/* $OpenBSD: main.c,v 1.31 2017/01/03 21:31:16 tedu Exp $ */ /*- * Copyright (c) 1990, 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. */ #include <sys/types.h> #include <sys/stat.h> #include <err.h> #include <errno.h> #include <fcntl.h> #include <fts.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #include <unistd.h> #include "find.h" time_t now; /* time find was run */ int dotfd; /* starting directory; may be -1 */ int ftsoptions; /* options for the fts_open(3) call */ int isdelete; /* user specified -delete operator */ int isdepth; /* do directories on post-order visit */ int isoutput; /* user specified output operator */ int isxargs; /* don't permit xargs delimiting chars */ __dead static void usage(void); int main(int argc, char *argv[]) { struct sigaction sa; char **p, **paths, **paths2; int ch; memset(&sa, 0, sizeof sa); sa.sa_handler = show_path; sa.sa_flags = SA_RESTART; (void)time(&now); /* initialize the time-of-day */ p = paths = ereallocarray(NULL, argc, sizeof(char *)); sigaction(SIGINFO, &sa, NULL); ftsoptions = FTS_NOSTAT|FTS_PHYSICAL; while ((ch = getopt(argc, argv, "Hdf:hLXx")) != -1) switch(ch) { case 'H': ftsoptions |= FTS_COMFOLLOW; ftsoptions |= FTS_PHYSICAL; ftsoptions &= ~FTS_LOGICAL; break; case 'd': isdepth = 1; break; case 'f': *p++ = optarg; break; case 'h': case 'L': ftsoptions &= ~FTS_COMFOLLOW; ftsoptions &= ~FTS_PHYSICAL; ftsoptions |= FTS_LOGICAL; break; case 'X': isxargs = 1; break; case 'x': ftsoptions &= ~FTS_NOSTAT; ftsoptions |= FTS_XDEV; break; case '?': default: usage(); } argc -= optind; argv += optind; /* The first argument that starts with a -, or is a ! or a (, and all * subsequent arguments shall be interpreted as an expression ... * (POSIX.2). */ while (*argv) { if (**argv == '-' || ((**argv == '!' || **argv == '(') && (*argv)[1] == '\0')) break; *p++ = *argv++; } if (p == paths) usage(); *p = NULL; if (!(paths2 = reallocarray(paths, p - paths + 1, sizeof(char *)))) err(1, NULL); paths = paths2; dotfd = open(".", O_RDONLY, 0); exit(find_execute(find_formplan(argv), paths)); } static void usage(void) { (void)fprintf(stderr, "usage: find [-dHhLXx] [-f path] path ... [expression]\n"); exit(1); }