Index: kpw.d/kpw.c
==================================================================
--- kpw.d/kpw.c
+++ kpw.d/kpw.c
@@ -6,10 +6,15 @@
  *    - D_CLIPBOARD enables kpw to automatically
  *      copy passwords to the clipboard. it does
  *      this by attempting to execute a sequence
  *      of binaries, and then writing the password
  *      to STDIN of the binary that succeeds.
+ *    - D_SAVEKEY enables kpw to store the database
+ *      key in persistent memory between invocations,
+ *      leading to quicker decryption and access
+ *      times. only available on systems with SYSV
+ *      shared memory.
  *  ? generates passwords
  *  → kpw is unlikely to be portable to non-POSIX
  *    systems, but should run fine on Linux as well
  *    as BSDs with getrandom() support.
  *  → kpw has the following dependencies:
@@ -809,11 +814,11 @@
 
 				bad d;
 				if((d = dbnext(db, &rec, ctlen,
 					pub, priv, ctbuf, ptbuf)) != ok) return d;
 
-				if(strncmp(target, rec.acct.ptr, rec.acct.len) == 0) {
+				if(strlen(target) == rec.acct.len && strncmp(target, rec.acct.ptr, rec.acct.len) == 0) {
 					/* found a matching record; determine
 					 * what to do to the fucker */
 					alert(a_debug, "found target record");
 					found = true;
 					if (op == delpw) continue;

Index: makerules
==================================================================
--- makerules
+++ makerules
@@ -19,14 +19,10 @@
 sc-post = $(post)
 mc-post = $(post)
 
 os = $(shell uname -o)
 
-ifeq ($(os),Android)
-    l-shmem = -landroid-shmem
-endif
-
 %: %.c
 	$(cc) $< -o$@ $(cc-post)
 
 %: %.ml
 	$(mc) $< -o $@ $(mc-post)