src/protocols/oscar/bstream.c@034b1b3ad2be (annotated)
src/protocols/oscar/bstream.c
Sun, 02 Jan 2005 07:20:38 +0000
- author
- Mark Doliner <markdoliner@pidgin.im>
- date
- Sun, 02 Jan 2005 07:20:38 +0000
- changeset 10464
- 034b1b3ad2be
- parent 7631
- 0e9e516bb6c3
- child 10595
- 1338add2b0b0
- permissions
- -rw-r--r--
[gaim-migrate @ 11739]
SecurID support for AIM. This is untested. I'll try to get it tested
in the next few days. I'm backporting this to oldstatus. If you don't
know what SecurID, google around for it.
Basically it's an optional additional authentication method that
AOL members can opt for (and pay an extra fee). After entering your
password, you are prompted for a 6 digit number from a digit readout/
keychain-sized LCD screen. This number is pseudo-random and changes
every 60 seconds.
| 3952 | 1 | /* |
| 2 | * bstream.c | |
| 3 | * | |
| 4 | * This file contains all functions needed to use bstreams. | |
| 5 | */ | |
| 6 | ||
| 7 | #define FAIM_INTERNAL | |
|
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8 | #include <aim.h> |
| 3952 | 9 | |
| 10 | faim_internal int aim_bstream_init(aim_bstream_t *bs, fu8_t *data, int len) | |
| 11 | { | |
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12 | |
| 3952 | 13 | if (!bs) |
| 14 | return -1; | |
| 15 | ||
| 16 | bs->data = data; | |
| 17 | bs->len = len; | |
| 18 | bs->offset = 0; | |
| 19 | ||
| 20 | return 0; | |
| 21 | } | |
| 22 | ||
| 23 | faim_internal int aim_bstream_empty(aim_bstream_t *bs) | |
| 24 | { | |
| 25 | return bs->len - bs->offset; | |
| 26 | } | |
| 27 | ||
| 28 | faim_internal int aim_bstream_curpos(aim_bstream_t *bs) | |
| 29 | { | |
| 30 | return bs->offset; | |
| 31 | } | |
| 32 | ||
| 7631 | 33 | faim_internal int aim_bstream_setpos(aim_bstream_t *bs, unsigned int off) |
| 3952 | 34 | { |
| 35 | ||
| 36 | if (off > bs->len) | |
| 37 | return -1; | |
| 38 | ||
| 39 | bs->offset = off; | |
| 40 | ||
| 41 | return off; | |
| 42 | } | |
| 43 | ||
| 44 | faim_internal void aim_bstream_rewind(aim_bstream_t *bs) | |
| 45 | { | |
| 46 | ||
| 47 | aim_bstream_setpos(bs, 0); | |
| 48 | ||
| 49 | return; | |
| 50 | } | |
| 51 | ||
| 52 | faim_internal int aim_bstream_advance(aim_bstream_t *bs, int n) | |
| 53 | { | |
| 54 | ||
| 55 | if (aim_bstream_empty(bs) < n) | |
| 56 | return 0; /* XXX throw an exception */ | |
| 57 | ||
| 58 | bs->offset += n; | |
| 59 | ||
| 60 | return n; | |
| 61 | } | |
| 62 | ||
| 63 | faim_internal fu8_t aimbs_get8(aim_bstream_t *bs) | |
| 64 | { | |
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65 | |
| 3952 | 66 | if (aim_bstream_empty(bs) < 1) |
| 67 | return 0; /* XXX throw an exception */ | |
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68 | |
| 3952 | 69 | bs->offset++; |
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70 | |
| 3952 | 71 | return aimutil_get8(bs->data + bs->offset - 1); |
| 72 | } | |
| 73 | ||
| 74 | faim_internal fu16_t aimbs_get16(aim_bstream_t *bs) | |
| 75 | { | |
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76 | |
| 3952 | 77 | if (aim_bstream_empty(bs) < 2) |
| 78 | return 0; /* XXX throw an exception */ | |
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79 | |
| 3952 | 80 | bs->offset += 2; |
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81 | |
| 3952 | 82 | return aimutil_get16(bs->data + bs->offset - 2); |
| 83 | } | |
| 84 | ||
| 85 | faim_internal fu32_t aimbs_get32(aim_bstream_t *bs) | |
| 86 | { | |
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87 | |
| 3952 | 88 | if (aim_bstream_empty(bs) < 4) |
| 89 | return 0; /* XXX throw an exception */ | |
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90 | |
| 3952 | 91 | bs->offset += 4; |
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92 | |
| 3952 | 93 | return aimutil_get32(bs->data + bs->offset - 4); |
| 94 | } | |
| 95 | ||
| 96 | faim_internal fu8_t aimbs_getle8(aim_bstream_t *bs) | |
| 97 | { | |
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98 | |
| 3952 | 99 | if (aim_bstream_empty(bs) < 1) |
| 100 | return 0; /* XXX throw an exception */ | |
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101 | |
| 3952 | 102 | bs->offset++; |
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103 | |
| 3952 | 104 | return aimutil_getle8(bs->data + bs->offset - 1); |
| 105 | } | |
| 106 | ||
| 107 | faim_internal fu16_t aimbs_getle16(aim_bstream_t *bs) | |
| 108 | { | |
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109 | |
| 3952 | 110 | if (aim_bstream_empty(bs) < 2) |
| 111 | return 0; /* XXX throw an exception */ | |
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112 | |
| 3952 | 113 | bs->offset += 2; |
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114 | |
| 3952 | 115 | return aimutil_getle16(bs->data + bs->offset - 2); |
| 116 | } | |
| 117 | ||
| 118 | faim_internal fu32_t aimbs_getle32(aim_bstream_t *bs) | |
| 119 | { | |
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120 | |
| 3952 | 121 | if (aim_bstream_empty(bs) < 4) |
| 122 | return 0; /* XXX throw an exception */ | |
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123 | |
| 3952 | 124 | bs->offset += 4; |
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125 | |
| 3952 | 126 | return aimutil_getle32(bs->data + bs->offset - 4); |
| 127 | } | |
| 128 | ||
| 129 | faim_internal int aimbs_put8(aim_bstream_t *bs, fu8_t v) | |
| 130 | { | |
| 131 | ||
| 132 | if (aim_bstream_empty(bs) < 1) | |
| 133 | return 0; /* XXX throw an exception */ | |
| 134 | ||
| 135 | bs->offset += aimutil_put8(bs->data + bs->offset, v); | |
| 136 | ||
| 137 | return 1; | |
| 138 | } | |
| 139 | ||
| 140 | faim_internal int aimbs_put16(aim_bstream_t *bs, fu16_t v) | |
| 141 | { | |
| 142 | ||
| 143 | if (aim_bstream_empty(bs) < 2) | |
| 144 | return 0; /* XXX throw an exception */ | |
| 145 | ||
| 146 | bs->offset += aimutil_put16(bs->data + bs->offset, v); | |
| 147 | ||
| 148 | return 2; | |
| 149 | } | |
| 150 | ||
| 151 | faim_internal int aimbs_put32(aim_bstream_t *bs, fu32_t v) | |
| 152 | { | |
| 153 | ||
| 154 | if (aim_bstream_empty(bs) < 4) | |
| 155 | return 0; /* XXX throw an exception */ | |
| 156 | ||
| 157 | bs->offset += aimutil_put32(bs->data + bs->offset, v); | |
| 158 | ||
| 159 | return 1; | |
| 160 | } | |
| 161 | ||
| 162 | faim_internal int aimbs_putle8(aim_bstream_t *bs, fu8_t v) | |
| 163 | { | |
| 164 | ||
| 165 | if (aim_bstream_empty(bs) < 1) | |
| 166 | return 0; /* XXX throw an exception */ | |
| 167 | ||
| 168 | bs->offset += aimutil_putle8(bs->data + bs->offset, v); | |
| 169 | ||
| 170 | return 1; | |
| 171 | } | |
| 172 | ||
| 173 | faim_internal int aimbs_putle16(aim_bstream_t *bs, fu16_t v) | |
| 174 | { | |
| 175 | ||
| 176 | if (aim_bstream_empty(bs) < 2) | |
| 177 | return 0; /* XXX throw an exception */ | |
| 178 | ||
| 179 | bs->offset += aimutil_putle16(bs->data + bs->offset, v); | |
| 180 | ||
| 181 | return 2; | |
| 182 | } | |
| 183 | ||
| 184 | faim_internal int aimbs_putle32(aim_bstream_t *bs, fu32_t v) | |
| 185 | { | |
| 186 | ||
| 187 | if (aim_bstream_empty(bs) < 4) | |
| 188 | return 0; /* XXX throw an exception */ | |
| 189 | ||
| 190 | bs->offset += aimutil_putle32(bs->data + bs->offset, v); | |
| 191 | ||
| 192 | return 1; | |
| 193 | } | |
| 194 | ||
| 195 | faim_internal int aimbs_getrawbuf(aim_bstream_t *bs, fu8_t *buf, int len) | |
| 196 | { | |
| 197 | ||
| 198 | if (aim_bstream_empty(bs) < len) | |
| 199 | return 0; | |
| 200 | ||
| 201 | memcpy(buf, bs->data + bs->offset, len); | |
| 202 | bs->offset += len; | |
| 203 | ||
| 204 | return len; | |
| 205 | } | |
| 206 | ||
| 207 | faim_internal fu8_t *aimbs_getraw(aim_bstream_t *bs, int len) | |
| 208 | { | |
| 209 | fu8_t *ob; | |
| 210 | ||
| 211 | if (!(ob = malloc(len))) | |
| 212 | return NULL; | |
| 213 | ||
| 214 | if (aimbs_getrawbuf(bs, ob, len) < len) { | |
| 215 | free(ob); | |
| 216 | return NULL; | |
| 217 | } | |
| 218 | ||
| 219 | return ob; | |
| 220 | } | |
| 221 | ||
| 222 | faim_internal char *aimbs_getstr(aim_bstream_t *bs, int len) | |
| 223 | { | |
| 224 | char *ob; | |
| 225 | ||
| 226 | if (!(ob = malloc(len+1))) | |
| 227 | return NULL; | |
| 228 | ||
| 229 | if (aimbs_getrawbuf(bs, ob, len) < len) { | |
| 230 | free(ob); | |
| 231 | return NULL; | |
| 232 | } | |
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233 | |
| 3952 | 234 | ob[len] = '\0'; |
| 235 | ||
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236 | return ob; |
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237 | } |
| 3952 | 238 | |
| 239 | faim_internal int aimbs_putraw(aim_bstream_t *bs, const fu8_t *v, int len) | |
| 240 | { | |
| 241 | ||
| 242 | if (aim_bstream_empty(bs) < len) | |
| 243 | return 0; /* XXX throw an exception */ | |
| 244 | ||
| 245 | memcpy(bs->data + bs->offset, v, len); | |
| 246 | bs->offset += len; | |
| 247 | ||
| 248 | return len; | |
| 249 | } | |
| 250 | ||
| 251 | faim_internal int aimbs_putbs(aim_bstream_t *bs, aim_bstream_t *srcbs, int len) | |
| 252 | { | |
| 253 | ||
| 254 | if (aim_bstream_empty(srcbs) < len) | |
| 255 | return 0; /* XXX throw exception (underrun) */ | |
| 256 | ||
| 257 | if (aim_bstream_empty(bs) < len) | |
| 258 | return 0; /* XXX throw exception (overflow) */ | |
| 259 | ||
| 260 | memcpy(bs->data + bs->offset, srcbs->data + srcbs->offset, len); | |
| 261 | bs->offset += len; | |
| 262 | srcbs->offset += len; | |
| 263 | ||
| 264 | return len; | |
| 265 | } |
