1 files changed, 0 insertions, 212 deletions

diff --git a/minzip/SysUtil.cpp b/minzip/SysUtil.cpp
deleted file mode 100644
index 2936c5ca4..000000000
--- a/minzip/SysUtil.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * System utilities.
- */
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <android-base/logging.h>
-
-#include "SysUtil.h"
-
-static bool sysMapFD(int fd, MemMapping* pMap) {
-    assert(pMap != NULL);
-
-    struct stat sb;
-    if (fstat(fd, &sb) == -1) {
-        PLOG(ERROR) << "fstat(" << fd << ") failed";
-        return false;
-    }
-
-    void* memPtr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
-    if (memPtr == MAP_FAILED) {
-        PLOG(ERROR) << "mmap(" << sb.st_size << ", R, PRIVATE, " << fd << ", 0) failed";
-        return false;
-    }
-
-    pMap->addr = reinterpret_cast<unsigned char*>(memPtr);
-    pMap->length = sb.st_size;
-    pMap->range_count = 1;
-    pMap->ranges = reinterpret_cast<MappedRange*>(malloc(sizeof(MappedRange)));
-    if (pMap->ranges == NULL) {
-        PLOG(ERROR) << "malloc failed";
-        munmap(memPtr, sb.st_size);
-        return false;
-    }
-    pMap->ranges[0].addr = memPtr;
-    pMap->ranges[0].length = sb.st_size;
-
-    return true;
-}
-
-static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
-{
-    char block_dev[PATH_MAX+1];
-    size_t size;
-    unsigned int blksize;
-    size_t blocks;
-    unsigned int range_count;
-    unsigned int i;
-
-    if (fgets(block_dev, sizeof(block_dev), mapf) == NULL) {
-        PLOG(ERROR) << "failed to read block device from header";
-        return -1;
-    }
-    for (i = 0; i < sizeof(block_dev); ++i) {
-        if (block_dev[i] == '\n') {
-            block_dev[i] = 0;
-            break;
-        }
-    }
-
-    if (fscanf(mapf, "%zu %u\n%u\n", &size, &blksize, &range_count) != 3) {
-        LOG(ERROR) << "failed to parse block map header";
-        return -1;
-    }
-    if (blksize != 0) {
-        blocks = ((size-1) / blksize) + 1;
-    }
-    if (size == 0 || blksize == 0 || blocks > SIZE_MAX / blksize || range_count == 0) {
-        LOG(ERROR) << "invalid data in block map file: size " << size << ", blksize " << blksize
-                   << ", range_count " << range_count;
-        return -1;
-    }
-
-    pMap->range_count = range_count;
-    pMap->ranges = reinterpret_cast<MappedRange*>(calloc(range_count, sizeof(MappedRange)));
-    if (pMap->ranges == NULL) {
-        PLOG(ERROR) << "calloc(" << range_count << ", " << sizeof(MappedRange) << ") failed";
-        return -1;
-    }
-
-    // Reserve enough contiguous address space for the whole file.
-    unsigned char* reserve = reinterpret_cast<unsigned char*>(mmap64(NULL, blocks * blksize,
-            PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0));
-    if (reserve == MAP_FAILED) {
-        PLOG(ERROR) << "failed to reserve address space";
-        free(pMap->ranges);
-        return -1;
-    }
-
-    int fd = open(block_dev, O_RDONLY);
-    if (fd < 0) {
-        PLOG(ERROR) << "failed to open block device " << block_dev;
-        munmap(reserve, blocks * blksize);
-        free(pMap->ranges);
-        return -1;
-    }
-
-    unsigned char* next = reserve;
-    size_t remaining_size = blocks * blksize;
-    bool success = true;
-    for (i = 0; i < range_count; ++i) {
-        size_t start, end;
-        if (fscanf(mapf, "%zu %zu\n", &start, &end) != 2) {
-            LOG(ERROR) << "failed to parse range " << i << " in block map";
-            success = false;
-            break;
-        }
-        size_t length = (end - start) * blksize;
-        if (end <= start || (end - start) > SIZE_MAX / blksize || length > remaining_size) {
-          LOG(ERROR) << "unexpected range in block map: " << start << " " << end;
-          success = false;
-          break;
-        }
-
-        void* addr = mmap64(next, length, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize);
-        if (addr == MAP_FAILED) {
-            PLOG(ERROR) << "failed to map block " << i;
-            success = false;
-            break;
-        }
-        pMap->ranges[i].addr = addr;
-        pMap->ranges[i].length = length;
-
-        next += length;
-        remaining_size -= length;
-    }
-    if (success && remaining_size != 0) {
-      LOG(ERROR) << "ranges in block map are invalid: remaining_size = " << remaining_size;
-      success = false;
-    }
-    if (!success) {
-      close(fd);
-      munmap(reserve, blocks * blksize);
-      free(pMap->ranges);
-      return -1;
-    }
-
-    close(fd);
-    pMap->addr = reserve;
-    pMap->length = size;
-
-    LOG(INFO) << "mmapped " << range_count << " ranges";
-
-    return 0;
-}
-
-int sysMapFile(const char* fn, MemMapping* pMap)
-{
-    memset(pMap, 0, sizeof(*pMap));
-
-    if (fn && fn[0] == '@') {
-        // A map of blocks
-        FILE* mapf = fopen(fn+1, "r");
-        if (mapf == NULL) {
-            PLOG(ERROR) << "Unable to open '" << (fn+1) << "'";
-            return -1;
-        }
-
-        if (sysMapBlockFile(mapf, pMap) != 0) {
-            LOG(ERROR) << "Map of '" << fn << "' failed";
-            fclose(mapf);
-            return -1;
-        }
-
-        fclose(mapf);
-    } else {
-        // This is a regular file.
-        int fd = open(fn, O_RDONLY);
-        if (fd == -1) {
-            PLOG(ERROR) << "Unable to open '" << fn << "'";
-            return -1;
-        }
-
-        if (!sysMapFD(fd, pMap)) {
-            LOG(ERROR) << "Map of '" << fn << "' failed";
-            close(fd);
-            return -1;
-        }
-
-        close(fd);
-    }
-    return 0;
-}
-
-/*
- * Release a memory mapping.
- */
-void sysReleaseMap(MemMapping* pMap)
-{
-    int i;
-    for (i = 0; i < pMap->range_count; ++i) {
-        if (munmap(pMap->ranges[i].addr, pMap->ranges[i].length) < 0) {
-            PLOG(ERROR) << "munmap(" << pMap->ranges[i].addr << ", " << pMap->ranges[i].length
-                        << ") failed";
-        }
-    }
-    free(pMap->ranges);
-    pMap->ranges = NULL;
-    pMap->range_count = 0;
-}