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/*
* Copyright 1993, University Corporation for Atmospheric Research
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*/
/* $Id: error.c,v 1.14 90/02/23 16:08:55 davis Exp */
/*
* Utility Functions to implement consistant error logging
* mechanisms for netcdf
*/
/*LINTLIBRARY*/
#ifdef NO_STDARG /* The 4.0 release should be ANSI compliant */
#undef NO_STDARG
#endif
#include "local_nc.h"
#include <stdio.h>
#ifndef NO_STDARG
#include <stdarg.h>
#else
/* try varargs instead */
#include <varargs.h>
#endif /* !NO_STDARG */
#include <errno.h>
#if defined ERRNO_MISSING
extern int errno;
#endif
#ifdef VMS
#include <ssdef.h>
#endif
#ifndef NO_STRERROR
#include <string.h> /* contains prototype for ansi libc function strerror() */
#else
/* provide a strerror function for older unix systems */
char *
strerror(errnum)
int errnum ;
{
extern int sys_nerr;
extern const char * const sys_errlist[];
if (errnum < 0 || errnum >= sys_nerr)
return NULL ;
return (char *)sys_errlist[errnum] ;
}
#endif /* NO_STRERROR */
#ifdef vms
/*
* On the vms system, when a system error occurs which is not
* mapped into the unix styled errno values, errno is set EVMSERR
* and a VMS error code is set in vaxc$errno.
* This routine prints the systems message associated with status return
* from a system services call.
*/
#include <descrip.h>
#include <ssdef.h>
static int
vmserror1( int status )
{
short msglen ;
char msgbuf[256] ;
$DESCRIPTOR(message, msgbuf) ;
register ret ;
ret = SYS$GETMSG(status, &msglen, &message, 15, 0) ;
switch(ret) {
case SS$_BUFFEROVF :
case SS$_NORMAL :
(void) fprintf(stderr, "%.*s\n", msglen, msgbuf) ;
break ;
default :
break ;
}
return(ret) ;
}
#endif /* vms */
#ifdef USE_doprnt_FOR_vfprintf
/*
* kludge for ze ancienne regieme
*/
vfprintf(stream, fmt, va_alist)
FILE *stream;
char *fmt;
va_dcl
{
return _doprnt(fmt, va_alist, stream);
}
#endif
/*
* Log SYSTEM errors
* Use where you would want to call perror(3).
* Calling sequence is
* nc_serror(format, arg1, arg2,...)
* with zero or more args of types compatible with the associated format
* specifiers. For example:
* nc_serror("shutting down");
* nc_serror("can't open %s", file_name);
* nc_serror("process %d in state %s",pid,state);
*/
void
#ifndef NO_STDARG
nc_serror(const char *fmt, ...)
#else
/*VARARGS1*/
nc_serror(fmt, va_alist)
const char *fmt ;
va_dcl
#endif /* !NO_STDARG */
{
if( ncopts & NC_VERBOSE ) {
va_list args ;
static const char unknown[] = "Unknown Error";
int errnum = errno; /* save real errno in case we wipe it out */
const char * cp;
#ifndef NO_STDARG
va_start(args, fmt) ;
#else
va_start(args) ;
#endif /* !NO_STDARG */
(void) fprintf(stderr,"%s: ", cdf_routine_name);
(void) vfprintf(stderr,fmt,args) ;
va_end(args) ;
switch(errnum) {
case 0 :
ncerr = NC_NOERR ;
(void) fputc('\n',stderr) ;
break ;
#ifdef vms
case EVMSERR :
ncerr = NC_SYSERR ;
(void) fputc(': ',stderr) ;
(void) vmserror1(vaxc$errno) ;
break ;
#endif /* vms */
default :
ncerr = NC_SYSERR ;
(void) fprintf(stderr,": %s\n",
(cp = strerror(errnum)) == NULL ? unknown : cp ) ;
break ;
}
(void) fflush(stderr); /* to ensure log files are current */
errno = 0 ; /* ??? */
} /* NC_VERBOSE */
if( ncopts & NC_FATAL ) {
exit(ncopts) ;
}
}
/*
* Like nc_serror above, but doesn't check for system error.
* Use for logging error conditions which are not system errors.
* Calling sequence is
* NCadvise(ncerr, format, arg1, arg2,...)
* with zero or more args of types compatible with the associated format
* specifiers. For example:
* NCadvise(NC_NOERR, "just advice");
* NCadvise(NC_EBADID, "%d is not a valid cdf id", cdfid);
*/
#ifndef NO_STDARG
void
NCadvise(int err, const char *fmt,...)
#else
/*VARARGS1*/
void
NCadvise(err, fmt, va_alist)
int err ;
const char *fmt ;
va_dcl
#endif /* !NO_STDARG */
{
va_list args ;
ncerr = err ;
if( ncopts & NC_VERBOSE )
{
(void) fprintf(stderr,"%s: ", cdf_routine_name);
#ifndef NO_STDARG
va_start(args ,fmt) ;
#else
va_start(args) ;
#endif /* !NO_STDARG */
(void) vfprintf(stderr,fmt,args) ;
va_end(args) ;
(void) fputc('\n',stderr) ;
(void) fflush(stderr); /* to ensure log files are current */
}
if( (ncopts & NC_FATAL) && ncerr != NC_NOERR )
{
exit(ncopts) ;
}
}
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