Concatenate two char arrays (for udp client)

Other Hardware Sensors
4

Can this function be more safer than sprintf()?

char * BufferInsertStringValue(char * s,int startingPosition, char * command) {
  int i = 0;
  int stringLength=strlen(s)-1;
  for ( i = 0;i <= stringLength;i++) {
    command[startingPosition + i - 1] = s[i];
     }
  command[startingPosition + i] = '\0';
  return command;
}

where s is the temp array char and comando is the original text string which i want to concatenate with the integer value.
I call this function with:

char * vett;
vett = BufferInsertStringValue(temp, 14, sonar_center);

Do you think it's safer than sprintf function?