0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "lib.h"

16f816d3f3c32ae3351834253f52ddd0212bcbf3Timo Sirainen#include "array.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "buffer.h"

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen#include "hash.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "mmap-util.h"

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen#include "read-full.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "write-full.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "mail-index-private.h"

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen#include "mail-index-sync-private.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "mail-transaction-log.h"

da5d50534cfca45d0aaaf0bdac17b287b4588809Timo Sirainen#include "mail-cache.h"

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <stdio.h>

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <stddef.h>

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <time.h>

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen#include <sys/stat.h>

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen

e4b09b008ab544eb8994beecbfffefa21d855e43Timo Sirainenstatic int mail_index_try_open_only(struct mail_index *index);

4b231ca0bbe3b536acbd350101e183441ce0247aTimo Sirainenstatic void mail_index_create_in_memory(struct mail_index *index,

4b231ca0bbe3b536acbd350101e183441ce0247aTimo Sirainen const struct mail_index_header *hdr);

e4b09b008ab544eb8994beecbfffefa21d855e43Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenstruct mail_index *mail_index_alloc(const char *dir, const char *prefix)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen struct mail_index *index;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index = i_new(struct mail_index, 1);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index->dir = i_strdup(dir);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index->prefix = i_strdup(prefix);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index->fd = -1;

024815ea2ffdda9ea79919f18e865663977f73eaTimo Sirainen

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen index->extension_pool = pool_alloconly_create("extension", 512);

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ARRAY_CREATE(&index->extensions, index->extension_pool,

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen struct mail_index_registered_ext, 5);

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ARRAY_CREATE(&index->sync_lost_handlers, default_pool,

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen mail_index_sync_lost_handler_t *, 4);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index->mode = 0600;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen index->gid = (gid_t)-1;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen index->keywords_ext_id =

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen mail_index_ext_register(index, "keywords", 128, 2, 1);

41e1c7380edda701719d8ce1fb4d465d2ec4c84dTimo Sirainen index->keywords_pool = pool_alloconly_create("keywords", 512);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen ARRAY_CREATE(&index->keywords, default_pool, const char *, 16);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen index->keywords_hash =

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen hash_create(default_pool, index->keywords_pool, 0,

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen strcase_hash, (hash_cmp_callback_t *)strcasecmp);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return index;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenvoid mail_index_free(struct mail_index *index)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{

ee246b46953e4b94b2f22e093373674fa9155500Timo Sirainen mail_index_close(index);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen hash_destroy(index->keywords_hash);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen pool_unref(index->extension_pool);

41e1c7380edda701719d8ce1fb4d465d2ec4c84dTimo Sirainen pool_unref(index->keywords_pool);

ee246b46953e4b94b2f22e093373674fa9155500Timo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen array_free(&index->sync_lost_handlers);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_free(&index->keywords);

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_free(index->error);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_free(index->dir);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_free(index->prefix);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_free(index);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainenvoid mail_index_set_permissions(struct mail_index *index,

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen mode_t mode, gid_t gid)

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen{

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen index->mode = mode & 0666;

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen index->gid = gid;

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen}

20a802016205bbcafc90f164f769ea801f88d014Timo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainenuint32_t mail_index_ext_register(struct mail_index *index, const char *name,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen uint32_t default_hdr_size,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen uint16_t default_record_size,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen uint16_t default_record_align)

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen{

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen const struct mail_index_registered_ext *extensions;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen struct mail_index_registered_ext rext;

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen unsigned int i, ext_count;

024815ea2ffdda9ea79919f18e865663977f73eaTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen extensions = array_get(&index->extensions, &ext_count);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen /* see if it's already there */

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen for (i = 0; i < ext_count; i++) {

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen if (strcmp(extensions[i].name, name) == 0)

024815ea2ffdda9ea79919f18e865663977f73eaTimo Sirainen return i;

024815ea2ffdda9ea79919f18e865663977f73eaTimo Sirainen }

1175f27441385a7011629f295f42708f9a3a4ffcTimo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen memset(&rext, 0, sizeof(rext));

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext.name = p_strdup(index->extension_pool, name);

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext.index_idx = ext_count;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext.hdr_size = default_hdr_size;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext.record_size = default_record_size;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext.record_align = default_record_align;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen array_append(&index->extensions, &rext, 1);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen return ext_count;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen}

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainenvoid mail_index_register_expunge_handler(struct mail_index *index,

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen uint32_t ext_id,

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen mail_index_expunge_handler_t *cb)

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen{

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen struct mail_index_registered_ext *rext;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen rext = array_idx_modifyable(&index->extensions, ext_id);

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen i_assert(rext->expunge_handler == NULL);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen rext->expunge_handler = cb;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen}

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainenvoid mail_index_unregister_expunge_handler(struct mail_index *index,

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen uint32_t ext_id)

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen{

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen struct mail_index_registered_ext *rext;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen rext = array_idx_modifyable(&index->extensions, ext_id);

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen i_assert(rext->expunge_handler != NULL);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

de12ff295bb3d0873b4dced5840612cbacd635efTimo Sirainen rext->expunge_handler = NULL;

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen}

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainenvoid mail_index_register_sync_handler(struct mail_index *index, uint32_t ext_id,

5626ae5e3316eced244adb6485c0927f1c7fdc41Timo Sirainen mail_index_sync_handler_t *cb,

5626ae5e3316eced244adb6485c0927f1c7fdc41Timo Sirainen enum mail_index_sync_handler_type type)

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen{

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen struct mail_index_registered_ext *rext;

5626ae5e3316eced244adb6485c0927f1c7fdc41Timo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext = array_idx_modifyable(&index->extensions, ext_id);

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen i_assert(rext->sync_handler.callback == NULL);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext->sync_handler.callback = cb;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext->sync_handler.type = type;

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen}

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainenvoid mail_index_unregister_sync_handler(struct mail_index *index,

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen uint32_t ext_id)

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen{

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen struct mail_index_registered_ext *rext;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext = array_idx_modifyable(&index->extensions, ext_id);

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen i_assert(rext->sync_handler.callback != NULL);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext->sync_handler.callback = NULL;

c27f03fa8fd2ef4acd1db814fae7d90e0eb9d3aeTimo Sirainen rext->sync_handler.type = 0;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen}

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

f23298fea47eecbeded985ee2537a34c4c4ef56bTimo Sirainenvoid mail_index_register_sync_lost_handler(struct mail_index *index,

f23298fea47eecbeded985ee2537a34c4c4ef56bTimo Sirainen mail_index_sync_lost_handler_t *cb)

f23298fea47eecbeded985ee2537a34c4c4ef56bTimo Sirainen{

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen array_append(&index->sync_lost_handlers, &cb, 1);

f23298fea47eecbeded985ee2537a34c4c4ef56bTimo Sirainen}

f23298fea47eecbeded985ee2537a34c4c4ef56bTimo Sirainen

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainenvoid mail_index_unregister_sync_lost_handler(struct mail_index *index,

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen mail_index_sync_lost_handler_t *cb)

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen{

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen mail_index_sync_lost_handler_t *const *handlers;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen unsigned int i, count;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen handlers = array_get(&index->sync_lost_handlers, &count);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen for (i = 0; i < count; i++) {

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen if (handlers[i] == cb) {

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen array_delete(&index->sync_lost_handlers, i, 1);

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen break;

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen }

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen }

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen}

519e0a461271843833a2b42626ad93f6e7ddc497Timo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainenstatic void mail_index_map_init_extbufs(struct mail_index_map *map,

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen unsigned int initial_count)

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen{

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen#define EXTENSION_NAME_APPROX_LEN 20

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen size_t size;

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen if (map->extension_pool == NULL) {

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen size = (sizeof(array_t) + BUFFER_APPROX_SIZE) * 2 +

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen initial_count * (EXTENSION_NAME_APPROX_LEN +

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen sizeof(struct mail_index_ext) +

367c05967091a2cbfce59b7f274f55b1a0f9e8c9Timo Sirainen sizeof(uint32_t));

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen map->extension_pool =

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen pool_alloconly_create("extensions",

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen nearest_power(size));

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen } else {

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen p_clear(map->extension_pool);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen }

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ARRAY_CREATE(&map->extensions, map->extension_pool,

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen struct mail_index_ext, initial_count);

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ARRAY_CREATE(&map->ext_id_map, map->extension_pool,

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen uint32_t, initial_count);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen}

1175f27441385a7011629f295f42708f9a3a4ffcTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainenuint32_t mail_index_map_lookup_ext(struct mail_index_map *map, const char *name)

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen{

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen const struct mail_index_ext *extensions;

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen unsigned int i, size;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen if (!array_is_created(&map->extensions))

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return (uint32_t)-1;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen extensions = array_get(&map->extensions, &size);

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen for (i = 0; i < size; i++) {

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen if (strcmp(extensions[i].name, name) == 0)

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return i;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen }

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return (uint32_t)-1;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen}

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainenmail_index_map_register_ext(struct mail_index *index,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen struct mail_index_map *map, const char *name,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen uint32_t hdr_offset, uint32_t hdr_size,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen uint32_t record_offset, uint32_t record_size,

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen uint32_t record_align, uint32_t reset_id)

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen{

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen struct mail_index_ext *ext;

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen uint32_t idx, empty_idx = (uint32_t)-1;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen if (!array_is_created(&map->extensions)) {

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen mail_index_map_init_extbufs(map, 5);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen idx = 0;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen } else {

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen idx = array_count(&map->extensions);

1175f27441385a7011629f295f42708f9a3a4ffcTimo Sirainen }

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen i_assert(mail_index_map_lookup_ext(map, name) == (uint32_t)-1);

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen

053843989f13d9013b265fb401a4bde7e0e6568eTimo Sirainen ext = array_append_space(&map->extensions);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext->name = p_strdup(map->extension_pool, name);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext->hdr_offset = hdr_offset;

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext->hdr_size = hdr_size;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen ext->record_offset = record_offset;

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext->record_size = record_size;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen ext->record_align = record_align;

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen ext->reset_id = reset_id;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ext->index_idx = mail_index_ext_register(index, name, hdr_size,

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen record_size, record_align);

ab286a8b58306eb8d22fc18342b6c199fd428e1eTimo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Update index ext_id -> map ext_id mapping. Fill non-used

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen while (array_count(&map->ext_id_map) < ext->index_idx)

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen array_append(&map->ext_id_map, &empty_idx, 1);

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen array_idx_set(&map->ext_id_map, ext->index_idx, &idx);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen return idx;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen}

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainenstatic int size_check(size_t *size_left, size_t size)

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen{

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen if (size > *size_left)

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return FALSE;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen *size_left -= size;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return TRUE;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen}

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainenstatic size_t get_align(size_t name_len)

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen{

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen size_t size = sizeof(struct mail_index_ext_header) + name_len;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen return MAIL_INDEX_HEADER_SIZE_ALIGN(size) - size;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen}

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainenstatic int mail_index_read_extensions(struct mail_index *index,

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen struct mail_index_map *map)

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen{

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen const struct mail_index_ext_header *ext_hdr;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen unsigned int i, old_count;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen const char *name;

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen uint32_t ext_id, offset, name_offset;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen size_t size_left;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen /* extension headers always start from 64bit offsets, so if base header

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen offset = MAIL_INDEX_HEADER_SIZE_ALIGN(map->hdr.base_header_size);

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen if (offset >= map->hdr.header_size && map->extension_pool == NULL) {

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen /* nothing to do, skip allocatations and all */

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen return 1;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen }

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen old_count = array_count(&index->extensions);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen mail_index_map_init_extbufs(map, old_count + 5);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext_id = (uint32_t)-1;

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen for (i = 0; i < old_count; i++)

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen array_append(&map->ext_id_map, &ext_id, 1);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen while (offset < map->hdr.header_size) {

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen ext_hdr = CONST_PTR_OFFSET(map->hdr_base, offset);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Extension header contains:

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen size_left = map->hdr.header_size - offset;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen if (!size_check(&size_left, sizeof(*ext_hdr)) ||

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen !size_check(&size_left, ext_hdr->name_size) ||

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen !size_check(&size_left, get_align(ext_hdr->name_size)) ||

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen !size_check(&size_left, ext_hdr->hdr_size)) {

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen "Header extension goes outside header",

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen index->filepath);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen return -1;

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen }

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen offset += sizeof(*ext_hdr);

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen name_offset = offset;

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen offset += ext_hdr->name_size + get_align(ext_hdr->name_size);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen t_push();

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen name = t_strndup(CONST_PTR_OFFSET(map->hdr_base, name_offset),

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen ext_hdr->name_size);

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen if (mail_index_map_lookup_ext(map, name) != (uint32_t)-1) {

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen "Duplicate header extension %s",

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen index->filepath, name);

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen t_pop();

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen return -1;

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen }

b79ec51bdeef6ef950eb5e890e65cc0491cf5fe9Timo Sirainen

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen if ((ext_hdr->record_offset % ext_hdr->record_align) != 0 ||

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen (map->hdr.record_size % ext_hdr->record_align) != 0) {

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen "Record field %s alignmentation %u not used",

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen index->filepath, name, ext_hdr->record_align);

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen t_pop();

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen return -1;

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen }

64541374b58e4c702b1926e87df421d180ffa006Timo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen mail_index_map_register_ext(index, map, name,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen offset, ext_hdr->hdr_size,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen ext_hdr->record_offset,

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen ext_hdr->record_size,

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen ext_hdr->record_align,

6a19e109ee8c5a6f688da83a86a7f6abeb71abddTimo Sirainen ext_hdr->reset_id);

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen t_pop();

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

bbf796c17f02538058d7559bfe96d677e5b55015Timo Sirainen offset += MAIL_INDEX_HEADER_SIZE_ALIGN(ext_hdr->hdr_size);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen }

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen return 1;

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen}

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainenint mail_index_keyword_lookup(struct mail_index *index,

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen const char *keyword, int autocreate,

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen unsigned int *idx_r)

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen{

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen char *keyword_dup;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen void *value;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* keywords_hash keeps a name => index mapping of keywords.

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (hash_lookup_full(index->keywords_hash, keyword, NULL, &value)) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen *idx_r = POINTER_CAST_TO(value, unsigned int);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return TRUE;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (!autocreate) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen *idx_r = (unsigned int)-1;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return FALSE;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen keyword = keyword_dup = p_strdup(index->keywords_pool, keyword);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen *idx_r = array_count(&index->keywords);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen hash_insert(index->keywords_hash, keyword_dup, POINTER_CAST(*idx_r));

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_append(&index->keywords, &keyword, 1);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return TRUE;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen}

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainenint mail_index_map_read_keywords(struct mail_index *index,

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen struct mail_index_map *map)

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen{

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const struct mail_index_ext *ext;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const struct mail_index_keyword_header *kw_hdr;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const struct mail_index_keyword_header_rec *kw_rec;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen const char *name;

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen unsigned int i, name_area_end_offset, old_count;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen uint32_t ext_id;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen ext_id = mail_index_map_lookup_ext(map, "keywords");

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if (ext_id == (uint32_t)-1) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (array_is_created(&map->keyword_idx_map))

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_clear(&map->keyword_idx_map);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen return 0;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

287ba82a8da3eaa473b5735d4eeac2fb4c5d8117Timo Sirainen ext = array_idx(&map->extensions, ext_id);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Extension header contains:

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen kw_hdr = CONST_PTR_OFFSET(map->hdr_base, ext->hdr_offset);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen kw_rec = (const void *)(kw_hdr + 1);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen name = (const char *)(kw_rec + kw_hdr->keywords_count);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen old_count = !array_is_created(&map->keyword_idx_map) ? 0 :

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_count(&map->keyword_idx_map);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Keywords can only be added into same mapping. Removing requires a

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (kw_hdr->keywords_count == old_count) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen /* nothing changed */

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return 0;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen /* make sure the header is valid */

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (kw_hdr->keywords_count < old_count) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen "Keywords removed unexpectedly",

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen index->filepath);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return -1;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((size_t)(name - (const char *)kw_hdr) > ext->hdr_size) {

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen "keywords_count larger than header size",

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen index->filepath);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen return -1;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen name_area_end_offset = (const char *)kw_hdr + ext->hdr_size - name;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen for (i = 0; i < kw_hdr->keywords_count; i++) {

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen if (kw_rec[i].name_offset > name_area_end_offset) {

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen "name_offset points outside allocated header",

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen index->filepath);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen return -1;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen if (name[name_area_end_offset-1] != '\0') {

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

871c7b8969e8627dc4c8b3e56fd126f948e6bce6Timo Sirainen "Keyword header doesn't end with NUL",

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen index->filepath);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen return -1;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen /* create file -> index mapping */

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (!array_is_created(&map->keyword_idx_map)) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen ARRAY_CREATE(&map->keyword_idx_map, default_pool,

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen unsigned int, kw_hdr->keywords_count);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen#ifdef DEBUG

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Check that existing headers are still the same. It's behind DEBUG

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen for (i = 0; i < array_count(&map->keyword_idx_map); i++) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen const char *keyword = name + kw_rec[i].name_offset;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen const unsigned int *old_idx;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen unsigned int idx;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen old_idx = array_idx(&map->keyword_idx_map, i);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (!mail_index_keyword_lookup(index, keyword, FALSE, &idx) ||

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen idx != *old_idx) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen "Keywords changed unexpectedly",

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen index->filepath);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return -1;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen }

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen#endif

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Register the newly seen keywords */

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen i = array_count(&map->keyword_idx_map);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen for (; i < kw_hdr->keywords_count; i++) {

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen const char *keyword = name + kw_rec[i].name_offset;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen unsigned int idx;

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen (void)mail_index_keyword_lookup(index, keyword, TRUE, &idx);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_append(&map->keyword_idx_map, &idx, 1);

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen }

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen return 0;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen}

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainenconst array_t *mail_index_get_keywords(struct mail_index *index)

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen{

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen /* Make sure all the keywords are in index->keywords. It's quick to do

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen (void)mail_index_map_read_keywords(index, index->map);

6a04c5112961c5f4fb2d2f25192b3dc424d62ad0Timo Sirainen

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen return &index->keywords;

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen}

16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenstatic int mail_index_check_header(struct mail_index *index,

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen struct mail_index_map *map)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen const struct mail_index_header *hdr = &map->hdr;

811f2e26d9782d9cb99fdf82e18ffa0a77564fe2Timo Sirainen enum mail_index_header_compat_flags compat_flags = 0;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#ifndef WORDS_BIGENDIAN

811f2e26d9782d9cb99fdf82e18ffa0a77564fe2Timo Sirainen compat_flags |= MAIL_INDEX_COMPAT_LITTLE_ENDIAN;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#endif

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (hdr->major_version != MAIL_INDEX_MAJOR_VERSION) {

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* major version change - handle silently(?) */

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -1;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }

811f2e26d9782d9cb99fdf82e18ffa0a77564fe2Timo Sirainen if (hdr->compat_flags != compat_flags) {

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* architecture change - handle silently(?) */

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -1;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen if ((map->hdr.flags & MAIL_INDEX_HDR_FLAG_CORRUPTED) != 0) {

8830fab191cab8440281eb641dfdd93974b2933bTimo Sirainen /* we've already complained about it */

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen return -1;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen }

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* following some extra checks that only take a bit of CPU */

92888ef30960c30ccc9e030fe7eab5d4d04a7d1cTimo Sirainen if (hdr->uid_validity == 0 && hdr->next_uid != 1) {

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

92888ef30960c30ccc9e030fe7eab5d4d04a7d1cTimo Sirainen "uid_validity = 0, next_uid = %u",

92888ef30960c30ccc9e030fe7eab5d4d04a7d1cTimo Sirainen index->filepath, hdr->next_uid);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -1;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

7e94cf9d70ce9fdeccb7a85ff400b899e6386f36Timo Sirainen if (hdr->record_size < sizeof(struct mail_index_record)) {

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

7e94cf9d70ce9fdeccb7a85ff400b899e6386f36Timo Sirainen "record_size too small: %u < %"PRIuSIZE_T,

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen index->filepath, hdr->record_size,

7e94cf9d70ce9fdeccb7a85ff400b899e6386f36Timo Sirainen sizeof(struct mail_index_record));

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen return -1;

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen }

8e7da21696c9f8a6d5e601243fb6172ec85d47b2Timo Sirainen

e12648867876aaec17e06ee4caef0bb60363449dTimo Sirainen if ((hdr->flags & MAIL_INDEX_HDR_FLAG_FSCK) != 0)

e12648867876aaec17e06ee4caef0bb60363449dTimo Sirainen return 0;

e12648867876aaec17e06ee4caef0bb60363449dTimo Sirainen

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (hdr->next_uid == 0)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 0;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

d482b35af87f5fd872bad007da0475813a401a49Timo Sirainen if (hdr->recent_messages_count > hdr->messages_count ||

d482b35af87f5fd872bad007da0475813a401a49Timo Sirainen hdr->seen_messages_count > hdr->messages_count ||

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen hdr->deleted_messages_count > hdr->messages_count)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 0;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (hdr->first_recent_uid_lowwater > hdr->next_uid ||

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen hdr->first_unseen_uid_lowwater > hdr->next_uid ||

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen hdr->first_deleted_uid_lowwater > hdr->next_uid)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 0;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen return mail_index_read_extensions(index, map);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainenstatic void mail_index_map_clear(struct mail_index *index,

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen struct mail_index_map *map)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (map->buffer != NULL) {

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_assert(map->mmap_base == NULL);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen buffer_free(map->buffer);

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen map->buffer = NULL;

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen } else if (map->mmap_base != NULL) {

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_assert(map->buffer == NULL);

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen if (munmap(map->mmap_base, map->mmap_size) < 0)

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen mail_index_set_syscall_error(index, "munmap()");

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen map->mmap_base = NULL;

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen }

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen if (map->refcount > 0) {

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen memset(&map->hdr, 0, sizeof(map->hdr));

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen map->mmap_size = 0;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen map->mmap_used_size = 0;

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen map->records = NULL;

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen map->records_count = 0;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen}

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainenvoid mail_index_unmap(struct mail_index *index, struct mail_index_map *map)

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen{

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen if (--map->refcount > 0)

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen return;

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen i_assert(map->refcount == 0);

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen mail_index_map_clear(index, map);

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen if (map->extension_pool != NULL)

7797aa2479e99aeb71057b7a2584b2cb72e4d3f8Timo Sirainen pool_unref(map->extension_pool);

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen if (array_is_created(&map->keyword_idx_map))

bb10ebcf076c959c752f583746d83805d7686df8Timo Sirainen array_free(&map->keyword_idx_map);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen buffer_free(map->hdr_copy_buf);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_free(map);

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainenstatic void mail_index_map_copy_hdr(struct mail_index_map *map,

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen const struct mail_index_header *hdr)

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen{

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen if (hdr->base_header_size < sizeof(map->hdr)) {

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen /* header smaller than ours, make a copy so our newer headers

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen memset(&map->hdr, 0, sizeof(map->hdr));

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen memcpy(&map->hdr, hdr, hdr->base_header_size);

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen } else {

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen map->hdr = *hdr;

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen }

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen}

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainenstatic int mail_index_mmap(struct mail_index *index, struct mail_index_map *map)

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen{

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen const struct mail_index_header *hdr;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen unsigned int records_count;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen i_assert(!map->write_to_disk);

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen if (map->buffer != NULL) {

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen /* we had temporarily used a buffer, eg. for updating index */

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen buffer_free(map->buffer);

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen map->buffer = NULL;

3c24d47ad5ff02ea00684233bef314ef2eefda4aTimo Sirainen }

4c1827d5d718d6f610df3209a2eb95a6591698afTimo Sirainen

5a4ab3d6e108a899c8b51bebd0094a37b738d5a1Timo Sirainen map->mmap_base = index->readonly ?

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen mmap_ro_file(index->fd, &map->mmap_size) :

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen mmap_rw_file(index->fd, &map->mmap_size);

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen if (map->mmap_base == MAP_FAILED) {

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen map->mmap_base = NULL;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen mail_index_set_syscall_error(index, "mmap()");

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -1;

0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }

31ddc75584c5cde53d2e78a737587f2e7fdcb0d2Timo Sirainen

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen hdr = map->mmap_base;

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen if (map->mmap_size >

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen offsetof(struct mail_index_header, major_version) &&

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen hdr->major_version != MAIL_INDEX_MAJOR_VERSION) {

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen /* major version change - handle silently */

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen return 0;

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen }

91b5eae18db48ebb70eee5407a7ab52bf798ee12Timo Sirainen

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen if (map->mmap_size < MAIL_INDEX_HEADER_MIN_SIZE) {

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen "File too small (%"PRIuSIZE_T")",

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen index->filepath, map->mmap_size);

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen return 0;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen }

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen map->mmap_used_size = hdr->header_size +

7e94cf9d70ce9fdeccb7a85ff400b899e6386f36Timo Sirainen hdr->messages_count * hdr->record_size;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen if (map->mmap_used_size > map->mmap_size) {

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen records_count = (map->mmap_size - hdr->header_size) /

7e94cf9d70ce9fdeccb7a85ff400b899e6386f36Timo Sirainen hdr->record_size;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen mail_index_set_error(index, "Corrupted index file %s: "

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen "messages_count too large (%u > %u)",

cd65dfcedc603fabbf644be793efb09096f6c1b5Timo Sirainen index->filepath, hdr->messages_count,

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen records_count);

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen return 0;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen }

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen

0ce3bbb0f03fb0ee99258b41b5a1d689c1158a75Timo Sirainen mail_index_map_copy_hdr(map, hdr);

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen map->hdr_base = map->mmap_base;

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen map->records = PTR_OFFSET(map->mmap_base, map->hdr.header_size);

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen map->records_count = map->hdr.messages_count;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen return 1;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen}

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainenstatic int mail_index_read_header(struct mail_index *index,

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen struct mail_index_header *hdr, size_t *pos_r)

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen{

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen size_t pos;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen int ret;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen memset(hdr, 0, sizeof(*hdr));

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen ret = 1;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen for (pos = 0; ret > 0 && pos < sizeof(*hdr); ) {

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen ret = pread(index->fd, PTR_OFFSET(hdr, pos),

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen sizeof(*hdr) - pos, pos);

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen if (ret > 0)

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen pos += ret;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen }

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen *pos_r = pos;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen return ret;

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen}

e86d0d34fe365da4c7ca4312d575bfcbf3a01c0eTimo Sirainen

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainenstatic int mail_index_read_map(struct mail_index *index,

5a07b37a9df398b5189c14872a600384208ab74bTimo Sirainen struct mail_index_map *map, int *retry_r)

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen{

1b3bb8d39686ed24730cbc31cc9a33dc62c8c6c3Timo Sirainen struct mail_index_header hdr;

28dd1eeb9fdb93051bb5899c80cf300d69ba9f9eTimo Sirainen void *data = NULL;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen ssize_t ret;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen size_t pos, records_size;

b2105c78f0fd58281317e6d777ded860f33153a3Timo Sirainen

4c1827d5d718d6f610df3209a2eb95a6591698afTimo Sirainen i_assert(map->mmap_base == NULL);

4c1827d5d718d6f610df3209a2eb95a6591698afTimo Sirainen