memcpy in RAND_bytes

[krishnamurthy santhanam]

Hi,

memcpy is not working for the RAND_bytes. could anyone help me to resolve
the issue.

blf.c

#include<stdio.h>
#include"scatype.h"
#include<stdlib.h>
#define BF_DEFAULT_KEY_SIZE 128
typedef struct {
        unsigned long  length;
        unsigned char   dsc_type;
        unsigned char   dsc_class;
        char            *str;
    } STR_DESCRIPTOR;
/* functions have to be external */
extern blfGenKey();
int main() {
printf("in main\n");
/* call function from shared library */
STR_DESCRIPTOR key;
key.str = malloc(1024);
blfGenKey(&key);
printf("digest - |%s|\n",key.str);
free (key.str);
return 0;
}


blowfish.c

int blfGenKey(STR_DESCRIPTOR *key)
{
    unsigned char    keyData[BF_DEFAULT_KEY_SIZE];
    int status = FAILURE;
    printf("\n entered\n");
    printf("%d\n",BF_DEFAULT_KEY_SIZE);
    int i;
    printf("\n entered loop\n");
    if(!RAND_bytes(keyData,BF_DEFAULT_KEY_SIZE))
        memcpy(key->str,keyData,BF_DEFAULT_KEY_SIZE);
        key->length = BF_DEFAULT_KEY_SIZE;

        printf("key=\n%s\n",key->str);
        status = SUCCESS;
        printf("\n%d\n",key->length);

output:
in main

 entered
128
entered loop
key=  <--------------null value
128
status=0
digest - ||   <------key is not printing

Any help would be greatly appreciable.

kris