env.h

#ifndef ENV_D
#define ENV_D

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#include "mx.h"

struct usermap {
    char *pat;
    char *map;
    struct usermap *next;
};

struct spam {
    enum {spACCEPT,spFILE,spBOUNCE} action;
    char *folder;	/* spFILE folder to write to */
    char *reason;	/* reason to reject */
};

struct env {
    struct in_addr *local_if;	/* ip addresses assigned to the local machine */
    char *localhost;		/* name of localhost */
    unsigned long largest;	/* longest message we accept */
    float max_loadavg;		/* if la > this, don't accept mail */
    int   max_clients;		/* max# of connections allowed */
    int   max_hops;		/* max# of received-by: headers */
    int   timeout;		/* how long to wait for input */
    char  bmode;
    uid_t sender;		/* user who called postoffice */
    int   delay;		/* greylist delay */
    int   qreturn;		/* how long to leave mail in the queue? */
    char *relay_host;		/* mail relay */
    long  minfree;		/* don't run if the spool directory has less
				 * than this many bytes free */
    int   submission_port;	/* secondary smtp server port (if any) */
    struct spam spam;		/* what to do with spam */
    struct spam rej;		/*  "  "   "   "  mail from forbidden sites */
    struct usermap *usermap;	/* map usernames (personal aliases) */
    struct iplist trusted;	/* trusted hosts */
    unsigned int   nodaemon:1;	/* refuse MAIL FROM:<> */
    unsigned int   verbose:1;	/* be chattery */
    unsigned int   paranoid:1;	/* don't accept email from clients we can't
				 * resolve */
    unsigned int   doublecheck:1;/* resolve caller IP->name, then name->IP */
    unsigned int   relay_ok:1;	/* Is it okay to mail to remote machines? */
    unsigned int   verify_from:1;/* verify host of MAIL FROM:<user@host> */
    unsigned int   debug:1;	/* enable debugging commands */
    unsigned int   forged:1;	/* from address set by -f */
    unsigned int   trawl:1;	/* scrape headers for recipients (pine sucks) */
    unsigned int   checkhelo:1;	/* verify HELO/EHLO header */
    unsigned int   localmx:1;	/* if I am the mx for a client, that
				 * client can relay.  DANGEROUS!  */
    unsigned int   auditing:1;	/* session logging */
    unsigned int   forward_all:1;/* forward unknown addresses to relay_host */
    unsigned int   escape_from:1;/* add a '>' prefix to lines beginning with */
				 /* 'From ' */
    unsigned int   immediate:1;	/* try to run the queue immediately after */
				/* someone sends mail */
    unsigned int   mxpool:1;	/* forward mail to best mx for domain */
    unsigned int   safe:1;	/* AUTH USER bypasses milter checks */
    unsigned int   greylist_from:1; /* greylist from addresses, not IP */
} ;

typedef struct env ENV;

#ifndef HAVE_SETPROCTITLE
extern char *argv0;		/* argv0, for status scribbling */
extern int   szargv0;		/* number of bytes to scribble on */
#endif

char *mapfd(int, size_t*);

void set_option(int, char *, ENV*);
int  configfile(int, char *, ENV*);
void message(FILE *f, int code, char *fmt, ...);

#endif/*END_D*/