1 files changed, 124 insertions, 0 deletions
diff --git a/src/libgit2/netops.c b/src/libgit2/netops.c
new file mode 100644
index 000000000..00640c600
--- /dev/null
+++ b/src/libgit2/netops.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "netops.h"
+
+#include <ctype.h>
+#include "git2/errors.h"
+
+#include "posix.h"
+#include "str.h"
+#include "runtime.h"
+
+int gitno_recv(gitno_buffer *buf)
+{
+	return buf->recv(buf);
+}
+
+void gitno_buffer_setup_callback(
+	gitno_buffer *buf,
+	char *data,
+	size_t len,
+	int (*recv)(gitno_buffer *buf), void *cb_data)
+{
+	memset(data, 0x0, len);
+	buf->data = data;
+	buf->len = len;
+	buf->offset = 0;
+	buf->recv = recv;
+	buf->cb_data = cb_data;
+}
+
+static int recv_stream(gitno_buffer *buf)
+{
+	git_stream *io = (git_stream *) buf->cb_data;
+	size_t readlen = buf->len - buf->offset;
+	ssize_t ret;
+
+	readlen = min(readlen, INT_MAX);
+
+	ret = git_stream_read(io, buf->data + buf->offset, (int)readlen);
+	if (ret < 0)
+		return -1;
+
+	buf->offset += ret;
+	return (int)ret;
+}
+
+void gitno_buffer_setup_fromstream(git_stream *st, gitno_buffer *buf, char *data, size_t len)
+{
+	memset(data, 0x0, len);
+	buf->data = data;
+	buf->len = len;
+	buf->offset = 0;
+	buf->recv = recv_stream;
+	buf->cb_data = st;
+}
+
+/* Consume up to ptr and move the rest of the buffer to the beginning */
+int gitno_consume(gitno_buffer *buf, const char *ptr)
+{
+	size_t consumed;
+
+	GIT_ASSERT(ptr - buf->data >= 0);
+	GIT_ASSERT(ptr - buf->data <= (int) buf->len);
+
+	consumed = ptr - buf->data;
+
+	memmove(buf->data, ptr, buf->offset - consumed);
+	memset(buf->data + buf->offset, 0x0, buf->len - buf->offset);
+	buf->offset -= consumed;
+
+	return 0;
+}
+
+/* Consume const bytes and move the rest of the buffer to the beginning */
+void gitno_consume_n(gitno_buffer *buf, size_t cons)
+{
+	memmove(buf->data, buf->data + cons, buf->len - buf->offset);
+	memset(buf->data + cons, 0x0, buf->len - buf->offset);
+	buf->offset -= cons;
+}
+
+/* Match host names according to RFC 2818 rules */
+int gitno__match_host(const char *pattern, const char *host)
+{
+	for (;;) {
+		char c = git__tolower(*pattern++);
+
+		if (c == '\0')
+			return *host ? -1 : 0;
+
+		if (c == '*') {
+			c = *pattern;
+			/* '*' at the end matches everything left */
+			if (c == '\0')
+				return 0;
+
+	/*
+	 * We've found a pattern, so move towards the next matching
+	 * char. The '.' is handled specially because wildcards aren't
+	 * allowed to cross subdomains.
+	 */
+
+			while(*host) {
+				char h = git__tolower(*host);
+				if (c == h)
+					return gitno__match_host(pattern, host++);
+				if (h == '.')
+					return gitno__match_host(pattern, host);
+				host++;
+			}
+			return -1;
+		}
+
+		if (c != git__tolower(*host++))
+			return -1;
+	}
+
+	return -1;
+}