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Annotation of src/usr.bin/find/misc.c, Revision 1.8

1.8     ! millert     1: /*     $OpenBSD: misc.c,v 1.7 2001/11/19 19:02:13 mpech 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";*/
1.8     ! millert    37: static char rcsid[] = "$OpenBSD: misc.c,v 1.7 2001/11/19 19:02:13 mpech Exp $";
1.1       deraadt    38: #endif /* not lint */
                     39:
                     40: #include <sys/types.h>
                     41: #include <sys/stat.h>
                     42:
                     43: #include <err.h>
                     44: #include <errno.h>
                     45: #include <fts.h>
                     46: #include <stdio.h>
                     47: #include <stdlib.h>
                     48: #include <string.h>
1.3       tholo      49: #include <unistd.h>
1.1       deraadt    50:
                     51: #include "find.h"
                     52:
                     53: /*
                     54:  * brace_subst --
                     55:  *     Replace occurrences of {} in s1 with s2 and return the result string.
                     56:  */
                     57: void
                     58: brace_subst(orig, store, path, len)
                     59:        char *orig, **store, *path;
                     60:        int len;
                     61: {
1.7       mpech      62:        int plen;
                     63:        char ch, *p;
1.1       deraadt    64:
                     65:        plen = strlen(path);
1.4       millert    66:        for (p = *store; (ch = *orig); ++orig)
1.1       deraadt    67:                if (ch == '{' && orig[1] == '}') {
                     68:                        while ((p - *store) + plen > len)
                     69:                                if (!(*store = realloc(*store, len *= 2)))
                     70:                                        err(1, NULL);
                     71:                        memmove(p, path, plen);
                     72:                        p += plen;
                     73:                        ++orig;
                     74:                } else
                     75:                        *p++ = ch;
                     76:        *p = '\0';
                     77: }
                     78:
                     79: /*
                     80:  * queryuser --
                     81:  *     print a message to standard error and then read input from standard
                     82:  *     input. If the input is 'y' then 1 is returned.
                     83:  */
                     84: int
                     85: queryuser(argv)
1.7       mpech      86:        char **argv;
1.1       deraadt    87: {
                     88:        int ch, first, nl;
                     89:
                     90:        (void)fprintf(stderr, "\"%s", *argv);
                     91:        while (*++argv)
                     92:                (void)fprintf(stderr, " %s", *argv);
                     93:        (void)fprintf(stderr, "\"? ");
                     94:        (void)fflush(stderr);
                     95:
                     96:        first = ch = getchar();
                     97:        for (nl = 0;;) {
                     98:                if (ch == '\n') {
                     99:                        nl = 1;
                    100:                        break;
                    101:                }
                    102:                if (ch == EOF)
                    103:                        break;
                    104:                ch = getchar();
                    105:        }
                    106:
                    107:        if (!nl) {
                    108:                (void)fprintf(stderr, "\n");
                    109:                (void)fflush(stderr);
                    110:        }
                    111:         return (first == 'y');
                    112: }
                    113:
                    114: /*
                    115:  * emalloc --
                    116:  *     malloc with error checking.
                    117:  */
                    118: void *
                    119: emalloc(len)
                    120:        u_int len;
                    121: {
                    122:        void *p;
                    123:
1.4       millert   124:        if ((p = malloc(len)))
1.1       deraadt   125:                return (p);
                    126:        err(1, NULL);
1.3       tholo     127: }
                    128:
                    129: /*
                    130:  * show_path --
                    131:  *     called on SIGINFO
                    132:  */
                    133: /* ARGSUSED */
                    134: void
                    135: show_path(sig)
                    136:        int sig;
                    137: {
1.5       deraadt   138:        int save_errno = errno;
1.3       tholo     139:        extern FTSENT *entry;
                    140:
1.6       millert   141:        if (entry != NULL) {
                    142:                write(STDERR_FILENO, "find path: ", 11);
                    143:                write(STDERR_FILENO, entry->fts_path, entry->fts_pathlen);
                    144:                write(STDERR_FILENO, "\n", 1);
                    145:                errno = save_errno;
                    146:        }
1.1       deraadt   147: }