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
|
/*
* Copyright (C) 2009 Citrix Ltd.
* Author Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* 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 Lesser General Public License for more details.
*/
#include "libxl_osdeps.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <inttypes.h>
#include <xenctrl.h>
#include "libxl.h"
#include "libxl_utils.h"
#include "libxlutil.h"
#include "xl.h"
xentoollog_logger_stdiostream *logger;
int dryrun_only;
int autoballoon = 1;
char *lockfile;
char *default_vifscript = NULL;
static xentoollog_level minmsglevel = XTL_PROGRESS;
static void parse_global_config(const char *configfile,
const char *configfile_data,
int configfile_len)
{
long l;
XLU_Config *config;
int e;
const char *buf;
config = xlu_cfg_init(stderr, configfile);
if (!config) {
fprintf(stderr, "Failed to allocate for configuration\n");
exit(1);
}
e = xlu_cfg_readdata(config, configfile_data, configfile_len);
if (e) {
fprintf(stderr, "Failed to parse config file: %s\n", strerror(e));
exit(1);
}
if (!xlu_cfg_get_long (config, "autoballoon", &l))
autoballoon = l;
if (!xlu_cfg_get_string (config, "lockfile", &buf))
lockfile = strdup(buf);
else {
e = asprintf(&lockfile, "%s/xl", (char *)libxl_lock_dir_path());
if (e < 0) {
fprintf(stderr, "asprintf memory allocation failed\n");
exit(1);
}
}
if (!xlu_cfg_get_string (config, "vifscript", &buf))
default_vifscript = strdup(buf);
xlu_cfg_destroy(config);
}
int main(int argc, char **argv)
{
int opt = 0;
char *cmd = 0;
struct cmd_spec *cspec;
int ret;
char *config_file;
void *config_data = 0;
int config_len = 0;
while ((opt = getopt(argc, argv, "+vN")) >= 0) {
switch (opt) {
case 'v':
if (minmsglevel > 0) minmsglevel--;
break;
case 'N':
dryrun_only = 1;
break;
default:
fprintf(stderr, "unknown global option\n");
exit(2);
}
}
cmd = argv[optind];
if (!cmd) {
help(NULL);
exit(1);
}
opterr = 0;
logger = xtl_createlogger_stdiostream(stderr, minmsglevel, 0);
if (!logger) exit(1);
if (libxl_ctx_alloc(&ctx, LIBXL_VERSION, 0, (xentoollog_logger*)logger)) {
fprintf(stderr, "cannot init xl context\n");
exit(1);
}
/* Read global config file options */
ret = asprintf(&config_file, "%s/xl.conf", libxl_xen_config_dir_path());
if (ret < 0) {
fprintf(stderr, "memory allocation failed ret=%d, errno=%d\n", ret, errno);
exit(1);
}
ret = libxl_read_file_contents(ctx, config_file,
&config_data, &config_len);
if (ret)
fprintf(stderr, "Failed to read config file: %s: %s\n",
config_file, strerror(errno));
parse_global_config(config_file, config_data, config_len);
free(config_file);
/* Reset options for per-command use of getopt. */
argv += optind;
argc -= optind;
optind = 1;
cspec = cmdtable_lookup(cmd);
if (cspec) {
if (dryrun_only && !cspec->can_dryrun) {
fprintf(stderr, "command does not implement -N (dryrun) option\n");
ret = 1;
goto xit;
}
ret = cspec->cmd_impl(argc, argv);
} else if (!strcmp(cmd, "help")) {
help(argv[1]);
ret = 0;
} else {
fprintf(stderr, "command not implemented\n");
ret = 1;
}
xit:
libxl_ctx_free(ctx);
xtl_logger_destroy((xentoollog_logger*)logger);
return ret;
}
/*
* Local variables:
* mode: C
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
|
