src/pEp_internal.h
author Thomas
Tue, 25 Jun 2019 14:44:43 +0200
branchsequoia_windows
changeset 3871 d1d515455192
parent 3835 65f3c7d59eb1
parent 3870 018251280dbf
child 3888 99d255a8dc60
permissions -rw-r--r--
Merge with ENGINE-581
vb@1517
     1
// This file is under GNU General Public License 3.0
vb@1517
     2
// see LICENSE.txt
vb@1517
     3
krista@3051
     4
#define PEP_ENGINE_VERSION "1.1.1"
vb@908
     5
vb@908
     6
// maximum attachment size to import as key 1MB, maximum of 20 attachments
vb@908
     7
vb@908
     8
#define MAX_KEY_SIZE (1024 * 1024)
vb@908
     9
#define MAX_KEYS_TO_IMPORT  20
vb@24
    10
krista@2612
    11
#define KEY_EXPIRE_DELTA (60 * 60 * 24 * 365)
krista@2612
    12
vb@233
    13
// this is 20 trustwords with 79 chars max
vb@251
    14
#define MAX_TRUSTWORDS_SPACE (20 * 80)
vb@24
    15
vb@24
    16
// XML parameters string
vb@24
    17
#define PARMS_MAX 32768
vb@24
    18
vb@24
    19
// maximum busy wait time in ms
krista@3870
    20
#define BUSY_WAIT_TIME 10000
vb@24
    21
vb@24
    22
// maximum line length for reading gpg.conf
vb@24
    23
#define MAX_LINELENGTH 1024
vb@24
    24
vb@24
    25
// default keyserver
vb@450
    26
#ifndef DEFAULT_KEYSERVER
vb@24
    27
#define DEFAULT_KEYSERVER "hkp://keys.gnupg.net"
vb@450
    28
#endif
vb@450
    29
vb@450
    30
// crashdump constants
vb@450
    31
#ifndef CRASHDUMP_DEFAULT_LINES
vb@450
    32
#define CRASHDUMP_DEFAULT_LINES 100
vb@450
    33
#endif
vb@450
    34
#define CRASHDUMP_MAX_LINES 32767
vb@24
    35
krista@2045
    36
// p≡p full string, NUL-terminated
krista@2045
    37
#ifndef PEP_SUBJ_STRING
krista@2045
    38
#define PEP_SUBJ_STRING {0x70,0xE2,0x89,0xA1,0x70,0x00}
krista@2045
    39
#define PEP_SUBJ_BYTELEN 5
krista@2045
    40
#endif
krista@2045
    41
krista@2078
    42
#ifndef PEP_SUBJ_KEY
krista@2078
    43
#define PEP_SUBJ_KEY "Subject: "
krista@2078
    44
#define PEP_SUBJ_KEY_LC "subject: "
krista@2078
    45
#define PEP_SUBJ_KEY_LEN 9
krista@2078
    46
#endif
krista@2078
    47
krista@2120
    48
#ifndef PEP_MSG_WRAP_KEY
krista@2120
    49
#define PEP_MSG_WRAP_KEY "pEp-Wrapped-Message-Info: "
krista@2120
    50
#define PEP_MSG_WRAP_KEY_LC "pep-wrapped-message-info: "
krista@2120
    51
#define PEP_MSG_WRAP_KEY_LEN 26
krista@2078
    52
#endif
krista@2078
    53
krista@2078
    54
vb@130
    55
#include "platform.h"
vb@130
    56
vb@24
    57
#ifdef WIN32
Thomas@3835
    58
#define KEYS_DB windoze_keys_db()
vb@24
    59
#define LOCAL_DB windoze_local_db()
vb@24
    60
#define SYSTEM_DB windoze_system_db()
vb@24
    61
#define LIBGPGME "libgpgme-11.dll"
vb@24
    62
#else // UNIX
vb@24
    63
#define _POSIX_C_SOURCE 200809L
vb@24
    64
#include <dlfcn.h>
krista@2684
    65
#ifdef NDEBUG
vb@24
    66
#define LOCAL_DB unix_local_db()
krista@2684
    67
#else
krista@2684
    68
#define LOCAL_DB unix_local_db(false)
krista@2684
    69
#endif
vb@24
    70
#ifndef SYSTEM_DB
vb@24
    71
#define SYSTEM_DB "/usr/share/pEp/system.db"
vb@24
    72
#endif
vb@24
    73
#ifndef LIBGPGME
vb@24
    74
#define LIBGPGME "libgpgme-pthread.so"
vb@24
    75
#endif
vb@24
    76
#endif
vb@24
    77
vb@24
    78
#include <locale.h>
vb@24
    79
#include <stdlib.h>
vb@24
    80
#include <string.h>
vb@24
    81
#include <assert.h>
vb@24
    82
#include <stdio.h>
edouard@1521
    83
#include <ctype.h>
krista@2176
    84
#include <math.h>
vb@24
    85
damiano@1997
    86
#ifdef SQLITE3_FROM_OS
damiano@1997
    87
#include <sqlite3.h>
damiano@1997
    88
#else
vb@24
    89
#include "sqlite3.h"
damiano@1997
    90
#endif
vb@24
    91
vb@24
    92
#include "pEpEngine.h"
Edouard@168
    93
Edouard@168
    94
// If not specified, build for GPG
neal@3191
    95
#ifndef USE_SEQUOIA
Edouard@168
    96
#ifndef USE_NETPGP
Edouard@168
    97
#ifndef USE_GPG
Edouard@168
    98
#define USE_GPG
Edouard@168
    99
#endif
Edouard@168
   100
#endif
neal@3191
   101
#endif
Edouard@168
   102
vb@3540
   103
#if defined(USE_SEQUOIA)
vb@3540
   104
#include "pgp_sequoia_internal.h"
vb@229
   105
#elif defined(USE_NETPGP)
Edouard@168
   106
#include "pgp_netpgp_internal.h"
vb@3540
   107
#elif defined(USE_GPG)
vb@3540
   108
#include "pgp_gpg_internal.h"
vb@24
   109
#endif
vb@24
   110
vb@292
   111
#include "keymanagement.h"
vb@28
   112
#include "cryptotech.h"
vb@28
   113
#include "transport.h"
vb@2847
   114
#include "sync_api.h"
vb@2830
   115
#include "Sync_func.h"
krista@2787
   116
krista@2947
   117
#include "key_reset.h"
vb@28
   118
vb@125
   119
#define NOT_IMPLEMENTED assert(0); return PEP_UNKNOWN_ERROR;
vb@24
   120
edouard@1603
   121
struct _pEpSession;
edouard@1603
   122
typedef struct _pEpSession pEpSession;
edouard@1603
   123
struct _pEpSession {
vb@24
   124
    const char *version;
vb@2833
   125
    messageToSend_t messageToSend;
vb@2833
   126
Edouard@168
   127
#ifdef USE_GPG
vb@24
   128
    gpgme_ctx_t ctx;
vb@229
   129
#elif defined(USE_NETPGP)
Edouard@252
   130
    pEpNetPGPSession ctx;
neal@3191
   131
#elif defined(USE_SEQUOIA)
neal@3191
   132
    sqlite3 *key_db;
neal@3212
   133
    struct {
neal@3212
   134
        sqlite3_stmt *begin_transaction;
krista@3870
   135
        sqlite3_stmt *begin_transaction_excl;
neal@3212
   136
        sqlite3_stmt *commit_transaction;
neal@3212
   137
        sqlite3_stmt *rollback_transaction;
neal@3212
   138
        sqlite3_stmt *tpk_find;
neal@3212
   139
        sqlite3_stmt *tsk_find;
neal@3212
   140
        sqlite3_stmt *tpk_find_by_keyid;
neal@3212
   141
        sqlite3_stmt *tsk_find_by_keyid;
neal@3212
   142
        sqlite3_stmt *tpk_find_by_email;
neal@3212
   143
        sqlite3_stmt *tsk_find_by_email;
neal@3212
   144
        sqlite3_stmt *tpk_all;
neal@3212
   145
        sqlite3_stmt *tsk_all;
neal@3212
   146
        sqlite3_stmt *tpk_save_insert_primary;
neal@3212
   147
        sqlite3_stmt *tpk_save_insert_subkeys;
neal@3212
   148
        sqlite3_stmt *tpk_save_insert_userids;
neal@3797
   149
        sqlite3_stmt *delete_keypair;
neal@3212
   150
    } sq_sql;
vb@24
   151
#endif
vb@24
   152
vb@62
   153
    PEP_cryptotech_t *cryptotech;
vb@3699
   154
    PEP_CIPHER_SUITE cipher_suite;
vb@3689
   155
vb@62
   156
    PEP_transport_t *transports;
vb@28
   157
vb@24
   158
    sqlite3 *db;
vb@24
   159
    sqlite3 *system_db;
vb@24
   160
vb@24
   161
    sqlite3_stmt *log;
vb@233
   162
    sqlite3_stmt *trustword;
vb@24
   163
    sqlite3_stmt *get_identity;
krista@2461
   164
    sqlite3_stmt *get_identity_without_trust_check;
krista@2461
   165
    sqlite3_stmt *get_identities_by_address;
krista@2966
   166
    sqlite3_stmt *get_identities_by_userid;
krista@2893
   167
    sqlite3_stmt *get_identities_by_main_key_id;
krista@1799
   168
    sqlite3_stmt *replace_identities_fpr;
krista@2461
   169
    sqlite3_stmt *replace_main_user_fpr;
krista@2461
   170
    sqlite3_stmt *get_main_user_fpr;
krista@2461
   171
    sqlite3_stmt *refresh_userid_default_key;
krista@2948
   172
    sqlite3_stmt *delete_key;
krista@2461
   173
    sqlite3_stmt *remove_fpr_as_default;
vb@24
   174
    sqlite3_stmt *set_person;
krista@2480
   175
    sqlite3_stmt *update_person;
krista@2965
   176
    sqlite3_stmt *delete_person;
krista@2480
   177
    sqlite3_stmt *exists_person;    
vb@2833
   178
    sqlite3_stmt *set_as_pEp_user;
vb@2833
   179
    sqlite3_stmt *is_pEp_user;
krista@2747
   180
    sqlite3_stmt *add_into_social_graph;
krista@2752
   181
    sqlite3_stmt *get_own_address_binding_from_contact;
krista@2752
   182
    sqlite3_stmt *set_revoke_contact_as_notified;
krista@2752
   183
    sqlite3_stmt *get_contacted_ids_from_revoke_fpr;
krista@2752
   184
    sqlite3_stmt *was_id_for_revoke_contacted;
krista@2800
   185
    sqlite3_stmt *get_last_contacted;
krista@3420
   186
    // sqlite3_stmt *set_device_group;
krista@3420
   187
    // sqlite3_stmt *get_device_group;
vb@24
   188
    sqlite3_stmt *set_pgp_keypair;
krista@2478
   189
    sqlite3_stmt *set_identity_entry;
krista@2480
   190
    sqlite3_stmt *update_identity_entry;
krista@2480
   191
    sqlite3_stmt *exists_identity_entry;        
vb@932
   192
    sqlite3_stmt *set_identity_flags;
edouard@1394
   193
    sqlite3_stmt *unset_identity_flags;
vb@24
   194
    sqlite3_stmt *set_trust;
krista@2542
   195
    sqlite3_stmt *update_trust;
krista@2480
   196
    sqlite3_stmt *exists_trust_entry;
vb@2834
   197
    sqlite3_stmt *update_trust_to_pEp;
krista@1799
   198
    sqlite3_stmt *update_trust_for_fpr;
vb@24
   199
    sqlite3_stmt *get_trust;
krista@2967
   200
    sqlite3_stmt *get_trust_by_userid;
vb@251
   201
    sqlite3_stmt *least_trust;
krista@2593
   202
    sqlite3_stmt *mark_compromised;
Edouard@409
   203
    sqlite3_stmt *reset_trust;
vb@450
   204
    sqlite3_stmt *crashdump;
vb@458
   205
    sqlite3_stmt *languagelist;
vb@458
   206
    sqlite3_stmt *i18n_token;
krista@2461
   207
    sqlite3_stmt *replace_userid;
fdik@494
   208
fdik@494
   209
    // blacklist
fdik@494
   210
    sqlite3_stmt *blacklist_add;
fdik@494
   211
    sqlite3_stmt *blacklist_delete;
fdik@494
   212
    sqlite3_stmt *blacklist_is_listed;
fdik@494
   213
    sqlite3_stmt *blacklist_retrieve;
Edouard@584
   214
    
krista@2893
   215
    // Keys
Edouard@584
   216
    sqlite3_stmt *own_key_is_listed;
krista@3346
   217
    sqlite3_stmt *is_own_address;
vb@955
   218
    sqlite3_stmt *own_identities_retrieve;
edouard@1394
   219
    sqlite3_stmt *own_keys_retrieve;
krista@2461
   220
    sqlite3_stmt *get_user_default_key;
krista@2893
   221
    sqlite3_stmt *get_all_keys_for_user;
krista@2461
   222
        
krista@2461
   223
    sqlite3_stmt *get_default_own_userid;
krista@2461
   224
krista@2893
   225
krista@2461
   226
//    sqlite3_stmt *set_own_key;
vb@292
   227
vb@632
   228
    // sequence value
vb@633
   229
    sqlite3_stmt *sequence_value1;
vb@633
   230
    sqlite3_stmt *sequence_value2;
vb@632
   231
edouard@1236
   232
    // revoked keys
Edouard@693
   233
    sqlite3_stmt *set_revoked;
Edouard@693
   234
    sqlite3_stmt *get_revoked;
krista@2752
   235
    sqlite3_stmt *get_replacement_fpr;
Edouard@693
   236
krista@2471
   237
    // mistrusted
krista@2471
   238
    sqlite3_stmt* add_mistrusted_key;
krista@2471
   239
    sqlite3_stmt* is_mistrusted_key;    
krista@2471
   240
    sqlite3_stmt* delete_mistrusted_key;
krista@2471
   241
    
krista@2461
   242
    // aliases
krista@2461
   243
    sqlite3_stmt *get_userid_alias_default;
krista@2461
   244
    sqlite3_stmt *add_userid_alias;
krista@2461
   245
Edouard@693
   246
    // callbacks
vb@292
   247
    examine_identity_t examine_identity;
vb@292
   248
    void *examine_management;
krista@2271
   249
    notifyHandshake_t notifyHandshake;
vb@2839
   250
    inject_sync_event_t inject_sync_event;
vb@2839
   251
    retrieve_next_sync_event_t retrieve_next_sync_event;
vb@464
   252
vb@2830
   253
    // pEp Sync
vb@3375
   254
    void *sync_management;
vb@3375
   255
    void *sync_obj;
vb@2830
   256
    struct Sync_state_s sync_state;
vb@2830
   257
vb@2830
   258
//     void* sync_state_payload;
vb@2830
   259
//     char sync_uuid[37];
vb@2830
   260
//     time_t LastCannotDecrypt;
vb@2830
   261
//     time_t LastUpdateRequest;
vb@690
   262
vb@464
   263
    // runtime config
vb@464
   264
vb@464
   265
    bool passive_mode;
vb@464
   266
    bool unencrypted_subject;
vb@1819
   267
    bool service_log;
Edouard@720
   268
    
roker@1722
   269
#ifdef DEBUG_ERRORSTACK
roker@1722
   270
    stringlist_t* errorstack;
roker@1722
   271
#endif
edouard@1603
   272
};
vb@48
   273
roker@1722
   274
vb@62
   275
PEP_STATUS init_transport_system(PEP_SESSION session, bool in_first);
vb@62
   276
void release_transport_system(PEP_SESSION session, bool out_last);
vb@48
   277
krista@1639
   278
/* NOT to be exposed to the outside!!! */
krista@1639
   279
PEP_STATUS encrypt_only(
krista@1639
   280
        PEP_SESSION session, const stringlist_t *keylist, const char *ptext,
krista@1639
   281
        size_t psize, char **ctext, size_t *csize
krista@1639
   282
);
krista@1639
   283
krista@2047
   284
#if defined(NDEBUG) || defined(NOLOG)
vb@216
   285
#define DEBUG_LOG(TITLE, ENTITY, DESC)
vb@216
   286
#else
huss@1571
   287
#ifdef ANDROID
huss@1571
   288
#include <android/log.h>
vb@1819
   289
#define  LOG_MORE(...)  __android_log_print(ANDROID_LOG_DEBUG, "pEpEngine", " %s :: %s :: %s :: %s ", __VA_ARGS__);
edouard@1630
   290
#else
edouard@1630
   291
#include <stdio.h>
vb@1819
   292
#define  LOG_MORE(...)  fprintf(stderr, "pEpEngine DEBUG_LOG('%s','%s','%s','%s')\n", __VA_ARGS__);
huss@1571
   293
#endif
edouard@1630
   294
#define DEBUG_LOG(TITLE, ENTITY, DESC) {\
vb@1819
   295
    log_event(session, (TITLE), (ENTITY), (DESC), "debug " __FILE__ ":" S_LINE);\
vb@1819
   296
    LOG_MORE((TITLE), (ENTITY), (DESC), __FILE__ ":" S_LINE)\
edouard@1630
   297
}
vb@216
   298
#endif
vb@216
   299
edouard@1746
   300
typedef enum _normalize_hex_rest_t {
edouard@1746
   301
    accept_hex,
edouard@1746
   302
    ignore_hex,
edouard@1746
   303
    reject_hex
edouard@1746
   304
} normalize_hex_res_t;
edouard@1746
   305
edouard@1746
   306
static inline normalize_hex_res_t _normalize_hex(char *hex) 
edouard@1746
   307
{
edouard@1746
   308
    if (*hex >= '0' && *hex <= '9')
edouard@1746
   309
        return accept_hex;
edouard@1746
   310
edouard@1746
   311
    if (*hex >= 'A' && *hex <= 'F') {
edouard@1746
   312
        *hex += 'a' - 'A';
edouard@1746
   313
        return accept_hex;
edouard@1746
   314
    }
edouard@1746
   315
edouard@1746
   316
    if (*hex >= 'a' && *hex <= 'f') 
edouard@1746
   317
        return accept_hex;
edouard@1746
   318
edouard@1746
   319
    if (*hex == ' ') 
edouard@1746
   320
        return ignore_hex;
edouard@1746
   321
edouard@1746
   322
    return reject_hex;
edouard@1746
   323
}
edouard@1746
   324
edouard@1521
   325
// Space tolerant and case insensitive fingerprint string compare
edouard@1746
   326
static inline PEP_STATUS _compare_fprs(
edouard@1746
   327
        const char* fpra,
edouard@1746
   328
        size_t fpras,
edouard@1746
   329
        const char* fprb,
edouard@1746
   330
        size_t fprbs,
edouard@1746
   331
        int* comparison)
edouard@1746
   332
{
edouard@1746
   333
edouard@1746
   334
    size_t ai = 0;
edouard@1746
   335
    size_t bi = 0;
edouard@1746
   336
    size_t significant = 0;
edouard@1746
   337
    int _comparison = 0;
edouard@1746
   338
    const int _FULL_FINGERPRINT_LENGTH = 40;
edouard@1746
   339
   
edouard@1746
   340
    // First compare every non-ignored chars until an end is reached
edouard@1746
   341
    while(ai < fpras && bi < fprbs)
edouard@1746
   342
    {
edouard@1746
   343
        char fprac = fpra[ai];
edouard@1746
   344
        char fprbc = fprb[bi];
edouard@1746
   345
        normalize_hex_res_t fprah = _normalize_hex(&fprac);
edouard@1746
   346
        normalize_hex_res_t fprbh = _normalize_hex(&fprbc);
edouard@1746
   347
edouard@1746
   348
        if(fprah == reject_hex || fprbh == reject_hex)
edouard@1746
   349
            return PEP_ILLEGAL_VALUE;
edouard@1746
   350
edouard@1746
   351
        if ( fprah == ignore_hex )
edouard@1746
   352
        {
edouard@1746
   353
            ai++;
edouard@1746
   354
        }
edouard@1746
   355
        else if ( fprbh == ignore_hex )
edouard@1746
   356
        {
edouard@1746
   357
            bi++;
edouard@1746
   358
        }
edouard@1746
   359
        else
edouard@1746
   360
        {
edouard@1746
   361
            if(fprac != fprbc && _comparison == 0 )
edouard@1746
   362
            {
edouard@1746
   363
                _comparison = fprac > fprbc ? 1 : -1;
edouard@1746
   364
            }
edouard@1746
   365
edouard@1746
   366
            significant++;
edouard@1746
   367
            ai++;
edouard@1746
   368
            bi++;
edouard@1746
   369
edouard@1746
   370
        } 
edouard@1746
   371
    }
edouard@1746
   372
edouard@1746
   373
    // Bail out if we didn't got enough significnt chars
edouard@1746
   374
    if (significant != _FULL_FINGERPRINT_LENGTH )
edouard@1746
   375
        return PEP_TRUSTWORDS_FPR_WRONG_LENGTH;
edouard@1746
   376
edouard@1746
   377
    // Then purge remaining chars, all must be ignored chars
edouard@1746
   378
    while ( ai < fpras )
edouard@1746
   379
    {
edouard@1746
   380
        char fprac = fpra[ai];
edouard@1746
   381
        normalize_hex_res_t fprah = _normalize_hex(&fprac);
edouard@1746
   382
        if( fprah == reject_hex )
edouard@1746
   383
            return PEP_ILLEGAL_VALUE;
edouard@1746
   384
        if ( fprah != ignore_hex )
edouard@1746
   385
            return PEP_TRUSTWORDS_FPR_WRONG_LENGTH;
edouard@1746
   386
        ai++;
edouard@1746
   387
    }
edouard@1746
   388
    while ( bi < fprbs )
edouard@1746
   389
    {
edouard@1746
   390
        char fprbc = fprb[bi];
edouard@1746
   391
        normalize_hex_res_t fprbh = _normalize_hex(&fprbc);
edouard@1746
   392
        if( fprbh == reject_hex )
edouard@1746
   393
            return PEP_ILLEGAL_VALUE;
edouard@1746
   394
        if ( fprbh != ignore_hex )
edouard@1746
   395
            return PEP_TRUSTWORDS_FPR_WRONG_LENGTH;
edouard@1746
   396
        bi++;
edouard@1746
   397
    }
edouard@1746
   398
edouard@1746
   399
    *comparison = _comparison;
edouard@1746
   400
    return PEP_STATUS_OK;
edouard@1746
   401
}
edouard@1746
   402
edouard@1521
   403
static inline int _same_fpr(
edouard@1521
   404
        const char* fpra,
edouard@1521
   405
        size_t fpras,
edouard@1521
   406
        const char* fprb,
edouard@1521
   407
        size_t fprbs
edouard@1521
   408
    )
edouard@1521
   409
{
edouard@1746
   410
    // illegal values are ignored, and considered not same.
edouard@1746
   411
    int comparison = 1;
edouard@1746
   412
edouard@1746
   413
    _compare_fprs(fpra, fpras, fprb, fprbs, &comparison);
edouard@1746
   414
edouard@1746
   415
    return comparison == 0;
edouard@1521
   416
}
roker@1722
   417
krista@2045
   418
// size is the length of the bytestr that's coming in. This is really only intended
krista@2045
   419
// for comparing two full strings. If charstr's length is different from bytestr_size,
krista@2045
   420
// we'll return a non-zero value.
krista@2045
   421
static inline int _unsigned_signed_strcmp(const unsigned char* bytestr, const char* charstr, int bytestr_size) {
krista@2045
   422
    int charstr_len = strlen(charstr);
krista@2045
   423
    if (charstr_len != bytestr_size)
krista@2045
   424
        return -1; // we don't actually care except that it's non-zero
krista@2045
   425
    return memcmp(bytestr, charstr, bytestr_size);
krista@2045
   426
}
krista@2045
   427
krista@2045
   428
// This is just a horrible example of C type madness. UTF-8 made me do it.
vb@2834
   429
static inline char* _pEp_subj_copy() {
krista@2285
   430
#ifndef WIN32
vb@2834
   431
    unsigned char pEpstr[] = PEP_SUBJ_STRING;
krista@2045
   432
    void* retval = calloc(1, sizeof(unsigned char)*PEP_SUBJ_BYTELEN + 1);
vb@2834
   433
    memcpy(retval, pEpstr, PEP_SUBJ_BYTELEN);
krista@2045
   434
    return (char*)retval;
krista@2285
   435
#else
krista@2285
   436
    return strdup("pEp");
krista@2285
   437
#endif
krista@2045
   438
}
krista@2045
   439
krista@2461
   440
static inline bool is_me(PEP_SESSION session, pEp_identity* test_ident) {
krista@2461
   441
    bool retval = false;
krista@2461
   442
    if (test_ident && test_ident->user_id) {
krista@2461
   443
        char* def_id = NULL;
krista@2461
   444
        get_default_own_userid(session, &def_id);
krista@2461
   445
        if (test_ident->me || 
krista@2461
   446
            (def_id && strcmp(def_id, test_ident->user_id) == 0)) {
krista@2461
   447
            retval = true;
krista@2461
   448
        }
krista@2461
   449
        free(def_id);
krista@2461
   450
    }
krista@2461
   451
    return retval;
krista@2461
   452
}
krista@2461
   453
krista@2461
   454
#ifndef EMPTYSTR
krista@2461
   455
#define EMPTYSTR(STR) ((STR) == NULL || (STR)[0] == '\0')
krista@2461
   456
#endif
krista@2461
   457
krista@2549
   458
#ifndef IS_PGP_CT
krista@2549
   459
#define IS_PGP_CT(CT) (((CT) | PEP_ct_confirmed) == PEP_ct_OpenPGP)
krista@2549
   460
#endif
krista@2549
   461
krista@2461
   462
#ifndef _MIN
krista@2461
   463
#define _MIN(A, B) ((B) > (A) ? (A) : (B))
krista@2461
   464
#endif
krista@2461
   465
#ifndef _MAX
krista@2461
   466
#define _MAX(A, B) ((B) > (A) ? (B) : (A))
krista@2461
   467
#endif
krista@2461
   468
krista@2461
   469
krista@2176
   470
// These are globals used in generating message IDs and should only be
krista@2176
   471
// computed once, as they're either really constants or OS-dependent
krista@2176
   472
krista@2467
   473
extern int _pEp_rand_max_bits;
krista@2467
   474
extern double _pEp_log2_36;
krista@2176
   475
krista@2176
   476
static inline void _init_globals() {
vb@2571
   477
    _pEp_rand_max_bits = (int) ceil(log2((double) RAND_MAX));
krista@2176
   478
    _pEp_log2_36 = log2(36);
krista@2176
   479
}
vb@3739
   480
vb@3739
   481
// spinlock implementation
vb@3739
   482
vb@3739
   483
static inline int Sqlite3_step(sqlite3_stmt* stmt)
vb@3739
   484
{
vb@3739
   485
    int rc;
vb@3739
   486
    do {
vb@3739
   487
        rc = sqlite3_step(stmt);
vb@3739
   488
    } while (rc == SQLITE_BUSY || rc == SQLITE_LOCKED);
vb@3739
   489
    return rc;
vb@3739
   490
}