It's a brave new ANSI world!

[unix-history] / usr / src / bin / ls / util.c

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Michael Fischbein.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)util.c      5.9 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "ls.h"
#include "extern.h"

void
prcopy(src, dest, len)
       register char *src, *dest;
       register int len;
{
       register int ch;

       while(len--) {
               ch = *src++;
               *dest++ = isprint(ch) ? ch : '?';
       }
}

void *
emalloc(size)
       u_int size;
{
       void *retval;

       if ((retval = malloc(size)) == NULL)
               err("%s", strerror(errno));
       return (retval);
}

void
usage()
{
       (void)fprintf(stderr, "usage: ls [-1ACFLRTacdfgiklqrstu] [file ...]\n");
       exit(1);
}

#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif

void
#if __STDC__
err(const char *fmt, ...)
#else
err(fmt, va_alist)
       char *fmt;
       va_dcl
#endif
{
       va_list ap;
#if __STDC__
       va_start(ap, fmt);
#else
       va_start(ap);
#endif
       (void)fprintf(stderr, "ls: ");
       (void)vfprintf(stderr, fmt, ap);
       va_end(ap);
       (void)fprintf(stderr, "\n");
       exit(1);
       /* NOTREACHED */
}

void
#if __STDC__
warn(const char *fmt, ...)
#else
warn(fmt, va_alist)
       char *fmt;
       va_dcl
#endif
{
       va_list ap;
#if __STDC__
       va_start(ap, fmt);
#else
       va_start(ap);
#endif
       (void)fprintf(stderr, "ls: ");
       (void)vfprintf(stderr, fmt, ap);
       va_end(ap);
       (void)fprintf(stderr, "\n");
}