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e2fsprogs
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debugfs: Add the ability to specify the hash seed to the "hash" command 

Also add the ability to specify the hash algorithm by name instead of
by number.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
bitmap-optimize
Theodore Ts'o 2008-09-10 11:30:46 -04:00
parent 52771ab591
commit f8bd55160c
1 changed files with 13 additions and 3 deletions
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16
debugfs/htree.c
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@ -294,10 +294,19 @@ void do_dx_hash(int argc, char *argv[])
hash_seed[0] = hash_seed[1] = hash_seed[2] = hash_seed[3] = 0;
reset_getopt();
while ((c = getopt (argc, argv, "h:")) != EOF) {
while ((c = getopt (argc, argv, "h:s:")) != EOF) {
switch (c) {
case 'h':
hash_version = atoi(optarg);
hash_version = e2p_string2hash(optarg);
if (hash_version < 0)
hash_version = atoi(optarg);
break;
case 's':
if (uuid_parse(optarg, hash_seed)) {
fprintf(stderr, "Invalid UUID format: %s\n",
optarg);
return;
}
break;
default:
goto print_usage;
@ -305,7 +314,8 @@ void do_dx_hash(int argc, char *argv[])
}
if (optind != argc-1) {
print_usage:
com_err(argv[0], 0, "usage: dx_hash filename");
com_err(argv[0], 0, "usage: dx_hash [-h hash_alg] "
"[-s hash_seed] filename");
return;
}
err = ext2fs_dirhash(hash_version, argv[optind], strlen(argv[optind]),