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-rw-r--r--util/assuan-client.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/util/assuan-client.c b/util/assuan-client.c
deleted file mode 100644
index 0467f6dc5..000000000
--- a/util/assuan-client.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/* assuan-client.c - client functions
- * Copyright (C) 2001, 2002 Free Software Foundation, Inc.
- * Copyright (C) 2005 Free Software Foundation, Inc.
- *
- * This file is part of Assuan.
- *
- * Assuan is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * Assuan is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * USA.
- */
-
-/* Please note that this is a stripped down and modified version of
- the orginal Assuan code from libassuan. */
-
-#include <config.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <assert.h>
-#include <string.h>
-
-#include "assuan-defs.h"
-
-#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
- *(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
-#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
-
-
-assuan_error_t
-_assuan_read_from_server (assuan_context_t ctx, int *okay, int *off)
-{
- char *line;
- int linelen;
- assuan_error_t rc;
-
- *okay = 0;
- *off = 0;
- do
- {
- rc = _assuan_read_line (ctx);
- if (rc)
- return rc;
- line = ctx->inbound.line;
- linelen = ctx->inbound.linelen;
- }
- while (*line == '#' || !linelen);
-
- if (linelen >= 1
- && line[0] == 'D' && line[1] == ' ')
- {
- *okay = 2; /* data line */
- *off = 2;
- }
- else if (linelen >= 1
- && line[0] == 'S'
- && (line[1] == '\0' || line[1] == ' '))
- {
- *okay = 4;
- *off = 1;
- while (line[*off] == ' ')
- ++*off;
- }
- else if (linelen >= 2
- && line[0] == 'O' && line[1] == 'K'
- && (line[2] == '\0' || line[2] == ' '))
- {
- *okay = 1;
- *off = 2;
- while (line[*off] == ' ')
- ++*off;
- }
- else if (linelen >= 3
- && line[0] == 'E' && line[1] == 'R' && line[2] == 'R'
- && (line[3] == '\0' || line[3] == ' '))
- {
- *okay = 0;
- *off = 3;
- while (line[*off] == ' ')
- ++*off;
- }
- else if (linelen >= 7
- && line[0] == 'I' && line[1] == 'N' && line[2] == 'Q'
- && line[3] == 'U' && line[4] == 'I' && line[5] == 'R'
- && line[6] == 'E'
- && (line[7] == '\0' || line[7] == ' '))
- {
- *okay = 3;
- *off = 7;
- while (line[*off] == ' ')
- ++*off;
- }
- else if (linelen >= 3
- && line[0] == 'E' && line[1] == 'N' && line[2] == 'D'
- && (line[3] == '\0' || line[3] == ' '))
- {
- *okay = 5; /* end line */
- *off = 3;
- }
- else
- rc = ASSUAN_Invalid_Response;
- return rc;
-}
-
-
-
-assuan_error_t
-assuan_transact (assuan_context_t ctx,
- const char *command,
- assuan_error_t (*data_cb)(void *, const void *, size_t),
- void *data_cb_arg,
- assuan_error_t (*inquire_cb)(void*, const char *),
- void *inquire_cb_arg,
- assuan_error_t (*status_cb)(void*, const char *),
- void *status_cb_arg)
-{
- return assuan_transact2 (ctx, command,
- data_cb, data_cb_arg,
- inquire_cb, inquire_cb_arg,
- status_cb, status_cb_arg,
- NULL, NULL);
-}
-
-
-/**
- * assuan_transact2:
- * @ctx: The Assuan context
- * @command: Coimmand line to be send to server
- * @data_cb: Callback function for data lines
- * @data_cb_arg: first argument passed to @data_cb
- * @inquire_cb: Callback function for a inquire response
- * @inquire_cb_arg: first argument passed to @inquire_cb
- * @status_cb: Callback function for a status response
- * @status_cb_arg: first argument passed to @status_cb
- * @okay_cb: Callback function for the final OK response
- * @okay_cb_arg: first argument passed to @okay_cb
- *
- * FIXME: Write documentation
- *
- * Return value: 0 on success or error code. The error code may be
- * the one one returned by the server in error lines or from the
- * callback functions.
- **/
-assuan_error_t
-assuan_transact2 (assuan_context_t ctx,
- const char *command,
- assuan_error_t (*data_cb)(void *, const void *, size_t),
- void *data_cb_arg,
- assuan_error_t (*inquire_cb)(void*, const char *),
- void *inquire_cb_arg,
- assuan_error_t (*status_cb)(void*, const char *),
- void *status_cb_arg,
- assuan_error_t (*okay_cb)(void*, const char *),
- void *okay_cb_arg)
-{
- int rc, okay, off;
- unsigned char *line;
- int linelen;
-
- rc = assuan_write_line (ctx, command);
- if (rc)
- return rc;
-
- if (*command == '#' || !*command)
- return 0; /* Don't expect a response for a comment line. */
-
- again:
- rc = _assuan_read_from_server (ctx, &okay, &off);
- if (rc)
- return rc; /* error reading from server */
-
- line = ctx->inbound.line + off;
- linelen = ctx->inbound.linelen - off;
-
- if (!okay)
- {
- rc = atoi (line);
- if (rc < 100)
- rc = ASSUAN_Server_Fault;
- }
- else if (okay == 1) /* Received OK. */
- {
- if (okay_cb)
- {
- rc = okay_cb (okay_cb_arg, line);
- /* We better wipe out the buffer after processing it. This
- is no real guarantee that it won't get swapped out but at
- least for the standard cases we can make sure that a
- passphrase returned with the OK line is rendered
- unreadable. In fact the current Assuan interface suffers
- from the problem that it is not possible to do assuan I/O
- through secure memory. There is no easy solution given
- the current implementation but we need to address it
- sooner or later. The problem was introduced with
- gpg-agent's GET_PASPHRASE command but it might also make
- sense to have a way to convey sessions keys through
- secured memory. Note that the old implementation in gpg
- for accessing the passphrase in fact used secure memory
- but had the drawback of using a limited and not fully
- conforming Assuan implementation - given that pinentry
- and gpg-agent neither use secured memory for Assuan I/O,
- it is negligible to drop the old implementation in gpg's
- passphrase.c and use the wipememory workaround here. */
- memset (line, 0, strlen (line));
- }
- }
- else if (okay == 2)
- {
- if (!data_cb)
- rc = ASSUAN_No_Data_Callback;
- else
- {
- unsigned char *s, *d;
-
- for (s=d=line; linelen; linelen--)
- {
- if (*s == '%' && linelen > 2)
- { /* handle escaping */
- s++;
- *d++ = xtoi_2 (s);
- s += 2;
- linelen -= 2;
- }
- else
- *d++ = *s++;
- }
- *d = 0; /* add a hidden string terminator */
- rc = data_cb (data_cb_arg, line, d - line);
- if (!rc)
- goto again;
- }
- }
- else if (okay == 3)
- {
- if (!inquire_cb)
- {
- assuan_write_line (ctx, "END"); /* get out of inquire mode */
- _assuan_read_from_server (ctx, &okay, &off); /* dummy read */
- rc = ASSUAN_No_Inquire_Callback;
- }
- else
- {
- rc = inquire_cb (inquire_cb_arg, line);
- if (!rc)
- rc = assuan_send_data (ctx, NULL, 0); /* flush and send END */
- if (!rc)
- goto again;
- }
- }
- else if (okay == 4)
- {
- if (status_cb)
- rc = status_cb (status_cb_arg, line);
- if (!rc)
- goto again;
- }
- else if (okay == 5)
- {
- if (!data_cb)
- rc = ASSUAN_No_Data_Callback;
- else
- {
- rc = data_cb (data_cb_arg, NULL, 0);
- if (!rc)
- goto again;
- }
- }
-
- return rc;
-}
-
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