1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Just in case we're not in a build environment, make sure that
* TEXT_DOMAIN gets set to something.
*/
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
/*
* patch /etc/vfstab file
*/
#include <meta.h>
#include <string.h>
/*
* patch filesystem lines into vfstab file, return tempfilename
*/
int
meta_patch_vfstab(
char *cmpname, /* filesystem mount point or */
/* "swap" if updating swap partition */
mdname_t *fsnp, /* filesystem device name */
char *vname, /* vfstab file name */
char *old_bdevname, /* old name of block device, needed */
/* for deciding which of multiple */
/* swap file entries to change */
/* if NULL then not changing swap */
int doit, /* really patch file */
int verbose, /* show what we're doing */
char **tname, /* returned temp file name */
md_error_t *ep /* returned error */
)
{
char *chrname = fsnp->rname;
char *blkname = fsnp->bname;
FILE *fp = NULL;
FILE *tfp = NULL;
struct stat sbuf;
char buf[512];
char cdev[512];
char bdev[512];
char mntpt[512];
char fstype[512];
char fsckpass[512];
char mntboot[512];
char mntopt[512];
int gotfs = 0;
char *cmpstr = &mntpt[0]; /* compare against mntpnt if fs, */
/* or fstype if swap */
char *char_device = chrname;
/* check names */
assert(vname != NULL);
assert(tname != NULL);
/* get temp names */
*tname = NULL;
*tname = Malloc(strlen(vname) + strlen(".tmp") + 1);
(void) strcpy(*tname, vname);
(void) strcat(*tname, ".tmp");
/* check if going to update swap entry in file */
/* if so then compare against file system type */
if ((old_bdevname != NULL) && (strcmp("swap", cmpname) == 0)) {
cmpstr = &fstype[0];
char_device = &cdev[0];
}
/* copy vfstab file, replace filesystem line */
if ((fp = fopen(vname, "r")) == NULL) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
if (fstat(fileno(fp), &sbuf) != 0) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
if (doit) {
if ((tfp = fopen(*tname, "w")) == NULL) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
if (fchmod(fileno(tfp), (sbuf.st_mode & 0777)) != 0) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
if (fchown(fileno(tfp), sbuf.st_uid, sbuf.st_gid) != 0) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
}
while (fgets(buf, sizeof (buf), fp) != NULL) {
/* check that have all required params from vfstab file */
/* or that the line isnt a comment */
/* or that the fstype/mntpoint match what was passed in */
/* or that the block device matches if changing swap */
/* the last check is needed since there may be multiple */
/* entries of swap in the file, and so the fstype is not */
/* a sufficient check */
if ((sscanf(buf, "%512s %512s %512s %512s %512s %512s %512s",
bdev, cdev, mntpt, fstype, fsckpass,
mntboot, mntopt) != 7) ||
(bdev[0] == '#') || (strcmp(cmpstr, cmpname) != 0) ||
((old_bdevname != NULL) &&
(strstr(bdev, old_bdevname) == NULL))) {
if (doit) {
if (fputs(buf, tfp) == EOF) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
}
continue;
}
if (verbose) {
(void) printf(dgettext(TEXT_DOMAIN,
"Delete the following line from %s:\n\n"),
vname);
(void) printf("%s\n", buf);
(void) printf(
dgettext(TEXT_DOMAIN,
"Add the following line to %s:\n\n"),
vname);
(void) printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n",
blkname, char_device, mntpt, fstype, fsckpass,
mntboot, mntopt);
}
if (doit) {
if (fprintf(tfp, "%s\t%s\t%s\t%s\t%s\t%s\t%s\n",
blkname, char_device, mntpt, fstype, fsckpass,
mntboot, mntopt) == EOF) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
}
gotfs = 1;
}
if (! feof(fp)) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
if (! gotfs) {
(void) mderror(ep, MDE_VFSTAB_FILE, vname);
goto out;
}
if (fclose(fp) != 0) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
fp = NULL;
if (doit) {
if ((fflush(tfp) != 0) ||
(fsync(fileno(tfp)) != 0) ||
(fclose(tfp) != 0)) {
(void) mdsyserror(ep, errno, *tname);
goto out;
}
tfp = NULL;
}
/* return success */
return (0);
/* cleanup, return error */
out:
if (fp != NULL)
(void) fclose(fp);
if (tfp != NULL)
(void) fclose(tfp);
if (*tname != NULL) {
(void) unlink(*tname);
Free(*tname);
}
return (-1);
}
/*
* set filesystem device name in vfstab
*/
int
meta_patch_fsdev(
char *fsname, /* filesystem mount point */
mdname_t *fsnp, /* filesystem device */
char *vname, /* vfstab file name */
md_error_t *ep /* returned error */
)
{
int doit = 1;
int verbose = 0;
char *tvname = NULL;
int rval = -1;
/* check names */
assert(fsname != NULL);
if (vname == NULL)
vname = "/etc/vfstab";
/* replace lines in vfstab */
if (meta_patch_vfstab(fsname, fsnp, vname, NULL, doit, verbose, &tvname,
ep) != 0) {
goto out;
}
/* rename temp file on top of real one */
if (rename(tvname, vname) != 0) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
Free(tvname);
tvname = NULL;
rval = 0;
/* cleanup, return error */
out:
if (tvname != NULL) {
if (doit)
(void) unlink(tvname);
Free(tvname);
}
return (rval);
}
/*
* set filesystem device name in vfstab
*/
int
meta_patch_swapdev(
mdname_t *fsnp, /* filesystem device */
char *vname, /* vfstab file name */
char *old_bdevname, /* block device name to change */
md_error_t *ep /* returned error */
)
{
int doit = 1;
int verbose = 0;
char *tvname = NULL;
int rval = -1;
/* check names */
if (vname == NULL)
vname = "/etc/vfstab";
/* replace lines in vfstab */
if (meta_patch_vfstab("swap", fsnp, vname, old_bdevname, doit,
verbose, &tvname, ep) != 0) {
goto out;
}
/* rename temp file on top of real one */
if (rename(tvname, vname) != 0) {
(void) mdsyserror(ep, errno, vname);
goto out;
}
Free(tvname);
tvname = NULL;
rval = 0;
/* cleanup, return error */
out:
if (tvname != NULL) {
if (doit)
(void) unlink(tvname);
Free(tvname);
}
return (rval);
}
|
