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Commit | Line | Data |
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9de3ca7e | 1 | |
2 | /* | |
3 | * | |
4 | * Various SNAC-related dodads... | |
5 | * | |
6 | * outstanding_snacs is a list of aim_snac_t structs. A SNAC should be added | |
7 | * whenever a new SNAC is sent and it should remain in the list until the | |
8 | * response for it has been receieved. | |
9 | * | |
10 | * First edition badly written by Adam Fritzler (afritz@delphid.ml.org) | |
11 | * Current edition nicely rewritten (it even works) by n (n@ml.org) | |
12 | * | |
13 | */ | |
14 | ||
a25832e6 | 15 | #include <faim/aim.h> |
9de3ca7e | 16 | |
a25832e6 | 17 | u_long aim_newsnac(struct aim_session_t *sess, |
18 | struct aim_snac_t *newsnac) | |
19 | { | |
20 | struct aim_snac_t *snac = NULL, *cur = NULL; | |
9de3ca7e | 21 | |
a25832e6 | 22 | if (!newsnac) |
23 | return 0; | |
9de3ca7e | 24 | |
a25832e6 | 25 | cur = sess->outstanding_snacs; |
9de3ca7e | 26 | |
a25832e6 | 27 | snac = calloc(1, sizeof(struct aim_snac_t)); |
28 | if (!snac) | |
29 | return 0; | |
30 | memcpy(snac, newsnac, sizeof(struct aim_snac_t)); | |
31 | snac->issuetime = time(&snac->issuetime); | |
32 | snac->next = NULL; | |
33 | ||
34 | if (cur == NULL) { | |
35 | sess->outstanding_snacs = snac; | |
36 | return(snac->id); | |
37 | } | |
38 | while (cur->next != NULL) | |
39 | cur = cur->next; | |
40 | cur->next = snac; | |
128a9903 | 41 | printf("faim: snac: added %08lx\n", snac->id); |
a25832e6 | 42 | return(snac->id); |
43 | } | |
9de3ca7e | 44 | |
a25832e6 | 45 | struct aim_snac_t *aim_remsnac(struct aim_session_t *sess, |
46 | u_long id) | |
47 | { | |
48 | struct aim_snac_t *cur; | |
49 | ||
50 | if (cur == NULL) | |
51 | return(NULL); | |
9de3ca7e | 52 | |
128a9903 | 53 | printf("faim: snac: searching for %08lx to remove\n", id); |
54 | ||
a25832e6 | 55 | cur = sess->outstanding_snacs; |
56 | ||
57 | if (cur->id == id) { | |
58 | sess->outstanding_snacs = cur->next; | |
59 | return(cur); | |
60 | } | |
61 | while (cur->next != NULL) { | |
62 | if (cur->next->id == id) { | |
63 | struct aim_snac_t *tmp = NULL; | |
64 | ||
65 | tmp = cur->next; | |
66 | cur->next = cur->next->next; | |
67 | return(tmp); | |
68 | } | |
69 | cur = cur->next; | |
70 | } | |
71 | return(NULL); | |
9de3ca7e | 72 | } |
73 | ||
74 | /* | |
75 | * This is for cleaning up old SNACs that either don't get replies or | |
76 | * a reply was never received for. Garabage collection. Plain and simple. | |
77 | * | |
78 | * maxage is the _minimum_ age in seconds to keep SNACs (though I don't know | |
79 | * why its called _max_age). | |
80 | * | |
81 | */ | |
a25832e6 | 82 | int aim_cleansnacs(struct aim_session_t *sess, |
83 | int maxage) | |
9de3ca7e | 84 | { |
a25832e6 | 85 | struct aim_snac_t *cur; |
9de3ca7e | 86 | struct aim_snac_t *remed = NULL; |
87 | time_t curtime; | |
a25832e6 | 88 | |
89 | cur = sess->outstanding_snacs; | |
9de3ca7e | 90 | |
91 | curtime = time(&curtime); | |
a25832e6 | 92 | |
9de3ca7e | 93 | while (cur) |
94 | { | |
95 | if ( (cur) && (((cur->issuetime) + maxage) < curtime)) | |
96 | { | |
128a9903 | 97 | #if 1/* DEBUG > 1*/ |
98 | printf("aimsnac: WARNING purged obsolete snac %08lx\n", cur->id); | |
9de3ca7e | 99 | #endif |
a25832e6 | 100 | remed = aim_remsnac(sess, cur->id); |
9de3ca7e | 101 | if (remed) |
102 | { | |
103 | if (remed->data) | |
104 | free(remed->data); | |
105 | free(remed); | |
106 | } | |
107 | } | |
108 | cur = cur->next; | |
109 | } | |
a25832e6 | 110 | |
9de3ca7e | 111 | return 0; |
112 | } | |
113 | ||
114 | int aim_putsnac(u_char *buf, int family, int subtype, int flags, u_long snacid) | |
115 | { | |
116 | int curbyte = 0; | |
117 | curbyte += aimutil_put16(buf+curbyte, (u_short)(family&0xffff)); | |
118 | curbyte += aimutil_put16(buf+curbyte, (u_short)(subtype&0xffff)); | |
119 | curbyte += aimutil_put16(buf+curbyte, (u_short)(flags&0xffff)); | |
120 | curbyte += aimutil_put32(buf+curbyte, snacid); | |
121 | return curbyte; | |
122 | } |