1 files changed, 0 insertions, 637 deletions

diff --git a/src/transports/smart_pkt.c b/src/transports/smart_pkt.c
deleted file mode 100644
index 56b680d28..000000000
--- a/src/transports/smart_pkt.c
+++ /dev/null
@@ -1,637 +0,0 @@
-/*
- * 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 "common.h"
-
-#include "git2/types.h"
-#include "git2/errors.h"
-#include "git2/refs.h"
-#include "git2/revwalk.h"
-
-#include "smart.h"
-#include "util.h"
-#include "netops.h"
-#include "posix.h"
-#include "buffer.h"
-
-#include <ctype.h>
-
-#define PKT_LEN_SIZE 4
-static const char pkt_done_str[] = "0009done\n";
-static const char pkt_flush_str[] = "0000";
-static const char pkt_have_prefix[] = "0032have ";
-static const char pkt_want_prefix[] = "0032want ";
-
-static int flush_pkt(git_pkt **out)
-{
-	git_pkt *pkt;
-
-	pkt = git__malloc(sizeof(git_pkt));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_FLUSH;
-	*out = pkt;
-
-	return 0;
-}
-
-/* the rest of the line will be useful for multi_ack and multi_ack_detailed */
-static int ack_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_ack *pkt;
-
-	pkt = git__calloc(1, sizeof(git_pkt_ack));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-	pkt->type = GIT_PKT_ACK;
-
-	if (git__prefixncmp(line, len, "ACK "))
-		goto out_err;
-	line += 4;
-	len -= 4;
-
-	if (len < GIT_OID_HEXSZ || git_oid_fromstr(&pkt->oid, line) < 0)
-		goto out_err;
-	line += GIT_OID_HEXSZ;
-	len -= GIT_OID_HEXSZ;
-
-	if (len && line[0] == ' ') {
-		line++;
-		len--;
-
-		if (!git__prefixncmp(line, len, "continue"))
-			pkt->status = GIT_ACK_CONTINUE;
-		else if (!git__prefixncmp(line, len, "common"))
-			pkt->status = GIT_ACK_COMMON;
-		else if (!git__prefixncmp(line, len, "ready"))
-			pkt->status = GIT_ACK_READY;
-		else
-			goto out_err;
-	}
-
-	*out = (git_pkt *) pkt;
-
-	return 0;
-
-out_err:
-	git_error_set(GIT_ERROR_NET, "error parsing ACK pkt-line");
-	git__free(pkt);
-	return -1;
-}
-
-static int nak_pkt(git_pkt **out)
-{
-	git_pkt *pkt;
-
-	pkt = git__malloc(sizeof(git_pkt));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_NAK;
-	*out = pkt;
-
-	return 0;
-}
-
-static int comment_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_comment *pkt;
-	size_t alloclen;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, sizeof(git_pkt_comment), len);
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, alloclen, 1);
-	pkt = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_COMMENT;
-	memcpy(pkt->comment, line, len);
-	pkt->comment[len] = '\0';
-
-	*out = (git_pkt *) pkt;
-
-	return 0;
-}
-
-static int err_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_err *pkt = NULL;
-	size_t alloclen;
-
-	/* Remove "ERR " from the line */
-	if (git__prefixncmp(line, len, "ERR "))
-		goto out_err;
-	line += 4;
-	len -= 4;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, sizeof(git_pkt_progress), len);
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, alloclen, 1);
-	pkt = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt);
-	pkt->type = GIT_PKT_ERR;
-	pkt->len = len;
-
-	memcpy(pkt->error, line, len);
-	pkt->error[len] = '\0';
-
-	*out = (git_pkt *) pkt;
-
-	return 0;
-
-out_err:
-	git_error_set(GIT_ERROR_NET, "error parsing ERR pkt-line");
-	git__free(pkt);
-	return -1;
-}
-
-static int data_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_data *pkt;
-	size_t alloclen;
-
-	line++;
-	len--;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, sizeof(git_pkt_progress), len);
-	pkt = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_DATA;
-	pkt->len = len;
-	memcpy(pkt->data, line, len);
-
-	*out = (git_pkt *) pkt;
-
-	return 0;
-}
-
-static int sideband_progress_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_progress *pkt;
-	size_t alloclen;
-
-	line++;
-	len--;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, sizeof(git_pkt_progress), len);
-	pkt = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_PROGRESS;
-	pkt->len = len;
-	memcpy(pkt->data, line, len);
-
-	*out = (git_pkt *) pkt;
-
-	return 0;
-}
-
-static int sideband_error_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_err *pkt;
-	size_t alloc_len;
-
-	line++;
-	len--;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloc_len, sizeof(git_pkt_err), len);
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloc_len, alloc_len, 1);
-	pkt = git__malloc(alloc_len);
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->type = GIT_PKT_ERR;
-	pkt->len = (int)len;
-	memcpy(pkt->error, line, len);
-	pkt->error[len] = '\0';
-
-	*out = (git_pkt *)pkt;
-
-	return 0;
-}
-
-/*
- * Parse an other-ref line.
- */
-static int ref_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_ref *pkt;
-	size_t alloclen;
-
-	pkt = git__calloc(1, sizeof(git_pkt_ref));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-	pkt->type = GIT_PKT_REF;
-
-	if (len < GIT_OID_HEXSZ || git_oid_fromstr(&pkt->head.oid, line) < 0)
-		goto out_err;
-	line += GIT_OID_HEXSZ;
-	len -= GIT_OID_HEXSZ;
-
-	if (git__prefixncmp(line, len, " "))
-		goto out_err;
-	line++;
-	len--;
-
-	if (!len)
-		goto out_err;
-
-	if (line[len - 1] == '\n')
-		--len;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, len, 1);
-	pkt->head.name = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt->head.name);
-
-	memcpy(pkt->head.name, line, len);
-	pkt->head.name[len] = '\0';
-
-	if (strlen(pkt->head.name) < len)
-		pkt->capabilities = strchr(pkt->head.name, '\0') + 1;
-
-	*out = (git_pkt *)pkt;
-	return 0;
-
-out_err:
-	git_error_set(GIT_ERROR_NET, "error parsing REF pkt-line");
-	if (pkt)
-		git__free(pkt->head.name);
-	git__free(pkt);
-	return -1;
-}
-
-static int ok_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_ok *pkt;
-	size_t alloc_len;
-
-	pkt = git__malloc(sizeof(*pkt));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-	pkt->type = GIT_PKT_OK;
-
-	if (git__prefixncmp(line, len, "ok "))
-		goto out_err;
-	line += 3;
-	len -= 3;
-
-	if (len && line[len - 1] == '\n')
-		--len;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloc_len, len, 1);
-	pkt->ref = git__malloc(alloc_len);
-	GIT_ERROR_CHECK_ALLOC(pkt->ref);
-
-	memcpy(pkt->ref, line, len);
-	pkt->ref[len] = '\0';
-
-	*out = (git_pkt *)pkt;
-	return 0;
-
-out_err:
-	git_error_set(GIT_ERROR_NET, "error parsing OK pkt-line");
-	git__free(pkt);
-	return -1;
-}
-
-static int ng_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_ng *pkt;
-	const char *ptr, *eol;
-	size_t alloclen;
-
-	pkt = git__malloc(sizeof(*pkt));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-
-	pkt->ref = NULL;
-	pkt->type = GIT_PKT_NG;
-
-	eol = line + len;
-
-	if (git__prefixncmp(line, len, "ng "))
-		goto out_err;
-	line += 3;
-
-	if (!(ptr = memchr(line, ' ', eol - line)))
-		goto out_err;
-	len = ptr - line;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, len, 1);
-	pkt->ref = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt->ref);
-
-	memcpy(pkt->ref, line, len);
-	pkt->ref[len] = '\0';
-
-	line = ptr + 1;
-	if (line >= eol)
-		goto out_err;
-
-	if (!(ptr = memchr(line, '\n', eol - line)))
-		goto out_err;
-	len = ptr - line;
-
-	GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, len, 1);
-	pkt->msg = git__malloc(alloclen);
-	GIT_ERROR_CHECK_ALLOC(pkt->msg);
-
-	memcpy(pkt->msg, line, len);
-	pkt->msg[len] = '\0';
-
-	*out = (git_pkt *)pkt;
-	return 0;
-
-out_err:
-	git_error_set(GIT_ERROR_NET, "invalid packet line");
-	git__free(pkt->ref);
-	git__free(pkt);
-	return -1;
-}
-
-static int unpack_pkt(git_pkt **out, const char *line, size_t len)
-{
-	git_pkt_unpack *pkt;
-
-	pkt = git__malloc(sizeof(*pkt));
-	GIT_ERROR_CHECK_ALLOC(pkt);
-	pkt->type = GIT_PKT_UNPACK;
-
-	if (!git__prefixncmp(line, len, "unpack ok"))
-		pkt->unpack_ok = 1;
-	else
-		pkt->unpack_ok = 0;
-
-	*out = (git_pkt *)pkt;
-	return 0;
-}
-
-static int parse_len(size_t *out, const char *line, size_t linelen)
-{
-	char num[PKT_LEN_SIZE + 1];
-	int i, k, error;
-	int32_t len;
-	const char *num_end;
-
-	/* Not even enough for the length */
-	if (linelen < PKT_LEN_SIZE)
-		return GIT_EBUFS;
-
-	memcpy(num, line, PKT_LEN_SIZE);
-	num[PKT_LEN_SIZE] = '\0';
-
-	for (i = 0; i < PKT_LEN_SIZE; ++i) {
-		if (!isxdigit(num[i])) {
-			/* Make sure there are no special characters before passing to error message */
-			for (k = 0; k < PKT_LEN_SIZE; ++k) {
-				if(!isprint(num[k])) {
-					num[k] = '.';
-				}
-			}
-
-			git_error_set(GIT_ERROR_NET, "invalid hex digit in length: '%s'", num);
-			return -1;
-		}
-	}
-
-	if ((error = git__strntol32(&len, num, PKT_LEN_SIZE, &num_end, 16)) < 0)
-		return error;
-
-	if (len < 0)
-		return -1;
-
-	*out = (size_t) len;
-	return 0;
-}
-
-/*
- * As per the documentation, the syntax is:
- *
- * pkt-line	= data-pkt / flush-pkt
- * data-pkt	= pkt-len pkt-payload
- * pkt-len		= 4*(HEXDIG)
- * pkt-payload = (pkt-len -4)*(OCTET)
- * flush-pkt	= "0000"
- *
- * Which means that the first four bytes are the length of the line,
- * in ASCII hexadecimal (including itself)
- */
-
-int git_pkt_parse_line(
-	git_pkt **pkt, const char **endptr, const char *line, size_t linelen)
-{
-	int error;
-	size_t len;
-
-	if ((error = parse_len(&len, line, linelen)) < 0) {
-		/*
-		 * If we fail to parse the length, it might be
-		 * because the server is trying to send us the
-		 * packfile already or because we do not yet have
-		 * enough data.
-		 */
-		if (error == GIT_EBUFS)
-			;
-		else if (!git__prefixncmp(line, linelen, "PACK"))
-			git_error_set(GIT_ERROR_NET, "unexpected pack file");
-		else
-			git_error_set(GIT_ERROR_NET, "bad packet length");
-		return error;
-	}
-
-	/*
-	 * Make sure there is enough in the buffer to satisfy
-	 * this line.
-	 */
-	if (linelen < len)
-		return GIT_EBUFS;
-
-	/*
-	 * The length has to be exactly 0 in case of a flush
-	 * packet or greater than PKT_LEN_SIZE, as the decoded
-	 * length includes its own encoded length of four bytes.
-	 */
-	if (len != 0 && len < PKT_LEN_SIZE)
-		return GIT_ERROR;
-
-	line += PKT_LEN_SIZE;
-	/*
-	 * The Git protocol does not specify empty lines as part
-	 * of the protocol. Not knowing what to do with an empty
-	 * line, we should return an error upon hitting one.
-	 */
-	if (len == PKT_LEN_SIZE) {
-		git_error_set_str(GIT_ERROR_NET, "Invalid empty packet");
-		return GIT_ERROR;
-	}
-
-	if (len == 0) { /* Flush pkt */
-		*endptr = line;
-		return flush_pkt(pkt);
-	}
-
-	len -= PKT_LEN_SIZE; /* the encoded length includes its own size */
-
-	if (*line == GIT_SIDE_BAND_DATA)
-		error = data_pkt(pkt, line, len);
-	else if (*line == GIT_SIDE_BAND_PROGRESS)
-		error = sideband_progress_pkt(pkt, line, len);
-	else if (*line == GIT_SIDE_BAND_ERROR)
-		error = sideband_error_pkt(pkt, line, len);
-	else if (!git__prefixncmp(line, len, "ACK"))
-		error = ack_pkt(pkt, line, len);
-	else if (!git__prefixncmp(line, len, "NAK"))
-		error = nak_pkt(pkt);
-	else if (!git__prefixncmp(line, len, "ERR"))
-		error = err_pkt(pkt, line, len);
-	else if (*line == '#')
-		error = comment_pkt(pkt, line, len);
-	else if (!git__prefixncmp(line, len, "ok"))
-		error = ok_pkt(pkt, line, len);
-	else if (!git__prefixncmp(line, len, "ng"))
-		error = ng_pkt(pkt, line, len);
-	else if (!git__prefixncmp(line, len, "unpack"))
-		error = unpack_pkt(pkt, line, len);
-	else
-		error = ref_pkt(pkt, line, len);
-
-	*endptr = line + len;
-
-	return error;
-}
-
-void git_pkt_free(git_pkt *pkt)
-{
-	if (pkt == NULL) {
-		return;
-	}
-	if (pkt->type == GIT_PKT_REF) {
-		git_pkt_ref *p = (git_pkt_ref *) pkt;
-		git__free(p->head.name);
-		git__free(p->head.symref_target);
-	}
-
-	if (pkt->type == GIT_PKT_OK) {
-		git_pkt_ok *p = (git_pkt_ok *) pkt;
-		git__free(p->ref);
-	}
-
-	if (pkt->type == GIT_PKT_NG) {
-		git_pkt_ng *p = (git_pkt_ng *) pkt;
-		git__free(p->ref);
-		git__free(p->msg);
-	}
-
-	git__free(pkt);
-}
-
-int git_pkt_buffer_flush(git_buf *buf)
-{
-	return git_buf_put(buf, pkt_flush_str, strlen(pkt_flush_str));
-}
-
-static int buffer_want_with_caps(const git_remote_head *head, transport_smart_caps *caps, git_buf *buf)
-{
-	git_buf str = GIT_BUF_INIT;
-	char oid[GIT_OID_HEXSZ +1] = {0};
-	size_t len;
-
-	/* Prefer multi_ack_detailed */
-	if (caps->multi_ack_detailed)
-		git_buf_puts(&str, GIT_CAP_MULTI_ACK_DETAILED " ");
-	else if (caps->multi_ack)
-		git_buf_puts(&str, GIT_CAP_MULTI_ACK " ");
-
-	/* Prefer side-band-64k if the server supports both */
-	if (caps->side_band_64k)
-		git_buf_printf(&str, "%s ", GIT_CAP_SIDE_BAND_64K);
-	else if (caps->side_band)
-		git_buf_printf(&str, "%s ", GIT_CAP_SIDE_BAND);
-
-	if (caps->include_tag)
-		git_buf_puts(&str, GIT_CAP_INCLUDE_TAG " ");
-
-	if (caps->thin_pack)
-		git_buf_puts(&str, GIT_CAP_THIN_PACK " ");
-
-	if (caps->ofs_delta)
-		git_buf_puts(&str, GIT_CAP_OFS_DELTA " ");
-
-	if (git_buf_oom(&str))
-		return -1;
-
-	len = strlen("XXXXwant ") + GIT_OID_HEXSZ + 1 /* NUL */ +
-		 git_buf_len(&str) + 1 /* LF */;
-
-	if (len > 0xffff) {
-		git_error_set(GIT_ERROR_NET,
-			"tried to produce packet with invalid length %" PRIuZ, len);
-		return -1;
-	}
-
-	git_buf_grow_by(buf, len);
-	git_oid_fmt(oid, &head->oid);
-	git_buf_printf(buf,
-		"%04xwant %s %s\n", (unsigned int)len, oid, git_buf_cstr(&str));
-	git_buf_dispose(&str);
-
-	GIT_ERROR_CHECK_ALLOC_BUF(buf);
-
-	return 0;
-}
-
-/*
- * All "want" packets have the same length and format, so what we do
- * is overwrite the OID each time.
- */
-
-int git_pkt_buffer_wants(
-	const git_remote_head * const *refs,
-	size_t count,
-	transport_smart_caps *caps,
-	git_buf *buf)
-{
-	size_t i = 0;
-	const git_remote_head *head;
-
-	if (caps->common) {
-		for (; i < count; ++i) {
-			head = refs[i];
-			if (!head->local)
-				break;
-		}
-
-		if (buffer_want_with_caps(refs[i], caps, buf) < 0)
-			return -1;
-
-		i++;
-	}
-
-	for (; i < count; ++i) {
-		char oid[GIT_OID_HEXSZ];
-
-		head = refs[i];
-		if (head->local)
-			continue;
-
-		git_oid_fmt(oid, &head->oid);
-		git_buf_put(buf, pkt_want_prefix, strlen(pkt_want_prefix));
-		git_buf_put(buf, oid, GIT_OID_HEXSZ);
-		git_buf_putc(buf, '\n');
-		if (git_buf_oom(buf))
-			return -1;
-	}
-
-	return git_pkt_buffer_flush(buf);
-}
-
-int git_pkt_buffer_have(git_oid *oid, git_buf *buf)
-{
-	char oidhex[GIT_OID_HEXSZ + 1];
-
-	memset(oidhex, 0x0, sizeof(oidhex));
-	git_oid_fmt(oidhex, oid);
-	return git_buf_printf(buf, "%s%s\n", pkt_have_prefix, oidhex);
-}
-
-int git_pkt_buffer_done(git_buf *buf)
-{
-	return git_buf_puts(buf, pkt_done_str);
-}