1 files changed, 0 insertions, 243 deletions
diff --git a/sys/base/flate.c b/sys/base/flate.c
deleted file mode 100644
index 5930fd1..0000000
--- a/sys/base/flate.c
+++ /dev/null
@@ -1,243 +0,0 @@
-#include <u.h>
-#include <base.h>
-
-#include <zlib.h>
-
-typedef struct buffer
-{
-    union {
-        struct z_stream_s; 
-        z_stream z;
-    };
-
-    ubyte buf[4098];
-} buffer;
-
-// -----------------------------------------------------------------------
-// Reading
-
-typedef struct flate·Reader
-{
-    io·Reader rdr;
-    void*     impl;
-
-    union {
-        struct buffer;
-        buffer b;
-    };
-} flate·Reader;
-
-flate·Reader*
-flate·openreader(io·Reader rdr, void* r, mem·Allocator mem, void* m)
-{
-    error      err;
-    flate·Reader *zrdr;
-
-    zrdr = mem.alloc(m, 1, sizeof(*zrdr));
-
-    zrdr->zalloc    = (void *(*)(void *, unsigned int, unsigned int))mem.alloc;
-    zrdr->zfree     = mem.free;
-    zrdr->opaque    = m;
-    zrdr->avail_in  = rdr.read(r, 1, arrlen(zrdr->buf), zrdr->buf);
-    zrdr->next_in   = zrdr->buf;
-
-    err = inflateInit(&zrdr->b.z);
-
-    switch (err) {
-    case Z_OK:
-        return zrdr;
-
-    case Z_MEM_ERROR:
-        errorf("zlib: not enough memory");
-        goto ERROR;
-
-    case Z_VERSION_ERROR:
-        errorf("zlib: incompatible version");
-        goto ERROR;
-
-    case Z_STREAM_ERROR:
-        errorf("zlib: incorrect input parameters");
-        goto ERROR;
-
-    default:
-        errorf("zlib: unrecognized error code");
-    }
-ERROR:
-    errorf("zlib: msg: %s", zrdr->msg);
-    mem.free(m, zrdr);
-    return nil;
-}
-
-error
-flate·closereader(flate·Reader *rdr)
-{
-    int err;
-    flate·Reader zrdr;
-
-    zrdr = *rdr;
-    err = inflateEnd(&zrdr.b.z);
-    if (err != Z_OK) {
-        errorf("zlib: failed to cleanup");
-        return err;
-    }
-    rdr->zfree(rdr->opaque, rdr);
-
-    return 0;
-}
-
-int
-flate·read(flate·Reader *rdr, int sz, int n, void *buf)
-{
-    int r;
-    int err;
-    flate·Reader zrdr;
-
-    zrdr = *rdr;
-    zrdr.next_out  = buf;
-    zrdr.avail_out = n*sz;
-
-READ:
-    err = inflate(&zrdr.b.z, Z_STREAM_END);
-    switch (err) {
-    case Z_OK:
-        return n;
-
-    case Z_STREAM_END:
-        r  = zrdr.next_out - (ubyte*)buf;
-        n -= r;
-        zrdr.avail_in = zrdr.rdr.read(zrdr.impl, 1, arrlen(zrdr.buf), zrdr.buf);
-        if (!zrdr.avail_in) {
-            return r;
-        }
-        zrdr.next_in  = zrdr.buf;
-        goto READ;
-
-    case Z_NEED_DICT:
-        errorf("zlib: need input dictionary");
-        goto ERROR;
-
-    case Z_STREAM_ERROR:
-        errorf("zlib: inconsistent stream structure");
-        goto ERROR;
-    }
-ERROR:
-    flate·closereader(rdr);
-    return -1;
-}
-
-// -----------------------------------------------------------------------
-// Writing
-
-struct flate·Writer
-{
-    io·Writer wtr;
-    void*     impl;
-
-    union {
-        struct buffer;
-        buffer b;
-    };
-};
-
-flate·Writer*
-flate·openwriter(io·Writer wtr, void* w, mem·Allocator mem, void* m)
-{
-    error      err;
-    flate·Writer *zwtr;
-
-    zwtr = mem.alloc(m, 1, sizeof(*zwtr));
-    zwtr->zalloc   = (void *(*)(void *, unsigned int, unsigned int))mem.alloc;
-    zwtr->zfree    = mem.free;
-    zwtr->opaque   = m;
-    zwtr->avail_in = 0;
-
-    err = deflateInit(&zwtr->b.z, Z_DEFAULT_COMPRESSION);
-
-    switch (err) {
-    case Z_OK:
-        return zwtr;
-
-    case Z_MEM_ERROR:
-        errorf("zlib: not enough memory");
-        goto ERROR;
-
-    case Z_VERSION_ERROR:
-        errorf("zlib: incompatible version");
-        goto ERROR;
-
-    case Z_STREAM_ERROR:
-        errorf("zlib: incorrect compression level");
-        goto ERROR;
-
-    default:
-        errorf("zlib: unrecognized error code");
-    }
-ERROR:
-    errorf("zlib: msg: %s", zwtr->msg);
-    mem.free(m, zwtr);
-    return nil;
-}
-
-error
-flate·closewriter(flate·Writer *wtr)
-{
-    int err;
-    flate·Writer zwtr;
-
-    zwtr = *wtr;
-    err = deflateEnd(&zwtr.b.z);
-    if (err != Z_OK) {
-        errorf("zlib: failed to cleanup");
-        return err;
-    }
-    zwtr.zfree(zwtr.opaque, wtr);
-
-    return 0;
-}
-
-int
-flate·write(flate·Writer *wtr, int sz, int n, void *buf)
-{
-    int r;
-    int err;
-    flate·Writer zwtr;
-
-    zwtr = *wtr;
-    zwtr.next_out  = buf;
-DEFLATE:
-    zwtr.avail_out = n*sz;
-    err = deflate(&zwtr.z, Z_NO_FLUSH);
-
-    switch (err) {
-    case Z_STREAM_END:
-        return n;
-
-    case Z_OK:
-        r  = (zwtr.next_out - (ubyte*)buf)/sz;
-        n -= r;
-        if (!n) {
-            return r;
-        }
-        buf += n;
-        goto DEFLATE;
-
-    case Z_STREAM_ERROR:
-        errorf("zlib: bad input");
-        goto ERROR;
-
-    case Z_BUF_ERROR:
-        if (!zwtr.avail_in) {
-            zwtr.avail_in += zwtr.wtr.write(zwtr.impl, 1, arrlen(zwtr.buf), buf);
-            if (!zwtr.avail_in) {
-                errorf("reader: failed read");
-                goto ERROR;
-            }
-            goto DEFLATE;
-        }
-    }
-
-    return 0;
-ERROR:
-    errorf("zlib: %s", zwtr.msg);
-    return -1;
-}