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Move seamless .Z support into unpack_gz_stream

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unpack_gz_stream                                     566     643     +77
unpack_gunzip                                        123      12    -111

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2012-03-06 16:32:06 +01:00
parent 8a6a2f9c9c
commit 02c3c38420
3 changed files with 21 additions and 25 deletions
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24
archival/bbunzip.c
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@@ -274,29 +274,7 @@ char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UN
static
IF_DESKTOP(long long) int FAST_FUNC unpack_gunzip(transformer_aux_data_t *aux)
{
IF_DESKTOP(long long) int status = -1;
uint16_t magic2;
//TODO: fold below into unpack_gz_stream? Then the whole level of indirection
// unpack_FOO() -> unpack_FOO_stream can be collapsed in this module!
aux->check_signature = 0; /* we will check it here, not in unpack_*_stream */
if (full_read(STDIN_FILENO, &magic2, 2) != 2)
goto bad_magic;
if (ENABLE_FEATURE_SEAMLESS_Z && magic2 == COMPRESS_MAGIC) {
status = unpack_Z_stream(aux, STDIN_FILENO, STDOUT_FILENO);
} else if (magic2 == GZIP_MAGIC) {
status = unpack_gz_stream(aux, STDIN_FILENO, STDOUT_FILENO);
} else {
bad_magic:
bb_error_msg("invalid magic");
/* status is still == -1 */
}
if (status < 0) {
bb_error_msg("error inflating");
}
return status;
return unpack_gz_stream(aux, STDIN_FILENO, STDOUT_FILENO);
}
/*
* Linux kernel build uses gzip -d -n. We accept and ignore it.