blob: 2e680e9f3e5d69b90f6e3d6ccb063344e29dcf77 [file] [log] [blame]
Damien Miller57c30112006-03-26 14:24:48 +11001/* $OpenBSD: sftp-common.c,v 1.13 2006/03/25 13:17:02 djm Exp $ */
Damien Miller33804262001-02-04 23:20:18 +11002/*
3 * Copyright (c) 2001 Markus Friedl. All rights reserved.
4 * Copyright (c) 2001 Damien Miller. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "includes.h"
Damien Millerf17883e2006-03-15 11:45:54 +110028
29#include <sys/types.h>
30#include <sys/stat.h>
Damien Miller33804262001-02-04 23:20:18 +110031
32#include "buffer.h"
33#include "bufaux.h"
Damien Miller33804262001-02-04 23:20:18 +110034#include "log.h"
35#include "xmalloc.h"
36
37#include "sftp.h"
38#include "sftp-common.h"
39
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000040/* Clear contents of attributes structure */
Damien Miller33804262001-02-04 23:20:18 +110041void
42attrib_clear(Attrib *a)
43{
44 a->flags = 0;
45 a->size = 0;
46 a->uid = 0;
47 a->gid = 0;
48 a->perm = 0;
49 a->atime = 0;
50 a->mtime = 0;
51}
52
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000053/* Convert from struct stat to filexfer attribs */
Damien Miller33804262001-02-04 23:20:18 +110054void
Damien Millerf58b58c2003-11-17 21:18:23 +110055stat_to_attrib(const struct stat *st, Attrib *a)
Damien Miller33804262001-02-04 23:20:18 +110056{
57 attrib_clear(a);
58 a->flags = 0;
59 a->flags |= SSH2_FILEXFER_ATTR_SIZE;
60 a->size = st->st_size;
61 a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
62 a->uid = st->st_uid;
63 a->gid = st->st_gid;
64 a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
65 a->perm = st->st_mode;
66 a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
67 a->atime = st->st_atime;
68 a->mtime = st->st_mtime;
69}
70
Damien Millere1a49812002-09-12 09:54:25 +100071/* Convert from filexfer attribs to struct stat */
72void
Damien Millerf58b58c2003-11-17 21:18:23 +110073attrib_to_stat(const Attrib *a, struct stat *st)
Damien Millere1a49812002-09-12 09:54:25 +100074{
75 memset(st, 0, sizeof(*st));
76
77 if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
78 st->st_size = a->size;
79 if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
80 st->st_uid = a->uid;
81 st->st_gid = a->gid;
82 }
83 if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
84 st->st_mode = a->perm;
85 if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
86 st->st_atime = a->atime;
87 st->st_mtime = a->mtime;
88 }
89}
90
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000091/* Decode attributes in buffer */
Damien Miller33804262001-02-04 23:20:18 +110092Attrib *
93decode_attrib(Buffer *b)
94{
95 static Attrib a;
Ben Lindstromb1f483f2002-06-23 21:27:18 +000096
Damien Miller33804262001-02-04 23:20:18 +110097 attrib_clear(&a);
98 a.flags = buffer_get_int(b);
99 if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
100 a.size = buffer_get_int64(b);
101 if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
102 a.uid = buffer_get_int(b);
103 a.gid = buffer_get_int(b);
104 }
105 if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
106 a.perm = buffer_get_int(b);
107 if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
108 a.atime = buffer_get_int(b);
109 a.mtime = buffer_get_int(b);
110 }
111 /* vendor-specific extensions */
112 if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
113 char *type, *data;
114 int i, count;
Ben Lindstromb1f483f2002-06-23 21:27:18 +0000115
Damien Miller33804262001-02-04 23:20:18 +1100116 count = buffer_get_int(b);
117 for (i = 0; i < count; i++) {
118 type = buffer_get_string(b, NULL);
119 data = buffer_get_string(b, NULL);
120 debug3("Got file attribute \"%s\"", type);
121 xfree(type);
122 xfree(data);
123 }
124 }
125 return &a;
126}
127
Ben Lindstrom4cc240d2001-07-04 04:46:56 +0000128/* Encode attributes to buffer */
Damien Miller33804262001-02-04 23:20:18 +1100129void
Damien Millerf58b58c2003-11-17 21:18:23 +1100130encode_attrib(Buffer *b, const Attrib *a)
Damien Miller33804262001-02-04 23:20:18 +1100131{
132 buffer_put_int(b, a->flags);
133 if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
134 buffer_put_int64(b, a->size);
135 if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
136 buffer_put_int(b, a->uid);
137 buffer_put_int(b, a->gid);
138 }
139 if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
140 buffer_put_int(b, a->perm);
141 if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
142 buffer_put_int(b, a->atime);
143 buffer_put_int(b, a->mtime);
144 }
145}
146
Ben Lindstrom4cc240d2001-07-04 04:46:56 +0000147/* Convert from SSH2_FX_ status to text error message */
Damien Miller33804262001-02-04 23:20:18 +1100148const char *
149fx2txt(int status)
150{
151 switch (status) {
152 case SSH2_FX_OK:
Damien Millerd7686fd2001-02-10 00:40:03 +1100153 return("No error");
Damien Miller33804262001-02-04 23:20:18 +1100154 case SSH2_FX_EOF:
Damien Millerd7686fd2001-02-10 00:40:03 +1100155 return("End of file");
Damien Miller33804262001-02-04 23:20:18 +1100156 case SSH2_FX_NO_SUCH_FILE:
Damien Millerd7686fd2001-02-10 00:40:03 +1100157 return("No such file or directory");
Damien Miller33804262001-02-04 23:20:18 +1100158 case SSH2_FX_PERMISSION_DENIED:
Damien Millerd7686fd2001-02-10 00:40:03 +1100159 return("Permission denied");
Damien Miller33804262001-02-04 23:20:18 +1100160 case SSH2_FX_FAILURE:
161 return("Failure");
162 case SSH2_FX_BAD_MESSAGE:
163 return("Bad message");
164 case SSH2_FX_NO_CONNECTION:
165 return("No connection");
166 case SSH2_FX_CONNECTION_LOST:
167 return("Connection lost");
168 case SSH2_FX_OP_UNSUPPORTED:
169 return("Operation unsupported");
170 default:
171 return("Unknown status");
Ben Lindstromd05487d2001-12-06 17:50:03 +0000172 }
Damien Miller33804262001-02-04 23:20:18 +1100173 /* NOTREACHED */
174}
Damien Millere1a49812002-09-12 09:54:25 +1000175
176/*
177 * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
178 */
179char *
Damien Millerf58b58c2003-11-17 21:18:23 +1100180ls_file(const char *name, const struct stat *st, int remote)
Damien Millere1a49812002-09-12 09:54:25 +1000181{
182 int ulen, glen, sz = 0;
183 struct passwd *pw;
184 struct group *gr;
185 struct tm *ltime = localtime(&st->st_mtime);
186 char *user, *group;
187 char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
188
189 strmode(st->st_mode, mode);
190 if (!remote && (pw = getpwuid(st->st_uid)) != NULL) {
191 user = pw->pw_name;
192 } else {
193 snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
194 user = ubuf;
195 }
196 if (!remote && (gr = getgrgid(st->st_gid)) != NULL) {
197 group = gr->gr_name;
198 } else {
199 snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
200 group = gbuf;
201 }
202 if (ltime != NULL) {
203 if (time(NULL) - st->st_mtime < (365*24*60*60)/2)
204 sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
205 else
206 sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
207 }
208 if (sz == 0)
209 tbuf[0] = '\0';
210 ulen = MAX(strlen(user), 8);
211 glen = MAX(strlen(group), 8);
Damien Miller04bd8b02003-05-25 14:38:33 +1000212 snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
213 (u_int)st->st_nlink, ulen, user, glen, group,
Ben Lindstrom08513812002-11-09 15:40:34 +0000214 (unsigned long long)st->st_size, tbuf, name);
Damien Millere1a49812002-09-12 09:54:25 +1000215 return xstrdup(buf);
216}