30  * In-core structures:
68  *	pre-combined through the {D,F,S}ZLINK, DFOUND, and
72  *	Three state-test macros are provided: S_IS_DUNFOUND(),
93  *	Each entry is initialized to the di_link from the on-disk
99  *	an extra reference.  This is a can't-happen, except in the
101  *	to lost+found.  An exact match between lncntp[] and the on-disk
143 #define	ALL_no		'n'	/* auto-answer interactive questions `no' */
144 #define	ALL_NO		'N'	/* auto-answer interactive questions `no' */
145 #define	UFS_OPTS	'o'	/* ufs-specific options, see subopts[] */
147 #define	ALL_yes		'y'	/* auto-answer interactive questions `yes' */
148 #define	ALL_YES		'Y'	/* auto-answer interactive questions `yes' */
152 #define	PREEN		0	/* non-interactive mode (parent is parallel) */
166  * Filesystems that are `magical' - if they exist in vfstab,
242 			 * ufs specific options.  in main()
289 				(void) printf("fsck -F ufs ");  in main()
310 	argc -= optind;  in main()
339 	 * wrapper, we were only given one filesystem to check, so the  in main()
340 	 * multi-fs case implies being run manually; that means the  in main()
344 	while (argc-- > 0) {  in main()
361  * exit, so ret does not actually need to be pre-initialized.  Lint
368 	long ret = -1;  in argtol()
374 		(void) fprintf(stderr, "-%c flag requires a %s\n", flag, req);  in argtol()
378 		(void) fprintf(stderr, "-%c %s value out of range\n",  in argtol()
401 	mountfd = -1;  in checkfilesys()
448 		(void) printf("** Phase 1 - Check Blocks and Sizes\n");  in checkfilesys()
457 			pfatal("INTERNAL ERROR: dups with -o p");  in checkfilesys()
458 		(void) printf("** Phase 1b - Rescan For More DUPS\n");  in checkfilesys()
466 		(void) printf("** Phase 2 - Check Pathnames\n");  in checkfilesys()
473 		(void) printf("** Phase 3a - Check Connectivity\n");  in checkfilesys()
480 		(void) printf("** Phase 3b - Verify Shadows/ACLs\n");  in checkfilesys()
487 		(void) printf("** Phase 4 - Check Reference Counts\n");  in checkfilesys()
494 		(void) printf("** Phase 5 - Check Cylinder Groups\n");  in checkfilesys()
572 	files = maxino - UFSROOTINO - sblock.fs_cstotal.cs_nifree - n_files;  in checkfilesys()
574 	    sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));  in checkfilesys()
575 	blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);  in checkfilesys()
577 	blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks;  in checkfilesys()
579 		countdirs = sblock.fs_cstotal.cs_ndir - countdirs;  in checkfilesys()
581 		    countdirs, files - countdirs,  in checkfilesys()
614 			pwarn("%d inodes missing\n", -files);  in checkfilesys()
616 			pwarn("%lld blocks missing\n", -(longlong_t)blks);  in checkfilesys()
695 		if (fswritefd != -1) {  in checkfilesys()
708  * fsck -m: does the filesystem pass cursory examination
734 		"ufs fsck: sanity check failed : cannot stat %s\n", filename);  in check_sanity()
779 		    "ufs fsck: sanity check: %s already mounted\n", filename);  in check_sanity()
786 			(void) fprintf(stderr, "ufs fsck: Cannot stat %s\n",  in check_sanity()
799 			    "ufs fsck: sanity check:"  in check_sanity()
806 	 * We know that at boot, the ufs root file system is mounted  in check_sanity()
807 	 * read-only first.  After fsck runs, it is remounted as  in check_sanity()
808 	 * read-write.  Therefore, we do not need to check for different  in check_sanity()
814 		    "ufs fsck: sanity check: %s needs checking\n", filename);  in check_sanity()
821 		    "ufs fsck: sanity check: %s okay\n", filename);  in check_sanity()
824 		    "ufs fsck: sanity check: %s needs checking\n", filename);  in check_sanity()
835 	if (vfs->vfs_mntopts == NULL)  in hasvfsopt()
837 	mtab.mnt_mntopts = vfs->vfs_mntopts;  in hasvfsopt()
845 	    "ufs usage: fsck [-F ufs] [-m] [-n] [-V] [-v] [-y] "  in usage()
846 	    "[-o p,b=#,w,f] [special ....]\n");  in usage()