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openmpi/opal/mca/base/mca_base_var_enum.c
Nathan Hjelm b9dfe84b05 Fix segmentation fault in handling of boolean variables in mca_base_var_set_value.
cmr=v1.7.5:reviewer=jsquyres

This commit was SVN r31082.
2014-03-17 14:58:30 +00:00

280 строки
7.6 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2012 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2013 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2012-2014 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/mca/base/mca_base_var_enum.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
static void mca_base_var_enum_constructor (mca_base_var_enum_t *enumerator);
static void mca_base_var_enum_destructor (mca_base_var_enum_t *enumerator);
OBJ_CLASS_INSTANCE(mca_base_var_enum_t, opal_object_t, mca_base_var_enum_constructor,
mca_base_var_enum_destructor);
static int mca_base_var_enum_bool_get_count (mca_base_var_enum_t *enumerator, int *count)
{
*count = 2;
return OPAL_SUCCESS;
}
static int mca_base_var_enum_bool_get_value (mca_base_var_enum_t *self, int index,
int *value, const char **string_value)
{
if (1 < index) {
return OPAL_ERR_VALUE_OUT_OF_BOUNDS;
}
*value = index ? 1 : 0;
*string_value = index ? "true" : "false";
return OPAL_SUCCESS;
}
static int mca_base_var_enum_bool_vfs (mca_base_var_enum_t *self, const char *string_value,
int *value)
{
char *tmp;
int v;
v = strtol (string_value, &tmp, 10);
if (*tmp != '\0') {
if (0 == strcmp (string_value, "true") || 0 == strcmp (string_value, "t") ||
0 == strcmp (string_value, "enabled")) {
v = 1;
} else if (0 == strcmp (string_value, "false") || 0 == strcmp (string_value, "f") ||
0 == strcmp (string_value, "disabled")) {
v = 0;
} else {
return OPAL_ERR_VALUE_OUT_OF_BOUNDS;
}
}
*value = !!v;
return OPAL_SUCCESS;
}
static int mca_base_var_enum_bool_sfv (mca_base_var_enum_t *self, const int value,
const char **string_value)
{
if (string_value) {
*string_value = value ? "true" : "false";
}
return OPAL_SUCCESS;
}
static int mca_base_var_enum_bool_dump (mca_base_var_enum_t *self, char **out)
{
*out = strdup ("0: f|false|disabled, 1: t|true|enabled");
return *out ? OPAL_SUCCESS : OPAL_ERR_OUT_OF_RESOURCE;
}
mca_base_var_enum_t mca_base_var_enum_bool = {
.super = OPAL_OBJ_STATIC_INIT(opal_object_t),
.enum_name = "boolean",
.get_count = mca_base_var_enum_bool_get_count,
.get_value = mca_base_var_enum_bool_get_value,
.value_from_string = mca_base_var_enum_bool_vfs,
.string_from_value = mca_base_var_enum_bool_sfv,
.dump = mca_base_var_enum_bool_dump
};
int mca_base_var_enum_create (const char *name, const mca_base_var_enum_value_t *values, mca_base_var_enum_t **enumerator)
{
mca_base_var_enum_t *new_enum;
int i;
*enumerator = NULL;
new_enum = OBJ_NEW(mca_base_var_enum_t);
if (NULL == new_enum) {
return OPAL_ERR_OUT_OF_RESOURCE;
}
new_enum->enum_name = strdup (name);
if (NULL == new_enum->enum_name) {
return OPAL_ERR_OUT_OF_RESOURCE;
}
for (i = 0 ; values[i].string ; ++i);
new_enum->enum_value_count = i;
/* make a copy of the values */
new_enum->enum_values = calloc (new_enum->enum_value_count + 1, sizeof (*new_enum->enum_values));
if (NULL == new_enum->enum_values) {
OBJ_DESTRUCT(new_enum);
return OPAL_ERR_OUT_OF_RESOURCE;
}
for (i = 0 ; i < new_enum->enum_value_count ; ++i) {
new_enum->enum_values[i].value = values[i].value;
new_enum->enum_values[i].string = strdup (values[i].string);
}
*enumerator = new_enum;
return OPAL_SUCCESS;
}
static int enum_dump (mca_base_var_enum_t *self, char **out)
{
int i;
char *tmp;
int ret;
*out = NULL;
if (NULL == self) {
return OPAL_ERROR;
}
tmp = NULL;
for (i = 0; i < self->enum_value_count && self->enum_values[i].string ; ++i) {
ret = asprintf (out, "%s%s%d:\"%s\"", tmp ? tmp : "", tmp ? ", " : "", self->enum_values[i].value,
self->enum_values[i].string);
if (tmp) free (tmp);
if (0 > ret) {
return OPAL_ERR_OUT_OF_RESOURCE;
}
tmp = *out;
}
return OPAL_SUCCESS;
}
static int enum_get_count (mca_base_var_enum_t *self, int *count)
{
*count = self->enum_value_count;
return OPAL_SUCCESS;
}
static int enum_get_value (mca_base_var_enum_t *self, int index, int *value, const char **string_value)
{
int count, ret;
ret = self->get_count(self, &count);
if (OPAL_SUCCESS != ret) {
return ret;
}
if (index >= count) {
return OPAL_ERR_VALUE_OUT_OF_BOUNDS;
}
if (value) {
*value = self->enum_values[index].value;
}
if (string_value) {
*string_value = self->enum_values[index].string;
}
return OPAL_SUCCESS;
}
static int enum_value_from_string(mca_base_var_enum_t *self, const char *string_value, int *value_out) {
int value, count, ret, i;
bool is_int;
char *tmp;
ret = self->get_count(self, &count);
if (OPAL_SUCCESS != ret) {
return ret;
}
value = strtol(string_value, &tmp, 0);
/* Check if the string is an integer */
is_int = tmp[0] == '\0';
for (i = 0 ; i < count ; ++i) {
if ((is_int && value == self->enum_values[i].value) ||
0 == strcasecmp (string_value, self->enum_values[i].string)) {
break;
}
}
if (i == count) {
return OPAL_ERR_VALUE_OUT_OF_BOUNDS;
}
*value_out = self->enum_values[i].value;
return OPAL_SUCCESS;
}
static int enum_string_from_value(mca_base_var_enum_t *self, const int value, const char **string_value) {
int count, ret, i;
ret = self->get_count(self, &count);
if (OPAL_SUCCESS != ret) {
return ret;
}
for (i = 0 ; i < count ; ++i) {
if (value == self->enum_values[i].value) {
break;
}
}
if (i == count) {
return OPAL_ERR_VALUE_OUT_OF_BOUNDS;
}
if (string_value) {
*string_value = self->enum_values[i].string;
}
return OPAL_SUCCESS;
}
static void mca_base_var_enum_constructor (mca_base_var_enum_t *enumerator)
{
memset ((char *) enumerator + sizeof (enumerator->super), 0 , sizeof(*enumerator) - sizeof(enumerator->super));
enumerator->get_value = enum_get_value;
enumerator->get_count = enum_get_count;
enumerator->value_from_string = enum_value_from_string;
enumerator->string_from_value = enum_string_from_value;
enumerator->dump = enum_dump;
}
static void mca_base_var_enum_destructor (mca_base_var_enum_t *enumerator)
{
if (enumerator->enum_name) {
free (enumerator->enum_name);
}
/* release the copy of the values */
if (enumerator->enum_values) {
for (int i = 0 ; i < enumerator->enum_value_count ; ++i) {
free ((void *) enumerator->enum_values[i].string);
}
free (enumerator->enum_values);
}
}