diff options
Diffstat (limited to 'libarchive/archive_read_support_format_tar.c')
| -rw-r--r-- | libarchive/archive_read_support_format_tar.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/libarchive/archive_read_support_format_tar.c b/libarchive/archive_read_support_format_tar.c index bd7f13d52eeb..30d5bc83c321 100644 --- a/libarchive/archive_read_support_format_tar.c +++ b/libarchive/archive_read_support_format_tar.c @@ -155,6 +155,7 @@ struct tar { int compat_2x; int process_mac_extensions; int read_concatenated_archives; + int realsize_override; }; static int archive_block_is_null(const char *p); @@ -527,6 +528,7 @@ archive_read_format_tar_read_header(struct archive_read *a, tar->entry_offset = 0; gnu_clear_sparse_list(tar); tar->realsize = -1; /* Mark this as "unset" */ + tar->realsize_override = 0; /* Setup default string conversion. */ tar->sconv = tar->opt_sconv; @@ -1894,6 +1896,7 @@ pax_attribute(struct archive_read *a, struct tar *tar, if (strcmp(key, "GNU.sparse.size") == 0) { tar->realsize = tar_atol10(value, strlen(value)); archive_entry_set_size(entry, tar->realsize); + tar->realsize_override = 1; } /* GNU "0.1" sparse pax format. */ @@ -1925,6 +1928,7 @@ pax_attribute(struct archive_read *a, struct tar *tar, if (strcmp(key, "GNU.sparse.realsize") == 0) { tar->realsize = tar_atol10(value, strlen(value)); archive_entry_set_size(entry, tar->realsize); + tar->realsize_override = 1; } break; case 'L': @@ -1977,6 +1981,7 @@ pax_attribute(struct archive_read *a, struct tar *tar, tar_atol10(value, strlen(value))); } else if (strcmp(key, "SCHILY.realsize") == 0) { tar->realsize = tar_atol10(value, strlen(value)); + tar->realsize_override = 1; archive_entry_set_size(entry, tar->realsize); } else if (strncmp(key, "SCHILY.xattr.", 13) == 0) { pax_attribute_schily_xattr(entry, key, value, @@ -2055,14 +2060,12 @@ pax_attribute(struct archive_read *a, struct tar *tar, tar->entry_bytes_remaining = tar_atol10(value, strlen(value)); /* - * But, "size" is not necessarily the size of - * the file on disk; if this is a sparse file, - * the disk size may have already been set from - * GNU.sparse.realsize or GNU.sparse.size or - * an old GNU header field or SCHILY.realsize - * or .... + * The "size" pax header keyword always overrides the + * "size" field in the tar header. + * GNU.sparse.realsize, GNU.sparse.size and + * SCHILY.realsize override this value. */ - if (tar->realsize < 0) { + if (!tar->realsize_override) { archive_entry_set_size(entry, tar->entry_bytes_remaining); tar->realsize @@ -2206,6 +2209,7 @@ header_gnutar(struct archive_read *a, struct tar *tar, tar->realsize = tar_atol(header->realsize, sizeof(header->realsize)); archive_entry_set_size(entry, tar->realsize); + tar->realsize_override = 1; } if (header->sparse[0].offset[0] != 0) { |