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VFS: Use VFiles for zip dirs

This commit is contained in:
Jeffrey Pfau 2015-12-29 07:24:15 -05:00
parent d1b12307ef
commit f0f43d4a39
1 changed files with 69 additions and 1 deletions
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70
src/util/vfs/vfs-zip.c
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@ -78,10 +78,76 @@ static struct VDir* _vdzOpenDir(struct VDir* vd, const char* path);
static const char* _vdezName(struct VDirEntry* vde);
static enum VFSType _vdezType(struct VDirEntry* vde);
#ifndef USE_LIBZIP
static voidpf _vfmzOpen(voidpf opaque, const char* filename, int mode) {
UNUSED(opaque);
int flags = 0;
switch (mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) {
case ZLIB_FILEFUNC_MODE_READ:
flags = O_RDONLY;
break;
case ZLIB_FILEFUNC_MODE_WRITE:
flags = O_WRONLY;
break;
case ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE:
flags = O_RDWR;
break;
}
if (mode & ZLIB_FILEFUNC_MODE_CREATE) {
flags |= O_CREAT;
}
return VFileOpen(filename, flags);
}
static uLong _vfmzRead(voidpf opaque, voidpf stream, void* buf, uLong size) {
UNUSED(opaque);
struct VFile* vf = stream;
ssize_t r = vf->read(vf, buf, size);
if (r < 0) {
return 0;
}
return r;
}
int _vfmzClose(voidpf opaque, voidpf stream) {
UNUSED(opaque);
struct VFile* vf = stream;
return vf->close(vf);
}
int _vfmzError(voidpf opaque, voidpf stream) {
UNUSED(opaque);
struct VFile* vf = stream;
return vf->seek(vf, 0, SEEK_CUR) < 0;
}
long _vfmzTell(voidpf opaque, voidpf stream) {
UNUSED(opaque);
struct VFile* vf = stream;
return vf->seek(vf, 0, SEEK_CUR);
}
long _vfmzSeek(voidpf opaque, voidpf stream, uLong offset, int origin) {
UNUSED(opaque);
struct VFile* vf = stream;
return vf->seek(vf, offset, origin) < 0;
}
#endif
struct VDir* VDirOpenZip(const char* path, int flags) {
#ifndef USE_LIBZIP
UNUSED(flags);
unzFile z = unzOpen(path);
zlib_filefunc_def ops = {
.zopen_file = _vfmzOpen,
.zread_file = _vfmzRead,
.zwrite_file = 0,
.ztell_file = _vfmzTell,
.zseek_file = _vfmzSeek,
.zclose_file = _vfmzClose,
.zerror_file = _vfmzError,
.opaque = 0
};
unzFile z = unzOpen2(path, &ops);
if (!z) {
return 0;
}
@ -389,6 +455,8 @@ off_t _vfzSeek(struct VFile* vf, off_t offset, int whence) {
case SEEK_END:
pos = vfz->fileSize;
break;
default:
return -1;
}
if (pos < 0 || pos + offset < 0) {