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-rw-r--r--packages/shasum/files/main.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/packages/shasum/files/main.c b/packages/shasum/files/main.c
new file mode 100644
index 0000000000..0748a94f3a
--- /dev/null
+++ b/packages/shasum/files/main.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mhash_sha256.h"
+
+/*
+ * from driver.c of mhash
+ */
+static const char hexconvtab[] = "0123456789abcdef";
+
+static char *
+bin2hex(const unsigned char *old, const size_t oldlen, size_t * newlen)
+{
+ unsigned char *new = NULL;
+ int i, j;
+
+ new = (char *) malloc(oldlen * 2 * sizeof(char) + 1);
+ if (!new)
+ return (new);
+
+ for (i = j = 0; i < oldlen; i++) {
+ new[j++] = hexconvtab[old[i] >> 4];
+ new[j++] = hexconvtab[old[i] & 15];
+ }
+ new[j] = '\0';
+
+ if (newlen)
+ *newlen = oldlen * 2 * sizeof(char);
+
+ return (new);
+}
+
+
+int main(int argc, char** argv)
+{
+ FILE *file;
+ size_t n;
+ SHA256_CTX ctx;
+ unsigned char buf[1024];
+ byte output[33];
+
+ if ( argc <= 1 ) {
+ return EXIT_FAILURE;
+ }
+
+ if ( (file=fopen(argv[1], "rb")) == NULL ) {
+ return EXIT_FAILURE;
+ }
+
+ sha256_init(&ctx);
+
+ while ( (n=fread( buf, 1, sizeof(buf), file)) > 0 )
+ sha256_update(&ctx, buf, n );
+
+ sha256_final(&ctx);
+ sha256_digest(&ctx, output);
+
+ printf("%s ?%s\n", bin2hex(output, 32, &n), argv[1]);
+ return EXIT_SUCCESS;
+}