/* Copyright information is at end of file */
#include "xmlrpc_config.h"
#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "bool.h"
#include "c_util.h"
#include "mallocvar.h"
#include "stdargx.h"
#include "xmlrpc-c/base.h"
#include "xmlrpc-c/base_int.h"
#include "xmlrpc-c/string_int.h"
/*=========================================================================
** Creating XML-RPC values.
**=========================================================================
** Build new XML-RPC values from a format string. This code is heavily
** inspired by Py_BuildValue from Python 1.5.2. In particular, our
** particular abuse of the va_list data type is copied from the equivalent
** Python code in modsupport.c. Since Python is portable, our code should
** (in theory) also be portable.
*/
static void
getString(xmlrpc_env * const envP,
const char ** const formatP,
va_listx * const argsP,
xmlrpc_value ** const valPP) {
const char * str;
unsigned int len;
str = (const char*) va_arg(argsP->v, char*);
if (**formatP == '#') {
(*formatP)++;
len = (size_t) va_arg(argsP->v, size_t);
} else
len = strlen(str);
*valPP = xmlrpc_string_new_lp(envP, len, str);
}
static void
getWideString(xmlrpc_env * const envP ATTR_UNUSED,
const char ** const formatP ATTR_UNUSED,
va_listx * const argsP ATTR_UNUSED,
xmlrpc_value ** const valPP ATTR_UNUSED) {
#if HAVE_UNICODE_WCHAR
wchar_t *wcs;
size_t len;
wcs = (wchar_t*) va_arg(argsP->v, wchar_t*);
if (**formatP == '#') {
(*formatP)++;
len = (size_t) va_arg(argsP->v, size_t);
} else
len = wcslen(wcs);
*valPP = xmlrpc_string_w_new_lp(envP, len, wcs);
#endif /* HAVE_UNICODE_WCHAR */
}
static void
getBase64(xmlrpc_env * const envP,
va_listx * const argsP,
xmlrpc_value ** const valPP) {
unsigned char * value;
size_t length;
value = (unsigned char*) va_arg(argsP->v, unsigned char*);
length = (size_t) va_arg(argsP->v, size_t);
*valPP = xmlrpc_base64_new(envP, length, value);
}
static void
getValue(xmlrpc_env * const envP,
const char** const format,
va_listx * const argsP,
xmlrpc_value ** const valPP);
static void
getArray(xmlrpc_env * const envP,
const char ** const formatP,
char const delimiter,
va_listx * const argsP,
xmlrpc_value ** const arrayPP) {
xmlrpc_value * arrayP;
arrayP = xmlrpc_array_new(envP);
/* Add items to the array until we hit our delimiter. */
while (**formatP != delimiter && !envP->fault_occurred) {
xmlrpc_value * itemP;
if (**formatP == '\0')
xmlrpc_env_set_fault(
envP, XMLRPC_INTERNAL_ERROR,
"format string ended before closing ')'.");
else {
getValue(envP, formatP, argsP, &itemP);
if (!envP->fault_occurred) {
xmlrpc_array_append_item(envP, arrayP, itemP);
xmlrpc_DECREF(itemP);
}
}
}
if (envP->fault_occurred)
xmlrpc_DECREF(arrayP);
*arrayPP = arrayP;
}
static void
getStructMember(xmlrpc_env * const envP,
const char ** const formatP,
va_listx * const argsP,
xmlrpc_value ** const keyPP,
xmlrpc_value ** const valuePP) {
/* Get the key */
getValue(envP, formatP, argsP, keyPP);
if (!envP->fault_occurred) {
if (**formatP != ':')
xmlrpc_env_set_fault(
envP, XMLRPC_INTERNAL_ERROR,
"format string does not have ':' after a "
"structure member key.");
else {
/* Skip over colon that separates key from value */
(*formatP)++;
/* Get the value */
getValue(envP, formatP, argsP, valuePP);
}
if (envP->fault_occurred)
xmlrpc_DECREF(*keyPP);
}
}
static void
getStruct(xmlrpc_env * const envP,
const char ** const formatP,
char const delimiter,
va_listx * const argsP,
xmlrpc_value ** const structPP) {
xmlrpc_value * structP;
structP = xmlrpc_struct_new(envP);
if (!envP->fault_occurred) {
while (**formatP != delimiter && !envP->fault_occurred) {
xmlrpc_value * keyP;
xmlrpc_value * valueP;
getStructMember(envP, formatP, argsP, &keyP, &valueP);
if (!envP->fault_occurred) {
if (**formatP == ',')
(*formatP)++; /* Skip over the comma */
else if (**formatP == delimiter) {
/* End of the line */
} else
xmlrpc_env_set_fault(
envP, XMLRPC_INTERNAL_ERROR,
"format string does not have ',' or ')' after "
"a structure member");
if (!envP->fault_occurred)
/* Add the new member to the struct. */
xmlrpc_struct_set_value_v(envP, structP, keyP, valueP);
xmlrpc_DECREF(valueP);
xmlrpc_DECREF(keyP);
}
}
if (envP->fault_occurred)
xmlrpc_DECREF(structP);
}
*structPP = structP;
}
static void
mkArrayFromVal(xmlrpc_env * const envP,
xmlrpc_value * const value,
xmlrpc_value ** const valPP) {
if (xmlrpc_value_type(value) != XMLRPC_TYPE_ARRAY)
xmlrpc_env_set_fault(envP, XMLRPC_INTERNAL_ERROR,
"Array format ('A'), non-array xmlrpc_value");
else
xmlrpc_INCREF(value);
*valPP = value;
}
static void
mkStructFromVal(xmlrpc_env * const envP,
xmlrpc_value * const value,
xmlrpc_value ** const valPP) {
if (xmlrpc_value_type(value) != XMLRPC_TYPE_STRUCT)
xmlrpc_env_set_fault(envP, XMLRPC_INTERNAL_ERROR,
"Struct format ('S'), non-struct xmlrpc_value");
else
xmlrpc_INCREF(value);
*valPP = value;
}
static void
getValue(xmlrpc_env * const envP,
const char** const formatP,
va_listx * const argsP,
xmlrpc_value ** const valPP) {
/*----------------------------------------------------------------------------
Get the next value from the list. *formatP points to the specifier
for the next value in the format string (i.e. to the type code
character) and we move *formatP past the whole specifier for the
next value. We read the required arguments from 'argsP'. We return
the value as *valPP with a reference to it.
For example, if *formatP points to the "i" in the string "sis",
we read one argument from 'argsP' and return as *valP an integer whose
value is the argument we read. We advance *formatP to point to the
last 's' and advance 'argsP' to point to the argument that belongs to
that 's'.
-----------------------------------------------------------------------------*/
char const formatChar = *(*formatP)++;
switch (formatChar) {
case 'i':
*valPP =
xmlrpc_int_new(envP, (xmlrpc_int32) va_arg(argsP->v,
xmlrpc_int32));
break;
case 'b':
*valPP =
xmlrpc_bool_new(envP, (xmlrpc_bool) va_arg(argsP->v, xmlrpc_bool));
break;
case 'd':
*valPP =
xmlrpc_double_new(envP, (double) va_arg(argsP->v, double));
break;
case 's':
getString(envP, formatP, argsP, valPP);
break;
case 'w':
getWideString(envP, formatP, argsP, valPP);
break;
case 't':
*valPP = xmlrpc_datetime_new_sec(envP, va_arg(argsP->v, time_t));
break;
case '8':
*valPP = xmlrpc_datetime_new_str(envP, va_arg(argsP->v, char*));
break;
case '6':
getBase64(envP, argsP, valPP);
break;
case 'n':
*valPP =
xmlrpc_nil_new(envP);
break;
case 'I':
*valPP =
xmlrpc_i8_new(envP, (long long) va_arg(argsP->v, long long));
break;
case 'p':
*valPP =
xmlrpc_cptr_new(envP, (void*) va_arg(argsP->v, void*));
break;
case 'A':
mkArrayFromVal(envP, (xmlrpc_value*) va_arg(argsP->v, xmlrpc_value*),
valPP);
break;
case 'S':
mkStructFromVal(envP, (xmlrpc_value*) va_arg(argsP->v, xmlrpc_value*),
valPP);
break;
case 'V':
*valPP = (xmlrpc_value*) va_arg(argsP->v, xmlrpc_value*);
xmlrpc_INCREF(*valPP);
break;
case '(':
getArray(envP, formatP, ')', argsP, valPP);
if (!envP->fault_occurred) {
XMLRPC_ASSERT(**formatP == ')');
(*formatP)++; /* Skip over closing parenthesis */
}
break;
case '{':
getStruct(envP, formatP, '}', argsP, valPP);
if (!envP->fault_occurred) {
XMLRPC_ASSERT(**formatP == '}');
(*formatP)++; /* Skip over closing brace */
}
break;
default: {
const char * const badCharacter = xmlrpc_makePrintableChar(formatChar);
xmlrpc_env_set_fault_formatted(
envP, XMLRPC_INTERNAL_ERROR,
"Unexpected character '%s' in format string", badCharacter);
xmlrpc_strfree(badCharacter);
}
}
}
void
xmlrpc_build_value_va(xmlrpc_env * const envP,
const char * const format,
va_list const args,
xmlrpc_value ** const valPP,
const char ** const tailP) {
XMLRPC_ASSERT_ENV_OK(envP);
XMLRPC_ASSERT(format != NULL);
if (strlen(format) == 0)
xmlrpc_faultf(envP, "Format string is empty.");
else {
va_listx currentArgs;
const char * formatCursor;
init_va_listx(¤tArgs, args);
formatCursor = &format[0];
getValue(envP, &formatCursor, ¤tArgs, valPP);
if (!envP->fault_occurred)
XMLRPC_ASSERT_VALUE_OK(*valPP);
*tailP = formatCursor;
}
}
xmlrpc_value *
xmlrpc_build_value(xmlrpc_env * const envP,
const char * const format,
...) {
va_list args;
xmlrpc_value * retval;
const char * suffix;
va_start(args, format);
xmlrpc_build_value_va(envP, format, args, &retval, &suffix);
va_end(args);
if (!envP->fault_occurred) {
if (*suffix != '\0')
xmlrpc_env_set_fault_formatted(
envP, XMLRPC_INTERNAL_ERROR, "Junk after the argument "
"specifier: '%s'. There must be exactly one arument.",
suffix);
if (envP->fault_occurred)
xmlrpc_DECREF(retval);
}
return retval;
}
/* Copyright (C) 2001 by First Peer, Inc. All rights reserved.
** Copyright (C) 2001 by Eric Kidd. All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE. */
