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cab: remove unused header and entry fields

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Remove CAB fields that are parsed or reset but never read.
This commit is contained in:
datauwu committed 2026-07-02 21:44:48 +08:00
1 parent 4f9f341f16
commit ebe53f5fcd
1 file changed
-9
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libarchive/archive_read_support_format_cab.c
-9
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@@ -267,8 +267,6 @@ struct cffile {
};
struct cfheader {
/* Total bytes of all file size in a Cabinet. */
uint32_t total_bytes;
uint32_t files_offset;
uint16_t folder_count;
uint16_t file_count;
@@ -276,7 +274,6 @@ struct cfheader {
#define PREV_CABINET 0x0001
#define NEXT_CABINET 0x0002
#define RESERVE_PRESENT 0x0004
uint16_t setid;
uint16_t cabinet;
/* Version number. */
unsigned char major;
@@ -295,8 +292,6 @@ struct cab {
int64_t entry_offset;
int64_t entry_bytes_remaining;
int64_t entry_unconsumed;
int64_t entry_compressed_bytes_read;
int64_t entry_uncompressed_bytes_read;
struct cffolder *entry_cffolder;
struct cffile *entry_cffile;
struct cfdata *entry_cfdata;
@@ -690,7 +685,6 @@ cab_read_header(struct archive_read *a)
"Couldn't find out CAB header");
return (ARCHIVE_FATAL);
}
hd->total_bytes = archive_le32dec(p + CFHEADER_cbCabinet);
hd->files_offset = archive_le32dec(p + CFHEADER_coffFiles);
hd->minor = p[CFHEADER_versionMinor];
hd->major = p[CFHEADER_versionMajor];
@@ -701,7 +695,6 @@ cab_read_header(struct archive_read *a)
if (hd->file_count == 0)
goto invalid;
hd->flags = archive_le16dec(p + CFHEADER_flags);
hd->setid = archive_le16dec(p + CFHEADER_setID);
hd->cabinet = archive_le16dec(p + CFHEADER_iCabinet);
used = CFHEADER_iCabinet + 2;
if (hd->flags & RESERVE_PRESENT) {
@@ -945,8 +938,6 @@ archive_read_format_cab_read_header(struct archive_read *a,
cab->end_of_entry = 0;
cab->end_of_entry_cleanup = 0;
cab->entry_compressed_bytes_read = 0;
cab->entry_uncompressed_bytes_read = 0;
cab->entry_unconsumed = 0;
cab->entry_cffile = file;