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
|
/****************************************************************************
*
* Copyright (c) 2014 PX4 Development Team. All rights reserved.
*
* 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. Neither the name PX4 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/**
* @file dumpfile.c
*
* Dump file utility. Prints file size and contents in binary mode (don't replace LF with CR LF) to stdout.
*
* @author Anton Babushkin <anton.babushkin@me.com>
*/
#include <nuttx/config.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <termios.h>
#include <systemlib/err.h>
__EXPORT int dumpfile_main(int argc, char *argv[]);
int
dumpfile_main(int argc, char *argv[])
{
if (argc < 2) {
errx(1, "usage: dumpfile <filename>");
}
/* open input file */
FILE *f;
f = fopen(argv[1], "r");
if (f == NULL) {
printf("ERROR\n");
exit(1);
}
/* get file size */
fseek(f, 0L, SEEK_END);
int size = ftell(f);
fseek(f, 0L, SEEK_SET);
printf("OK %d\n", size);
/* configure stdout */
int out = fileno(stdout);
struct termios tc;
struct termios tc_old;
tcgetattr(out, &tc);
/* save old terminal attributes to restore it later on exit */
memcpy(&tc_old, &tc, sizeof(tc));
/* don't add CR on each LF*/
tc.c_oflag &= ~ONLCR;
if (tcsetattr(out, TCSANOW, &tc) < 0) {
warnx("ERROR setting stdout attributes");
exit(1);
}
char buf[512];
int nread;
/* dump file */
while ((nread = fread(buf, 1, sizeof(buf), f)) > 0) {
if (write(out, buf, nread) <= 0) {
warnx("error dumping file");
break;
}
}
fsync(out);
fclose(f);
/* restore old terminal attributes */
if (tcsetattr(out, TCSANOW, &tc_old) < 0) {
warnx("ERROR restoring stdout attributes");
exit(1);
}
return OK;
}
|
