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1.1 root 1: /* This file is automatically generated. Do not edit! */
2: /* @(#) $Header: mts.c,v 1.3 89/12/15 23:53:32 leres Locked $ (LBL) */
3: /* mts.c - definitions for the mail transport system */
4:
5: /* LINTLIBRARY */
6:
7: #undef NETWORK
8: #if defined(BSD41A) || defined(BSD42)
9: #define NETWORK
10: #endif not (defined(BSD41A) || defined(BSD42))
11:
12: #include "../h/strings.h"
13: #include <ctype.h>
14: #include <stdio.h>
15: #include "mts.h"
16: #ifdef NETWORK
17: #ifdef BSD42
18: #include <netdb.h>
19: #endif BSD42
20: #else not NETWORK
21: #ifndef SYS5
22: #include <whoami.h>
23: #else SYS5
24: #include <sys/utsname.h>
25: #endif SYS5
26: #endif not NETWORK
27: #include <pwd.h>
28:
29:
30: #define NOTOK (-1)
31: #define OK 0
32:
33: #define NULLCP ((char *) 0)
34:
35: extern int errno;
36:
37: static char *tailor_value();
38:
39:
40: #ifdef SYS5
41: #define index strchr
42: #define rindex strrchr
43: #endif SYS5
44:
45: char *index (), *malloc (), *mktemp (), *rindex (), *strcpy ();
46:
47: struct passwd *getpwuid ();
48:
49: /* */
50:
51: /*
52: *mmdfldir and *uucpldir are the maildrop directories. If maildrops
53: are kept in the user's home directory, then these should be empty
54: strings. In this case, the appropriate ...lfil array should contain
55: the name of the file in the user's home directory. Usually, this is
56: something like ".mail".
57: */
58:
59: static char *mtstailor = "/usr/contrib/mh/lib/mtstailor";
60:
61: static char *localname = "";
62: static char *systemname = "";
63: #ifdef MF
64: static char *UUCPchan = "";
65: #endif MF
66: char *mmdfldir = "/var/mail";
67: char *mmdflfil = "";
68: char *uucpldir = "/var/mail";
69: char *uucplfil = "";
70:
71:
72: char *mmdlm1 = "\001\001\001\001\n";
73: char *mmdlm2 = "\001\001\001\001\n";
74:
75:
76: static int MMailids = 0;
77: static char *mmailid = "0";
78:
79:
80: #ifdef MF
81: char *umincproc = "/usr/contrib/mh/lib/uminc";
82: #else MF
83: char *umincproc = NULL;
84: #endif MF
85:
86:
87: int lockstyle = LOK_UNIX;
88: static char *lkstyle = "0";
89: char *lockldir = "";
90:
91: /* */
92:
93: /* MTS specific variables */
94:
95: #ifdef MHMTS
96: char *Mailqdir = "/usr/spool/netmail";
97: char *TMailqdir = "/usr/tmp";
98: int Syscpy = 1;
99: static char *syscpy = "1";
100: char *Overseer = "root";
101: char *Mailer = "root";
102: char *Fromtmp = "/tmp/rml.f.XXXXXX";
103: char *Msgtmp = "/tmp/rml.m.XXXXXX";
104: char *Errtmp = "/tmp/rml.e.XXXXXX";
105: int Tmpmode = 0600;
106: static char *tmpmode = "0600";
107: char *Okhosts = "/usr/contrib/mh/lib/Rmail.OkHosts";
108: char *Okdests = "/usr/contrib/mh/lib/Rmail.OkDests";
109: #endif MHMTS
110:
111: #ifdef MMDFMTS
112: #endif MMDFMTS
113:
114: #ifdef SENDMTS
115: char *hostable = "/usr/contrib/mh/lib/hosts";
116: char *sendmail = "/usr/sbin/sendmail";
117: #endif SENDMTS
118:
119:
120: /* SMTP/POP stuff */
121:
122: char *servers = "localhost \01localnet";
123: char *pophost = "";
124:
125:
126: /* BBoards-specific variables */
127:
128: char *bb_domain = "";
129:
130:
131: /* POP BBoards-specific variables */
132:
133: #ifdef BPOP
134: char *popbbhost = "";
135: char *popbbuser = "";
136: char *popbblist = "/usr/contrib/mh/lib/hosts.popbb";
137: #endif BPOP
138:
139:
140: /* MailDelivery */
141:
142: char *maildelivery = "/usr/contrib/mh/lib/maildelivery";
143:
144:
145: /* Aliasing Facility (doesn't belong here) */
146:
147: int Everyone = NOTOK;
148: static char *everyone = "-1";
149: char *NoShell = "";
150:
151: /* */
152:
153: /* customize the MTS settings for MH by reading /usr/contrib/mh/lib/mtstailor */
154:
155: static struct bind {
156: char *keyword;
157: char **value;
158: } binds[] = {
159: "localname", &localname,
160: "systemname", &systemname,
161: #ifdef MF
162: "uucpchan", &UUCPchan,
163: #endif MF
164: "mmdfldir", &mmdfldir,
165: "mmdflfil", &mmdflfil,
166: "uucpldir", &uucpldir,
167: "uucplfil", &uucplfil,
168: "mmdelim1", &mmdlm1,
169: "mmdelim2", &mmdlm2,
170: "mmailid", &mmailid,
171: "umincproc", &umincproc,
172: "lockstyle", &lkstyle,
173: "lockldir", &lockldir,
174:
175: #ifdef MHMTS
176: "mailqdir", &Mailqdir,
177: "tmailqdir", &TMailqdir,
178: "syscpy", &syscpy,
179: "overseer", &Overseer,
180: "mailer", &Mailer,
181: "fromtmp", &Fromtmp,
182: "msgtmp", &Msgtmp,
183: "errtmp", &Errtmp,
184: "tmpmode", &tmpmode,
185: "okhosts", &Okhosts,
186: "okdests", &Okdests,
187: #endif MHMTS
188:
189: #ifdef MMDFMTS
190: #endif MMDFMTS
191:
192: #ifdef SENDMTS
193: "hostable", &hostable,
194: "sendmail", &sendmail,
195: #endif SENDMTS
196:
197: "servers", &servers,
198: "pophost", &pophost,
199:
200: "bbdomain", &bb_domain,
201:
202: #ifdef BPOP
203: "popbbhost", &popbbhost,
204: "popbbuser", &popbbuser,
205: "popbblist", &popbblist,
206: #endif BPOP
207:
208: "maildelivery", &maildelivery,
209:
210: "everyone", &everyone,
211: "noshell", &NoShell,
212:
213: NULL
214: };
215:
216: /* */
217:
218: /* I'd like to use m_getfld() here, but not all programs loading mts.o may be
219: MH-style programs... */
220:
221: /* ARGSUSED */
222:
223: mts_init(name)
224: char *name;
225: {
226: register char *bp,
227: *cp;
228: char buffer[BUFSIZ];
229: register struct bind *b;
230: register FILE *fp;
231: static int inited = 0;
232:
233: if (inited++ || (fp = fopen (mtstailor, "r")) == NULL)
234: return;
235:
236: while (fgets (buffer, sizeof buffer, fp)) {
237: if ((cp = index (buffer, '\n')) == NULL)
238: break;
239: *cp = NULL;
240: if (*buffer == '#' || *buffer == NULL)
241: continue;
242: if ((bp = index (buffer, ':')) == NULL)
243: break;
244: *bp++ = NULL;
245: while (isspace (*bp))
246: *bp++ = NULL;
247:
248: for (b = binds; b -> keyword; b++)
249: if (strcmp (buffer, b -> keyword) == 0)
250: break;
251: if (b -> keyword && (cp = tailor_value (bp)))
252: *b -> value = cp;
253: }
254:
255: (void) fclose (fp);
256:
257: MMailids = atoi (mmailid);
258: if ((lockstyle = atoi (lkstyle)) < LOK_UNIX || lockstyle > LOK_MMDF)
259: lockstyle = LOK_UNIX;
260: #ifdef MHMTS
261: Syscpy = atoi (syscpy);
262: (void) sscanf (tmpmode, "0%o", &Tmpmode);
263: #endif MHMTS
264: Everyone = atoi (everyone);
265: }
266:
267: /* */
268:
269: #define QUOTE '\\'
270:
271: static char *
272: tailor_value(s)
273: register char *s;
274: {
275: register int i,
276: r;
277: register char *bp;
278: char buffer[BUFSIZ];
279:
280: for (bp = buffer; *s; bp++, s++)
281: if (*s != QUOTE)
282: *bp = *s;
283: else
284: switch (*++s) {
285: case 'b': *bp = '\b'; break;
286: case 'f': *bp = '\f'; break;
287: case 'n': *bp = '\n'; break;
288: case 't': *bp = '\t'; break;
289:
290: case NULL: s--;
291: case QUOTE:
292: *bp = QUOTE;
293: break;
294:
295: default:
296: if (!isdigit (*s)) {
297: *bp++ = QUOTE;
298: *bp = *s;
299: }
300: r = *s != '0' ? 10 : 8;
301: for (i = 0; isdigit (*s); s++)
302: i = i * r + *s - '0';
303: s--;
304: *bp = toascii (i);
305: break;
306: }
307: *bp = NULL;
308:
309: bp = malloc ((unsigned) (strlen (buffer) + 1));
310: if (bp != NULL)
311: (void) strcpy (bp, buffer);
312:
313: return bp;
314: }
315:
316: /* */
317:
318: char *
319: LocalName()
320: {
321: #ifdef BSD41A
322: char *myname;
323: #endif BSD41A
324: #ifdef BSD42
325: register struct hostent *hp;
326: #endif BSD42
327: #ifdef SYS5
328: struct utsname name;
329: #endif SYS5
330: static char buffer[BUFSIZ] = "";
331:
332: if (buffer[0])
333: return buffer;
334:
335: mts_init ("mts");
336: if (*localname)
337: return strcpy (buffer, localname);
338:
339: #ifdef locname
340: (void) strcpy (buffer, locname);
341: #else not locname
342: #ifdef NETWORK
343: #ifdef BSD41A
344: myname = "myname";
345: if (rhost (&myname) == -1)
346: (void) gethostname (buffer, sizeof buffer);
347: else {
348: (void) strcpy (buffer, myname);
349: free (myname);
350: }
351: #endif BSD41A
352: #ifdef BSD42
353: (void) gethostname (buffer, sizeof buffer);
354: sethostent (1);
355: if (hp = gethostbyname (buffer))
356: (void) strcpy (buffer, hp -> h_name);
357: #endif BSD42
358: #else not NETWORK
359: #ifndef SYS5
360: (void) strcpy (buffer, SystemName ());
361: #else SYS5
362: (void) uname (&name);
363: (void) strcpy (buffer, name.nodename);
364: #endif SYS5
365: #endif not NETWORK
366: #endif not locname
367:
368: return buffer;
369: }
370:
371: /* */
372:
373: char *
374: SystemName()
375: {
376: #ifdef SYS5
377: struct utsname name;
378: #endif SYS5
379: static char buffer[BUFSIZ] = "";
380:
381: if (buffer[0])
382: return buffer;
383:
384: mts_init ("mts");
385: if (*systemname)
386: return strcpy (buffer, systemname);
387:
388: #ifdef sysname
389: (void) strcpy (buffer, sysname);
390: #else sysname
391: #ifndef SYS5
392: (void) gethostname (buffer, sizeof buffer);
393: #else SYS5
394: (void) uname (&name);
395: (void) strcpy (buffer, name.nodename);
396: #endif SYS5
397: #endif sysname
398:
399: return buffer;
400: }
401:
402: /* */
403:
404: char *
405: UucpChan()
406: {
407: #ifdef MF
408: static char buffer[BUFSIZ] = "";
409: #endif MF
410:
411: #ifndef MF
412: return NULL;
413: #else MF
414: if (buffer[0])
415: return buffer;
416:
417: mts_init ("mts");
418: if (*UUCPchan)
419: return strcpy (buffer, UUCPchan);
420:
421: #ifdef uucpchan
422: (void) strcpy (buffer, uucpchan);
423: #else uucpchan
424: (void) strcpy (buffer, "uucp");
425: #endif uucpchan
426: return buffer;
427: #endif MF
428: }
429:
430: /* */
431:
432: #ifdef ALTOS
433: gethostname(name, len)
434: register char *name;
435: register int len;
436: {
437: register char *cp;
438: register FILE *fp;
439:
440: if (fp = fopen ("/etc/systemid", "r")) {
441: if (fgets (name, len, fp)) {
442: if (cp = index (name, '\n'))
443: *cp = NULL;
444: (void) fclose (fp);
445: return OK;
446: }
447: (void) fclose (fp);
448: }
449: (void) strncpy (name, "altos", len);
450:
451: return OK;
452: }
453: #endif ALTOS
454:
455: /* */
456:
457: static char username[BUFSIZ] = "";
458: static char fullname[BUFSIZ] = "";
459:
460:
461: char *
462: getusr()
463: {
464: register char *cp,
465: *np;
466: register struct passwd *pw;
467:
468: if (username[0])
469: return username;
470:
471: if ((pw = getpwuid (getuid ())) == NULL
472: || pw -> pw_name == NULL
473: || *pw -> pw_name == NULL) {
474: (void) strcpy (username, "intruder");
475: (void) sprintf (fullname, "The Unknown User-ID (%d)", getuid ());
476: return username;
477: }
478:
479: if (MMailids) {
480: np = pw -> pw_gecos;
481: for (cp = fullname; *np && *np != '<'; *cp++ = *np++)
482: continue;
483: *cp = NULL;
484: if (*np)
485: np++;
486: for (cp = username; *np && *np != '>'; *cp++ = *np++)
487: continue;
488: *cp = NULL;
489: }
490: if (MMailids == 0 || *np == NULL) {
491: (void) strcpy (username, pw -> pw_name);
492: fullname[0] = NULL;
493: }
494: if ((cp = getenv ("SIGNATURE")) && *cp)
495: (void) strcpy (fullname, cp);
496:
497: return username;
498: }
499:
500:
501: char *
502: getfullname()
503: {
504: if (username[0] == NULL)
505: (void) getusr ();
506:
507: return fullname;
508: }
509:
510: /* */
511:
512: #ifdef SYS5
513: #ifndef notdef /* Supposedly this works, I prefer the
514: recursive solution... */
515:
516: #include <fcntl.h>
517:
518: dup2(d1, d2)
519: register int d1, d2;
520: {
521: int d;
522:
523: if (d1 == d2)
524: return OK;
525:
526: (void) close (d2);
527: if ((d = fcntl (d1, F_DUPFD, d2)) == NOTOK)
528: return NOTOK;
529: if (d == d2)
530: return OK;
531:
532: errno = 0;
533: return NOTOK;
534: }
535:
536: #else notdef
537: dup2(d1, d2)
538: register int d1, d2;
539: {
540: if (d1 == d2)
541: return OK;
542:
543: (void) close (d2);
544: return dup2aux (d1, d2);
545: }
546:
547:
548: static int
549: dup2aux(d1, d2)
550: register int d1, d2;
551: {
552: int d,
553: i,
554: eindex;
555:
556: if ((d = dup (d1)) == NOTOK)
557: return NOTOK;
558: if (d == d2)
559: return OK;
560:
561: i = dup2aux (d1, d2);
562: eindex = errno;
563: (void) close (d);
564: errno = eindex;
565: return i;
566: }
567: #endif notdef
568: #endif SYS5
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