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- /*
- * Copyright (c) 1983 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.
- */
-
- #ifndef lint
- static char RCSid[] =
- "$Id: client.c,v 6.73 1994/04/12 00:05:41 mcooper Exp mcooper $";
-
- static char sccsid[] = "@(#)client.c";
-
- static char copyright[] =
- "@(#) Copyright (c) 1983 Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- /*
- * Routines used in client mode to communicate with remove server.
- */
-
- #include "defs.h"
-
- /*
- * Update status
- */
- #define US_NOTHING 0 /* No update needed */
- #define US_NOENT 1 /* Entry does not exist */
- #define US_OUTDATE 2 /* Entry is out of date */
- #define US_DOCOMP 3 /* Do a binary comparison */
- #define US_MODE 4 /* Modes of file differ */
-
- struct linkbuf *ihead = NULL; /* list of files with more than one link */
- char buf[BUFSIZ]; /* general purpose buffer */
- u_char respbuff[BUFSIZ]; /* Response buffer */
- char target[BUFSIZ]; /* target/source directory name */
- char source[BUFSIZ]; /* source directory name */
- char *ptarget; /* pointer to end of target name */
- char *Tdest; /* pointer to last T dest*/
- struct namelist *updfilelist = NULL; /* List of updated files */
-
- static int sendit();
-
- /*
- * return remote file pathname (relative from target)
- */
- char *remfilename(src, dest, path, rname, destdir)
- char *src, *dest, *path, *rname;
- int destdir;
- {
- extern struct namelist *filelist;
- register char *lname, *cp;
- static char buff[BUFSIZ];
- int srclen, pathlen;
- char *p;
-
-
- debugmsg(DM_MISC,
- "remfilename: src=%s dest=%s path=%s rname=%s destdir=%d\n",
- A(src), A(dest), A(path), A(rname), destdir);
-
- if (!dest) {
- debugmsg(DM_MISC, "remfilename: remote filename=%s\n", path);
- return(path);
- }
-
- if (!destdir) {
- debugmsg(DM_MISC, "remfilename: remote filename=%s\n", dest);
- return(dest);
- }
-
- buff[0] = CNULL;
- lname = buff;
- if (path && *path) {
- cp = strrchr(path, '/');
- if (cp == NULL)
- (void) sprintf(buff, "%s/%s", dest, path);
- else {
- srclen = strlen(src);
- pathlen = strlen(path);
- if (srclen >= pathlen)
- cp++; /* basename(path) */
- else {
- if (filelist && filelist->n_next == NULL)
- /* path relative to src */
- cp = path + srclen;
- else {
- if ((p = strrchr(src, '/')))
- cp = path + srclen - strlen(p);
- else
- cp = path;
- }
- }
- if ((*cp != '/') && *cp)
- (void) sprintf(buff, "%s/%s", dest, cp);
- else
- (void) sprintf(buff, "%s%s", dest, cp);
- }
- } else
- strcpy(lname, dest);
-
- debugmsg(DM_MISC, "remfilename: remote filename=%s\n", lname);
-
- return(lname);
- }
-
- /*
- * Return true if name is in the list.
- */
- int inlist(list, file)
- struct namelist *list;
- char *file;
- {
- register struct namelist *nl;
-
- for (nl = list; nl != NULL; nl = nl->n_next)
- if (strcmp(file, nl->n_name) == 0)
- return(1);
- return(0);
- }
-
- /*
- * Run any special commands for this file
- */
- static void runspecial(starget, opts, rname, destdir)
- char *starget;
- opt_t opts;
- char *rname;
- int destdir;
- {
- register struct subcmd *sc;
- extern struct subcmd *subcmds;
- char *rfile;
-
- rfile = remfilename(source, Tdest, target, rname, destdir);
-
- for (sc = subcmds; sc != NULL; sc = sc->sc_next) {
- if (sc->sc_type != SPECIAL)
- continue;
- if (sc->sc_args != NULL && !inlist(sc->sc_args, starget))
- continue;
- message(MT_CHANGE, "special \"%s\"", sc->sc_name);
- if (IS_ON(opts, DO_VERIFY))
- continue;
- (void) sendcmd(C_SPECIAL,
- "%s=%s;%s=%s;%s=%s;export %s %s %s;%s",
- E_LOCFILE, starget,
- E_REMFILE, rfile,
- E_BASEFILE, basename(rfile),
- E_LOCFILE, E_REMFILE, E_BASEFILE,
- sc->sc_name);
- while (response() > 0)
- ;
- }
- }
-
- /*
- * If we're doing a target with a "cmdspecial" in it, then
- * save the name of the file being updated for use with "cmdspecial".
- */
- static void addcmdspecialfile(starget, rname, destdir)
- char *starget;
- char *rname;
- int destdir;
- {
- char *rfile;
- struct namelist *new;
- register struct subcmd *sc;
- extern struct subcmd *subcmds;
- int isokay = 0;
-
- rfile = remfilename(source, Tdest, target, rname, destdir);
-
- for (sc = subcmds; sc != NULL && !isokay; sc = sc->sc_next) {
- if (sc->sc_type != CMDSPECIAL)
- continue;
- if (sc->sc_args != NULL && !inlist(sc->sc_args, starget))
- continue;
- isokay = TRUE;
- }
-
- if (isokay) {
- new = (struct namelist *) xmalloc(sizeof(struct namelist));
- new->n_name = strdup(rfile);
- new->n_next = updfilelist;
- updfilelist = new;
- }
- }
-
- /*
- * Free the file list
- */
- static void freecmdspecialfiles()
- {
- register struct namelist *ptr, *save;
-
- for (ptr = updfilelist; ptr; ) {
- if (ptr->n_name) (void) free(ptr->n_name);
- save = ptr->n_next;
- (void) free(ptr);
- if (save)
- ptr = save->n_next;
- else
- ptr = NULL;
- }
- updfilelist = NULL;
- }
-
- /*
- * Run commands for an entire cmd
- */
- extern void runcmdspecial(cmd, filev, opts)
- struct cmd *cmd;
- char **filev;
- opt_t opts;
- {
- register struct subcmd *sc;
- register struct namelist *f;
- register char **cpp;
- char *file;
- int first = TRUE;
-
- for (sc = cmd->c_cmds; sc != NULL; sc = sc->sc_next) {
- if (sc->sc_type != CMDSPECIAL)
- continue;
- message(MT_CHANGE, "cmdspecial \"%s\"", sc->sc_name);
- if (IS_ON(opts, DO_VERIFY))
- continue;
- /* Send all the file names */
- for (f = updfilelist; f != NULL; f = f->n_next) {
- if (first) {
- (void) sendcmd(C_CMDSPECIAL, NULL);
- if (response() < 0)
- return;
- first = FALSE;
- }
- (void) sendcmd(RC_FILE, f->n_name);
- if (response() < 0)
- return;
- }
- if (first) {
- (void) sendcmd(C_CMDSPECIAL, NULL);
- if (response() < 0)
- return;
- first = FALSE;
- }
- /* Send command to run and wait for it to complete */
- (void) sendcmd(RC_COMMAND, sc->sc_name);
- while (response() > 0)
- ;
- first = TRUE; /* Reset in case there are more CMDSPECIAL's */
- }
- freecmdspecialfiles();
- }
-
- /*
- * For security, reject filenames that contains a newline
- */
- int checkfilename(name)
- char *name;
- {
- register char *cp;
-
- if (strchr(name, '\n')) {
- for (cp = name; *cp; cp++)
- if (*cp == '\n')
- *cp = '?';
- message(MT_NERROR,
- "Refuse to handle filename containing newline: %s",
- name);
- return(-1);
- }
-
- return(0);
- }
-
- /*
- * Save and retrieve hard link info
- */
- static struct linkbuf *linkinfo(statp)
- struct stat *statp;
- {
- struct linkbuf *lp;
-
- for (lp = ihead; lp != NULL; lp = lp->nextp)
- if (lp->inum == statp->st_ino && lp->devnum == statp->st_dev) {
- lp->count--;
- return(lp);
- }
-
- lp = (struct linkbuf *) xmalloc(sizeof(*lp));
- lp->nextp = ihead;
- ihead = lp;
- lp->inum = statp->st_ino;
- lp->devnum = statp->st_dev;
- lp->count = statp->st_nlink - 1;
- (void) strcpy(lp->pathname, target);
- (void) strcpy(lp->src, source);
- if (Tdest)
- (void) strcpy(lp->target, Tdest);
- else
- *lp->target = CNULL;
-
- return((struct linkbuf *) NULL);
- }
-
- /*
- * Send a hardlink
- */
- static int sendhardlink(opts, lp, rname, destdir)
- opt_t opts;
- struct linkbuf *lp;
- char *rname;
- int destdir;
- {
- static char buff[MAXPATHLEN];
- char *lname; /* name of file to link to */
-
- debugmsg(DM_MISC,
- "sendhardlink: rname='%s' pathname='%s' src='%s' target='%s'\n",
- rname, lp->pathname, lp->src, lp->target);
-
- if (*lp->target == CNULL)
- (void) sendcmd(C_RECVHARDLINK, "%o %s %s",
- opts, lp->pathname, rname);
- else {
- lname = buff;
- strcpy(lname, remfilename(lp->src, lp->target,
- lp->pathname, rname,
- destdir));
- debugmsg(DM_MISC, "sendhardlink: lname=%s\n", lname);
- (void) sendcmd(C_RECVHARDLINK, "%o %s %s",
- opts, lname, rname);
- }
-
- return(response());
- }
-
- /*
- * Send a file
- */
- static int sendfile(rname, opts, stb, user, group, destdir)
- char *rname;
- opt_t opts;
- struct stat *stb;
- char *user, *group;
- int destdir;
- {
- int goterr, f;
- off_t i;
-
- if (stb->st_nlink > 1) {
- struct linkbuf *lp;
-
- if ((lp = linkinfo(stb)) != NULL)
- return(sendhardlink(opts, lp, rname, destdir));
- }
-
- if ((f = open(target, O_RDONLY)) < 0) {
- error("%s: open for read failed: %s", target, SYSERR);
- return(-1);
- }
-
- /*
- * Send file info
- */
- (void) sendcmd(C_RECVREG, "%o %04o %ld %ld %ld %s %s %s",
- opts, stb->st_mode & 07777, stb->st_size,
- stb->st_mtime, stb->st_atime,
- user, group, rname);
- if (response() < 0) {
- (void) close(f);
- return(-1);
- }
-
- debugmsg(DM_MISC, "Send file '%s' %d bytes\n", rname, stb->st_size);
-
- /*
- * Set remote time out alarm handler.
- */
- (void) signal(SIGALRM, sighandler);
-
- /*
- * Actually transfer the file
- */
- goterr = 0;
- for (i = 0; i < stb->st_size; i += BUFSIZ) {
- int amt = BUFSIZ;
-
- (void) alarm(rtimeout);
- if (i + amt > stb->st_size)
- amt = stb->st_size - i;
- if (read(f, buf, amt) != amt) {
- error("%s: File changed size", target);
- err();
- ++goterr;
- /*
- * XXX - We have to keep going because the
- * server expects to receive a fixed number
- * of bytes that we specified as the file size.
- * We need Out Of Band communication to handle
- * this situation gracefully.
- */
- }
- {
- int ramt, wamt=amt, woff=0;
- while((ramt=write(rem_w,buf+woff,wamt)) > 0) {
- woff += ramt; wamt -= ramt;
- }
- if (ramt < 0) {
- error("%s: Error writing to client: %s",
- target, SYSERR);
- err();
- ++goterr;
- break;
- }
- }
- (void) alarm(0);
- }
-
- (void) alarm(0); /* Insure alarm is off */
- (void) close(f);
-
- debugmsg(DM_MISC, "Send file '%s' %s.\n",
- (goterr) ? "failed" : "complete", rname);
-
- /*
- * Check for errors and end send
- */
- if (goterr)
- return(-1);
- else {
- ack();
- f = response();
- if (f < 0)
- return(-1);
- else if (f == 0 && IS_ON(opts, DO_COMPARE))
- return(0);
-
- runspecial(target, opts, rname, destdir);
- addcmdspecialfile(target, rname, destdir);
-
- return(0);
- }
- }
-
- /*
- * Check for files on the machine being updated that are not on the master
- * machine and remove them.
- *
- * Return < 0 on error.
- * Return 0 if nothing happened.
- * Return > 0 if anything is updated.
- */
- static int rmchk(opts)
- opt_t opts;
- {
- register u_char *s;
- struct stat stb;
- int didupdate = 0;
- int n;
-
- debugmsg(DM_CALL, "rmchk()\n");
-
- /*
- * Tell the remote to clean the files from the last directory sent.
- */
- (void) sendcmd(C_CLEAN, "%o", IS_ON(opts, DO_VERIFY));
- if (response() < 0)
- return(-1);
-
- for ( ; ; ) {
- n = remline(s = respbuff, sizeof(respbuff), TRUE);
- if (n <= 0) {
- error("rmchk: unexpected control record");
- return(didupdate);
- }
-
- switch (*s++) {
- case CC_QUERY: /* Query if file should be removed */
- /*
- * Return the following codes to remove query.
- * CC_NO -- file exists - DON'T remove.
- * CC_YES -- file doesn't exist - REMOVE.
- */
- (void) sprintf(ptarget, "%s%s",
- (ptarget[-1] == '/' ? "" : "/"), s);
- debugmsg(DM_MISC, "check %s\n", target);
- if (except(target))
- (void) sendcmd(CC_NO, NULL);
- else if (lstat(target, &stb) < 0) {
- if (sendcmd(CC_YES, NULL) == 0)
- didupdate = 1;
- } else
- (void) sendcmd(CC_NO, NULL);
- break;
-
- case CC_END:
- *ptarget = CNULL;
- ack();
- return(didupdate);
-
- case C_LOGMSG:
- if (n > 0)
- message(MT_INFO, "%s", s);
- break;
-
- case C_ERRMSG:
- message(MT_NERROR, "%s", s);
- return(didupdate);
-
- case C_FERRMSG:
- message(MT_FERROR, "%s", s);
- finish();
-
- default:
- error("rmchk: unexpected response '%s'", respbuff);
- err();
- }
- }
- /*NOTREACHED*/
- }
-
- /*
- * Send a directory
- *
- * Return < 0 on error.
- * Return 0 if nothing happened.
- * Return > 0 if anything is updated.
- */
- static int senddir(rname, opts, stb, user, group, destdir)
- char *rname;
- opt_t opts;
- struct stat *stb;
- char *user, *group;
- int destdir;
- {
- DIRENTRY *dp;
- DIR *d;
- char *optarget, *cp;
- int len;
- int didupdate = 0;
-
- /*
- * Send recvdir command in recvit() format.
- */
- (void) sendcmd(C_RECVDIR, "%o %04o 0 0 0 %s %s %s",
- opts, stb->st_mode & 07777, user, group, rname);
- if (response() < 0)
- return(-1);
-
- /*
- * Don't descend into directory
- */
- if (IS_ON(opts, DO_NODESCEND))
- return(0);
-
- if (IS_ON(opts, DO_REMOVE))
- if (rmchk(opts) > 0)
- ++didupdate;
-
- if ((d = opendir(target)) == NULL) {
- error("%s: opendir failed: %s", target, SYSERR);
- return(-1);
- }
-
- optarget = ptarget;
- len = ptarget - target;
- while (dp = readdir(d)) {
- if (!strcmp(dp->d_name, ".") ||
- !strcmp(dp->d_name, ".."))
- continue;
- if (len + 1 + (int) strlen(dp->d_name) >= MAXPATHLEN - 1) {
- error("%s/%s: Name too long", target,
- dp->d_name);
- continue;
- }
- ptarget = optarget;
- if (ptarget[-1] != '/')
- *ptarget++ = '/';
- cp = dp->d_name;
- while (*ptarget++ = *cp++)
- ;
- ptarget--;
- if (sendit(dp->d_name, opts, destdir) > 0)
- didupdate = 1;
- }
- (void) closedir(d);
-
- (void) sendcmd(C_END, NULL);
- (void) response();
-
- ptarget = optarget;
- *ptarget = CNULL;
-
- return(didupdate);
- }
-
- /*
- * Send a link
- */
- static int sendlink(rname, opts, stb, user, group, destdir)
- char *rname;
- opt_t opts;
- struct stat *stb;
- char *user;
- char *group;
- int destdir;
- {
- int sizerr, f, n;
- static char tbuf[BUFSIZ];
- char lbuf[MAXPATHLEN];
- u_char *s;
-
- debugmsg(DM_CALL, "sendlink(%s, %x, stb, %d)\n", rname, opts, destdir);
-
- if (stb->st_nlink > 1) {
- struct linkbuf *lp;
-
- if ((lp = linkinfo(stb)) != NULL)
- return(sendhardlink(opts, lp, rname, destdir));
- }
-
- /*
- * Gather and send basic link info
- */
- (void) sendcmd(C_RECVSYMLINK, "%o %04o %ld %ld %ld %s %s %s",
- opts, stb->st_mode & 07777, stb->st_size,
- stb->st_mtime, stb->st_atime,
- user, group, rname);
- if (response() < 0)
- return(-1);
-
- /*
- * Gather and send additional link info
- */
- sizerr = (readlink(target, lbuf, sizeof(lbuf)) != stb->st_size);
- (void) sprintf(tbuf, "%.*s", stb->st_size, lbuf);
- (void) sendcmd(C_NONE, "%s\n", tbuf);
-
- if (sizerr) {
- error("%s: file changed size", target);
- err();
- } else
- ack();
-
- /*
- * Check response
- */
- f = response();
- if (f < 0)
- return(-1);
- else if (f == 0 && IS_ON(opts, DO_COMPARE))
- return(0);
-
- /*
- * Read and process responses from server.
- * The server may send multiple messages regarding
- * file deletes if the remote target is a directory.
- */
- for (;;) {
- n = remline(s = respbuff, sizeof(respbuff), TRUE);
- if (n == -1) /* normal EOF */
- return(0);
- if (n == 0) {
- error("expected control record");
- continue;
- }
-
- switch (*s++) {
- case C_END: /* End of send operation */
- *ptarget = CNULL;
- ack();
- runspecial(target, opts, rname, destdir);
- addcmdspecialfile(target, rname, destdir);
- return(0);
-
- case C_LOGMSG:
- if (n > 0)
- message(MT_INFO, "%s", s);
- break;
-
- case C_ERRMSG:
- message(MT_NERROR, "%s", s);
- return(-1);
-
- case C_FERRMSG:
- message(MT_FERROR, "%s", s);
- finish();
-
- default:
- error("install link: unexpected response '%s'",
- respbuff);
- err();
- }
- }
- /*NOTREACHED*/
- }
-
- /*
- * Check to see if file needs to be updated on the remote machine.
- * Returns:
- * US_NOTHING - no update
- * US_NOENT - remote doesn't exist
- * US_OUTDATE - out of date
- * US_DOCOMP - comparing binaries to determine if out of date
- * US_MODE - File modes do not match
- */
- static int update(rname, opts, statp)
- char *rname;
- opt_t opts;
- struct stat *statp;
- {
- register off_t size;
- register time_t mtime;
- unsigned short lmode;
- unsigned short rmode;
- char *owner = NULL, *group = NULL;
- int done, n;
- u_char *cp;
-
- debugmsg(DM_CALL, "update(%s, 0x%x, 0x%x)\n", rname, opts, statp);
-
- if (IS_ON(opts, DO_NOEXEC))
- if (isexec(target, statp)) {
- debugmsg(DM_MISC, "%s is an executable\n", target);
- return(US_NOTHING);
- }
-
- /*
- * Check to see if the file exists on the remote machine.
- */
- (void) sendcmd(C_QUERY, "%s", rname);
-
- for (done = 0; !done;) {
- n = remline(cp = respbuff, sizeof(respbuff), TRUE);
- if (n <= 0) {
- error("update: unexpected control record in response to query");
- return(US_NOTHING);
- }
-
- switch (*cp++) {
- case QC_ONNFS: /* Resides on a NFS */
- debugmsg(DM_MISC,
- "update: %s is on a NFS. Skipping...\n",
- rname);
- return(US_NOTHING);
-
- case QC_SYM: /* Is a symbolic link */
- debugmsg(DM_MISC,
- "update: %s is a symlink. Skipping...\n",
- rname);
- return(US_NOTHING);
-
- case QC_ONRO: /* Resides on a Read-Only fs */
- debugmsg(DM_MISC,
- "update: %s is on a RO fs. Skipping...\n",
- rname);
- return(US_NOTHING);
-
- case QC_YES:
- done = 1;
- break;
-
- case QC_NO: /* file doesn't exist so install it */
- return(US_NOENT);
-
- case C_ERRMSG:
- if (cp)
- message(MT_NERROR, "%s", cp);
- return(US_NOTHING);
-
- case C_FERRMSG:
- if (cp)
- message(MT_FERROR, "%s", cp);
- finish();
-
- case C_NOTEMSG:
- if (cp)
- message(MT_NOTICE, "%s", cp);
- break;
- /* Goto top of loop */
-
- default:
- error("update: unexpected response to query '%s'", cp);
- return(US_NOTHING);
- }
- }
-
- /*
- * Target exists, but no other info passed
- */
- if (n <= 1 || !S_ISREG(statp->st_mode))
- return(US_OUTDATE);
-
- if (IS_ON(opts, DO_COMPARE))
- return(US_DOCOMP);
-
- /*
- * Parse size
- */
- size = strtol(cp, &cp, 10);
- if (*cp++ != ' ') {
- error("update: size not delimited");
- return(US_NOTHING);
- }
-
- /*
- * Parse mtime
- */
- mtime = strtol(cp, &cp, 10);
- if (*cp++ != ' ') {
- error("update: mtime not delimited");
- return(US_NOTHING);
- }
-
- /*
- * Parse remote file mode
- */
- rmode = strtol(cp, &cp, 8);
- if (cp && *cp)
- ++cp;
-
- /*
- * Be backwards compatible
- */
- if (cp && *cp != CNULL) {
- /*
- * Parse remote file owner
- */
- owner = strtok((char *)cp, " ");
- if (owner == NULL) {
- error("update: owner not delimited");
- return(US_NOTHING);
- }
-
- /*
- * Parse remote file group
- */
- group = strtok((char *) NULL, " ");
- if (group == NULL) {
- error("update: group not delimited");
- return(US_NOTHING);
- }
- }
-
- /*
- * File needs to be updated?
- */
- lmode = statp->st_mode & 07777;
-
- debugmsg(DM_MISC, "update(%s,) local mode %04o remote mode %04o\n",
- rname, lmode, rmode);
- debugmsg(DM_MISC, "update(%s,) size %d mtime %d owner '%s' grp '%s'\n",
- rname, size, mtime, owner, group);
-
- if (statp->st_mtime != mtime) {
- if (statp->st_mtime < mtime && IS_ON(opts, DO_YOUNGER)) {
- message(MT_WARNING,
- "%s: Warning: remote copy is newer",
- target);
- return(US_NOTHING);
- }
- return(US_OUTDATE);
- }
-
- /*
- * If the mode of a file does not match the local mode, the
- * whole file is updated. This is done both to insure that
- * a bogus version of the file has not been installed and to
- * avoid having to handle weird cases of chmod'ing symlinks
- * and such.
- */
- if (!IS_ON(opts, DO_NOCHKMODE) && lmode != rmode) {
- debugmsg(DM_MISC, "modes do not match (%04o != %04o).\n",
- lmode, rmode);
- return(US_OUTDATE);
- }
-
- if (statp->st_size != size) {
- debugmsg(DM_MISC, "size does not match (%d != %d).\n",
- statp->st_size, size);
- return(US_OUTDATE);
- }
-
- /*
- * Check ownership
- */
- if (!IS_ON(opts, DO_NOCHKOWNER) && owner) {
- if (!IS_ON(opts, DO_NUMCHKOWNER)) {
- /* Check by string compare */
- if (strcmp(owner, getusername(statp->st_uid,
- target, opts)) != 0) {
- debugmsg(DM_MISC,
- "owner does not match (%s != %s).\n",
- getusername(statp->st_uid,
- target, opts), owner);
- return(US_OUTDATE);
- }
- } else {
- /*
- * Check numerically.
- * Allow negative numbers.
- */
- while (*owner && !isdigit(*owner) && (*owner != '-'))
- ++owner;
- if (owner && atoi(owner) != statp->st_uid) {
- debugmsg(DM_MISC,
- "owner does not match (%d != %s).\n",
- statp->st_uid, owner);
- return(US_OUTDATE);
- }
- }
- }
-
- if (!IS_ON(opts, DO_NOCHKGROUP) && group) {
- if (!IS_ON(opts, DO_NUMCHKGROUP)) {
- /* Check by string compare */
- if (strcmp(group, getgroupname(statp->st_gid,
- target, opts)) != 0) {
- debugmsg(DM_MISC,
- "group does not match (%s != %s).\n",
- getgroupname(statp->st_gid,
- target, opts), group);
- return(US_OUTDATE);
- }
- } else {
- /* Check numerically */
- /* Allow negative gid */
- while (*group && !isdigit(*group) && (*group != '-'))
- ++group;
- if (group && atoi(group) != statp->st_gid) {
- debugmsg(DM_MISC,
- "group does not match (%d != %s).\n",
- statp->st_gid, group);
- return(US_OUTDATE);
- }
- }
- }
-
- return(US_NOTHING);
- }
-
- /*
- * Stat a file
- */
- static int dostat(file, statbuf, opts)
- char *file;
- struct stat *statbuf;
- opt_t opts;
- {
- int s;
-
- if (IS_ON(opts, DO_FOLLOW))
- s = stat(file, statbuf);
- else
- s = lstat(file, statbuf);
-
- if (s < 0)
- error("%s: %s failed: %s", file,
- IS_ON(opts, DO_FOLLOW) ? "stat" : "lstat", SYSERR);
- return(s);
- }
-
- /*
- * Transfer the file or directory in target[].
- * rname is the name of the file on the remote host.
- *
- * Return < 0 on error.
- * Return 0 if nothing happened.
- * Return > 0 if anything is updated.
- */
- static int sendit(rname, opts, destdir)
- char *rname;
- opt_t opts;
- int destdir;
- {
- static struct stat stb;
- extern struct subcmd *subcmds;
- char *user, *group;
- int u, len;
- int didupdate = 0;
-
- /*
- * Remove possible accidental newline
- */
- len = strlen(rname);
- if (len > 0 && rname[len-1] == '\n')
- rname[len-1] = CNULL;
-
- if (checkfilename(rname) != 0)
- return(-1);
-
- debugmsg(DM_CALL, "sendit(%s, 0x%x) called\n", rname, opts);
-
- if (except(target))
- return(0);
-
- if (dostat(target, &stb, opts) < 0)
- return(-1);
-
- /*
- * Does rname need updating?
- */
- u = update(rname, opts, &stb);
- debugmsg(DM_MISC, "sendit(%s, 0x%x): update status of %s is %d\n",
- rname, opts, target, u);
-
- /*
- * Don't need to update the file, but we may need to save hardlink
- * info.
- */
- if (u == US_NOTHING) {
- if (S_ISREG(stb.st_mode) && stb.st_nlink > 1)
- (void) linkinfo(&stb);
- return(0);
- }
-
- /*
- * File mode needs changing
- */
- if (u == US_MODE) {
- if (IS_ON(opts, DO_VERIFY)) {
- message(MT_INFO, "%s: need to chmod to %04o",
- target, stb.st_mode & 07777);
- runspecial(target, opts, rname, destdir);
- return(1);
- }
- message(MT_CHANGE, "%s: chmod to %04o",
- target, stb.st_mode & 07777);
- (void) sendcmd(C_CHMOD, "%o %04o %s",
- opts, stb.st_mode & 07777, rname);
- (void) response();
- return(1);
- }
-
- user = getusername(stb.st_uid, target, opts);
- group = getgroupname(stb.st_gid, target, opts);
-
- /*
- * No entry - need to install
- */
- if (u == US_NOENT) {
- if (IS_ON(opts, DO_VERIFY)) {
- message(MT_INFO, "%s: need to install", target);
- runspecial(target, opts, rname, destdir);
- return(1);
- }
- if (!IS_ON(opts, DO_QUIET))
- message(MT_CHANGE, "%s: installing", target);
- FLAG_OFF(opts, (DO_COMPARE|DO_REMOVE));
- }
-
- /*
- * Handle special file types, including directories and symlinks
- */
- if (S_ISDIR(stb.st_mode)) {
- if (senddir(rname, opts, &stb, user, group, destdir) > 0)
- didupdate = 1;
- } else if (S_ISLNK(stb.st_mode)) {
- if (u != US_NOENT)
- FLAG_ON(opts, DO_COMPARE);
- /*
- * Since we always send link info to the server
- * so the server can determine if the remote link
- * is correct, we never get any acknowledge meant
- * from the server whether the link was really
- * updated or not.
- */
- (void) sendlink(rname, opts, &stb, user, group, destdir);
- } else if (S_ISREG(stb.st_mode)) {
- if (u == US_OUTDATE) {
- if (IS_ON(opts, DO_VERIFY)) {
- message(MT_INFO, "%s: need to update", target);
- runspecial(target, opts, rname, destdir);
- return(1);
- }
- if (!IS_ON(opts, DO_QUIET))
- message(MT_CHANGE, "%s: updating", target);
- }
- if (sendfile(rname, opts, &stb, user, group, destdir) == 0)
- didupdate = 1;
- } else
- error("%s: unknown file type", target);
-
- return(didupdate);
- }
-
- /*
- * Remove temporary files and do any cleanup operations before exiting.
- */
- extern void cleanup()
- {
- char *file;
- #ifdef USE_STATDB
- extern char statfile[];
-
- (void) unlink(statfile);
- #endif
-
- if (file = getnotifyfile())
- (void) unlink(file);
- }
-
- /*
- * Update the file(s) if they are different.
- * destdir = 1 if destination should be a directory
- * (i.e., more than one source is being copied to the same destination).
- *
- * Return < 0 on error.
- * Return 0 if nothing updated.
- * Return > 0 if something was updated.
- */
- extern int install(src, dest, ddir, destdir, opts)
- char *src, *dest;
- int ddir, destdir;
- opt_t opts;
- {
- static char destcopy[MAXPATHLEN];
- char *rname;
- int didupdate = 0;
-
- debugmsg(DM_CALL,
- "install(src=%s,dest=%s,ddir=%d,destdir=%d,opts=%d) start\n",
- (src?src:"NULL"), (dest?dest:"NULL"), ddir, destdir, opts);
- /*
- * Save source name
- */
- if (IS_ON(opts, DO_WHOLE))
- source[0] = CNULL;
- else
- (void) strcpy(source, src);
-
- if (dest == NULL) {
- FLAG_OFF(opts, DO_WHOLE); /* WHOLE only useful if renaming */
- dest = src;
- }
-
- if (checkfilename(dest) != 0)
- return(-1);
-
- if (nflag || debug) {
- static char buff[BUFSIZ];
- char *cp;
-
- cp = getondistoptlist(opts);
- (void) sprintf(buff, "%s%s%s %s %s",
- IS_ON(opts, DO_VERIFY) ? "verify" : "install",
- (cp) ? " -o" : "", (cp) ? cp : "",
- src, dest);
- if (nflag) {
- printf("%s\n", buff);
- return(0);
- } else
- debugmsg(DM_MISC, "%s\n", buff);
- }
-
- rname = exptilde(target, src);
- if (rname == NULL)
- return(-1);
- ptarget = target;
- while (*ptarget)
- ptarget++;
- /*
- * If we are renaming a directory and we want to preserve
- * the directory heirarchy (-w), we must strip off the leading
- * directory name and preserve the rest.
- */
- if (IS_ON(opts, DO_WHOLE)) {
- while (*rname == '/')
- rname++;
- ddir = 1;
- destdir = 1;
- } else {
- rname = strrchr(target, '/');
- /* Check if no '/' or target ends in '/' */
- if (rname == NULL ||
- rname+1 == NULL ||
- *(rname+1) == CNULL)
- rname = target;
- else
- rname++;
- }
-
- debugmsg(DM_MISC,
- "install: target=%s src=%s rname=%s dest='%s' destdir=%d, ddir=%d\n",
- target, source, rname, dest, destdir, ddir);
-
- /*
- * Pass the destination file/directory name to remote.
- */
- if (ddir)
- (void) sendcmd(C_DIRTARGET, "%o %s", opts, dest);
- else
- (void) sendcmd(C_TARGET, "%o %s", opts, dest);
- if (response() < 0)
- return(-1);
-
- /*
- * Save the name of the remote target destination if we are
- * in WHOLE mode (destdir > 0) or if the source and destination
- * are not the same. This info will be used later for maintaining
- * hardlink info.
- */
- if (destdir || (src && dest && strcmp(src, dest))) {
- (void) strcpy(destcopy, dest);
- Tdest = destcopy;
- }
-
- didupdate = sendit(rname, opts, destdir);
- Tdest = 0;
-
- return(didupdate);
- }
-