1 files changed, 30 insertions, 0 deletions
diff --git a/crypto_scrypt-hexconvert.c b/crypto_scrypt-hexconvert.c
new file mode 100644
index 0000000..ececbd9
--- /dev/null
+++ b/crypto_scrypt-hexconvert.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+
+int libscrypt_hexconvert(uint8_t *buf, size_t s, char *outbuf, size_t obs)
+{
+
+        size_t i;
+	int len = 0;
+
+        if (!buf || s < 1 || obs < (s * 2 + 1))
+                return 0;
+
+        memset(outbuf, 0, obs);
+	
+
+        for(i=0; i<=(s-1); i++)
+        {
+		/* snprintf(outbuf, s,"%s...", outbuf....) has undefined results
+		* and can't be used. Using offests like this makes snprintf
+		* nontrivial. we therefore have use inescure sprintf() and
+		* lengths checked elsewhere (start of function) */
+		/*@ -bufferoverflowhigh @*/ 
+                len += sprintf(outbuf+len, "%02x", (unsigned int) buf[i]);
+        }
+
+	return 1;
+}
+