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/* $Id: pvmfperror.m4,v 1.3 2007/04/19 23:15:00 pvmsrc Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include "pvm3.h"
#include "pvm_consts.h"
#ifdef SYSVSTR
#include <string.h>
#else
#include <strings.h>
#endif
#define MAX(a,b) ((a) > (b) ? (a) : (b))
void
FUNCTION(pvmfperror) ARGS(`STRING_ARG(p), info')
STRING_ARG_DECL(p);
int *info;
{
static char *buf = 0;
static int buflen = 0;
/*
* Have to have a NUL at the end of the string, and
* the only way to do this portably is to copy the whole string
* into a malloc'ed buffer. We keep the buffer around for
* future use rather than free'ing it each time we're done.
*/
if (!buf)
buf = malloc(buflen = STRING_LEN(p) + 1);
else
if (STRING_LEN(p) + 1 > buflen) {
buflen = MAX(STRING_LEN(p) + 1, buflen * 2);
/* don't use realloc; it might cause old data to be copied */
free(buf);
buf = malloc(buflen);
}
if (!buf) {
fprintf(stderr, "pvmfperror PvmNoMem");
*info = PvmNoMem;
return;
}
strncpy(buf, STRING_PTR(p), STRING_LEN(p));
buf[STRING_LEN(p)] = '\0';
*info = pvm_perror(buf);
}
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