6 files changed, 8 insertions, 964 deletions

diff --git a/mtdutils/mounts.h b/mounts.h
index d721355b8..1b7670329 100644
--- a/mtdutils/mounts.h
+++ b/mounts.h
@@ -14,28 +14,19 @@
  * limitations under the License.
  */
 
-#ifndef MTDUTILS_MOUNTS_H_
-#define MTDUTILS_MOUNTS_H_
+#ifndef MOUNTS_H_
+#define MOUNTS_H_
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct MountedVolume MountedVolume;
+struct MountedVolume;
 
-int scan_mounted_volumes(void);
+bool scan_mounted_volumes();
 
-const MountedVolume *find_mounted_volume_by_device(const char *device);
+MountedVolume* find_mounted_volume_by_device(const char* device);
 
-const MountedVolume *
-find_mounted_volume_by_mount_point(const char *mount_point);
+MountedVolume* find_mounted_volume_by_mount_point(const char* mount_point);
 
-int unmount_mounted_volume(const MountedVolume *volume);
+int unmount_mounted_volume(MountedVolume* volume);
 
-int remount_read_only(const MountedVolume* volume);
+int remount_read_only(MountedVolume* volume);
 
-#ifdef __cplusplus
-}
 #endif
-
-#endif  // MTDUTILS_MOUNTS_H_
diff --git a/mtdutils/Android.mk b/mtdutils/Android.mk
deleted file mode 100644
index b7d35c27a..000000000
--- a/mtdutils/Android.mk
+++ /dev/null
@@ -1,20 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-	mtdutils.c \
-	mounts.c
-
-LOCAL_MODULE := libmtdutils
-LOCAL_CLANG := true
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_CLANG := true
-LOCAL_SRC_FILES := flash_image.c
-LOCAL_MODULE := flash_image
-LOCAL_MODULE_TAGS := eng
-LOCAL_STATIC_LIBRARIES := libmtdutils
-LOCAL_SHARED_LIBRARIES := libcutils liblog libc
-include $(BUILD_EXECUTABLE)
diff --git a/mtdutils/flash_image.c b/mtdutils/flash_image.c
deleted file mode 100644
index 36ffa1314..000000000
--- a/mtdutils/flash_image.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "cutils/log.h"
-#include "mtdutils.h"
-
-#ifdef LOG_TAG
-#undef LOG_TAG
-#endif
-#define LOG_TAG "flash_image"
-
-#define HEADER_SIZE 2048  // size of header to compare for equality
-
-void die(const char *msg, ...) {
-    int err = errno;
-    va_list args;
-    va_start(args, msg);
-    char buf[1024];
-    vsnprintf(buf, sizeof(buf), msg, args);
-    va_end(args);
-
-    if (err != 0) {
-        strlcat(buf, ": ", sizeof(buf));
-        strlcat(buf, strerror(err), sizeof(buf));
-    }
-
-    fprintf(stderr, "%s\n", buf);
-    ALOGE("%s\n", buf);
-    exit(1);
-}
-
-/* Read an image file and write it to a flash partition. */
-
-int main(int argc, char **argv) {
-    const MtdPartition *ptn;
-    MtdWriteContext *write;
-    void *data;
-    unsigned sz;
-
-    if (argc != 3) {
-        fprintf(stderr, "usage: %s partition file.img\n", argv[0]);
-        return 2;
-    }
-
-    if (mtd_scan_partitions() <= 0) die("error scanning partitions");
-    const MtdPartition *partition = mtd_find_partition_by_name(argv[1]);
-    if (partition == NULL) die("can't find %s partition", argv[1]);
-
-    // If the first part of the file matches the partition, skip writing
-
-    int fd = open(argv[2], O_RDONLY);
-    if (fd < 0) die("error opening %s", argv[2]);
-
-    char header[HEADER_SIZE];
-    int headerlen = TEMP_FAILURE_RETRY(read(fd, header, sizeof(header)));
-    if (headerlen <= 0) die("error reading %s header", argv[2]);
-
-    MtdReadContext *in = mtd_read_partition(partition);
-    if (in == NULL) {
-        ALOGW("error opening %s: %s\n", argv[1], strerror(errno));
-        // just assume it needs re-writing
-    } else {
-        char check[HEADER_SIZE];
-        int checklen = mtd_read_data(in, check, sizeof(check));
-        if (checklen <= 0) {
-            ALOGW("error reading %s: %s\n", argv[1], strerror(errno));
-            // just assume it needs re-writing
-        } else if (checklen == headerlen && !memcmp(header, check, headerlen)) {
-            ALOGI("header is the same, not flashing %s\n", argv[1]);
-            return 0;
-        }
-        mtd_read_close(in);
-    }
-
-    // Skip the header (we'll come back to it), write everything else
-    ALOGI("flashing %s from %s\n", argv[1], argv[2]);
-
-    MtdWriteContext *out = mtd_write_partition(partition);
-    if (out == NULL) die("error writing %s", argv[1]);
-
-    char buf[HEADER_SIZE];
-    memset(buf, 0, headerlen);
-    int wrote = mtd_write_data(out, buf, headerlen);
-    if (wrote != headerlen) die("error writing %s", argv[1]);
-
-    int len;
-    while ((len = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf)))) > 0) {
-        wrote = mtd_write_data(out, buf, len);
-        if (wrote != len) die("error writing %s", argv[1]);
-    }
-    if (len < 0) die("error reading %s", argv[2]);
-
-    if (mtd_write_close(out)) die("error closing %s", argv[1]);
-
-    // Now come back and write the header last
-
-    out = mtd_write_partition(partition);
-    if (out == NULL) die("error re-opening %s", argv[1]);
-
-    wrote = mtd_write_data(out, header, headerlen);
-    if (wrote != headerlen) die("error re-writing %s", argv[1]);
-
-    // Need to write a complete block, so write the rest of the first block
-    size_t block_size;
-    if (mtd_partition_info(partition, NULL, &block_size, NULL))
-        die("error getting %s block size", argv[1]);
-
-    if (TEMP_FAILURE_RETRY(lseek(fd, headerlen, SEEK_SET)) != headerlen)
-        die("error rewinding %s", argv[2]);
-
-    int left = block_size - headerlen;
-    while (left < 0) left += block_size;
-    while (left > 0) {
-        len = TEMP_FAILURE_RETRY(read(fd, buf, left > (int)sizeof(buf) ? (int)sizeof(buf) : left));
-        if (len <= 0) die("error reading %s", argv[2]);
-        if (mtd_write_data(out, buf, len) != len)
-            die("error writing %s", argv[1]);
-        left -= len;
-    }
-
-    if (mtd_write_close(out)) die("error closing %s", argv[1]);
-    return 0;
-}
diff --git a/mtdutils/mounts.c b/mtdutils/mounts.c
deleted file mode 100644
index 6a9b03d30..000000000
--- a/mtdutils/mounts.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <mntent.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/mount.h>
-
-#include "mounts.h"
-
-struct MountedVolume {
-    const char *device;
-    const char *mount_point;
-    const char *filesystem;
-    const char *flags;
-};
-
-typedef struct {
-    MountedVolume *volumes;
-    int volumes_allocd;
-    int volume_count;
-} MountsState;
-
-static MountsState g_mounts_state = {
-    NULL,   // volumes
-    0,      // volumes_allocd
-    0       // volume_count
-};
-
-static inline void
-free_volume_internals(const MountedVolume *volume, int zero)
-{
-    free((char *)volume->device);
-    free((char *)volume->mount_point);
-    free((char *)volume->filesystem);
-    free((char *)volume->flags);
-    if (zero) {
-        memset((void *)volume, 0, sizeof(*volume));
-    }
-}
-
-#define PROC_MOUNTS_FILENAME   "/proc/mounts"
-
-int
-scan_mounted_volumes()
-{
-    FILE* fp;
-    struct mntent* mentry;
-
-    if (g_mounts_state.volumes == NULL) {
-        const int numv = 32;
-        MountedVolume *volumes = malloc(numv * sizeof(*volumes));
-        if (volumes == NULL) {
-            errno = ENOMEM;
-            return -1;
-        }
-        g_mounts_state.volumes = volumes;
-        g_mounts_state.volumes_allocd = numv;
-        memset(volumes, 0, numv * sizeof(*volumes));
-    } else {
-        /* Free the old volume strings.
-         */
-        int i;
-        for (i = 0; i < g_mounts_state.volume_count; i++) {
-            free_volume_internals(&g_mounts_state.volumes[i], 1);
-        }
-    }
-    g_mounts_state.volume_count = 0;
-
-    /* Open and read mount table entries. */
-    fp = setmntent(PROC_MOUNTS_FILENAME, "r");
-    if (fp == NULL) {
-        return -1;
-    }
-    while ((mentry = getmntent(fp)) != NULL) {
-        MountedVolume* v = &g_mounts_state.volumes[g_mounts_state.volume_count++];
-        v->device = strdup(mentry->mnt_fsname);
-        v->mount_point = strdup(mentry->mnt_dir);
-        v->filesystem = strdup(mentry->mnt_type);
-        v->flags = strdup(mentry->mnt_opts);
-    }
-    endmntent(fp);
-    return 0;
-}
-
-const MountedVolume *
-find_mounted_volume_by_device(const char *device)
-{
-    if (g_mounts_state.volumes != NULL) {
-        int i;
-        for (i = 0; i < g_mounts_state.volume_count; i++) {
-            MountedVolume *v = &g_mounts_state.volumes[i];
-            /* May be null if it was unmounted and we haven't rescanned.
-             */
-            if (v->device != NULL) {
-                if (strcmp(v->device, device) == 0) {
-                    return v;
-                }
-            }
-        }
-    }
-    return NULL;
-}
-
-const MountedVolume *
-find_mounted_volume_by_mount_point(const char *mount_point)
-{
-    if (g_mounts_state.volumes != NULL) {
-        int i;
-        for (i = 0; i < g_mounts_state.volume_count; i++) {
-            MountedVolume *v = &g_mounts_state.volumes[i];
-            /* May be null if it was unmounted and we haven't rescanned.
-             */
-            if (v->mount_point != NULL) {
-                if (strcmp(v->mount_point, mount_point) == 0) {
-                    return v;
-                }
-            }
-        }
-    }
-    return NULL;
-}
-
-int
-unmount_mounted_volume(const MountedVolume *volume)
-{
-    /* Intentionally pass NULL to umount if the caller tries
-     * to unmount a volume they already unmounted using this
-     * function.
-     */
-    int ret = umount(volume->mount_point);
-    if (ret == 0) {
-        free_volume_internals(volume, 1);
-        return 0;
-    }
-    return ret;
-}
-
-int
-remount_read_only(const MountedVolume* volume)
-{
-    return mount(volume->device, volume->mount_point, volume->filesystem,
-                 MS_NOATIME | MS_NODEV | MS_NODIRATIME |
-                 MS_RDONLY | MS_REMOUNT, 0);
-}
diff --git a/mtdutils/mtdutils.c b/mtdutils/mtdutils.c
deleted file mode 100644
index cd4f52cd5..000000000
--- a/mtdutils/mtdutils.c
+++ /dev/null
@@ -1,561 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/mount.h>  // for _IOW, _IOR, mount()
-#include <sys/stat.h>
-#include <mtd/mtd-user.h>
-#undef NDEBUG
-#include <assert.h>
-
-#include "mtdutils.h"
-
-struct MtdPartition {
-    int device_index;
-    unsigned int size;
-    unsigned int erase_size;
-    char *name;
-};
-
-struct MtdReadContext {
-    const MtdPartition *partition;
-    char *buffer;
-    size_t consumed;
-    int fd;
-};
-
-struct MtdWriteContext {
-    const MtdPartition *partition;
-    char *buffer;
-    size_t stored;
-    int fd;
-
-    off_t* bad_block_offsets;
-    int bad_block_alloc;
-    int bad_block_count;
-};
-
-typedef struct {
-    MtdPartition *partitions;
-    int partitions_allocd;
-    int partition_count;
-} MtdState;
-
-static MtdState g_mtd_state = {
-    NULL,   // partitions
-    0,      // partitions_allocd
-    -1      // partition_count
-};
-
-#define MTD_PROC_FILENAME   "/proc/mtd"
-
-int
-mtd_scan_partitions()
-{
-    char buf[2048];
-    const char *bufp;
-    int fd;
-    int i;
-    ssize_t nbytes;
-
-    if (g_mtd_state.partitions == NULL) {
-        const int nump = 32;
-        MtdPartition *partitions = malloc(nump * sizeof(*partitions));
-        if (partitions == NULL) {
-            errno = ENOMEM;
-            return -1;
-        }
-        g_mtd_state.partitions = partitions;
-        g_mtd_state.partitions_allocd = nump;
-        memset(partitions, 0, nump * sizeof(*partitions));
-    }
-    g_mtd_state.partition_count = 0;
-
-    /* Initialize all of the entries to make things easier later.
-     * (Lets us handle sparsely-numbered partitions, which
-     * may not even be possible.)
-     */
-    for (i = 0; i < g_mtd_state.partitions_allocd; i++) {
-        MtdPartition *p = &g_mtd_state.partitions[i];
-        if (p->name != NULL) {
-            free(p->name);
-            p->name = NULL;
-        }
-        p->device_index = -1;
-    }
-
-    /* Open and read the file contents.
-     */
-    fd = open(MTD_PROC_FILENAME, O_RDONLY);
-    if (fd < 0) {
-        goto bail;
-    }
-    nbytes = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf) - 1));
-    close(fd);
-    if (nbytes < 0) {
-        goto bail;
-    }
-    buf[nbytes] = '\0';
-
-    /* Parse the contents of the file, which looks like:
-     *
-     *     # cat /proc/mtd
-     *     dev:    size   erasesize  name
-     *     mtd0: 00080000 00020000 "bootloader"
-     *     mtd1: 00400000 00020000 "mfg_and_gsm"
-     *     mtd2: 00400000 00020000 "0000000c"
-     *     mtd3: 00200000 00020000 "0000000d"
-     *     mtd4: 04000000 00020000 "system"
-     *     mtd5: 03280000 00020000 "userdata"
-     */
-    bufp = buf;
-    while (nbytes > 0) {
-        int mtdnum, mtdsize, mtderasesize;
-        int matches;
-        char mtdname[64];
-        mtdname[0] = '\0';
-        mtdnum = -1;
-
-        matches = sscanf(bufp, "mtd%d: %x %x \"%63[^\"]",
-                &mtdnum, &mtdsize, &mtderasesize, mtdname);
-        /* This will fail on the first line, which just contains
-         * column headers.
-         */
-        if (matches == 4) {
-            MtdPartition *p = &g_mtd_state.partitions[mtdnum];
-            p->device_index = mtdnum;
-            p->size = mtdsize;
-            p->erase_size = mtderasesize;
-            p->name = strdup(mtdname);
-            if (p->name == NULL) {
-                errno = ENOMEM;
-                goto bail;
-            }
-            g_mtd_state.partition_count++;
-        }
-
-        /* Eat the line.
-         */
-        while (nbytes > 0 && *bufp != '\n') {
-            bufp++;
-            nbytes--;
-        }
-        if (nbytes > 0) {
-            bufp++;
-            nbytes--;
-        }
-    }
-
-    return g_mtd_state.partition_count;
-
-bail:
-    // keep "partitions" around so we can free the names on a rescan.
-    g_mtd_state.partition_count = -1;
-    return -1;
-}
-
-const MtdPartition *
-mtd_find_partition_by_name(const char *name)
-{
-    if (g_mtd_state.partitions != NULL) {
-        int i;
-        for (i = 0; i < g_mtd_state.partitions_allocd; i++) {
-            MtdPartition *p = &g_mtd_state.partitions[i];
-            if (p->device_index >= 0 && p->name != NULL) {
-                if (strcmp(p->name, name) == 0) {
-                    return p;
-                }
-            }
-        }
-    }
-    return NULL;
-}
-
-int
-mtd_mount_partition(const MtdPartition *partition, const char *mount_point,
-        const char *filesystem, int read_only)
-{
-    const unsigned long flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
-    char devname[64];
-    int rv = -1;
-
-    sprintf(devname, "/dev/block/mtdblock%d", partition->device_index);
-    if (!read_only) {
-        rv = mount(devname, mount_point, filesystem, flags, NULL);
-    }
-    if (read_only || rv < 0) {
-        rv = mount(devname, mount_point, filesystem, flags | MS_RDONLY, 0);
-        if (rv < 0) {
-            printf("Failed to mount %s on %s: %s\n",
-                    devname, mount_point, strerror(errno));
-        } else {
-            printf("Mount %s on %s read-only\n", devname, mount_point);
-        }
-    }
-#if 1   //TODO: figure out why this is happening; remove include of stat.h
-    if (rv >= 0) {
-        /* For some reason, the x bits sometimes aren't set on the root
-         * of mounted volumes.
-         */
-        struct stat st;
-        rv = stat(mount_point, &st);
-        if (rv < 0) {
-            return rv;
-        }
-        mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
-        if (new_mode != st.st_mode) {
-printf("Fixing execute permissions for %s\n", mount_point);
-            rv = chmod(mount_point, new_mode);
-            if (rv < 0) {
-                printf("Couldn't fix permissions for %s: %s\n",
-                        mount_point, strerror(errno));
-            }
-        }
-    }
-#endif
-    return rv;
-}
-
-int
-mtd_partition_info(const MtdPartition *partition,
-        size_t *total_size, size_t *erase_size, size_t *write_size)
-{
-    char mtddevname[32];
-    sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
-    int fd = open(mtddevname, O_RDONLY);
-    if (fd < 0) return -1;
-
-    struct mtd_info_user mtd_info;
-    int ret = ioctl(fd, MEMGETINFO, &mtd_info);
-    close(fd);
-    if (ret < 0) return -1;
-
-    if (total_size != NULL) *total_size = mtd_info.size;
-    if (erase_size != NULL) *erase_size = mtd_info.erasesize;
-    if (write_size != NULL) *write_size = mtd_info.writesize;
-    return 0;
-}
-
-MtdReadContext *mtd_read_partition(const MtdPartition *partition)
-{
-    MtdReadContext *ctx = (MtdReadContext*) malloc(sizeof(MtdReadContext));
-    if (ctx == NULL) return NULL;
-
-    ctx->buffer = malloc(partition->erase_size);
-    if (ctx->buffer == NULL) {
-        free(ctx);
-        return NULL;
-    }
-
-    char mtddevname[32];
-    sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
-    ctx->fd = open(mtddevname, O_RDONLY);
-    if (ctx->fd < 0) {
-        free(ctx->buffer);
-        free(ctx);
-        return NULL;
-    }
-
-    ctx->partition = partition;
-    ctx->consumed = partition->erase_size;
-    return ctx;
-}
-
-static int read_block(const MtdPartition *partition, int fd, char *data)
-{
-    struct mtd_ecc_stats before, after;
-    if (ioctl(fd, ECCGETSTATS, &before)) {
-        printf("mtd: ECCGETSTATS error (%s)\n", strerror(errno));
-        return -1;
-    }
-
-    loff_t pos = TEMP_FAILURE_RETRY(lseek64(fd, 0, SEEK_CUR));
-    if (pos == -1) {
-        printf("mtd: read_block: couldn't SEEK_CUR: %s\n", strerror(errno));
-        return -1;
-    }
-
-    ssize_t size = partition->erase_size;
-    int mgbb;
-
-    while (pos + size <= (int) partition->size) {
-        if (TEMP_FAILURE_RETRY(lseek64(fd, pos, SEEK_SET)) != pos ||
-                    TEMP_FAILURE_RETRY(read(fd, data, size)) != size) {
-            printf("mtd: read error at 0x%08llx (%s)\n",
-                   (long long)pos, strerror(errno));
-        } else if (ioctl(fd, ECCGETSTATS, &after)) {
-            printf("mtd: ECCGETSTATS error (%s)\n", strerror(errno));
-            return -1;
-        } else if (after.failed != before.failed) {
-            printf("mtd: ECC errors (%d soft, %d hard) at 0x%08llx\n",
-                   after.corrected - before.corrected,
-                   after.failed - before.failed, (long long)pos);
-            // copy the comparison baseline for the next read.
-            memcpy(&before, &after, sizeof(struct mtd_ecc_stats));
-        } else if ((mgbb = ioctl(fd, MEMGETBADBLOCK, &pos))) {
-            fprintf(stderr,
-                    "mtd: MEMGETBADBLOCK returned %d at 0x%08llx: %s\n",
-                    mgbb, (long long)pos, strerror(errno));
-        } else {
-            return 0;  // Success!
-        }
-
-        pos += partition->erase_size;
-    }
-
-    errno = ENOSPC;
-    return -1;
-}
-
-ssize_t mtd_read_data(MtdReadContext *ctx, char *data, size_t len)
-{
-    size_t read = 0;
-    while (read < len) {
-        if (ctx->consumed < ctx->partition->erase_size) {
-            size_t avail = ctx->partition->erase_size - ctx->consumed;
-            size_t copy = len - read < avail ? len - read : avail;
-            memcpy(data + read, ctx->buffer + ctx->consumed, copy);
-            ctx->consumed += copy;
-            read += copy;
-        }
-
-        // Read complete blocks directly into the user's buffer
-        while (ctx->consumed == ctx->partition->erase_size &&
-               len - read >= ctx->partition->erase_size) {
-            if (read_block(ctx->partition, ctx->fd, data + read)) return -1;
-            read += ctx->partition->erase_size;
-        }
-
-        if (read >= len) {
-            return read;
-        }
-
-        // Read the next block into the buffer
-        if (ctx->consumed == ctx->partition->erase_size && read < len) {
-            if (read_block(ctx->partition, ctx->fd, ctx->buffer)) return -1;
-            ctx->consumed = 0;
-        }
-    }
-
-    return read;
-}
-
-void mtd_read_close(MtdReadContext *ctx)
-{
-    close(ctx->fd);
-    free(ctx->buffer);
-    free(ctx);
-}
-
-MtdWriteContext *mtd_write_partition(const MtdPartition *partition)
-{
-    MtdWriteContext *ctx = (MtdWriteContext*) malloc(sizeof(MtdWriteContext));
-    if (ctx == NULL) return NULL;
-
-    ctx->bad_block_offsets = NULL;
-    ctx->bad_block_alloc = 0;
-    ctx->bad_block_count = 0;
-
-    ctx->buffer = malloc(partition->erase_size);
-    if (ctx->buffer == NULL) {
-        free(ctx);
-        return NULL;
-    }
-
-    char mtddevname[32];
-    sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
-    ctx->fd = open(mtddevname, O_RDWR);
-    if (ctx->fd < 0) {
-        free(ctx->buffer);
-        free(ctx);
-        return NULL;
-    }
-
-    ctx->partition = partition;
-    ctx->stored = 0;
-    return ctx;
-}
-
-static void add_bad_block_offset(MtdWriteContext *ctx, off_t pos) {
-    if (ctx->bad_block_count + 1 > ctx->bad_block_alloc) {
-        ctx->bad_block_alloc = (ctx->bad_block_alloc*2) + 1;
-        ctx->bad_block_offsets = realloc(ctx->bad_block_offsets,
-                                         ctx->bad_block_alloc * sizeof(off_t));
-    }
-    ctx->bad_block_offsets[ctx->bad_block_count++] = pos;
-}
-
-static int write_block(MtdWriteContext *ctx, const char *data)
-{
-    const MtdPartition *partition = ctx->partition;
-    int fd = ctx->fd;
-
-    off_t pos = TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_CUR));
-    if (pos == (off_t) -1) {
-        printf("mtd: write_block: couldn't SEEK_CUR: %s\n", strerror(errno));
-        return -1;
-    }
-
-    ssize_t size = partition->erase_size;
-    while (pos + size <= (int) partition->size) {
-        loff_t bpos = pos;
-        int ret = ioctl(fd, MEMGETBADBLOCK, &bpos);
-        if (ret != 0 && !(ret == -1 && errno == EOPNOTSUPP)) {
-            add_bad_block_offset(ctx, pos);
-            fprintf(stderr,
-                    "mtd: not writing bad block at 0x%08lx (ret %d): %s\n",
-                    pos, ret, strerror(errno));
-            pos += partition->erase_size;
-            continue;  // Don't try to erase known factory-bad blocks.
-        }
-
-        struct erase_info_user erase_info;
-        erase_info.start = pos;
-        erase_info.length = size;
-        int retry;
-        for (retry = 0; retry < 2; ++retry) {
-            if (ioctl(fd, MEMERASE, &erase_info) < 0) {
-                printf("mtd: erase failure at 0x%08lx (%s)\n",
-                        pos, strerror(errno));
-                continue;
-            }
-            if (TEMP_FAILURE_RETRY(lseek(fd, pos, SEEK_SET)) != pos ||
-                TEMP_FAILURE_RETRY(write(fd, data, size)) != size) {
-                printf("mtd: write error at 0x%08lx (%s)\n",
-                        pos, strerror(errno));
-            }
-
-            char verify[size];
-            if (TEMP_FAILURE_RETRY(lseek(fd, pos, SEEK_SET)) != pos ||
-                TEMP_FAILURE_RETRY(read(fd, verify, size)) != size) {
-                printf("mtd: re-read error at 0x%08lx (%s)\n",
-                        pos, strerror(errno));
-                continue;
-            }
-            if (memcmp(data, verify, size) != 0) {
-                printf("mtd: verification error at 0x%08lx (%s)\n",
-                        pos, strerror(errno));
-                continue;
-            }
-
-            if (retry > 0) {
-                printf("mtd: wrote block after %d retries\n", retry);
-            }
-            printf("mtd: successfully wrote block at %lx\n", pos);
-            return 0;  // Success!
-        }
-
-        // Try to erase it once more as we give up on this block
-        add_bad_block_offset(ctx, pos);
-        printf("mtd: skipping write block at 0x%08lx\n", pos);
-        ioctl(fd, MEMERASE, &erase_info);
-        pos += partition->erase_size;
-    }
-
-    // Ran out of space on the device
-    errno = ENOSPC;
-    return -1;
-}
-
-ssize_t mtd_write_data(MtdWriteContext *ctx, const char *data, size_t len)
-{
-    size_t wrote = 0;
-    while (wrote < len) {
-        // Coalesce partial writes into complete blocks
-        if (ctx->stored > 0 || len - wrote < ctx->partition->erase_size) {
-            size_t avail = ctx->partition->erase_size - ctx->stored;
-            size_t copy = len - wrote < avail ? len - wrote : avail;
-            memcpy(ctx->buffer + ctx->stored, data + wrote, copy);
-            ctx->stored += copy;
-            wrote += copy;
-        }
-
-        // If a complete block was accumulated, write it
-        if (ctx->stored == ctx->partition->erase_size) {
-            if (write_block(ctx, ctx->buffer)) return -1;
-            ctx->stored = 0;
-        }
-
-        // Write complete blocks directly from the user's buffer
-        while (ctx->stored == 0 && len - wrote >= ctx->partition->erase_size) {
-            if (write_block(ctx, data + wrote)) return -1;
-            wrote += ctx->partition->erase_size;
-        }
-    }
-
-    return wrote;
-}
-
-off_t mtd_erase_blocks(MtdWriteContext *ctx, int blocks)
-{
-    // Zero-pad and write any pending data to get us to a block boundary
-    if (ctx->stored > 0) {
-        size_t zero = ctx->partition->erase_size - ctx->stored;
-        memset(ctx->buffer + ctx->stored, 0, zero);
-        if (write_block(ctx, ctx->buffer)) return -1;
-        ctx->stored = 0;
-    }
-
-    off_t pos = TEMP_FAILURE_RETRY(lseek(ctx->fd, 0, SEEK_CUR));
-    if ((off_t) pos == (off_t) -1) {
-        printf("mtd_erase_blocks: couldn't SEEK_CUR: %s\n", strerror(errno));
-        return -1;
-    }
-
-    const int total = (ctx->partition->size - pos) / ctx->partition->erase_size;
-    if (blocks < 0) blocks = total;
-    if (blocks > total) {
-        errno = ENOSPC;
-        return -1;
-    }
-
-    // Erase the specified number of blocks
-    while (blocks-- > 0) {
-        loff_t bpos = pos;
-        if (ioctl(ctx->fd, MEMGETBADBLOCK, &bpos) > 0) {
-            printf("mtd: not erasing bad block at 0x%08lx\n", pos);
-            pos += ctx->partition->erase_size;
-            continue;  // Don't try to erase known factory-bad blocks.
-        }
-
-        struct erase_info_user erase_info;
-        erase_info.start = pos;
-        erase_info.length = ctx->partition->erase_size;
-        if (ioctl(ctx->fd, MEMERASE, &erase_info) < 0) {
-            printf("mtd: erase failure at 0x%08lx\n", pos);
-        }
-        pos += ctx->partition->erase_size;
-    }
-
-    return pos;
-}
-
-int mtd_write_close(MtdWriteContext *ctx)
-{
-    int r = 0;
-    // Make sure any pending data gets written
-    if (mtd_erase_blocks(ctx, 0) == (off_t) -1) r = -1;
-    if (close(ctx->fd)) r = -1;
-    free(ctx->bad_block_offsets);
-    free(ctx->buffer);
-    free(ctx);
-    return r;
-}
diff --git a/mtdutils/mtdutils.h b/mtdutils/mtdutils.h
deleted file mode 100644
index 8059d6a4d..000000000
--- a/mtdutils/mtdutils.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MTDUTILS_H_
-#define MTDUTILS_H_
-
-#include <sys/types.h>  // for size_t, etc.
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct MtdPartition MtdPartition;
-
-int mtd_scan_partitions(void);
-
-const MtdPartition *mtd_find_partition_by_name(const char *name);
-
-/* mount_point is like "/system"
- * filesystem is like "yaffs2"
- */
-int mtd_mount_partition(const MtdPartition *partition, const char *mount_point,
-        const char *filesystem, int read_only);
-
-/* get the partition and the minimum erase/write block size.  NULL is ok.
- */
-int mtd_partition_info(const MtdPartition *partition,
-        size_t *total_size, size_t *erase_size, size_t *write_size);
-
-/* read or write raw data from a partition, starting at the beginning.
- * skips bad blocks as best we can.
- */
-typedef struct MtdReadContext MtdReadContext;
-typedef struct MtdWriteContext MtdWriteContext;
-
-MtdReadContext *mtd_read_partition(const MtdPartition *);
-ssize_t mtd_read_data(MtdReadContext *, char *data, size_t data_len);
-void mtd_read_close(MtdReadContext *);
-
-MtdWriteContext *mtd_write_partition(const MtdPartition *);
-ssize_t mtd_write_data(MtdWriteContext *, const char *data, size_t data_len);
-off_t mtd_erase_blocks(MtdWriteContext *, int blocks);  /* 0 ok, -1 for all */
-int mtd_write_close(MtdWriteContext *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif  // MTDUTILS_H_