GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/find/misc.c Lines: 15 49 30.6 %
Date: 2017-11-07 Branches: 8 32 25.0 %

Line Branch Exec Source
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/*	$OpenBSD: misc.c,v 1.15 2015/07/14 17:18:48 millert Exp $	*/
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/*-
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 * Copyright (c) 1990, 1993
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * This code is derived from software contributed to Berkeley by
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 * Cimarron D. Taylor of the University of California, Berkeley.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/uio.h>
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#include <err.h>
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#include <errno.h>
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#include <fts.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "find.h"
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/*
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 * brace_subst --
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 *	Replace occurrences of {} in s1 with s2 and return the result string.
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 */
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void
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brace_subst(char *orig, char **store, char *path, int len)
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{
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	int plen;
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	char ch, *p;
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	plen = strlen(path);
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	for (p = *store; (ch = *orig); ++orig)
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		if (ch == '{' && orig[1] == '}') {
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			while ((p - *store) + plen > len) {
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				ptrdiff_t p_off;
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				char *newstore;
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				p_off = (p - *store);
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				newstore = reallocarray(*store, len, 2);
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				if (newstore == NULL)
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					err(1, NULL);
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				p = newstore + p_off;
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				*store = newstore;
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				len *= 2;
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			}
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			memmove(p, path, plen);
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			p += plen;
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			++orig;
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		} else
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			*p++ = ch;
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	*p = '\0';
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}
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/*
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 * queryuser --
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 *	print a message to standard error and then read input from standard
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 *	input. If the input is 'y' then 1 is returned.
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 */
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int
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queryuser(char **argv)
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{
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	int ch, first, nl;
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	(void)fprintf(stderr, "\"%s", *argv);
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	while (*++argv)
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		(void)fprintf(stderr, " %s", *argv);
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	(void)fprintf(stderr, "\"? ");
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	(void)fflush(stderr);
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	first = ch = getchar();
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	for (nl = 0;;) {
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		if (ch == '\n') {
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			nl = 1;
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			break;
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		}
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		if (ch == EOF)
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			break;
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		ch = getchar();
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	}
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	if (!nl) {
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		(void)fprintf(stderr, "\n");
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		(void)fflush(stderr);
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	}
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        return (first == 'y');
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}
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/*
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 * emalloc --
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 *	malloc with error checking.
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 */
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void *
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emalloc(size_t len)
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{
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	void *p;
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	if ((p = malloc(len)))
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		return (p);
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	err(1, NULL);
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}
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void *
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ereallocarray(void *oldp, size_t sz1, size_t sz2)
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{
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	void *p;
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	if ((p = reallocarray(oldp, sz1, sz2)) != NULL)
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		return (p);
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	err(1, NULL);
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}
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/*
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 * show_path --
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 *	called on SIGINFO
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 */
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/* ARGSUSED */
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void
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show_path(int signo)
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{
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	int save_errno = errno;
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	extern FTSENT *entry;
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	struct iovec iov[3];
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	if (entry != NULL) {
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		iov[0].iov_base = "find path: ";
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		iov[0].iov_len = strlen(iov[0].iov_base);
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		iov[1].iov_base = entry->fts_path;
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		iov[1].iov_len = entry->fts_pathlen;
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		iov[2].iov_base = "\n";
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		iov[2].iov_len = strlen(iov[2].iov_base);
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		writev(STDERR_FILENO, iov, 3);
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		errno = save_errno;
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	}
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}