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
|
/*
* remhost.cc: a program to change the state of a compilation host.
*
* Copyright (C) 2005, 2006 Victor T. Norman
*
* 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.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "dmucs.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fstream>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <string>
#include <sstream>
#include <errno.h>
#include "COSMIC/HDR/sockets.h"
extern char **environ;
void usage(const char *prog);
bool debugMode = false;
int
main(int argc, char *argv[])
{
/*
* o Open a client socket to the server ip/port.
* o Send my IP address in a 'remove host' or 'add host' request, depending
* on the name of the executable.
* o Close the client socket.
*/
// TODO: need to take optional ip address as argument -- to remove / add
// host on a remote machine.
/*
* Process command-line arguments:
*
* -s <server>, --server <server>: the name of the server machine.
* -p <port>, --port <port>: the port number to send to (default: 6714).
* -D, --debug: debug mode (default: off)
*/
std::ostringstream serverName;
serverName << "@" << SERVER_MACH_NAME;
int serverPortNum = SERVER_PORT_NUM;
char *distingProp = NULL;
int nextarg = 1;
for (; nextarg < argc; nextarg++) {
if (strequ("-s", argv[nextarg]) || strequ("--server", argv[nextarg])) {
if (++nextarg >= argc) {
usage(argv[0]);
return -1;
}
serverName.seekp(1); // remove everything after the first "@".
serverName << argv[nextarg] << '\0';
} else if (strequ("-p", argv[nextarg]) ||
strequ("--port", argv[nextarg])) {
if (++nextarg >= argc) {
usage(argv[0]);
return -1;
}
serverPortNum = atoi(argv[nextarg]);
} else if (strequ("-t", argv[nextarg]) ||
strequ("--type", argv[nextarg])) {
if (++nextarg >= argc) {
usage(argv[0]);
return -1;
}
distingProp = argv[nextarg];
} else if (strequ("-D", argv[nextarg]) ||
strequ("--debug", argv[nextarg])) {
debugMode = true;
} else {
/* We are looking at the command to run, supposedly. */
break;
}
}
std::ostringstream clientPortStr;
clientPortStr << "c" << serverPortNum;
DMUCS_DEBUG((stderr, "doing Sopen with %s, %s\n",
serverName.str().c_str(), clientPortStr.str().c_str()));
Socket *client_sock = Sopen((char *) serverName.str().c_str(),
(char *) clientPortStr.str().c_str());
if (!client_sock) {
fprintf(stderr, "Could not open client: %s\n", strerror(errno));
return -1;
}
char hostname[256];
if (gethostname(hostname, 256) < 0) {
fprintf(stderr, "Could not get my hostname\n");
Sclose(client_sock);
return -1;
}
struct hostent *he = gethostbyname(hostname);
if (he == NULL) {
fprintf(stderr, "Could not get my hostname\n");
Sclose(client_sock);
return -1;
}
struct in_addr in;
memcpy(&in.s_addr, he->h_addr_list[0], sizeof(in.s_addr));
/*struct sockaddr sck;
socklen_t s = sizeof(sck);
getsockname(client_sock->skt, &sck, &s);
struct sockaddr_in *sin = (struct sockaddr_in *) &sck;*/
/* If the name of the program is "addhost", then send "up" to the
dmucs server. Otherwise, send "down". */
const char *op = (strstr(argv[0], "addhost") != NULL) ? "up" : "down";
std::ostringstream clientReqStr;
clientReqStr << "status " << inet_ntoa(in) << " " << op << " "
<< distingProp;
DMUCS_DEBUG((stderr, "Writing -->%s<-- to the server\n",
clientReqStr.str().c_str()));
Sputs((char *) clientReqStr.str().c_str(), client_sock);
Sclose(client_sock);
return 0;
}
void
usage(const char *prog)
{
fprintf(stderr, "Usage: %s [-s|--server <server>] [-p|--port <port>] "
"[-t|--type <str>] [-D|--debug] <command> [args] \n\n", prog);
}
|
