openssl command line to decrypt aes ctr 128 - c

Question

I'm using the following working code to decrypt a file:
#include <openssl/aes.h>
#include <stdio.h>
#include <string.h>
struct ctr_state {
unsigned char ivec[16];
unsigned int num;
unsigned char ecount[16];
};
FILE *fp;
FILE *rp;
FILE *op;
size_t count;
char * buffer;
AES_KEY key;
int bytes_read, bytes_written;
unsigned char indata[AES_BLOCK_SIZE];
unsigned char outdata[AES_BLOCK_SIZE];
unsigned char ckey[] = "1234567890123456";
unsigned char iv[8] = {0};
struct ctr_state state;
void init_ctr(struct ctr_state *state, const unsigned char iv[8]){
state->num = 0;
memset(state->ecount, 0, 16);
memset(state->ivec + 8, 0, 8);
memcpy(state->ivec, iv, 8);
}
void decrypt(){
//Opening files where text cipher text is read and the plaintext recovered
rp=fopen("c:\\temp\\decrypted.mp3","wb");
op=fopen("c:\\temp\\encrypted.mp3","rb");
if (rp==NULL) {fputs ("File error",stderr); return;}
if (op==NULL) {fputs ("File error",stderr); return;}
//Initializing the encryption KEY
AES_set_encrypt_key(ckey, 128, &key);
init_ctr(&state, iv);//Counter call
//Encrypting Blocks of 16 bytes and writing the output.txt with ciphertext
while (1) {
bytes_read = fread(indata, 1, AES_BLOCK_SIZE, op);
AES_ctr128_encrypt(indata, outdata, bytes_read, &key, state.ivec, state.ecount, &state.num);
bytes_written = fwrite(outdata, 1, bytes_read, rp);
if (bytes_read < AES_BLOCK_SIZE)
break;
}
fclose (rp);
fclose (op);
}
int main(int argc, char *argv[]){
decrypt();
return 0;
}
Is it possible to do the same thing using the openssl command line?
AFAIK, there's no -aes-128-ctr cipher but is there any equivalent in openssl?

Answer 1

No version of the openssl(1) command line tool that I've checked appears to support counter mode for any cipher.