/* * Copyright (c) 1983, 1990, 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "bsd_locl.h" RCSID("$Id: rcp.c,v 1.52.2.1 2000/06/23 02:35:16 assar Exp $"); /* Globals */ static char dst_realm_buf[REALM_SZ]; static char *dest_realm = NULL; static int use_kerberos = 1; static int doencrypt = 0; #define OPTIONS "dfKk:prtxl:" static char *user_name = NULL; /* Given as -l option. */ static int errs, rem; static struct passwd *pwd; static u_short port; static uid_t userid; static int pflag, iamremote, iamrecursive, targetshouldbedirectory; static int argc_copy; static char **argv_copy; #define CMDNEEDS 64 static char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ void rsource(char *name, struct stat *statp); #define SERVICE_NAME "rcmd" CREDENTIALS cred; MSG_DAT msg_data; struct sockaddr_in foreign_addr, local_addr; Key_schedule schedule; KTEXT_ST ticket; AUTH_DAT kdata; static void send_auth(char *h, char *r) { int lslen, fslen, status; long opts; lslen = sizeof(struct sockaddr_in); if (getsockname(rem, (struct sockaddr *)&local_addr, &lslen) < 0) err(1, "getsockname"); fslen = sizeof(struct sockaddr_in); if (getpeername(rem, (struct sockaddr *)&foreign_addr, &fslen) < 0) err(1, "getpeername"); if ((r == NULL) || (*r == '\0')) r = krb_realmofhost(h); opts = KOPT_DO_MUTUAL; if ((status = krb_sendauth(opts, rem, &ticket, SERVICE_NAME, h, r, (unsigned long)getpid(), &msg_data, &cred, schedule, &local_addr, &foreign_addr, "KCMDV0.1")) != KSUCCESS) errx(1, "krb_sendauth failure: %s", krb_get_err_text(status)); } static void answer_auth(void) { int lslen, fslen, status; long opts; char inst[INST_SZ], v[9]; lslen = sizeof(struct sockaddr_in); if (getsockname(rem, (struct sockaddr *)&local_addr, &lslen) < 0) err(1, "getsockname"); fslen = sizeof(struct sockaddr_in); if(getpeername(rem, (struct sockaddr *)&foreign_addr, &fslen) < 0) err(1, "getperrname"); k_getsockinst(rem, inst, sizeof(inst)); opts = KOPT_DO_MUTUAL; if ((status = krb_recvauth(opts, rem, &ticket, SERVICE_NAME, inst, &foreign_addr, &local_addr, &kdata, "", schedule, v)) != KSUCCESS) errx(1, "krb_recvauth failure: %s", krb_get_err_text(status)); } static int des_read(int fd, char *buf, int len) { if (doencrypt) return(des_enc_read(fd, buf, len, schedule, (iamremote? &kdata.session : &cred.session))); else return(read(fd, buf, len)); } static int des_write(int fd, char *buf, int len) { if (doencrypt) return(des_enc_write(fd, buf, len, schedule, (iamremote? &kdata.session : &cred.session))); else return(write(fd, buf, len)); } static void run_err(const char *fmt, ...) #ifdef __GNUC__ __attribute__ ((format (printf, 1, 2))) #endif ; static void run_err(const char *fmt, ...) { char errbuf[1024]; va_list args; va_start(args, fmt); ++errs; #define RCPERR "\001rcp: " strlcpy (errbuf, RCPERR, sizeof(errbuf)); vsnprintf (errbuf + strlen(errbuf), sizeof(errbuf) - strlen(errbuf), fmt, args); strlcat (errbuf, "\n", sizeof(errbuf)); des_write (rem, errbuf, strlen(errbuf)); if (!iamremote) vwarnx(fmt, args); va_end(args); } static void verifydir(char *cp) { struct stat stb; if (!stat(cp, &stb)) { if (S_ISDIR(stb.st_mode)) return; errno = ENOTDIR; } run_err("%s: %s", cp, strerror(errno)); exit(1); } #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) static BUF * allocbuf(BUF *bp, int fd, int blksize) { struct stat stb; size_t size; if (fstat(fd, &stb) < 0) { run_err("fstat: %s", strerror(errno)); return (0); } #ifdef HAVE_ST_BLKSIZE size = ROUNDUP(stb.st_blksize, blksize); #else size = blksize; #endif if (size == 0) size = blksize; if (bp->cnt >= size) return (bp); if (bp->buf == NULL) bp->buf = malloc(size); else bp->buf = realloc(bp->buf, size); if (bp->buf == NULL) { bp->cnt = 0; run_err("%s", strerror(errno)); return (0); } bp->cnt = size; return (bp); } static void usage(void) { fprintf(stderr, "%s\n\t%s\n", "usage: rcp [-Kpx] [-k realm] f1 f2", "or: rcp [-Kprx] [-k realm] f1 ... fn directory"); exit(1); } static void oldw(const char *s) { char *rstar_no_warn = getenv("RSTAR_NO_WARN"); if (rstar_no_warn == 0) rstar_no_warn = ""; if (strncmp(rstar_no_warn, "yes", 3) != 0) warnx("%s, using standard rcp", s); } static RETSIGTYPE lostconn(int signo) { if (!iamremote) warnx("lost connection"); exit(1); } static int response(void) { char ch, *cp, resp, rbuf[BUFSIZ]; if (des_read(rem, &resp, sizeof(resp)) != sizeof(resp)) lostconn(0); cp = rbuf; switch(resp) { case 0: /* ok */ return (0); default: *cp++ = resp; /* FALLTHROUGH */ case 1: /* error, followed by error msg */ case 2: /* fatal error, "" */ do { if (des_read(rem, &ch, sizeof(ch)) != sizeof(ch)) lostconn(0); *cp++ = ch; } while (cp < &rbuf[BUFSIZ] && ch != '\n'); if (!iamremote) write(STDERR_FILENO, rbuf, cp - rbuf); ++errs; if (resp == 1) return (-1); exit(1); } /* NOTREACHED */ } static void source(int argc, char **argv) { struct stat stb; static BUF buffer; BUF *bp; off_t i; int amt, fd, haderr, indx, result; char *last, *name, buf[BUFSIZ]; for (indx = 0; indx < argc; ++indx) { name = argv[indx]; if ((fd = open(name, O_RDONLY, 0)) < 0) goto syserr; if (fstat(fd, &stb)) { syserr: run_err("%s: %s", name, strerror(errno)); goto next; } switch (stb.st_mode & S_IFMT) { case S_IFREG: break; case S_IFDIR: if (iamrecursive) { rsource(name, &stb); goto next; } /* FALLTHROUGH */ default: run_err("%s: not a regular file", name); goto next; } if ((last = strrchr(name, '/')) == NULL) last = name; else ++last; if (pflag) { /* * Make it compatible with possible future * versions expecting microseconds. */ snprintf(buf, sizeof(buf), "T%ld 0 %ld 0\n", (long)stb.st_mtime, (long)stb.st_atime); des_write(rem, buf, strlen(buf)); if (response() < 0) goto next; } snprintf(buf, sizeof(buf), "C%04o %ld %s\n", (int)stb.st_mode & MODEMASK, (long) stb.st_size, last); des_write(rem, buf, strlen(buf)); if (response() < 0) goto next; if ((bp = allocbuf(&buffer, fd, BUFSIZ)) == NULL) { next: close(fd); continue; } /* Keep writing after an error so that we stay sync'd up. */ for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { amt = bp->cnt; if (i + amt > stb.st_size) amt = stb.st_size - i; if (!haderr) { result = read(fd, bp->buf, amt); if (result != amt) haderr = result >= 0 ? EIO : errno; } if (haderr) des_write(rem, bp->buf, amt); else { result = des_write(rem, bp->buf, amt); if (result != amt) haderr = result >= 0 ? EIO : errno; } } if (close(fd) && !haderr) haderr = errno; if (!haderr) des_write(rem, "", 1); else run_err("%s: %s", name, strerror(haderr)); response(); } } void rsource(char *name, struct stat *statp) { DIR *dirp; struct dirent *dp; char *last, *vect[1], path[MaxPathLen]; char *p; if (!(dirp = opendir(name))) { run_err("%s: %s", name, strerror(errno)); return; } for (p = name + strlen(name) - 1; p >= name && *p == '/'; --p) *p = '\0'; last = strrchr(name, '/'); if (last == 0) last = name; else last++; if (pflag) { snprintf(path, sizeof(path), "T%ld 0 %ld 0\n", (long)statp->st_mtime, (long)statp->st_atime); des_write(rem, path, strlen(path)); if (response() < 0) { closedir(dirp); return; } } snprintf(path, sizeof(path), "D%04o %d %s\n", (int)statp->st_mode & MODEMASK, 0, last); des_write(rem, path, strlen(path)); if (response() < 0) { closedir(dirp); return; } while ((dp = readdir(dirp))) { if (dp->d_ino == 0) continue; if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) continue; if (strlen(name) + 1 + strlen(dp->d_name) >= MaxPathLen - 1) { run_err("%s/%s: name too long", name, dp->d_name); continue; } if (snprintf(path, sizeof(path), "%s/%s", name, dp->d_name) >= sizeof(path)) { run_err("%s/%s: name too long", name, dp->d_name); continue; } vect[0] = path; source(1, vect); } closedir(dirp); des_write(rem, "E\n", 2); response(); } static int kerberos(char **host, char *bp, char *locuser, char *user) { int sock = -1, err; if (use_kerberos) { paranoid_setuid(getuid()); rem = KSUCCESS; errno = 0; if (dest_realm == NULL) dest_realm = krb_realmofhost(*host); #if 0 rem = krcmd(host, port, user, bp, 0, dest_realm); #else err = kcmd( &sock, host, port, NULL, /* locuser not used */ user, bp, 0, &ticket, SERVICE_NAME, dest_realm, (CREDENTIALS *) NULL, /* credentials not used */ 0, /* key schedule not used */ (MSG_DAT *) NULL, /* MSG_DAT not used */ (struct sockaddr_in *) NULL, /* local addr not used */ (struct sockaddr_in *) NULL, /* foreign addr not used */ 0L); /* authopts */ if (err > KSUCCESS && err < MAX_KRB_ERRORS) { warnx("kcmd: %s", krb_get_err_text(err)); rem = -1; } else if (err < 0) rem = -1; else rem = sock; #endif if (rem < 0) { if (errno == ECONNREFUSED) oldw("remote host doesn't support Kerberos"); else if (errno == ENOENT) oldw("can't provide Kerberos authentication data"); execv(_PATH_RCP, argv_copy); } } else { if (doencrypt) errx(1, "the -x option requires Kerberos authentication"); if (geteuid() != 0) { errx(1, "not installed setuid root, " "only root may use non kerberized rcp"); } rem = rcmd(host, port, locuser, user, bp, 0); } return (rem); } static void toremote(char *targ, int argc, char **argv) { int i, len; #ifdef IP_TOS int tos; #endif char *bp, *host, *src, *suser, *thost, *tuser; *targ++ = 0; if (*targ == 0) targ = "."; if ((thost = strchr(argv[argc - 1], '@'))) { /* user@host */ *thost++ = 0; tuser = argv[argc - 1]; if (*tuser == '\0') tuser = NULL; else if (!okname(tuser)) exit(1); } else { thost = argv[argc - 1]; tuser = user_name; } for (i = 0; i < argc - 1; i++) { src = colon(argv[i]); if (src) { /* remote to remote */ *src++ = 0; if (*src == 0) src = "."; host = strchr(argv[i], '@'); if (host) { *host++ = 0; suser = argv[i]; if (*suser == '\0') suser = pwd->pw_name; else if (!okname(suser)) continue; asprintf(&bp, "%s %s -l %s -n %s %s '%s%s%s:%s'", _PATH_RSH, host, suser, cmd, src, tuser ? tuser : "", tuser ? "@" : "", thost, targ); } else asprintf(&bp, "exec %s %s -n %s %s '%s%s%s:%s'", _PATH_RSH, argv[i], cmd, src, tuser ? tuser : "", tuser ? "@" : "", thost, targ); if(bp == NULL) errx(1, "out of memory"); susystem(bp, userid); free(bp); } else { /* local to remote */ if (rem == -1) { len = strlen(targ) + CMDNEEDS + 20; if (!(bp = malloc(len))) err(1, " "); snprintf(bp, len, "%s -t %s", cmd, targ); host = thost; if (use_kerberos) rem = kerberos(&host, bp, #ifdef __CYGWIN32__ tuser, #else pwd->pw_name, #endif tuser ? tuser : pwd->pw_name); else rem = rcmd(&host, port, #ifdef __CYGWIN32__ tuser, #else pwd->pw_name, #endif tuser ? tuser : pwd->pw_name, bp, 0); if (rem < 0) exit(1); #if defined(IP_TOS) && defined(HAVE_SETSOCKOPT) tos = IPTOS_THROUGHPUT; if (setsockopt(rem, IPPROTO_IP, IP_TOS, (void *)&tos, sizeof(int)) < 0) warn("TOS (ignored)"); #endif /* IP_TOS */ if (doencrypt) send_auth(host, dest_realm); if (response() < 0) exit(1); free(bp); paranoid_setuid(userid); } source(1, argv+i); } } } static void sink(int argc, char **argv) { static BUF buffer; struct stat stb; struct timeval tv[2]; enum { YES, NO, DISPLAYED } wrerr; BUF *bp; off_t i, j; int amt, count, exists, first, mask, mode, ofd, omode; int setimes, size, targisdir, wrerrno=0; char ch, *cp, *np, *targ, *why, *vect[1], buf[BUFSIZ]; #define atime tv[0] #define mtime tv[1] #define SCREWUP(str) { why = str; goto screwup; } setimes = targisdir = 0; mask = umask(0); if (!pflag) umask(mask); if (argc != 1) { run_err("ambiguous target"); exit(1); } targ = *argv; if (targetshouldbedirectory) verifydir(targ); des_write(rem, "", 1); if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) targisdir = 1; for (first = 1;; first = 0) { cp = buf; if (des_read(rem, cp, 1) <= 0) return; if (*cp++ == '\n') SCREWUP("unexpected "); do { if (des_read(rem, &ch, sizeof(ch)) != sizeof(ch)) SCREWUP("lost connection"); *cp++ = ch; } while (cp < &buf[BUFSIZ - 1] && ch != '\n'); *cp = 0; if (buf[0] == '\01' || buf[0] == '\02') { if (iamremote == 0) write(STDERR_FILENO, buf + 1, strlen(buf + 1)); if (buf[0] == '\02') exit(1); ++errs; continue; } if (buf[0] == 'E') { des_write(rem, "", 1); return; } if (ch == '\n') *--cp = 0; #define getnum(t) \ do { \ (t) = 0; \ while (isdigit((unsigned char)*cp)) \ (t) = (t) * 10 + (*cp++ - '0'); \ } while(0) cp = buf; if (*cp == 'T') { setimes++; cp++; getnum(mtime.tv_sec); if (*cp++ != ' ') SCREWUP("mtime.sec not delimited"); getnum(mtime.tv_usec); if (*cp++ != ' ') SCREWUP("mtime.usec not delimited"); getnum(atime.tv_sec); if (*cp++ != ' ') SCREWUP("atime.sec not delimited"); getnum(atime.tv_usec); if (*cp++ != '\0') SCREWUP("atime.usec not delimited"); des_write(rem, "", 1); continue; } if (*cp != 'C' && *cp != 'D') { /* * Check for the case "rcp remote:foo\* local:bar". * In this case, the line "No match." can be returned * by the shell before the rcp command on the remote is * executed so the ^Aerror_message convention isn't * followed. */ if (first) { run_err("%s", cp); exit(1); } SCREWUP("expected control record"); } mode = 0; for (++cp; cp < buf + 5; cp++) { if (*cp < '0' || *cp > '7') SCREWUP("bad mode"); mode = (mode << 3) | (*cp - '0'); } if (*cp++ != ' ') SCREWUP("mode not delimited"); for (size = 0; isdigit((unsigned char)*cp);) size = size * 10 + (*cp++ - '0'); if (*cp++ != ' ') SCREWUP("size not delimited"); if (targisdir) { static char *namebuf; static int cursize; size_t need; need = strlen(targ) + strlen(cp) + 250; if (need > cursize) { if (!(namebuf = malloc(need))) run_err("%s", strerror(errno)); } snprintf(namebuf, need, "%s%s%s", targ, *targ ? "/" : "", cp); np = namebuf; } else np = targ; exists = stat(np, &stb) == 0; if (buf[0] == 'D') { int mod_flag = pflag; if (exists) { if (!S_ISDIR(stb.st_mode)) { errno = ENOTDIR; goto bad; } if (pflag) chmod(np, mode); } else { /* Handle copying from a read-only directory */ mod_flag = 1; if (mkdir(np, mode | S_IRWXU) < 0) goto bad; } vect[0] = np; sink(1, vect); if (setimes) { struct utimbuf times; times.actime = atime.tv_sec; times.modtime = mtime.tv_sec; setimes = 0; if (utime(np, ×) < 0) run_err("%s: set times: %s", np, strerror(errno)); } if (mod_flag) chmod(np, mode); continue; } omode = mode; mode |= S_IWRITE; if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { bad: run_err("%s: %s", np, strerror(errno)); continue; } des_write(rem, "", 1); if ((bp = allocbuf(&buffer, ofd, BUFSIZ)) == NULL) { close(ofd); continue; } cp = bp->buf; wrerr = NO; for (count = i = 0; i < size; i += BUFSIZ) { amt = BUFSIZ; if (i + amt > size) amt = size - i; count += amt; do { j = des_read(rem, cp, amt); if (j <= 0) { run_err("%s", j ? strerror(errno) : "dropped connection"); exit(1); } amt -= j; cp += j; } while (amt > 0); if (count == bp->cnt) { /* Keep reading so we stay sync'd up. */ if (wrerr == NO) { j = write(ofd, bp->buf, count); if (j != count) { wrerr = YES; wrerrno = j >= 0 ? EIO : errno; } } count = 0; cp = bp->buf; } } if (count != 0 && wrerr == NO && (j = write(ofd, bp->buf, count)) != count) { wrerr = YES; wrerrno = j >= 0 ? EIO : errno; } if (ftruncate(ofd, size)) { run_err("%s: truncate: %s", np, strerror(errno)); wrerr = DISPLAYED; } if (pflag) { if (exists || omode != mode) #ifdef HAVE_FCHMOD if (fchmod(ofd, omode)) #else if (chmod(np, omode)) #endif run_err("%s: set mode: %s", np, strerror(errno)); } else { if (!exists && omode != mode) #ifdef HAVE_FCHMOD if (fchmod(ofd, omode & ~mask)) #else if (chmod(np, omode & ~mask)) #endif run_err("%s: set mode: %s", np, strerror(errno)); } close(ofd); response(); if (setimes && wrerr == NO) { struct utimbuf times; times.actime = atime.tv_sec; times.modtime = mtime.tv_sec; setimes = 0; if (utime(np, ×) < 0) { run_err("%s: set times: %s", np, strerror(errno)); wrerr = DISPLAYED; } } switch(wrerr) { case YES: run_err("%s: %s", np, strerror(wrerrno)); break; case NO: des_write(rem, "", 1); break; case DISPLAYED: break; } } screwup: run_err("protocol error: %s", why); exit(1); } static void tolocal(int argc, char **argv) { int i, len; #ifdef IP_TOS int tos; #endif char *bp, *host, *src, *suser; for (i = 0; i < argc - 1; i++) { if (!(src = colon(argv[i]))) { /* Local to local. */ len = strlen(_PATH_CP) + strlen(argv[i]) + strlen(argv[argc - 1]) + 20; if (!(bp = malloc(len))) err(1, " "); snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP, iamrecursive ? " -r" : "", pflag ? " -p" : "", argv[i], argv[argc - 1]); if (susystem(bp, userid)) ++errs; free(bp); continue; } *src++ = 0; if (*src == 0) src = "."; if ((host = strchr(argv[i], '@')) == NULL) { #ifdef __CYGWIN32__ errx (1, "Sorry, you need to specify the username"); #else host = argv[i]; suser = pwd->pw_name; if (user_name) suser = user_name; #endif } else { *host++ = 0; suser = argv[i]; if (*suser == '\0') #ifdef __CYGWIN32__ errx (1, "Sorry, you need to specify the username"); #else suser = pwd->pw_name; #endif else if (!okname(suser)) continue; } len = strlen(src) + CMDNEEDS + 20; if ((bp = malloc(len)) == NULL) err(1, " "); snprintf(bp, len, "%s -f %s", cmd, src); rem = use_kerberos ? kerberos(&host, bp, #ifndef __CYGWIN32__ pwd->pw_name, #else suser, #endif suser) : rcmd(&host, port, #ifndef __CYGWIN32__ pwd->pw_name, #else suser, #endif suser, bp, 0); free(bp); if (rem < 0) { ++errs; continue; } seteuid(userid); #if defined(IP_TOS) && defined(HAVE_SETSOCKOPT) tos = IPTOS_THROUGHPUT; if (setsockopt(rem, IPPROTO_IP, IP_TOS, (void *)&tos, sizeof(int)) < 0) warn("TOS (ignored)"); #endif /* IP_TOS */ if (doencrypt) send_auth(host, dest_realm); sink(1, argv + argc - 1); seteuid(0); close(rem); rem = -1; } } int main(int argc, char **argv) { int ch, fflag, tflag; char *targ; int i; set_progname(argv[0]); /* * Prepare for execing ourselves. */ argc_copy = argc + 1; argv_copy = malloc((argc_copy + 1) * sizeof(*argv_copy)); if (argv_copy == NULL) err(1, "malloc"); argv_copy[0] = argv[0]; argv_copy[1] = "-K"; for(i = 1; i < argc; ++i) { argv_copy[i + 1] = strdup(argv[i]); if (argv_copy[i + 1] == NULL) errx(1, "strdup: out of memory"); } argv_copy[argc + 1] = NULL; fflag = tflag = 0; while ((ch = getopt(argc, argv, OPTIONS)) != -1) switch(ch) { /* User-visible flags. */ case 'K': use_kerberos = 0; break; case 'k': dest_realm = dst_realm_buf; strlcpy(dst_realm_buf, optarg, REALM_SZ); break; case 'x': doencrypt = 1; LEFT_JUSTIFIED = 1; break; case 'p': pflag = 1; break; case 'r': iamrecursive = 1; break; /* Server options. */ case 'd': targetshouldbedirectory = 1; break; case 'f': /* "from" */ iamremote = 1; fflag = 1; break; case 't': /* "to" */ iamremote = 1; tflag = 1; break; case 'l': user_name = optarg; break; case '?': default: usage(); } argc -= optind; argv += optind; /* Rcp implements encrypted file transfer without using the * kshell service, pass 0 for no encryption */ port = get_shell_port(use_kerberos, 0); userid = getuid(); #ifndef __CYGWIN32__ if ((pwd = k_getpwuid(userid)) == NULL) errx(1, "unknown user %d", (int)userid); #endif rem = STDIN_FILENO; /* XXX */ if (fflag || tflag) { if (doencrypt) answer_auth(); if(fflag) response(); if(do_osfc2_magic(pwd->pw_uid)) exit(1); paranoid_setuid(userid); if (k_hasafs()) { /* Sometimes we will need cell specific tokens * to be able to read and write files, thus, * the token stuff done in rshd might not * suffice. */ char cell[64]; if (k_afs_cell_of_file(pwd->pw_dir, cell, sizeof(cell)) == 0) krb_afslog(cell, 0); krb_afslog(0, 0); } if(fflag) source(argc, argv); else sink(argc, argv); exit(errs); } if (argc < 2) usage(); if (argc > 2) targetshouldbedirectory = 1; rem = -1; /* Command to be executed on remote system using "rsh". */ snprintf(cmd, sizeof(cmd), "rcp%s%s%s%s", iamrecursive ? " -r" : "", (doencrypt && use_kerberos ? " -x" : ""), pflag ? " -p" : "", targetshouldbedirectory ? " -d" : ""); signal(SIGPIPE, lostconn); if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */ toremote(targ, argc, argv); else { tolocal(argc, argv); /* Dest is local host. */ if (targetshouldbedirectory) verifydir(argv[argc - 1]); } exit(errs); }