1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Cimarron D. Taylor of the University of California, Berkeley. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 /*static char sccsid[] = "from: @(#)misc.c 5.8 (Berkeley) 5/24/91";*/ 39 static char rcsid[] = "$Id: misc.c,v 1.2 1993/08/01 18:16:12 mycroft Exp $"; 40 #endif /* not lint */ 41 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 #include <sys/errno.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include "find.h" 49 50 /* 51 * brace_subst -- 52 * Replace occurrences of {} in s1 with s2 and return the result string. 53 */ 54 void 55 brace_subst(orig, store, path, len) 56 char *orig, **store, *path; 57 int len; 58 { 59 register int plen; 60 register char ch, *p; 61 62 plen = strlen(path); 63 for (p = *store; ch = *orig; ++orig) 64 if (ch == '{' && orig[1] == '}') { 65 while ((p - *store) + plen > len) 66 if (!(*store = realloc(*store, len *= 2))) 67 err("%s", strerror(errno)); 68 bcopy(path, p, plen); 69 p += plen; 70 ++orig; 71 } else 72 *p++ = ch; 73 *p = '\0'; 74 } 75 76 /* 77 * queryuser -- 78 * print a message to standard error and then read input from standard 79 * input. If the input is 'y' then 1 is returned. 80 */ 81 queryuser(argv) 82 register char **argv; 83 { 84 int ch, first, nl; 85 86 (void)fprintf(stderr, "\"%s", *argv); 87 while (*++argv) 88 (void)fprintf(stderr, " %s", *argv); 89 (void)fprintf(stderr, "\"? "); 90 (void)fflush(stderr); 91 92 first = ch = getchar(); 93 for (nl = 0;;) { 94 if (ch == '\n') { 95 nl = 1; 96 break; 97 } 98 if (ch == EOF) 99 break; 100 ch = getchar(); 101 } 102 103 if (!nl) { 104 (void)fprintf(stderr, "\n"); 105 (void)fflush(stderr); 106 } 107 return(first == 'y'); 108 } 109 110 /* 111 * emalloc -- 112 * malloc with error checking. 113 */ 114 void * 115 emalloc(len) 116 u_int len; 117 { 118 void *p; 119 120 if (p = malloc(len)) 121 return(p); 122 err("%s", strerror(errno)); 123 /* NOTREACHED */ 124 } 125 126 #if __STDC__ 127 #include <stdarg.h> 128 #else 129 #include <varargs.h> 130 #endif 131 132 void 133 #if __STDC__ 134 err(const char *fmt, ...) 135 #else 136 err(fmt, va_alist) 137 char *fmt; 138 va_dcl 139 #endif 140 { 141 va_list ap; 142 #if __STDC__ 143 va_start(ap, fmt); 144 #else 145 va_start(ap); 146 #endif 147 (void)fprintf(stderr, "find: "); 148 (void)vfprintf(stderr, fmt, ap); 149 va_end(ap); 150 (void)fprintf(stderr, "\n"); 151 exit(1); 152 /* NOTREACHED */ 153 } 154