ipkg - free some memory by removing temporary control & data archives after processing

The control and data archives can be removed after processing and
gain some memory for another use of the ramdisk or for ipkg needs.

Signed-off-by: Lubos Stanek (lubek) <lubek@lubek.name>

SVN-Revision: 10246

busybox/patches/525-clean_temp.patch

@@ -0,0 +1,35 @@
+diff -urN busybox-1.8.2.old/archival/libipkg/pkg_extract.c busybox-1.8.2.dev/archival/libipkg/pkg_extract.c
+--- busybox-1.8.2.old/archival/libipkg/pkg_extract.c	2008-01-23 22:18:44.000000000 +0100
++++ busybox-1.8.2.dev/archival/libipkg/pkg_extract.c	2008-01-23 22:20:31.000000000 +0100
+@@ -85,6 +85,7 @@
+ 	free(archive->buffer);
+ 	free(archive->accept);
+ 	free(archive);
++	unlink(name);
+ 	free(name);
+ 
+ 	return 0;
+@@ -114,6 +115,7 @@
+ 	close(archive->src_fd);
+ 	free(archive);
+ 	free(path);
++	unlink(name);
+ 	free(name);
+ 
+ 	return 0;
+@@ -138,6 +140,7 @@
+ 	close(archive->src_fd);
+ 	free(archive);
+ 	free(path);
++	unlink(name);
+ 	free(name);
+ 
+ 	return 0;
+@@ -218,6 +221,7 @@
+ 	fputs(archive->buffer, file);
+ 	free(archive->buffer);
+ 	free(archive);
++	unlink(name);
+ 	free(name);
+ 	
+ 	return 0;