Put ssh back into the repository
Change-Id: I23324372188fa6ed3f93a32b84365f5df6367590
diff --git a/sftp-common.c b/sftp-common.c
new file mode 100644
index 0000000..a042875
--- /dev/null
+++ b/sftp-common.c
@@ -0,0 +1,232 @@
+/* $OpenBSD: sftp-common.c,v 1.23 2010/01/15 09:24:23 markus Exp $ */
+/*
+ * Copyright (c) 2001 Markus Friedl. All rights reserved.
+ * Copyright (c) 2001 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.
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <stdarg.h>
+#ifdef HAVE_UTIL_H
+#include <util.h>
+#endif
+
+#include "xmalloc.h"
+#include "buffer.h"
+#include "log.h"
+
+#include "sftp.h"
+#include "sftp-common.h"
+
+/* Clear contents of attributes structure */
+void
+attrib_clear(Attrib *a)
+{
+ a->flags = 0;
+ a->size = 0;
+ a->uid = 0;
+ a->gid = 0;
+ a->perm = 0;
+ a->atime = 0;
+ a->mtime = 0;
+}
+
+/* Convert from struct stat to filexfer attribs */
+void
+stat_to_attrib(const struct stat *st, Attrib *a)
+{
+ attrib_clear(a);
+ a->flags = 0;
+ a->flags |= SSH2_FILEXFER_ATTR_SIZE;
+ a->size = st->st_size;
+ a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
+ a->uid = st->st_uid;
+ a->gid = st->st_gid;
+ a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
+ a->perm = st->st_mode;
+ a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
+ a->atime = st->st_atime;
+ a->mtime = st->st_mtime;
+}
+
+/* Convert from filexfer attribs to struct stat */
+void
+attrib_to_stat(const Attrib *a, struct stat *st)
+{
+ memset(st, 0, sizeof(*st));
+
+ if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
+ st->st_size = a->size;
+ if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
+ st->st_uid = a->uid;
+ st->st_gid = a->gid;
+ }
+ if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
+ st->st_mode = a->perm;
+ if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
+ st->st_atime = a->atime;
+ st->st_mtime = a->mtime;
+ }
+}
+
+/* Decode attributes in buffer */
+Attrib *
+decode_attrib(Buffer *b)
+{
+ static Attrib a;
+
+ attrib_clear(&a);
+ a.flags = buffer_get_int(b);
+ if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
+ a.size = buffer_get_int64(b);
+ if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
+ a.uid = buffer_get_int(b);
+ a.gid = buffer_get_int(b);
+ }
+ if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
+ a.perm = buffer_get_int(b);
+ if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
+ a.atime = buffer_get_int(b);
+ a.mtime = buffer_get_int(b);
+ }
+ /* vendor-specific extensions */
+ if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
+ char *type, *data;
+ int i, count;
+
+ count = buffer_get_int(b);
+ for (i = 0; i < count; i++) {
+ type = buffer_get_string(b, NULL);
+ data = buffer_get_string(b, NULL);
+ debug3("Got file attribute \"%s\"", type);
+ xfree(type);
+ xfree(data);
+ }
+ }
+ return &a;
+}
+
+/* Encode attributes to buffer */
+void
+encode_attrib(Buffer *b, const Attrib *a)
+{
+ buffer_put_int(b, a->flags);
+ if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
+ buffer_put_int64(b, a->size);
+ if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
+ buffer_put_int(b, a->uid);
+ buffer_put_int(b, a->gid);
+ }
+ if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
+ buffer_put_int(b, a->perm);
+ if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
+ buffer_put_int(b, a->atime);
+ buffer_put_int(b, a->mtime);
+ }
+}
+
+/* Convert from SSH2_FX_ status to text error message */
+const char *
+fx2txt(int status)
+{
+ switch (status) {
+ case SSH2_FX_OK:
+ return("No error");
+ case SSH2_FX_EOF:
+ return("End of file");
+ case SSH2_FX_NO_SUCH_FILE:
+ return("No such file or directory");
+ case SSH2_FX_PERMISSION_DENIED:
+ return("Permission denied");
+ case SSH2_FX_FAILURE:
+ return("Failure");
+ case SSH2_FX_BAD_MESSAGE:
+ return("Bad message");
+ case SSH2_FX_NO_CONNECTION:
+ return("No connection");
+ case SSH2_FX_CONNECTION_LOST:
+ return("Connection lost");
+ case SSH2_FX_OP_UNSUPPORTED:
+ return("Operation unsupported");
+ default:
+ return("Unknown status");
+ }
+ /* NOTREACHED */
+}
+
+/*
+ * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
+ */
+char *
+ls_file(const char *name, const struct stat *st, int remote, int si_units)
+{
+ int ulen, glen, sz = 0;
+ struct tm *ltime = localtime(&st->st_mtime);
+ char *user, *group;
+ char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
+ char sbuf[FMT_SCALED_STRSIZE];
+
+ strmode(st->st_mode, mode);
+ if (!remote) {
+ user = user_from_uid(st->st_uid, 0);
+ } else {
+ snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
+ user = ubuf;
+ }
+ if (!remote) {
+ group = group_from_gid(st->st_gid, 0);
+ } else {
+ snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
+ group = gbuf;
+ }
+ if (ltime != NULL) {
+ if (time(NULL) - st->st_mtime < (365*24*60*60)/2)
+ sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
+ else
+ sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
+ }
+ if (sz == 0)
+ tbuf[0] = '\0';
+ ulen = MAX(strlen(user), 8);
+ glen = MAX(strlen(group), 8);
+ if (si_units) {
+ fmt_scaled((long long)st->st_size, sbuf);
+ snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8s %s %s", mode,
+ (u_int)st->st_nlink, ulen, user, glen, group,
+ sbuf, tbuf, name);
+ } else {
+ snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
+ (u_int)st->st_nlink, ulen, user, glen, group,
+ (unsigned long long)st->st_size, tbuf, name);
+ }
+ return xstrdup(buf);
+}