From c8e1e71eb526475dd431443345262c2e5a627831 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nnoll523@gmail.com>
Date: Sat, 23 Oct 2021 11:17:25 -0700
Subject: chore(rename): libn -> base

---
 sys/base/gz.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 sys/base/gz.c

(limited to 'sys/base/gz.c')

diff --git a/sys/base/gz.c b/sys/base/gz.c
new file mode 100644
index 0000000..d84397f
--- /dev/null
+++ b/sys/base/gz.c
@@ -0,0 +1,108 @@
+#include <u.h>
+#include <base.h>
+
+#include <zlib.h>
+
+// -----------------------------------------------------------------------
+// interface implementations
+
+/* actual interfaces */
+io·Reader     gz·Reader     = (io·Reader){ gz·read };
+io·Peeker     gz·Peeker     = (io·Peeker){ gz·getbyte, gz·ungetbyte };
+io·Seeker     gz·Seeker     = (io·Seeker){ gz·seek, gz·tell };
+io·PeekReader gz·Peekreader = (io·PeekReader){ gz·read, gz·getbyte, gz·ungetbyte };
+
+io·Writer     gz·Writer     = (io·Writer){ gz·write };
+io·Putter     gz·Putter     = (io·Putter){ gz·putbyte, gz·putstring };
+io·PutWriter  gz·PutWriter  = (io·PutWriter){ gz·write, gz·putbyte, gz·putstring };
+
+io·ReadWriter gz·ReadWriter = (io·ReadWriter){ gz·read, gz·write };
+
+// -----------------------------------------------------------------------
+// functions implementations
+
+gz·Stream*
+gz·open(byte *path, byte *mode)
+{
+    return gzopen(path, mode);
+}
+
+error
+gz·close(gz·Stream* s)
+{
+    return gzclose(s);
+}
+
+int
+gz·read(gz·Stream *s, int sz, int n, void* buf)
+{
+    return gzread(s, buf, n*sz);
+}
+
+int
+gz·readln(gz·Stream *s, int n, byte *buf)
+{
+    byte* b;
+    b = gzgets(s, buf, n);
+
+    return strlen(b);
+}
+
+byte
+gz·getbyte(gz·Stream *s)
+{
+    // NOTE: Can't call macro
+    byte b[2];
+    gzread(s, b, 1);
+
+    return b[0];
+}
+
+error
+gz·ungetbyte(gz·Stream *s, byte c)
+{
+    return gzungetc(c, s);
+}
+
+int
+gz·write(gz·Stream *s, int sz, int n, void* buf)
+{
+    return gzwrite(s, buf, n*sz);
+}
+
+error
+gz·putbyte(gz·Stream *s, byte c)
+{
+    return gzputc(s, c);
+}
+
+error
+gz·putstring(gz·Stream *s, byte *str)
+{
+    return gzputs(s, str);
+}
+
+int
+gz·printf(gz·Stream *s, byte *fmt, ...)
+{
+    error err;
+
+    va_list args;
+    va_start(args, fmt);
+    err = gzprintf(s, fmt, args);
+    va_end(args);
+
+    return err;
+}
+
+error
+gz·flush(gz·Stream *s)
+{
+    return gzflush(s, Z_FINISH);
+}
+
+int
+gz·seek(gz·Stream *s, long off, enum SeekPos whence)
+{
+    return gzseek(s, off, whence);
+}
-- 
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