*** empty log message ***
This commit is contained in:
jwalz
486
sys/vms/vmsmail.c
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486
sys/vms/vmsmail.c
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@@ -0,0 +1,486 @@
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/* SCCS Id: @(#)vmsmail.c 3.3 1995/06/01 */
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/* Copyright (c) Robert Patrick Rankin, 1991. */
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/* NetHack may be freely redistributed. See license for details. */
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#include "config.h"
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#include "mail.h"
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/* lint supression due to lack of extern.h */
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unsigned long NDECL(init_broadcast_trapping);
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unsigned long NDECL(enable_broadcast_trapping);
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unsigned long NDECL(disable_broadcast_trapping);
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struct mail_info *NDECL(parse_next_broadcast);
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#ifdef MAIL
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#include "wintype.h"
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#include "winprocs.h"
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#include <ctype.h>
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#include <descrip.h>
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#include <errno.h>
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# ifndef __GNUC__
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#include <msgdef.h>
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# else
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# define MSG$_TRMHANGUP 6
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# define MSG$_TRMBRDCST 83
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# endif /*__GNUC__*/
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#include <signal.h>
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/* #include <string.h> */
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# define vms_ok(sts) ((sts)&1)
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static struct mail_info *FDECL(parse_brdcst, (char *));
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static void FDECL(filter_brdcst, (char *));
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static void NDECL(flush_broadcasts);
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static void FDECL(broadcast_ast, (int));
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extern char *FDECL(eos, (char *));
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extern char *FDECL(strstri, (const char *,const char *));
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extern int FDECL(strncmpi, (const char *,const char *,int));
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extern size_t FDECL(strspn, (const char *,const char *));
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#ifndef __DECC
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extern int VDECL(sscanf, (const char *,const char *,...));
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#endif
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extern unsigned long
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smg$create_pasteboard(),
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smg$get_broadcast_message(),
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smg$set_broadcast_trapping(),
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smg$disable_broadcast_trapping();
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extern volatile int broadcasts; /* defining declaration in mail.c */
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static long pasteboard_id = 0; /* SMG's magic cookie */
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/*
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* Mail (et al) overview:
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*
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* When a broadcast is asynchronously captured, a volatile counter
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* ('broadcasts') is incremented. Each player turn, ckmailstatus() polls
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* the counter and calls parse_next_broadcast() if it's positive; this
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* returns some display text, object name, and response command, which is
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* passed to newmail(). Routine newmail() generates a mail-daemon monster
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* who approaches the character, "speaks" the display text, and delivers
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* a scroll of mail pre-named to the object name; the response command is
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* initially appended to the name, so that the object is tagged with both
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* of them; a NUL is inserted to terminate the ordinary name and hide the
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* command. (If the player renames such a scroll, the hidden command will
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* be lost; who cares?) Unrecognized broadcasts result in the mail-daemon
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* arriving and announcing the display text, but no scroll being created.
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* If SHELL is undefined, then all broadcasts are treated as 'other'; since
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* no subproceses are allowed, there'd be no way to respond to the scroll.
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*
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* When a scroll of mail is read by the character, readmail() extracts
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* the hidden command string and uses it for the default when prompting the
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* player for a system command to spawn. The player may enter any command
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* he or she chooses, or just <return> to accept the default or <escape> to
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* avoid executing any command. If the command is "SPAWN", a regular shell
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* escape to DCL is performed; otherwise, the indicated single command is
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* spawned. Either way, NetHack resumes play when the subprocess terminates
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* or explicitly reattaches to its parent.
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*
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* Broadcast parsing:
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*
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* The following broadcast messages are [attempted to be] recognized:
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* text fragment name for scroll default command
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* New mail VMSmail MAIL
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* New ALL-IN-1 MAIL A1mail A1M
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* Software Tools mail STmail MSG [+folder]
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* MM mail MMmail MM
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* WPmail: New mail WPmail OFFICE/MAIL
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* **M400 mail M400mail M400
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* " mail", ^"mail " unknown mail SPAWN
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* " phoning" Phone call PHONE ANSWER
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* talk-daemon...by...foo Talk request TALK[/OLD] foo@bar
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* (node)user - Bitnet noise XYZZY user@node
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* Anything else results in just the message text being passed along, no
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* scroll of mail so consequently no command to execute when scroll read.
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* The user can set up ``$ XYZZY :== SEND'' prior to invoking NetHack if
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* vanilla JNET responses to Bitnet messages are prefered.
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*
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* Static return buffers are used because only one broadcast gets
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* processed at a time, and the essential information in each one is
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* either displayed and discarded or copied into a scroll-of-mail object.
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*
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* The test driver code below can be used to check out potential new
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* entries without rebuilding NetHack itself. CC/DEFINE="TEST_DRIVER"
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* Link it with hacklib.obj or nethack.olb/incl=hacklib (not nethack/lib).
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*/
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static struct mail_info msg; /* parse_*()'s return buffer */
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static char nam_cmd_buf[63], /* maximum onamelth, size of ONAME(object) */
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txt_buf[255+1]; /* same size as used for message buf[] */
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/* try to decipher and categorize broadcast message text
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*/
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static struct mail_info *
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parse_brdcst(buf) /* called by parse_next_broadcast() */
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char *buf; /* input: filtered broadcast text */
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{
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int typ;
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char *txt;
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const char *nam, *cmd;
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# ifdef SHELL /* only parse if spawned commands are enabled */
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register char *p, *q;
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boolean is_jnet_send;
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char cmd_buf[127+1], user[127+1], node[127+1], sentinel;
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/* Check these first; otherwise, their arbitrary text would enable
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easy spoofing of some other message patterns. Unfortunately,
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any home-grown broadcast delivery program poses a similar risk. */
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if (!strncmpi(buf, "reply received", 14)) goto other;
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is_jnet_send = (sscanf(buf, "(%[^)])%s -%c", node, user, &sentinel) == 3);
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if (is_jnet_send) goto jnet_send;
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/* scan the text more or less by brute force */
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if ((q = strstri(buf, " mail")) != 0 || /* all known mail broadcasts */
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!strncmpi(q = buf, "mail ", 5)) { /* unexpected alternative */
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typ = MSG_MAIL;
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p = strstri(q, " from");
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txt = p ? strcat(strcpy(txt_buf, "Mail for you"), p) : (char *) 0;
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if (!strncmpi(buf, "new mail", 8)) {
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/*
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New mail [on node FOO] from [SPAM::]BAR [\"personal_name\"] [\(HH:MM:SS\)]
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*/
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nam = "VMSmail"; /* assume VMSmail */
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cmd = "MAIL";
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if (txt && (p = strrchr(txt, '(')) > txt && /* discard time */
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(--p, strspn(p, "0123456789( :.)") == strlen(p))) *p = '\0';
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} else if (!strncmpi(buf, "new all-in-1", 12)) {
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int i;
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/*
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New ALL-IN-1 MAIL message [on node FOO] from Personal Name \(BAR@SPAM\) [\(DD-MMM-YYYY HH:MM:SS\)]
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*/
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nam = "A1mail";
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cmd = "A1M";
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if (txt && (p = strrchr(txt, '(')) > txt && /* discard date+time */
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sscanf(p-1," (%*d-%*[^-]-%*d %*d:%*d:%d) %c",&i,&sentinel) == 1)
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*--p = '\0';
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} else if (!strncmpi(buf, "software tools", 14)) {
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/*
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Software Tools mail has arrived on FOO from \'BAR\' [in SPAM]
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*/
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nam = "STmail";
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cmd = "MSG";
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if (txt && (p = strstri(p, " in ")) != 0) /* specific folder */
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cmd = strcat(strcpy(cmd_buf, "MSG +"), p + 4);
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} else if (q - 2 >= buf && !strncmpi(q - 2, "mm", 2)) {
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/*
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{MultiNet\ |PMDF\/}MM mail has arrived on FOO from BAR\n
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[Subject: subject_text] (PMDF only)
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*/
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nam = "MMmail"; /* MultiNet's version of MM */
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cmd = "MM"; /*{ perhaps "MM READ"? }*/
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} else if (!strncmpi(buf, "wpmail:", 7)) {
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/*
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WPmail: New mail from BAR. subject_text
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*/
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nam = "WPmail"; /* WordPerfect [sic] Office */
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cmd = "OFFICE/MAIL";
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} else if (!strncmpi(buf, "**m400 mail", 7)) {
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/*
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**M400 mail waiting**
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*/
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nam = "M400mail"; /* Messenger 400 [not seen] */
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cmd = "M400";
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} else {
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/* not recognized, but presumed to be mail */
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nam = "unknown mail";
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cmd = "SPAWN"; /* generic escape back to DCL */
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txt = (char *) 0; /* don't rely on "from" info here */
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}
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if (!txt) txt = strcat(strcpy(txt_buf, "Mail for you: "), buf);
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/*
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: end of mail recognition; now check for call-type interruptions...
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*/
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} else if ((q = strstri(buf, " phoning")) != 0) {
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/*
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BAR is phoning you [on FOO] \(HH:MM:SS\)
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*/
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typ = MSG_CALL;
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nam = "Phone call";
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cmd = "PHONE ANSWER";
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if (!strncmpi(q + 8, " you", 4)) q += (8 + 4), *q = '\0';
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txt = strcat(strcpy(txt_buf, "Do you hear ringing? "), buf);
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} else if ((q = strstri(buf, " talk-daemon")) != 0 ||
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(q = strstri(buf, " talk_daemon")) != 0) {
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/*
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Message from TALK-DAEMON@FOO at HH:MM:SS\n
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Connection request by BAR@SPAM\n
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\[Respond with: TALK[/OLD] BAR@SPAM\]
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*/
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typ = MSG_CALL;
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nam = "Talk request"; /* MultiNet's TALK and/or TALK/OLD */
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cmd = "TALK";
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if ((p = strstri(q, " by ")) != 0) {
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txt = strcat(strcpy(txt_buf, "Talk request from"), p + 3);
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if ((p = strstri(p, "respond with")) != 0) {
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if (*(p-1) == '[') *(p-1) = '\0'; else *p = '\0'; /* terminate */
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p += (sizeof "respond with" - sizeof "");
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if (*p == ':') p++;
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if (*p == ' ') p++;
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cmd = strcpy(cmd_buf, p); /* "TALK[/OLD] bar@spam" */
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p = eos(cmd_buf);
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if (*--p == ']') *p = '\0';
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}
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} else
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txt = strcat(strcpy(txt_buf, "Pardon the interruption: "), buf);
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} else if (is_jnet_send) { /* sscanf(,"(%[^)])%s -%c",,,)==3 */
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jnet_send:
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/*
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\(SPAM\)BAR - arbitrary_message_text (from BAR@SPAM)
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*/
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typ = MSG_CALL;
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nam = "Bitnet noise"; /* RSCS/NJE message received via JNET */
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Sprintf(cmd_buf, "XYZZY %s@%s", user, node);
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cmd = cmd_buf;
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/*{ perhaps just vanilla SEND instead of XYZZY? }*/
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Sprintf(txt_buf, "Message from %s@%s:%s", user, node,
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&buf[1+strlen(node)+1+strlen(user)+2-1]); /* "(node)user -" */
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txt = txt_buf;
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/*
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: end of call recognition; anything else is none-of-the-above...
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*/
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} else {
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other:
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# endif /* SHELL */
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/* arbitrary broadcast: batch job completed, system shutdown imminent, &c */
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typ = MSG_OTHER;
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nam = (char *) 0; /*"captured broadcast message"*/
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cmd = (char *) 0;
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txt = strcat(strcpy(txt_buf, "Message for you: "), buf);
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# ifdef SHELL
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}
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/* Daemon in newmail() will append period when the text is displayed */
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if ((p = eos(txt)) > txt && *--p == '.') *p = '\0';
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/* newmail() and readmail() assume that nam and cmd are concatenated */
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if (nam) { /* object name to attach to scroll of mail */
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char *join = strcpy(nam_cmd_buf, nam);
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if (cmd) { /* append command to name; readmail() requires it */
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int len = sizeof nam_cmd_buf - sizeof "" - (strlen(join) + 1);
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cmd_buf[len] = '\0'; /* possibly truncate */
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(void) strcat(join, " ");
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cmd = strcpy(eos(join), cmd);
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}
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nam = join;
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}
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# endif /* SHELL */
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/* truncate really long messages to prevent verbalize() from blowing up */
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if (txt && strlen(txt) > BUFSZ - 50) txt[BUFSZ - 50] = '\0';
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msg.message_typ = typ; /* simple index */
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msg.display_txt = txt; /* text for daemon to pline() */
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msg.object_nam = nam; /* 'name' for mail scroll */
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msg.response_cmd = cmd; /* command to spawn when scroll read */
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return &msg;
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}
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/* filter out non-printable characters and redundant noise
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*/
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static void
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filter_brdcst(buf) /* called by parse_next_broadcast() */
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register char *buf; /* in: original text; out: filtered text */
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{
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register char c, *p, *buf_p;
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/* filter the text; restrict consecutive spaces or dots to just two */
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for (p = buf_p = buf; *buf_p; buf_p++) {
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c = *buf_p & '\177';
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if (c == ' ' || c == '\t' || c == '\n')
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if (p == buf || /* ignore leading whitespace */
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(p >= buf+2 && *(p-1) == ' ' && *(p-2) == ' ')) continue;
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else c = ' ';
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else if (c == '.' || c < ' ' || c == '\177')
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if (p == buf || /* skip leading beeps & such */
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(p >= buf+2 && *(p-1) == '.' && *(p-2) == '.')) continue;
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else c = '.';
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else if (c == '%' && /* trim %%% OPCOM verbosity %%% */
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p >= buf+2 && *(p-1) == '%' && *(p-2) == '%') continue;
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*p++ = c;
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}
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*p = '\0'; /* terminate, then strip trailing junk */
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while (p > buf && (*--p == ' ' || *p == '.')) *p = '\0';
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return;
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}
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static char empty_string[] = "";
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/* fetch the text of a captured broadcast, then mangle and decipher it
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*/
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struct mail_info *
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parse_next_broadcast() /* called by ckmailstatus(mail.c) */
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{
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short length, msg_type;
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$DESCRIPTOR(message, empty_string); /* string descriptor for buf[] */
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struct mail_info *result = 0;
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/* messages could actually be longer; let long ones be truncated */
|
||||
char buf[255+1];
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|
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message.dsc$a_pointer = buf, message.dsc$w_length = sizeof buf - 1;
|
||||
msg_type = length = 0;
|
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smg$get_broadcast_message(&pasteboard_id, &message, &length, &msg_type);
|
||||
if (msg_type == MSG$_TRMBRDCST) {
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buf[length] = '\0';
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||||
filter_brdcst(buf); /* mask non-printable characters */
|
||||
result = parse_brdcst(buf); /* do the real work */
|
||||
} else if (msg_type == MSG$_TRMHANGUP) {
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(void) gsignal(SIGHUP);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/* spit out any pending broadcast messages whenever we leave
|
||||
*/
|
||||
static void
|
||||
flush_broadcasts() /* called from disable_broadcast_trapping() */
|
||||
{
|
||||
if (broadcasts > 0) {
|
||||
short len, typ;
|
||||
$DESCRIPTOR(msg_dsc, empty_string);
|
||||
char buf[512+1];
|
||||
|
||||
msg_dsc.dsc$a_pointer = buf, msg_dsc.dsc$w_length = sizeof buf - 1;
|
||||
raw_print(""); /* print at least one line for wait_synch() */
|
||||
do {
|
||||
typ = len = 0;
|
||||
smg$get_broadcast_message(&pasteboard_id, &msg_dsc, &len, &typ);
|
||||
if (typ == MSG$_TRMBRDCST) buf[len] = '\0', raw_print(buf);
|
||||
} while (--broadcasts);
|
||||
wait_synch(); /* prompt with "Hit return to continue: " */
|
||||
}
|
||||
}
|
||||
|
||||
/* AST routine called when the terminal's associated mailbox receives a message
|
||||
*/
|
||||
/*ARGSUSED*/
|
||||
static void
|
||||
broadcast_ast(dummy) /* called asynchronously by terminal driver */
|
||||
int dummy; /* not used */
|
||||
{
|
||||
broadcasts++;
|
||||
}
|
||||
|
||||
/* initialize the broadcast manipulation code; SMG makes this easy
|
||||
*/
|
||||
unsigned long init_broadcast_trapping() /* called by setftty() [once only] */
|
||||
{
|
||||
unsigned long sts, preserve_screen_flag = 1;
|
||||
|
||||
/* we need a pasteboard to pass to the broadcast setup/teardown routines */
|
||||
sts = smg$create_pasteboard(&pasteboard_id, 0, 0, 0, &preserve_screen_flag);
|
||||
if (!vms_ok(sts)) {
|
||||
errno = EVMSERR, vaxc$errno = sts;
|
||||
raw_print("");
|
||||
perror("?can't create SMG pasteboard for broadcast trapping");
|
||||
wait_synch();
|
||||
broadcasts = -1; /* flag that trapping is currently broken */
|
||||
}
|
||||
return sts;
|
||||
}
|
||||
|
||||
/* set up the terminal driver to deliver $brkthru data to a mailbox device
|
||||
*/
|
||||
unsigned long enable_broadcast_trapping() /* called by setftty() */
|
||||
{
|
||||
unsigned long sts = 1;
|
||||
|
||||
if (broadcasts >= 0) { /* (-1 => no pasteboard, so don't even try) */
|
||||
/* register callback routine to be triggered when broadcasts arrive */
|
||||
/* Note side effect: also intercepts hangup notification. */
|
||||
/* Another note: TMPMBX privilege is required. */
|
||||
sts = smg$set_broadcast_trapping(&pasteboard_id, broadcast_ast, 0);
|
||||
if (!vms_ok(sts)) {
|
||||
errno = EVMSERR, vaxc$errno = sts;
|
||||
raw_print("");
|
||||
perror("?can't enable broadcast trapping");
|
||||
wait_synch();
|
||||
}
|
||||
}
|
||||
return sts;
|
||||
}
|
||||
|
||||
/* return to 'normal'; $brkthru data goes straight to the terminal
|
||||
*/
|
||||
unsigned long disable_broadcast_trapping() /* called by settty() */
|
||||
{
|
||||
unsigned long sts = 1;
|
||||
|
||||
if (broadcasts >= 0) {
|
||||
/* disable trapping; releases associated MBX so that SPAWN can work */
|
||||
sts = smg$disable_broadcast_trapping(&pasteboard_id);
|
||||
if (!vms_ok(sts)) errno = EVMSERR, vaxc$errno = sts;
|
||||
flush_broadcasts(); /* don't hold on to any buffered ones */
|
||||
}
|
||||
return sts;
|
||||
}
|
||||
#else /* MAIL */
|
||||
/* simple stubs for non-mail configuration */
|
||||
unsigned long init_broadcast_trapping() { return 1; }
|
||||
unsigned long enable_broadcast_trapping() { return 1; }
|
||||
unsigned long disable_broadcast_trapping() { return 1; }
|
||||
struct mail_info *parse_next_broadcast() { return 0; }
|
||||
#endif /* MAIL */
|
||||
|
||||
/*----------------------------------------------------------------------*/
|
||||
|
||||
#ifdef TEST_DRIVER
|
||||
/* (Take parse_next_broadcast for a spin. :-) */
|
||||
|
||||
volatile int broadcasts = 0;
|
||||
|
||||
void newmail(foo)
|
||||
struct mail_info *foo;
|
||||
{
|
||||
# define STRING(s) ((s) ? (s) : "<null>")
|
||||
printf("\n\
|
||||
message type = %d\n\
|
||||
display text = \"%s\"\n\
|
||||
object name = \"%.*s\"\n\
|
||||
response cmd = \"%s\"\n\
|
||||
", foo->message_typ, STRING(foo->display_txt),
|
||||
(foo->object_nam && foo->response_cmd) ?
|
||||
(foo->response_cmd - foo->object_nam - 1) :
|
||||
strlen(STRING(foo->object_nam)),
|
||||
STRING(foo->object_nam), STRING(foo->response_cmd));
|
||||
# undef STRING
|
||||
}
|
||||
|
||||
void ckmailstatus()
|
||||
{
|
||||
struct mail_info *brdcst, *parse_next_broadcast();
|
||||
|
||||
while (broadcasts > 0) { /* process all trapped broadcasts [until] */
|
||||
broadcasts--;
|
||||
if ((brdcst = parse_next_broadcast()) != 0) {
|
||||
newmail(brdcst);
|
||||
break; /* only handle one real message at a time */
|
||||
} else
|
||||
printf("\n--< non-broadcast encountered >--\n");
|
||||
}
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
char dummy[BUFSIZ];
|
||||
|
||||
init_broadcast_trapping();
|
||||
enable_broadcast_trapping();
|
||||
for (;;) {
|
||||
ckmailstatus();
|
||||
printf("> "), fflush(stdout); /* issue a prompt */
|
||||
if (!gets(dummy)) break; /* wait for a response */
|
||||
}
|
||||
disable_broadcast_trapping();
|
||||
return 1;
|
||||
}
|
||||
|
||||
void panic(s) char *s; { raw_print(s); exit(EXIT_FAILURE); }
|
||||
|
||||
void raw_print(s) char *s; { puts(s); fflush(stdout); }
|
||||
|
||||
void wait_synch() { char dummy[BUFSIZ];
|
||||
printf("\nPress <return> to continue: "); fflush(stdout); (void) gets(dummy);
|
||||
}
|
||||
#endif /* TEST_DRIVER */
|
||||
|
||||
/*vmsmail.c*/
|
||||
Reference in New Issue
Block a user