1 files changed, 157 insertions, 0 deletions

diff --git a/utils/sansapatcher/sansaio-posix.c b/utils/sansapatcher/sansaio-posix.c
new file mode 100644
index 0000000000..44c4dcc95c
--- /dev/null
+++ b/utils/sansapatcher/sansaio-posix.c
@@ -0,0 +1,157 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006-2007 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.
+ *
+ ****************************************************************************/
+
+#if !defined(_WIN32) /* all non-Windows platforms supported are POSIX. */
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#if defined(linux) || defined (__linux)
+#include <sys/mount.h>
+#define SANSA_SECTORSIZE_IOCTL BLKSSZGET
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \
+      || defined(__bsdi__) || defined(__DragonFly__)
+#include <sys/disk.h>
+#define SANSA_SECTORSIZE_IOCTL DIOCGSECTORSIZE
+#elif defined(__APPLE__) && defined(__MACH__)
+#include <sys/disk.h>
+#define SANSA_SECTORSIZE_IOCTL DKIOCGETBLOCKSIZE
+#else
+    #error No sector-size detection implemented for this platform
+#endif
+
+#include "sansaio.h"
+
+#if defined(__APPLE__) && defined(__MACH__)
+static int sansa_unmount(struct sansa_t* sansa)
+{
+    char cmd[4096];
+    int res;
+
+    sprintf(cmd, "/usr/sbin/diskutil unmount \"%ss1\"",sansa->diskname);
+    fprintf(stderr,"[INFO] ");
+    res = system(cmd);
+
+    if (res==0) {
+        return 0;
+    } else {
+        perror("Unmount failed");
+        return -1;
+    }
+}
+#endif
+
+
+void sansa_print_error(char* msg)
+{
+    perror(msg);
+}
+
+int sansa_open(struct sansa_t* sansa, int silent)
+{
+    sansa->dh=open(sansa->diskname,O_RDONLY);
+    if (sansa->dh < 0) {
+        if (!silent) perror(sansa->diskname);
+        if(errno == EACCES) return -2;
+        else return -1;
+    }
+
+    if(ioctl(sansa->dh,SANSA_SECTORSIZE_IOCTL,&sansa->sector_size) < 0) {
+        sansa->sector_size=512;
+        if (!silent) {
+            fprintf(stderr,"[ERR] ioctl() call to get sector size failed, defaulting to %d\n"
+                   ,sansa->sector_size);
+        }
+    }
+    return 0;
+}
+
+
+int sansa_reopen_rw(struct sansa_t* sansa)
+{
+#if defined(__APPLE__) && defined(__MACH__)
+    if (sansa_unmount(sansa) < 0)
+        return -1;
+#endif
+
+    close(sansa->dh);
+    sansa->dh=open(sansa->diskname,O_RDWR);
+    if (sansa->dh < 0) {
+        perror(sansa->diskname);
+        return -1;
+    }
+    return 0;
+}
+
+int sansa_close(struct sansa_t* sansa)
+{
+    close(sansa->dh);
+    return 0;
+}
+
+int sansa_alloc_buffer(struct sansa_t *sansa, int bufsize)
+{
+    sansa->sectorbuf=malloc(bufsize);
+    if (sansa->sectorbuf == NULL) {
+        return -1;
+    }
+    return 0;
+}
+
+int sansa_dealloc_buffer(struct sansa_t* sansa)
+{
+    if (sansa->sectorbuf == NULL) {
+        return -1;
+    }
+    free(sansa->sectorbuf);
+    sansa->sectorbuf = NULL;
+    return 0;
+}
+
+int sansa_seek(struct sansa_t* sansa, loff_t pos)
+{
+    off_t res;
+
+    res = lseek64(sansa->dh, pos, SEEK_SET);
+
+    if (res == -1) {
+       return -1;
+    }
+    return 0;
+}
+
+int sansa_read(struct sansa_t* sansa, unsigned char* buf, int nbytes)
+{
+    return read(sansa->dh, buf, nbytes);
+}
+
+int sansa_write(struct sansa_t* sansa, int nbytes)
+{
+    return write(sansa->dh, sansa->sectorbuf, nbytes);
+}
+#endif
+