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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
Copyright (c) 1992,1996,1998.
The Regents of the University of California (Regents).
All Rights Reserved.
Permission to use, copy, modify, and distribute this software and its
documentation for educational, research, and not-for-profit purposes, without
fee and without a signed licensing agreement, is hereby granted, provided that
the above copyright notice, this paragraph and the following two paragraphs
appear in all copies, modifications, and distributions. Contact The Office of
Technology Licensing, UC Berkeley, 2150 Shattuck Avenue, Suite 510, Berkeley,
CA 94720-1620, (510) 643-7201, for commercial licensing opportunities.
Written by Adrian Freed, The Center for New Music and Audio Technologies,
University of California, Berkeley.
IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. THE SOFTWARE AND ACCOMPANYING
DOCUMENTATION, IF ANY, PROVIDED HEREUNDER IS PROVIDED "AS IS".
REGENTS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
ENHANCEMENTS, OR MODIFICATIONS.
*/
/* htmsocket.c
Adrian Freed
send parameters to htm servers by udp or UNIX protocol
Modified 6/6/96 by Matt Wright to understand symbolic host names
in addition to X.X.X.X addresses.
*/
#include <stdio.h>
#include <strings.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <netinet/in.h>
// #include <rpc/rpc.h> l-osc: sendOSC, Date: Fri, 06 Feb 2004 05:02:42 +1100
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/times.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <pwd.h>
#include <signal.h>
#include <grp.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/types.h>
#ifndef MACOSX
#include <sys/prctl.h>
#endif
#include <stdlib.h>
#define UNIXDG_PATH "/tmp/htm"
#define UNIXDG_TMP "/tmp/htm.XXXXXX"
#include "htmsocket.h"
typedef struct
{
float srate;
struct sockaddr_in serv_addr; /* udp socket */
struct sockaddr_un userv_addr; /* UNIX socket */
int sockfd; /* socket file descriptor */
int index, len,uservlen;
void *addr;
int id;
} desc;
/* open a socket for HTM communication to given host on given portnumber */
/* if host is 0 then UNIX protocol is used (i.e. local communication */
void *OpenHTMSocket(char *host, int portnumber)
{
int sockfd;
int oval = 1;
struct sockaddr_in cl_addr;
struct sockaddr_un ucl_addr;
desc *o;
o = malloc(sizeof(*o));
if(!o)
return 0;
if(!host)
{
// char *mkstemp(char *);
int clilen;
o->len = sizeof(ucl_addr);
/*
* Fill in the structure "userv_addr" with the address of the
* server that we want to send to.
*/
bzero((char *) &o->userv_addr, sizeof(o->userv_addr));
o->userv_addr.sun_family = AF_UNIX;
strcpy(o->userv_addr.sun_path, UNIXDG_PATH);
sprintf(o->userv_addr.sun_path+strlen(o->userv_addr.sun_path), "%d", portnumber);
o->uservlen = sizeof(o->userv_addr.sun_family) + strlen(o->userv_addr.sun_path);
o->addr = &(o->userv_addr);
/*
* Open a socket (a UNIX domain datagram socket).
*/
if ( (sockfd = socket(AF_UNIX, SOCK_DGRAM, 0)) >= 0)
{
/*
* Bind a local address for us.
* In the UNIX domain we have to choose our own name (that
* should be unique). We'll use mktemp() to create a unique
* pathname, based on our process id.
*/
bzero((char *) &ucl_addr, sizeof(ucl_addr)); /* zero out */
ucl_addr.sun_family = AF_UNIX;
strcpy(ucl_addr.sun_path, UNIXDG_TMP);
mkstemp(ucl_addr.sun_path);
clilen = sizeof(ucl_addr.sun_family) + strlen(ucl_addr.sun_path);
if (bind(sockfd, (struct sockaddr *) &ucl_addr, clilen) < 0)
{
perror("client: can't bind local address");
close(sockfd);
sockfd = -1;
}
}
else
perror("unable to make socket\n");
}else
{
/*
* Fill in the structure "serv_addr" with the address of the
* server that we want to send to.
*/
o->len = sizeof(cl_addr);
bzero((char *)&o->serv_addr, sizeof(o->serv_addr));
o->serv_addr.sin_family = AF_INET;
/* MW 6/6/96: Call gethostbyname() instead of inet_addr(),
so that host can be either an Internet host name (e.g.,
"les") or an Internet address in standard dot notation
(e.g., "128.32.122.13") */
{
struct hostent *hostsEntry;
unsigned long address;
hostsEntry = gethostbyname(host);
if (hostsEntry == NULL) {
fprintf(stderr, "Couldn't decipher host name \"%s\"\n",
host);
herror(NULL);
return 0;
}
address = *((unsigned long *) hostsEntry->h_addr_list[0]);
o->serv_addr.sin_addr.s_addr = address;
}
/* was: o->serv_addr.sin_addr.s_addr = inet_addr(host); */
/* End MW changes */
o->serv_addr.sin_port = htons(portnumber);
o->addr = &(o->serv_addr);
/*
* Open a socket (a UDP domain datagram socket).
*/
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) >= 0)
{
bzero((char *)&cl_addr, sizeof(cl_addr));
cl_addr.sin_family = AF_INET;
cl_addr.sin_addr.s_addr = htonl(INADDR_ANY);
cl_addr.sin_port = htons(0);
if(setsockopt(sockfd, SOL_SOCKET, SO_BROADCAST, &oval, sizeof(int)) == -1) {
perror("setsockopt");
}
if(bind(sockfd, (struct sockaddr *) &cl_addr, sizeof(cl_addr)) < 0)
{
perror("could not bind\n");
close(sockfd);
sockfd = -1;
}
}
else
{
perror("unable to make socket\n");
}
}
if(sockfd<0)
{
free(o); o = 0;
}
else
o->sockfd = sockfd;
return o;
}
#include <errno.h>
static bool sendudp(const struct sockaddr *sp, int sockfd,int length, int count, void *b)
{
int rcount;
if((rcount=sendto(sockfd, b, count, 0, sp, length)) != count)
{
/* printf("sockfd %d count %d rcount %dlength %d errno %d\n", sockfd,count,rcount,length,
errno); */
return FALSE;
}
return TRUE;
}
bool SendHTMSocket(void *htmsendhandle, int length_in_bytes, void *buffer)
{
desc *o = (desc *)htmsendhandle;
return sendudp(o->addr, o->sockfd, o->len, length_in_bytes, buffer);
}
void CloseHTMSocket(void *htmsendhandle)
{
desc *o = (desc *)htmsendhandle;
close(o->sockfd);
free(o);
}
|
