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
|
/* guestfish - the filesystem interactive shell
* Copyright (C) 2009-2011 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <inttypes.h>
#include "fish.h"
int
run_more (const char *cmd, size_t argc, char *argv[])
{
TMP_TEMPLATE_ON_STACK (filename);
char buf[256];
char *remote;
const char *pager;
int r, fd;
if (argc != 1) {
fprintf (stderr, _("use '%s filename' to page a file\n"), cmd);
return -1;
}
/* Choose a pager. */
if (STRCASEEQ (cmd, "less"))
pager = "less";
else {
pager = getenv ("PAGER");
if (pager == NULL)
pager = "more";
}
remote = argv[0];
/* Allow win:... prefix on remote. */
remote = win_prefix (remote);
if (remote == NULL)
return -1;
/* Download the file and write it to a temporary. */
fd = mkstemp (filename);
if (fd == -1) {
perror ("mkstemp");
free (remote);
return -1;
}
snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
if (guestfs_download (g, remote, buf) == -1) {
close (fd);
unlink (filename);
free (remote);
return -1;
}
if (close (fd) == -1) {
perror (filename);
unlink (filename);
free (remote);
return -1;
}
/* View it. */
/* XXX Safe? */
snprintf (buf, sizeof buf, "%s %s", pager, filename);
r = system (buf);
unlink (filename);
if (r != 0) {
perror (buf);
free (remote);
return -1;
}
free (remote);
return 0;
}
|
