/* $OpenBSD: main.c,v 1.20 2007/09/27 17:08:58 sobrado Exp $ */ /* * Copyright (c) 1983, 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. 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 copyright[] = "@(#) Copyright (c) 1983, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint /* from: static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/9/93"; */ static char *rcsid = "$OpenBSD: main.c,v 1.20 2007/09/27 17:08:58 sobrado Exp $"; #endif /* not lint */ #include #include #include "defs.h" #define NHOSTS 100 /* * Remote distribution program. */ char *distfile = NULL; #define _RDIST_TMP "rdistXXXXXXXXXX" char tempfile[sizeof _PATH_TMP + sizeof _RDIST_TMP - 1]; char *tempname; int debug; /* debugging flag */ int nflag; /* NOP flag, just print commands without executing */ int qflag; /* Quiet. Don't print messages */ int options; /* global options */ int iamremote; /* act as remote server for transfering files */ FILE *fin = NULL; /* input file pointer */ int rem = -1; /* file descriptor to remote source/sink process */ char host[MAXHOSTNAMELEN]; /* host name */ int nerrs; /* number of errors while sending/receiving */ char user[MAXLOGNAME]; /* user's name */ char homedir[MAXPATHLEN]; /* user's home directory */ uid_t userid; /* user's user ID */ gid_t groupid; /* user's group ID */ struct passwd *pw; /* pointer to static area used by getpwent */ struct group *gr; /* pointer to static area used by getgrent */ static void usage(void); static void docmdargs(int, char *[]); int main(argc, argv) int argc; char *argv[]; { char *arg; int cmdargs = 0; char *dhosts[NHOSTS], **hp = dhosts; pw = getpwuid(userid = getuid()); if (pw == NULL) { fprintf(stderr, "%s: Who are you?\n", argv[0]); exit(1); } strlcpy(user, pw->pw_name, sizeof user); strlcpy(homedir, pw->pw_dir, sizeof homedir); groupid = pw->pw_gid; gethostname(host, sizeof(host)); strlcpy(tempfile, _PATH_TMP, sizeof tempfile); strlcat(tempfile, _RDIST_TMP, sizeof tempfile); tempname = basename(tempfile); while (--argc > 0) { if ((arg = *++argv)[0] != '-') break; if (!strcmp(arg, "-Server")) iamremote++; else while (*++arg) switch (*arg) { case 'f': if (--argc <= 0) usage(); distfile = *++argv; if (distfile[0] == '-' && distfile[1] == '\0') fin = stdin; break; case 'm': if (--argc <= 0) usage(); if (hp >= &dhosts[NHOSTS-2]) { fprintf(stderr, "rdist: too many destination hosts\n"); exit(1); } *hp++ = *++argv; break; case 'd': if (--argc <= 0) usage(); define(*++argv); break; case 'D': debug++; break; case 'c': cmdargs++; break; case 'n': if (options & VERIFY) { printf("rdist: -n overrides -v\n"); options &= ~VERIFY; } nflag++; break; case 'q': qflag++; break; case 'b': options |= COMPARE; break; case 'R': options |= REMOVE; break; case 'v': if (nflag) { printf("rdist: -n overrides -v\n"); break; } options |= VERIFY; break; case 'w': options |= WHOLE; break; case 'y': options |= YOUNGER; break; case 'h': options |= FOLLOW; break; case 'i': options |= IGNLNKS; break; default: usage(); } } *hp = NULL; #if defined(DIRECT_RCMD) seteuid(userid); #else /* DIRECT_RCMD */ if (!iamremote && getuid() != geteuid()) { error("This version of rdist should not be installed setuid.\n"); exit(1); } #endif /* DIRECT_RCMD */ if (mktemp(tempfile) == NULL) fatal("cannot get temp file\n"); if (iamremote) { server(); exit(nerrs != 0); } if (cmdargs) docmdargs(argc, argv); else { if (fin == NULL) { if (distfile == NULL) { if ((fin = fopen("distfile","r")) == NULL) fin = fopen("Distfile", "r"); } else fin = fopen(distfile, "r"); if (fin == NULL) { perror(distfile ? distfile : "distfile"); exit(1); } } yyparse(); if (nerrs == 0) docmds(dhosts, argc, argv); } exit(nerrs != 0); } static void usage() { printf( "usage: rdist [-bhinqRvwy] [-d var=value] [-f distfile] [-m host] [name ...]\n" " rdist [-bhinqRvwy] -c name ... [login@]host[:dest]\n"); exit(1); } /* * rcp like interface for distributing files. */ static void docmdargs(nargs, args) int nargs; char *args[]; { struct namelist *nl, *prev; char *cp; struct namelist *files, *hosts; struct subcmd *cmds; char *dest; static struct namelist tnl = { NULL, NULL }; int i; if (nargs < 2) usage(); prev = NULL; for (i = 0; i < nargs - 1; i++) { nl = makenl(args[i]); if (prev == NULL) files = prev = nl; else { prev->n_next = nl; prev = nl; } } cp = args[i]; if ((dest = strchr(cp, ':')) != NULL) *dest++ = '\0'; tnl.n_name = cp; hosts = expand(&tnl, E_ALL); if (nerrs) exit(1); if (dest == NULL || *dest == '\0') cmds = NULL; else { cmds = makesubcmd(INSTALL); cmds->sc_options = options; cmds->sc_name = dest; } if (debug) { printf("docmdargs()\nfiles = "); prnames(files); printf("hosts = "); prnames(hosts); } insert(NULL, files, hosts, cmds); docmds(NULL, 0, NULL); } /* * Print a list of NAME blocks (mostly for debugging). */ void prnames(nl) struct namelist *nl; { printf("( "); while (nl != NULL) { printf("%s ", nl->n_name); nl = nl->n_next; } printf(")\n"); }