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[] = "@(#)misc.c 5.8 (Berkeley) 5/24/91"; 39 #endif /* not lint */ 40 41 #include <sys/types.h> 42 #include <sys/stat.h> 43 #include <sys/errno.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include "find.h" 48 49 /* 50 * brace_subst -- 51 * Replace occurrences of {} in s1 with s2 and return the result string. 52 */ 53 void 54 brace_subst(orig, store, path, len) 55 char *orig, **store, *path; 56 int len; 57 { 58 register int plen; 59 register char ch, *p; 60 61 plen = strlen(path); 62 for (p = *store; ch = *orig; ++orig) 63 if (ch == '{' && orig[1] == '}') { 64 while ((p - *store) + plen > len) 65 if (!(*store = realloc(*store, len *= 2))) 66 err("%s", strerror(errno)); 67 bcopy(path, p, plen); 68 p += plen; 69 ++orig; 70 } else 71 *p++ = ch; 72 *p = '\0'; 73 } 74 75 /* 76 * queryuser -- 77 * print a message to standard error and then read input from standard 78 * input. If the input is 'y' then 1 is returned. 79 */ 80 queryuser(argv) 81 register char **argv; 82 { 83 int ch, first, nl; 84 85 (void)fprintf(stderr, "\"%s", *argv); 86 while (*++argv) 87 (void)fprintf(stderr, " %s", *argv); 88 (void)fprintf(stderr, "\"? "); 89 (void)fflush(stderr); 90 91 first = ch = getchar(); 92 for (nl = 0;;) { 93 if (ch == '\n') { 94 nl = 1; 95 break; 96 } 97 if (ch == EOF) 98 break; 99 ch = getchar(); 100 } 101 102 if (!nl) { 103 (void)fprintf(stderr, "\n"); 104 (void)fflush(stderr); 105 } 106 return(first == 'y'); 107 } 108 109 /* 110 * emalloc -- 111 * malloc with error checking. 112 */ 113 void * 114 emalloc(len) 115 u_int len; 116 { 117 void *p; 118 119 if (p = malloc(len)) 120 return(p); 121 err("%s", strerror(errno)); 122 /* NOTREACHED */ 123 } 124 125 #if __STDC__ 126 #include <stdarg.h> 127 #else 128 #include <varargs.h> 129 #endif 130 131 void 132 #if __STDC__ 133 err(const char *fmt, ...) 134 #else 135 err(fmt, va_alist) 136 char *fmt; 137 va_dcl 138 #endif 139 { 140 va_list ap; 141 #if __STDC__ 142 va_start(ap, fmt); 143 #else 144 va_start(ap); 145 #endif 146 (void)fprintf(stderr, "find: "); 147 (void)vfprintf(stderr, fmt, ap); 148 va_end(ap); 149 (void)fprintf(stderr, "\n"); 150 exit(1); 151 /* NOTREACHED */ 152 } 153