[Asterisk-code-review] res config mysql: Fix broken column type checking (asterisk[master])

[Alexandre Fournier]

Alexandre Fournier has uploaded a new change for review.

  https://gerrit.asterisk.org/420

Change subject: res_config_mysql: Fix broken column type checking
......................................................................

res_config_mysql: Fix broken column type checking

MySQL configuration engine contains a bug in require_mysql(). This
function is used for column type checking in tables. This bug only
affects DATETIME, DATE and FLOAT types.

It came from mixing the first condition (switch-case-like
if/then/else), to check the expected column type, with the second
condition, to check the actual column type against the expected column
type. Both conditions must be checked separately in order to avoid the
execution of the wrong block.

ASTERISK-18252 #comment This patch might fix the issue
Reported by: Gareth Blades

ASTERISK-25041 #close
Reported by: Alexandre Fournier
Tested by: Alexandre Fournier

Change-Id: I0b8bf7e68ab938be8e6525a249260cb648cb0bfa
---
M addons/res_config_mysql.c
1 file changed, 36 insertions(+), 30 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/20/420/1

diff --git a/addons/res_config_mysql.c b/addons/res_config_mysql.c
index 299fe56..76bdeed 100644
--- a/addons/res_config_mysql.c
+++ b/addons/res_config_mysql.c
@@ -1202,38 +1202,44 @@
 							PICK_WHICH_ALTER_ACTION(bigint)
 						}
 					}
-				} else if (strncmp(column->type, "float", 5) == 0 && !ast_rq_is_int(type) && type != RQ_FLOAT) {
-					if (table->database->requirements == RQ_WARN) {
-						ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
-						res = -1;
-					} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
-						table_altered = 1;
-					} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
-						table_altered = 1;
-					} else {
-						res = -1;
+				} else if (strncmp(column->type, "float", 5) == 0) {
+					if (!ast_rq_is_int(type) && type != RQ_FLOAT) {
+						if (table->database->requirements == RQ_WARN) {
+							ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
+							res = -1;
+						} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
+							table_altered = 1;
+						} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
+							table_altered = 1;
+						} else {
+							res = -1;
+						}
 					}
-				} else if ((strncmp(column->type, "datetime", 8) == 0 || strncmp(column->type, "timestamp", 9) == 0) && type != RQ_DATETIME) {
-					if (table->database->requirements == RQ_WARN) {
-						ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
-						res = -1;
-					} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
-						table_altered = 1;
-					} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
-						table_altered = 1;
-					} else {
-						res = -1;
+				} else if (strncmp(column->type, "datetime", 8) == 0 || strncmp(column->type, "timestamp", 9) == 0) {
+					if (type != RQ_DATETIME) {
+						if (table->database->requirements == RQ_WARN) {
+							ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
+							res = -1;
+						} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
+							table_altered = 1;
+						} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
+							table_altered = 1;
+						} else {
+							res = -1;
+						}
 					}
-				} else if ((strncmp(column->type, "date", 4) == 0) && type != RQ_DATE) {
-					if (table->database->requirements == RQ_WARN) {
-						ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
-						res = -1;
-					} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
-						table_altered = 1;
-					} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
-						table_altered = 1;
-					} else {
-						res = -1;
+				} else if (strncmp(column->type, "date", 4) == 0) {
+					if (type != RQ_DATE) {
+						if (table->database->requirements == RQ_WARN) {
+							ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
+							res = -1;
+						} else if (table->database->requirements == RQ_CREATECLOSE && modify_mysql(database, tablename, column, type, size) == 0) {
+							table_altered = 1;
+						} else if (table->database->requirements == RQ_CREATECHAR && modify_mysql(database, tablename, column, RQ_CHAR, size) == 0) {
+							table_altered = 1;
+						} else {
+							res = -1;
+						}
 					}
 				} else { /* Other, possibly unsupported types? */
 					if (table->database->requirements == RQ_WARN) {

-- 
To view, visit https://gerrit.asterisk.org/420
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I0b8bf7e68ab938be8e6525a249260cb648cb0bfa
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Alexandre Fournier <alexandre.fournier at kiplink.fr>