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Add LHA/LZH archive support

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File type magic signatures chosen based on the extensions supported
by Rust delharc crate.

See: https://docs.rs/delharc/latest/delharc/
This commit is contained in:
Micah Snyder 2023-11-07 23:00:30 -05:00 • committed by Micah Snyder
parent ae37b2216b
commit 3ae9c1e434
23 changed files with 582 additions and 217 deletions
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4
libclamav/unzip.c
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@ -671,7 +671,7 @@ static unsigned int parse_local_file_header(
/* ZMDfmt virname:encrypted(0-1):filename(exact|*):usize(exact|*):csize(exact|*):crc32(exact|*):method(exact|*):fileno(exact|*):maxdepth(exact|*) */
/* Scan file header metadata. */
if (cli_matchmeta(ctx, name, LOCAL_HEADER_csize, LOCAL_HEADER_usize, (LOCAL_HEADER_flags & F_ENCR) != 0, file_count, LOCAL_HEADER_crc32, NULL) == CL_VIRUS) {
if (cli_matchmeta(ctx, name, LOCAL_HEADER_csize, LOCAL_HEADER_usize, (LOCAL_HEADER_flags & F_ENCR) != 0, file_count, LOCAL_HEADER_crc32) == CL_VIRUS) {
*ret = CL_VIRUS;
goto done;
}
@ -861,7 +861,7 @@ parse_central_directory_file_header(
coff += CENTRAL_HEADER_flen;
/* requests do not supply a ctx; also prevent multiple scans */
if (ctx && (CL_VIRUS == cli_matchmeta(ctx, name, CENTRAL_HEADER_csize, CENTRAL_HEADER_usize, (CENTRAL_HEADER_flags & F_ENCR) != 0, file_count, CENTRAL_HEADER_crc32, NULL))) {
if (ctx && (CL_VIRUS == cli_matchmeta(ctx, name, CENTRAL_HEADER_csize, CENTRAL_HEADER_usize, (CENTRAL_HEADER_flags & F_ENCR) != 0, file_count, CENTRAL_HEADER_crc32))) {
last = 1;
*ret = CL_VIRUS;
goto done;