2 * Copyright (c) 1995, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.2 1995-06-15 12:30:07 quinn
8 * Added @ as hostname alias for INADDR ANY.
10 * Revision 1.1 1995/06/14 09:58:20 quinn
11 * Renamed yazlib to comstack.
13 * Revision 1.15 1995/05/29 08:12:33 quinn
14 * Updates to aynch. operations.
16 * Revision 1.14 1995/05/16 09:37:31 quinn
19 * Revision 1.13 1995/05/16 08:51:19 quinn
20 * License, documentation, and memory fixes
22 * Revision 1.12 1995/05/02 08:53:24 quinn
23 * Trying in vain to fix comm with ISODE
25 * Revision 1.11 1995/04/21 16:32:08 quinn
26 * *** empty log message ***
28 * Revision 1.10 1995/03/27 08:36:14 quinn
29 * Some work on nonblocking operation in xmosi.c and rfct.c.
30 * Added protocol parameter to cs_create()
32 * Revision 1.9 1995/03/20 09:47:23 quinn
33 * Added server-side support to xmosi.c
34 * Fixed possible problems in rfct
37 * Revision 1.8 1995/03/16 13:29:30 quinn
38 * Beginning to add server-side functions
40 * Revision 1.7 1995/03/14 10:28:47 quinn
41 * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
43 * Revision 1.6 1995/03/09 15:22:43 quinn
44 * Fixed two bugs in get/rcv
46 * Revision 1.5 1995/03/07 16:29:47 quinn
49 * Revision 1.4 1995/03/07 10:26:56 quinn
50 * Initialized type field in the comstacks.
52 * Revision 1.3 1995/03/06 16:48:03 quinn
55 * Revision 1.2 1995/03/06 10:54:41 quinn
56 * Server-side functions (t_bind/t_listen/t_accept) seem to work ok, now.
57 * Nonblocking mode needs work (and testing!)
58 * Added makensap to replace function in mosiutil.c.
60 * Revision 1.1 1995/03/01 08:40:33 quinn
61 * First working version of rfct. Addressing needs work.
66 * Glue layer for Peter Furniss' xtimosi package.
74 #include <sys/types.h>
75 #include <sys/socket.h>
77 #include <netinet/in.h>
78 #include <arpa/inet.h>
85 int mosi_connect(COMSTACK h, void *address);
86 int mosi_get(COMSTACK h, char **buf, int *bufsize);
87 int mosi_put(COMSTACK h, char *buf, int size);
88 int mosi_more(COMSTACK h) { return 0; } /* not correct */
89 int mosi_close(COMSTACK h);
90 int mosi_rcvconnect(COMSTACK h);
91 int mosi_bind(COMSTACK h, void *address, int mode);
92 int mosi_listen(COMSTACK h, char *addrp, int *addrlen);
93 COMSTACK mosi_accept(COMSTACK h);
95 typedef struct mosi_state
97 struct t_info info; /* data returned by t_open */
99 int hasread; /* how many bytes read of current PDU */
100 int haswrit; /* how many bytes have we written */
103 static char *oidtostr(int *o)
105 static char buf[512];
110 sprintf(buf + strlen(buf), "%d", *o);
117 static int addopt(struct netbuf *optbuf, unsigned long level, unsigned long
118 name, enum oid_proto proto, enum oid_class class, enum oid_value value)
127 if (!(oid = oid_getoidbyent(&ent)))
130 if (addoidoption(optbuf, level, name, str) < 0)
135 COMSTACK mosi_type(int blocking, int protocol)
141 if (!(r = malloc(sizeof(*r))))
143 if (!(state = r->private = malloc(sizeof(*state))))
149 r->protocol = protocol;
152 r->blocking = blocking;
153 r->f_connect = mosi_connect;
156 r->f_close = mosi_close;
157 r->f_more = mosi_more;
158 r->f_rcvconnect = mosi_rcvconnect;
159 r->f_bind = mosi_bind;
160 r->f_listen = mosi_listen;
161 r->f_accept = mosi_accept;
165 if ((r->iofile = u_open(CO_MOSI_NAME, flags, &state->info)) < 0)
168 r->timeout = COMSTACK_DEFAULT_TIMEOUT;
173 int hex2oct(char *hex, char *oct)
178 while (sscanf(hex, "%2x", &val) == 1)
182 *((unsigned char*) oct++) = (unsigned char) val;
190 * addressing specific to our hack of OSI transport. A sockaddr_in wrapped
191 * up in a t_mosiaddr in a netbuf (on a stick).
193 struct netbuf *mosi_strtoaddr(const char *str)
195 struct netbuf *ret = malloc(sizeof(struct netbuf));
196 struct sockaddr_in *add = malloc(sizeof(struct sockaddr_in));
197 struct t_mosiaddr *mosiaddr = malloc(sizeof(struct t_mosiaddr));
199 char *p, *b, buf[512], *nsap;
200 short int port = 102;
201 unsigned long tmpadd;
204 assert(ret && add && mosiaddr);
206 mosiaddr->osi_ap_inv_id = NO_INVOKEID;
207 mosiaddr->osi_ae_inv_id = NO_INVOKEID;
209 mosiaddr->osi_apt_len = 0;
210 mosiaddr->osi_aeq_len = 0;
211 p = (char*)MOSI_PADDR(mosiaddr);
212 *(p++) = 0; /* No presentation selector */
214 *(p++) = 0; /* no session selector */
216 /* do we have a transport selector? */
218 if ((nsap = strchr(buf, '/')))
221 if ((*p = hex2oct(buf, p + 1)) < 0)
234 add->sin_family = AF_INET;
236 if ((b = strchr(buf, ':')))
241 add->sin_port = htons(port);
242 if (!strcmp("@", buf))
243 add->sin_addr.s_addr = INADDR_ANY;
244 else if ((hp = gethostbyname(buf)))
245 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list, sizeof(struct in_addr));
246 else if ((tmpadd = inet_addr(buf)) != 0)
247 memcpy(&add->sin_addr.s_addr, &tmpadd, sizeof(struct in_addr));
250 *(p++) = (char) sizeof(*add);
252 memcpy(p, add, sizeof(*add));
260 mosiaddr->osi_paddr_len = ll;
261 ret->buf = (char*)mosiaddr;
262 ret->len = ret->maxlen = 100 /* sizeof(*mosiaddr) */ ;
267 int mosi_connect(COMSTACK h, void *address)
269 struct netbuf *addr = address, *local;
270 struct t_call *snd, *rcv;
273 if (!(snd = (struct t_call *) u_alloc(h->iofile, T_CALL, T_ALL)))
275 if (!(rcv = (struct t_call *) u_alloc(h->iofile, T_CALL, T_ALL)))
279 if (addopt(&snd->opt, ISO_APCO, AP_CNTX_NAME, h->protocol, CLASS_APPCTX,
282 if (addopt(&snd->opt, ISO_APCO, AP_ABS_SYN, h->protocol, CLASS_ABSYN,
286 * We don't specify record formats yet.
288 * Xtimosi adds the oid for BER as transfer syntax automatically.
293 if (h->state == CS_UNBND)
295 local = mosi_strtoaddr(""); /* not good in long run */
296 memcpy(&bnd.addr, local, sizeof(*local));
297 if (u_bind(h->iofile, &bnd, 0) < 0)
301 memcpy(&snd->addr, addr, sizeof(*addr));
302 if (u_connect(h->iofile, snd, rcv) < 0)
304 if (t_errno == TNODATA)
311 int mosi_rcvconnect(COMSTACK h)
313 if (u_rcvconnect(h->iofile, 0) < 0)
315 if (t_errno == TNODATA)
322 int mosi_bind(COMSTACK h, void *address, int mode)
327 if (mode == CS_SERVER)
331 memcpy(&bnd.addr, address, sizeof(struct netbuf));
332 if ((res = u_bind(h->iofile, &bnd, 0)) < 0)
338 int mosi_listen(COMSTACK h, char *addp, int *addrlen)
341 mosi_state *st = h->private;
343 if (!(st->call = (struct t_call*) t_alloc(h->iofile, T_CALL_STR,
346 if ((res = u_listen(h->iofile, st->call)) < 0)
348 if (t_errno == TNODATA)
356 COMSTACK mosi_accept(COMSTACK h)
360 struct mosi_state *st = h->private, *ns;
363 if (h->state != CS_INCON)
365 h->errno = CSOUTSTATE;
368 if (!(new = malloc(sizeof(*new))))
371 if (!(new->private = ns = malloc(sizeof(*ns))))
376 if ((new->iofile = u_open_r(CO_MOSI_NAME, flags, &st->info, st->call)) < 0)
378 if (!(local = mosi_strtoaddr("")))
380 if (mosi_bind(new, local, CS_CLIENT) < 0) /* CS_CLIENT: qlen == 0 */
382 memcpy(&st->call->addr, local, sizeof(st->call->addr));
383 if (u_accept(h->iofile, new->iofile, st->call) < 0)
391 #define CS_MOSI_BUFCHUNK 4096
393 int mosi_get(COMSTACK h, char **buf, int *bufsize)
396 mosi_state *ct = h->private;
403 if (!(*buf = malloc(*bufsize = CS_MOSI_BUFCHUNK)))
406 else if (*bufsize - ct->hasread < CS_MOSI_BUFCHUNK)
407 if (!(*buf = realloc(*buf, *bufsize *= 2)))
410 if ((res = u_rcv(h->iofile, *buf + ct->hasread, CS_MOSI_BUFCHUNK,
413 if (t_errno == TNODATA)
419 while (flags & T_MORE);
421 /* all done. Reset hasread */
427 int mosi_put(COMSTACK h, char *buf, int size)
429 mosi_state *ct = h->private;
430 int res = u_snd(h->iofile, buf + ct->haswrit, size - ct->haswrit, 0);
432 if (res == size - ct->haswrit)
439 if (t_errno == TFLOW)
447 int mosi_close(COMSTACK h)