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a2b09415 WJ |
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 | } |