add filehex util

Author: ryancdotorg

.gitignore

@@ -33,6 +33,7 @@ hexln
 hex2blf
 blfchk
 ecmtabgen
+filehex
 
 # Debug files
 *.dSYM/

Makefile

@@ -1,9 +1,9 @@
 HEADERS = bloom.h crack.h hash160.h warpwallet.h
-OBJ_MAIN = brainflayer.o hex2blf.o blfchk.o ecmtabgen.o hexln.o
+OBJ_MAIN = brainflayer.o hex2blf.o blfchk.o ecmtabgen.o hexln.o filehex.o
 OBJ_UTIL = hex.o bloom.o mmapf.o hsearchf.o ec_pubkey_fast.o ripemd160_256.o dldummy.o
 OBJ_ALGO = $(patsubst %.c,%.o,$(wildcard algo/*.c))
 OBJECTS = $(OBJ_MAIN) $(OBJ_UTIL) $(OBJ_ALGO)
-BINARIES = brainflayer hexln hex2blf blfchk ecmtabgen
+BINARIES = brainflayer hexln hex2blf blfchk ecmtabgen filehex
 LIBS = -lssl -lrt -lcrypto -lz -lgmp
 CFLAGS = -O3 \
          -flto -funsigned-char -falign-functions=16 -falign-loops=16 -falign-jumps=16 \
@@ -56,6 +56,9 @@ hex2blf: hex2blf.o hex.o bloom.o mmapf.o
 ecmtabgen: ecmtabgen.o mmapf.o ec_pubkey_fast.o
 	$(COMPILE) -static $^ $(LIBS) -o $@
 
+filehex: filehex.o hex.o
+	$(COMPILE) -static $^ $(LIBS) -o $@
+
 brainflayer: brainflayer.o $(OBJ_UTIL) $(OBJ_ALGO) \
              secp256k1/.libs/libsecp256k1.a scrypt-jane/scrypt-jane.o
 	$(COMPILE) -static $^ $(LIBS) -o $@

filehex.c

@@ -0,0 +1,49 @@
+/* Copyright (c) 2015 Ryan Castellucci, All Rights Reserved */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "hex.h"
+
+void filehex(FILE *ifile, const unsigned char *filename) {
+  unsigned char hexed[65];
+  unsigned char buf[65536];
+  size_t offset;
+  int r, i, buf_pos, i_max;
+
+  offset = buf_pos = 0;
+  while ((r = fread(buf + buf_pos, 1, 256, ifile)) > 0) {
+    i_max = r + buf_pos - 31;
+    for (i = 0; i < i_max; ++i, ++offset) {
+      printf("%s:%s,%zu\n", hex(buf+i, 32, hexed, 65), filename, offset);
+    }
+    memcpy(buf, buf+i, buf_pos = 31);
+  }
+}
+
+int main(int argc, char **argv) {
+  int i;
+  FILE *ifile;
+
+  /*
+  if (argc > 1) {
+    fprintf(stderr, "Usage: %s\n", argv[0]);
+    return 1;
+  }*/
+
+  if (argc == 1) {
+    filehex(stdin, "STDIN");
+  } else {
+    for (i = 1; i < argc; ++i) {
+      if ((ifile = fopen(argv[i], "r")) != NULL) {
+        filehex(ifile, argv[i]);
+        fclose(ifile);
+      }
+    }
+  }
+
+  return 0;
+}
+
+/*  vim: set ts=2 sw=2 et ai si: */