145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/* $NetBSD: misc.c,v 1.14 2006/10/11 19:51:10 apb Exp $ */
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/*-
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* Copyright (c) 1990, 1993, 1994
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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/cdefs.h>
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#include <sys/types.h>
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#include <sys/stat.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 <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 orig with path, and place it in a malloced
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* area of memory set in store.
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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 nlen, plen, rest;
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char ch, *p, *ostore;
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plen = strlen(path);
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for (p = *store; (ch = *orig) != '\0'; ++orig)
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if (ch == '{' && orig[1] == '}') {
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/* Length of string after the {}. */
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rest = strlen(&orig[2]);
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nlen = *len;
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while ((p - *store) + plen + rest + 1 > nlen)
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nlen *= 2;
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if (nlen > *len) {
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ostore = *store;
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if ((*store = realloc(ostore, nlen)) == NULL)
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err(1, "realloc");
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*len = nlen;
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p += *store - ostore; /* Relocate. */
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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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* 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 sig)
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{
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extern FTSENT *g_entry;
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int errno_bak;
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if (g_entry == NULL) {
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/*
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* not initialized yet.
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* assumption: pointer assignment is atomic.
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*/
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return;
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}
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errno_bak = errno;
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write(STDERR_FILENO, "find path: ", 11);
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write(STDERR_FILENO, g_entry->fts_path, g_entry->fts_pathlen);
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write(STDERR_FILENO, "\n", 1);
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errno = errno_bak;
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}
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