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1.1 root 1: /* $Header: init.c,v 4.3.1.2 85/05/21 14:22:46 lwall Exp $
2: *
3: * $Log: init.c,v $
4: * Revision 4.3.1.2 85/05/21 14:22:46 lwall
5: * Sped up "rn -c" by avoiding unnecessary initialization.
6: *
7: * Revision 4.3.1.1 85/05/10 11:33:39 lwall
8: * Branch for patches.
9: *
10: * Revision 4.3 85/05/01 16:16:13 lwall
11: * Baseline for release with 4.3bsd.
12: *
13: */
14:
15: #include "EXTERN.h"
16: #include "common.h"
17: #include "util.h"
18: #include "final.h"
19: #include "term.h"
20: #include "last.h"
21: #include "rn.h"
22: #include "rcstuff.h"
23: #include "ngdata.h"
24: #include "only.h"
25: #include "intrp.h"
26: #include "addng.h"
27: #include "sw.h"
28: #include "art.h"
29: #include "artsrch.h"
30: #include "artio.h"
31: #include "backpage.h"
32: #include "bits.h"
33: #include "cheat.h"
34: #include "head.h"
35: #include "help.h"
36: #include "kfile.h"
37: #include "ngsrch.h"
38: #include "ngstuff.h"
39: #include "rcln.h"
40: #include "respond.h"
41: #include "ng.h"
42: #include "server.h"
43: #include "INTERN.h"
44: #include "init.h"
45:
46: bool
47: initialize(argc,argv)
48: int argc;
49: char *argv[];
50: {
51: char *tcbuf;
52: register bool foundany = FALSE;
53: long time();
54: #ifdef NOLINEBUF
55: char std_out_buf[BUFSIZ];
56:
57: setbuf(std_out_buf);
58: #endif
59:
60: tcbuf = safemalloc(1024); /* make temp buffer for termcap and */
61: /* other initialization stuff */
62:
63: /* init terminal */
64:
65: term_init(); /* must precede sw_init() so that */
66: /* ospeed is set for baud-rate */
67: /* switches. Actually terminal */
68: /* mode setting is in term_set() */
69:
70: /* we have to know rnlib to look up global switches in %X/INIT */
71:
72: lib = savestr(filexp(LIB));
73: rnlib = savestr(filexp(RNLIB));
74:
75: /* decode switches */
76:
77: sw_init(argc,argv,&tcbuf); /* must not do % interps! */
78: /* (but may mung environment) */
79:
80: /* init signals, status flags */
81:
82: final_init();
83:
84: /* start up file expansion and the % interpreter */
85:
86: intrp_init(tcbuf);
87:
88: /* now make sure we have a current working directory */
89:
90: if (!checkflag)
91: cwd_check();
92:
93: /* now that we know where to save things, cd to news directory */
94:
95: if (chdir(spool)) {
96: printf(nocd,spool) FLUSH;
97: finalize(1);
98: }
99:
100: /* if we aren't just checking, turn off echo */
101:
102: if (!checkflag)
103: term_set(tcbuf);
104:
105: /* get info on last rn run, if any */
106:
107: if (!checkflag)
108: last_init(tcbuf);
109:
110: free(tcbuf); /* recover 1024 bytes */
111:
112: /* make sure we are the right version */
113:
114: #ifndef SERVER
115: if (!checkflag)
116: version_check();
117: #endif
118:
119: /* make sure we are the sole possessors of .newsrc */
120:
121: if (!checkflag)
122: lock_check();
123:
124: /* check for news news */
125:
126: if (!checkflag)
127: newsnews_check();
128:
129: /* open connection to server if appropriate */
130:
131: #ifdef SERVER
132: if (server_init(SERVER_HOST) < 0)
133: finalize(1);
134: #endif
135:
136: /* open active file, etc. */
137:
138: ngdata_init();
139:
140: /* now read in the .newsrc file */
141:
142: foundany = rcstuff_init();
143:
144: /* it looks like we will actually read something, so init everything */
145:
146: addng_init();
147: art_init();
148: artio_init();
149: artsrch_init();
150: backpage_init();
151: bits_init();
152: cheat_init();
153: /* final_init(); already done */
154: head_init();
155: help_init();
156: /* intrp_init(); already done */
157: kfile_init();
158: /* last_init(); already done */
159: ng_init();
160: /* ngdata_init(); already done */
161: ngsrch_init();
162: ngstuff_init();
163: only_init();
164: rcln_init();
165: /* rcstuff_init(); already done */
166: respond_init();
167: rn_init();
168: search_init();
169: /* sw_init(); already done */
170: /* term_init(); already done */
171: util_init();
172:
173: #ifdef FINDNEWNG
174: fstat(actfp->_file,&filestat); /* did active file grow? */
175: if (filestat.st_size != lastactsiz) {
176: long actsiz = filestat.st_size; /* remember new size */
177: NG_NUM oldnext = nextrcline; /* remember # lines in newsrc */
178: #ifdef FASTNEW
179: bool munged = writesoft || !lastactsiz;
180: /* bad soft ptrs -> edited active */
181: #else
182: bool munged = TRUE; /* just assume .newsrc munged */
183: #endif
184:
185: #ifdef VERBOSE
186: IF(verbose)
187: fputs("\nChecking active list for new newsgroups...\n",stdout)
188: FLUSH;
189: ELSE
190: #endif
191: #ifdef TERSE
192: fputs("\nNew newsgroups:\n",stdout) FLUSH;
193: #endif
194: #ifdef FASTNEW
195: if (!munged) { /* maybe just do tail of file? */
196: fseek(actfp,lastactsiz-1,0);
197: fgets(buf,LBUFLEN,actfp);
198: munged = (*buf != '\n');
199: if (!munged)
200: munged = newlist(munged,FALSE);
201: }
202: #endif
203: if (munged) { /* must we scan entire file? */
204: fseek(actfp,0L,0); /* rewind active file */
205: newlist(munged,FALSE); /* sure hope they use hashing... */
206: }
207: lastactsiz = actsiz; /* remember for .rnlast */
208: if (nextrcline != oldnext) { /* did we add any new groups? */
209: foundany = TRUE; /* let main() know */
210: starthere = 0; /* and start ng scan from the top */
211: }
212: }
213: #endif
214: time(&lasttime); /* remember when we inited-- */
215: /* ends up back in .rnlast */
216: writelast(); /* in fact, put it there now */
217:
218: #ifdef FINDNEWNG
219: # ifdef ONLY
220: if (maxngtodo) /* patterns on command line? */
221: foundany |= scanactive();
222: # endif
223: #endif
224:
225: return foundany;
226: }
227:
228: /* make sure there is no rn out there already */
229:
230: void
231: lock_check()
232: {
233: lockname = savestr(filexp(LOCKNAME));
234: if (!checkflag) {
235: tmpfp = fopen(lockname,"r");
236: if (tmpfp != Nullfp) {
237: int processnum;
238:
239: fgets(buf,LBUFLEN,tmpfp);
240: fclose(tmpfp);
241: processnum = atoi(buf);
242: #ifdef VERBOSE
243: IF(verbose)
244: printf("You seem to have left an rn running, process %d.\n",
245: processnum) FLUSH;
246: ELSE
247: #endif
248: #ifdef TERSE
249: printf("Rn left running, #%d.\n", processnum) FLUSH;
250: #endif
251: if (kill(processnum, SIGEMT)) {
252: /* does process not exist? */
253: /* (rn ignores SIGEMT) */
254: sleep(2);
255: #ifdef VERBOSE
256: IF(verbose)
257: fputs("\n\
258: That process does not seem to exist anymore. The count of read articles\n\
259: may be incorrect in the last newsgroup accessed by that other (defunct)\n\
260: process.\n\n",stdout) FLUSH;
261: ELSE
262: #endif
263: #ifdef TERSE
264: fputs("\nProcess crashed.\n",stdout) FLUSH;
265: #endif
266: if (*lastngname) {
267: #ifdef VERBOSE
268: IF(verbose)
269: printf("(The last newsgroup accessed was %s.)\n\n",
270: lastngname) FLUSH;
271: ELSE
272: #endif
273: #ifdef TERSE
274: printf("(In %s.)\n\n",lastngname) FLUSH;
275: #endif
276: }
277: get_anything();
278: putchar('\n') FLUSH;
279: }
280: else {
281: #ifdef VERBOSE
282: IF(verbose)
283: fputs("\n\
284: You may not have two copies of rn running simultaneously. Goodbye.\n\
285: ",stdout) FLUSH;
286: ELSE
287: #endif
288: #ifdef TERSE
289: fputs("\nCan't start another.\n",stdout) FLUSH;
290: #endif
291: finalize(0);
292: }
293: }
294: tmpfp = fopen(lockname,"w");
295: if (tmpfp == Nullfp) {
296: printf(cantcreate,lockname) FLUSH;
297: sig_catcher(0);
298: }
299: fprintf(tmpfp,"%d\n",getpid());
300: fclose(tmpfp);
301: }
302: }
303:
304: void
305: newsnews_check()
306: {
307: char *newsnewsname = filexp(NEWSNEWSNAME);
308:
309: if ((tmpfp = fopen(newsnewsname,"r")) != Nullfp) {
310: fstat(tmpfp->_file,&filestat);
311: if (filestat.st_mtime > lasttime) {
312: while (fgets(buf,sizeof(buf),tmpfp) != Nullch)
313: fputs(buf,stdout) FLUSH;
314: get_anything();
315: putchar('\n') FLUSH;
316: }
317: fclose(tmpfp);
318: }
319: }
320:
321: void
322: version_check()
323: {
324: set_ngname("net.announce");
325: if (access(ngdir,0)) {
326: #ifdef VERBOSE
327: IF(verbose)
328: fputs("Can't find net.announce. Wrong news version?\n",stdout)
329: FLUSH;
330: ELSE
331: #endif
332: #ifdef TERSE
333: fputs("Wrong version?\n",stdout) FLUSH;
334: #endif
335: finalize(1);
336: }
337: }
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