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-rw-r--r--usr.bin/find/misc.c127
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diff --git a/usr.bin/find/misc.c b/usr.bin/find/misc.c
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+/*-
+ * Copyright (c) 1990, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Cimarron D. Taylor of the University of California, Berkeley.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)misc.c 8.2 (Berkeley) 4/1/94";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fts.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "find.h"
+
+/*
+ * brace_subst --
+ * Replace occurrences of {} in s1 with s2 and return the result string.
+ */
+void
+brace_subst(orig, store, path, len)
+ char *orig, **store, *path;
+ int len;
+{
+ register int plen;
+ register char ch, *p;
+
+ plen = strlen(path);
+ for (p = *store; (ch = *orig) != '\0'; ++orig)
+ if (ch == '{' && orig[1] == '}') {
+ while ((p - *store) + plen > len)
+ if (!(*store = realloc(*store, len *= 2)))
+ err(1, NULL);
+ memmove(p, path, plen);
+ p += plen;
+ ++orig;
+ } else
+ *p++ = ch;
+ *p = '\0';
+}
+
+/*
+ * queryuser --
+ * print a message to standard error and then read input from standard
+ * input. If the input is 'y' then 1 is returned.
+ */
+int
+queryuser(argv)
+ register char **argv;
+{
+ int ch, first, nl;
+
+ (void)fprintf(stderr, "\"%s", *argv);
+ while (*++argv)
+ (void)fprintf(stderr, " %s", *argv);
+ (void)fprintf(stderr, "\"? ");
+ (void)fflush(stderr);
+
+ first = ch = getchar();
+ for (nl = 0;;) {
+ if (ch == '\n') {
+ nl = 1;
+ break;
+ }
+ if (ch == EOF)
+ break;
+ ch = getchar();
+ }
+
+ if (!nl) {
+ (void)fprintf(stderr, "\n");
+ (void)fflush(stderr);
+ }
+ return (first == 'y');
+}
+
+/*
+ * emalloc --
+ * malloc with error checking.
+ */
+void *
+emalloc(len)
+ u_int len;
+{
+ void *p;
+
+ if ((p = malloc(len)) == NULL)
+ err(1, NULL);
+ return (p);
+}
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