[firebird-support] UDF memory allocation for result string in Linux

[ma_golyo]

Hi!

When I run my UDF (udf_op), I get an error : "Bad written UDF detected: pointer 
returned in FREE_IT function was not allocated by ib_util_malloc"

I use ib_util_malloc in my Win version, no problem there. What should I use in 
Linux version? Currently memory allocated with malloc.



SQL:
DECLARE EXTERNAL FUNCTION UDF_OP
RETURNS CSTRING(10) FREE_IT
ENTRY_POINT 'udf_op' MODULE_NAME 'UDF3s';



C:

char * udf_op();

char * udf_op()
{
  char *buffer = (char *)malloc(10);
  strncpy(buffer, "Linux", 6);
  return buffer;
}



C compiled with : 
gcc -c -O -fpic UDF3s.c
ld -G UDF3s.o -lm -lc -o UDF3s.so



Thank You!