Annotation of src/usr.bin/ssh/sftp-common.c, Revision 1.26
1.26 ! guenther 1: /* $OpenBSD: sftp-common.c,v 1.25 2013/11/08 11:15:19 dtucker 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:
1.11 stevesk 27: #include <sys/types.h>
28: #include <sys/stat.h>
1.18 stevesk 29: #include <sys/param.h>
1.14 stevesk 30:
31: #include <grp.h>
1.15 stevesk 32: #include <pwd.h>
1.19 stevesk 33: #include <stdio.h>
1.17 stevesk 34: #include <string.h>
1.16 stevesk 35: #include <time.h>
1.20 deraadt 36: #include <stdarg.h>
1.25 dtucker 37: #include <stdlib.h>
1.21 djm 38: #include <util.h>
1.1 djm 39:
1.20 deraadt 40: #include "xmalloc.h"
1.1 djm 41: #include "buffer.h"
42: #include "log.h"
43:
44: #include "sftp.h"
45: #include "sftp-common.h"
46:
1.3 markus 47: /* Clear contents of attributes structure */
1.1 djm 48: void
49: attrib_clear(Attrib *a)
50: {
51: a->flags = 0;
52: a->size = 0;
53: a->uid = 0;
54: a->gid = 0;
55: a->perm = 0;
56: a->atime = 0;
57: a->mtime = 0;
58: }
59:
1.3 markus 60: /* Convert from struct stat to filexfer attribs */
1.1 djm 61: void
1.10 jakob 62: stat_to_attrib(const struct stat *st, Attrib *a)
1.1 djm 63: {
64: attrib_clear(a);
65: a->flags = 0;
66: a->flags |= SSH2_FILEXFER_ATTR_SIZE;
67: a->size = st->st_size;
68: a->flags |= SSH2_FILEXFER_ATTR_UIDGID;
69: a->uid = st->st_uid;
70: a->gid = st->st_gid;
71: a->flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
72: a->perm = st->st_mode;
73: a->flags |= SSH2_FILEXFER_ATTR_ACMODTIME;
74: a->atime = st->st_atime;
75: a->mtime = st->st_mtime;
76: }
77:
1.7 djm 78: /* Convert from filexfer attribs to struct stat */
79: void
1.10 jakob 80: attrib_to_stat(const Attrib *a, struct stat *st)
1.7 djm 81: {
82: memset(st, 0, sizeof(*st));
83:
84: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
85: st->st_size = a->size;
86: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
87: st->st_uid = a->uid;
88: st->st_gid = a->gid;
89: }
90: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
91: st->st_mode = a->perm;
92: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
93: st->st_atime = a->atime;
94: st->st_mtime = a->mtime;
95: }
96: }
97:
1.3 markus 98: /* Decode attributes in buffer */
1.1 djm 99: Attrib *
100: decode_attrib(Buffer *b)
101: {
102: static Attrib a;
1.6 deraadt 103:
1.1 djm 104: attrib_clear(&a);
105: a.flags = buffer_get_int(b);
106: if (a.flags & SSH2_FILEXFER_ATTR_SIZE)
107: a.size = buffer_get_int64(b);
108: if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
109: a.uid = buffer_get_int(b);
110: a.gid = buffer_get_int(b);
111: }
112: if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
113: a.perm = buffer_get_int(b);
114: if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
115: a.atime = buffer_get_int(b);
116: a.mtime = buffer_get_int(b);
117: }
118: /* vendor-specific extensions */
119: if (a.flags & SSH2_FILEXFER_ATTR_EXTENDED) {
120: char *type, *data;
121: int i, count;
1.6 deraadt 122:
1.1 djm 123: count = buffer_get_int(b);
124: for (i = 0; i < count; i++) {
125: type = buffer_get_string(b, NULL);
126: data = buffer_get_string(b, NULL);
127: debug3("Got file attribute \"%s\"", type);
1.24 djm 128: free(type);
129: free(data);
1.1 djm 130: }
131: }
132: return &a;
133: }
134:
1.3 markus 135: /* Encode attributes to buffer */
1.1 djm 136: void
1.10 jakob 137: encode_attrib(Buffer *b, const Attrib *a)
1.1 djm 138: {
139: buffer_put_int(b, a->flags);
140: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
141: buffer_put_int64(b, a->size);
142: if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) {
143: buffer_put_int(b, a->uid);
144: buffer_put_int(b, a->gid);
145: }
146: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
147: buffer_put_int(b, a->perm);
148: if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
149: buffer_put_int(b, a->atime);
150: buffer_put_int(b, a->mtime);
151: }
152: }
153:
1.3 markus 154: /* Convert from SSH2_FX_ status to text error message */
1.1 djm 155: const char *
156: fx2txt(int status)
157: {
158: switch (status) {
159: case SSH2_FX_OK:
1.2 markus 160: return("No error");
1.1 djm 161: case SSH2_FX_EOF:
1.2 markus 162: return("End of file");
1.1 djm 163: case SSH2_FX_NO_SUCH_FILE:
1.2 markus 164: return("No such file or directory");
1.1 djm 165: case SSH2_FX_PERMISSION_DENIED:
1.2 markus 166: return("Permission denied");
1.1 djm 167: case SSH2_FX_FAILURE:
168: return("Failure");
169: case SSH2_FX_BAD_MESSAGE:
170: return("Bad message");
171: case SSH2_FX_NO_CONNECTION:
172: return("No connection");
173: case SSH2_FX_CONNECTION_LOST:
174: return("Connection lost");
175: case SSH2_FX_OP_UNSUPPORTED:
176: return("Operation unsupported");
177: default:
178: return("Unknown status");
1.5 deraadt 179: }
1.1 djm 180: /* NOTREACHED */
1.7 djm 181: }
182:
183: /*
184: * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh
185: */
186: char *
1.21 djm 187: ls_file(const char *name, const struct stat *st, int remote, int si_units)
1.7 djm 188: {
189: int ulen, glen, sz = 0;
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];
1.21 djm 193: char sbuf[FMT_SCALED_STRSIZE];
1.26 ! guenther 194: time_t now;
1.7 djm 195:
196: strmode(st->st_mode, mode);
1.22 dtucker 197: if (!remote) {
198: user = user_from_uid(st->st_uid, 0);
1.7 djm 199: } else {
200: snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
201: user = ubuf;
202: }
1.22 dtucker 203: if (!remote) {
204: group = group_from_gid(st->st_gid, 0);
1.7 djm 205: } else {
206: snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
207: group = gbuf;
208: }
209: if (ltime != NULL) {
1.26 ! guenther 210: now = time(NULL);
! 211: if (now - (365*24*60*60)/2 < st->st_mtime &&
! 212: now >= st->st_mtime)
1.7 djm 213: sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime);
214: else
215: sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime);
216: }
217: if (sz == 0)
218: tbuf[0] = '\0';
219: ulen = MAX(strlen(user), 8);
220: glen = MAX(strlen(group), 8);
1.21 djm 221: if (si_units) {
222: fmt_scaled((long long)st->st_size, sbuf);
223: snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8s %s %s", mode,
224: (u_int)st->st_nlink, ulen, user, glen, group,
225: sbuf, tbuf, name);
226: } else {
227: snprintf(buf, sizeof buf, "%s %3u %-*s %-*s %8llu %s %s", mode,
228: (u_int)st->st_nlink, ulen, user, glen, group,
229: (unsigned long long)st->st_size, tbuf, name);
230: }
1.7 djm 231: return xstrdup(buf);
1.1 djm 232: }
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