diff options
Diffstat (limited to 'src/Common/libzip/zip_stat_index.c')
-rw-r--r-- | src/Common/libzip/zip_stat_index.c | 79 |
1 files changed, 55 insertions, 24 deletions
diff --git a/src/Common/libzip/zip_stat_index.c b/src/Common/libzip/zip_stat_index.c index 71f80491..da33c09e 100644 --- a/src/Common/libzip/zip_stat_index.c +++ b/src/Common/libzip/zip_stat_index.c @@ -3,7 +3,7 @@ Copyright (C) 1999-2020 Dieter Baron and Thomas Klausner This file is part of libzip, a library to manipulate ZIP archives. - The authors can be contacted at <libzip@nih.at> + The authors can be contacted at <info@libzip.org> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions @@ -39,37 +39,68 @@ ZIP_EXTERN int zip_stat_index(zip_t *za, zip_uint64_t index, zip_flags_t flags, zip_stat_t *st) { const char *name; zip_dirent_t *de; + zip_entry_t *entry; - if ((de = _zip_get_dirent(za, index, flags, NULL)) == NULL) - return -1; + if ((de = _zip_get_dirent(za, index, flags, NULL)) == NULL) { + return -1; + } - if ((name = zip_get_name(za, index, flags)) == NULL) - return -1; + if ((name = zip_get_name(za, index, flags)) == NULL) { + return -1; + } + entry = za->entry + index; if ((flags & ZIP_FL_UNCHANGED) == 0 && ZIP_ENTRY_DATA_CHANGED(za->entry + index)) { - zip_entry_t *entry = za->entry+index; - - if (zip_source_stat(entry->source, st) < 0) { - zip_error_set(&za->error, ZIP_ER_CHANGED, 0); - return -1; - } - if (entry->changes->changed & ZIP_DIRENT_LAST_MOD) { - st->mtime = de->last_mod; - st->valid |= ZIP_STAT_MTIME; - } + if (zip_source_stat(entry->source, st) < 0) { + zip_error_set(&za->error, ZIP_ER_CHANGED, 0); + return -1; + } + + if (ZIP_CM_IS_DEFAULT(de->comp_method)) { + if (!(st->valid & ZIP_STAT_COMP_METHOD) || st->comp_method == ZIP_CM_STORE) { + st->valid &= ~(ZIP_STAT_COMP_SIZE|ZIP_STAT_COMP_METHOD); + } + } + else { + if ((st->valid & ZIP_STAT_COMP_METHOD) && st->comp_method != de->comp_method) { + st->valid &= ~ZIP_STAT_COMP_SIZE; + } + st->valid |= ZIP_STAT_COMP_METHOD; + st->comp_method = de->comp_method; + } + + if (((st->valid & (ZIP_STAT_COMP_METHOD|ZIP_STAT_SIZE)) == (ZIP_STAT_COMP_METHOD|ZIP_STAT_SIZE)) && st->comp_method == ZIP_CM_STORE) { + st->valid |= ZIP_STAT_COMP_SIZE; + st->comp_size = st->size; + } + + if (entry->changes != NULL && entry->changes->changed & ZIP_DIRENT_LAST_MOD) { + st->mtime = de->last_mod; + st->valid |= ZIP_STAT_MTIME; + } } else { - zip_stat_init(st); - - st->crc = de->crc; - st->size = de->uncomp_size; - st->mtime = de->last_mod; - st->comp_size = de->comp_size; - st->comp_method = (zip_uint16_t)de->comp_method; - st->encryption_method = de->encryption_method; - st->valid = (de->crc_valid ? ZIP_STAT_CRC : 0) | ZIP_STAT_SIZE | ZIP_STAT_MTIME | ZIP_STAT_COMP_SIZE | ZIP_STAT_COMP_METHOD | ZIP_STAT_ENCRYPTION_METHOD; + zip_stat_init(st); + + st->crc = de->crc; + st->size = de->uncomp_size; + st->mtime = de->last_mod; + st->comp_size = de->comp_size; + st->comp_method = (zip_uint16_t)de->comp_method; + st->encryption_method = de->encryption_method; + st->valid = (de->crc_valid ? ZIP_STAT_CRC : 0) | ZIP_STAT_SIZE | ZIP_STAT_MTIME | ZIP_STAT_COMP_SIZE | ZIP_STAT_COMP_METHOD | ZIP_STAT_ENCRYPTION_METHOD; + if (entry->changes != NULL && entry->changes->changed & ZIP_DIRENT_COMP_METHOD) { + st->valid &= ~ZIP_STAT_COMP_SIZE; + } + } + + if ((za->ch_flags & ZIP_AFL_WANT_TORRENTZIP) && (flags & ZIP_FL_UNCHANGED) == 0) { + st->comp_method = ZIP_CM_DEFLATE; + st->mtime = _zip_d2u_time(0xbc00, 0x2198); + st->valid |= ZIP_STAT_MTIME | ZIP_STAT_COMP_METHOD; + st->valid &= ~ZIP_STAT_COMP_SIZE; } st->index = index; |