To provide an easy way to crete a ticket_t from

        a file, one can create a wicket_t and fetch ticket_t's
        for different users to set on the authority.
        {
          wicket_t (&wicket, "/home/alain/.tickets");
          wicket_get_ticket (wicket, &ticket, "alain", NULL);
          authority_set_ticket (wicket, ticket);
        }

        * include/mailutils/auth.h: Added wicket_t prototypes
        functions: wicket_create(), wicket_destroy,
        wicket_get_ticket().  New prototype ticket_set_data ()
        ticket_get_data () ticket_set_destroy (), ticket_set_owner();
        * mailbox/wicket.c: New file, implements wicket_t.
        * mailbox/ticket.c: New file, implements ticket_t.
        * mailbox/auth.c: Implements only authority_t.
        * mailbox/Makefile.am: Update for ticket.c and wicket.c

+2001-11-14  Alain Magloire
+
+	To provide an easy way to crete a ticket_t from
+	a file, one can create a wicket_t and fetch ticket_t's
+	for different users to set on the authority.
+	{
+	  wicket_t (&wicket, "/home/alain/.tickets");
+	  wicket_get_ticket (wicket, &ticket, "alain", NULL);
+	  authority_set_ticket (wicket, ticket);
+	}
+
+	* include/mailutils/auth.h: Added wicket_t prototypes
+	functions: wicket_create(), wicket_destroy,
+	wicket_get_ticket().  New prototype ticket_set_data ()
+	ticket_get_data () ticket_set_destroy (), ticket_set_owner();
+	* mailbox/wicket.c: New file, implements wicket_t.
+	* mailbox/ticket.c: New file, implements ticket_t.
+	* mailbox/auth.c: Implements only authority_t.
+	* mailbox/Makefile.am: Update for ticket.c and wicket.c
+
 2001-11-14  Sergey Poznyakoff
 
 	* comsat/action.c: Expand \n only for `echo'.

 /* GNU mailutils - a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Library Public License as published by
@@ -38,13 +38,14 @@ typedef struct _ticket *ticket_t;
 
 extern int  ticket_create          __P ((ticket_t *, void *owner));
 extern void ticket_destroy         __P ((ticket_t *, void *owner));
-extern void * ticket_get_owner     __P ((ticket_t));
+extern int  ticket_set_destroy     __P ((ticket_t, void (*)
+					 __P ((ticket_t)), void *owner));
+extern void *ticket_get_owner      __P ((ticket_t));
 
 extern int ticket_set_pop          __P ((ticket_t, int (*_pop) __P ((ticket_t, const char *, char **)), void *));
 extern int ticket_pop              __P ((ticket_t, const char *, char **));
-
-extern int ticket_get_type         __P ((ticket_t, char *, size_t, size_t *));
-extern int ticket_set_type         __P ((ticket_t, char *));
+extern int ticket_set_data         __P ((ticket_t, void *, void *owner));
+extern int ticket_get_data         __P ((ticket_t, void **));
 
 struct _authority;
 typedef struct _authority *authority_t;
@@ -57,6 +58,18 @@ extern int authority_get_ticket       __P ((authority_t, ticket_t *));
 extern int authority_authenticate     __P ((authority_t));
 extern int authority_set_authenticate __P ((authority_t, int (*_authenticate) __P ((authority_t)), void *));
 
+struct _wicket;
+typedef struct _wicket *wicket_t;
+
+extern int wicket_create       __P ((wicket_t *, const char *));
+extern int wicket_destroy      __P ((wicket_t *));
+extern int wicket_set_filename __P ((wicket_t, const char *));
+extern int wicket_get_filename __P ((wicket_t, char *, size_t, size_t *));
+extern int wicket_set_ticket   __P ((wicket_t, int (*)
+				     __P ((wicket_t, const char *,
+					   const char *, ticket_t *))));
+extern int wicket_get_ticket   __P ((wicket_t, ticket_t *, const char *, const char *));
+
 #ifdef __cplusplus
 }
 #endif

@@ -56,6 +56,7 @@ sendmail.c \
 smtp.c \
 stream.c \
 tcp.c \
+ticket.c \
 url.c \
 url_file.c \
 url_imap.c \
@@ -64,6 +65,7 @@ url_mh.c \
 url_path.c \
 url_pop.c \
 url_sendmail.c \
-url_smtp.c
+url_smtp.c \
+wicket.c
 
 libmailbox_la_LDFLAGS = -version-info 0:0:0

@@ -22,134 +22,9 @@
 #include <sys/types.h>
 #include <string.h>
 #include <stdlib.h>
-#include <stdio.h>
-#include <termios.h>
 
-#include <mailutils/mailbox.h>
-#include <mailutils/mutil.h>
 #include <auth0.h>
 
-static void
-echo_off(struct termios *stored_settings)
-{
-  struct termios new_settings;
-  tcgetattr (0, stored_settings);
-  new_settings = *stored_settings;
-  new_settings.c_lflag &= (~ECHO);
-  tcsetattr (0, TCSANOW, &new_settings);
-}
-
-static void
-echo_on(struct termios *stored_settings)
-{
-  tcsetattr (0, TCSANOW, stored_settings);
-}
-
-int
-ticket_create (ticket_t *pticket, void *owner)
-{
-  ticket_t ticket;
-  if (pticket == NULL)
-    return EINVAL;
-  ticket = calloc (1, sizeof (*ticket));
-  if (ticket == NULL)
-    return ENOMEM;
-  ticket->owner = owner;
-  *pticket = ticket;
-  return 0;
-}
-
-void
-ticket_destroy (ticket_t *pticket, void *owner)
-{
-  if (pticket && *pticket)
-    {
-      ticket_t ticket = *pticket;
-      if (ticket->owner == owner)
-	{
-	  if (ticket->type)
-	    free (ticket->type);
-	  free (ticket);
-	}
-      *pticket = NULL;
-    }
-}
-
-void *
-ticket_get_owner (ticket_t ticket)
-{
-  return (ticket) ? ticket->owner : NULL;
-}
-
-int
-ticket_set_pop (ticket_t ticket,
-		int (*_pop) __P ((ticket_t, const char *, char **)),
-		void *owner)
-{
-  if (ticket == NULL)
-    return EINVAL;
-  if (ticket->owner != owner)
-    return EACCES;
-  ticket->_pop = _pop;
-  return 0;
-}
-
-int
-ticket_pop (ticket_t ticket, const char *challenge, char **parg)
-{
-  if (ticket == NULL || parg == NULL)
-    return EINVAL;
-  if (ticket->_pop)
-    return ticket->_pop (ticket, challenge, parg);
-  else
-    {
-      char arg[256];
-      struct termios stored_settings;
-      int echo = 1;
-
-      /* Being smart if we see "Passwd" and turning off echo.  */
-      if (strstr (challenge, "ass") != NULL
-	  || strstr (challenge, "ASS") != NULL)
-	echo = 0;
-      printf ("%s", challenge);
-      fflush (stdout);
-      if (!echo)
-	echo_off (&stored_settings);
-      fgets (arg, sizeof (arg), stdin);
-      if (!echo)
-	{
-	  echo_on (&stored_settings);
-	  putchar ('\n');
-	  fflush (stdout);
-	}
-      arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line.  */
-      *parg = strdup (arg);
-    }
-  return 0;
-}
-
-int
-ticket_get_type (ticket_t ticket, char *type, size_t len, size_t *pwriten)
-{
-  size_t n;
-  if (ticket == NULL || type == NULL)
-    return EINVAL;
-  n = util_cpystr (type, ticket->type, len);
-  if (pwriten)
-    *pwriten = n;
-  return 0;
-}
-
-int
-ticket_set_type (ticket_t ticket, char *type)
-{
-  if (ticket == NULL)
-    return EINVAL;
-  if (ticket->type)
-    free (ticket->type);
-  ticket->type = strdup ((type) ? type : "");
-  return 0;
-}
 
 int
 authority_create (authority_t *pauthority, ticket_t ticket, void *owner)
@@ -213,7 +88,6 @@ authority_get_ticket (authority_t authority, ticket_t *pticket)
   return 0;
 }
 
-
 int
 authority_authenticate (authority_t authority)
 {

 /* GNU mailutils - a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Library Public License as published by
@@ -41,8 +41,9 @@ struct _ticket
 {
   void *owner;
   char *challenge;
-  char *type;
+  void *data;
   int  (*_pop)      __P ((ticket_t, const char *challenge, char **));
+  void (*_destroy)  __P ((ticket_t));
 };
 
 struct _authority
@@ -52,6 +53,12 @@ struct _authority
   int (*_authenticate) __P ((authority_t));
 };
 
+struct _wicket
+{
+  char *filename;
+  int (*_get_ticket) __P ((wicket_t, const char *, const char *, ticket_t *));
+};
+
 
 #ifdef __cplusplus
 }

+/* GNU mailutils - a suite of utilities for electronic mail
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Library Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <errno.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <termios.h>
+
+#include <mailutils/mutil.h>
+#include <auth0.h>
+
+static void
+echo_off(struct termios *stored_settings)
+{
+  struct termios new_settings;
+  tcgetattr (0, stored_settings);
+  new_settings = *stored_settings;
+  new_settings.c_lflag &= (~ECHO);
+  tcsetattr (0, TCSANOW, &new_settings);
+}
+
+static void
+echo_on(struct termios *stored_settings)
+{
+  tcsetattr (0, TCSANOW, stored_settings);
+}
+
+int
+ticket_create (ticket_t *pticket, void *owner)
+{
+  ticket_t ticket;
+  if (pticket == NULL)
+    return EINVAL;
+  ticket = calloc (1, sizeof (*ticket));
+  if (ticket == NULL)
+    return ENOMEM;
+  ticket->owner = owner;
+  *pticket = ticket;
+  return 0;
+}
+
+void
+ticket_destroy (ticket_t *pticket, void *owner)
+{
+  if (pticket && *pticket)
+    {
+      ticket_t ticket = *pticket;
+      if (ticket->owner == owner)
+	{
+	  if (ticket->_destroy)
+	    ticket->_destroy (ticket);
+	  if (ticket->challenge)
+	    free (ticket->challenge);
+	  free (ticket);
+	}
+      *pticket = NULL;
+    }
+}
+
+int
+ticket_set_destroy (ticket_t ticket, void (*_destroy) __P ((ticket_t)),
+		    void *owner)
+{
+  if (ticket == NULL)
+    return EINVAL;
+  if (ticket->owner != owner)
+    return EACCES;
+  ticket->_destroy = _destroy;
+  return 0;
+}
+
+void *
+ticket_get_owner (ticket_t ticket)
+{
+  return (ticket) ? ticket->owner : NULL;
+}
+
+int
+ticket_set_pop (ticket_t ticket,
+		int (*_pop) __P ((ticket_t, const char *, char **)),
+		void *owner)
+{
+  if (ticket == NULL)
+    return EINVAL;
+  if (ticket->owner != owner)
+    return EACCES;
+  ticket->_pop = _pop;
+  return 0;
+}
+
+int
+ticket_pop (ticket_t ticket, const char *challenge, char **parg)
+{
+  if (ticket == NULL || parg == NULL)
+    return EINVAL;
+  if (ticket->_pop)
+    return ticket->_pop (ticket, challenge, parg);
+  else
+    {
+      char arg[256];
+      struct termios stored_settings;
+      int echo = 1;
+
+      /* Being smart if we see "Passwd" and turning off echo.  */
+      if (strstr (challenge, "ass") != NULL
+	  || strstr (challenge, "ASS") != NULL)
+	echo = 0;
+      printf ("%s", challenge);
+      fflush (stdout);
+      if (!echo)
+	echo_off (&stored_settings);
+      fgets (arg, sizeof (arg), stdin);
+      if (!echo)
+	{
+	  echo_on (&stored_settings);
+	  putchar ('\n');
+	  fflush (stdout);
+	}
+      arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line.  */
+      *parg = strdup (arg);
+    }
+  return 0;
+}
+
+int
+ticket_get_data (ticket_t ticket, void **data)
+{
+  if (ticket == NULL || data == NULL)
+    return EINVAL;
+  *data = ticket->data;
+  return 0;
+}
+
+int
+ticket_set_data (ticket_t ticket, void *data, void *owner)
+{
+  if (ticket == NULL)
+    return EINVAL;
+  if (ticket->owner != owner)
+    return EACCES;
+  ticket->data = data;
+  return 0;
+}

+/* GNU mailutils - a suite of utilities for electronic mail
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Library Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <errno.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include <auth0.h>
+
+struct myticket_data
+{
+  char *user;
+  char *pass;
+};
+
+static char * stripwhite __P ((char *));
+static int myticket_create __P ((ticket_t *, const char *, const char *));
+static void myticket_destroy __P ((ticket_t));
+static int _get_ticket __P ((ticket_t *, const char *, const char *));
+static int myticket_pop __P ((ticket_t, const char *, char **));
+
+int
+wicket_create (wicket_t *pwicket, const char *filename)
+{
+  if (pwicket == NULL)
+    return EINVAL;
+
+  *pwicket = calloc (1, sizeof (**pwicket));
+  if (*pwicket == NULL)
+    return ENOMEM;
+
+  if (filename)
+    (*pwicket)->filename = strdup (filename);
+  return 0;
+}
+
+int
+wicket_destroy (wicket_t *pwicket)
+{
+  if (pwicket && *pwicket)
+    {
+      wicket_t wicket = *pwicket;
+      if (wicket->filename)
+	free (wicket->filename);
+      free (wicket);
+      *pwicket = NULL;
+    }
+}
+
+int
+wicket_get_filename (wicket_t wicket, char *filename, size_t len,
+		     size_t *pwriten)
+{
+ size_t n;
+ if (wicket == NULL)
+   return EINVAL;
+  n = util_cpystr (filename, wicket->filename, len);
+  if (pwriten)
+    *pwriten = n;
+  return 0;
+}
+
+int
+wicket_set_filename (wicket_t wicket, const char *filename)
+{
+  if (wicket == NULL)
+    return EINVAL;
+
+  if (wicket->filename)
+    free (wicket->filename);
+
+  wicket->filename = (filename) ? strdup (filename) : NULL;
+  return 0;
+}
+
+int
+wicket_set_ticket (wicket_t wicket, int _get_ticket
+		   __P ((wicket_t, const char *, const char *, ticket_t *)))
+{
+  if (wicket == NULL)
+    return EINVAL;
+
+  wicket->_get_ticket = _get_ticket;
+  return 0;
+}
+
+int
+wicket_get_ticket (wicket_t wicket, ticket_t *pticket, const char *user,
+		   const char *type)
+{
+  if (wicket == NULL || pticket == NULL || user == NULL)
+    return EINVAL;
+
+  if (wicket->filename == NULL)
+    return EINVAL;
+
+  if (wicket->_get_ticket)
+    return wicket->_get_ticket (wicket, user, type, pticket);
+  return _get_ticket (pticket, wicket->filename, user);
+}
+
+/* FIXME: This is a proof of concept ... write a more intelligent parser.  */
+static int
+_get_ticket (ticket_t *pticket, const char *filename, const char *user)
+{
+  FILE *fp;
+  char *buf;
+  size_t buflen;
+  int status = ENOENT;
+
+  fp = fopen (filename, "r");
+  if (fp == NULL)
+    return errno;
+
+  buflen = 128;
+  buf = malloc (buflen);
+  if (buf)
+    {
+      char *ptr = buf;
+      while (fgets (ptr, buflen, fp) != NULL)
+	{
+	  size_t len = strlen (buf);
+	  char *sep;
+	  /* Check if a complete line.  */
+	  if (len && buf[len - 1] != '\n')
+	    {
+	      char *tmp =  realloc (buf, 2*buflen);
+	      if (tmp == NULL)
+		{
+		  status = ENOMEM;
+		  break;
+		}
+	      buf = tmp;
+	      ptr = buf + len;
+	      continue;
+	    }
+	  else
+	    ptr = buf;
+
+	  /* Comments.  */
+	  if (*ptr == '#')
+	    continue;
+
+	  /* Skip leading spaces.  */
+	  while (isspace (*ptr))
+	    {
+	      ptr++;
+	      len--;
+	    }
+
+	  /* user:passwd.  Separator maybe ": \t" */
+	  if (len && ((sep = memchr (ptr, ':', len)) != NULL
+			 || (sep = memchr (ptr, ' ', len)) != NULL
+			 || (sep = memchr (ptr, '\t', len)) != NULL))
+	    {
+	      *sep++ = '\0';
+	      ptr = stripwhite (ptr);
+	      if (strcmp (ptr, user) == 0)
+		{
+		  sep = stripwhite (sep);
+		  status = myticket_create (pticket, ptr, sep);
+		  break;
+		}
+	    }
+	}
+    }
+  else
+    status = ENOMEM;
+
+  if (buf)
+    free (buf);
+  fclose (fp);
+  return status;
+}
+
+static int
+myticket_create (ticket_t *pticket, const char *user, const char *pass)
+{
+  struct myticket_data *mdata;
+  int status = ticket_create (pticket, NULL);
+  if (status != 0)
+    return status;
+
+  mdata = calloc (1, sizeof *mdata);
+  if (mdata == NULL)
+    ticket_destroy (pticket, NULL);
+  ticket_set_destroy (*pticket, myticket_destroy, NULL);
+  ticket_set_pop (*pticket, myticket_pop, NULL);
+  ticket_set_data (*pticket, mdata, NULL);
+  if ((mdata->user = strdup (user)) == NULL
+       || (mdata->pass = strdup (pass)) == NULL)
+    {
+      status = ENOMEM;
+      ticket_destroy (pticket, NULL);
+    }
+  return status;
+}
+
+static int
+myticket_pop (ticket_t ticket, const char *challenge, char **parg)
+{
+  struct myticket_data *mdata = NULL;
+  ticket_get_data (ticket, (void **)&mdata);
+  if (challenge && (strstr (challenge, "ass") != NULL
+		    || strstr (challenge, "ASS") != NULL))
+    *parg = strdup (mdata->pass);
+  else
+    *parg = strdup (mdata->user);
+  return 0;
+}
+
+static void
+myticket_destroy (ticket_t ticket)
+{
+  struct myticket_data *mdata = NULL;
+  ticket_get_data (ticket, (void **)&mdata);
+  if (mdata)
+    {
+      if (mdata->user)
+	free (mdata->user);
+      if (mdata->pass)
+	free (mdata->pass);
+      free (mdata);
+    }
+}
+
+/* Strip whitespace from the start and end of STRING.  Return a pointer
+   into STRING. */
+static char *
+stripwhite (char *string)
+{
+  register char *s, *t;
+
+  for (s = string; isspace (*s); s++)
+    ;
+
+  if (*s == 0)
+    return (s);
+
+  t = s + strlen (s) - 1;
+  while (t > s && isspace (*t))
+    t--;
+  *++t = '\0';
+
+  return s;
+}