add "export -n" to ash

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5615 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/busybox/patches/250-ash_export-n.patch b/package/busybox/patches/250-ash_export-n.patch
new file mode 100644 (file)
index 0000000..9823afe
--- /dev/null
+++ b/package/busybox/patches/250-ash_export-n.patch
@@ -0,0 +1,35 @@
+--- busybox.old/shell/ash.c    2006-11-22 12:02:03.000000000 -0800
++++ busybox.dev/shell/ash.c    2006-11-22 11:05:32.000000000 -0800
+@@ -12257,9 +12257,18 @@
+       const char *p;
+       char **aptr;
+       int flag = argv[0][0] == 'r'? VREADONLY : VEXPORT;
++      int mask = ~0;
+       int notp;
+ 
+-      notp = nextopt("p") - 'p';
++      while ((notp = nextopt("np"))) {
++              if (notp == 'n') {
++                              mask = ~flag;
++              } else { /* p */
++                      break;
++              }
++      }
++
++      notp -= 'p';
+       if (notp && ((name = *(aptr = argptr)))) {
+               do {
+                       if ((p = strchr(name, '=')) != NULL) {
+@@ -12267,10 +12276,11 @@
+                       } else {
+                               if ((vp = *findvar(hashvar(name), name))) {
+                                       vp->flags |= flag;
++                                      vp->flags &= mask;
+                                       continue;
+                               }
+                       }
+-                      setvar(name, p, flag);
++                      setvar(name, p, flag & mask);
+               } while ((name = *++aptr) != NULL);
+       } else {
+               showvars(argv[0], flag, 0);