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 * %sccs.include.redist.c% 9 */ 10 11 #ifndef lint 12 static char sccsid[] = "@(#)misc.c 5.5 (Berkeley) 11/15/90"; 13 #endif /* not lint */ 14 15 #include <sys/types.h> 16 #include <sys/stat.h> 17 #include <sys/errno.h> 18 #include <stdio.h> 19 #include "find.h" 20 #include <stdlib.h> 21 #include <string.h> 22 23 /* 24 * brace_subst -- 25 * Replace occurrences of {} in s1 with s2 and return the result string. 26 */ 27 void 28 brace_subst(orig, store, path, len) 29 char *orig, **store, *path; 30 int len; 31 { 32 register int plen; 33 register char ch, *p; 34 35 plen = strlen(path); 36 for (p = *store; ch = *orig; ++orig) 37 if (ch == '{' && orig[1] == '}') { 38 while ((p - *store) + plen > len) 39 if (!(*store = realloc(*store, len *= 2))) { 40 (void)fprintf(stderr, 41 "find: %s.\n", strerror(errno)); 42 exit(1); 43 } 44 bcopy(path, p, plen); 45 p += plen; 46 ++orig; 47 } else 48 *p++ = ch; 49 *p = '\0'; 50 } 51 52 /* 53 * queryuser -- 54 * print a message to standard error and then read input from standard 55 * input. If the input is 'y' then 1 is returned. 56 */ 57 queryuser(argv) 58 register char **argv; 59 { 60 int ch, first, nl; 61 62 (void)fprintf(stderr, "\"%s", *argv); 63 while (*++argv) 64 (void)fprintf(stderr, " %s", *argv); 65 (void)fprintf(stderr, "\"? "); 66 (void)fflush(stderr); 67 68 first = ch = getchar(); 69 for (nl = 0;;) { 70 if (ch == '\n') { 71 nl = 1; 72 break; 73 } 74 if (ch == EOF) 75 break; 76 ch = getchar(); 77 } 78 79 if (!nl) { 80 (void)fprintf(stderr, "\n"); 81 (void)fflush(stderr); 82 } 83 return(first == 'y'); 84 } 85 86 /* 87 * bad_arg -- 88 * print out a bad argument message. 89 */ 90 void 91 bad_arg(option, error) 92 char *option, *error; 93 { 94 (void)fprintf(stderr, "find: %s: %s.\n", option, error); 95 exit(1); 96 } 97 98 /* 99 * emalloc -- 100 * malloc with error checking. 101 */ 102 void * 103 emalloc(len) 104 u_int len; 105 { 106 void *p; 107 108 if (!(p = malloc(len))) { 109 (void)fprintf(stderr, "find: %s.\n", strerror(errno)); 110 exit(1); 111 } 112 return(p); 113 } 114 115 usage() 116 { 117 if (isdeprecated) 118 (void)fprintf(stderr, "usage: find path-list expression\n"); 119 else 120 (void)fprintf(stderr, 121 "usage: find [-drsx] -f path ... expression\n"); 122 exit(1); 123 } 124