JNIEXPORT jlong JNICALL
Java_java_util_zip_ZipFile_open(JNIEnv *env, jclass cls, jstring name, jint mode)
{
const char *path = JNU_GetStringPlatformChars(env, name, 0);
jlong result = 0;
int flag = 0;
if (mode & OPEN_READ) flag |= O_RDONLY;
if (mode & OPEN_DELETE) flag |= JVM_O_DELETE;
if (path != 0) {
char *msg;
jzfile *zip = ZIP_Open_Generic(path, &msg, flag);
JNU_ReleaseStringPlatformChars(env, name, path);
if (zip != 0) {
result = ptr_to_jlong(zip);
} else if (msg != 0) {
ThrowZipException(env, msg);
} else if (errno == ENOMEM) {
JNU_ThrowOutOfMemoryError(env, 0);
} else {
ThrowZipException(env, "error in opening zip file");
}
}
return result;
}
JNIEXPORT jlong JNICALL
Java_java_util_zip_ZipFile_open(JNIEnv *env, jclass cls, jstring name,
jint mode, jlong lastModified,
jboolean usemmap)
{
const char *path = JNU_GetStringPlatformChars(env, name, 0);
char *msg = 0;
jlong result = 0;
int flag = 0;
jzfile *zip = 0;
if (mode & OPEN_READ) flag |= O_RDONLY;
if (mode & OPEN_DELETE) flag |= JVM_O_DELETE;
if (path != 0) {
zip = ZIP_Get_From_Cache(path, &msg, lastModified);
if (zip == 0 && msg == 0) {
ZFILE zfd = 0;
#ifdef WIN32
zfd = winFileHandleOpen(env, name, flag);
if (zfd == -1) {
/* Exception already pending. */
goto finally;
}
#else
zfd = JVM_Open(path, flag, 0);
if (zfd < 0) {
throwFileNotFoundException(env, name);
goto finally;
}
#endif
zip = ZIP_Put_In_Cache0(path, zfd, &msg, lastModified, usemmap);
}
if (zip != 0) {
result = ptr_to_jlong(zip);
} else if (msg != 0) {
ThrowZipException(env, msg);
free(msg);
} else if (errno == ENOMEM) {
JNU_ThrowOutOfMemoryError(env, 0);
} else {
ThrowZipException(env, "error in opening zip file");
}
finally:
JNU_ReleaseStringPlatformChars(env, name, path);
}
return result;
}
JNIEXPORT jint JNICALL
Java_java_util_zip_ZipFile_read(JNIEnv *env, jclass cls, jlong zfile,
jlong zentry, jint pos, jbyteArray bytes,
jint off, jint len)
{
#define BUFSIZE 8192
jzfile *zip = jlong_to_ptr(zfile);
jbyte buf[BUFSIZE];
char *msg;
if (len > BUFSIZE) {
len = BUFSIZE;
}
ZIP_Lock(zip);
len = ZIP_Read(zip, jlong_to_ptr(zentry), pos, buf, len);
msg = zip->msg;
ZIP_Unlock(zip);
if (len == -1) {
if (msg != 0) {
ThrowZipException(env, msg);
} else {
JNU_ThrowIOException(env, strerror(errno));
}
} else {
(*env)->SetByteArrayRegion(env, bytes, off, len, buf);
}
return len;
}
JNIEXPORT jint JNICALL
Java_java_util_zip_ZipFile_read(JNIEnv *env, jclass cls, jlong zfile,
jlong zentry, jlong pos, jbyteArray bytes,
jint off, jint len)
{
jzfile *zip = jlong_to_ptr(zfile);
char *msg;
#define BUFSIZE 8192
/* copy via tmp stack buffer: */
jbyte buf[BUFSIZE];
if (len > BUFSIZE) {
len = BUFSIZE;
}
ZIP_Lock(zip);
len = ZIP_Read(zip, jlong_to_ptr(zentry), pos, buf, len);
msg = zip->msg;
ZIP_Unlock(zip);
if (len != -1) {
(*env)->SetByteArrayRegion(env, bytes, off, len, buf);
}
if (len == -1) {
if (msg != 0) {
ThrowZipException(env, msg);
} else {
char errmsg[128];
sprintf(errmsg, "errno: %d, error: %s\n",
errno, "Error reading ZIP file");
JNU_ThrowIOExceptionWithLastError(env, errmsg);
}
}
return len;
}
