I guess I can just put this up. Most of these have been sitting here forever.

ckmextract.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <libgen.h>
+#include <string.h>
+
+int main( int argc, char **argv )
+{
+        if ( argc < 2 ) return 1;
+        FILE *ckm = fopen(argv[1],"rb");
+        char *ckmfil = basename(argv[1]);
+        char bsafil[256];
+        char espfil[256];
+        strcpy(bsafil,ckmfil);
+        strcpy(espfil,ckmfil);
+        strcpy(strchr(bsafil,'.'),".bsa");
+        strcpy(strchr(espfil,'.'),".esp");
+        int siz;
+        fread(&siz,1,4,ckm);
+        FILE *bsa = fopen(bsafil,"wb");
+        while ( (siz > 0) )
+        {
+                char buf[8192];
+                int rd = fread(buf,1,(siz>8192)?8192:siz,ckm);
+                fwrite(buf,1,rd,bsa);
+                siz -= rd;
+        }
+        fclose(bsa);
+        fread(&siz,1,4,ckm);
+        FILE *esp = fopen(espfil,"wb");
+        while ( !feof(ckm) )
+        {
+                char buf[8192];
+                int rd = fread(buf,1,8192,ckm);
+                fwrite(buf,1,rd,esp);
+        }
+        fclose(esp);
+        return 0;
+}