Clean compile

include/arc4.c

@@ -52,19 +52,6 @@ arc4_crypt_buffer(const uint8_t *key, size_t keylen,
   arc4_crypt(&ctx, buf, buf, buflen);
 }
 
-void
-arc4_hash(uint8_t const *buf, size_t buflen,
-          uint8_t *hash)
-{
-  struct arc4_ctx ctx;
-  int             i;
-
-  arc4_init(&ctx, buf, buflen);
-  for (i = 0; i < ARC4_HASHLEN; i += 1) {
-    hash[i] = arc4_out(&ctx);
-  }
-}
-
 
 #ifdef ARC4_MAIN
 

include/arc4.h

@@ -4,8 +4,6 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#define ARC4_HASHLEN 16
-
 struct arc4_ctx {
   uint8_t S[256];
   uint8_t i;

include/token.c

@@ -12,6 +12,74 @@
 #define CTF_BASE "/var/lib/ctf"
 #endif
 
+/*
+ *
+ * ARC-4 stuff
+ *
+ */
+
+struct arc4_ctx {
+  uint8_t S[256];
+  uint8_t i;
+  uint8_t j;
+};
+
+#define swap(a, b) do {int _swap=a; a=b, b=_swap;} while (0)
+
+void
+arc4_init(struct arc4_ctx *ctx, uint8_t const *key, size_t keylen)
+{
+  int i;
+  int j = 0;
+
+  for (i = 0; i < 256; i += 1) {
+    ctx->S[i] = i;
+  }
+
+  for (i = 0; i < 256; i += 1) {
+    j = (j + ctx->S[i] + key[i % keylen]) % 256;
+    swap(ctx->S[i], ctx->S[j]);
+  }
+  ctx->i = 0;
+  ctx->j = 0;
+}
+
+uint8_t
+arc4_out(struct arc4_ctx *ctx)
+{
+  ctx->i = (ctx->i + 1) % 256;
+  ctx->j = (ctx->j + ctx->S[ctx->i]) % 256;
+  swap(ctx->S[ctx->i], ctx->S[ctx->j]);
+  return ctx->S[(ctx->S[ctx->i] + ctx->S[ctx->j]) % 256];
+}
+
+void
+arc4_crypt(struct arc4_ctx *ctx,
+           uint8_t *obuf, const uint8_t *ibuf, size_t buflen)
+{
+  size_t k;
+
+  for (k = 0; k < buflen; k += 1) {
+    obuf[k] = ibuf[k] ^ arc4_out(ctx);
+  }
+}
+
+void
+arc4_crypt_buffer(const uint8_t *key, size_t keylen,
+                  uint8_t *buf, size_t buflen)
+{
+  struct arc4_ctx ctx;
+
+  arc4_init(&ctx, key, keylen);
+  arc4_crypt(&ctx, buf, buf, buflen);
+}
+
+/*
+ *
+ */
+
+
+
 ssize_t
 read_token_fd(int fd,
               uint8_t const *key, size_t keylen,

packages/ctfbase/ctfbase.mk

@@ -5,8 +5,6 @@ ctfbase-install: ctfbase-build
 
 	$(call COPYTREE, packages/ctfbase/service, $(CTFBASE_PKGDIR)/service)
 
-	cp packages/ctfbase/setup $(CTFBASE_PKGDIR)/
-
 	cp packages/ctfbase/src/tokencli $(CTFBASE_PKGDIR)/bin/
 	cp packages/ctfbase/src/arc4 $(CTFBASE_PKGDIR)/bin/
 

packages/logger/src/logger.c

@@ -28,7 +28,6 @@
 #  define TOKEN_MAX 50
 #else
 #  include "token.h"
-#  include "arc4.h"
 #endif
 
 #define PID_MAX 32768

packages/mcp/mcp.mk

@@ -6,9 +6,7 @@ mcp-install: mcp-build
 	$(call COPYTREE, packages/mcp/bin, $(MCP_PKGDIR)/bin)
 	cp packages/mcp/src/in.tokend $(MCP_PKGDIR)/bin/
 	cp packages/mcp/src/pointscli $(MCP_PKGDIR)/bin/
-	cp packages/mcp/src/tokencli $(MCP_PKGDIR)/bin/
 	cp packages/mcp/src/puzzles.cgi $(MCP_PKGDIR)/bin/
-	cp packages/mcp/src/arc4 $(MCP_PKGDIR)/bin/
 
 	$(call COPYTREE, packages/mcp/service, $(MCP_PKGDIR)/service)
 

packages/octopus/src/octopus.c

@@ -195,12 +195,12 @@ struct bound_port {
 
 int
 bind_port(struct in_addr *addr, int fd, uint16_t port) {
-  struct sockaddr_in addr;
+  struct sockaddr_in saddr;
 
-  addr.sin_family = AF_INET;
+  saddr.sin_family = AF_INET;
-  addr.sin_port = htons(port);
+  saddr.sin_port = htons(port);
-  addr.sin_addr.s_addr = *addr;
+  memcpy(&saddr.sin_addr.s_addr, addr, sizeof(struct in_addr));
-  return bind(fd, (struct sockaddr *)&addr, sizeof(addr));
+  return bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
 }
 
 int
@@ -351,7 +351,7 @@ main(int argc, char *argv[])
       return EX_IOERR;
     }
   } else {
-    addr = INADDR_ANY;
+    addr.s_addr = INADDR_ANY;
   }
 
   bound_ports[0].fd = socket(PF_INET, SOCK_DGRAM, 0);