1 /* $NetBSD: misc.c,v 1.14 2006/10/11 19:51:10 apb Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Cimarron D. Taylor of the University of California, Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "from: @(#)misc.c 8.2 (Berkeley) 4/1/94"; 39 #else 40 __RCSID("$NetBSD: misc.c,v 1.14 2006/10/11 19:51:10 apb Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <fts.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #include "find.h" 56 57 /* 58 * brace_subst -- 59 * Replace occurrences of {} in orig with path, and place it in a malloced 60 * area of memory set in store. 61 */ 62 void 63 brace_subst(char *orig, char **store, char *path, int *len) 64 { 65 int nlen, plen, rest; 66 char ch, *p, *ostore; 67 68 plen = strlen(path); 69 for (p = *store; (ch = *orig) != '\0'; ++orig) 70 if (ch == '{' && orig[1] == '}') { 71 /* Length of string after the {}. */ 72 rest = strlen(&orig[2]); 73 74 nlen = *len; 75 while ((p - *store) + plen + rest + 1 > nlen) 76 nlen *= 2; 77 78 if (nlen > *len) { 79 ostore = *store; 80 if ((*store = realloc(ostore, nlen)) == NULL) 81 err(1, "realloc"); 82 *len = nlen; 83 p += *store - ostore; /* Relocate. */ 84 } 85 memmove(p, path, plen); 86 p += plen; 87 ++orig; 88 } else 89 *p++ = ch; 90 *p = '\0'; 91 } 92 93 /* 94 * queryuser -- 95 * print a message to standard error and then read input from standard 96 * input. If the input is 'y' then 1 is returned. 97 */ 98 int 99 queryuser(char **argv) 100 { 101 int ch, first, nl; 102 103 (void)fprintf(stderr, "\"%s", *argv); 104 while (*++argv) 105 (void)fprintf(stderr, " %s", *argv); 106 (void)fprintf(stderr, "\"? "); 107 (void)fflush(stderr); 108 109 first = ch = getchar(); 110 for (nl = 0;;) { 111 if (ch == '\n') { 112 nl = 1; 113 break; 114 } 115 if (ch == EOF) 116 break; 117 ch = getchar(); 118 } 119 120 if (!nl) { 121 (void)fprintf(stderr, "\n"); 122 (void)fflush(stderr); 123 } 124 return (first == 'y'); 125 } 126 127 /* 128 * show_path -- 129 * called on SIGINFO 130 */ 131 /* ARGSUSED */ 132 void 133 show_path(int sig) 134 { 135 extern FTSENT *g_entry; 136 int errno_bak; 137 138 if (g_entry == NULL) { 139 /* 140 * not initialized yet. 141 * assumption: pointer assignment is atomic. 142 */ 143 return; 144 } 145 146 errno_bak = errno; 147 write(STDERR_FILENO, "find path: ", 11); 148 write(STDERR_FILENO, g_entry->fts_path, g_entry->fts_pathlen); 149 write(STDERR_FILENO, "\n", 1); 150 errno = errno_bak; 151 } 152