Annotation of src/usr.bin/ssh/sftp-common.c, Revision 1.15
1.15 ! stevesk 1: /* $OpenBSD: sftp-common.c,v 1.14 2006/07/02 22:45:59 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>
1.1 djm 34:
35: #include "buffer.h"
36: #include "bufaux.h"
37: #include "log.h"
38: #include "xmalloc.h"
39:
40: #include "sftp.h"
41: #include "sftp-common.h"
42:
1.3 markus 43: /* Clear contents of attributes structure */
1.1 djm 44: void
45: attrib_clear(Attrib *a)
46: {
47: a->flags = 0;
48: a->size = 0;
49: a->uid = 0;
50: a->gid = 0;
51: a->perm = 0;
52: a->atime = 0;
53: a->mtime = 0;
54: }
55:
1.3 markus 56: /* Convert from struct stat to filexfer attribs */
1.1 djm 57: void
1.10 jakob 58: stat_to_attrib(const struct stat *st, Attrib *a)
1.1 djm 59: {
60: attrib_clear(a);
61: a->flags = 0;
62: a->flags |= SSH2_FILEXFER_ATTR_SIZE;
63: a->size = st->st_size;
64: a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
65: a->uid = st->st_uid;
66: a->gid = st->st_gid;
67: a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
68: a->perm = st->st_mode;
69: a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
70: a->atime = st->st_atime;
71: a->mtime = st->st_mtime;
72: }
73:
1.7 djm 74: /* Convert from filexfer attribs to struct stat */
75: void
1.10 jakob 76: attrib_to_stat(const Attrib *a, struct stat *st)
1.7 djm 77: {
78: memset(st, 0, sizeof(*st));
79:
80: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
81: st->st_size = a->size;
82: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
83: st->st_uid = a->uid;
84: st->st_gid = a->gid;
85: }
86: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
87: st->st_mode = a->perm;
88: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
89: st->st_atime = a->atime;
90: st->st_mtime = a->mtime;
91: }
92: }
93:
1.3 markus 94: /* Decode attributes in buffer */
1.1 djm 95: Attrib *
96: decode_attrib(Buffer *b)
97: {
98: static Attrib a;
1.6 deraadt 99:
1.1 djm 100: attrib_clear(&a);
101: a.flags = buffer_get_int(b);
102: if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
103: a.size = buffer_get_int64(b);
104: if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
105: a.uid = buffer_get_int(b);
106: a.gid = buffer_get_int(b);
107: }
108: if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
109: a.perm = buffer_get_int(b);
110: if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
111: a.atime = buffer_get_int(b);
112: a.mtime = buffer_get_int(b);
113: }
114: /* vendor-specific extensions */
115: if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
116: char *type, *data;
117: int i, count;
1.6 deraadt 118:
1.1 djm 119: count = buffer_get_int(b);
120: for (i = 0; i < count; i++) {
121: type = buffer_get_string(b, NULL);
122: data = buffer_get_string(b, NULL);
123: debug3("Got file attribute \"%s\"", type);
124: xfree(type);
125: xfree(data);
126: }
127: }
128: return &a;
129: }
130:
1.3 markus 131: /* Encode attributes to buffer */
1.1 djm 132: void
1.10 jakob 133: encode_attrib(Buffer *b, const Attrib *a)
1.1 djm 134: {
135: buffer_put_int(b, a->flags);
136: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
137: buffer_put_int64(b, a->size);
138: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
139: buffer_put_int(b, a->uid);
140: buffer_put_int(b, a->gid);
141: }
142: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
143: buffer_put_int(b, a->perm);
144: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
145: buffer_put_int(b, a->atime);
146: buffer_put_int(b, a->mtime);
147: }
148: }
149:
1.3 markus 150: /* Convert from SSH2_FX_ status to text error message */
1.1 djm 151: const char *
152: fx2txt(int status)
153: {
154: switch (status) {
155: case SSH2_FX_OK:
1.2 markus 156: return("No error");
1.1 djm 157: case SSH2_FX_EOF:
1.2 markus 158: return("End of file");
1.1 djm 159: case SSH2_FX_NO_SUCH_FILE:
1.2 markus 160: return("No such file or directory");
1.1 djm 161: case SSH2_FX_PERMISSION_DENIED:
1.2 markus 162: return("Permission denied");
1.1 djm 163: case SSH2_FX_FAILURE:
164: return("Failure");
165: case SSH2_FX_BAD_MESSAGE:
166: return("Bad message");
167: case SSH2_FX_NO_CONNECTION:
168: return("No connection");
169: case SSH2_FX_CONNECTION_LOST:
170: return("Connection lost");
171: case SSH2_FX_OP_UNSUPPORTED:
172: return("Operation unsupported");
173: default:
174: return("Unknown status");
1.5 deraadt 175: }
1.1 djm 176: /* NOTREACHED */
1.7 djm 177: }
178:
179: /*
180: * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
181: */
182: char *
1.10 jakob 183: ls_file(const char *name, const struct stat *st, int remote)
1.7 djm 184: {
185: int ulen, glen, sz = 0;
186: struct passwd *pw;
187: struct group *gr;
188: struct tm *ltime = localtime(&st->st_mtime);
189: char *user, *group;
190: char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
191:
192: strmode(st->st_mode, mode);
193: if (!remote && (pw = getpwuid(st->st_uid)) != NULL) {
194: user = pw->pw_name;
195: } else {
196: snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
197: user = ubuf;
198: }
199: if (!remote && (gr = getgrgid(st->st_gid)) != NULL) {
200: group = gr->gr_name;
201: } else {
202: snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
203: group = gbuf;
204: }
205: if (ltime != NULL) {
206: if (time(NULL) - st->st_mtime < (365*24*60*60)/2)
207: sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
208: else
209: sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
210: }
211: if (sz == 0)
212: tbuf[0] = '\0';
213: ulen = MAX(strlen(user), 8);
214: glen = MAX(strlen(group), 8);
1.9 djm 215: snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
216: (u_int)st->st_nlink, ulen, user, glen, group,
1.8 itojun 217: (unsigned long long)st->st_size, tbuf, name);
1.7 djm 218: return xstrdup(buf);
1.1 djm 219: }
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