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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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) 2007 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <errno.h>
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include "opal/util/error.h"
#include "opal/constants.h"
#define MAX_CONVERTERS 5
#define MAX_CONVERTER_PROJECT_LEN 10
struct converter_info_t {
int init;
char project[MAX_CONVERTER_PROJECT_LEN];
int err_base;
int err_max;
opal_err2str_fn_t converter;
};
typedef struct converter_info_t converter_info_t;
/* all default to NULL */
converter_info_t converters[MAX_CONVERTERS];
static const char *
opal_strerror_int(int errnum)
{
int i;
const char *ret = NULL;
for (i = 0 ; i < MAX_CONVERTERS ; ++i) {
if (0 != converters[i].init) {
ret = converters[i].converter(errnum);
if (NULL != ret) break;
}
}
return ret;
}
/* caller must free string */
static char*
opal_strerror_unknown(int errnum)
{
int i;
char *ret;
for (i = 0 ; i < MAX_CONVERTERS ; ++i) {
if (0 != converters[i].init) {
if (errnum < converters[i].err_base &&
errnum > converters[i].err_max) {
asprintf(&ret, "Unknown error: %d (%s error %d)",
errnum, converters[i].project,
errnum - converters[i].err_base);
return ret;
}
}
}
asprintf(&ret, "Unknown error: %d", errnum);
return ret;
}
void
opal_perror(int errnum, const char *msg)
{
const char* errmsg = opal_strerror_int(errnum);
if (NULL != msg && errnum != OPAL_ERR_IN_ERRNO) {
fprintf(stderr, "%s: ", msg);
}
if (NULL == errmsg) {
if (errnum == OPAL_ERR_IN_ERRNO) {
perror(msg);
} else {
char *ue_msg = opal_strerror_unknown(errnum);
fprintf(stderr, "%s\n", ue_msg);
free(ue_msg);
}
} else {
fprintf(stderr, "%s\n", errmsg);
}
fflush(stderr);
}
/* big enough to hold long version */
#define UNKNOWN_RETBUF_LEN 50
static char unknown_retbuf[UNKNOWN_RETBUF_LEN];
const char *
opal_strerror(int errnum)
{
const char* errmsg;
if (errnum == OPAL_ERR_IN_ERRNO) {
return strerror(errno);
}
errmsg = opal_strerror_int(errnum);
if (NULL == errmsg) {
char *ue_msg = opal_strerror_unknown(errnum);
snprintf(unknown_retbuf, UNKNOWN_RETBUF_LEN, "%s", ue_msg);
free(ue_msg);
errno = EINVAL;
return (const char*) unknown_retbuf;
} else {
return errmsg;
}
}
int
opal_strerror_r(int errnum, char *strerrbuf, size_t buflen)
{
const char* errmsg = opal_strerror_int(errnum);
int ret;
if (NULL == errmsg) {
if (errnum == OPAL_ERR_IN_ERRNO) {
char *tmp = strerror(errno);
strncpy(strerrbuf, tmp, buflen);
return OPAL_SUCCESS;
} else {
char *ue_msg = opal_strerror_unknown(errnum);
ret = snprintf(strerrbuf, buflen, "%s", ue_msg);
free(ue_msg);
if (ret > (int) buflen) {
errno = ERANGE;
return OPAL_ERR_OUT_OF_RESOURCE;
} else {
errno = EINVAL;
return OPAL_SUCCESS;
}
}
} else {
ret = snprintf(strerrbuf, buflen, "%s", errmsg);
if (ret > (int) buflen) {
errno = ERANGE;
return OPAL_ERR_OUT_OF_RESOURCE;
} else {
return OPAL_SUCCESS;
}
}
}
int
opal_error_register(const char *project, int err_base, int err_max,
opal_err2str_fn_t converter)
{
int i;
for (i = 0 ; i < MAX_CONVERTERS ; ++i) {
if (0 == converters[i].init) {
converters[i].init = 1;
strncpy(converters[i].project, project, MAX_CONVERTER_PROJECT_LEN);
converters[i].project[MAX_CONVERTER_PROJECT_LEN-1] = '\0';
converters[i].err_base = err_base;
converters[i].err_max = err_max;
converters[i].converter = converter;
return OPAL_SUCCESS;
}
}
return OPAL_ERR_OUT_OF_RESOURCE;
}
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