mirror of
https://github.com/ksherlock/profuse.git
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git-svn-id: https://profuse.googlecode.com/svn/branches/v2@166 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock
parent
d3b89e328d
commit
96eb6a4d36
@ -1,5 +1,5 @@
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CC = g++
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CPPFLAGS += -Wall -O2 -g
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CPPFLAGS += -Wall -O2 -g -fexceptions
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LDFLAGS += -L/usr/local/lib -lfuse
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newfs_pascal: \
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@ -56,6 +56,13 @@ enum {
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PASCAL_OPT_VERBOSE
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};
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struct options {
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char *format;
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int readOnly;
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int readWrite;
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};
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static struct fuse_opt pascal_options[] = {
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FUSE_OPT_KEY("-h", PASCAL_OPT_HELP),
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FUSE_OPT_KEY("--help", PASCAL_OPT_HELP),
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@ -182,6 +189,7 @@ int main(int argc, char **argv)
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if (!fFormat)
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fFormat = ProFUSE::DiskImage::ImageType(fDiskImage.c_str(), 'PO__');
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try {
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std::auto_ptr<ProFUSE::BlockDevice> device;
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@ -205,20 +213,25 @@ int main(int argc, char **argv)
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exit(1);
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}
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fVolume = new Pascal::VolumeEntry(device.get());
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device.release();
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}
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catch (ProFUSE::POSIXException &e)
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{
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std::fprintf(stderr, "%s\n", e.what());
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std::fprintf(stderr, "%s\n", std::strerror(e.error()));
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return -1;
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}
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catch (ProFUSE::Exception &e)
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{
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std::fprintf(stderr, "%s\n", e.what());
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return -1;
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}
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return 0;
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#ifdef __APPLE__
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391
pascal/profuse_pascal_ops.cpp
Normal file
391
pascal/profuse_pascal_ops.cpp
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@ -0,0 +1,391 @@
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#include <string>
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#include <vector>
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#include <cerrno>
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#include <sys/stat.h>
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#include <unistd.h>
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#define __FreeBSD__ 10
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#define __DARWIN_64_BIT_INO_T 1
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#define _FILE_OFFSET_BITS 64
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#define FUSE_USE_VERSION 27
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#include <fuse/fuse_opt.h>
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#include <fuse/fuse_lowlevel.h>
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#include "File.h"
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#include "../auto.h"
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#include "../Exception.h"
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#define NO_ATTR() \
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{ \
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if (size) fuse_reply_buf(req, NULL, 0); \
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else fuse_reply_xattr(req, 0); \
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return; \
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}
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#undef ERROR
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#define ERROR(cond,errno) if ( (cond) ){ fuse_reply_err(req, errno); return; }
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#define RETURN_XATTR(DATA, SIZE) \
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{ \
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if (size == 0) { fuse_reply_xattr(req, SIZE); return; } \
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if (size < SIZE) { fuse_reply_err(req, ERANGE); return; } \
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fuse_reply_buf(req, DATA, SIZE); return; \
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}
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using namespace Pascal;
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static FileEntry *findChild(VolumeEntry *volume, unsigned inode)
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{
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for (unsigned i = 0, l = volume->fileCount(); i < l; ++i)
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{
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FileEntry *child = volume->fileAtIndex(i);
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if (inode == child->inode()) return child;
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}
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return NULL;
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}
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static void pascal_init(void *userdata, struct fuse_conn_info *conn)
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{
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// nop
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}
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static void pascal_destroy(void *userdata)
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{
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// nop
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}
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#pragma mark -
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#pragma mark xattr
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static void pascal_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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FileEntry *file;
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std::string attr;
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unsigned attrSize;
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if (ino == 1) NO_ATTR()
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file = findChild(volume, ino);
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ERROR(file == NULL, ENOENT)
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attr += "pascal.fileKind";
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attr.append(1, 0);
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if (file->fileKind() == kTextFile)
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{
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attr += "com.apple.TextEncoding";
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attr.append(1, 0);
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attr += "user.charset";
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attr.append(1, 0);
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}
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// user.mime_type ? text/plain, ...
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attrSize = attr.size();
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if (size == 0)
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{
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fuse_reply_xattr(req, attrSize);
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return;
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}
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ERROR(size < attrSize, ERANGE)
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fuse_reply_buf(req, attr.data(), attrSize);
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}
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static void pascal_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, size_t size)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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FileEntry *file;
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std::string attr(name);
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ERROR(ino == 1, ENOATTR)
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file = findChild(volume, ino);
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ERROR(file == NULL, ENOENT)
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if (attr == "pascal.fileKind")
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{
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uint8_t fk = file->fileKind();
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RETURN_XATTR((const char *)&fk, 1)
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}
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if (file->fileKind() == kTextFile)
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{
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if (attr == "user.charset")
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{
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static const char *data="ascii";
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static unsigned dataSize = sizeof(data) - 1;
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RETURN_XATTR(data, dataSize)
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}
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if (attr == "com.apple.TextEncoding")
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{
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static const char *data = "us-ascii;1536";
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static unsigned dataSize = sizeof(data) - 1;
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RETURN_XATTR(data, dataSize)
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}
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}
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ERROR(true, ENOATTR);
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return;
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}
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// OS X version.
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static void pascal_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, size_t size, uint32_t off)
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{
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pascal_getxattr(req, ino, name, size);
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}
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#pragma mark -
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#pragma mark dirent
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static void pascal_opendir(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
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{
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ERROR(ino != 1, ENOTDIR)
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fi->fh = 0;
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fuse_reply_open(req, fi);
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}
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static void pascal_releasedir(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
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{
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// nop.
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}
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static void pascal_readdir(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, struct fuse_file_info *fi)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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auto_array<char> buffer(new char[size]);
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unsigned count = volume->fileCount();
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struct stat st;
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unsigned currentSize = 0;
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std::memset(&st, 0, sizeof(st));
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for (unsigned i = off; i < count; ++i)
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{
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unsigned tmp;
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FileEntry *file = volume->fileAtIndex(i);
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if (file == NULL) break; //?
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// only these fields are used.
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st.st_mode = S_IFREG | 0444;
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st.st_ino = file->inode();
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tmp = fuse_add_direntry(req, NULL, 0, file->name(), NULL, 0);
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if (tmp + currentSize > size) break;
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fuse_add_direntry(req, buffer.get() + currentSize, size, file->name(), &st, i + 1);
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currentSize += tmp;
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}
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fuse_reply_buf(req,buffer.get(), currentSize);
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}
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#pragma mark -
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#pragma mark stat
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static void stat(FileEntry *file, struct stat *st)
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{
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std::memset(st, 0, sizeof(st));
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time_t t = file->modification();
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st->st_ino = file->inode();
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st->st_nlink = 1;
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st->st_mode = S_IFREG | 0444;
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st->st_size = file->fileSize();
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st->st_blocks = file->blocks();
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st->st_blksize = 512;
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st->st_atime = t;
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st->st_mtime = t;
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st->st_ctime = t;
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// st.st_birthtime not yet supported by MacFUSE.
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}
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static void stat(VolumeEntry *volume, struct stat *st)
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{
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std::memset(st, 0, sizeof(st));
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time_t t = volume->lastBoot();
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st->st_ino = volume->inode();
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st->st_nlink = 1 + volume->fileCount();
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st->st_mode = S_IFDIR | 0555;
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st->st_size = volume->blocks() * 512;
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st->st_blocks = volume->blocks();
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st->st_blksize = 512;
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st->st_atime = t;
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st->st_mtime = t;
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st->st_ctime = t;
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// st.st_birthtime not yet supported by MacFUSE.
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}
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static void pascal_lookup(fuse_req_t req, fuse_ino_t parent, const char *name)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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struct fuse_entry_param entry;
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ERROR(parent != 1, ENOTDIR)
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ERROR(!FileEntry::ValidName(name), ENOENT)
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for (unsigned i = 0, l = volume->fileCount(); i < l; ++i)
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{
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FileEntry *file = volume->fileAtIndex(i);
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if (file == NULL) break;
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if (::strcasecmp(file->name(), name)) continue;
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// found it!
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std::memset(&entry, 0, sizeof(entry));
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entry.attr_timeout = 0.0;
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entry.entry_timeout = 0.0;
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entry.ino = file->inode();
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stat(file, &entry.attr);
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fuse_reply_entry(req, &entry);
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return;
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}
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ERROR(true, ENOENT)
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}
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static void pascal_getattr(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
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{
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struct stat st;
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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FileEntry *file;
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if (ino == 1)
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{
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stat(volume, &st);
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fuse_reply_attr(req, &st, 0.0);
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return;
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}
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file = findChild(volume, ino);
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ERROR(file == NULL, ENOENT)
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stat(file, &st);
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fuse_reply_attr(req, &st, 0.0);
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}
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#pragma mark -
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#pragma mark file
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static void pascal_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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FileEntry *file;
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ERROR(ino == 1, EISDIR)
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file = findChild(volume, ino);
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ERROR(file == NULL, ENOENT)
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ERROR((fi->flags & O_ACCMODE) != O_RDONLY, EACCES)
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fi->fh = (uint64_t)file;
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fuse_reply_open(req, fi);
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}
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static void pascal_release(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
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{
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// nop
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}
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static void pascal_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, struct fuse_file_info *fi)
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{
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VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
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FileEntry *file = (FileEntry *)fi->fh;
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try
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{
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auto_array<uint8_t> buffer(new uint8_t[size]);
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unsigned rsize = file->read(buffer.get(), size, off);
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fuse_reply_buf(req, (const char *)(buffer.get()), rsize);
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return;
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}
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catch (ProFUSE::POSIXException &e)
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{
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ERROR(true, e.error());
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}
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catch( ... )
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{
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ERROR(true, EIO)
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}
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}
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void init_ops(fuse_lowlevel_ops *ops)
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{
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std::memset(ops, 0, sizeof(fuse_lowlevel_ops));
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// returns pascal.filekind, text encoding.
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ops->listxattr = pascal_listxattr;
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ops->getxattr = pascal_getxattr;
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// volume is a dir.
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ops->opendir = pascal_opendir;
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ops->releasedir = pascal_releasedir;
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ops->readdir = pascal_readdir;
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ops->lookup = pascal_lookup;
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ops->getattr = pascal_getattr;
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ops->open = pascal_open;
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ops->release = pascal_release;
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ops->read = pascal_read;
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}
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