main.c revision 1.6
1 /* $NetBSD: main.c,v 1.6 1997/10/18 14:34:57 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/9/93"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.6 1997/10/18 14:34:57 mrg Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/types.h> 51 52 #include <errno.h> 53 #include <pwd.h> 54 55 #include "defs.h" 56 57 #define NHOSTS 100 58 59 /* 60 * Remote distribution program. 61 */ 62 63 char *distfile = NULL; 64 #define _RDIST_TMP "/rdistXXXXXX" 65 char tempfile[sizeof _PATH_TMP + sizeof _RDIST_TMP + 1]; 66 char *tempname; 67 68 int debug; /* debugging flag */ 69 int nflag; /* NOP flag, just print commands without executing */ 70 int qflag; /* Quiet. Don't print messages */ 71 int options; /* global options */ 72 int iamremote; /* act as remote server for transfering files */ 73 74 FILE *fin = NULL; /* input file pointer */ 75 int rem = -1; /* file descriptor to remote source/sink process */ 76 char host[32]; /* host name */ 77 int nerrs; /* number of errors while sending/receiving */ 78 char user[10]; /* user's name */ 79 char homedir[128]; /* user's home directory */ 80 int userid; /* user's user ID */ 81 int groupid; /* user's group ID */ 82 83 struct passwd *pw; /* pointer to static area used by getpwent */ 84 struct group *gr; /* pointer to static area used by getgrent */ 85 86 static void usage __P((void)); 87 static void docmdargs __P((int, char *[])); 88 89 int 90 main(argc, argv) 91 int argc; 92 char *argv[]; 93 { 94 register char *arg; 95 int cmdargs = 0; 96 char *dhosts[NHOSTS], **hp = dhosts; 97 98 pw = getpwuid(userid = getuid()); 99 if (pw == NULL) { 100 fprintf(stderr, "%s: Who are you?\n", argv[0]); 101 exit(1); 102 } 103 strcpy(user, pw->pw_name); 104 strcpy(homedir, pw->pw_dir); 105 groupid = pw->pw_gid; 106 gethostname(host, sizeof(host)); 107 strcpy(tempfile, _PATH_TMP); 108 strcat(tempfile, _RDIST_TMP); 109 if ((tempname = rindex(tempfile, '/')) != 0) 110 tempname++; 111 else 112 tempname = tempfile; 113 114 while (--argc > 0) { 115 if ((arg = *++argv)[0] != '-') 116 break; 117 if (!strcmp(arg, "-Server")) 118 iamremote++; 119 else while (*++arg) 120 switch (*arg) { 121 case 'f': 122 if (--argc <= 0) 123 usage(); 124 distfile = *++argv; 125 if (distfile[0] == '-' && distfile[1] == '\0') 126 fin = stdin; 127 break; 128 129 case 'm': 130 if (--argc <= 0) 131 usage(); 132 if (hp >= &dhosts[NHOSTS-2]) { 133 fprintf(stderr, "rdist: too many destination hosts\n"); 134 exit(1); 135 } 136 *hp++ = *++argv; 137 break; 138 139 case 'd': 140 if (--argc <= 0) 141 usage(); 142 define(*++argv); 143 break; 144 145 case 'D': 146 debug++; 147 break; 148 149 case 'c': 150 cmdargs++; 151 break; 152 153 case 'n': 154 if (options & VERIFY) { 155 printf("rdist: -n overrides -v\n"); 156 options &= ~VERIFY; 157 } 158 nflag++; 159 break; 160 161 case 'q': 162 qflag++; 163 break; 164 165 case 'b': 166 options |= COMPARE; 167 break; 168 169 case 'R': 170 options |= REMOVE; 171 break; 172 173 case 'v': 174 if (nflag) { 175 printf("rdist: -n overrides -v\n"); 176 break; 177 } 178 options |= VERIFY; 179 break; 180 181 case 'w': 182 options |= WHOLE; 183 break; 184 185 case 'y': 186 options |= YOUNGER; 187 break; 188 189 case 'h': 190 options |= FOLLOW; 191 break; 192 193 case 'i': 194 options |= IGNLNKS; 195 break; 196 197 default: 198 usage(); 199 } 200 } 201 *hp = NULL; 202 203 seteuid(userid); 204 mktemp(tempfile); 205 206 if (iamremote) { 207 server(); 208 exit(nerrs != 0); 209 } 210 211 if (cmdargs) 212 docmdargs(argc, argv); 213 else { 214 if (fin == NULL) { 215 if(distfile == NULL) { 216 if((fin = fopen("distfile","r")) == NULL) 217 fin = fopen("Distfile", "r"); 218 } else 219 fin = fopen(distfile, "r"); 220 if(fin == NULL) { 221 perror(distfile ? distfile : "distfile"); 222 exit(1); 223 } 224 } 225 yyparse(); 226 if (nerrs == 0) 227 docmds(dhosts, argc, argv); 228 } 229 230 exit(nerrs != 0); 231 } 232 233 static void 234 usage() 235 { 236 printf("Usage: rdist [-nqbhirvwyD] [-f distfile] [-d var=value] [-m host] [file ...]\n"); 237 printf("or: rdist [-nqbhirvwyD] -c source [...] machine[:dest]\n"); 238 exit(1); 239 } 240 241 /* 242 * rcp like interface for distributing files. 243 */ 244 static void 245 docmdargs(nargs, args) 246 int nargs; 247 char *args[]; 248 { 249 register struct namelist *nl, *prev; 250 register char *cp; 251 struct namelist *files, *hosts; 252 struct subcmd *cmds; 253 char *dest; 254 static struct namelist tnl = { NULL, NULL }; 255 int i; 256 257 if (nargs < 2) 258 usage(); 259 260 prev = NULL; 261 for (i = 0; i < nargs - 1; i++) { 262 nl = makenl(args[i]); 263 if (prev == NULL) 264 files = prev = nl; 265 else { 266 prev->n_next = nl; 267 prev = nl; 268 } 269 } 270 271 cp = args[i]; 272 if ((dest = index(cp, ':')) != NULL) 273 *dest++ = '\0'; 274 tnl.n_name = cp; 275 hosts = expand(&tnl, E_ALL); 276 if (nerrs) 277 exit(1); 278 279 if (dest == NULL || *dest == '\0') 280 cmds = NULL; 281 else { 282 cmds = makesubcmd(INSTALL); 283 cmds->sc_options = options; 284 cmds->sc_name = dest; 285 } 286 287 if (debug) { 288 printf("docmdargs()\nfiles = "); 289 prnames(files); 290 printf("hosts = "); 291 prnames(hosts); 292 } 293 insert(NULL, files, hosts, cmds); 294 docmds(NULL, 0, NULL); 295 } 296 297 /* 298 * Print a list of NAME blocks (mostly for debugging). 299 */ 300 void 301 prnames(nl) 302 register struct namelist *nl; 303 { 304 printf("( "); 305 while (nl != NULL) { 306 printf("%s ", nl->n_name); 307 nl = nl->n_next; 308 } 309 printf(")\n"); 310 } 311 312 #if __STDC__ 313 #include <stdarg.h> 314 #else 315 #include <varargs.h> 316 #endif 317 318 void 319 #if __STDC__ 320 warn(const char *fmt, ...) 321 #else 322 warn(fmt, va_alist) 323 char *fmt; 324 va_dcl 325 #endif 326 { 327 extern int yylineno; 328 va_list ap; 329 #if __STDC__ 330 va_start(ap, fmt); 331 #else 332 va_start(ap); 333 #endif 334 (void)fprintf(stderr, "rdist: line %d: Warning: ", yylineno); 335 (void)vfprintf(stderr, fmt, ap); 336 (void)fprintf(stderr, "\n"); 337 va_end(ap); 338 } 339
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