Annotation of src/usr.bin/ssh/sftp-common.c, Revision 1.17
1.17 ! stevesk 1: /* $OpenBSD: sftp-common.c,v 1.16 2006/07/22 19:08:54 stevesk Exp $ */
1.1 djm 2: /*
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"
1.11 stevesk 28:
29: #include <sys/types.h>
30: #include <sys/stat.h>
1.14 stevesk 31:
32: #include <grp.h>
1.15 stevesk 33: #include <pwd.h>
1.17 ! stevesk 34: #include <string.h>
1.16 stevesk 35: #include <time.h>
1.1 djm 36:
37: #include "buffer.h"
38: #include "bufaux.h"
39: #include "log.h"
40: #include "xmalloc.h"
41:
42: #include "sftp.h"
43: #include "sftp-common.h"
44:
1.3 markus 45: /* Clear contents of attributes structure */
1.1 djm 46: void
47: attrib_clear(Attrib *a)
48: {
49: a->flags = 0;
50: a->size = 0;
51: a->uid = 0;
52: a->gid = 0;
53: a->perm = 0;
54: a->atime = 0;
55: a->mtime = 0;
56: }
57:
1.3 markus 58: /* Convert from struct stat to filexfer attribs */
1.1 djm 59: void
1.10 jakob 60: stat_to_attrib(const struct stat *st, Attrib *a)
1.1 djm 61: {
62: attrib_clear(a);
63: a->flags = 0;
64: a->flags |= SSH2_FILEXFER_ATTR_SIZE;
65: a->size = st->st_size;
66: a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
67: a->uid = st->st_uid;
68: a->gid = st->st_gid;
69: a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
70: a->perm = st->st_mode;
71: a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
72: a->atime = st->st_atime;
73: a->mtime = st->st_mtime;
74: }
75:
1.7 djm 76: /* Convert from filexfer attribs to struct stat */
77: void
1.10 jakob 78: attrib_to_stat(const Attrib *a, struct stat *st)
1.7 djm 79: {
80: memset(st, 0, sizeof(*st));
81:
82: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
83: st->st_size = a->size;
84: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
85: st->st_uid = a->uid;
86: st->st_gid = a->gid;
87: }
88: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
89: st->st_mode = a->perm;
90: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
91: st->st_atime = a->atime;
92: st->st_mtime = a->mtime;
93: }
94: }
95:
1.3 markus 96: /* Decode attributes in buffer */
1.1 djm 97: Attrib *
98: decode_attrib(Buffer *b)
99: {
100: static Attrib a;
1.6 deraadt 101:
1.1 djm 102: attrib_clear(&a);
103: a.flags = buffer_get_int(b);
104: if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
105: a.size = buffer_get_int64(b);
106: if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
107: a.uid = buffer_get_int(b);
108: a.gid = buffer_get_int(b);
109: }
110: if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
111: a.perm = buffer_get_int(b);
112: if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
113: a.atime = buffer_get_int(b);
114: a.mtime = buffer_get_int(b);
115: }
116: /* vendor-specific extensions */
117: if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
118: char *type, *data;
119: int i, count;
1.6 deraadt 120:
1.1 djm 121: count = buffer_get_int(b);
122: for (i = 0; i < count; i++) {
123: type = buffer_get_string(b, NULL);
124: data = buffer_get_string(b, NULL);
125: debug3("Got file attribute \"%s\"", type);
126: xfree(type);
127: xfree(data);
128: }
129: }
130: return &a;
131: }
132:
1.3 markus 133: /* Encode attributes to buffer */
1.1 djm 134: void
1.10 jakob 135: encode_attrib(Buffer *b, const Attrib *a)
1.1 djm 136: {
137: buffer_put_int(b, a->flags);
138: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
139: buffer_put_int64(b, a->size);
140: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
141: buffer_put_int(b, a->uid);
142: buffer_put_int(b, a->gid);
143: }
144: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
145: buffer_put_int(b, a->perm);
146: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
147: buffer_put_int(b, a->atime);
148: buffer_put_int(b, a->mtime);
149: }
150: }
151:
1.3 markus 152: /* Convert from SSH2_FX_ status to text error message */
1.1 djm 153: const char *
154: fx2txt(int status)
155: {
156: switch (status) {
157: case SSH2_FX_OK:
1.2 markus 158: return("No error");
1.1 djm 159: case SSH2_FX_EOF:
1.2 markus 160: return("End of file");
1.1 djm 161: case SSH2_FX_NO_SUCH_FILE:
1.2 markus 162: return("No such file or directory");
1.1 djm 163: case SSH2_FX_PERMISSION_DENIED:
1.2 markus 164: return("Permission denied");
1.1 djm 165: case SSH2_FX_FAILURE:
166: return("Failure");
167: case SSH2_FX_BAD_MESSAGE:
168: return("Bad message");
169: case SSH2_FX_NO_CONNECTION:
170: return("No connection");
171: case SSH2_FX_CONNECTION_LOST:
172: return("Connection lost");
173: case SSH2_FX_OP_UNSUPPORTED:
174: return("Operation unsupported");
175: default:
176: return("Unknown status");
1.5 deraadt 177: }
1.1 djm 178: /* NOTREACHED */
1.7 djm 179: }
180:
181: /*
182: * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
183: */
184: char *
1.10 jakob 185: ls_file(const char *name, const struct stat *st, int remote)
1.7 djm 186: {
187: int ulen, glen, sz = 0;
188: struct passwd *pw;
189: struct group *gr;
190: struct tm *ltime = localtime(&st->st_mtime);
191: char *user, *group;
192: char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
193:
194: strmode(st->st_mode, mode);
195: if (!remote && (pw = getpwuid(st->st_uid)) != NULL) {
196: user = pw->pw_name;
197: } else {
198: snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
199: user = ubuf;
200: }
201: if (!remote && (gr = getgrgid(st->st_gid)) != NULL) {
202: group = gr->gr_name;
203: } else {
204: snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
205: group = gbuf;
206: }
207: if (ltime != NULL) {
208: if (time(NULL) - st->st_mtime < (365*24*60*60)/2)
209: sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
210: else
211: sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
212: }
213: if (sz == 0)
214: tbuf[0] = '\0';
215: ulen = MAX(strlen(user), 8);
216: glen = MAX(strlen(group), 8);
1.9 djm 217: snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
218: (u_int)st->st_nlink, ulen, user, glen, group,
1.8 itojun 219: (unsigned long long)st->st_size, tbuf, name);
1.7 djm 220: return xstrdup(buf);
1.1 djm 221: }
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