less: document -S flag and make it independently configurable

[oweals/busybox.git] / archival / libarchive / data_extract_all.c

diff --git a/archival/libarchive/data_extract_all.c b/archival/libarchive/data_extract_all.c
index 3f67b835fe8fef01f66a2c9381fb35826f72b74a..45776dcbe9daa3c5d97430f5d337949d489f9e31 100644 (file)
--- a/archival/libarchive/data_extract_all.c
+++ b/archival/libarchive/data_extract_all.c
@@ -106,15 +106,28 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
        switch (file_header->mode & S_IFMT) {
        case S_IFREG: {
                /* Regular file */
+               char *dst_name;
                int flags = O_WRONLY | O_CREAT | O_EXCL;
                if (archive_handle->ah_flags & ARCHIVE_O_TRUNC)
                        flags = O_WRONLY | O_CREAT | O_TRUNC;
-               dst_fd = xopen3(file_header->name,
+               dst_name = file_header->name;
+#ifdef ARCHIVE_REPLACE_VIA_RENAME
+               if (archive_handle->ah_flags & ARCHIVE_REPLACE_VIA_RENAME)
+                       /* rpm-style temp file name */
+                       dst_name = xasprintf("%s;%x", dst_name, (int)getpid());
+#endif
+               dst_fd = xopen3(dst_name,
                        flags,
                        file_header->mode
                        );
                bb_copyfd_exact_size(archive_handle->src_fd, dst_fd, file_header->size);
                close(dst_fd);
+#ifdef ARCHIVE_REPLACE_VIA_RENAME
+               if (archive_handle->ah_flags & ARCHIVE_REPLACE_VIA_RENAME) {
+                       xrename(dst_name, file_header->name);
+                       free(dst_name);
+               }
+#endif
                break;
        }
        case S_IFDIR: