started test client

[reposerve] / src / md5.h

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+/* MD5 message digest
+ * Author: John Tsiombikas <nuclear@member.fsf.org>
+ *
+ * This software is public domain. Feel free to use it any way you like.
+ *
+ * If public domain is not applicable in your part of the world, you may use
+ * this under the terms of the Creative Commons CC-0 license:
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ *
+ *
+ * usage example 1: compute the md5 sum of the string "hello world"
+ *
+ *    struct md5_state md;
+ *    md5_begin(&md);
+ *    md5_msg(&md, "hello world", 11);
+ *    md5_end(&md);
+ *
+ * md5 sum in: md5_state.sum[0..4]
+ * To print it you may use the helper function md5_sumstr:
+ *    printf("%s\n", md5_sumstr(&md));
+ *
+ * usage example 2: comput the md5 sum of whatever comes through stdin
+ *
+ *     int sz;
+ *     struct md5_state md;
+ *     char buf[1024];
+ *
+ *     md5_begin(&md);
+ *     while((sz = fread(buf, 1, sizeof buf, stdin)) > 0) {
+ *         md5_msg(&md, buf, sz);
+ *     }
+ *     md5_end(&md);
+ */
+#ifndef NUCLEAR_DROPCODE_MD5_H_
+#define NUCLEAR_DROPCODE_MD5_H_
+
+#include <stdint.h>
+
+struct md5_state {
+       uint32_t sum[4];
+       uint64_t len;
+       unsigned char blockbuf[64];
+       int bblen;
+};
+
+void md5_begin(struct md5_state *md);
+void md5_msg(struct md5_state *md, void *msg, int msg_size);
+void md5_end(struct md5_state *md);
+
+/* after computing the md5 sum, you may use this function to get a pointer
+ * to a canonical string representation of the sum (identical to GNU md5sum)
+ */
+const char *md5_sumstr(struct md5_state *md);
+
+#endif /* NUCLEAR_DROPCODE_MD5_H_ */