Annotation of src/usr.bin/find/misc.c, Revision 1.10
1.10 ! tedu 1: /* $OpenBSD: misc.c,v 1.9 2003/06/26 07:27:29 deraadt Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1990, 1993
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.
1.8 millert 18: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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: #ifndef lint
36: /*static char sccsid[] = "from: @(#)misc.c 8.1 (Berkeley) 6/6/93";*/
1.10 ! tedu 37: static char rcsid[] = "$OpenBSD: misc.c,v 1.9 2003/06/26 07:27:29 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include <sys/types.h>
41: #include <sys/stat.h>
1.9 deraadt 42: #include <sys/uio.h>
1.1 deraadt 43:
44: #include <err.h>
45: #include <errno.h>
46: #include <fts.h>
47: #include <stdio.h>
48: #include <stdlib.h>
49: #include <string.h>
1.3 tholo 50: #include <unistd.h>
1.1 deraadt 51:
52: #include "find.h"
53:
54: /*
55: * brace_subst --
56: * Replace occurrences of {} in s1 with s2 and return the result string.
57: */
58: void
1.9 deraadt 59: brace_subst(char *orig, char **store, char *path, int len)
1.1 deraadt 60: {
1.7 mpech 61: int plen;
62: char ch, *p;
1.1 deraadt 63:
64: plen = strlen(path);
1.4 millert 65: for (p = *store; (ch = *orig); ++orig)
1.1 deraadt 66: if (ch == '{' && orig[1] == '}') {
1.10 ! tedu 67: while ((p - *store) + plen > len) {
! 68: int newlen = len * 2;
! 69: char *newstore;
! 70:
! 71: if (!(newstore = realloc(*store, newlen)))
1.1 deraadt 72: err(1, NULL);
1.10 ! tedu 73: *store = newstore;
! 74: len = newlen;
! 75: }
1.1 deraadt 76: memmove(p, path, plen);
77: p += plen;
78: ++orig;
79: } else
80: *p++ = ch;
81: *p = '\0';
82: }
83:
84: /*
85: * queryuser --
86: * print a message to standard error and then read input from standard
87: * input. If the input is 'y' then 1 is returned.
88: */
89: int
1.9 deraadt 90: queryuser(char **argv)
1.1 deraadt 91: {
92: int ch, first, nl;
93:
94: (void)fprintf(stderr, "\"%s", *argv);
95: while (*++argv)
96: (void)fprintf(stderr, " %s", *argv);
97: (void)fprintf(stderr, "\"? ");
98: (void)fflush(stderr);
99:
100: first = ch = getchar();
101: for (nl = 0;;) {
102: if (ch == '\n') {
103: nl = 1;
104: break;
105: }
106: if (ch == EOF)
107: break;
108: ch = getchar();
109: }
110:
111: if (!nl) {
112: (void)fprintf(stderr, "\n");
113: (void)fflush(stderr);
114: }
115: return (first == 'y');
116: }
117:
118: /*
119: * emalloc --
120: * malloc with error checking.
121: */
122: void *
1.9 deraadt 123: emalloc(u_int len)
1.1 deraadt 124: {
125: void *p;
126:
1.4 millert 127: if ((p = malloc(len)))
1.1 deraadt 128: return (p);
129: err(1, NULL);
1.3 tholo 130: }
131:
132: /*
133: * show_path --
134: * called on SIGINFO
135: */
136: /* ARGSUSED */
137: void
1.9 deraadt 138: show_path(int signo)
1.3 tholo 139: {
1.5 deraadt 140: int save_errno = errno;
1.3 tholo 141: extern FTSENT *entry;
1.9 deraadt 142: struct iovec iov[3];
1.3 tholo 143:
1.6 millert 144: if (entry != NULL) {
1.9 deraadt 145: iov[0].iov_base = "find path: ";
146: iov[0].iov_len = strlen(iov[0].iov_base);
147: iov[1].iov_base = entry->fts_path;
148: iov[1].iov_len = entry->fts_pathlen;
149: iov[2].iov_base = "\n";
150: iov[2].iov_len = strlen(iov[2].iov_base);
151: writev(STDERR_FILENO, iov, 3);
1.6 millert 152: errno = save_errno;
153: }
1.1 deraadt 154: }
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