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Commit | Line | Data |
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0271611e | 1 | #include "cache.h" |
32637cdf | 2 | #include "pack.h" |
0271611e LT |
3 | |
4 | int main(int argc, char **argv) | |
5 | { | |
6 | int i; | |
7 | unsigned nr; | |
32637cdf | 8 | unsigned int version; |
0271611e LT |
9 | static unsigned int top_index[256]; |
10 | ||
32637cdf NP |
11 | if (fread(top_index, 2 * 4, 1, stdin) != 1) |
12 | die("unable to read header"); | |
13 | if (top_index[0] == htonl(PACK_IDX_SIGNATURE)) { | |
14 | version = ntohl(top_index[1]); | |
15 | if (version < 2 || version > 2) | |
16 | die("unknown index version"); | |
17 | if (fread(top_index, 256 * 4, 1, stdin) != 1) | |
18 | die("unable to read index"); | |
19 | } else { | |
20 | version = 1; | |
21 | if (fread(&top_index[2], 254 * 4, 1, stdin) != 1) | |
22 | die("unable to read index"); | |
23 | } | |
0271611e LT |
24 | nr = 0; |
25 | for (i = 0; i < 256; i++) { | |
26 | unsigned n = ntohl(top_index[i]); | |
27 | if (n < nr) | |
28 | die("corrupt index file"); | |
29 | nr = n; | |
30 | } | |
32637cdf NP |
31 | if (version == 1) { |
32 | for (i = 0; i < nr; i++) { | |
33 | unsigned int offset, entry[6]; | |
0271611e | 34 | |
32637cdf NP |
35 | if (fread(entry, 4 + 20, 1, stdin) != 1) |
36 | die("unable to read entry %u/%u", i, nr); | |
37 | offset = ntohl(entry[0]); | |
38 | printf("%u %s\n", offset, sha1_to_hex((void *)(entry+1))); | |
39 | } | |
40 | } else { | |
41 | unsigned off64_nr = 0; | |
42 | struct { | |
43 | unsigned char sha1[20]; | |
44 | uint32_t crc; | |
45 | uint32_t off; | |
46 | } *entries = xmalloc(nr * sizeof(entries[0])); | |
47 | for (i = 0; i < nr; i++) | |
48 | if (fread(entries[i].sha1, 20, 1, stdin) != 1) | |
49 | die("unable to read sha1 %u/%u", i, nr); | |
50 | for (i = 0; i < nr; i++) | |
51 | if (fread(&entries[i].crc, 4, 1, stdin) != 1) | |
52 | die("unable to read crc %u/%u", i, nr); | |
53 | for (i = 0; i < nr; i++) | |
54 | if (fread(&entries[i].off, 4, 1, stdin) != 1) | |
55 | die("unable to read 32b offset %u/%u", i, nr); | |
56 | for (i = 0; i < nr; i++) { | |
57 | uint64_t offset; | |
58 | uint32_t off = ntohl(entries[i].off); | |
59 | if (!(off & 0x80000000)) { | |
60 | offset = off; | |
61 | } else { | |
62 | uint32_t off64[2]; | |
63 | if ((off & 0x7fffffff) != off64_nr) | |
64 | die("inconsistent 64b offset index"); | |
65 | if (fread(off64, 8, 1, stdin) != 1) | |
66 | die("unable to read 64b offset %u", off64_nr); | |
67 | offset = (((uint64_t)ntohl(off64[0])) << 32) | | |
68 | ntohl(off64[1]); | |
69 | off64_nr++; | |
70 | } | |
6e1c2344 RJ |
71 | printf("%" PRIuMAX " %s (%08"PRIx32")\n", |
72 | (uintmax_t) offset, | |
32637cdf NP |
73 | sha1_to_hex(entries[i].sha1), |
74 | ntohl(entries[i].crc)); | |
75 | } | |
76 | free(entries); | |
0271611e LT |
77 | } |
78 | return 0; | |
79 | } |