1048 lines
24 KiB
C
1048 lines
24 KiB
C
/*
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* Copyright (c) 1983, 1990, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "bsd_locl.h"
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RCSID("$Id: rcp.c,v 1.52.2.1 2000/06/23 02:35:16 assar Exp $");
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/* Globals */
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static char dst_realm_buf[REALM_SZ];
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static char *dest_realm = NULL;
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static int use_kerberos = 1;
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static int doencrypt = 0;
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#define OPTIONS "dfKk:prtxl:"
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static char *user_name = NULL; /* Given as -l option. */
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static int errs, rem;
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static struct passwd *pwd;
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static u_short port;
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static uid_t userid;
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static int pflag, iamremote, iamrecursive, targetshouldbedirectory;
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static int argc_copy;
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static char **argv_copy;
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#define CMDNEEDS 64
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static char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
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void rsource(char *name, struct stat *statp);
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#define SERVICE_NAME "rcmd"
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CREDENTIALS cred;
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MSG_DAT msg_data;
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struct sockaddr_in foreign_addr, local_addr;
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Key_schedule schedule;
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KTEXT_ST ticket;
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AUTH_DAT kdata;
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static void
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send_auth(char *h, char *r)
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{
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int lslen, fslen, status;
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long opts;
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lslen = sizeof(struct sockaddr_in);
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if (getsockname(rem, (struct sockaddr *)&local_addr, &lslen) < 0)
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err(1, "getsockname");
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fslen = sizeof(struct sockaddr_in);
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if (getpeername(rem, (struct sockaddr *)&foreign_addr, &fslen) < 0)
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err(1, "getpeername");
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if ((r == NULL) || (*r == '\0'))
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r = krb_realmofhost(h);
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opts = KOPT_DO_MUTUAL;
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if ((status = krb_sendauth(opts, rem, &ticket, SERVICE_NAME, h, r,
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(unsigned long)getpid(), &msg_data, &cred,
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schedule, &local_addr,
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&foreign_addr, "KCMDV0.1")) != KSUCCESS)
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errx(1, "krb_sendauth failure: %s", krb_get_err_text(status));
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}
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static void
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answer_auth(void)
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{
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int lslen, fslen, status;
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long opts;
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char inst[INST_SZ], v[9];
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lslen = sizeof(struct sockaddr_in);
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if (getsockname(rem, (struct sockaddr *)&local_addr, &lslen) < 0)
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err(1, "getsockname");
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fslen = sizeof(struct sockaddr_in);
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if(getpeername(rem, (struct sockaddr *)&foreign_addr, &fslen) < 0)
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err(1, "getperrname");
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k_getsockinst(rem, inst, sizeof(inst));
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opts = KOPT_DO_MUTUAL;
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if ((status = krb_recvauth(opts, rem, &ticket, SERVICE_NAME, inst,
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&foreign_addr, &local_addr,
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&kdata, "", schedule, v)) != KSUCCESS)
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errx(1, "krb_recvauth failure: %s", krb_get_err_text(status));
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}
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static int
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des_read(int fd, char *buf, int len)
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{
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if (doencrypt)
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return(des_enc_read(fd, buf, len, schedule,
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(iamremote? &kdata.session : &cred.session)));
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else
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return(read(fd, buf, len));
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}
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static int
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des_write(int fd, char *buf, int len)
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{
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if (doencrypt)
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return(des_enc_write(fd, buf, len, schedule,
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(iamremote? &kdata.session : &cred.session)));
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else
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return(write(fd, buf, len));
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}
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static void run_err(const char *fmt, ...)
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#ifdef __GNUC__
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__attribute__ ((format (printf, 1, 2)))
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#endif
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;
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static void
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run_err(const char *fmt, ...)
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{
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char errbuf[1024];
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va_list args;
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va_start(args, fmt);
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++errs;
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#define RCPERR "\001rcp: "
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strlcpy (errbuf, RCPERR, sizeof(errbuf));
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vsnprintf (errbuf + strlen(errbuf),
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sizeof(errbuf) - strlen(errbuf),
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fmt, args);
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strlcat (errbuf, "\n", sizeof(errbuf));
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des_write (rem, errbuf, strlen(errbuf));
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if (!iamremote)
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vwarnx(fmt, args);
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va_end(args);
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}
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static void
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verifydir(char *cp)
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{
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struct stat stb;
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if (!stat(cp, &stb)) {
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if (S_ISDIR(stb.st_mode))
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return;
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errno = ENOTDIR;
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}
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run_err("%s: %s", cp, strerror(errno));
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exit(1);
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}
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#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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static BUF *
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allocbuf(BUF *bp, int fd, int blksize)
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{
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struct stat stb;
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size_t size;
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if (fstat(fd, &stb) < 0) {
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run_err("fstat: %s", strerror(errno));
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return (0);
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}
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#ifdef HAVE_ST_BLKSIZE
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size = ROUNDUP(stb.st_blksize, blksize);
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#else
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size = blksize;
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#endif
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if (size == 0)
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size = blksize;
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if (bp->cnt >= size)
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return (bp);
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if (bp->buf == NULL)
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bp->buf = malloc(size);
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else
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bp->buf = realloc(bp->buf, size);
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if (bp->buf == NULL) {
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bp->cnt = 0;
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run_err("%s", strerror(errno));
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return (0);
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}
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bp->cnt = size;
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return (bp);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "%s\n\t%s\n",
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"usage: rcp [-Kpx] [-k realm] f1 f2",
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"or: rcp [-Kprx] [-k realm] f1 ... fn directory");
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exit(1);
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}
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static void
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oldw(const char *s)
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{
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char *rstar_no_warn = getenv("RSTAR_NO_WARN");
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if (rstar_no_warn == 0)
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rstar_no_warn = "";
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if (strncmp(rstar_no_warn, "yes", 3) != 0)
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warnx("%s, using standard rcp", s);
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}
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static RETSIGTYPE
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lostconn(int signo)
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{
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if (!iamremote)
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warnx("lost connection");
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exit(1);
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}
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static int
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response(void)
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{
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char ch, *cp, resp, rbuf[BUFSIZ];
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if (des_read(rem, &resp, sizeof(resp)) != sizeof(resp))
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lostconn(0);
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cp = rbuf;
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switch(resp) {
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case 0: /* ok */
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return (0);
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default:
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*cp++ = resp;
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/* FALLTHROUGH */
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case 1: /* error, followed by error msg */
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case 2: /* fatal error, "" */
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do {
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if (des_read(rem, &ch, sizeof(ch)) != sizeof(ch))
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lostconn(0);
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*cp++ = ch;
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} while (cp < &rbuf[BUFSIZ] && ch != '\n');
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if (!iamremote)
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write(STDERR_FILENO, rbuf, cp - rbuf);
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++errs;
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if (resp == 1)
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return (-1);
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exit(1);
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}
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/* NOTREACHED */
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}
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static void
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source(int argc, char **argv)
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{
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struct stat stb;
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static BUF buffer;
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BUF *bp;
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off_t i;
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int amt, fd, haderr, indx, result;
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char *last, *name, buf[BUFSIZ];
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for (indx = 0; indx < argc; ++indx) {
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name = argv[indx];
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if ((fd = open(name, O_RDONLY, 0)) < 0)
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goto syserr;
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if (fstat(fd, &stb)) {
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syserr: run_err("%s: %s", name, strerror(errno));
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goto next;
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}
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switch (stb.st_mode & S_IFMT) {
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case S_IFREG:
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break;
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case S_IFDIR:
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if (iamrecursive) {
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rsource(name, &stb);
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goto next;
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}
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/* FALLTHROUGH */
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default:
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run_err("%s: not a regular file", name);
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goto next;
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}
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if ((last = strrchr(name, '/')) == NULL)
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last = name;
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else
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++last;
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if (pflag) {
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/*
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* Make it compatible with possible future
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* versions expecting microseconds.
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*/
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snprintf(buf, sizeof(buf), "T%ld 0 %ld 0\n",
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(long)stb.st_mtime, (long)stb.st_atime);
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des_write(rem, buf, strlen(buf));
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if (response() < 0)
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goto next;
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}
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snprintf(buf, sizeof(buf), "C%04o %ld %s\n",
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(int)stb.st_mode & MODEMASK, (long) stb.st_size, last);
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des_write(rem, buf, strlen(buf));
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if (response() < 0)
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goto next;
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if ((bp = allocbuf(&buffer, fd, BUFSIZ)) == NULL) {
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next: close(fd);
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continue;
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}
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/* Keep writing after an error so that we stay sync'd up. */
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for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
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amt = bp->cnt;
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if (i + amt > stb.st_size)
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amt = stb.st_size - i;
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if (!haderr) {
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result = read(fd, bp->buf, amt);
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if (result != amt)
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haderr = result >= 0 ? EIO : errno;
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}
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if (haderr)
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des_write(rem, bp->buf, amt);
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else {
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result = des_write(rem, bp->buf, amt);
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if (result != amt)
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haderr = result >= 0 ? EIO : errno;
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}
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}
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if (close(fd) && !haderr)
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haderr = errno;
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if (!haderr)
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des_write(rem, "", 1);
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else
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run_err("%s: %s", name, strerror(haderr));
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response();
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}
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}
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void
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rsource(char *name, struct stat *statp)
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{
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DIR *dirp;
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struct dirent *dp;
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char *last, *vect[1], path[MaxPathLen];
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char *p;
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if (!(dirp = opendir(name))) {
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run_err("%s: %s", name, strerror(errno));
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return;
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}
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for (p = name + strlen(name) - 1; p >= name && *p == '/'; --p)
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*p = '\0';
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last = strrchr(name, '/');
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if (last == 0)
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last = name;
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else
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last++;
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if (pflag) {
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snprintf(path, sizeof(path), "T%ld 0 %ld 0\n",
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(long)statp->st_mtime, (long)statp->st_atime);
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des_write(rem, path, strlen(path));
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if (response() < 0) {
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closedir(dirp);
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return;
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}
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}
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snprintf(path, sizeof(path),
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"D%04o %d %s\n", (int)statp->st_mode & MODEMASK, 0, last);
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des_write(rem, path, strlen(path));
|
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if (response() < 0) {
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closedir(dirp);
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return;
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}
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while ((dp = readdir(dirp))) {
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if (dp->d_ino == 0)
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continue;
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if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
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continue;
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if (strlen(name) + 1 + strlen(dp->d_name) >= MaxPathLen - 1) {
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run_err("%s/%s: name too long", name, dp->d_name);
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continue;
|
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}
|
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if (snprintf(path, sizeof(path),
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"%s/%s", name, dp->d_name) >= sizeof(path)) {
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run_err("%s/%s: name too long", name, dp->d_name);
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continue;
|
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}
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vect[0] = path;
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source(1, vect);
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}
|
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closedir(dirp);
|
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des_write(rem, "E\n", 2);
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response();
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}
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static int
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kerberos(char **host, char *bp, char *locuser, char *user)
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{
|
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int sock = -1, err;
|
|
|
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if (use_kerberos) {
|
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paranoid_setuid(getuid());
|
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rem = KSUCCESS;
|
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errno = 0;
|
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if (dest_realm == NULL)
|
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dest_realm = krb_realmofhost(*host);
|
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|
|
#if 0
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rem = krcmd(host, port, user, bp, 0, dest_realm);
|
|
#else
|
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err = kcmd(
|
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&sock,
|
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host,
|
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port,
|
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NULL, /* locuser not used */
|
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user,
|
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bp,
|
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0,
|
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&ticket,
|
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SERVICE_NAME,
|
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dest_realm,
|
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(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 <newline>");
|
|
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);
|
|
}
|