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