usr/src/cmd/delivermail/dlvrmail.h

/*
**  DLVRMAIL.H -- Global definitions for delivermail.
**
**      Most of these are actually allocated in globals.c
**
**      @(#)dlvrmail.h  1.6     10/18/80
*/


# include "useful.h"

/*
**  Manifest constants.
*/

# define MAXLINE        256     /* maximum line length */
# define MAXNAME        128     /* maximum length of a name */
# define MAXFIELD       2500    /* maximum total length of a header field */
# define MAXPV          15      /* maximum # of parms to mailers */
# define MAXHOP         30      /* maximum value of HopCount */
# define ALIASFILE      "/usr/lib/aliases"      /* location of alias file */


/*
**  Mailer definition structure.
**      Every mailer known to the system is declared in this
**      structure.  It defines the pathname of the mailer, some
**      flags associated with it, and the argument vector to
**      pass to it.  The flags are defined in conf.c
**
**      The argument vector is expanded before actual use.  Every-
**      thing is passed through except for things starting with "$".
**      "$x" defines some interpolation, as described in conf.c
**      "$x" where x is unknown expands to "x", so use "$$" to get "$".
*/

struct mailer
{
        char    *m_mailer;      /* pathname of the mailer to use */
        short   m_flags;        /* status flags, see below */
        short   m_badstat;      /* the status code to use on unknown error */
        char    **m_local;      /* list of local names for this host */
        char    *m_argv[MAXPV]; /* template argument vector */
};

# define M_FOPT         0001    /* mailer takes picky -f flag */
# define M_ROPT         0002    /* mailer takes picky -r flag */
# define M_QUIET        0004    /* don't print error on bad status */
# define M_RESTR        0010    /* must be daemon to execute */
# define M_HDR          0020    /* insert From line */
# define M_NOHOST       0040    /* ignore host in comparisons */
# define M_STRIPQ       0100    /* strip quote characters from user/host */

extern struct mailer Mailer[];


/*
**  Address structure.
**      Addresses are stored internally in this structure.
*/

struct address
{
        char            *q_paddr;       /* the printname for the address */
        char            *q_user;        /* user name */
        char            *q_host;        /* host name */
        struct mailer   *q_mailer;      /* mailer to use */
        struct address  *q_next;        /* chain */
        struct address  *q_prev;        /* back pointer */
};

typedef struct address addrq;

/* some other primitives */
# define nxtinq(q)      ((q)->q_next)
# define clearq(q)      (q)->q_next = (q)->q_prev = NULL

extern addrq SendQ;             /* queue of people to send to */
extern addrq AliasQ;            /* queue of people that are aliases */


/*
**  Parse structure.
**      This table drives the parser which determines the network
**      to send the mail to.
*/

struct parsetab
{
        char    p_char;         /* trigger character */
        char    p_mailer;       /* the index of the mailer to call */
        short   p_flags;        /* see below */
        char    *p_arg;         /* extra info needed for some flags */
};

# define P_MAP          0001    /* map p_char -> p_arg[0] */
# define P_HLAST        0002    /* host is last, & right associative */
# define P_ONE          0004    /* can only be one p_char in addr */
# define P_MOVE         0010    /* send untouched to host p_arg */
# define P_USR_UPPER    0020    /* don't map UPPER->lower in user names */
# define P_HST_UPPER    0040    /* don't map UPPER->lower in host names */


/*
**  Global variables.
*/

extern bool     ArpaFmt;        /* if set, message is in arpanet fmt */
extern bool     FromFlag;       /* if set, "From" person is explicit */
extern bool     Debug;          /* if set, debugging info */
extern bool     MailBack;       /* mail back response on error */
extern bool     BerkNet;        /* called from BerkNet */
extern bool     WriteBack;      /* write back response on error */
extern bool     NoAlias;        /* if set, don't do any aliasing */
extern bool     ForceMail;      /* if set, mail even if already got a copy */
extern bool     MeToo;          /* send to the sender also */
extern bool     UseMsgId;       /* put msg-id's in all msgs [conf.c] */
extern bool     IgnrDot;        /* don't let dot end messages */
extern bool     SaveFrom;       /* save leading "From" lines */
extern int      Errors;         /* set if errors */
extern int      ExitStat;       /* exit status code */
extern char     InFileName[];   /* input file name */
extern char     Transcript[];   /* the transcript file name */
extern char     MsgId[];        /* the message id for this message */
extern addrq    From;           /* the person it is from */
extern char     *To;            /* the target person */
extern int      HopCount;       /* hop count */


# include       <sysexits.h>

# define flagset(bits, word)    ((bits) & (word))
# define setstat(s)             { if (ExitStat == EX_OK) ExitStat = s; }