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+/* Copyright 1993-95 by Carl Harris, Jr.
+ * All rights reserved
+ *
+ * Distribute freely, except: don't remove my name from the source or
+ * documentation (don't take credit for my work), mark your changes (don't
+ * get me blamed for your possible bugs), don't alter or remove this
+ * notice.  May be sold if buildable source is provided to buyer.  No
+ * warrantee of any kind, express or implied, is included with this
+ * software; use at your own risk, responsibility for damages (if any) to
+ * anyone resulting from the use of this software rests entirely with the
+ * user.
+ *
+ * Send bug reports, bug fixes, enhancements, requests, flames, etc., and
+ * I'll try to keep a version up to date.  I can be reached as follows:
+ * Carl Harris <ceharris@mal.com>
+ */
+
+
+/***********************************************************************
+  module:       popclient.h
+  project:      popclient
+  programmer:   Carl Harris, ceharris@mal.com
+  description:  global constant, type, and variable definitions.
+
+  $Log: fetchmail.h,v $
+  Revision 1.1  1996/06/24 18:14:08  esr
+  Initial revision
+
+  Revision 1.6  1995/09/07 22:37:35  ceharris
+  Preparation for 3.0b4 release.
+
+  Revision 1.5  1995/08/14 18:36:44  ceharris
+  Patches to support POP3's LAST command.
+  Final revisions for beta3 release.
+
+  Revision 1.4  1995/08/10 00:32:40  ceharris
+  Preparation for 3.0b3 beta release:
+  -	added code for --kill/--keep, --limit, --protocol, --flush
+  	options; --pop2 and --pop3 options now obsoleted by --protocol.
+  - 	added support for APOP authentication, including --with-APOP
+  	argument for configure.
+  -	provisional and broken support for RPOP
+  -	added buffering to SockGets and SockRead functions.
+  -	fixed problem of command-line options not being correctly
+  	carried into the merged options record.
+
+  Revision 1.3  1995/08/09 01:32:57  ceharris
+  Version 3.0 beta 2 release.
+  Added
+  -	.poprc functionality
+  -	GNU long options
+  -	multiple servers on the command line.
+  Fixed
+  -	Passwords showing up in ps output.
+
+  Revision 1.2  1995/08/08 01:01:27  ceharris
+  Added GNU-style long options processing.
+  Fixed password in 'ps' output problem.
+  Fixed various RCS tag blunders.
+  Integrated .poprc parser, lexer, etc into Makefile processing.
+
+ ***********************************************************************/
+
+
+
+/* definitions for buffer sizes -- somewhat arbitrary */
+#define		POPBUFSIZE	512	/* per RFC 937 */
+#define		MSGBUFSIZE	1024   	/* size of message read buffer */
+#define		HOSTLEN		128	/* max hostname length */
+#define		USERIDLEN	32	/* max user-length */
+#define		PASSWORDLEN	MAX_PASSWORD_LENGTH
+#define		FOLDERLEN	256     /* max folder name length */
+#define		DIGESTLEN	33	/* length of MD5 digest */
+
+/* exit code values */
+#define		PS_SUCCESS	0	/* successful receipt of messages */
+#define		PS_NOMAIL       1	/* no mail available */
+#define		PS_SOCKET	2	/* socket I/O woes */
+#define		PS_AUTHFAIL	3	/* user authorization failed */
+#define		PS_PROTOCOL	4	/* protocol violation */
+#define		PS_SYNTAX	5	/* command-line syntax error */
+#define		PS_IOERR	6	/* local folder I/O woes */
+#define		PS_ERROR	7	/* some kind of POP3 error condition */
+#define		PS_UNDEFINED	9	/* something I hadn't thought of */
+
+/* output noise level */
+#define         O_SILENT	0	/* mute, max squelch, etc. */
+#define		O_NORMAL	1	/* user-friendly */
+#define		O_VERBOSE	2	/* excessive */
+
+/* output folder type, used in options record */
+#define		OF_SYSMBOX	1	/* use system default mailbox */
+#define		OF_USERMBOX	2	/* use user's specified mailbox */
+#define		OF_STDOUT	3	/* use stdout */
+
+/* Command-line arguments are passed in this structure type */
+struct optrec {
+  int versioninfo;
+  int keep;
+  int verbose;
+  int whichpop;
+  int silent;
+  int limit;
+  int fetchall;
+  int flush;
+  int foldertype;
+  char loginid [USERIDLEN];
+  char *poprcfile;
+  char userid [USERIDLEN];
+  char password [PASSWORDLEN];
+#if defined(HAVE_APOP_SUPPORT)
+  char digest [DIGESTLEN];
+#endif
+  char userfolder [FOLDERLEN];
+  char remotefolder [FOLDERLEN];
+};
+
+
+/* .poprc records are passed in this structure type */
+struct prc_server {
+  char *server;
+  int protocol;
+  char *username;
+  char *password;
+  char *remotefolder;
+  char *localfolder;
+};
+
+
+/* Controls the detail of status/progress messages written to stderr */
+extern int outlevel;     /* see the O_.* constants above */
+
+#ifdef HAVE_PROTOTYPES
+
+/* prototypes for globally callable functions */
+int doPOP2 (char *servername, struct optrec *options); 
+int doPOP3 (char *servername, struct optrec *options);
+
+int parsecmdline (int argc, char **argv, struct optrec *options);
+int setdefaults (struct optrec *options);
+char *getnextserver (int argc, char **argv, int *optind);
+int openuserfolder (struct optrec *options);
+int closeuserfolder (int fd);
+int openmailpipe (struct optrec *options);
+int closemailpipe (int fd);
+char *MD5Digest (char *);
+char *prc_getpathname (struct optrec *cmd_opts, struct optrec *def_opts);
+
+#else
+
+char *getnextserver();
+char *MD5Digest ();
+char *prc_getpathname();
+
+#endif
+