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main.c revision 1.20.4.1 
      1 /*	$NetBSD: main.c,v 1.20.4.1 2008/06/23 04:29:57 wrstuden Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1995 Wolfgang Solfrank
      5  * Copyright (c) 1995 Martin Husemann
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 
     29 #include <sys/cdefs.h>
     30 #ifndef lint
     31 __RCSID("$NetBSD: main.c,v 1.20.4.1 2008/06/23 04:29:57 wrstuden Exp $");
     32 #endif /* not lint */
     33 
     34 #include <stdlib.h>
     35 #include <string.h>
     36 #include <stdio.h>
     37 #include <unistd.h>
     38 #include <errno.h>
     39 #include <stdarg.h>
     40 #include <signal.h>
     41 
     42 #include "fsutil.h"
     43 #include "ext.h"
     44 #include "exitvalues.h"
     45 
     46 int alwaysno;		/* assume "no" for all questions */
     47 int alwaysyes;		/* assume "yes" for all questions */
     48 int preen;		/* set when preening */
     49 int rdonly;		/* device is opened read only (supersedes above) */
     50 
     51 static void usage(void) __dead;
     52 
     53 static void
     54 usage(void)
     55 {
     56     	(void)fprintf(stderr, "Usage: %s [-fnpy] filesystem ... \n",
     57 	    getprogname());
     58 	exit(FSCK_EXIT_USAGE);
     59 }
     60 
     61 static void
     62 catch(int n)
     63 {
     64 	exit(FSCK_EXIT_SIGNALLED);
     65 }
     66 
     67 int
     68 main(int argc, char **argv)
     69 {
     70 	int ret = FSCK_EXIT_OK, erg;
     71 	int ch;
     72 
     73 	while ((ch = getopt(argc, argv, "pPqynf")) != -1) {
     74 		switch (ch) {
     75 		case 'f':
     76 			/*
     77 			 * We are always forced, since we don't
     78 			 * have a clean flag
     79 			 */
     80 			break;
     81 		case 'n':
     82 			alwaysno = 1;
     83 			alwaysyes = preen = 0;
     84 			break;
     85 		case 'y':
     86 			alwaysyes = 1;
     87 			alwaysno = preen = 0;
     88 			break;
     89 
     90 		case 'p':
     91 			preen = 1;
     92 			alwaysyes = alwaysno = 0;
     93 			break;
     94 
     95 		case 'P':		/* Progress meter not implemented. */
     96 			break;
     97 
     98 		case 'q':		/* Quiet not implemented. */
     99 			break;
    100 
    101 		default:
    102 			usage();
    103 			break;
    104 		}
    105 	}
    106 	argc -= optind;
    107 	argv += optind;
    108 
    109 	if (!argc)
    110 		usage();
    111 
    112 	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
    113 		(void) signal(SIGINT, catch);
    114 	if (preen)
    115 		(void) signal(SIGQUIT, catch);
    116 
    117 	while (--argc >= 0) {
    118 		setcdevname(*argv, preen);
    119 		erg = checkfilesys(*argv++);
    120 		if (erg > ret)
    121 			ret = erg;
    122 	}
    123 
    124 	return ret;
    125 }
    126 
    127 
    128 /*VARARGS*/
    129 int
    130 ask(int def, const char *fmt, ...)
    131 {
    132 	va_list ap;
    133 
    134 	char prompt[256];
    135 	int c;
    136 
    137 	if (preen) {
    138 		if (rdonly)
    139 			def = 0;
    140 		if (def)
    141 			printf("FIXED\n");
    142 		return def;
    143 	}
    144 
    145 	va_start(ap, fmt);
    146 	vsnprintf(prompt, sizeof(prompt), fmt, ap);
    147 	va_end(ap);
    148 	if (alwaysyes || rdonly) {
    149 		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
    150 		return !rdonly;
    151 	}
    152 	do {
    153 		printf("%s? [yn] ", prompt);
    154 		fflush(stdout);
    155 		c = getchar();
    156 		while (c != '\n' && getchar() != '\n')
    157 			if (feof(stdin))
    158 				return 0;
    159 	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
    160 	return c == 'y' || c == 'Y';
    161 }
    162