int c_mkdirs(const char *path, mode_t mode) {
int tmp;
csync_stat_t sb;
mbchar_t *wpath = c_utf8_to_locale(path);
mbchar_t *swpath = NULL;
if (path == NULL) {
errno = EINVAL;
return -1;
}
if (_tstat(wpath, &sb) == 0) {
if (! S_ISDIR(sb.st_mode)) {
errno = ENOTDIR;
c_free_locale_string(wpath);
return -1;
}
}
tmp = strlen(path);
while(tmp > 0 && path[tmp - 1] == '/') --tmp;
while(tmp > 0 && path[tmp - 1] != '/') --tmp;
while(tmp > 0 && path[tmp - 1] == '/') --tmp;
if (tmp > 0) {
char subpath[tmp + 1];
memcpy(subpath, path, tmp);
subpath[tmp] = '\0';
swpath = c_utf8_to_locale(subpath);
if (_tstat(swpath, &sb) == 0) {
if (! S_ISDIR(sb.st_mode)) {
c_free_locale_string(swpath);
c_free_locale_string(wpath);
errno = ENOTDIR;
return -1;
}
} else if (errno != ENOENT) {
c_free_locale_string(wpath);
c_free_locale_string(swpath);
return -1;
} else if (c_mkdirs(subpath, mode) < 0) {
c_free_locale_string(swpath);
c_free_locale_string(wpath);
return -1;
}
}
tmp = _tmkdir(wpath, mode);
c_free_locale_string(swpath);
c_free_locale_string(wpath);
if ((tmp < 0) && (errno == EEXIST)) {
return 0;
}
return tmp;
}
int c_mkdirs(const char *path, mode_t mode) {
int tmp;
csync_stat_t sb;
const _TCHAR *wpath = c_multibyte(path);
const _TCHAR *swpath = NULL;
if (path == NULL) {
errno = EINVAL;
return -1;
}
if (_tstat(wpath, &sb) == 0) {
if (! S_ISDIR(sb.st_mode)) {
errno = ENOTDIR;
return -1;
}
}
tmp = strlen(path);
while(tmp > 0 && path[tmp - 1] == '/') --tmp;
while(tmp > 0 && path[tmp - 1] != '/') --tmp;
while(tmp > 0 && path[tmp - 1] == '/') --tmp;
if (tmp > 0) {
char subpath[tmp + 1];
memcpy(subpath, path, tmp);
subpath[tmp] = '\0';
swpath = c_multibyte(subpath);
if (_tstat(swpath, &sb) == 0) {
if (! S_ISDIR(sb.st_mode)) {
errno = ENOTDIR;
return -1;
}
} else if (errno != ENOENT) {
c_free_multibyte(swpath);
return -1;
} else if (c_mkdirs(subpath, mode) < 0) {
c_free_multibyte(swpath);
return -1;
}
}
#ifdef _WIN32
tmp = _tmkdir(wpath);
#else
tmp = _tmkdir(wpath, mode);
#endif
c_free_multibyte(swpath);
c_free_multibyte(wpath);
if ((tmp < 0) && (errno == EEXIST)) {
return 0;
}
return tmp;
}
int csync_init(CSYNC *ctx) {
int rc;
time_t timediff = -1;
char *log = NULL;
char *exclude = NULL;
char *lock = NULL;
char *config = NULL;
#ifndef _WIN32
char errbuf[256] = {0};
#endif
if (ctx == NULL) {
errno = EBADF;
return -1;
}
ctx->error_code = CSYNC_ERR_NONE;
/* Do not initialize twice */
if (ctx->status & CSYNC_STATUS_INIT) {
return 1;
}
/* load log file */
if (csync_log_init() < 0) {
ctx->error_code = CSYNC_ERR_LOG;
fprintf(stderr, "csync_init: logger init failed\n");
return -1;
}
/* create dir if it doesn't exist */
if (! c_isdir(ctx->options.config_dir)) {
c_mkdirs(ctx->options.config_dir, 0700);
}
if (asprintf(&log, "%s/%s", ctx->options.config_dir, CSYNC_LOG_FILE) < 0) {
ctx->error_code = CSYNC_ERR_UNSPEC;
rc = -1;
goto out;
}
/* load log if it exists */
if (c_isfile(log)) {
csync_log_load(log);
} else {
#ifndef _WIN32
if (c_copy(SYSCONFDIR "/csync/" CSYNC_LOG_FILE, log, 0644) == 0) {
csync_log_load(log);
}
#endif
}
/* create lock file */
if (asprintf(&lock, "%s/%s", ctx->options.config_dir, CSYNC_LOCK_FILE) < 0) {
ctx->error_code = CSYNC_ERR_UNSPEC;
rc = -1;
goto out;
}
#ifndef _WIN32
if (csync_lock(lock) < 0) {
ctx->error_code = CSYNC_ERR_LOCK;
rc = -1;
goto out;
}
#endif
/* load config file */
if (asprintf(&config, "%s/%s", ctx->options.config_dir, CSYNC_CONF_FILE) < 0) {
rc = -1;
goto out;
}
if (csync_config_load(ctx, config) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Could not load config file %s, using defaults.", config);
}
#ifndef _WIN32
/* load global exclude list */
if (asprintf(&exclude, "%s/csync/%s", SYSCONFDIR, CSYNC_EXCLUDE_FILE) < 0) {
ctx->error_code = CSYNC_ERR_UNSPEC;
rc = -1;
goto out;
}
if (csync_exclude_load(ctx, exclude) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_INFO, "Could not load %s - %s", exclude,
errbuf);
}
SAFE_FREE(exclude);
/* load exclude list */
if (asprintf(&exclude, "%s/%s", ctx->options.config_dir, CSYNC_EXCLUDE_FILE) < 0) {
ctx->error_code = CSYNC_ERR_UNSPEC;
rc = -1;
goto out;
}
if (csync_exclude_load(ctx, exclude) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_INFO, "Could not load %s - %s", exclude,
errbuf);
}
#endif
/* create/load statedb */
if (! csync_is_statedb_disabled(ctx)) {
uint64_t h = csync_create_statedb_hash(ctx);
if (asprintf(&ctx->statedb.file, "%s/csync_statedb_%llu.db",
ctx->options.config_dir, (long long unsigned int) h) < 0) {
ctx->error_code = CSYNC_ERR_UNSPEC;
rc = -1;
goto out;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Remote replica: %s", ctx->remote.uri);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Statedb: %s", ctx->statedb.file);
if (csync_statedb_load(ctx, ctx->statedb.file) < 0) {
ctx->error_code = CSYNC_ERR_STATEDB_LOAD;
rc = -1;
goto out;
}
}
ctx->local.type = LOCAL_REPLICA;
/* check for uri */
if ( !ctx->options.local_only_mode && csync_fnmatch("*://*", ctx->remote.uri, 0) == 0) {
size_t len;
len = strstr(ctx->remote.uri, "://") - ctx->remote.uri;
/* get protocol */
if (len > 0) {
char *module = NULL;
/* module name */
module = c_strndup(ctx->remote.uri, len);
if (module == NULL) {
ctx->error_code = CSYNC_ERR_MODULE;
rc = -1;
goto out;
}
/* load module */
retry_vio_init:
rc = csync_vio_init(ctx, module, NULL);
if (rc < 0) {
len = strlen(module);
if (len > 0 && module[len-1] == 's') {
module[len-1] = '\0';
goto retry_vio_init;
}
/* Now vio init finally failed which means a module could not be found. */
ctx->error_code = CSYNC_ERR_MODULE;
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"The csync module %s could not be loaded.", module);
SAFE_FREE(module);
goto out;
}
SAFE_FREE(module);
ctx->remote.type = REMOTE_REPLCIA;
}
} else {
ctx->remote.type = LOCAL_REPLICA;
}
if(!ctx->options.local_only_mode) {
if(ctx->module.capabilities.time_sync_required) {
timediff = csync_timediff(ctx);
if (timediff > ctx->options.max_time_difference) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Clock skew detected. The time difference is greater than %d seconds!",
ctx->options.max_time_difference);
ctx->error_code = CSYNC_ERR_TIMESKEW;
rc = -1;
goto out;
} else if (timediff < 0) {
/* error code was set in csync_timediff() */
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL, "Synchronisation is not possible!");
/* do not override error code set by timediff */
if(ctx->error_code == CSYNC_ERR_NONE) {
ctx->error_code = CSYNC_ERR_TIMESKEW;
}
rc = -1;
goto out;
}
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "Module does not need time synchronization.");
}
if(ctx->module.capabilities.unix_extensions == -1) { /* detect */
if (csync_unix_extensions(ctx) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL, "Could not detect filesystem type.");
ctx->error_code = CSYNC_ERR_FILESYSTEM;
rc = -1;
goto out;
}
} else {
/* The module specifies the value for the unix_extensions. */
ctx->options.unix_extensions = ctx->module.capabilities.unix_extensions;
}
}
if (c_rbtree_create(&ctx->local.tree, _key_cmp, _data_cmp) < 0) {
ctx->error_code = CSYNC_ERR_TREE;
rc = -1;
goto out;
}
if (c_rbtree_create(&ctx->remote.tree, _key_cmp, _data_cmp) < 0) {
ctx->error_code = CSYNC_ERR_TREE;
rc = -1;
goto out;
}
ctx->status = CSYNC_STATUS_INIT;
/* initialize random generator */
srand(time(NULL));
rc = 0;
out:
SAFE_FREE(log);
SAFE_FREE(lock);
SAFE_FREE(exclude);
SAFE_FREE(config);
return rc;
}
int csync_init(CSYNC *ctx) {
int rc;
time_t timediff = -1;
char *exclude = NULL;
char *lock = NULL;
char *config = NULL;
char errbuf[256] = {0};
if (ctx == NULL) {
errno = EBADF;
return -1;
}
ctx->status_code = CSYNC_STATUS_OK;
/* Do not initialize twice */
if (ctx->status & CSYNC_STATUS_INIT) {
return 1;
}
/* create dir if it doesn't exist */
if (! c_isdir(ctx->options.config_dir)) {
c_mkdirs(ctx->options.config_dir, 0700);
}
/* create lock file */
if (asprintf(&lock, "%s/%s", ctx->options.config_dir, CSYNC_LOCK_FILE) < 0) {
rc = -1;
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto out;
}
#ifndef _WIN32
if (csync_lock(lock) < 0) {
rc = -1;
ctx->status_code = CSYNC_STATUS_NO_LOCK;
goto out;
}
#endif
/* load config file */
if (asprintf(&config, "%s/%s", ctx->options.config_dir, CSYNC_CONF_FILE) < 0) {
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
rc = -1;
goto out;
}
rc = csync_config_parse_file(ctx, config);
if (rc < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Could not load config file %s, using defaults.", config);
}
#ifndef _WIN32
/* load global exclude list */
if (asprintf(&exclude, "%s/csync/%s", SYSCONFDIR, CSYNC_EXCLUDE_FILE) < 0) {
rc = -1;
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto out;
}
if (csync_exclude_load(ctx, exclude) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Could not load %s - %s", exclude,
errbuf);
}
SAFE_FREE(exclude);
#endif
/* load exclude list */
if (asprintf(&exclude, "%s/%s", ctx->options.config_dir,
CSYNC_EXCLUDE_FILE) < 0) {
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
rc = -1;
goto out;
}
if (csync_exclude_load(ctx, exclude) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_INFO, "Could not load %s - %s", exclude,
errbuf);
}
/* create/load statedb */
if (! csync_is_statedb_disabled(ctx)) {
rc = asprintf(&ctx->statedb.file, "%s/.csync_journal.db",
ctx->local.uri);
if (rc < 0) {
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto out;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Journal: %s", ctx->statedb.file);
rc = csync_statedb_load(ctx, ctx->statedb.file, &ctx->statedb.db);
if (rc < 0) {
ctx->status_code = CSYNC_STATUS_STATEDB_LOAD_ERROR;
goto out;
}
}
ctx->local.type = LOCAL_REPLICA;
/* check for uri */
if ( !ctx->options.local_only_mode && csync_fnmatch("*://*", ctx->remote.uri, 0) == 0) {
size_t len;
len = strstr(ctx->remote.uri, "://") - ctx->remote.uri;
/* get protocol */
if (len > 0) {
char *module = NULL;
/* module name */
module = c_strndup(ctx->remote.uri, len);
if (module == NULL) {
rc = -1;
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto out;
}
/* load module */
retry_vio_init:
rc = csync_vio_init(ctx, module, NULL);
if (rc < 0) {
len = strlen(module);
if (module[len-1] == 's') {
module[len-1] = '\0';
goto retry_vio_init;
}
SAFE_FREE(module);
ctx->status_code = CSYNC_STATUS_NO_MODULE;
goto out;
}
SAFE_FREE(module);
ctx->remote.type = REMOTE_REPLICA;
}
} else {
ctx->remote.type = LOCAL_REPLICA;
}
if( !ctx->options.local_only_mode ) {
timediff = csync_timediff(ctx);
if (timediff > ctx->options.max_time_difference) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Clock skew detected. The time difference is greater than %d seconds!",
ctx->options.max_time_difference);
ctx->status_code = CSYNC_STATUS_TIMESKEW;
rc = -1;
goto out;
} else if (timediff < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL, "Synchronisation is not possible!");
ctx->status_code = CSYNC_STATUS_TIMESKEW;
rc = -1;
goto out;
}
if (csync_unix_extensions(ctx) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL, "Could not detect filesystem type.");
ctx->status_code = CSYNC_STATUS_FILESYSTEM_UNKNOWN;
rc = -1;
goto out;
}
}
/* Install progress callbacks in the module. */
if (ctx->callbacks.file_progress_cb != NULL) {
int prc;
prc = csync_vio_set_property(ctx, "file_progress_callback", &ctx->callbacks.file_progress_cb);
if (prc == -1) {
/* The module does not support the callbacks */
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Could not install file progress callback!");
ctx->callbacks.file_progress_cb = NULL;
}
}
if (ctx->callbacks.overall_progress_cb != NULL) {
int prc;
prc = csync_vio_set_property(ctx, "overall_progress_callback", &ctx->callbacks.overall_progress_cb);
if (prc == -1) {
/* The module does not support the callbacks */
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Could not install overall progress callback!");
ctx->callbacks.overall_progress_cb = NULL;
}
}
if (c_rbtree_create(&ctx->local.tree, _key_cmp, _data_cmp) < 0) {
ctx->status_code = CSYNC_STATUS_TREE_ERROR;
rc = -1;
goto out;
}
if (c_rbtree_create(&ctx->remote.tree, _key_cmp, _data_cmp) < 0) {
ctx->status_code = CSYNC_STATUS_TREE_ERROR;
rc = -1;
goto out;
}
ctx->status = CSYNC_STATUS_INIT;
/* initialize random generator */
srand(time(NULL));
rc = 0;
out:
SAFE_FREE(lock);
SAFE_FREE(exclude);
SAFE_FREE(config);
return rc;
}
