add: execute openssl fetcher to fetch openssl 1.0.1j

[cassiopeia.git] / lib / openssl / crypto / comp / c_rle.c

diff --git a/lib/openssl/crypto/comp/c_rle.c b/lib/openssl/crypto/comp/c_rle.c
new file mode 100644 (file)
index 0000000..47dfb67
--- /dev/null
+++ b/lib/openssl/crypto/comp/c_rle.c
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <openssl/objects.h>
+#include <openssl/comp.h>
+
+static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
+       unsigned int olen, unsigned char *in, unsigned int ilen);
+static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
+       unsigned int olen, unsigned char *in, unsigned int ilen);
+
+static COMP_METHOD rle_method={
+       NID_rle_compression,
+       LN_rle_compression,
+       NULL,
+       NULL,
+       rle_compress_block,
+       rle_expand_block,
+       NULL,
+       NULL,
+       };
+
+COMP_METHOD *COMP_rle(void)
+       {
+       return(&rle_method);
+       }
+
+static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
+            unsigned int olen, unsigned char *in, unsigned int ilen)
+       {
+       /* int i; */
+
+       if (ilen == 0 || olen < (ilen-1))
+               {
+               /* ZZZZZZZZZZZZZZZZZZZZZZ */
+               return(-1);
+               }
+
+       *(out++)=0;
+       memcpy(out,in,ilen);
+       return(ilen+1);
+       }
+
+static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
+            unsigned int olen, unsigned char *in, unsigned int ilen)
+       {
+       int i;
+
+       if (olen < (ilen-1))
+               {
+               /* ZZZZZZZZZZZZZZZZZZZZZZ */
+               return(-1);
+               }
+
+       i= *(in++);
+       if (i == 0)
+               {
+               memcpy(out,in,ilen-1);
+               }
+       return(ilen-1);
+       }