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/*
* Copyright (C) 1999-2007 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: Cns_errmsg.c,v $ $Revision: 1.2 $ $Date: 2007/05/14 05:53:52 $ CERN IT-PDP/DM Jean-Philippe Baud";
#endif /* not lint */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <sys/types.h>
#include "Cns.h"
#include "Cns_api.h"
#include "Csnprintf.h"
/* Cns_seterrbuf - set receiving buffer for error messages */
int DLL_DECL
Cns_seterrbuf(char *buffer, int buflen)
{
struct Cns_api_thread_info *thip;
if (Cns_apiinit (&thip))
return (-1);
thip->errbufp = buffer;
thip->errbuflen = buflen;
return (0);
}
/* Cns_errmsg - send error message to user defined client buffer or to stderr */
int DLL_DECL
Cns_errmsg(char *func, char *msg, ...)
{
va_list args;
char prtbuf[PRTBUFSZ];
int save_errno;
struct Cns_api_thread_info *thip;
save_errno = errno;
if (Cns_apiinit (&thip))
return (-1);
va_start (args, msg);
if (func) {
Csnprintf (prtbuf, PRTBUFSZ, "%s: ", func);
prtbuf[PRTBUFSZ-1] = '\0';
} else {
*prtbuf = '\0';
}
if ((strlen(prtbuf) + 1) < PRTBUFSZ) {
Cvsnprintf (prtbuf + strlen(prtbuf), PRTBUFSZ - strlen(prtbuf), msg, args);
prtbuf[PRTBUFSZ-1] = '\0';
}
va_end (args);
if (thip->errbufp) {
if (strlen (prtbuf) < thip->errbuflen) {
strcpy (thip->errbufp, prtbuf);
} else if (thip->errbuflen > 2) {
strncpy (thip->errbufp, prtbuf, thip->errbuflen - 2);
thip->errbufp[thip->errbuflen-2] = '\n';
thip->errbufp[thip->errbuflen-1] = '\0';
}
} else {
fprintf (stderr, "%s", prtbuf);
}
errno = save_errno;
return (0);
}
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