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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; | |
e88ba395 | 14 | for (i = 0; i < AIM_CONN_MAX; i++) { |
15 | aim_conn_close(&sess->conns[i]); | |
16 | } | |
9de3ca7e | 17 | } |
18 | ||
a25832e6 | 19 | struct aim_conn_t *aim_conn_getnext(struct aim_session_t *sess) |
9de3ca7e | 20 | { |
21 | int i; | |
22 | for (i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 23 | if (sess->conns[i].fd == -1) |
24 | return &(sess->conns[i]); | |
9de3ca7e | 25 | return NULL; |
26 | } | |
27 | ||
28 | void aim_conn_close(struct aim_conn_t *deadconn) | |
29 | { | |
30 | if (deadconn->fd >= 3) | |
31 | close(deadconn->fd); | |
32 | deadconn->fd = -1; | |
33 | deadconn->type = -1; | |
34 | deadconn->seqnum = 0; | |
35 | deadconn->lastactivity = 0; | |
36 | deadconn->forcedlatency = 0; | |
0252e8c0 | 37 | if (deadconn->handlerlist) |
38 | aim_clearhandlers(deadconn); | |
9de3ca7e | 39 | deadconn->handlerlist = NULL; |
0c20631f | 40 | if (deadconn->priv) |
41 | free(deadconn->priv); | |
42 | deadconn->priv = NULL; | |
e88ba395 | 43 | faim_mutex_init(&deadconn->active, NULL); |
df5a99fb | 44 | faim_mutex_init(&deadconn->seqnum_lock, NULL); |
9de3ca7e | 45 | } |
46 | ||
a25832e6 | 47 | struct aim_conn_t *aim_getconn_type(struct aim_session_t *sess, |
48 | int type) | |
9de3ca7e | 49 | { |
50 | int i; | |
51 | for (i=0; i<AIM_CONN_MAX; i++) | |
a25832e6 | 52 | if (sess->conns[i].type == type) |
53 | return &(sess->conns[i]); | |
9de3ca7e | 54 | return NULL; |
55 | } | |
56 | ||
57 | /* | |
58 | * aim_newconn(type, dest) | |
59 | * | |
60 | * Opens a new connection to the specified dest host of type type. | |
61 | * | |
62 | * TODO: fix for proxies | |
63 | * FIXME: Return errors in a more sane way. | |
64 | * | |
65 | */ | |
a25832e6 | 66 | struct aim_conn_t *aim_newconn(struct aim_session_t *sess, |
67 | int type, char *dest) | |
9de3ca7e | 68 | { |
69 | struct aim_conn_t *connstruct; | |
70 | int ret; | |
71 | struct sockaddr_in sa; | |
72 | struct hostent *hp; | |
73 | u_short port = FAIM_LOGIN_PORT; | |
a25832e6 | 74 | char *host = NULL; |
9de3ca7e | 75 | int i=0; |
76 | ||
e6b05d80 | 77 | if ((connstruct=aim_conn_getnext(sess))==NULL) |
9de3ca7e | 78 | return NULL; |
79 | ||
80 | connstruct->type = type; | |
81 | ||
e6b05d80 | 82 | if (!dest) { /* just allocate a struct */ |
83 | connstruct->fd = -1; | |
84 | connstruct->status = 0; | |
85 | return connstruct; | |
86 | } | |
87 | ||
9de3ca7e | 88 | /* |
89 | * As of 23 Jul 1999, AOL now sends the port number, preceded by a | |
90 | * colon, in the BOS redirect. This fatally breaks all previous | |
91 | * libfaims. Bad, bad AOL. | |
92 | * | |
93 | * We put this here to catch every case. | |
94 | * | |
95 | */ | |
96 | ||
e88ba395 | 97 | for(i=0;i<strlen(dest);i++) { |
98 | if (dest[i] == ':') { | |
99 | port = atoi(&(dest[i+1])); | |
100 | break; | |
9de3ca7e | 101 | } |
e88ba395 | 102 | } |
a25832e6 | 103 | host = (char *)malloc(i+1); |
104 | strncpy(host, dest, i); | |
9ba272ca | 105 | host[i] = '\0'; |
106 | ||
a25832e6 | 107 | hp = gethostbyname2(host, AF_INET); |
108 | free(host); | |
9de3ca7e | 109 | |
e88ba395 | 110 | if (hp == NULL) { |
111 | connstruct->status = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
112 | return connstruct; | |
113 | } | |
9de3ca7e | 114 | |
115 | memset(&sa.sin_zero, 0, 8); | |
116 | sa.sin_port = htons(port); | |
117 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
118 | sa.sin_family = hp->h_addrtype; | |
119 | ||
120 | connstruct->fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
121 | ret = connect(connstruct->fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)); | |
e88ba395 | 122 | if(ret < 0) { |
123 | connstruct->fd = -1; | |
124 | connstruct->status = (errno | AIM_CONN_STATUS_CONNERR); | |
125 | return connstruct; | |
126 | } | |
a25832e6 | 127 | |
9de3ca7e | 128 | return connstruct; |
129 | } | |
130 | ||
a25832e6 | 131 | int aim_conngetmaxfd(struct aim_session_t *sess) |
9de3ca7e | 132 | { |
133 | int i,j; | |
e88ba395 | 134 | |
135 | for (i=0,j=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 136 | if(sess->conns[i].fd > j) |
137 | j = sess->conns[i].fd; | |
9de3ca7e | 138 | return j; |
139 | } | |
140 | ||
a25832e6 | 141 | int aim_countconn(struct aim_session_t *sess) |
9de3ca7e | 142 | { |
143 | int i,cnt; | |
e88ba395 | 144 | |
145 | for (i=0,cnt=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 146 | if (sess->conns[i].fd > -1) |
9de3ca7e | 147 | cnt++; |
148 | return cnt; | |
149 | } | |
150 | ||
151 | /* | |
152 | * aim_select(timeout) | |
153 | * | |
154 | * Waits for a socket with data or for timeout, whichever comes first. | |
155 | * See select(2). | |
156 | * | |
b8d0da45 | 157 | * Return codes in *status: |
158 | * -1 error in select() (NULL returned) | |
159 | * 0 no events pending (NULL returned) | |
160 | * 1 outgoing data pending (NULL returned) | |
161 | * 2 incoming data pending (connection with pending data returned) | |
162 | * | |
9de3ca7e | 163 | */ |
a25832e6 | 164 | struct aim_conn_t *aim_select(struct aim_session_t *sess, |
b8d0da45 | 165 | struct timeval *timeout, int *status) |
9de3ca7e | 166 | { |
167 | fd_set fds; | |
9de3ca7e | 168 | int i; |
169 | ||
f1a5efe0 | 170 | if (aim_countconn(sess) <= 0) |
171 | return 0; | |
172 | ||
9de3ca7e | 173 | /* |
174 | * If we have data waiting to be sent, return immediatly | |
175 | */ | |
b8d0da45 | 176 | if (sess->queue_outgoing != NULL) { |
177 | *status = 1; | |
178 | return NULL; | |
179 | } | |
9de3ca7e | 180 | |
181 | FD_ZERO(&fds); | |
9de3ca7e | 182 | |
183 | for(i=0;i<AIM_CONN_MAX;i++) | |
a25832e6 | 184 | if (sess->conns[i].fd>-1) |
b8d0da45 | 185 | FD_SET(sess->conns[i].fd, &fds); |
9de3ca7e | 186 | |
b8d0da45 | 187 | if ((i = select(aim_conngetmaxfd(sess)+1, &fds, NULL, NULL, timeout))>=1) { |
188 | int j; | |
189 | for (j=0;j<AIM_CONN_MAX;j++) { | |
190 | if (sess->conns[j].fd > -1) { | |
191 | if ((FD_ISSET(sess->conns[j].fd, &fds))) { | |
192 | *status = 2; | |
193 | return &(sess->conns[j]); /* return the first waiting struct */ | |
9de3ca7e | 194 | } |
b8d0da45 | 195 | } |
196 | } | |
197 | /* should never get here */ | |
198 | } | |
199 | ||
200 | *status = i; /* may be 0 or -1 */ | |
201 | return NULL; /* no waiting or error, return */ | |
9de3ca7e | 202 | } |
203 | ||
204 | int aim_conn_isready(struct aim_conn_t *conn) | |
205 | { | |
206 | if (conn) | |
207 | return (conn->status & 0x0001); | |
208 | else | |
209 | return -1; | |
210 | } | |
211 | ||
212 | int aim_conn_setstatus(struct aim_conn_t *conn, int status) | |
213 | { | |
214 | if (conn) | |
215 | return (conn->status ^= status); | |
216 | else | |
217 | return -1; | |
218 | } | |
219 | ||
220 | int aim_conn_setlatency(struct aim_conn_t *conn, int newval) | |
221 | { | |
222 | if (!conn) | |
223 | return -1; | |
224 | ||
225 | conn->forcedlatency = newval; | |
226 | conn->lastactivity = 0; /* reset this just to make sure */ | |
227 | ||
228 | return 0; | |
229 | } | |
a25832e6 | 230 | |
231 | void aim_session_init(struct aim_session_t *sess) | |
232 | { | |
a25832e6 | 233 | if (!sess) |
234 | return; | |
235 | ||
0c20631f | 236 | memset(sess->logininfo.screen_name, 0x00, MAXSNLEN); |
a25832e6 | 237 | sess->logininfo.BOSIP = NULL; |
0c20631f | 238 | memset(sess->logininfo.cookie, 0x00, AIM_COOKIELEN); |
a25832e6 | 239 | sess->logininfo.email = NULL; |
240 | sess->logininfo.regstatus = 0x00; | |
7bed1692 | 241 | |
0252e8c0 | 242 | memset(sess->conns, 0, sizeof(struct aim_conn_t)*AIM_CONN_MAX); |
e88ba395 | 243 | aim_connrst(sess); |
244 | ||
a25832e6 | 245 | sess->queue_outgoing = NULL; |
246 | sess->queue_incoming = NULL; | |
0c20631f | 247 | sess->pendingjoin = NULL; |
a25832e6 | 248 | sess->outstanding_snacs = NULL; |
249 | sess->snac_nextid = 0x00000001; | |
250 | ||
e88ba395 | 251 | /* |
252 | * This must always be set. Default to the queue-based | |
253 | * version for back-compatibility. | |
254 | */ | |
255 | sess->tx_enqueue = &aim_tx_enqueue__queuebased; | |
256 | ||
a25832e6 | 257 | return; |
258 | } |