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File: [local] / src / sbin / fsck_msdos / main.c (download)
Revision 1.24, Mon Sep 24 21:26:02 2018 UTC (5 years, 8 months ago) by deraadt
Use unveil(2). These programs fit together in various strange ways, so if a problem is encountered with this the whole set needs backout and study. |
/* $OpenBSD: main.c,v 1.24 2018/09/24 21:26:02 deraadt Exp $ */ /* $NetBSD: main.c,v 1.8 1996/10/17 20:29:53 cgd Exp $ */ /* * Copyright (C) 1995 Wolfgang Solfrank * Copyright (c) 1995 Martin Husemann * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdlib.h> #include <string.h> #include <ctype.h> #include <stdio.h> #include <unistd.h> #include <errno.h> #include <stdarg.h> #include <err.h> #include "ext.h" int alwaysno; /* assume "no" for all questions */ int alwaysyes; /* assume "yes" for all questions */ int preen; /* set when preening */ int rdonly; /* device is opened read only (supersedes above) */ static void usage(void); int main(int, char **); static void usage(void) { errexit("usage: fsck_msdos [-fnpy] filesystem\n"); } int main(int argc, char *argv[]) { int ch; checkroot(); while ((ch = getopt(argc, argv, "pynf")) != -1) { switch (ch) { case 'f': /* Ignore for consistency with fsck_ffs */ break; case 'n': alwaysno = 1; alwaysyes = preen = 0; break; case 'y': alwaysyes = 1; alwaysno = preen = 0; break; case 'p': preen = 1; alwaysyes = alwaysno = 0; break; default: usage(); break; } } argc -= optind; argv += optind; if (argc != 1) usage(); setcdevname(*argv, NULL, preen); exit (checkfilesys(blockcheck(*argv))); } int ask(int def, const char *fmt, ...) { va_list ap; char prompt[256]; int c; if (preen) { if (rdonly) def = 0; if (def) printf("FIXED\n"); return (def); } va_start(ap, fmt); vsnprintf(prompt, sizeof(prompt), fmt, ap); va_end(ap); if (alwaysyes || rdonly) { printf("%s? %s\n", prompt, rdonly ? "no" : "yes"); return (!rdonly); } do { printf("%s? [Fyn] ", prompt); fflush(stdout); c = getchar(); if (c == 'F') { alwaysyes = 1; return (1); } while (c != '\n' && getchar() != '\n') if (feof(stdin)) return (0); } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); return (c == 'y' || c == 'Y'); }