Home | History | Annotate | Line # | Download | only in find
main.c revision 1.1 
      1 /*-
      2  * Copyright (c) 1990 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 static char sccsid[] = "@(#)main.c	5.9 (Berkeley) 5/24/91";
     36 #endif /* not lint */
     37 
     38 #include <sys/types.h>
     39 #include <sys/stat.h>
     40 #include <fcntl.h>
     41 #include <time.h>
     42 #include <fts.h>
     43 #include <errno.h>
     44 #include <stdio.h>
     45 #include <stdlib.h>
     46 #include "find.h"
     47 
     48 time_t now;			/* time find was run */
     49 int dotfd;			/* starting directory */
     50 int ftsoptions;			/* options for the ftsopen(3) call */
     51 int isdeprecated;		/* using deprecated syntax */
     52 int isdepth;			/* do directories on post-order visit */
     53 int isoutput;			/* user specified output operator */
     54 int isxargs;			/* don't permit xargs delimiting chars */
     55 
     56 static void usage();
     57 
     58 main(argc, argv)
     59 	int argc;
     60 	char **argv;
     61 {
     62 	register char **p, **start;
     63 	PLAN *find_formplan();
     64 	int ch;
     65 
     66 	(void)time(&now);	/* initialize the time-of-day */
     67 
     68 	p = start = argv;
     69 	ftsoptions = FTS_NOSTAT|FTS_PHYSICAL;
     70 	while ((ch = getopt(argc, argv, "df:sXx")) != EOF)
     71 		switch(ch) {
     72 		case 'd':
     73 			isdepth = 1;
     74 			break;
     75 		case 'f':
     76 			*p++ = optarg;
     77 			break;
     78 		case 's':
     79 			ftsoptions &= ~FTS_PHYSICAL;
     80 			ftsoptions |= FTS_LOGICAL;
     81 			break;
     82 		case 'X':
     83 			isxargs = 1;
     84 			break;
     85 		case 'x':
     86 			ftsoptions &= ~FTS_NOSTAT;
     87 			ftsoptions |= FTS_XDEV;
     88 			break;
     89 		case '?':
     90 		default:
     91 			break;
     92 		}
     93 
     94 	argc -= optind;
     95 	argv += optind;
     96 
     97 	/* Find first option to delimit the file list. */
     98 	while (*argv) {
     99 		if (option(*argv))
    100 			break;
    101 		*p++ = *argv++;
    102 	}
    103 
    104 	if (p == start)
    105 		usage();
    106 	*p = NULL;
    107 
    108 	if ((dotfd = open(".", O_RDONLY, 0)) < 0)
    109 		err(".: %s", strerror(errno));
    110 
    111 	find_execute(find_formplan(argv), start);
    112 }
    113 
    114 static void
    115 usage()
    116 {
    117 	(void)fprintf(stderr,
    118 	    "usage: find [-dsXx] [-f file] [file ...] expression\n");
    119 	exit(1);
    120 }
    121