Commit | Line | Data |
---|---|---|
c908b4d4 BJ |
1 | #include <stdio.h> |
2 | #include <sys/param.h> | |
3 | #include <sys/filsys.h> | |
4 | #include <sys/fblk.h> | |
5 | ||
6 | daddr_t blkno = 1; | |
7 | char *dargv[] = { | |
8 | 0, | |
9 | "/dev/rp0a", | |
10 | "/dev/rp2a", | |
11 | "/dev/rp2h", | |
12 | 0 | |
13 | }; | |
14 | ||
15 | ||
16 | struct filsys sblock; | |
17 | ||
18 | int fi; | |
19 | daddr_t alloc(); | |
20 | ||
21 | main(argc, argv) | |
22 | char **argv; | |
23 | { | |
24 | int i; | |
25 | ||
26 | if(argc <= 1) { | |
27 | for(argc = 1; dargv[argc]; argc++); | |
28 | argv = dargv; | |
29 | } | |
30 | ||
31 | for(i=1; i<argc; i++) { | |
32 | dfree(argv[i]); | |
33 | } | |
34 | } | |
35 | ||
36 | dfree(file) | |
37 | char *file; | |
38 | { | |
39 | daddr_t i; | |
40 | ||
41 | fi = open(file, 0); | |
42 | if(fi < 0) { | |
43 | fprintf(stderr,"cannot open %s\n", file); | |
44 | return; | |
45 | } | |
46 | sync(); | |
47 | bread(1L, (char *)&sblock, sizeof(sblock)); | |
48 | i = 0; | |
49 | while(alloc()) | |
50 | i++; | |
51 | printf("%s %D\n", file, i); | |
52 | close(fi); | |
53 | } | |
54 | ||
55 | daddr_t | |
56 | alloc() | |
57 | { | |
58 | int i; | |
59 | daddr_t b; | |
60 | struct fblk buf; | |
61 | ||
62 | i = --sblock.s_nfree; | |
63 | if(i<0 || i>=NICFREE) { | |
64 | printf("bad free count, b=%D\n", blkno); | |
65 | return(0); | |
66 | } | |
67 | b = sblock.s_free[i]; | |
68 | if(b == 0) | |
69 | return(0); | |
70 | if(b<sblock.s_isize || b>=sblock.s_fsize) { | |
71 | printf("bad free block (%D)\n", b); | |
72 | return(0); | |
73 | } | |
74 | if(sblock.s_nfree <= 0) { | |
75 | bread(b, (char *)&buf, sizeof(buf)); | |
76 | blkno = b; | |
77 | sblock.s_nfree = buf.df_nfree; | |
78 | for(i=0; i<NICFREE; i++) | |
79 | sblock.s_free[i] = buf.df_free[i]; | |
80 | } | |
81 | return(b); | |
82 | } | |
83 | ||
84 | bread(bno, buf, cnt) | |
85 | daddr_t bno; | |
86 | char *buf; | |
87 | { | |
88 | int n; | |
89 | extern errno; | |
90 | ||
91 | lseek(fi, bno<<BSHIFT, 0); | |
92 | if((n=read(fi, buf, cnt)) != cnt) { | |
93 | printf("read error %D\n", bno); | |
94 | printf("count = %d; errno = %d\n", n, errno); | |
95 | exit(0); | |
96 | } | |
97 | } |