![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to rcp.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / bin / rcp|
Return to rcp.c CVS log | Up to [CSRG BSD Unix] / 43BSDReno / bin / rcp |
1.1 root 1: /*
2: * Copyright (c) 1983, 1990 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: char copyright[] =
22: "@(#) Copyright (c) 1983, 1990 The Regents of the University of California.\n\
23: All rights reserved.\n";
24: #endif /* not lint */
25:
26: #ifndef lint
27: static char sccsid[] = "@(#)rcp.c 5.29 (Berkeley) 6/29/90";
28: #endif /* not lint */
29:
30: /*
31: * rcp
32: */
33: #include <sys/param.h>
34: #include <sys/file.h>
35: #include <sys/stat.h>
36: #include <sys/time.h>
37: #include <sys/ioctl.h>
38: #include <sys/dir.h>
39: #include <sys/signal.h>
40: #include <netinet/in.h>
41: #include <netinet/in_systm.h>
42: #include <netinet/ip.h>
43: #include <pwd.h>
44: #include <netdb.h>
45: #include <errno.h>
46: #include <string.h>
47: #include <stdio.h>
48: #include <ctype.h>
49: #include "pathnames.h"
50:
51: #ifdef KERBEROS
52: #include <kerberosIV/des.h>
53: #include <kerberosIV/krb.h>
54: char dst_realm_buf[REALM_SZ];
55: char *dest_realm = NULL;
56: int use_kerberos = 1, encrypt = 0;
57: CREDENTIALS cred;
58: Key_schedule schedule;
59: extern char *krb_realmofhost();
60: #define OPTIONS "dfkprtx"
61: #else
62: #define OPTIONS "dfprt"
63: #endif
64:
65: extern int errno;
66: struct passwd *pwd;
67: u_short port;
68: uid_t userid;
69: int errs, rem;
70: int pflag, iamremote, iamrecursive, targetshouldbedirectory;
71:
72: #define CMDNEEDS 64
73: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
74:
75: typedef struct _buf {
76: int cnt;
77: char *buf;
78: } BUF;
79:
80: main(argc, argv)
81: int argc;
82: char **argv;
83: {
84: extern int optind;
85: struct servent *sp;
86: int ch, fflag, tflag;
87: char *targ, *colon();
88: struct passwd *getpwuid();
89: int lostconn();
90:
91: fflag = tflag = 0;
92: while ((ch = getopt(argc, argv, OPTIONS)) != EOF)
93: switch(ch) {
94: /* user-visible flags */
95: case 'p': /* preserve access/mod times */
96: ++pflag;
97: break;
98: case 'r':
99: ++iamrecursive;
100: break;
101: #ifdef KERBEROS
102: case 'k':
103: strncpy(dst_realm_buf, ++argv, REALM_SZ);
104: dest_realm = dst_realm_buf;
105: break;
106: case 'x':
107: encrypt = 1;
108: /* des_set_key(cred.session, schedule); */
109: break;
110: #endif
111: /* rshd-invoked options (server) */
112: case 'd':
113: targetshouldbedirectory = 1;
114: break;
115: case 'f': /* "from" */
116: iamremote = 1;
117: fflag = 1;
118: break;
119: case 't': /* "to" */
120: iamremote = 1;
121: tflag = 1;
122: break;
123:
124: case '?':
125: default:
126: usage();
127: }
128: argc -= optind;
129: argv += optind;
130:
131: #ifdef KERBEROS
132: sp = getservbyname((encrypt ? "ekshell" : "kshell"), "tcp");
133: if (sp == NULL) {
134: char msgbuf[64];
135: use_kerberos = 0;
136: (void) sprintf(msgbuf, "can't get entry for %s/tcp service",
137: (encrypt ? "ekshell" : "kshell"));
138: old_warning(msgbuf);
139: sp = getservbyname("shell", "tcp");
140: }
141: #else
142: sp = getservbyname("shell", "tcp");
143: #endif
144: if (sp == NULL) {
145: (void)fprintf(stderr, "rcp: shell/tcp: unknown service\n");
146: exit(1);
147: }
148: port = sp->s_port;
149:
150: if (!(pwd = getpwuid(userid = getuid()))) {
151: (void)fprintf(stderr, "rcp: unknown user %d.\n", userid);
152: exit(1);
153: }
154:
155: if (fflag) {
156: /* follow "protocol", send data */
157: (void)response();
158: (void)setuid(userid);
159: source(argc, argv);
160: exit(errs);
161: }
162:
163: if (tflag) {
164: /* receive data */
165: (void)setuid(userid);
166: sink(argc, argv);
167: exit(errs);
168: }
169:
170: if (argc < 2)
171: usage();
172: if (argc > 2)
173: targetshouldbedirectory = 1;
174:
175: rem = -1;
176: /* command to be executed on remote system using "rsh" */
177: #ifdef KERBEROS
178: (void)sprintf(cmd, "rcp%s%s%s%s", iamrecursive ? " -r" : "",
179: ((encrypt && use_kerberos) ? " -x" : ""),
180: pflag ? " -p" : "", targetshouldbedirectory ? " -d" : "");
181: #else
182: (void)sprintf(cmd, "rcp%s%s%s", iamrecursive ? " -r" : "",
183: pflag ? " -p" : "", targetshouldbedirectory ? " -d" : "");
184: #endif
185:
186: (void)signal(SIGPIPE, lostconn);
187:
188: if (targ = colon(argv[argc - 1]))
189: toremote(targ, argc, argv); /* destination is remote host */
190: else {
191: tolocal(argc, argv); /* destination is local host */
192: if (targetshouldbedirectory)
193: verifydir(argv[argc - 1]);
194: }
195: exit(errs);
196: }
197:
198: toremote(targ, argc, argv)
199: char *targ;
200: int argc;
201: char **argv;
202: {
203: int i, tos;
204: char *bp, *host, *src, *suser, *thost, *tuser;
205: char *colon(), *malloc();
206:
207: *targ++ = 0;
208: if (*targ == 0)
209: targ = ".";
210:
211: if (thost = index(argv[argc - 1], '@')) {
212: /* user@host */
213: *thost++ = 0;
214: tuser = argv[argc - 1];
215: if (*tuser == '\0')
216: tuser = NULL;
217: else if (!okname(tuser))
218: exit(1);
219: } else {
220: thost = argv[argc - 1];
221: tuser = NULL;
222: }
223:
224: for (i = 0; i < argc - 1; i++) {
225: src = colon(argv[i]);
226: if (src) { /* remote to remote */
227: *src++ = 0;
228: if (*src == 0)
229: src = ".";
230: host = index(argv[i], '@');
231: if (!(bp = malloc((u_int)(strlen(_PATH_RSH) +
232: strlen(argv[i]) + strlen(src) +
233: tuser ? strlen(tuser) : 0 + strlen(thost) +
234: strlen(targ)) + CMDNEEDS + 20)))
235: nospace();
236: if (host) {
237: *host++ = 0;
238: suser = argv[i];
239: if (*suser == '\0')
240: suser = pwd->pw_name;
241: else if (!okname(suser))
242: continue;
243: (void)sprintf(bp,
244: "%s %s -l %s -n %s %s '%s%s%s:%s'",
245: _PATH_RSH, host, suser, cmd, src,
246: tuser ? tuser : "", tuser ? "@" : "",
247: thost, targ);
248: } else
249: (void)sprintf(bp, "%s %s -n %s %s '%s%s%s:%s'",
250: _PATH_RSH, argv[i], cmd, src,
251: tuser ? tuser : "", tuser ? "@" : "",
252: thost, targ);
253: (void)susystem(bp);
254: (void)free(bp);
255: } else { /* local to remote */
256: if (rem == -1) {
257: if (!(bp = malloc((u_int)strlen(targ) +
258: CMDNEEDS + 20)))
259: nospace();
260: (void)sprintf(bp, "%s -t %s", cmd, targ);
261: host = thost;
262: #ifdef KERBEROS
263: if (use_kerberos)
264: rem = kerberos(&host, bp,
265: pwd->pw_name,
266: tuser ? tuser : pwd->pw_name);
267: else
268: #endif
269: rem = rcmd(&host, port, pwd->pw_name,
270: tuser ? tuser : pwd->pw_name,
271: bp, 0);
272: if (rem < 0)
273: exit(1);
274: tos = IPTOS_THROUGHPUT;
275: if (setsockopt(rem, IPPROTO_IP, IP_TOS,
276: (char *)&tos, sizeof(int)) < 0)
277: perror("rcp: setsockopt TOS (ignored)");
278: if (response() < 0)
279: exit(1);
280: (void)free(bp);
281: (void)setuid(userid);
282: }
283: source(1, argv+i);
284: }
285: }
286: }
287:
288: tolocal(argc, argv)
289: int argc;
290: char **argv;
291: {
292: int i, tos;
293: char *bp, *host, *src, *suser;
294: char *colon(), *malloc();
295:
296: for (i = 0; i < argc - 1; i++) {
297: if (!(src = colon(argv[i]))) { /* local to local */
298: if (!(bp = malloc((u_int)(strlen(_PATH_CP) +
299: strlen(argv[i]) + strlen(argv[argc - 1])) + 20)))
300: nospace();
301: (void)sprintf(bp, "%s%s%s %s %s", _PATH_CP,
302: iamrecursive ? " -r" : "", pflag ? " -p" : "",
303: argv[i], argv[argc - 1]);
304: (void)susystem(bp);
305: (void)free(bp);
306: continue;
307: }
308: *src++ = 0;
309: if (*src == 0)
310: src = ".";
311: host = index(argv[i], '@');
312: if (host) {
313: *host++ = 0;
314: suser = argv[i];
315: if (*suser == '\0')
316: suser = pwd->pw_name;
317: else if (!okname(suser))
318: continue;
319: } else {
320: host = argv[i];
321: suser = pwd->pw_name;
322: }
323: if (!(bp = malloc((u_int)(strlen(src)) + CMDNEEDS + 20)))
324: nospace();
325: (void)sprintf(bp, "%s -f %s", cmd, src);
326: #ifdef KERBEROS
327: if (use_kerberos)
328: rem = kerberos(&host, bp, pwd->pw_name, suser);
329: else
330: #endif
331: rem = rcmd(&host, port, pwd->pw_name, suser, bp, 0);
332: (void)free(bp);
333: if (rem < 0)
334: continue;
335: (void)seteuid(userid);
336: tos = IPTOS_THROUGHPUT;
337: if (setsockopt(rem, IPPROTO_IP, IP_TOS,
338: (char *)&tos, sizeof(int)) < 0)
339: perror("rcp: setsockopt TOS (ignored)");
340: sink(1, argv + argc - 1);
341: (void)seteuid(0);
342: (void)close(rem);
343: rem = -1;
344: }
345: }
346:
347: verifydir(cp)
348: char *cp;
349: {
350: struct stat stb;
351:
352: if (stat(cp, &stb) >= 0) {
353: if ((stb.st_mode & S_IFMT) == S_IFDIR)
354: return;
355: errno = ENOTDIR;
356: }
357: error("rcp: %s: %s.\n", cp, strerror(errno));
358: exit(1);
359: }
360:
361: char *
362: colon(cp)
363: register char *cp;
364: {
365: for (; *cp; ++cp) {
366: if (*cp == ':')
367: return(cp);
368: if (*cp == '/')
369: return(0);
370: }
371: return(0);
372: }
373:
374: okname(cp0)
375: char *cp0;
376: {
377: register char *cp = cp0;
378: register int c;
379:
380: do {
381: c = *cp;
382: if (c & 0200)
383: goto bad;
384: if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
385: goto bad;
386: } while (*++cp);
387: return(1);
388: bad:
389: (void)fprintf(stderr, "rcp: invalid user name %s\n", cp0);
390: return(0);
391: }
392:
393: susystem(s)
394: char *s;
395: {
396: int status, pid, w;
397: register sig_t istat, qstat;
398:
399: if ((pid = vfork()) == 0) {
400: (void)setuid(userid);
401: execl(_PATH_BSHELL, "sh", "-c", s, (char *)0);
402: _exit(127);
403: }
404: istat = signal(SIGINT, SIG_IGN);
405: qstat = signal(SIGQUIT, SIG_IGN);
406: while ((w = wait(&status)) != pid && w != -1)
407: ;
408: if (w == -1)
409: status = -1;
410: (void)signal(SIGINT, istat);
411: (void)signal(SIGQUIT, qstat);
412: return(status);
413: }
414:
415: source(argc, argv)
416: int argc;
417: char **argv;
418: {
419: struct stat stb;
420: static BUF buffer;
421: BUF *bp;
422: off_t i;
423: int x, readerr, f, amt;
424: char *last, *name, buf[BUFSIZ];
425: BUF *allocbuf();
426:
427: for (x = 0; x < argc; x++) {
428: name = argv[x];
429: if ((f = open(name, O_RDONLY, 0)) < 0) {
430: error("rcp: %s: %s\n", name, strerror(errno));
431: continue;
432: }
433: if (fstat(f, &stb) < 0)
434: goto notreg;
435: switch (stb.st_mode&S_IFMT) {
436:
437: case S_IFREG:
438: break;
439:
440: case S_IFDIR:
441: if (iamrecursive) {
442: (void)close(f);
443: rsource(name, &stb);
444: continue;
445: }
446: /* FALLTHROUGH */
447: default:
448: notreg: (void)close(f);
449: error("rcp: %s: not a plain file\n", name);
450: continue;
451: }
452: last = rindex(name, '/');
453: if (last == 0)
454: last = name;
455: else
456: last++;
457: if (pflag) {
458: /*
459: * Make it compatible with possible future
460: * versions expecting microseconds.
461: */
462: (void)sprintf(buf, "T%ld 0 %ld 0\n", stb.st_mtime,
463: stb.st_atime);
464: (void)write(rem, buf, strlen(buf));
465: if (response() < 0) {
466: (void)close(f);
467: continue;
468: }
469: }
470: (void)sprintf(buf, "C%04o %ld %s\n", stb.st_mode&07777,
471: stb.st_size, last);
472: (void)write(rem, buf, strlen(buf));
473: if (response() < 0) {
474: (void)close(f);
475: continue;
476: }
477: if ((bp = allocbuf(&buffer, f, BUFSIZ)) == 0) {
478: (void)close(f);
479: continue;
480: }
481: readerr = 0;
482: for (i = 0; i < stb.st_size; i += bp->cnt) {
483: amt = bp->cnt;
484: if (i + amt > stb.st_size)
485: amt = stb.st_size - i;
486: if (readerr == 0 && read(f, bp->buf, amt) != amt)
487: readerr = errno;
488: (void)write(rem, bp->buf, amt);
489: }
490: (void)close(f);
491: if (readerr == 0)
492: (void)write(rem, "", 1);
493: else
494: error("rcp: %s: %s\n", name, strerror(readerr));
495: (void)response();
496: }
497: }
498:
499: rsource(name, statp)
500: char *name;
501: struct stat *statp;
502: {
503: DIR *d;
504: struct direct *dp;
505: char *last, *vect[1], path[MAXPATHLEN];
506:
507: if (!(d = opendir(name))) {
508: error("rcp: %s: %s\n", name, strerror(errno));
509: return;
510: }
511: last = rindex(name, '/');
512: if (last == 0)
513: last = name;
514: else
515: last++;
516: if (pflag) {
517: (void)sprintf(path, "T%ld 0 %ld 0\n", statp->st_mtime,
518: statp->st_atime);
519: (void)write(rem, path, strlen(path));
520: if (response() < 0) {
521: closedir(d);
522: return;
523: }
524: }
525: (void)sprintf(path, "D%04o %d %s\n", statp->st_mode&07777, 0, last);
526: (void)write(rem, path, strlen(path));
527: if (response() < 0) {
528: closedir(d);
529: return;
530: }
531: while (dp = readdir(d)) {
532: if (dp->d_ino == 0)
533: continue;
534: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
535: continue;
536: if (strlen(name) + 1 + strlen(dp->d_name) >= MAXPATHLEN - 1) {
537: error("%s/%s: name too long.\n", name, dp->d_name);
538: continue;
539: }
540: (void)sprintf(path, "%s/%s", name, dp->d_name);
541: vect[0] = path;
542: source(1, vect);
543: }
544: closedir(d);
545: (void)write(rem, "E\n", 2);
546: (void)response();
547: }
548:
549: response()
550: {
551: register char *cp;
552: char ch, resp, rbuf[BUFSIZ];
553:
554: if (read(rem, &resp, sizeof(resp)) != sizeof(resp))
555: lostconn();
556:
557: cp = rbuf;
558: switch(resp) {
559: case 0: /* ok */
560: return(0);
561: default:
562: *cp++ = resp;
563: /* FALLTHROUGH */
564: case 1: /* error, followed by err msg */
565: case 2: /* fatal error, "" */
566: do {
567: if (read(rem, &ch, sizeof(ch)) != sizeof(ch))
568: lostconn();
569: *cp++ = ch;
570: } while (cp < &rbuf[BUFSIZ] && ch != '\n');
571:
572: if (!iamremote)
573: (void)write(2, rbuf, cp - rbuf);
574: ++errs;
575: if (resp == 1)
576: return(-1);
577: exit(1);
578: }
579: /*NOTREACHED*/
580: }
581:
582: lostconn()
583: {
584: if (!iamremote)
585: (void)fprintf(stderr, "rcp: lost connection\n");
586: exit(1);
587: }
588:
589: sink(argc, argv)
590: int argc;
591: char **argv;
592: {
593: register char *cp;
594: static BUF buffer;
595: struct stat stb;
596: struct timeval tv[2];
597: enum { YES, NO, DISPLAYED } wrerr;
598: BUF *bp, *allocbuf();
599: off_t i, j;
600: char ch, *targ, *why;
601: int amt, count, exists, first, mask, mode;
602: int ofd, setimes, size, targisdir;
603: char *np, *vect[1], buf[BUFSIZ], *malloc();
604:
605: #define atime tv[0]
606: #define mtime tv[1]
607: #define SCREWUP(str) { why = str; goto screwup; }
608:
609: setimes = targisdir = 0;
610: mask = umask(0);
611: if (!pflag)
612: (void)umask(mask);
613: if (argc != 1) {
614: error("rcp: ambiguous target\n");
615: exit(1);
616: }
617: targ = *argv;
618: if (targetshouldbedirectory)
619: verifydir(targ);
620: (void)write(rem, "", 1);
621: if (stat(targ, &stb) == 0 && (stb.st_mode & S_IFMT) == S_IFDIR)
622: targisdir = 1;
623: for (first = 1;; first = 0) {
624: cp = buf;
625: if (read(rem, cp, 1) <= 0)
626: return;
627: if (*cp++ == '\n')
628: SCREWUP("unexpected <newline>");
629: do {
630: if (read(rem, &ch, sizeof(ch)) != sizeof(ch))
631: SCREWUP("lost connection");
632: *cp++ = ch;
633: } while (cp < &buf[BUFSIZ - 1] && ch != '\n');
634: *cp = 0;
635:
636: if (buf[0] == '\01' || buf[0] == '\02') {
637: if (iamremote == 0)
638: (void)write(2, buf + 1, strlen(buf + 1));
639: if (buf[0] == '\02')
640: exit(1);
641: errs++;
642: continue;
643: }
644: if (buf[0] == 'E') {
645: (void)write(rem, "", 1);
646: return;
647: }
648:
649: if (ch == '\n')
650: *--cp = 0;
651:
652: #define getnum(t) (t) = 0; while (isdigit(*cp)) (t) = (t) * 10 + (*cp++ - '0');
653: cp = buf;
654: if (*cp == 'T') {
655: setimes++;
656: cp++;
657: getnum(mtime.tv_sec);
658: if (*cp++ != ' ')
659: SCREWUP("mtime.sec not delimited");
660: getnum(mtime.tv_usec);
661: if (*cp++ != ' ')
662: SCREWUP("mtime.usec not delimited");
663: getnum(atime.tv_sec);
664: if (*cp++ != ' ')
665: SCREWUP("atime.sec not delimited");
666: getnum(atime.tv_usec);
667: if (*cp++ != '\0')
668: SCREWUP("atime.usec not delimited");
669: (void)write(rem, "", 1);
670: continue;
671: }
672: if (*cp != 'C' && *cp != 'D') {
673: /*
674: * Check for the case "rcp remote:foo\* local:bar".
675: * In this case, the line "No match." can be returned
676: * by the shell before the rcp command on the remote is
677: * executed so the ^Aerror_message convention isn't
678: * followed.
679: */
680: if (first) {
681: error("%s\n", cp);
682: exit(1);
683: }
684: SCREWUP("expected control record");
685: }
686: mode = 0;
687: for (++cp; cp < buf + 5; cp++) {
688: if (*cp < '0' || *cp > '7')
689: SCREWUP("bad mode");
690: mode = (mode << 3) | (*cp - '0');
691: }
692: if (*cp++ != ' ')
693: SCREWUP("mode not delimited");
694: size = 0;
695: while (isdigit(*cp))
696: size = size * 10 + (*cp++ - '0');
697: if (*cp++ != ' ')
698: SCREWUP("size not delimited");
699: if (targisdir) {
700: static char *namebuf;
701: static int cursize;
702: int need;
703:
704: need = strlen(targ) + strlen(cp) + 250;
705: if (need > cursize) {
706: if (!(namebuf = malloc((u_int)need)))
707: error("out of memory\n");
708: }
709: (void)sprintf(namebuf, "%s%s%s", targ,
710: *targ ? "/" : "", cp);
711: np = namebuf;
712: }
713: else
714: np = targ;
715: exists = stat(np, &stb) == 0;
716: if (buf[0] == 'D') {
717: if (exists) {
718: if ((stb.st_mode&S_IFMT) != S_IFDIR) {
719: errno = ENOTDIR;
720: goto bad;
721: }
722: if (pflag)
723: (void)chmod(np, mode);
724: } else if (mkdir(np, mode) < 0)
725: goto bad;
726: vect[0] = np;
727: sink(1, vect);
728: if (setimes) {
729: setimes = 0;
730: if (utimes(np, tv) < 0)
731: error("rcp: can't set times on %s: %s\n",
732: np, strerror(errno));
733: }
734: continue;
735: }
736: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
737: bad: error("rcp: %s: %s\n", np, strerror(errno));
738: continue;
739: }
740: if (exists && pflag)
741: (void)fchmod(ofd, mode);
742: (void)write(rem, "", 1);
743: if ((bp = allocbuf(&buffer, ofd, BUFSIZ)) == 0) {
744: (void)close(ofd);
745: continue;
746: }
747: cp = bp->buf;
748: count = 0;
749: wrerr = NO;
750: for (i = 0; i < size; i += BUFSIZ) {
751: amt = BUFSIZ;
752: if (i + amt > size)
753: amt = size - i;
754: count += amt;
755: do {
756: j = read(rem, cp, amt);
757: if (j <= 0) {
758: error("rcp: %s\n",
759: j ? strerror(errno) :
760: "dropped connection");
761: exit(1);
762: }
763: amt -= j;
764: cp += j;
765: } while (amt > 0);
766: if (count == bp->cnt) {
767: if (wrerr == NO &&
768: write(ofd, bp->buf, count) != count)
769: wrerr = YES;
770: count = 0;
771: cp = bp->buf;
772: }
773: }
774: if (count != 0 && wrerr == NO &&
775: write(ofd, bp->buf, count) != count)
776: wrerr = YES;
777: if (ftruncate(ofd, size)) {
778: error("rcp: can't truncate %s: %s\n", np,
779: strerror(errno));
780: wrerr = DISPLAYED;
781: }
782: (void)close(ofd);
783: (void)response();
784: if (setimes && wrerr == NO) {
785: setimes = 0;
786: if (utimes(np, tv) < 0) {
787: error("rcp: can't set times on %s: %s\n",
788: np, strerror(errno));
789: wrerr = DISPLAYED;
790: }
791: }
792: switch(wrerr) {
793: case YES:
794: error("rcp: %s: %s\n", np, strerror(errno));
795: break;
796: case NO:
797: (void)write(rem, "", 1);
798: break;
799: case DISPLAYED:
800: break;
801: }
802: }
803: screwup:
804: error("rcp: protocol screwup: %s\n", why);
805: exit(1);
806: }
807:
808: BUF *
809: allocbuf(bp, fd, blksize)
810: BUF *bp;
811: int fd, blksize;
812: {
813: struct stat stb;
814: int size;
815: char *malloc();
816:
817: if (fstat(fd, &stb) < 0) {
818: error("rcp: fstat: %s\n", strerror(errno));
819: return(0);
820: }
821: size = roundup(stb.st_blksize, blksize);
822: if (size == 0)
823: size = blksize;
824: if (bp->cnt < size) {
825: if (bp->buf != 0)
826: free(bp->buf);
827: bp->buf = (char *)malloc((u_int)size);
828: if (!bp->buf) {
829: error("rcp: malloc: out of memory\n");
830: return(0);
831: }
832: }
833: bp->cnt = size;
834: return(bp);
835: }
836:
837: /* VARARGS1 */
838: error(fmt, a1, a2, a3)
839: char *fmt;
840: int a1, a2, a3;
841: {
842: static FILE *fp;
843:
844: ++errs;
845: if (!fp && !(fp = fdopen(rem, "w")))
846: return;
847: (void)fprintf(fp, "%c", 0x01);
848: (void)fprintf(fp, fmt, a1, a2, a3);
849: (void)fflush(fp);
850: if (!iamremote)
851: (void)fprintf(stderr, fmt, a1, a2, a3);
852: }
853:
854: nospace()
855: {
856: (void)fprintf(stderr, "rcp: out of memory.\n");
857: exit(1);
858: }
859:
860:
861: usage()
862: {
863: #ifdef KERBEROS
864: (void)fprintf(stderr, "%s\n\t%s\n",
865: "usage: rcp [-k realm] [-px] f1 f2",
866: "or: rcp [-k realm] [-rpx] f1 ... fn directory");
867: #else
868: (void)fprintf(stderr,
869: "usage: rcp [-p] f1 f2; or: rcp [-rp] f1 ... fn directory\n");
870: #endif
871: exit(1);
872: }
873:
874: #ifdef KERBEROS
875: old_warning(str)
876: char *str;
877: {
878: (void)fprintf(stderr, "rcp: warning: %s, using standard rcp\n", str);
879: }
880:
881: int
882: kerberos(host, bp, locuser, user)
883:
884: char **host, *bp, *locuser, *user;
885: {
886: struct servent *sp;
887:
888: again:
889: if (use_kerberos) {
890: rem = KSUCCESS;
891: errno = 0;
892: if (dest_realm == NULL)
893: dest_realm = krb_realmofhost(*host);
894:
895: if (encrypt)
896: rem = krcmd_mutual(
897: host, port,
898: user, bp, 0,
899: dest_realm,
900: &cred, schedule);
901: else
902: rem = krcmd(
903: host, port,
904: user, bp, 0, dest_realm);
905:
906: if (rem < 0) {
907: use_kerberos = 0;
908: sp = getservbyname("shell", "tcp");
909: if (sp == NULL) {
910: (void)fprintf(stderr,
911: "rcp: unknown service shell/tcp\n");
912: exit(1);
913: }
914: if (errno == ECONNREFUSED)
915: old_warning(
916: "remote host doesn't support Kerberos");
917:
918: if (errno == ENOENT)
919: old_warning(
920: "Can't provide Kerberos auth data");
921: port = sp->s_port;
922: goto again;
923: }
924: } else {
925: if (encrypt) {
926: fprintf(stderr,
927: "The -x option requires Kerberos authentication\n");
928: exit(1);
929: }
930: rem = rcmd(host, sp->s_port, locuser, user, bp, 0);
931: }
932: return(rem);
933: }
934: #endif /* KERBEROS */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.