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WL #1510 "Implement support for "commercial" binaries on handshake",

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client library:
- implemented 'check_license' function


include/errmsg.h:
  WL #1510: new error code
include/mysql_version.h.in:
  WL #1510: fallback define for LICENSE
libmysql/errmsg.c:
  WL #1510: error message to print in case when client and server license 
  mismatch.
libmysql/libmysql.c:
  WL#1510: implementation of 'check_license' function
sql/set_var.cc:
  removed unused variable 'license'
This commit is contained in:
unknown
2004-03-17 20:04:50 +03:00
parent d730756649
commit c6a0599642
5 changed files with 67 additions and 6 deletions
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54
libmysql/libmysql.c
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@ -1612,6 +1612,56 @@ mysql_connect(MYSQL *mysql,const char *host,
#endif
#ifdef CHECK_LICENSE
/*
Check server side variable 'license'.
If the variable does not exist or does not contain 'Commercial',
we're talking to non-commercial server from commercial client.
SYNOPSIS
check_license()
RETURN VALUE
0 success
!0 network error or the server is not commercial.
Error code is saved in mysql->net.last_errno.
*/
static int check_license(MYSQL *mysql)
{
MYSQL_ROW row;
MYSQL_RES *res;
NET *net= &mysql->net;
static const char query[]= "SELECT @@license";
static const char required_license[]= LICENSE;
if (mysql_real_query(mysql, query, sizeof(query)-1))
{
if (net->last_errno == ER_UNKNOWN_SYSTEM_VARIABLE)
{
net->last_errno= CR_WRONG_LICENSE;
sprintf(net->last_error, ER(net->last_errno), required_license);
}
return 1;
}
if (!(res= mysql_use_result(mysql)))
return 1;
row= mysql_fetch_row(res);
/*
If no rows in result set, or column value is NULL (none of these
two is ever true for server variables now), or column value
mismatch, set wrong license error.
*/
if (!net->last_errno &&
(!row || !row[0] ||
strncmp(row[0], required_license, sizeof(required_license))))
{
net->last_errno= CR_WRONG_LICENSE;
sprintf(net->last_error, ER(net->last_errno), required_license);
}
mysql_free_result(res);
return net->last_errno;
}
#endif /* CHECK_LICENSE */
/*
The following union is used to force a struct to be double allgined.
This is to avoid warings with gethostname_r() on Linux itanium systems
@ -2048,6 +2098,10 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
net->compress=1;
if (mysql->options.max_allowed_packet)
net->max_packet_size= mysql->options.max_allowed_packet;
#ifdef CHECK_LICENSE
if (check_license(mysql))
goto error;
#endif
if (db && mysql_select_db(mysql,db))
goto error;
if (mysql->options.init_command)