/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- rk_dumpdata
- rk_undumpdata
1 /*
2 * Copyright (c) 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * 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 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 RCSID("$Id$");
37 #endif
38
39 #include <unistd.h>
40
41 #include "roken.h"
42
43 /*
44 * Write datablob to a filename, don't care about errors.
45 */
46
47 void ROKEN_LIB_FUNCTION
48 rk_dumpdata (const char *filename, const void *buf, size_t size)
/* [<][>][^][v][top][bottom][index][help] */
49 {
50 int fd;
51
52 fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0640);
53 if (fd < 0)
54 return;
55 net_write(fd, buf, size);
56 close(fd);
57 }
58
59 /*
60 * Read all data from a filename, care about errors.
61 */
62
63 int ROKEN_LIB_FUNCTION
64 rk_undumpdata(const char *filename, void **buf, size_t *size)
/* [<][>][^][v][top][bottom][index][help] */
65 {
66 struct stat sb;
67 int fd, ret;
68 ssize_t sret;
69
70 *buf = NULL;
71
72 fd = open(filename, O_RDONLY, 0);
73 if (fd < 0)
74 return errno;
75 if (fstat(fd, &sb) != 0){
76 ret = errno;
77 goto out;
78 }
79 *buf = malloc(sb.st_size);
80 if (*buf == NULL) {
81 ret = ENOMEM;
82 goto out;
83 }
84 *size = sb.st_size;
85
86 sret = net_read(fd, *buf, *size);
87 if (sret < 0)
88 ret = errno;
89 else if (sret != *size) {
90 ret = EINVAL;
91 free(*buf);
92 *buf = NULL;
93 } else
94 ret = 0;
95
96 out:
97 close(fd);
98 return ret;
99 }