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path: root/archival/libarchive/get_header_tar.c
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Diffstat (limited to 'archival/libarchive/get_header_tar.c')
-rw-r--r--archival/libarchive/get_header_tar.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/archival/libarchive/get_header_tar.c b/archival/libarchive/get_header_tar.c
index ac2be72..ea91a88 100644
--- a/archival/libarchive/get_header_tar.c
+++ b/archival/libarchive/get_header_tar.c
@@ -60,13 +60,21 @@ static unsigned long long getOctal(char *str, int len)
}
#define GET_OCTAL(a) getOctal((a), sizeof(a))
+#define TAR_EXTD (ENABLE_FEATURE_TAR_GNU_EXTENSIONS || ENABLE_FEATURE_TAR_SELINUX)
+#if !TAR_EXTD
+#define process_pax_hdr(archive_handle, sz, global) \
+ process_pax_hdr(archive_handle, sz)
+#endif
/* "global" is 0 or 1 */
static void process_pax_hdr(archive_handle_t *archive_handle, unsigned sz, int global)
{
+#if !TAR_EXTD
+ unsigned blk_sz = (sz + 511) & (~511);
+ seek_by_read(archive_handle->src_fd, blk_sz);
+#else
+ unsigned blk_sz = (sz + 511) & (~511);
char *buf, *p;
- unsigned blk_sz;
- blk_sz = (sz + 511) & (~511);
p = buf = xmalloc(blk_sz + 1);
xread(archive_handle->src_fd, buf, blk_sz);
archive_handle->offset += blk_sz;
@@ -104,30 +112,31 @@ static void process_pax_hdr(archive_handle_t *archive_handle, unsigned sz, int g
p[-1] = '\0';
value = end + 1;
-#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+# if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
if (!global && is_prefixed_with(value, "path=")) {
value += sizeof("path=") - 1;
free(archive_handle->tar__longname);
archive_handle->tar__longname = xstrdup(value);
continue;
}
-#endif
+# endif
-#if ENABLE_FEATURE_TAR_SELINUX
+# if ENABLE_FEATURE_TAR_SELINUX
/* Scan for SELinux contexts, via "RHT.security.selinux" keyword.
* This is what Red Hat's patched version of tar uses.
*/
-# define SELINUX_CONTEXT_KEYWORD "RHT.security.selinux"
+# define SELINUX_CONTEXT_KEYWORD "RHT.security.selinux"
if (is_prefixed_with(value, SELINUX_CONTEXT_KEYWORD"=")) {
value += sizeof(SELINUX_CONTEXT_KEYWORD"=") - 1;
free(archive_handle->tar__sctx[global]);
archive_handle->tar__sctx[global] = xstrdup(value);
continue;
}
-#endif
+# endif
}
free(buf);
+#endif
}
char FAST_FUNC get_header_tar(archive_handle_t *archive_handle)