Annotation of src/usr.bin/ssh/sftp-common.c, Revision 1.18
1.18 ! stevesk 1: /* $OpenBSD: sftp-common.c,v 1.17 2006/07/22 20:48:23 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>
1.18 ! stevesk 31: #include <sys/param.h>
1.14 stevesk 32:
33: #include <grp.h>
1.15 stevesk 34: #include <pwd.h>
1.17 stevesk 35: #include <string.h>
1.16 stevesk 36: #include <time.h>
1.1 djm 37:
38: #include "buffer.h"
39: #include "bufaux.h"
40: #include "log.h"
41: #include "xmalloc.h"
42:
43: #include "sftp.h"
44: #include "sftp-common.h"
45:
1.3 markus 46: /* Clear contents of attributes structure */
1.1 djm 47: void
48: attrib_clear(Attrib *a)
49: {
50: a->flags = 0;
51: a->size = 0;
52: a->uid = 0;
53: a->gid = 0;
54: a->perm = 0;
55: a->atime = 0;
56: a->mtime = 0;
57: }
58:
1.3 markus 59: /* Convert from struct stat to filexfer attribs */
1.1 djm 60: void
1.10 jakob 61: stat_to_attrib(const struct stat *st, Attrib *a)
1.1 djm 62: {
63: attrib_clear(a);
64: a->flags = 0;
65: a->flags |= SSH2_FILEXFER_ATTR_SIZE;
66: a->size = st->st_size;
67: a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
68: a->uid = st->st_uid;
69: a->gid = st->st_gid;
70: a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
71: a->perm = st->st_mode;
72: a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
73: a->atime = st->st_atime;
74: a->mtime = st->st_mtime;
75: }
76:
1.7 djm 77: /* Convert from filexfer attribs to struct stat */
78: void
1.10 jakob 79: attrib_to_stat(const Attrib *a, struct stat *st)
1.7 djm 80: {
81: memset(st, 0, sizeof(*st));
82:
83: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
84: st->st_size = a->size;
85: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
86: st->st_uid = a->uid;
87: st->st_gid = a->gid;
88: }
89: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
90: st->st_mode = a->perm;
91: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
92: st->st_atime = a->atime;
93: st->st_mtime = a->mtime;
94: }
95: }
96:
1.3 markus 97: /* Decode attributes in buffer */
1.1 djm 98: Attrib *
99: decode_attrib(Buffer *b)
100: {
101: static Attrib a;
1.6 deraadt 102:
1.1 djm 103: attrib_clear(&a);
104: a.flags = buffer_get_int(b);
105: if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
106: a.size = buffer_get_int64(b);
107: if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
108: a.uid = buffer_get_int(b);
109: a.gid = buffer_get_int(b);
110: }
111: if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
112: a.perm = buffer_get_int(b);
113: if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
114: a.atime = buffer_get_int(b);
115: a.mtime = buffer_get_int(b);
116: }
117: /* vendor-specific extensions */
118: if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
119: char *type, *data;
120: int i, count;
1.6 deraadt 121:
1.1 djm 122: count = buffer_get_int(b);
123: for (i = 0; i < count; i++) {
124: type = buffer_get_string(b, NULL);
125: data = buffer_get_string(b, NULL);
126: debug3("Got file attribute \"%s\"", type);
127: xfree(type);
128: xfree(data);
129: }
130: }
131: return &a;
132: }
133:
1.3 markus 134: /* Encode attributes to buffer */
1.1 djm 135: void
1.10 jakob 136: encode_attrib(Buffer *b, const Attrib *a)
1.1 djm 137: {
138: buffer_put_int(b, a->flags);
139: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
140: buffer_put_int64(b, a->size);
141: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
142: buffer_put_int(b, a->uid);
143: buffer_put_int(b, a->gid);
144: }
145: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
146: buffer_put_int(b, a->perm);
147: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
148: buffer_put_int(b, a->atime);
149: buffer_put_int(b, a->mtime);
150: }
151: }
152:
1.3 markus 153: /* Convert from SSH2_FX_ status to text error message */
1.1 djm 154: const char *
155: fx2txt(int status)
156: {
157: switch (status) {
158: case SSH2_FX_OK:
1.2 markus 159: return("No error");
1.1 djm 160: case SSH2_FX_EOF:
1.2 markus 161: return("End of file");
1.1 djm 162: case SSH2_FX_NO_SUCH_FILE:
1.2 markus 163: return("No such file or directory");
1.1 djm 164: case SSH2_FX_PERMISSION_DENIED:
1.2 markus 165: return("Permission denied");
1.1 djm 166: case SSH2_FX_FAILURE:
167: return("Failure");
168: case SSH2_FX_BAD_MESSAGE:
169: return("Bad message");
170: case SSH2_FX_NO_CONNECTION:
171: return("No connection");
172: case SSH2_FX_CONNECTION_LOST:
173: return("Connection lost");
174: case SSH2_FX_OP_UNSUPPORTED:
175: return("Operation unsupported");
176: default:
177: return("Unknown status");
1.5 deraadt 178: }
1.1 djm 179: /* NOTREACHED */
1.7 djm 180: }
181:
182: /*
183: * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
184: */
185: char *
1.10 jakob 186: ls_file(const char *name, const struct stat *st, int remote)
1.7 djm 187: {
188: int ulen, glen, sz = 0;
189: struct passwd *pw;
190: struct group *gr;
191: struct tm *ltime = localtime(&st->st_mtime);
192: char *user, *group;
193: char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
194:
195: strmode(st->st_mode, mode);
196: if (!remote && (pw = getpwuid(st->st_uid)) != NULL) {
197: user = pw->pw_name;
198: } else {
199: snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
200: user = ubuf;
201: }
202: if (!remote && (gr = getgrgid(st->st_gid)) != NULL) {
203: group = gr->gr_name;
204: } else {
205: snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
206: group = gbuf;
207: }
208: if (ltime != NULL) {
209: if (time(NULL) - st->st_mtime < (365*24*60*60)/2)
210: sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
211: else
212: sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
213: }
214: if (sz == 0)
215: tbuf[0] = '\0';
216: ulen = MAX(strlen(user), 8);
217: glen = MAX(strlen(group), 8);
1.9 djm 218: snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
219: (u_int)st->st_nlink, ulen, user, glen, group,
1.8 itojun 220: (unsigned long long)st->st_size, tbuf, name);
1.7 djm 221: return xstrdup(buf);
1.1 djm 222: }
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