[5e53c4a] | 1 | |
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| 2 | #define FAIM_INTERNAL |
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| 3 | #include <aim.h> |
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| 4 | |
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| 5 | static aim_tlv_t *createtlv(void) |
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| 6 | { |
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| 7 | aim_tlv_t *newtlv; |
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| 8 | |
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| 9 | if (!(newtlv = (aim_tlv_t *)malloc(sizeof(aim_tlv_t)))) |
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| 10 | return NULL; |
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| 11 | memset(newtlv, 0, sizeof(aim_tlv_t)); |
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| 12 | |
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| 13 | return newtlv; |
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| 14 | } |
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| 15 | |
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| 16 | static void freetlv(aim_tlv_t **oldtlv) |
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| 17 | { |
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| 18 | |
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| 19 | if (!oldtlv || !*oldtlv) |
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| 20 | return; |
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| 21 | |
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| 22 | free((*oldtlv)->value); |
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| 23 | free(*oldtlv); |
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| 24 | *oldtlv = NULL; |
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| 25 | |
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| 26 | return; |
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| 27 | } |
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| 28 | |
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| 29 | /** |
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| 30 | * aim_readtlvchain - Read a TLV chain from a buffer. |
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[862371b] | 31 | * @param bs Input bstream |
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[5e53c4a] | 32 | * |
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| 33 | * Reads and parses a series of TLV patterns from a data buffer; the |
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| 34 | * returned structure is manipulatable with the rest of the TLV |
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| 35 | * routines. When done with a TLV chain, aim_freetlvchain() should |
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| 36 | * be called to free the dynamic substructures. |
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| 37 | * |
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| 38 | * XXX There should be a flag setable here to have the tlvlist contain |
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| 39 | * bstream references, so that at least the ->value portion of each |
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| 40 | * element doesn't need to be malloc/memcpy'd. This could prove to be |
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| 41 | * just as effecient as the in-place TLV parsing used in a couple places |
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| 42 | * in libfaim. |
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| 43 | * |
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| 44 | */ |
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| 45 | faim_internal aim_tlvlist_t *aim_readtlvchain(aim_bstream_t *bs) |
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| 46 | { |
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| 47 | aim_tlvlist_t *list = NULL, *cur; |
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[862371b] | 48 | |
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[5e53c4a] | 49 | while (aim_bstream_empty(bs) > 0) { |
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| 50 | fu16_t type, length; |
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| 51 | |
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| 52 | type = aimbs_get16(bs); |
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| 53 | length = aimbs_get16(bs); |
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| 54 | |
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| 55 | #if 0 /* temporarily disabled until I know if they're still doing it or not */ |
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| 56 | /* |
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| 57 | * Okay, so now AOL has decided that any TLV of |
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| 58 | * type 0x0013 can only be two bytes, despite |
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| 59 | * what the actual given length is. So here |
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| 60 | * we dump any invalid TLVs of that sort. Hopefully |
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| 61 | * theres no special cases to this special case. |
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| 62 | * - mid (30jun2000) |
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| 63 | */ |
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| 64 | if ((type == 0x0013) && (length != 0x0002)) |
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| 65 | length = 0x0002; |
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| 66 | #else |
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| 67 | if (0) |
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| 68 | ; |
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| 69 | #endif |
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| 70 | else { |
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| 71 | |
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[862371b] | 72 | if (length > aim_bstream_empty(bs)) { |
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| 73 | aim_freetlvchain(&list); |
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| 74 | return NULL; |
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| 75 | } |
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[5e53c4a] | 76 | |
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| 77 | cur = (aim_tlvlist_t *)malloc(sizeof(aim_tlvlist_t)); |
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[862371b] | 78 | if (!cur) { |
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| 79 | aim_freetlvchain(&list); |
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| 80 | return NULL; |
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| 81 | } |
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[5e53c4a] | 82 | |
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| 83 | memset(cur, 0, sizeof(aim_tlvlist_t)); |
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| 84 | |
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[862371b] | 85 | cur->tlv = createtlv(); |
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[5e53c4a] | 86 | if (!cur->tlv) { |
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| 87 | free(cur); |
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[862371b] | 88 | aim_freetlvchain(&list); |
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| 89 | return NULL; |
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[5e53c4a] | 90 | } |
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| 91 | cur->tlv->type = type; |
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| 92 | if ((cur->tlv->length = length)) { |
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| 93 | cur->tlv->value = aimbs_getraw(bs, length); |
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| 94 | if (!cur->tlv->value) { |
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| 95 | freetlv(&cur->tlv); |
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| 96 | free(cur); |
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[862371b] | 97 | aim_freetlvchain(&list); |
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| 98 | return NULL; |
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[5e53c4a] | 99 | } |
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| 100 | } |
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| 101 | |
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| 102 | cur->next = list; |
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| 103 | list = cur; |
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| 104 | } |
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| 105 | } |
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| 106 | |
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| 107 | return list; |
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[862371b] | 108 | } |
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[5e53c4a] | 109 | |
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[862371b] | 110 | /** |
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| 111 | * aim_readtlvchain_num - Read a TLV chain from a buffer. |
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| 112 | * @param bs Input bstream |
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| 113 | * @param num The max number of TLVs that will be read, or -1 if unlimited. |
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| 114 | * There are a number of places where you want to read in a tlvchain, |
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| 115 | * but the chain is not at the end of the SNAC, and the chain is |
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| 116 | * preceeded by the number of TLVs. So you can limit that. |
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| 117 | * |
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| 118 | * Reads and parses a series of TLV patterns from a data buffer; the |
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| 119 | * returned structure is manipulatable with the rest of the TLV |
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| 120 | * routines. When done with a TLV chain, aim_freetlvchain() should |
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| 121 | * be called to free the dynamic substructures. |
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| 122 | * |
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| 123 | * XXX There should be a flag setable here to have the tlvlist contain |
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| 124 | * bstream references, so that at least the ->value portion of each |
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| 125 | * element doesn't need to be malloc/memcpy'd. This could prove to be |
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| 126 | * just as effecient as the in-place TLV parsing used in a couple places |
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| 127 | * in libfaim. |
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| 128 | * |
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| 129 | */ |
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| 130 | faim_internal aim_tlvlist_t *aim_readtlvchain_num(aim_bstream_t *bs, fu16_t num) |
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| 131 | { |
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| 132 | aim_tlvlist_t *list = NULL, *cur; |
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| 133 | |
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| 134 | while ((aim_bstream_empty(bs) > 0) && (num != 0)) { |
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| 135 | fu16_t type, length; |
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| 136 | |
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| 137 | type = aimbs_get16(bs); |
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| 138 | length = aimbs_get16(bs); |
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| 139 | |
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| 140 | if (length > aim_bstream_empty(bs)) { |
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| 141 | aim_freetlvchain(&list); |
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| 142 | return NULL; |
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| 143 | } |
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| 144 | |
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| 145 | cur = (aim_tlvlist_t *)malloc(sizeof(aim_tlvlist_t)); |
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| 146 | if (!cur) { |
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| 147 | aim_freetlvchain(&list); |
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| 148 | return NULL; |
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| 149 | } |
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| 150 | |
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| 151 | memset(cur, 0, sizeof(aim_tlvlist_t)); |
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| 152 | |
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| 153 | cur->tlv = createtlv(); |
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| 154 | if (!cur->tlv) { |
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| 155 | free(cur); |
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| 156 | aim_freetlvchain(&list); |
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| 157 | return NULL; |
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| 158 | } |
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| 159 | cur->tlv->type = type; |
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| 160 | if ((cur->tlv->length = length)) { |
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| 161 | cur->tlv->value = aimbs_getraw(bs, length); |
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| 162 | if (!cur->tlv->value) { |
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| 163 | freetlv(&cur->tlv); |
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| 164 | free(cur); |
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| 165 | aim_freetlvchain(&list); |
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| 166 | return NULL; |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | num--; |
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| 171 | cur->next = list; |
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| 172 | list = cur; |
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| 173 | } |
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| 174 | |
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| 175 | return list; |
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[5e53c4a] | 176 | } |
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| 177 | |
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| 178 | /** |
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| 179 | * aim_freetlvchain - Free a TLV chain structure |
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| 180 | * @list: Chain to be freed |
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| 181 | * |
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| 182 | * Walks the list of TLVs in the passed TLV chain and |
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| 183 | * frees each one. Note that any references to this data |
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| 184 | * should be removed before calling this. |
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| 185 | * |
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| 186 | */ |
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| 187 | faim_internal void aim_freetlvchain(aim_tlvlist_t **list) |
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| 188 | { |
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| 189 | aim_tlvlist_t *cur; |
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| 190 | |
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| 191 | if (!list || !*list) |
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| 192 | return; |
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| 193 | |
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| 194 | for (cur = *list; cur; ) { |
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| 195 | aim_tlvlist_t *tmp; |
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| 196 | |
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| 197 | freetlv(&cur->tlv); |
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| 198 | |
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| 199 | tmp = cur->next; |
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| 200 | free(cur); |
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| 201 | cur = tmp; |
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| 202 | } |
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| 203 | |
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| 204 | list = NULL; |
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| 205 | |
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| 206 | return; |
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| 207 | } |
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| 208 | |
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| 209 | /** |
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| 210 | * aim_counttlvchain - Count the number of TLVs in a chain |
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| 211 | * @list: Chain to be counted |
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| 212 | * |
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| 213 | * Returns the number of TLVs stored in the passed chain. |
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| 214 | * |
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| 215 | */ |
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| 216 | faim_internal int aim_counttlvchain(aim_tlvlist_t **list) |
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| 217 | { |
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| 218 | aim_tlvlist_t *cur; |
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| 219 | int count; |
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| 220 | |
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| 221 | if (!list || !*list) |
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| 222 | return 0; |
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| 223 | |
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| 224 | for (cur = *list, count = 0; cur; cur = cur->next) |
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| 225 | count++; |
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| 226 | |
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| 227 | return count; |
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| 228 | } |
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| 229 | |
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| 230 | /** |
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| 231 | * aim_sizetlvchain - Count the number of bytes in a TLV chain |
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| 232 | * @list: Chain to be sized |
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| 233 | * |
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| 234 | * Returns the number of bytes that would be needed to |
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| 235 | * write the passed TLV chain to a data buffer. |
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| 236 | * |
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| 237 | */ |
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| 238 | faim_internal int aim_sizetlvchain(aim_tlvlist_t **list) |
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| 239 | { |
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| 240 | aim_tlvlist_t *cur; |
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| 241 | int size; |
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| 242 | |
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| 243 | if (!list || !*list) |
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| 244 | return 0; |
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| 245 | |
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| 246 | for (cur = *list, size = 0; cur; cur = cur->next) |
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| 247 | size += (4 + cur->tlv->length); |
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| 248 | |
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| 249 | return size; |
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| 250 | } |
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| 251 | |
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| 252 | /** |
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[862371b] | 253 | * aim_addtlvtochain_raw - Add a string to a TLV chain |
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[5e53c4a] | 254 | * @list: Desination chain (%NULL pointer if empty) |
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[862371b] | 255 | * @t: TLV type |
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| 256 | * @l: Length of string to add (not including %NULL) |
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| 257 | * @v: String to add |
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[5e53c4a] | 258 | * |
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| 259 | * Adds the passed string as a TLV element of the passed type |
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| 260 | * to the TLV chain. |
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| 261 | * |
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| 262 | */ |
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| 263 | faim_internal int aim_addtlvtochain_raw(aim_tlvlist_t **list, const fu16_t t, const fu16_t l, const fu8_t *v) |
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| 264 | { |
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| 265 | aim_tlvlist_t *newtlv, *cur; |
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| 266 | |
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| 267 | if (!list) |
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| 268 | return 0; |
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| 269 | |
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| 270 | if (!(newtlv = (aim_tlvlist_t *)malloc(sizeof(aim_tlvlist_t)))) |
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| 271 | return 0; |
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| 272 | memset(newtlv, 0x00, sizeof(aim_tlvlist_t)); |
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| 273 | |
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| 274 | if (!(newtlv->tlv = createtlv())) { |
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| 275 | free(newtlv); |
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| 276 | return 0; |
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| 277 | } |
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| 278 | newtlv->tlv->type = t; |
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| 279 | if ((newtlv->tlv->length = l)) { |
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| 280 | newtlv->tlv->value = (fu8_t *)malloc(newtlv->tlv->length); |
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| 281 | memcpy(newtlv->tlv->value, v, newtlv->tlv->length); |
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| 282 | } |
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| 283 | |
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| 284 | if (!*list) |
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| 285 | *list = newtlv; |
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| 286 | else { |
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| 287 | for(cur = *list; cur->next; cur = cur->next) |
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| 288 | ; |
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| 289 | cur->next = newtlv; |
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| 290 | } |
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| 291 | |
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| 292 | return newtlv->tlv->length; |
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| 293 | } |
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| 294 | |
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| 295 | /** |
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| 296 | * aim_addtlvtochain8 - Add a 8bit integer to a TLV chain |
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| 297 | * @list: Destination chain |
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| 298 | * @type: TLV type to add |
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| 299 | * @val: Value to add |
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| 300 | * |
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| 301 | * Adds a one-byte unsigned integer to a TLV chain. |
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| 302 | * |
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| 303 | */ |
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| 304 | faim_internal int aim_addtlvtochain8(aim_tlvlist_t **list, const fu16_t t, const fu8_t v) |
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| 305 | { |
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| 306 | fu8_t v8[1]; |
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| 307 | |
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| 308 | aimutil_put8(v8, v); |
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| 309 | |
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| 310 | return aim_addtlvtochain_raw(list, t, 1, v8); |
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| 311 | } |
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| 312 | |
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| 313 | /** |
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| 314 | * aim_addtlvtochain16 - Add a 16bit integer to a TLV chain |
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| 315 | * @list: Destination chain |
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[862371b] | 316 | * @t: TLV type to add |
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| 317 | * @v: Value to add |
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[5e53c4a] | 318 | * |
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| 319 | * Adds a two-byte unsigned integer to a TLV chain. |
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| 320 | * |
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| 321 | */ |
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| 322 | faim_internal int aim_addtlvtochain16(aim_tlvlist_t **list, const fu16_t t, const fu16_t v) |
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| 323 | { |
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| 324 | fu8_t v16[2]; |
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| 325 | |
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| 326 | aimutil_put16(v16, v); |
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| 327 | |
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| 328 | return aim_addtlvtochain_raw(list, t, 2, v16); |
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| 329 | } |
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| 330 | |
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| 331 | /** |
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| 332 | * aim_addtlvtochain32 - Add a 32bit integer to a TLV chain |
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| 333 | * @list: Destination chain |
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| 334 | * @type: TLV type to add |
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| 335 | * @val: Value to add |
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| 336 | * |
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| 337 | * Adds a four-byte unsigned integer to a TLV chain. |
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| 338 | * |
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| 339 | */ |
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| 340 | faim_internal int aim_addtlvtochain32(aim_tlvlist_t **list, const fu16_t t, const fu32_t v) |
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| 341 | { |
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| 342 | fu8_t v32[4]; |
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| 343 | |
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| 344 | aimutil_put32(v32, v); |
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| 345 | |
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| 346 | return aim_addtlvtochain_raw(list, t, 4, v32); |
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| 347 | } |
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| 348 | |
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| 349 | /** |
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| 350 | * aim_addtlvtochain_caps - Add a capability block to a TLV chain |
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| 351 | * @list: Destination chain |
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| 352 | * @type: TLV type to add |
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| 353 | * @caps: Bitfield of capability flags to send |
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| 354 | * |
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| 355 | * Adds a block of capability blocks to a TLV chain. The bitfield |
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| 356 | * passed in should be a bitwise %OR of any of the %AIM_CAPS constants: |
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| 357 | * |
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| 358 | * %AIM_CAPS_BUDDYICON Supports Buddy Icons |
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| 359 | * |
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| 360 | * %AIM_CAPS_VOICE Supports Voice Chat |
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| 361 | * |
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| 362 | * %AIM_CAPS_IMIMAGE Supports DirectIM/IMImage |
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| 363 | * |
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| 364 | * %AIM_CAPS_CHAT Supports Chat |
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| 365 | * |
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| 366 | * %AIM_CAPS_GETFILE Supports Get File functions |
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| 367 | * |
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| 368 | * %AIM_CAPS_SENDFILE Supports Send File functions |
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| 369 | * |
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| 370 | */ |
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| 371 | faim_internal int aim_addtlvtochain_caps(aim_tlvlist_t **list, const fu16_t t, const fu32_t caps) |
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| 372 | { |
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| 373 | fu8_t buf[16*16]; /* XXX icky fixed length buffer */ |
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| 374 | aim_bstream_t bs; |
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| 375 | |
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| 376 | if (!caps) |
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| 377 | return 0; /* nothing there anyway */ |
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| 378 | |
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| 379 | aim_bstream_init(&bs, buf, sizeof(buf)); |
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| 380 | |
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| 381 | aim_putcap(&bs, caps); |
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| 382 | |
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| 383 | return aim_addtlvtochain_raw(list, t, aim_bstream_curpos(&bs), buf); |
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| 384 | } |
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| 385 | |
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| 386 | faim_internal int aim_addtlvtochain_userinfo(aim_tlvlist_t **list, fu16_t type, aim_userinfo_t *ui) |
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| 387 | { |
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| 388 | fu8_t buf[1024]; /* bleh */ |
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| 389 | aim_bstream_t bs; |
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| 390 | |
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| 391 | aim_bstream_init(&bs, buf, sizeof(buf)); |
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| 392 | |
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| 393 | aim_putuserinfo(&bs, ui); |
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| 394 | |
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| 395 | return aim_addtlvtochain_raw(list, type, aim_bstream_curpos(&bs), buf); |
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| 396 | } |
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| 397 | |
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| 398 | /** |
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| 399 | * aim_addtlvtochain_noval - Add a blank TLV to a TLV chain |
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| 400 | * @list: Destination chain |
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| 401 | * @type: TLV type to add |
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| 402 | * |
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| 403 | * Adds a TLV with a zero length to a TLV chain. |
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| 404 | * |
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| 405 | */ |
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| 406 | faim_internal int aim_addtlvtochain_noval(aim_tlvlist_t **list, const fu16_t t) |
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| 407 | { |
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| 408 | return aim_addtlvtochain_raw(list, t, 0, NULL); |
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| 409 | } |
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| 410 | |
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| 411 | /* |
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| 412 | * Note that the inner TLV chain will not be modifiable as a tlvchain once |
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| 413 | * it is written using this. Or rather, it can be, but updates won't be |
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| 414 | * made to this. |
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| 415 | * |
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| 416 | * XXX should probably support sublists for real. |
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| 417 | * |
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| 418 | * This is so neat. |
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| 419 | * |
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| 420 | */ |
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| 421 | faim_internal int aim_addtlvtochain_frozentlvlist(aim_tlvlist_t **list, fu16_t type, aim_tlvlist_t **tl) |
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| 422 | { |
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| 423 | fu8_t *buf; |
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| 424 | int buflen; |
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| 425 | aim_bstream_t bs; |
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| 426 | |
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| 427 | buflen = aim_sizetlvchain(tl); |
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| 428 | |
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| 429 | if (buflen <= 0) |
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| 430 | return 0; |
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| 431 | |
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| 432 | if (!(buf = malloc(buflen))) |
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| 433 | return 0; |
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| 434 | |
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| 435 | aim_bstream_init(&bs, buf, buflen); |
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| 436 | |
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| 437 | aim_writetlvchain(&bs, tl); |
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| 438 | |
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| 439 | aim_addtlvtochain_raw(list, type, aim_bstream_curpos(&bs), buf); |
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| 440 | |
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| 441 | free(buf); |
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| 442 | |
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| 443 | return buflen; |
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| 444 | } |
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| 445 | |
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| 446 | /** |
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| 447 | * aim_writetlvchain - Write a TLV chain into a data buffer. |
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| 448 | * @buf: Destination buffer |
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| 449 | * @buflen: Maximum number of bytes that will be written to buffer |
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| 450 | * @list: Source TLV chain |
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| 451 | * |
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| 452 | * Copies a TLV chain into a raw data buffer, writing only the number |
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| 453 | * of bytes specified. This operation does not free the chain; |
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| 454 | * aim_freetlvchain() must still be called to free up the memory used |
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| 455 | * by the chain structures. |
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| 456 | * |
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| 457 | * XXX clean this up, make better use of bstreams |
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| 458 | */ |
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| 459 | faim_internal int aim_writetlvchain(aim_bstream_t *bs, aim_tlvlist_t **list) |
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| 460 | { |
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| 461 | int goodbuflen; |
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| 462 | aim_tlvlist_t *cur; |
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| 463 | |
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| 464 | /* do an initial run to test total length */ |
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| 465 | for (cur = *list, goodbuflen = 0; cur; cur = cur->next) { |
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| 466 | goodbuflen += 2 + 2; /* type + len */ |
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| 467 | goodbuflen += cur->tlv->length; |
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| 468 | } |
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| 469 | |
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| 470 | if (goodbuflen > aim_bstream_empty(bs)) |
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| 471 | return 0; /* not enough buffer */ |
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| 472 | |
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| 473 | /* do the real write-out */ |
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| 474 | for (cur = *list; cur; cur = cur->next) { |
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| 475 | aimbs_put16(bs, cur->tlv->type); |
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| 476 | aimbs_put16(bs, cur->tlv->length); |
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| 477 | if (cur->tlv->length) |
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| 478 | aimbs_putraw(bs, cur->tlv->value, cur->tlv->length); |
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| 479 | } |
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| 480 | |
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| 481 | return 1; /* XXX this is a nonsensical return */ |
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| 482 | } |
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| 483 | |
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| 484 | |
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| 485 | /** |
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| 486 | * aim_gettlv - Grab the Nth TLV of type type in the TLV list list. |
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| 487 | * @list: Source chain |
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| 488 | * @type: Requested TLV type |
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| 489 | * @nth: Index of TLV of type to get |
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| 490 | * |
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| 491 | * Returns a pointer to an aim_tlv_t of the specified type; |
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| 492 | * %NULL on error. The @nth parameter is specified starting at %1. |
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| 493 | * In most cases, there will be no more than one TLV of any type |
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| 494 | * in a chain. |
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| 495 | * |
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| 496 | */ |
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| 497 | faim_internal aim_tlv_t *aim_gettlv(aim_tlvlist_t *list, const fu16_t t, const int n) |
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| 498 | { |
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| 499 | aim_tlvlist_t *cur; |
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| 500 | int i; |
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| 501 | |
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| 502 | for (cur = list, i = 0; cur; cur = cur->next) { |
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| 503 | if (cur && cur->tlv) { |
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| 504 | if (cur->tlv->type == t) |
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| 505 | i++; |
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| 506 | if (i >= n) |
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| 507 | return cur->tlv; |
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| 508 | } |
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| 509 | } |
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| 510 | |
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| 511 | return NULL; |
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| 512 | } |
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| 513 | |
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| 514 | /** |
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| 515 | * aim_gettlv_str - Retrieve the Nth TLV in chain as a string. |
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| 516 | * @list: Source TLV chain |
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| 517 | * @type: TLV type to search for |
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| 518 | * @nth: Index of TLV to return |
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| 519 | * |
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| 520 | * Same as aim_gettlv(), except that the return value is a %NULL- |
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| 521 | * terminated string instead of an aim_tlv_t. This is a |
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| 522 | * dynamic buffer and must be freed by the caller. |
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| 523 | * |
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| 524 | */ |
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| 525 | faim_internal char *aim_gettlv_str(aim_tlvlist_t *list, const fu16_t t, const int n) |
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| 526 | { |
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| 527 | aim_tlv_t *tlv; |
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| 528 | char *newstr; |
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| 529 | |
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| 530 | if (!(tlv = aim_gettlv(list, t, n))) |
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| 531 | return NULL; |
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| 532 | |
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| 533 | newstr = (char *) malloc(tlv->length + 1); |
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| 534 | memcpy(newstr, tlv->value, tlv->length); |
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| 535 | *(newstr + tlv->length) = '\0'; |
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| 536 | |
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| 537 | return newstr; |
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| 538 | } |
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| 539 | |
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| 540 | /** |
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| 541 | * aim_gettlv8 - Retrieve the Nth TLV in chain as a 8bit integer. |
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| 542 | * @list: Source TLV chain |
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| 543 | * @type: TLV type to search for |
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| 544 | * @nth: Index of TLV to return |
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| 545 | * |
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| 546 | * Same as aim_gettlv(), except that the return value is a |
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| 547 | * 8bit integer instead of an aim_tlv_t. |
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| 548 | * |
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| 549 | */ |
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| 550 | faim_internal fu8_t aim_gettlv8(aim_tlvlist_t *list, const fu16_t t, const int n) |
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| 551 | { |
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| 552 | aim_tlv_t *tlv; |
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| 553 | |
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| 554 | if (!(tlv = aim_gettlv(list, t, n))) |
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| 555 | return 0; /* erm */ |
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| 556 | return aimutil_get8(tlv->value); |
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| 557 | } |
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| 558 | |
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| 559 | /** |
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| 560 | * aim_gettlv16 - Retrieve the Nth TLV in chain as a 16bit integer. |
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| 561 | * @list: Source TLV chain |
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| 562 | * @type: TLV type to search for |
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| 563 | * @nth: Index of TLV to return |
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| 564 | * |
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| 565 | * Same as aim_gettlv(), except that the return value is a |
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| 566 | * 16bit integer instead of an aim_tlv_t. |
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| 567 | * |
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| 568 | */ |
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| 569 | faim_internal fu16_t aim_gettlv16(aim_tlvlist_t *list, const fu16_t t, const int n) |
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| 570 | { |
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| 571 | aim_tlv_t *tlv; |
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| 572 | |
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| 573 | if (!(tlv = aim_gettlv(list, t, n))) |
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| 574 | return 0; /* erm */ |
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| 575 | return aimutil_get16(tlv->value); |
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| 576 | } |
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| 577 | |
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| 578 | /** |
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| 579 | * aim_gettlv32 - Retrieve the Nth TLV in chain as a 32bit integer. |
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| 580 | * @list: Source TLV chain |
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| 581 | * @type: TLV type to search for |
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| 582 | * @nth: Index of TLV to return |
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| 583 | * |
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| 584 | * Same as aim_gettlv(), except that the return value is a |
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| 585 | * 32bit integer instead of an aim_tlv_t. |
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| 586 | * |
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| 587 | */ |
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| 588 | faim_internal fu32_t aim_gettlv32(aim_tlvlist_t *list, const fu16_t t, const int n) |
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| 589 | { |
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| 590 | aim_tlv_t *tlv; |
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| 591 | |
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| 592 | if (!(tlv = aim_gettlv(list, t, n))) |
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| 593 | return 0; /* erm */ |
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| 594 | return aimutil_get32(tlv->value); |
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| 595 | } |
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| 596 | |
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| 597 | #if 0 |
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| 598 | /** |
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| 599 | * aim_puttlv_8 - Write a one-byte TLV. |
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| 600 | * @buf: Destination buffer |
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| 601 | * @t: TLV type |
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| 602 | * @v: Value |
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| 603 | * |
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| 604 | * Writes a TLV with a one-byte integer value portion. |
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| 605 | * |
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| 606 | */ |
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| 607 | faim_export int aim_puttlv_8(fu8_t *buf, const fu16_t t, const fu8_t v) |
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| 608 | { |
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| 609 | fu8_t v8[1]; |
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| 610 | |
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| 611 | aimutil_put8(v8, v); |
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| 612 | |
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| 613 | return aim_puttlv_raw(buf, t, 1, v8); |
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| 614 | } |
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| 615 | |
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| 616 | /** |
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| 617 | * aim_puttlv_16 - Write a two-byte TLV. |
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| 618 | * @buf: Destination buffer |
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| 619 | * @t: TLV type |
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| 620 | * @v: Value |
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| 621 | * |
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| 622 | * Writes a TLV with a two-byte integer value portion. |
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| 623 | * |
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| 624 | */ |
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| 625 | faim_export int aim_puttlv_16(fu8_t *buf, const fu16_t t, const fu16_t v) |
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| 626 | { |
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| 627 | fu8_t v16[2]; |
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| 628 | |
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| 629 | aimutil_put16(v16, v); |
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| 630 | |
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| 631 | return aim_puttlv_raw(buf, t, 2, v16); |
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| 632 | } |
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| 633 | |
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| 634 | |
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| 635 | /** |
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| 636 | * aim_puttlv_32 - Write a four-byte TLV. |
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| 637 | * @buf: Destination buffer |
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| 638 | * @t: TLV type |
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| 639 | * @v: Value |
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| 640 | * |
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| 641 | * Writes a TLV with a four-byte integer value portion. |
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| 642 | * |
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| 643 | */ |
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| 644 | faim_export int aim_puttlv_32(fu8_t *buf, const fu16_t t, const fu32_t v) |
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| 645 | { |
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| 646 | fu8_t v32[4]; |
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| 647 | |
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| 648 | aimutil_put32(v32, v); |
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| 649 | |
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| 650 | return aim_puttlv_raw(buf, t, 4, v32); |
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| 651 | } |
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| 652 | |
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| 653 | /** |
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| 654 | * aim_puttlv_raw - Write a raw TLV. |
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| 655 | * @buf: Destination buffer |
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| 656 | * @t: TLV type |
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| 657 | * @l: Length of string |
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| 658 | * @v: String to write |
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| 659 | * |
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| 660 | * Writes a TLV with a raw value portion. (Only the first @l |
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| 661 | * bytes of the passed buffer will be written, which should not |
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| 662 | * include a terminating NULL.) |
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| 663 | * |
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| 664 | */ |
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| 665 | faim_export int aim_puttlv_raw(fu8_t *buf, const fu16_t t, const fu16_t l, const fu8_t *v) |
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| 666 | { |
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| 667 | int i; |
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| 668 | |
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| 669 | i = aimutil_put16(buf, t); |
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| 670 | i += aimutil_put16(buf+i, l); |
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| 671 | if (l) |
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| 672 | memcpy(buf+i, v, l); |
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| 673 | i += l; |
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| 674 | |
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| 675 | return i; |
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| 676 | } |
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| 677 | #endif |
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