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Commit | Line | Data |
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9de3ca7e | 1 | |
2 | /* | |
3 | * aim_conn.c | |
4 | * | |
5 | * Does all this gloriously nifty connection handling stuff... | |
6 | * | |
7 | */ | |
8 | ||
a25832e6 | 9 | #include <faim/aim.h> |
9de3ca7e | 10 | |
a25832e6 | 11 | void aim_connrst(struct aim_session_t *sess) |
9de3ca7e | 12 | { |
13 | int i; | |
14 | for (i = 0; i < AIM_CONN_MAX; i++) | |
15 | { | |
a25832e6 | 16 | sess->conns[i].fd = -1; |
17 | sess->conns[i].type = -1; | |
18 | sess->conns[i].status = 0; | |
19 | sess->conns[i].seqnum = 0; | |
20 | sess->conns[i].lastactivity = 0; | |
21 | sess->conns[i].forcedlatency = 0; | |
22 | aim_clearhandlers(&(sess->conns[i])); | |
23 | sess->conns[i].handlerlist = NULL; | |
9de3ca7e | 24 | } |
25 | ||
26 | } | |
27 | ||
a25832e6 | 28 | struct aim_conn_t *aim_conn_getnext(struct aim_session_t *sess) |
9de3ca7e | 29 | { |
30 | int i; | |
31 | for (i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 32 | if (sess->conns[i].fd == -1) |
33 | return &(sess->conns[i]); | |
9de3ca7e | 34 | return NULL; |
35 | } | |
36 | ||
37 | void aim_conn_close(struct aim_conn_t *deadconn) | |
38 | { | |
39 | if (deadconn->fd >= 3) | |
40 | close(deadconn->fd); | |
41 | deadconn->fd = -1; | |
42 | deadconn->type = -1; | |
43 | deadconn->seqnum = 0; | |
44 | deadconn->lastactivity = 0; | |
45 | deadconn->forcedlatency = 0; | |
46 | aim_clearhandlers(deadconn); | |
47 | deadconn->handlerlist = NULL; | |
0c20631f | 48 | if (deadconn->priv) |
49 | free(deadconn->priv); | |
50 | deadconn->priv = NULL; | |
9de3ca7e | 51 | } |
52 | ||
a25832e6 | 53 | struct aim_conn_t *aim_getconn_type(struct aim_session_t *sess, |
54 | int type) | |
9de3ca7e | 55 | { |
56 | int i; | |
57 | for (i=0; i<AIM_CONN_MAX; i++) | |
a25832e6 | 58 | if (sess->conns[i].type == type) |
59 | return &(sess->conns[i]); | |
9de3ca7e | 60 | return NULL; |
61 | } | |
62 | ||
63 | /* | |
64 | * aim_newconn(type, dest) | |
65 | * | |
66 | * Opens a new connection to the specified dest host of type type. | |
67 | * | |
68 | * TODO: fix for proxies | |
69 | * FIXME: Return errors in a more sane way. | |
70 | * | |
71 | */ | |
a25832e6 | 72 | struct aim_conn_t *aim_newconn(struct aim_session_t *sess, |
73 | int type, char *dest) | |
9de3ca7e | 74 | { |
75 | struct aim_conn_t *connstruct; | |
76 | int ret; | |
77 | struct sockaddr_in sa; | |
78 | struct hostent *hp; | |
79 | u_short port = FAIM_LOGIN_PORT; | |
a25832e6 | 80 | char *host = NULL; |
9de3ca7e | 81 | int i=0; |
82 | ||
e6b05d80 | 83 | if ((connstruct=aim_conn_getnext(sess))==NULL) |
9de3ca7e | 84 | return NULL; |
85 | ||
86 | connstruct->type = type; | |
87 | ||
e6b05d80 | 88 | if (!dest) { /* just allocate a struct */ |
89 | connstruct->fd = -1; | |
90 | connstruct->status = 0; | |
91 | return connstruct; | |
92 | } | |
93 | ||
9de3ca7e | 94 | /* |
95 | * As of 23 Jul 1999, AOL now sends the port number, preceded by a | |
96 | * colon, in the BOS redirect. This fatally breaks all previous | |
97 | * libfaims. Bad, bad AOL. | |
98 | * | |
99 | * We put this here to catch every case. | |
100 | * | |
101 | */ | |
102 | ||
a25832e6 | 103 | for(i=0;i<strlen(dest);i++) |
104 | { | |
105 | if (dest[i] == ':') { | |
106 | port = atoi(&(dest[i+1])); | |
107 | break; | |
108 | } | |
9de3ca7e | 109 | } |
a25832e6 | 110 | host = (char *)malloc(i+1); |
111 | strncpy(host, dest, i); | |
9ba272ca | 112 | host[i] = '\0'; |
113 | ||
a25832e6 | 114 | hp = gethostbyname2(host, AF_INET); |
115 | free(host); | |
9de3ca7e | 116 | |
9de3ca7e | 117 | if (hp == NULL) |
118 | { | |
119 | connstruct->status = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
120 | return connstruct; | |
121 | } | |
122 | ||
123 | memset(&sa.sin_zero, 0, 8); | |
124 | sa.sin_port = htons(port); | |
125 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
126 | sa.sin_family = hp->h_addrtype; | |
127 | ||
128 | connstruct->fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
129 | ret = connect(connstruct->fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)); | |
130 | if( ret < 0) | |
131 | { | |
132 | connstruct->fd = -1; | |
133 | connstruct->status = (errno | AIM_CONN_STATUS_CONNERR); | |
134 | return connstruct; | |
135 | } | |
a25832e6 | 136 | |
9de3ca7e | 137 | return connstruct; |
138 | } | |
139 | ||
a25832e6 | 140 | int aim_conngetmaxfd(struct aim_session_t *sess) |
9de3ca7e | 141 | { |
142 | int i,j; | |
143 | j=0; | |
144 | for (i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 145 | if(sess->conns[i].fd > j) |
146 | j = sess->conns[i].fd; | |
9de3ca7e | 147 | return j; |
148 | } | |
149 | ||
a25832e6 | 150 | int aim_countconn(struct aim_session_t *sess) |
9de3ca7e | 151 | { |
152 | int i,cnt; | |
153 | cnt = 0; | |
154 | for (i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 155 | if (sess->conns[i].fd > -1) |
9de3ca7e | 156 | cnt++; |
157 | return cnt; | |
158 | } | |
159 | ||
160 | /* | |
161 | * aim_select(timeout) | |
162 | * | |
163 | * Waits for a socket with data or for timeout, whichever comes first. | |
164 | * See select(2). | |
165 | * | |
b8d0da45 | 166 | * Return codes in *status: |
167 | * -1 error in select() (NULL returned) | |
168 | * 0 no events pending (NULL returned) | |
169 | * 1 outgoing data pending (NULL returned) | |
170 | * 2 incoming data pending (connection with pending data returned) | |
171 | * | |
9de3ca7e | 172 | */ |
a25832e6 | 173 | struct aim_conn_t *aim_select(struct aim_session_t *sess, |
b8d0da45 | 174 | struct timeval *timeout, int *status) |
9de3ca7e | 175 | { |
176 | fd_set fds; | |
9de3ca7e | 177 | int i; |
178 | ||
a25832e6 | 179 | if (aim_countconn(sess) <= 0) |
9de3ca7e | 180 | return 0; |
181 | ||
182 | /* | |
183 | * If we have data waiting to be sent, return immediatly | |
184 | */ | |
b8d0da45 | 185 | if (sess->queue_outgoing != NULL) { |
186 | *status = 1; | |
187 | return NULL; | |
188 | } | |
9de3ca7e | 189 | |
190 | FD_ZERO(&fds); | |
9de3ca7e | 191 | |
192 | for(i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 193 | if (sess->conns[i].fd>-1) |
b8d0da45 | 194 | FD_SET(sess->conns[i].fd, &fds); |
9de3ca7e | 195 | |
b8d0da45 | 196 | if ((i = select(aim_conngetmaxfd(sess)+1, &fds, NULL, NULL, timeout))>=1) { |
197 | int j; | |
198 | for (j=0;j<AIM_CONN_MAX;j++) { | |
199 | if (sess->conns[j].fd > -1) { | |
200 | if ((FD_ISSET(sess->conns[j].fd, &fds))) { | |
201 | *status = 2; | |
202 | return &(sess->conns[j]); /* return the first waiting struct */ | |
9de3ca7e | 203 | } |
b8d0da45 | 204 | } |
205 | } | |
206 | /* should never get here */ | |
207 | } | |
208 | ||
209 | *status = i; /* may be 0 or -1 */ | |
210 | return NULL; /* no waiting or error, return */ | |
9de3ca7e | 211 | } |
212 | ||
213 | int aim_conn_isready(struct aim_conn_t *conn) | |
214 | { | |
215 | if (conn) | |
216 | return (conn->status & 0x0001); | |
217 | else | |
218 | return -1; | |
219 | } | |
220 | ||
221 | int aim_conn_setstatus(struct aim_conn_t *conn, int status) | |
222 | { | |
223 | if (conn) | |
224 | return (conn->status ^= status); | |
225 | else | |
226 | return -1; | |
227 | } | |
228 | ||
229 | int aim_conn_setlatency(struct aim_conn_t *conn, int newval) | |
230 | { | |
231 | if (!conn) | |
232 | return -1; | |
233 | ||
234 | conn->forcedlatency = newval; | |
235 | conn->lastactivity = 0; /* reset this just to make sure */ | |
236 | ||
237 | return 0; | |
238 | } | |
a25832e6 | 239 | |
240 | void aim_session_init(struct aim_session_t *sess) | |
241 | { | |
242 | int i; | |
243 | ||
244 | if (!sess) | |
245 | return; | |
246 | ||
0c20631f | 247 | memset(sess->logininfo.screen_name, 0x00, MAXSNLEN); |
a25832e6 | 248 | sess->logininfo.BOSIP = NULL; |
0c20631f | 249 | memset(sess->logininfo.cookie, 0x00, AIM_COOKIELEN); |
a25832e6 | 250 | sess->logininfo.email = NULL; |
251 | sess->logininfo.regstatus = 0x00; | |
7bed1692 | 252 | |
a25832e6 | 253 | for (i = 0; i < AIM_CONN_MAX; i++) |
254 | { | |
255 | sess->conns[i].fd = -1; | |
256 | sess->conns[i].type = -1; | |
257 | sess->conns[i].status = 0; | |
258 | sess->conns[i].seqnum = 0; | |
259 | sess->conns[i].lastactivity = 0; | |
260 | sess->conns[i].forcedlatency = 0; | |
261 | sess->conns[i].handlerlist = NULL; | |
0c20631f | 262 | sess->conns[i].priv = NULL; |
a25832e6 | 263 | } |
264 | ||
265 | sess->queue_outgoing = NULL; | |
266 | sess->queue_incoming = NULL; | |
0c20631f | 267 | sess->pendingjoin = NULL; |
a25832e6 | 268 | sess->outstanding_snacs = NULL; |
269 | sess->snac_nextid = 0x00000001; | |
270 | ||
271 | return; | |
272 | } |