summaryrefslogtreecommitdiffstats
path: root/minzip
diff options
context:
space:
mode:
Diffstat (limited to 'minzip')
-rw-r--r--minzip/Android.mk12
-rw-r--r--minzip/Hash.c4
-rw-r--r--minzip/Hash.h8
-rw-r--r--minzip/SysUtil.c114
-rw-r--r--minzip/Zip.c23
5 files changed, 102 insertions, 59 deletions
diff --git a/minzip/Android.mk b/minzip/Android.mk
index ad976e796..957ab0b29 100644
--- a/minzip/Android.mk
+++ b/minzip/Android.mk
@@ -22,9 +22,12 @@ LOCAL_CFLAGS += -DPLATFORM_SDK_VERSION=$(PLATFORM_SDK_VERSION)
LOCAL_MODULE := libminzip
-LOCAL_CFLAGS += -Wall
LOCAL_SHARED_LIBRARIES += libz
+LOCAL_CLANG := true
+
+LOCAL_CFLAGS += -Werror -Wall
+
include $(BUILD_SHARED_LIBRARY)
@@ -47,9 +50,14 @@ LOCAL_STATIC_LIBRARIES += libselinux
LOCAL_CFLAGS += -DHAVE_SELINUX
endif
+LOCAL_CFLAGS += -DPLATFORM_SDK_VERSION=$(PLATFORM_SDK_VERSION)
+
LOCAL_MODULE := libminzip
-LOCAL_CFLAGS += -Wall
LOCAL_STATIC_LIBRARIES += libz
+LOCAL_CLANG := true
+
+LOCAL_CFLAGS += -Werror -Wall
+
include $(BUILD_STATIC_LIBRARY)
diff --git a/minzip/Hash.c b/minzip/Hash.c
index 8f8ed68e5..49bcb3161 100644
--- a/minzip/Hash.c
+++ b/minzip/Hash.c
@@ -361,7 +361,7 @@ void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc,
{
const void* data = (const void*)mzHashIterData(&iter);
int count;
-
+
count = countProbes(pHashTable, (*calcFunc)(data), data, cmpFunc);
numEntries++;
@@ -373,7 +373,7 @@ void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc,
totalProbe += count;
}
- LOGI("Probe: min=%d max=%d, total=%d in %d (%d), avg=%.3f\n",
+ LOGV("Probe: min=%d max=%d, total=%d in %d (%d), avg=%.3f\n",
minProbe, maxProbe, totalProbe, numEntries, pHashTable->tableSize,
(float) totalProbe / (float) numEntries);
}
diff --git a/minzip/Hash.h b/minzip/Hash.h
index 8194537f3..e83eac414 100644
--- a/minzip/Hash.h
+++ b/minzip/Hash.h
@@ -15,6 +15,10 @@
#include <stdbool.h>
#include <assert.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* compute the hash of an item with a specific type */
typedef unsigned int (*HashCompute)(const void* item);
@@ -183,4 +187,8 @@ typedef unsigned int (*HashCalcFunc)(const void* item);
void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc,
HashCompareFunc cmpFunc);
+#ifdef __cplusplus
+}
+#endif
+
#endif /*_MINZIP_HASH*/
diff --git a/minzip/SysUtil.c b/minzip/SysUtil.c
index 0ac1fa9b8..9c3575b9c 100644
--- a/minzip/SysUtil.c
+++ b/minzip/SysUtil.c
@@ -3,17 +3,18 @@
*
* System utilities.
*/
-#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
#include <stdio.h>
-#include <unistd.h>
+#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
-#include <sys/types.h>
#include <sys/stat.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include <assert.h>
+#include <sys/types.h>
+#include <unistd.h>
#define LOG_TAG "sysutil"
#include "Log.h"
@@ -57,8 +58,7 @@ static int getFileStartAndLength(int fd, loff_t *start_, size_t *length_)
* On success, returns 0 and fills out "pMap". On failure, returns a nonzero
* value and does not disturb "pMap".
*/
-static int sysMapFD(int fd, MemMapping* pMap)
-{
+static bool sysMapFD(int fd, MemMapping* pMap) {
loff_t start;
size_t length;
void* memPtr;
@@ -75,19 +75,23 @@ static int sysMapFD(int fd, MemMapping* pMap)
memPtr = mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, start);
#endif
if (memPtr == MAP_FAILED) {
- LOGW("mmap(%d, R, PRIVATE, %d, %d) failed: %s\n", (int) length,
- fd, (int) start, strerror(errno));
- return -1;
+ LOGE("mmap(%d, R, PRIVATE, %d, 0) failed: %s\n", (int) length, fd, strerror(errno));
+ return false;
}
pMap->addr = memPtr;
pMap->length = length;
pMap->range_count = 1;
pMap->ranges = malloc(sizeof(MappedRange));
+ if (pMap->ranges == NULL) {
+ LOGE("malloc failed: %s\n", strerror(errno));
+ munmap(memPtr, length);
+ return false;
+ }
pMap->ranges[0].addr = memPtr;
pMap->ranges[0].length = length;
- return 0;
+ return true;
}
static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
@@ -95,12 +99,12 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
char block_dev[PATH_MAX+1];
size_t size;
unsigned int blksize;
- unsigned int blocks;
+ size_t blocks;
unsigned int range_count;
unsigned int i;
if (fgets(block_dev, sizeof(block_dev), mapf) == NULL) {
- LOGW("failed to read block device from header\n");
+ LOGE("failed to read block device from header\n");
return -1;
}
for (i = 0; i < sizeof(block_dev); ++i) {
@@ -111,15 +115,24 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
}
if (fscanf(mapf, "%zu %u\n%u\n", &size, &blksize, &range_count) != 3) {
- LOGW("failed to parse block map header\n");
+ LOGE("failed to parse block map header\n");
+ return -1;
+ }
+ if (blksize != 0) {
+ blocks = ((size-1) / blksize) + 1;
+ }
+ if (size == 0 || blksize == 0 || blocks > SIZE_MAX / blksize || range_count == 0) {
+ LOGE("invalid data in block map file: size %zu, blksize %u, range_count %u\n",
+ size, blksize, range_count);
return -1;
}
-
- blocks = ((size-1) / blksize) + 1;
pMap->range_count = range_count;
- pMap->ranges = malloc(range_count * sizeof(MappedRange));
- memset(pMap->ranges, 0, range_count * sizeof(MappedRange));
+ pMap->ranges = calloc(range_count, sizeof(MappedRange));
+ if (pMap->ranges == NULL) {
+ LOGE("calloc(%u, %zu) failed: %s\n", range_count, sizeof(MappedRange), strerror(errno));
+ return -1;
+ }
// Reserve enough contiguous address space for the whole file.
unsigned char* reserve;
@@ -130,25 +143,34 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
reserve = mmap(NULL, blocks * blksize, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0);
#endif
if (reserve == MAP_FAILED) {
- LOGW("failed to reserve address space: %s\n", strerror(errno));
+ LOGE("failed to reserve address space: %s\n", strerror(errno));
+ free(pMap->ranges);
return -1;
}
- pMap->ranges[range_count-1].addr = reserve;
- pMap->ranges[range_count-1].length = blocks * blksize;
-
int fd = open(block_dev, O_RDONLY);
if (fd < 0) {
- LOGW("failed to open block device %s: %s\n", block_dev, strerror(errno));
+ LOGE("failed to open block device %s: %s\n", block_dev, strerror(errno));
+ 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) {
- int start, end;
- if (fscanf(mapf, "%d %d\n", &start, &end) != 2) {
- LOGW("failed to parse range %d in block map\n", i);
- return -1;
+ size_t start, end;
+ if (fscanf(mapf, "%zu %zu\n", &start, &end) != 2) {
+ LOGE("failed to parse range %d in block map\n", i);
+ success = false;
+ break;
+ }
+ size_t length = (end - start) * blksize;
+ if (end <= start || (end - start) > SIZE_MAX / blksize || length > remaining_size) {
+ LOGE("unexpected range in block map: %zu %zu\n", start, end);
+ success = false;
+ break;
}
#if (PLATFORM_SDK_VERSION >= 21)
void* addr = mmap64(next, (end-start)*blksize, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize);
@@ -157,15 +179,28 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
void* addr = mmap(next, (end-start)*blksize, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize);
#endif
if (addr == MAP_FAILED) {
- LOGW("failed to map block %d: %s\n", i, strerror(errno));
- return -1;
+ LOGE("failed to map block %d: %s\n", i, strerror(errno));
+ success = false;
+ break;
}
pMap->ranges[i].addr = addr;
- pMap->ranges[i].length = (end-start)*blksize;
+ pMap->ranges[i].length = length;
- next += pMap->ranges[i].length;
+ next += length;
+ remaining_size -= length;
+ }
+ if (success && remaining_size != 0) {
+ LOGE("ranges in block map are invalid: remaining_size = %zu\n", 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;
@@ -182,25 +217,26 @@ int sysMapFile(const char* fn, MemMapping* pMap)
// A map of blocks
FILE* mapf = fopen(fn+1, "r");
if (mapf == NULL) {
- LOGV("Unable to open '%s': %s\n", fn+1, strerror(errno));
+ LOGE("Unable to open '%s': %s\n", fn+1, strerror(errno));
return -1;
}
if (sysMapBlockFile(mapf, pMap) != 0) {
- LOGW("Map of '%s' failed\n", fn);
+ LOGE("Map of '%s' failed\n", fn);
+ fclose(mapf);
return -1;
}
fclose(mapf);
} else {
// This is a regular file.
- int fd = open(fn, O_RDONLY, 0);
- if (fd < 0) {
+ int fd = open(fn, O_RDONLY);
+ if (fd == -1) {
LOGE("Unable to open '%s': %s\n", fn, strerror(errno));
return -1;
}
- if (sysMapFD(fd, pMap) != 0) {
+ if (!sysMapFD(fd, pMap)) {
LOGE("Map of '%s' failed\n", fn);
close(fd);
return -1;
@@ -219,7 +255,7 @@ 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) {
- LOGW("munmap(%p, %d) failed: %s\n",
+ LOGE("munmap(%p, %d) failed: %s\n",
pMap->ranges[i].addr, (int)pMap->ranges[i].length, strerror(errno));
}
}
diff --git a/minzip/Zip.c b/minzip/Zip.c
index f47a480f1..1c3239df4 100644
--- a/minzip/Zip.c
+++ b/minzip/Zip.c
@@ -198,10 +198,10 @@ static bool parseZipArchive(ZipArchive* pArchive)
*/
val = get4LE(pArchive->addr);
if (val == ENDSIG) {
- LOGI("Found Zip archive, but it looks empty\n");
+ LOGW("Found Zip archive, but it looks empty\n");
goto bail;
} else if (val != LOCSIG) {
- LOGV("Not a Zip archive (found 0x%08x)\n", val);
+ LOGW("Not a Zip archive (found 0x%08x)\n", val);
goto bail;
}
@@ -217,7 +217,7 @@ static bool parseZipArchive(ZipArchive* pArchive)
ptr--;
}
if (ptr < (const unsigned char*) pArchive->addr) {
- LOGI("Could not find end-of-central-directory in Zip\n");
+ LOGW("Could not find end-of-central-directory in Zip\n");
goto bail;
}
@@ -431,7 +431,7 @@ int mzOpenZipArchive(unsigned char* addr, size_t length, ZipArchive* pArchive)
if (length < ENDHDR) {
err = -1;
- LOGV("File '%s' too small to be zip (%zd)\n", fileName, map.length);
+ LOGW("Archive %p is too small to be zip (%zd)\n", pArchive, length);
goto bail;
}
@@ -440,7 +440,7 @@ int mzOpenZipArchive(unsigned char* addr, size_t length, ZipArchive* pArchive)
if (!parseZipArchive(pArchive)) {
err = -1;
- LOGV("Parsing '%s' failed\n", fileName);
+ LOGW("Parsing archive %p failed\n", pArchive);
goto bail;
}
@@ -508,7 +508,6 @@ static bool processDeflatedEntry(const ZipArchive *pArchive,
void *cookie)
{
long result = -1;
- unsigned char readBuf[32 * 1024];
unsigned char procBuf[32 * 1024];
z_stream zstream;
int zerr;
@@ -551,7 +550,7 @@ static bool processDeflatedEntry(const ZipArchive *pArchive,
/* uncompress the data */
zerr = inflate(&zstream, Z_NO_FLUSH);
if (zerr != Z_OK && zerr != Z_STREAM_END) {
- LOGD("zlib inflate call failed (zerr=%d)\n", zerr);
+ LOGW("zlib inflate call failed (zerr=%d)\n", zerr);
goto z_bail;
}
@@ -605,7 +604,6 @@ bool mzProcessZipEntryContents(const ZipArchive *pArchive,
void *cookie)
{
bool ret = false;
- off_t oldOff;
switch (pEntry->compression) {
case STORED:
@@ -623,13 +621,6 @@ bool mzProcessZipEntryContents(const ZipArchive *pArchive,
return ret;
}
-static bool crcProcessFunction(const unsigned char *data, int dataLen,
- void *crc)
-{
- *(unsigned long *)crc = crc32(*(unsigned long *)crc, data, dataLen);
- return true;
-}
-
typedef struct {
char *buf;
int bufLen;
@@ -1012,7 +1003,7 @@ bool mzExtractRecursive(const ZipArchive *pArchive,
if (callback != NULL) callback(targetFile, cookie);
}
- LOGD("Extracted %d file(s)\n", extractCount);
+ LOGV("Extracted %d file(s)\n", extractCount);
free(helper.buf);
free(zpath);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 06:33:55 +0100