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MDEV-15988 Crash in ./mtr mariabackup.undo_space_id

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xb_assign_undo_space_start(): Correctly pass the length of
the buffer, so that the file name will not be truncated.
This commit is contained in:
Marko Mäkelä 2018-04-23 18:14:15 +03:00
parent 82d4f08186
commit 5b79303b40
1 changed files with 2 additions and 2 deletions
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4
extra/mariabackup/xtrabackup.cc
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@ -3107,8 +3107,8 @@ static dberr_t xb_assign_undo_space_start()
name[dirnamelen++] = SRV_PATH_SEPARATOR;
}
ut_snprintf(name + dirnamelen, strlen(name) + strlen("ibdata1"),
"%s", "ibdata1");
ut_snprintf(name + dirnamelen, (sizeof name) - dirnamelen,
"%s", "ibdata1");
file = os_file_create(innodb_file_data_key, name, OS_FILE_OPEN,
OS_FILE_NORMAL, OS_DATA_FILE, &ret, 0);