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Authenticator

/* Prefix auth_ is reserved */
#include <mailutils/auth.h>

There are many ways to authenticate to a server. To be flexible the authentication process is provided by two objects auth_t and ticket_t. The auth_t can implement different protocol like APOP, MD5-AUTH, One Time Passwd etc .. By default if a mailbox does not understand or know how to authenticate it falls back to user/passwd authentication. The ticket_t is a way for Mailboxes and Mailers provide a way to authenticate when the URL does not contain enough information. The default action is to call the function auth_authenticate which will get the user and passwd if not set, this function can be overridden by a custom method.

Function: int auth_create (auth_t *pauth, void *owner)

Function: void auth_destroy (auth_t *pauth, void *owner)

Function: int auth_prologue (auth_t auth)

Function: int auth_authenticate (auth_t auth, char **user, char **passwd)

Function: int auth_epilogue (auth_t auth)

A simple example of an authenticate function:

#include <mailutils/auth.h>
#include <stdio.h>
#include <string.h>

int
my_authenticate (auth_t auth, char **user, char **passwd)
{
  char u[128] = "";
  char p[128] = "";

  /* prompt the user name */
  printf ("User: ");
  fflush (stdout);
  fgets (u, sizeof (u), stdin);
  u[strlen (u) - 1] = '\0'; /* nuke the trailing NL */

  /* prompt the passwd */
  printf ("Passwd: "); fflush (stdout);
  echo_off ();
  fgets (p, sizeof(p), stdin);
  echo_on ();
  p[strlen (p) - 1] = '\0';

  /* duplicate */
  *user = strdup (u);
  *passwd = strdup (p);
  return 0;
}

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