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
|
/*
* Copyright (c) 1997-2001 Erez Zadok
* Copyright (c) 1990 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* %W% (Berkeley) %G%
*
* $Id: util.c,v 1.3.2.1 2001/01/10 03:23:41 ezk Exp $
*
*/
/*
* General Utilities.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amu.h>
char *
strnsave(const char *str, int len)
{
char *sp = (char *) xmalloc(len + 1);
memmove(sp, str, len);
sp[len] = 0;
return sp;
}
/*
* Concatenate three strings and store in buffer pointed to
* by p, making p large enough to hold the strings
*/
char *
str3cat(char *p, char *s1, char *s2, char *s3)
{
int l1 = strlen(s1);
int l2 = strlen(s2);
int l3 = strlen(s3);
p = (char *) xrealloc(p, l1 + l2 + l3 + 1);
memmove(p, s1, l1);
memmove(p + l1, s2, l2);
memmove(p + l1 + l2, s3, l3 + 1);
return p;
}
/*
* Make all the directories in the path.
*/
int
mkdirs(char *path, int mode)
{
/*
* take a copy in case path is in readonly store
*/
char *p2 = strdup(path);
char *sp = p2;
struct stat stb;
int error_so_far = 0;
/*
* Skip through the string make the directories.
* Mostly ignore errors - the result is tested at the end.
*
* This assumes we are root so that we can do mkdir in a
* mode 555 directory...
*/
while ((sp = strchr(sp + 1, '/'))) {
*sp = '\0';
if (mkdir(p2, mode) < 0) {
error_so_far = errno;
} else {
#ifdef DEBUG
dlog("mkdir(%s)", p2);
#endif /* DEBUG */
}
*sp = '/';
}
if (mkdir(p2, mode) < 0) {
error_so_far = errno;
} else {
#ifdef DEBUG
dlog("mkdir(%s)", p2);
#endif /* DEBUG */
}
XFREE(p2);
return stat(path, &stb) == 0 &&
(stb.st_mode & S_IFMT) == S_IFDIR ? 0 : error_so_far;
}
/*
* Remove as many directories in the path as possible.
* Give up if the directory doesn't appear to have
* been created by Amd (not mode dr-x) or an rmdir
* fails for any reason.
*/
void
rmdirs(char *dir)
{
char *xdp = strdup(dir);
char *dp;
do {
struct stat stb;
/*
* Try to find out whether this was
* created by amd. Do this by checking
* for owner write permission.
*/
if (stat(xdp, &stb) == 0 && (stb.st_mode & 0200) == 0) {
if (rmdir(xdp) < 0) {
if (errno != ENOTEMPTY &&
errno != EBUSY &&
errno != EEXIST &&
errno != EINVAL)
plog(XLOG_ERROR, "rmdir(%s): %m", xdp);
break;
} else {
#ifdef DEBUG
dlog("rmdir(%s)", xdp);
#endif /* DEBUG */
}
} else {
break;
}
dp = strrchr(xdp, '/');
if (dp)
*dp = '\0';
} while (dp && dp > xdp);
XFREE(xdp);
}
|
