sml_base64.c
/*
* libsyncml - A syncml protocol implementation
* Copyright (C) 2005 Armin Bauer <armin.bauer@opensync.org>
* Copyright (C) 2008 Michael Bell <michael.bell@opensync.org>
*
* This library 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.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "syncml.h"
#include "sml_error.h"
#include "sml_error_internals.h"
#include "syncml_internals.h"
static SmlBool _smlBase64DecodeBinary(const char *input, unsigned int size, char **output, unsigned int *outsize, SmlError **error);
static SmlBool _smlBase64EncodeBinary(const char *input, unsigned int size, char **output, SmlError **error);
/* FIXME: DEPRECATED*/
SmlBool smlBase64Decode(const char *input, char **output, unsigned int *outsize, SmlError **error)
{
smlTrace(TRACE_ENTRY, "%s(%p, %p, %p, %p)", __func__, input, output, outsize, error);
CHECK_ERROR_REF
smlAssert(output);
smlAssert(outsize);
if (!input) {
*output = NULL;
*outsize = 0;
goto out;
}
if (!_smlBase64DecodeBinary(input, strlen(input), output, outsize, error))
goto error;
out:
smlTrace(TRACE_EXIT, "%s", __func__);
return TRUE;
error:
smlTrace(TRACE_EXIT_ERROR, "%s: %s", __func__, smlErrorPrint(error));
return FALSE;
}
/* FIXME: DEPRECATED*/
SmlBool smlBase64DecodeBinary(const char *input, unsigned int size, char **output, unsigned int *outsize, SmlError **error)
{
return _smlBase64DecodeBinary(input, size, output, outsize, error);
}
/* The only reason for this internal function is
* to avoid compiler warnings during the normal build process
* even if the whole base64 API is deprecated.
*/
static SmlBool _smlBase64DecodeBinary(const char *input, unsigned int size, char **output, unsigned int *outsize, SmlError **error)
{
smlTrace(TRACE_ENTRY, "%s(%p, %i, %p, %p, %p)", __func__, input, size, output, outsize, error);
CHECK_ERROR_REF
if (!input || !size) {
*output = NULL;
*outsize = 0;
goto out;
}
size_t length = 0;
*output = (char *) g_base64_decode(input, &length);
if (length < 1) {
smlErrorSet(error, SML_ERROR_GENERIC, "Invalid base64 input");
goto error;
}
*outsize = length;
/* This is some kind of special for libsyncml.
* We have to add a padding NULL byte.
*/
char *result = smlTryMalloc0(*outsize + 1, error);
if (result == NULL)
goto error;
memcpy(result, *output, *outsize);
g_free(*output);
*output = result;
*outsize = *outsize + 1;
out:
smlTrace(TRACE_EXIT, "%s", __func__);
return TRUE;
error:
*output = NULL;
*outsize = 0;
smlTrace(TRACE_EXIT_ERROR, "%s: %s", __func__, smlErrorPrint(error));
return FALSE;
}
/* FIXME: DEPRECATED*/
SmlBool smlBase64Encode(const char *input, char **output, SmlError **error)
{
smlTrace(TRACE_ENTRY, "%s(%p, %p, %p)", __func__, input, output, error);
CHECK_ERROR_REF
smlAssert(output);
if (!input) {
*output = NULL;
smlTrace(TRACE_EXIT, "%s", __func__);
return TRUE;
}
if (_smlBase64EncodeBinary(input, strlen(input), output, error)) {
smlTrace(TRACE_EXIT, "%s", __func__);
return TRUE;
}
smlTrace(TRACE_EXIT_ERROR, "%s: %s", __func__, smlErrorPrint(error));
return FALSE;
}
/* FIXME: DEPRECATED*/
SmlBool smlBase64EncodeBinary(const char *input, unsigned int size, char **output, SmlError **error)
{
return _smlBase64EncodeBinary(input, size, output, error);
}
/* The only reason for this internal function is
* to avoid compiler warnings during the normal build process
* even if the whole base64 API is deprecated.
*/
static SmlBool _smlBase64EncodeBinary(const char *input, unsigned int size, char **output, SmlError **error)
{
smlTrace(TRACE_ENTRY, "%s(%p, %i, %p, %p)", __func__, input, size, output, error);
CHECK_ERROR_REF
smlAssert(output);
if (!input) {
*output = NULL;
goto out;
}
*output = g_base64_encode((const unsigned char *) input, size);
if (!*output) {
smlErrorSet(error, SML_ERROR_GENERIC, "Base64 encoding failed.");
goto error;
}
out:
smlTrace(TRACE_EXIT, "%s", __func__);
return TRUE;
error:
smlTrace(TRACE_EXIT_ERROR, "%s: %s", __func__, smlErrorPrint(error));
return FALSE;
}
smlErrorPrint
const char * smlErrorPrint(SmlError **error)
Returns the message of the error.
Definition: sml_error.c:299
smlTrace
void smlTrace(SmlTraceType type, const char *message,...)
Used for tracing the application.
Definition: sml_support.c:120
smlTryMalloc0
void * smlTryMalloc0(long n_bytes, SmlError **error)
Safely mallocs.
Definition: sml_support.c:335
smlErrorSet
void smlErrorSet(SmlError **error, SmlErrorType type, const char *format,...)
Sets the error.
Definition: sml_error.c:355
SmlError
Represent an error.
Definition: sml_error_internals.h:29