Mercurial > libpst
annotate src/libpst.h @ 41:183ae993b9ad
security fix for potential buffer overrun in lz decompress
| author | carl |
|---|---|
| date | Tue, 02 Oct 2007 15:49:44 -0700 |
| parents | 2ad7ef0a3c4f |
| children | f6db1f060a95 |
| rev | line source |
|---|---|
| 16 | 1 /*** |
| 2 * libpst.h | |
| 3 * Part of LibPST project | |
| 4 * Written by David Smith | |
| 5 * dave.s@earthcorp.com | |
| 6 */ | |
| 7 // LibPST - Library for Accessing Outlook .pst files | |
| 8 // Dave Smith - davesmith@users.sourceforge.net | |
| 9 | |
| 10 #ifndef LIBPST_H | |
| 11 #define LIBPST_H | |
| 12 | |
| 13 #ifndef _MSC_VER | |
| 14 | |
| 15 #ifndef FILETIME_DEFINED | |
| 16 #define FILETIME_DEFINED | |
| 17 //Win32 Filetime struct - copied from WINE | |
| 18 typedef struct { | |
| 19 u_int32_t dwLowDateTime; | |
| 20 u_int32_t dwHighDateTime; | |
| 21 } FILETIME; | |
| 22 #endif //ifndef FILETIME_DEFINED | |
| 23 #endif //ifndef _MSC_VER | |
| 24 | |
| 25 // define the INT32_MAX here cause it isn't normally defined | |
| 26 #ifndef INT32_MAX | |
| 27 # define INT32_MAX INT_MAX | |
| 28 #endif | |
| 29 | |
| 30 // According to Jan Wolter, sys/param.h is the most portable source of endian | |
| 31 // information on UNIX systems. see http://www.unixpapa.com/incnote/byteorder.html | |
| 32 #ifdef _MSC_VER | |
| 33 #define BYTE_ORDER LITTLE_ENDIAN | |
| 34 #else | |
| 35 #include <sys/param.h> | |
| 36 #endif // defined _MSC_VER | |
| 37 | |
| 38 #if BYTE_ORDER == BIG_ENDIAN | |
| 39 # define LE64_CPU(x) \ | |
| 40 x = ((((x) & 0xff00000000000000) >> 56) | \ | |
| 41 (((x) & 0x00ff000000000000) >> 40) | \ | |
| 42 (((x) & 0x0000ff0000000000) >> 24) | \ | |
| 43 (((x) & 0x000000ff00000000) >> 8 ) | \ | |
| 44 (((x) & 0x00000000ff000000) << 8 ) | \ | |
| 45 (((x) & 0x0000000000ff0000) << 24) | \ | |
| 46 (((x) & 0x000000000000ff00) << 40) | \ | |
| 47 (((x) & 0x00000000000000ff) << 56)); | |
| 48 # define LE32_CPU(x) \ | |
| 49 x = ((((x) & 0xff000000) >> 24) | \ | |
| 50 (((x) & 0x00ff0000) >> 8 ) | \ | |
| 51 (((x) & 0x0000ff00) << 8 ) | \ | |
| 52 (((x) & 0x000000ff) << 24)); | |
| 53 # define LE16_CPU(x) \ | |
| 54 x = ((((x) & 0xff00) >> 8) | \ | |
| 55 (((x) & 0x00ff) << 8)); | |
| 56 #elif BYTE_ORDER == LITTLE_ENDIAN | |
| 57 # define LE64_CPU(x) {} | |
| 58 # define LE32_CPU(x) {} | |
| 59 # define LE16_CPU(x) {} | |
| 60 #else | |
| 61 # error "Byte order not supported by this library" | |
| 62 #endif // BYTE_ORDER | |
| 63 | |
| 64 | |
| 65 #ifdef _MSC_VER | |
| 66 #include "windows.h" | |
| 67 #define int32_t int | |
| 68 #define u_int32_t unsigned int | |
| 69 #define int16_t short int | |
| 70 #define u_int16_t unsigned short int | |
| 71 #endif // _MSC_VER | |
| 72 | |
| 73 #define PST_TYPE_NOTE 1 | |
| 74 #define PST_TYPE_APPOINTMENT 8 | |
| 75 #define PST_TYPE_CONTACT 9 | |
| 76 #define PST_TYPE_JOURNAL 10 | |
| 77 #define PST_TYPE_STICKYNOTE 11 | |
| 78 #define PST_TYPE_TASK 12 | |
| 79 #define PST_TYPE_OTHER 13 | |
| 80 #define PST_TYPE_REPORT 14 | |
| 81 | |
| 82 // defines whether decryption is done on this bit of data | |
| 83 #define PST_NO_ENC 0 | |
| 84 #define PST_ENC 1 | |
| 85 | |
| 86 // defines types of possible encryption | |
| 87 #define PST_NO_ENCRYPT 0 | |
| 88 #define PST_COMP_ENCRYPT 1 | |
| 89 #define PST_ENCRYPT 2 | |
| 90 | |
| 91 // defines different types of mappings | |
| 92 #define PST_MAP_ATTRIB 1 | |
| 93 #define PST_MAP_HEADER 2 | |
| 94 | |
| 95 // define my custom email attributes. | |
| 96 #define PST_ATTRIB_HEADER -1 | |
| 97 | |
| 98 // defines types of free/busy values for appointment->showas | |
| 99 #define PST_FREEBUSY_FREE 0 | |
| 100 #define PST_FREEBUSY_TENTATIVE 1 | |
| 101 #define PST_FREEBUSY_BUSY 2 | |
| 102 #define PST_FREEBUSY_OUT_OF_OFFICE 3 | |
| 103 | |
| 104 // defines labels for appointment->label | |
| 105 #define PST_APP_LABEL_NONE 0 // None | |
| 106 #define PST_APP_LABEL_IMPORTANT 1 // Important | |
| 107 #define PST_APP_LABEL_BUSINESS 2 // Business | |
| 108 #define PST_APP_LABEL_PERSONAL 3 // Personal | |
| 109 #define PST_APP_LABEL_VACATION 4 // Vacation | |
| 110 #define PST_APP_LABEL_MUST_ATTEND 5 // Must Attend | |
| 111 #define PST_APP_LABEL_TRAVEL_REQ 6 // Travel Required | |
| 112 #define PST_APP_LABEL_NEEDS_PREP 7 // Needs Preparation | |
| 113 #define PST_APP_LABEL_BIRTHDAY 8 // Birthday | |
| 114 #define PST_APP_LABEL_ANNIVERSARY 9 // Anniversary | |
| 115 #define PST_APP_LABEL_PHONE_CALL 10// Phone Call | |
| 116 | |
| 117 typedef struct _pst_misc_6_struct { | |
| 118 int32_t i1; | |
| 119 int32_t i2; | |
| 120 int32_t i3; | |
| 121 int32_t i4; | |
| 122 int32_t i5; | |
| 123 int32_t i6; | |
| 124 } pst_misc_6; | |
| 125 | |
| 126 typedef struct _pst_entryid_struct { | |
| 127 int32_t u1; | |
| 128 char entryid[16]; | |
| 35 | 129 u_int32_t id; |
| 16 | 130 } pst_entryid; |
| 131 | |
| 132 typedef struct _pst_desc_struct { | |
| 133 u_int32_t d_id; | |
| 134 u_int32_t desc_id; | |
| 135 u_int32_t list_id; | |
| 136 u_int32_t parent_id; | |
| 137 } pst_desc; | |
| 138 | |
| 139 typedef struct _pst_index_struct{ | |
| 140 u_int32_t id; | |
| 141 int32_t offset; | |
| 142 u_int16_t size; | |
| 143 int16_t u1; | |
| 144 } pst_index; | |
| 145 | |
| 146 typedef struct _pst_index_tree { | |
| 147 u_int32_t id; | |
| 148 int32_t offset; | |
| 149 size_t size; | |
| 150 int32_t u1; | |
| 151 struct _pst_index_tree * next; | |
| 152 } pst_index_ll; | |
| 153 | |
| 154 typedef struct _pst_index2_tree { | |
| 35 | 155 u_int32_t id2; |
| 16 | 156 pst_index_ll *id; |
| 157 struct _pst_index2_tree * next; | |
| 158 } pst_index2_ll; | |
| 159 | |
| 160 typedef struct _pst_desc_tree { | |
| 161 u_int32_t id; | |
| 162 pst_index_ll * list_index; | |
| 163 pst_index_ll * desc; | |
| 164 int32_t no_child; | |
| 165 struct _pst_desc_tree * prev; | |
| 166 struct _pst_desc_tree * next; | |
| 167 struct _pst_desc_tree * parent; | |
| 168 struct _pst_desc_tree * child; | |
| 169 struct _pst_desc_tree * child_tail; | |
| 170 } pst_desc_ll; | |
| 171 | |
| 172 typedef struct _pst_item_email_subject { | |
| 173 int32_t off1; | |
| 174 int32_t off2; | |
| 175 char *subj; | |
| 176 } pst_item_email_subject; | |
| 177 | |
| 178 typedef struct _pst_item_email { | |
| 179 FILETIME *arrival_date; | |
|
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180 int32_t autoforward; // 1 = true, 0 = not set, -1 = false |
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181 char *body; |
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182 char *cc_address; |
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183 char *common_name; |
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184 int32_t conv_index; |
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185 int32_t conversion_prohib; |
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186 int32_t delete_after_submit; // 1 = true, 0 = false |
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187 int32_t delivery_report; // 1 = true, 0 = false |
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188 char *encrypted_body; |
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189 int32_t encrypted_body_size; |
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190 char *encrypted_htmlbody; |
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191 int32_t encrypted_htmlbody_size; |
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192 int32_t flag; |
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193 char *header; |
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194 char *htmlbody; |
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195 int32_t importance; |
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196 char *in_reply_to; |
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197 int32_t message_cc_me; // 1 = true, 0 = false |
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198 int32_t message_recip_me; // 1 = true, 0 = false |
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199 int32_t message_to_me; // 1 = true, 0 = false |
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200 char *messageid; |
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201 int32_t orig_sensitivity; |
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202 char *outlook_recipient; |
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203 char *outlook_recipient2; |
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204 char *outlook_sender; |
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205 char *outlook_sender_name; |
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206 char *outlook_sender2; |
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207 int32_t priority; |
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208 char *proc_subject; |
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209 int32_t read_receipt; |
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210 char *recip_access; |
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211 char *recip_address; |
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212 char *recip2_access; |
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213 char *recip2_address; |
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214 int32_t reply_requested; |
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215 char *reply_to; |
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216 char *return_path_address; |
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217 int32_t rtf_body_char_count; |
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218 int32_t rtf_body_crc; |
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219 char *rtf_body_tag; |
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220 char *rtf_compressed; |
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221 u_int32_t rtf_compressed_size; |
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222 int32_t rtf_in_sync; // 1 = true, 0 = doesn't exist, -1 = false |
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223 int32_t rtf_ws_prefix_count; |
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224 int32_t rtf_ws_trailing_count; |
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225 char *sender_access; |
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226 char *sender_address; |
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227 char *sender2_access; |
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228 char *sender2_address; |
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229 int32_t sensitivity; |
| 16 | 230 FILETIME *sent_date; |
| 231 pst_entryid *sentmail_folder; | |
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232 char *sentto_address; |
| 16 | 233 pst_item_email_subject *subject; |
| 234 } pst_item_email; | |
| 235 | |
| 236 typedef struct _pst_item_folder { | |
| 237 int32_t email_count; | |
| 238 int32_t unseen_email_count; | |
| 239 int32_t assoc_count; | |
| 240 char subfolder; | |
| 241 } pst_item_folder; | |
| 242 | |
| 243 typedef struct _pst_item_message_store { | |
| 244 pst_entryid *deleted_items_folder; | |
| 245 pst_entryid *search_root_folder; | |
| 246 pst_entryid *top_of_personal_folder; | |
| 247 pst_entryid *top_of_folder; | |
| 248 int32_t valid_mask; // what folders the message store contains | |
| 249 int32_t pwd_chksum; | |
| 250 } pst_item_message_store; | |
| 251 | |
| 252 typedef struct _pst_item_contact { | |
| 253 char *access_method; | |
| 254 char *account_name; | |
| 255 char *address1; | |
| 256 char *address1a; | |
| 257 char *address1_desc; | |
| 258 char *address1_transport; | |
| 259 char *address2; | |
| 260 char *address2a; | |
| 261 char *address2_desc; | |
| 262 char *address2_transport; | |
| 263 char *address3; | |
| 264 char *address3a; | |
| 265 char *address3_desc; | |
| 266 char *address3_transport; | |
| 267 char *assistant_name; | |
| 268 char *assistant_phone; | |
| 269 char *billing_information; | |
| 270 FILETIME *birthday; | |
| 271 char *business_address; | |
| 272 char *business_city; | |
| 273 char *business_country; | |
| 274 char *business_fax; | |
| 275 char *business_homepage; | |
| 276 char *business_phone; | |
| 277 char *business_phone2; | |
| 278 char *business_po_box; | |
| 279 char *business_postal_code; | |
| 280 char *business_state; | |
| 281 char *business_street; | |
| 282 char *callback_phone; | |
| 283 char *car_phone; | |
| 284 char *company_main_phone; | |
| 285 char *company_name; | |
| 286 char *computer_name; | |
| 287 char *customer_id; | |
| 288 char *def_postal_address; | |
| 289 char *department; | |
| 290 char *display_name_prefix; | |
| 291 char *first_name; | |
| 292 char *followup; | |
| 293 char *free_busy_address; | |
| 294 char *ftp_site; | |
| 295 char *fullname; | |
| 296 int32_t gender; | |
| 297 char *gov_id; | |
| 298 char *hobbies; | |
| 299 char *home_address; | |
| 300 char *home_city; | |
| 301 char *home_country; | |
| 302 char *home_fax; | |
| 303 char *home_phone; | |
| 304 char *home_phone2; | |
| 305 char *home_po_box; | |
| 306 char *home_postal_code; | |
| 307 char *home_state; | |
| 308 char *home_street; | |
| 309 char *initials; | |
| 310 char *isdn_phone; | |
| 311 char *job_title; | |
| 312 char *keyword; | |
| 313 char *language; | |
| 314 char *location; | |
| 315 int32_t mail_permission; | |
| 316 char *manager_name; | |
| 317 char *middle_name; | |
| 318 char *mileage; | |
| 319 char *mobile_phone; | |
| 320 char *nickname; | |
| 321 char *office_loc; | |
| 322 char *org_id; | |
| 323 char *other_address; | |
| 324 char *other_city; | |
| 325 char *other_country; | |
| 326 char *other_phone; | |
| 327 char *other_po_box; | |
| 328 char *other_postal_code; | |
| 329 char *other_state; | |
| 330 char *other_street; | |
| 331 char *pager_phone; | |
| 332 char *personal_homepage; | |
| 333 char *pref_name; | |
| 334 char *primary_fax; | |
| 335 char *primary_phone; | |
| 336 char *profession; | |
| 337 char *radio_phone; | |
| 338 int32_t rich_text; | |
| 339 char *spouse_name; | |
| 340 char *suffix; | |
| 341 char *surname; | |
| 342 char *telex; | |
| 343 char *transmittable_display_name; | |
| 344 char *ttytdd_phone; | |
| 345 FILETIME *wedding_anniversary; | |
| 346 } pst_item_contact; | |
| 347 | |
| 348 typedef struct _pst_item_attach { | |
| 349 char *filename1; | |
| 350 char *filename2; | |
| 351 char *mimetype; | |
| 352 char *data; | |
| 36 | 353 size_t size; |
| 16 | 354 int32_t id2_val; |
| 355 int32_t id_val; // calculated from id2_val during creation of record | |
| 356 int32_t method; | |
| 357 int32_t position; | |
| 358 int32_t sequence; | |
| 359 struct _pst_item_attach *next; | |
| 360 } pst_item_attach; | |
| 361 | |
| 362 typedef struct _pst_item_extra_field { | |
| 363 char *field_name; | |
| 364 char *value; | |
| 365 struct _pst_item_extra_field *next; | |
| 366 } pst_item_extra_field; | |
| 367 | |
| 368 typedef struct _pst_item_journal { | |
| 369 FILETIME *end; | |
| 370 FILETIME *start; | |
| 371 char *type; | |
| 372 } pst_item_journal; | |
| 373 | |
| 374 typedef struct _pst_item_appointment { | |
| 375 FILETIME *end; | |
| 376 char *location; | |
| 377 FILETIME *reminder; | |
| 378 FILETIME *start; | |
| 379 char *timezonestring; | |
| 380 int32_t showas; | |
| 381 int32_t label; | |
| 31 | 382 int32_t all_day; |
| 16 | 383 } pst_item_appointment; |
| 384 | |
| 385 typedef struct _pst_item { | |
| 386 struct _pst_item_email *email; // data reffering to email | |
| 387 struct _pst_item_folder *folder; // data reffering to folder | |
| 388 struct _pst_item_contact *contact; // data reffering to contact | |
| 389 struct _pst_item_attach *attach; // linked list of attachments | |
| 390 struct _pst_item_message_store * message_store; // data referring to the message store | |
| 391 struct _pst_item_extra_field *extra_fields; // linked list of extra headers and such | |
| 392 struct _pst_item_journal *journal; // data reffering to a journal entry | |
| 393 struct _pst_item_appointment *appointment; // data reffering to a calendar entry | |
| 394 int32_t type; | |
| 395 char *ascii_type; | |
| 396 char *file_as; | |
| 397 char *comment; | |
| 398 int32_t message_size; | |
| 399 char *outlook_version; | |
| 400 char *record_key; // probably 16 bytes long. | |
| 401 size_t record_key_size; | |
| 402 int32_t response_requested; | |
| 403 FILETIME *create_date; | |
| 404 FILETIME *modify_date; | |
| 405 int32_t private_member; | |
| 406 } pst_item; | |
| 407 | |
| 408 typedef struct _pst_x_attrib_ll { | |
| 409 int32_t type; | |
| 410 int32_t mytype; | |
| 411 int32_t map; | |
| 412 void *data; | |
| 413 struct _pst_x_attrib_ll *next; | |
| 414 } pst_x_attrib_ll; | |
| 415 | |
| 416 typedef struct _pst_file { | |
| 417 pst_index_ll *i_head, *i_tail; | |
| 418 pst_index2_ll *i2_head; | |
| 419 pst_desc_ll *d_head, *d_tail; | |
| 420 pst_x_attrib_ll *x_head; | |
| 421 int32_t index1; | |
| 422 int32_t index1_count; | |
| 423 int32_t index2; | |
| 424 int32_t index2_count; | |
| 31 | 425 FILE * fp; // file pointer to opened PST file |
| 426 size_t size; // pst file size | |
| 427 unsigned char encryption; // pst encryption setting | |
| 428 unsigned char ind_type; // pst index type | |
| 16 | 429 } pst_file; |
| 430 | |
| 431 typedef struct _pst_block_offset { | |
| 432 int16_t from; | |
| 433 int16_t to; | |
| 434 } pst_block_offset; | |
| 435 | |
| 35 | 436 typedef struct _pst_block_offset_pointer { |
| 437 unsigned char *from; | |
| 438 unsigned char *to; | |
| 439 int needfree; | |
| 440 } pst_block_offset_pointer; | |
| 441 | |
| 16 | 442 struct _pst_num_item { |
| 35 | 443 u_int32_t id; |
| 16 | 444 unsigned char *data; |
| 445 int32_t type; | |
| 446 size_t size; | |
| 447 char *extra; | |
| 448 }; | |
| 449 | |
| 450 typedef struct _pst_num_array { | |
| 451 int32_t count_item; | |
| 39 | 452 int32_t orig_count; |
| 16 | 453 int32_t count_array; |
| 454 struct _pst_num_item ** items; | |
| 455 struct _pst_num_array *next; | |
| 456 } pst_num_array; | |
| 457 | |
| 458 struct holder { | |
| 459 unsigned char **buf; | |
| 460 FILE * fp; | |
| 461 int32_t base64; | |
| 462 char base64_extra_chars[3]; | |
| 463 int32_t base64_extra; | |
| 464 }; | |
| 465 | |
| 466 // prototypes | |
| 467 int32_t pst_open(pst_file *pf, char *name, char *mode); | |
| 468 int32_t pst_close(pst_file *pf); | |
| 469 pst_desc_ll * pst_getTopOfFolders(pst_file *pf, pst_item *root); | |
| 470 int32_t pst_attach_to_mem(pst_file *pf, pst_item_attach *attach, unsigned char **b); | |
| 471 int32_t pst_attach_to_file(pst_file *pf, pst_item_attach *attach, FILE* fp); | |
| 472 int32_t pst_attach_to_file_base64(pst_file *pf, pst_item_attach *attach, FILE* fp); | |
| 473 int32_t pst_load_index (pst_file *pf); | |
| 474 pst_desc_ll* pst_getNextDptr(pst_desc_ll* d); | |
| 475 int32_t pst_load_extended_attributes(pst_file *pf); | |
| 476 | |
|
34
07177825c91b
fix signed/unsigned to allow very small pst files with only leaf nodes
carl
parents:
31
diff
changeset
|
477 int32_t _pst_build_id_ptr(pst_file *pf, int32_t offset, int32_t depth, int32_t linku1, u_int32_t start_val, u_int32_t end_val); |
| 35 | 478 int32_t _pst_build_desc_ptr (pst_file *pf, int32_t offset, int32_t depth, int32_t linku1, u_int32_t *high_id, u_int32_t start_id, u_int32_t end_val); |
| 16 | 479 pst_item* _pst_getItem(pst_file *pf, pst_desc_ll *d_ptr); |
| 480 void * _pst_parse_item (pst_file *pf, pst_desc_ll *d_ptr); | |
| 481 pst_num_array * _pst_parse_block(pst_file *pf, u_int32_t block_id, pst_index2_ll *i2_head); | |
| 39 | 482 int32_t _pst_process(pst_num_array *list, pst_item *item, pst_item_attach *attach); |
| 16 | 483 int32_t _pst_free_list(pst_num_array *list); |
| 484 void _pst_freeItem(pst_item *item); | |
| 485 int32_t _pst_free_id2(pst_index2_ll * head); | |
| 486 int32_t _pst_free_id (pst_index_ll *head); | |
| 487 int32_t _pst_free_desc (pst_desc_ll *head); | |
| 488 int32_t _pst_free_xattrib(pst_x_attrib_ll *x); | |
| 35 | 489 int32_t _pst_getBlockOffsetPointer(pst_file *pf, pst_index2_ll *i2_head, unsigned char *buf, int32_t read_size, int32_t i_offset, int32_t offset, pst_block_offset_pointer *p); |
| 31 | 490 int32_t _pst_getBlockOffset(unsigned char *buf, int32_t read_size, int32_t i_offset, int32_t offset, pst_block_offset *p); |
| 16 | 491 pst_index2_ll * _pst_build_id2(pst_file *pf, pst_index_ll* list, pst_index2_ll* head_ptr); |
| 492 pst_index_ll * _pst_getID(pst_file* pf, u_int32_t id); | |
| 493 pst_index_ll * _pst_getID2(pst_index2_ll * ptr, u_int32_t id); | |
| 494 pst_desc_ll * _pst_getDptr(pst_file *pf, u_int32_t id); | |
| 495 size_t _pst_read_block_size(pst_file *pf, int32_t offset, size_t size, char ** buf, int32_t do_enc, | |
| 496 unsigned char is_index); | |
| 497 int32_t _pst_decrypt(unsigned char *buf, size_t size, int32_t type); | |
| 498 int32_t _pst_getAtPos(FILE *fp, int32_t pos, void* buf, u_int32_t size); | |
| 499 int32_t _pst_get (FILE *fp, void *buf, u_int32_t size); | |
| 500 size_t _pst_ff_getIDblock_dec(pst_file *pf, u_int32_t id, unsigned char **b); | |
| 501 size_t _pst_ff_getIDblock(pst_file *pf, u_int32_t id, unsigned char** b); | |
| 502 size_t _pst_ff_getID2block(pst_file *pf, u_int32_t id2, pst_index2_ll *id2_head, unsigned char** buf); | |
| 503 size_t _pst_ff_getID2data(pst_file *pf, pst_index_ll *ptr, struct holder *h); | |
| 504 size_t _pst_ff_compile_ID(pst_file *pf, u_int32_t id, struct holder *h, int32_t size); | |
| 505 | |
| 506 int32_t pst_strincmp(char *a, char *b, int32_t x); | |
| 507 int32_t pst_stricmp(char *a, char *b); | |
| 508 size_t pst_fwrite(const void*ptr, size_t size, size_t nmemb, FILE*stream); | |
| 509 char * _pst_wide_to_single(char *wt, int32_t size); | |
| 510 // DEBUG functions | |
| 511 int32_t _pst_printDptr(pst_file *pf); | |
| 512 int32_t _pst_printIDptr(pst_file* pf); | |
| 513 int32_t _pst_printID2ptr(pst_index2_ll *ptr); | |
| 514 void * xmalloc(size_t size); | |
| 515 | |
| 516 #endif // defined LIBPST_H |