NULL)
-		return(0);
-	if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
-		return(0);
-	return(a->perm & S_IFDIR);
-}
-
-static int
-process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
-{
-	char *abs_src = NULL;
-	char *abs_dst = NULL;
-	char *tmp;
-	glob_t g;
-	int err = 0;
-	int i;
-
-	abs_src = xstrdup(src);
-	abs_src = make_absolute(abs_src, pwd);
-
-	memset(&g, 0, sizeof(g));
-	debug3("Looking up %s", abs_src);
-	if (remote_glob(conn, abs_src, 0, NULL, &g)) {
-		error("File \"%s\" not found.", abs_src);
-		err = -1;
-		goto out;
-	}
-
-	/* If multiple matches, dst must be a directory or unspecified */
-	if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
-		error("Multiple files match, but \"%s\" is not a directory",
-		    dst);
-		err = -1;
-		goto out;
-	}
-
-	for (i = 0; g.gl_pathv[i]; i++) {
-		if (infer_path(g.gl_pathv[i], &tmp)) {
-			err = -1;
-			goto out;
-		}
-
-		if (g.gl_matchc == 1 && dst) {
-			/* If directory specified, append filename */
-			if (is_dir(dst)) {
-				if (infer_path(g.gl_pathv[0], &tmp)) {
-					err = 1;
-					goto out;
-				}
-				abs_dst = path_append(dst, tmp);
-				xfree(tmp);
-			} else
-				abs_dst = xstrdup(dst);
-		} else if (dst) {
-			abs_dst = path_append(dst, tmp);
-			xfree(tmp);
-		} else
-			abs_dst = tmp;
-
-		printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
-		if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
-			err = -1;
-		xfree(abs_dst);
-		abs_dst = NULL;
-	}
-
-out:
-	xfree(abs_src);
-	if (abs_dst)
-		xfree(abs_dst);
-	globfree(&g);
-	return(err);
-}
-
-static int
-process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
-{
-	char *tmp_dst = NULL;
-	char *abs_dst = NULL;
-	char *tmp;
-	glob_t g;
-	int err = 0;
-	int i;
-
-	if (dst) {
-		tmp_dst = xstrdup(dst);
-		tmp_dst = make_absolute(tmp_dst, pwd);
-	}
-
-	memset(&g, 0, sizeof(g));
-	debug3("Looking up %s", src);
-	if (glob(src, 0, NULL, &g)) {
-		error("File \"%s\" not found.", src);
-		err = -1;
-		goto out;
-	}
-
-	/* If multiple matches, dst may be directory or unspecified */
-	if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
-		error("Multiple files match, but \"%s\" is not a directory",
-		    tmp_dst);
-		err = -1;
-		goto out;
-	}
-
-	for (i = 0; g.gl_pathv[i]; i++) {
-		if (!is_reg(g.gl_pathv[i])) {
-			error("skipping non-regular file %s",
-			    g.gl_pathv[i]);
-			continue;
-		}
-		if (infer_path(g.gl_pathv[i], &tmp)) {
-			err = -1;
-			goto out;
-		}
-
-		if (g.gl_matchc == 1 && tmp_dst) {
-			/* If directory specified, append filename */
-			if (remote_is_dir(conn, tmp_dst)) {
-				if (infer_path(g.gl_pathv[0], &tmp)) {
-					err = 1;
-					goto out;
-				}
-				abs_dst = path_append(tmp_dst, tmp);
-				xfree(tmp);
-			} else
-				abs_dst = xstrdup(tmp_dst);
-
-		} else if (tmp_dst) {
-			abs_dst = path_append(tmp_dst, tmp);
-			xfree(tmp);
-		} else
-			abs_dst = make_absolute(tmp, pwd);
-
-		printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
-		if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
-			err = -1;
-	}
-
-out:
-	if (abs_dst)
-		xfree(abs_dst);
-	if (tmp_dst)
-		xfree(tmp_dst);
-	globfree(&g);
-	return(err);
-}
-
-static int
-sdirent_comp(const void *aa, const void *bb)
-{
-	SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
-	SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
-
-	return (strcmp(a->filename, b->filename));
-}
-
-/* sftp ls.1 replacement for directories */
-static int
-do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
-{
-	int n, c = 1, colspace = 0, columns = 1;
-	SFTP_DIRENT **d;
-
-	if ((n = do_readdir(conn, path, &d)) != 0)
-		return (n);
-
-	if (!(lflag & SHORT_VIEW)) {
-		int m = 0, width = 80;
-		struct winsize ws;
-		char *tmp;
-
-		/* Count entries for sort and find longest filename */
-		for (n = 0; d[n] != NULL; n++)
-			m = MAX(m, strlen(d[n]->filename));
-
-		/* Add any subpath that also needs to be counted */
-		tmp = path_strip(path, strip_path);
-		m += strlen(tmp);
-		xfree(tmp);
-
-		if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
-			width = ws.ws_col;
-
-		columns = width / (m + 2);
-		columns = MAX(columns, 1);
-		colspace = width / columns;
-		colspace = MIN(colspace, width);
-	}
-
-	qsort(d, n, sizeof(*d), sdirent_comp);
-
-	for (n = 0; d[n] != NULL; n++) {
-		char *tmp, *fname;
-
-		tmp = path_append(path, d[n]->filename);
-		fname = path_strip(tmp, strip_path);
-		xfree(tmp);
-
-		if (lflag & LONG_VIEW) {
-			char *lname;
-			struct stat sb;
-
-			memset(&sb, 0, sizeof(sb));
-			attrib_to_stat(&d[n]->a, &sb);
-			lname = ls_file(fname, &sb, 1);
-			printf("%s\n", lname);
-			xfree(lname);
-		} else {
-			printf("%-*s", colspace, fname);
-			if (c >= columns) {
-				printf("\n");
-				c = 1;
-			} else
-				c++;
-		}
-
-		xfree(fname);
-	}
-
-	if (!(lflag & LONG_VIEW) && (c != 1))
-		printf("\n");
-
-	free_sftp_dirents(d);
-	return (0);
-}
-
-/* sftp ls.1 replacement which handles path globs */
-static int
-do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
-    int lflag)
-{
-	glob_t g;
-	int i, c = 1, colspace = 0, columns = 1;
-	Attrib *a;
-
-	memset(&g, 0, sizeof(g));
-
-	if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
-	    NULL, &g)) {
-		error("Can't ls: \"%s\" not found", path);
-		return (-1);
-	}
-
-	/*
-	 * If the glob returns a single match, which is the same as the
-	 * input glob, and it is a directory, then just list its contents
-	 */
-	if (g.gl_pathc == 1 &&
-	    strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) {
-		if ((a = do_lstat(conn, path, 1)) == NULL) {
-			globfree(&g);
-			return (-1);
-		}
-		if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
-		    S_ISDIR(a->perm)) {
-			globfree(&g);
-			return (do_ls_dir(conn, path, strip_path, lflag));
-		}
-	}
-
-	if (!(lflag & SHORT_VIEW)) {
-		int m = 0, width = 80;
-		struct winsize ws;
-
-		/* Count entries for sort and find longest filename */
-		for (i = 0; g.gl_pathv[i]; i++)
-			m = MAX(m, strlen(g.gl_pathv[i]));
-
-		if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
-			width = ws.ws_col;
-
-		columns = width / (m + 2);
-		columns = MAX(columns, 1);
-		colspace = width / columns;
-	}
-
-	for (i = 0; g.gl_pathv[i]; i++) {
-		char *fname;
-
-		fname = path_strip(g.gl_pathv[i], strip_path);
-
-		if (lflag & LONG_VIEW) {
-			char *lname;
-			struct stat sb;
-
-			/*
-			 * XXX: this is slow - 1 roundtrip per path
-			 * A solution to this is to fork glob() and
-			 * build a sftp specific version which keeps the
-			 * attribs (which currently get thrown away)
-			 * that the server returns as well as the filenames.
-			 */
-			memset(&sb, 0, sizeof(sb));
-			a = do_lstat(conn, g.gl_pathv[i], 1);
-			if (a != NULL)
-				attrib_to_stat(a, &sb);
-			lname = ls_file(fname, &sb, 1);
-			printf("%s\n", lname);
-			xfree(lname);
-		} else {
-			printf("%-*s", colspace, fname);
-			if (c >= columns) {
-				printf("\n");
-				c = 1;
-			} else
-				c++;
-		}
-		xfree(fname);
-	}
-
-	if (!(lflag & LONG_VIEW) && (c != 1))
-		printf("\n");
-
-	if (g.gl_pathc)
-		globfree(&g);
-
-	return (0);
-}
-
-static int
-parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
-    unsigned long *n_arg, char **path1, char **path2)
-{
-	const char *cmd, *cp = *cpp;
-	char *cp2;
-	int base = 0;
-	long l;
-	int i, cmdnum;
-
-	/* Skip leading whitespace */
-	cp = cp + strspn(cp, WHITESPACE);
-
-	/* Ignore blank lines and lines which begin with comment '#' char */
-	if (*cp == '\0' || *cp == '#')
-		return (0);
-
-	/* Check for leading '-' (disable error processing) */
-	*iflag = 0;
-	if (*cp == '-') {
-		*iflag = 1;
-		cp++;
-	}
-
-	/* Figure out which command we have */
-	for (i = 0; cmds[i].c; i++) {
-		int cmdlen = strlen(cmds[i].c);
-
-		/* Check for command followed by whitespace */
-		if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
-		    strchr(WHITESPACE, cp[cmdlen])) {
-			cp += cmdlen;
-			cp = cp + strspn(cp, WHITESPACE);
-			break;
-		}
-	}
-	cmdnum = cmds[i].n;
-	cmd = cmds[i].c;
-
-	/* Special case */
-	if (*cp == '!') {
-		cp++;
-		cmdnum = I_SHELL;
-	} else if (cmdnum == -1) {
-		error("Invalid command.");
-		return (-1);
-	}
-
-	/* Get arguments and parse flags */
-	*lflag = *pflag = *n_arg = 0;
-	*path1 = *path2 = NULL;
-	switch (cmdnum) {
-	case I_GET:
-	case I_PUT:
-		if (parse_getput_flags(&cp, pflag))
-			return(-1);
-		/* Get first pathname (mandatory) */
-		if (get_pathname(&cp, path1))
-			return(-1);
-		if (*path1 == NULL) {
-			error("You must specify at least one path after a "
-			    "%s command.", cmd);
-			return(-1);
-		}
-		/* Try to get second pathname (optional) */
-		if (get_pathname(&cp, path2))
-			return(-1);
-		break;
-	case I_RENAME:
-	case I_SYMLINK:
-		if (get_pathname(&cp, path1))
-			return(-1);
-		if (get_pathname(&cp, path2))
-			return(-1);
-		if (!*path1 || !*path2) {
-			error("You must specify two paths after a %s "
-			    "command.", cmd);
-			return(-1);
-		}
-		break;
-	case I_RM:
-	case I_MKDIR:
-	case I_RMDIR:
-	case I_CHDIR:
-	case I_LCHDIR:
-	case I_LMKDIR:
-		/* Get pathname (mandatory) */
-		if (get_pathname(&cp, path1))
-			return(-1);
-		if (*path1 == NULL) {
-			error("You must specify a path after a %s command.",
-			    cmd);
-			return(-1);
-		}
-		break;
-	case I_LS:
-		if (parse_ls_flags(&cp, lflag))
-			return(-1);
-		/* Path is optional */
-		if (get_pathname(&cp, path1))
-			return(-1);
-		break;
-	case I_LLS:
-	case I_SHELL:
-		/* Uses the rest of the line */
-		break;
-	case I_LUMASK:
-		base = 8;
-	case I_CHMOD:
-		base = 8;
-	case I_CHOWN:
-	case I_CHGRP:
-		/* Get numeric arg (mandatory) */
-		l = strtol(cp, &cp2, base);
-		if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
-		    errno == ERANGE) || l < 0) {
-			error("You must supply a numeric argument "
-			    "to the %s command.", cmd);
-			return(-1);
-		}
-		cp = cp2;
-		*n_arg = l;
-		if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
-			break;
-		if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
-			error("You must supply a numeric argument "
-			    "to the %s command.", cmd);
-			return(-1);
-		}
-		cp += strspn(cp, WHITESPACE);
-
-		/* Get pathname (mandatory) */
-		if (get_pathname(&cp, path1))
-			return(-1);
-		if (*path1 == NULL) {
-			error("You must specify a path after a %s command.",
-			    cmd);
-			return(-1);
-		}
-		break;
-	case I_QUIT:
-	case I_PWD:
-	case I_LPWD:
-	case I_HELP:
-	case I_VERSION:
-	case I_PROGRESS:
-		break;
-	default:
-		fatal("Command not implemented");
-	}
-
-	*cpp = cp;
-	return(cmdnum);
-}
-
-static int
-parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
-    int err_abort)
-{
-	char *path1, *path2, *tmp;
-	int pflag, lflag, iflag, cmdnum, i;
-	unsigned long n_arg;
-	Attrib a, *aa;
-	char path_buf[MAXPATHLEN];
-	int err = 0;
-	glob_t g;
-
-	path1 = path2 = NULL;
-	cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
-	    &path1, &path2);
-
-	if (iflag != 0)
-		err_abort = 0;
-
-	memset(&g, 0, sizeof(g));
-
-	/* Perform command */
-	switch (cmdnum) {
-	case 0:
-		/* Blank line */
-		break;
-	case -1:
-		/* Unrecognized command */
-		err = -1;
-		break;
-	case I_GET:
-		err = process_get(conn, path1, path2, *pwd, pflag);
-		break;
-	case I_PUT:
-		err = process_put(conn, path1, path2, *pwd, pflag);
-		break;
-	case I_RENAME:
-		path1 = make_absolute(path1, *pwd);
-		path2 = make_absolute(path2, *pwd);
-		err = do_rename(conn, path1, path2);
-		break;
-	case I_SYMLINK:
-		path2 = make_absolute(path2, *pwd);
-		err = do_symlink(conn, path1, path2);
-		break;
-	case I_RM:
-		path1 = make_absolute(path1, *pwd);
-		remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
-		for (i = 0; g.gl_pathv[i]; i++) {
-			printf("Removing %s\n", g.gl_pathv[i]);
-			err = do_rm(conn, g.gl_pathv[i]);
-			if (err != 0 && err_abort)
-				break;
-		}
-		break;
-	case I_MKDIR:
-		path1 = make_absolute(path1, *pwd);
-		attrib_clear(&a);
-		a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
-		a.perm = 0777;
-		err = do_mkdir(conn, path1, &a);
-		break;
-	case I_RMDIR:
-		path1 = make_absolute(path1, *pwd);
-		err = do_rmdir(conn, path1);
-		break;
-	case I_CHDIR:
-		path1 = make_absolute(path1, *pwd);
-		if ((tmp = do_realpath(conn, path1)) == NULL) {
-			err = 1;
-			break;
-		}
-		if ((aa = do_stat(conn, tmp, 0)) == NULL) {
-			xfree(tmp);
-			err = 1;
-			break;
-		}
-		if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
-			error("Can't change directory: Can't check target");
-			xfree(tmp);
-			err = 1;
-			break;
-		}
-		if (!S_ISDIR(aa->perm)) {
-			error("Can't change directory: \"%s\" is not "
-			    "a directory", tmp);
-			xfree(tmp);
-			err = 1;
-			break;
-		}
-		xfree(*pwd);
-		*pwd = tmp;
-		break;
-	case I_LS:
-		if (!path1) {
-			do_globbed_ls(conn, *pwd, *pwd, lflag);
-			break;
-		}
-
-		/* Strip pwd off beginning of non-absolute paths */
-		tmp = NULL;
-		if (*path1 != '/')
-			tmp = *pwd;
-
-		path1 = make_absolute(path1, *pwd);
-		err = do_globbed_ls(conn, path1, tmp, lflag);
-		break;
-	case I_LCHDIR:
-		if (chdir(path1) == -1) {
-			error("Couldn't change local directory to "
-			    "\"%s\": %s", path1, strerror(errno));
-			err = 1;
-		}
-		break;
-	case I_LMKDIR:
-		if (mkdir(path1, 0777) == -1) {
-			error("Couldn't create local directory "
-			    "\"%s\": %s", path1, strerror(errno));
-			err = 1;
-		}
-		break;
-	case I_LLS:
-		local_do_ls(cmd);
-		break;
-	case I_SHELL:
-		local_do_shell(cmd);
-		break;
-	case I_LUMASK:
-		umask(n_arg);
-		printf("Local umask: %03lo\n", n_arg);
-		break;
-	case I_CHMOD:
-		path1 = make_absolute(path1, *pwd);
-		attrib_clear(&a);
-		a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
-		a.perm = n_arg;
-		remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
-		for (i = 0; g.gl_pathv[i]; i++) {
-			printf("Changing mode on %s\n", g.gl_pathv[i]);
-			err = do_setstat(conn, g.gl_pathv[i], &a);
-			if (err != 0 && err_abort)
-				break;
-		}
-		break;
-	case I_CHOWN:
-	case I_CHGRP:
-		path1 = make_absolute(path1, *pwd);
-		remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
-		for (i = 0; g.gl_pathv[i]; i++) {
-			if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
-				if (err != 0 && err_abort)
-					break;
-				else
-					continue;
-			}
-			if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
-				error("Can't get current ownership of "
-				    "remote file \"%s\"", g.gl_pathv[i]);
-				if (err != 0 && err_abort)
-					break;
-				else
-					continue;
-			}
-			aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
-			if (cmdnum == I_CHOWN) {
-				printf("Changing owner on %s\n", g.gl_pathv[i]);
-				aa->uid = n_arg;
-			} else {
-				printf("Changing group on %s\n", g.gl_pathv[i]);
-				aa->gid = n_arg;
-			}
-			err = do_setstat(conn, g.gl_pathv[i], aa);
-			if (err != 0 && err_abort)
-				break;
-		}
-		break;
-	case I_PWD:
-		printf("Remote working directory: %s\n", *pwd);
-		break;
-	case I_LPWD:
-		if (!getcwd(path_buf, sizeof(path_buf))) {
-			error("Couldn't get local cwd: %s", strerror(errno));
-			err = -1;
-			break;
-		}
-		printf("Local working directory: %s\n", path_buf);
-		break;
-	case I_QUIT:
-		/* Processed below */
-		break;
-	case I_HELP:
-		help();
-		break;
-	case I_VERSION:
-		printf("SFTP protocol version %u\n", sftp_proto_version(conn));
-		break;
-	case I_PROGRESS:
-		showprogress = !showprogress;
-		if (showprogress)
-			printf("Progress meter enabled\n");
-		else
-			printf("Progress meter disabled\n");
-		break;
-	default:
-		fatal("%d is not implemented", cmdnum);
-	}
-
-	if (g.gl_pathc)
-		globfree(&g);
-	if (path1)
-		xfree(path1);
-	if (path2)
-		xfree(path2);
-
-	/* If an unignored error occurs in batch mode we should abort. */
-	if (err_abort && err != 0)
-		return (-1);
-	else if (cmdnum == I_QUIT)
-		return (1);
-
-	return (0);
-}
-
-int
-interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
-{
-	char *pwd;
-	char *dir = NULL;
-	char cmd[2048];
-	struct sftp_conn *conn;
-	int err;
-
-	conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
-	if (conn == NULL)
-		fatal("Couldn't initialise connection to server");
-
-	pwd = do_realpath(conn, ".");
-	if (pwd == NULL)
-		fatal("Need cwd");
-
-	if (file1 != NULL) {