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main.c revision 1.7 
      1 /*	$NetBSD: main.c,v 1.7 1997/10/18 14:49:45 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990, 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 #ifndef lint
     37 /*static char sccsid[] = "@(#)main.c	8.1 (Berkeley) 6/6/93";*/
     38 static char rcsid[] = "$NetBSD: main.c,v 1.7 1997/10/18 14:49:45 lukem Exp $";
     39 #endif /* not lint */
     40 
     41 #include <sys/types.h>
     42 #include <sys/stat.h>
     43 
     44 #include <err.h>
     45 #include <errno.h>
     46 #include <fcntl.h>
     47 #include <fts.h>
     48 #include <stdio.h>
     49 #include <stdlib.h>
     50 #include <time.h>
     51 
     52 #include "find.h"
     53 
     54 time_t now;			/* time find was run */
     55 int dotfd;			/* starting directory */
     56 int ftsoptions;			/* options for the ftsopen(3) call */
     57 int isdeprecated;		/* using deprecated syntax */
     58 int isdepth;			/* do directories on post-order visit */
     59 int isoutput;			/* user specified output operator */
     60 int isxargs;			/* don't permit xargs delimiting chars */
     61 
     62 static void usage __P((void));
     63 
     64 int
     65 main(argc, argv)
     66 	int argc;
     67 	char *argv[];
     68 {
     69 	register char **p, **start;
     70 	int ch;
     71 
     72 	(void)time(&now);	/* initialize the time-of-day */
     73 
     74 	p = start = argv;
     75 	ftsoptions = FTS_NOSTAT|FTS_PHYSICAL;
     76 	while ((ch = getopt(argc, argv, "Hdf:hXx")) != -1)
     77 		switch(ch) {
     78 		case 'H':
     79 			ftsoptions |= FTS_COMFOLLOW;
     80 			break;
     81 		case 'd':
     82 			isdepth = 1;
     83 			break;
     84 		case 'f':
     85 			*p++ = optarg;
     86 			break;
     87 		case 'h':
     88 			ftsoptions &= ~FTS_PHYSICAL;
     89 			ftsoptions |= FTS_LOGICAL;
     90 			break;
     91 		case 'X':
     92 			isxargs = 1;
     93 			break;
     94 		case 'x':
     95 			ftsoptions &= ~FTS_NOSTAT;
     96 			ftsoptions |= FTS_XDEV;
     97 			break;
     98 		case '?':
     99 		default:
    100 			break;
    101 		}
    102 
    103 	argc -= optind;
    104 	argv += optind;
    105 
    106 	/* The first argument that starts with a -, or is a ! or a (, and all
    107 	 * subsequent arguments shall be interpreted as an expression ...
    108 	 * (POSIX.2).
    109 	 */
    110 	while (*argv) {
    111 		if (**argv == '-' ||
    112 		    ((**argv == '!' || **argv == '(') && (*argv)[1] == '\0'))
    113 			break;
    114 		*p++ = *argv++;
    115 	}
    116 
    117 	if (p == start)
    118 		usage();
    119 	*p = NULL;
    120 
    121 	if ((dotfd = open(".", O_RDONLY, 0)) < 0)
    122 		err(1, ".:");
    123 
    124 	find_execute(find_formplan(argv), start);
    125 	exit(0);
    126 }
    127 
    128 static void
    129 usage()
    130 {
    131 	(void)fprintf(stderr,
    132 	    "usage: find [-HdhXx] [-f file] [file ...] expression\n");
    133 	exit(1);
    134 }
    135