rbutil: Merge rbutil with utils folder.

rbutil uses several components from the utils folder, and can be
considered part of utils too. Having it in a separate folder is an
arbitrary split that doesn't help anymore these days, so merge them.

This also allows other utils to easily use libtools.make without the
need to navigate to a different folder.

Change-Id: I3fc2f4de19e3e776553efb5dea5f779dfec0dc21

utils/tools/bin2c.c

@@ -0,0 +1,174 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2007 Dave Chapman
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#if !defined(_MSC_VER)
+#include <unistd.h>
+#else
+#include <io.h>
+#define snprintf _snprintf
+#define open _open
+#define close _close
+#define read _read
+#endif
+#include <libgen.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+static void usage(void)
+{
+    fprintf(stderr, "bin2c [options] infile cfile\n");
+    fprintf(stderr, "       -i    ipod mode\n");
+}
+
+
+static off_t filesize(int fd)
+{
+    struct stat buf;
+
+    fstat(fd,&buf);
+    return buf.st_size;
+}
+
+static int write_cfile(const unsigned char* buf, off_t len, const char* cname)
+{
+    char filename[256];
+    char filebase[256];
+    char* bn;
+    FILE* fp;
+    int i;
+
+    snprintf(filename,256,"%s.c",cname);
+    strncpy(filebase, cname, 256);
+    bn = basename(filebase);
+
+    fp = fopen(filename,"w+");
+    if (fp == NULL) {
+        fprintf(stderr,"Couldn't open %s\n",filename);
+        return -1;
+    }
+
+    fprintf(fp,"/* Generated by bin2c */\n\n");
+    fprintf(fp,"unsigned char %s[] = {",bn);
+
+    for (i=0;i<len;i++) {
+        if ((i % 16) == 0) {
+           fprintf(fp,"\n    ");
+        }
+        if (i == (len-1)) {
+            fprintf(fp,"0x%02x",buf[i]);
+        } else {
+            fprintf(fp,"0x%02x, ",buf[i]);
+        }
+    }
+    fprintf(fp,"\n};\n");
+
+    fclose(fp);
+    return 0;
+}
+
+static int write_hfile(off_t len, const char* cname)
+{
+    char filename[256];
+    char filebase[256];
+    char* bn;
+    FILE* fp;
+
+    snprintf(filename,256,"%s.h",cname);
+    strncpy(filebase, cname, 256);
+    bn = basename(filebase);
+    fp = fopen(filename,"w+");
+    if (fp == NULL) {
+        fprintf(stderr,"Couldn't open %s\n",filename);
+        return -1;
+    }
+
+    fprintf(fp,"/* Generated by bin2c */\n\n");
+    fprintf(fp,"#define LEN_%s %d\n",bn,(int)len);
+    fprintf(fp,"extern unsigned char %s[];\n",bn);
+    fclose(fp);
+    return 0;
+}
+
+int main (int argc, char* argv[])
+{
+    char* infile;
+    char* cname;
+    int fd;
+    unsigned char* buf;
+    int len;
+    int n;
+    int skip = 0;
+    int opts = 0;
+
+
+    if(argc < 2) {
+        usage();
+        return 0;
+    }
+    if(strcmp(argv[1], "-i") == 0) {
+        skip = 8;
+        opts++;
+    }
+    if (argc < opts + 3) {
+        usage();
+        return 0;
+    }
+
+    infile=argv[opts + 1];
+    cname=argv[opts + 2];
+
+    fd = open(infile,O_RDONLY|O_BINARY);
+    if (fd < 0) {
+        fprintf(stderr,"Can not open %s\n",infile);
+        return 0;
+    }
+
+    len = filesize(fd) - skip;
+    n = lseek(fd, skip, SEEK_SET);
+    if (n != skip) {
+        fprintf(stderr,"Seek failed\n");
+        return 0;
+    }
+
+    buf = malloc(len);
+    n = read(fd,buf,len);
+    if (n < len) {
+        fprintf(stderr,"Short read, aborting\n");
+        return 0;
+    }
+    close(fd);
+
+    if (write_cfile(buf,len,cname) < 0) {
+        return -1;
+    }
+    if (write_hfile(len,cname) < 0) {
+        return -1;
+    }
+
+    return 0;
+}