![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to fsck.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [MW Coherent from dump] / coherent / b / etc / fsck|
Return to fsck.h CVS log | Up to [MW Coherent from dump] / coherent / b / etc / fsck |
1.1 root 1: /*
2: * Header file for fsck -- File System Check Program
3: *
4: */
5:
6: #include <sys/types.h>
7: #include <canon.h>
8: #include <dirent.h>
9: #include <sys/fblk.h>
10: #include <sys/filsys.h>
11: #include <sys/ino.h>
12: #include <sys/stat.h>
13: #include <time.h>
14:
15: #if _I386
16: #define SMALLMODEL 0
17: #else
18: #define SMALLMODEL 1
19: #endif
20:
21: #if HPCOHERENT
22: typedef long fsize_t;
23: #endif
24:
25: /*
26: * Conditional Compilation Flags
27: */
28:
29: #define NOT_ALL_ZERO_INODE /* Dependent on whether or not an inode */
30: #ifdef ALL_ZERO_INODE /* is totally zeroed when unallocated */
31: #undef ALL_ZERO_INODE /* or simply a zero mode and zero link */
32: #endif
33:
34:
35: /*
36: * Definitions and Externs
37: */
38:
39: #define NUL 0 /* true zero ! */
40: #define NULL ((char *)0)
41:
42: #define YES 3 /* default actions */
43: #define NO 2
44: #define ASK 1
45:
46: #if SMALLMODEL
47: #define NFILSYS 10 /* max number of file systems */
48: #else
49: #define NFILSYS 256 /* max number of file systems */
50: #endif
51:
52: #define MAXCH 20 /* max length of filesys name */
53:
54: #define MAXBADOK 10 /* Max number of bad blocks before excessive */
55: extern int numbad; /* num bad blocks found so far this inode*/
56:
57: #define MAXDUPOK 10 /* Max number of dup blocks */
58: /* in a single inode before excessive */
59: #if SMALLMODEL
60: #define DUPTBLSIZE 64 /* Max number of dup referenced blocks */
61: #else
62: #define DUPTBLSIZE 1024 /* Max number of dup referenced blocks */
63: #endif
64:
65: extern daddr_t dupblck[]; /* table of duplicate referenced blocks */
66: extern int totdups; /* number of dup blocks found so far */
67:
68: #define MAXBADFREE 10 /* max bad in free list before abort */
69: #define MAXDUPFREE 10 /* max dup in free list before abort */
70:
71: #define GOOD 1 /* returned by bad() in util.c */
72: #define BAD 0
73:
74: #define TRUE 1 /* errflag possibilities */
75: #define FALSE 0
76: extern int errflag; /* errflag indicates not to do phases */
77:
78: #define OK 1 /* used to indicate excessive bad/dup */
79: #define STOP 0 /* blocks in an inode in phase1.c */
80: #define BAD_DUP 2
81:
82: #define FIRSTIN 2 /* First real inode number */
83:
84: #define ND 10 /* Number of Direct Blocks */
85: #undef NI
86: #define NI 1
87: #define NII 1
88: #define NIII 1
89: #undef NADDR
90: #define NADDR (ND+NI+NII+NIII)
91: extern int offsets[]; /* table of offsets for level of indirection */
92: /* for the blocks in an inode */
93:
94: extern char nextchar(); /* used in util.c */
95: extern int fsfd; /* file system file descriptor */
96: extern int mdaction; /* default action for this invocation */
97: extern int daction; /* default action for current file system */
98: extern int writeflg; /* system write ok or read-only */
99: extern int qflag; /* quiet fsck flag */
100: extern int fflag; /* fast fsck flag */
101: extern int sflag; /* force free list salvation */
102: extern daddr_t fsize; /* file system size in blocks */
103: extern int isize; /* first block not in inode list */
104: /* isize is NOT unsigned so that comparisons */
105: /* with longs will not cast the long to */
106: /* unsigned thus producing confusing results */
107:
108: extern daddr_t totfree; /* running count of total free blocks */
109: extern unsigned ninodes;/* Number of inodes in the files system */
110: extern char *fsname; /* file system name */
111: extern fsize_t pinfo(); /* returns size of file, in phase2.c */
112: extern ino_t lostfound(); /* returns inumber of lost+found dir */
113: extern struct dinode *ptrino(); /* returns a ptr to inode, give number */
114: extern char databuf[]; /* buffer to read in block, used throughout */
115: extern char buf2[]; /* alternate data buffer */
116: extern daddr_t cdbn; /* current block number, used by nextblock() */
117: #define DSIZE (sizeof(struct direct))
118: extern char *lostname; /* name of lost+found directory */
119: extern char *nameit(); /* nameing function for lost dirs and files */
120: extern int depth; /* used during tree traversal in phase2.c */
121: extern struct direct *path[]; /* used during tree traversal in phase2.c */
122: extern char *typename(); /* return string to type of inode */
123: extern struct filsys *sbp; /* Super Block */
124: extern int sbpfix; /* flag for super block fixes */
125: extern struct stat stats; /* used by statit() in util.c */
126: extern dev_t rootdev; /* root device number */
127: extern dev_t fsysrdev; /* file system real device number */
128: extern int mounted; /* flag indicating mountedness of filesystem */
129: extern int changeflg; /* file system modified flag */
130: extern int fixerup; /* flag to rebuild free list */
131: extern char *fixit; /* Prompt message phase[45].c */
132: extern int numfiles; /* num files in system */
133: extern daddr_t imap(); /* function for disk block mapping in util.c */
134: extern fsize_t lostsize; /* Size of files cleared in phase4.c */
135: extern char *tempFile; /* TMP File name for virtual.c */
136:
137: #define SUCCESS 1 /* used in connect() in phase3.c */
138: #define FAILURE 0
139:
140: #define MODEMASK 0x07
141: #define ALLOCMASK 0x06
142: #define UNALLOC 0x00
143: #define UNKNOWN 0x01
144: #define IDIR 0x02
145: #define IREG 0x03
146: #define ICHR 0x04
147: #define IBLK 0x05
148: #define IPIPE 0x06
149: #define IBAD_IDUP 0x08
150: #define VISITED 0x10
151: #define UNREFDIR 0x20
152: #define CHILDDIR 0x40
153: #define IFREELIST 0x80
154:
155: /*
156: * Macros for tables
157: */
158:
159: #if SMALLMODEL
160: /* Actions for virtual block system */
161: enum vact { testBlock, markBlock, unmarkBlock, grabBlock,
162: testDup, markDup, unmarkDup, setDup,
163: Flags, setFlags, orFlags,
164: linkCtr, incLinkctr, setLinkctr };
165:
166: #define testblock(bn) findblock((unsigned long)(bn), testBlock)
167: #define markblock(bn) findblock((unsigned long)(bn), markBlock)
168: #define unmarkblock(bn) findblock((unsigned long)(bn), unmarkBlock)
169:
170: #define testdup(bn) findblock((unsigned long)(bn), testDup)
171: #define markdup(bn) findblock((unsigned long)(bn), markDup)
172: #define unmarkdup(bn) findblock((unsigned long)(bn), unmarkDup)
173:
174: #define flags(ino) findblock((unsigned long)(ino), Flags)
175: #define setflags(ino, data) findblock((unsigned long)(ino), setFlags, data)
176: #define orflags(ino, data) findblock((unsigned long)(ino), orFlags, data)
177:
178: #define linkctr(ino) findblock((unsigned long)(ino), linkCtr)
179: #define inclinkctr(ino) findblock((unsigned long)(ino), incLinkctr)
180: #define setlinkctr(ino, data) findblock((unsigned long)(ino), setLinkctr, data)
181:
182: #define badblks(ino) (flags(ino)&IBAD_IDUP)
183:
184: #else
185: unsigned short *linkPtr;
186: unsigned char *flagPtr, *blockPtr, *dupPtr;
187:
188: #define bix(bn) (((unsigned long)(bn)) >> LOGNBPC)
189: #define bitm(bn) (1 << ((bn) & (NBPC - 1)))
190:
191: #define testblock(bn) (blockPtr[bix(bn)] & bitm(bn))
192: #define markblock(bn) (blockPtr[bix(bn)] |= bitm(bn))
193: #define unmarkblock(bn) (blockPtr[bix(bn)] ^= bitm(bn))
194:
195: #define testdup(bn) (dupPtr[bix(bn)] & bitm(bn))
196: #define markdup(bn) (dupPtr[bix(bn)] |= bitm(bn))
197: #define unmarkdup(bn) (dupPtr[bix(bn)] ^= bitm(bn))
198:
199: #define flags(ino) flagPtr[ino - 1]
200: #define setflags(ino, data) (flags(ino) = data)
201: #define orflags(ino, data) (flags(ino) |= data)
202:
203: #define linkctr(ino) linkPtr[ino - 1]
204: #define inclinkctr(ino) (++linkctr(ino))
205: #define setlinkctr(ino, data) (linkctr(ino) = data)
206:
207: #define badblks(ino) (flags(ino) & IBAD_IDUP)
208: #endif
209:
210: /*
211: * Miscellany
212: */
213: #define NBPC 8 /* number of bits per character */
214: #define LOGNBPC 3 /* Log2 Number of Bits per Character */
215: #define MAXINTN 255 /* used for interleave table */
216: /* in phase6.c */
217: /*
218: * Stdio Stuff
219: */
220: extern char *malloc();
221: extern char *calloc();
222: #undef putchar(c)
223: #define putchar(c) { char b = c; write(1, &b, 1); }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.