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res_config_odbc: Use dynamically sized buffers to store row data so values do not get truncated.

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ASTERISK-23582 #close
ASTERISk-23582 #comment Reported by: Walter Doekes

Review: https://reviewboard.asterisk.org/r/3557/
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Merged revisions 414693 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 414694 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 414695 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@414696 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2014-05-28 11:37:50 +00:00
parent e5194c91fc
commit dcfae78574
2 changed files with 157 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

81
funcs/func_odbc.c
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@@ -109,9 +109,9 @@ struct acf_odbc_query {
AST_RWLIST_ENTRY(acf_odbc_query) list;
char readhandle[5][30];
char writehandle[5][30];
char sql_read[2048];
char sql_write[2048];
char sql_insert[2048];
char *sql_read;
char *sql_write;
char *sql_insert;
unsigned int flags;
int rowlimit;
struct ast_custom_function *acf;
@@ -855,6 +855,23 @@ static int exec_odbcfinish(struct ast_channel *chan, const char *data)
return 0;
}
static int free_acf_query(struct acf_odbc_query *query)
{
if (query) {
if (query->acf) {
if (query->acf->name)
ast_free((char *)query->acf->name);
ast_string_field_free_memory(query->acf);
ast_free(query->acf);
}
ast_free(query->sql_read);
ast_free(query->sql_write);
ast_free(query->sql_insert);
ast_free(query);
}
return 0;
}
static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_query **query)
{
const char *tmp;
@@ -899,35 +916,35 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
}
if ((tmp = ast_variable_retrieve(cfg, catg, "readsql")))
ast_copy_string((*query)->sql_read, tmp, sizeof((*query)->sql_read));
(*query)->sql_read = ast_strdup(tmp);
else if ((tmp = ast_variable_retrieve(cfg, catg, "read"))) {
ast_log(LOG_WARNING, "Parameter 'read' is deprecated for category %s. Please use 'readsql' instead.\n", catg);
ast_copy_string((*query)->sql_read, tmp, sizeof((*query)->sql_read));
(*query)->sql_read = ast_strdup(tmp);
}
if (!ast_strlen_zero((*query)->sql_read) && ast_strlen_zero((*query)->readhandle[0])) {
ast_free(*query);
free_acf_query(*query);
*query = NULL;
ast_log(LOG_ERROR, "There is SQL, but no ODBC class to be used for reading: %s\n", catg);
return EINVAL;
}
if ((tmp = ast_variable_retrieve(cfg, catg, "writesql")))
ast_copy_string((*query)->sql_write, tmp, sizeof((*query)->sql_write));
(*query)->sql_write = ast_strdup(tmp);
else if ((tmp = ast_variable_retrieve(cfg, catg, "write"))) {
ast_log(LOG_WARNING, "Parameter 'write' is deprecated for category %s. Please use 'writesql' instead.\n", catg);
ast_copy_string((*query)->sql_write, tmp, sizeof((*query)->sql_write));
(*query)->sql_write = ast_strdup(tmp);
}
if (!ast_strlen_zero((*query)->sql_write) && ast_strlen_zero((*query)->writehandle[0])) {
ast_free(*query);
free_acf_query(*query);
*query = NULL;
ast_log(LOG_ERROR, "There is SQL, but no ODBC class to be used for writing: %s\n", catg);
return EINVAL;
}
if ((tmp = ast_variable_retrieve(cfg, catg, "insertsql"))) {
ast_copy_string((*query)->sql_insert, tmp, sizeof((*query)->sql_insert));
(*query)->sql_insert = ast_strdup(tmp);
}
/* Allow escaping of embedded commas in fields to be turned off */
@@ -946,13 +963,12 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
(*query)->acf = ast_calloc(1, sizeof(struct ast_custom_function));
if (! (*query)->acf) {
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
if (ast_string_field_init((*query)->acf, 128)) {
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
@@ -968,9 +984,7 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
}
if (!((*query)->acf->name)) {
ast_string_field_free_memory((*query)->acf);
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
@@ -982,10 +996,7 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
}
if (ast_strlen_zero((*query)->acf->syntax)) {
ast_free((char *)(*query)->acf->name);
ast_string_field_free_memory((*query)->acf);
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
@@ -997,10 +1008,7 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
}
if (ast_strlen_zero((*query)->acf->synopsis)) {
ast_free((char *)(*query)->acf->name);
ast_string_field_free_memory((*query)->acf);
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
@@ -1042,19 +1050,14 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
ast_strlen_zero((*query)->sql_insert) ? "" : (*query)->sql_insert,
ast_strlen_zero((*query)->sql_insert) ? "" : "\n");
} else {
ast_string_field_free_memory((*query)->acf);
ast_free((char *)(*query)->acf->name);
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
ast_log(LOG_WARNING, "Section '%s' was found, but there was no SQL to execute. Ignoring.\n", catg);
return EINVAL;
}
if (ast_strlen_zero((*query)->acf->desc)) {
ast_string_field_free_memory((*query)->acf);
ast_free((char *)(*query)->acf->name);
ast_free((*query)->acf);
ast_free(*query);
free_acf_query(*query);
*query = NULL;
return ENOMEM;
}
@@ -1074,20 +1077,6 @@ static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_qu
return 0;
}
static int free_acf_query(struct acf_odbc_query *query)
{
if (query) {
if (query->acf) {
if (query->acf->name)
ast_free((char *)query->acf->name);
ast_string_field_free_memory(query->acf);
ast_free(query->acf);
}
ast_free(query);
}
return 0;
}
static char *cli_odbc_read(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
AST_DECLARE_APP_ARGS(args,