src/protocols/oscar/bstream.c@f1405f65ff41 (annotated)
src/protocols/oscar/bstream.c
Tue, 26 Oct 2004 01:00:35 +0000
- author
- Stu Tomlinson <nosnilmot@pidgin.im>
- date
- Tue, 26 Oct 2004 01:00:35 +0000
- changeset 10145
- f1405f65ff41
- parent 7631
- 0e9e516bb6c3
- child 10464
- 034b1b3ad2be
- permissions
- -rw-r--r--
[gaim-migrate @ 11218]
This fixes the crash / hang / strangeness when dragging a buddy to a
conversation entry thing. Also fixes a minor memory leak with old plugins.
| 3952 | 1 | /* |
| 2 | * bstream.c | |
| 3 | * | |
| 4 | * This file contains all functions needed to use bstreams. | |
| 5 | */ | |
| 6 | ||
| 7 | #define FAIM_INTERNAL | |
| 8 | #include <aim.h> | |
| 9 | ||
| 10 | faim_internal int aim_bstream_init(aim_bstream_t *bs, fu8_t *data, int len) | |
| 11 | { | |
| 12 | ||
| 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 | { | |
| 65 | ||
| 66 | if (aim_bstream_empty(bs) < 1) | |
| 67 | return 0; /* XXX throw an exception */ | |
| 68 | ||
| 69 | bs->offset++; | |
| 70 | ||
| 71 | return aimutil_get8(bs->data + bs->offset - 1); | |
| 72 | } | |
| 73 | ||
| 74 | faim_internal fu16_t aimbs_get16(aim_bstream_t *bs) | |
| 75 | { | |
| 76 | ||
| 77 | if (aim_bstream_empty(bs) < 2) | |
| 78 | return 0; /* XXX throw an exception */ | |
| 79 | ||
| 80 | bs->offset += 2; | |
| 81 | ||
| 82 | return aimutil_get16(bs->data + bs->offset - 2); | |
| 83 | } | |
| 84 | ||
| 85 | faim_internal fu32_t aimbs_get32(aim_bstream_t *bs) | |
| 86 | { | |
| 87 | ||
| 88 | if (aim_bstream_empty(bs) < 4) | |
| 89 | return 0; /* XXX throw an exception */ | |
| 90 | ||
| 91 | bs->offset += 4; | |
| 92 | ||
| 93 | return aimutil_get32(bs->data + bs->offset - 4); | |
| 94 | } | |
| 95 | ||
| 96 | faim_internal fu8_t aimbs_getle8(aim_bstream_t *bs) | |
| 97 | { | |
| 98 | ||
| 99 | if (aim_bstream_empty(bs) < 1) | |
| 100 | return 0; /* XXX throw an exception */ | |
| 101 | ||
| 102 | bs->offset++; | |
| 103 | ||
| 104 | return aimutil_getle8(bs->data + bs->offset - 1); | |
| 105 | } | |
| 106 | ||
| 107 | faim_internal fu16_t aimbs_getle16(aim_bstream_t *bs) | |
| 108 | { | |
| 109 | ||
| 110 | if (aim_bstream_empty(bs) < 2) | |
| 111 | return 0; /* XXX throw an exception */ | |
| 112 | ||
| 113 | bs->offset += 2; | |
| 114 | ||
| 115 | return aimutil_getle16(bs->data + bs->offset - 2); | |
| 116 | } | |
| 117 | ||
| 118 | faim_internal fu32_t aimbs_getle32(aim_bstream_t *bs) | |
| 119 | { | |
| 120 | ||
| 121 | if (aim_bstream_empty(bs) < 4) | |
| 122 | return 0; /* XXX throw an exception */ | |
| 123 | ||
| 124 | bs->offset += 4; | |
| 125 | ||
| 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 | } | |
|
4624
8bf85f27e60c
[gaim-migrate @ 4915]
Mark Doliner <markdoliner@pidgin.im>
parents:
3952
diff
changeset
|
233 | |
| 3952 | 234 | ob[len] = '\0'; |
| 235 | ||
|
4642
a491791dc1a1
[gaim-migrate @ 4952]
Mark Doliner <markdoliner@pidgin.im>
parents:
4641
diff
changeset
|
236 | return ob; |
|
a491791dc1a1
[gaim-migrate @ 4952]
Mark Doliner <markdoliner@pidgin.im>
parents:
4641
diff
changeset
|
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 | } |
