333 lines
6.2 KiB
C
333 lines
6.2 KiB
C
/* $NetBSD: util.c,v 1.4 1996/05/11 13:18:00 mycroft Exp $ */
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/*
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* Copyright (c) 1990, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static char rcsid[] =
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"@(#) Header: util.c,v 1.28 94/06/12 14:30:31 leres Exp (LBL)";
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#endif
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#ifdef SOLARIS
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#include <fcntl.h>
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#endif
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#ifdef __STDC__
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#include <stdlib.h>
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#endif
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#include <stdio.h>
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#if __STDC__
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <string.h>
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#include <unistd.h>
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#include "interface.h"
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/*
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* Print out a filename (or other ascii string).
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* If ep is NULL, assume no truncation check is needed.
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* Return true if truncated.
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*/
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int
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fn_print(register const u_char *s, register const u_char *ep)
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{
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register int ret;
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register u_char c;
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ret = 1; /* assume truncated */
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putchar('"');
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while (ep == NULL || s < ep) {
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c = *s++;
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if (c == '\0') {
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ret = 0;
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break;
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}
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if (!isascii(c)) {
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c = toascii(c);
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putchar('M');
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putchar('-');
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}
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if (!isprint(c)) {
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c ^= 0x40; /* DEL to ?, others to alpha */
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putchar('^');
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}
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putchar(c);
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}
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putchar('"');
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return(ret);
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}
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/*
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* Print out a counted filename (or other ascii string).
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* If ep is NULL, assume no truncation check is needed.
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* Return true if truncated.
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*/
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int
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fn_printn(register const u_char *s, register u_int n,
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register const u_char *ep)
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{
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register int ret;
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register u_char c;
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ret = 1; /* assume truncated */
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putchar('"');
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while (ep == NULL || s < ep) {
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if (n-- <= 0) {
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ret = 0;
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break;
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}
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c = *s++;
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if (!isascii(c)) {
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c = toascii(c);
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putchar('M');
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putchar('-');
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}
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if (!isprint(c)) {
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c ^= 0x40; /* DEL to ?, others to alpha */
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putchar('^');
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}
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putchar(c);
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}
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putchar('"');
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return(ret);
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}
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/*
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* Print the timestamp
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*/
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void
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ts_print(register const struct timeval *tvp)
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{
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register int s;
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extern int32 thiszone;
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if (tflag > 0) {
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/* Default */
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s = (tvp->tv_sec + thiszone) % 86400;
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(void)printf("%02d:%02d:%02d.%06d ",
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s / 3600, (s % 3600) / 60, s % 60, tvp->tv_usec);
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} else if (tflag < 0) {
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/* Unix timeval style */
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(void)printf("%d.%06d ", tvp->tv_sec, tvp->tv_usec);
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}
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}
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/*
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* Convert a token value to a string; use "fmt" if not found.
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*/
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const char *
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tok2str(register const struct token *lp, register const char *fmt,
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register int v)
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{
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static char buf[128];
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while (lp->s != NULL) {
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if (lp->v == v)
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return (lp->s);
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++lp;
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}
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if (fmt == NULL)
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fmt = "#%d";
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(void)sprintf(buf, fmt, v);
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return (buf);
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}
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/* A replacement for strdup() that cuts down on malloc() overhead */
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char *
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savestr(register const char *str)
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{
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register u_int size;
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register char *p;
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static char *strptr = NULL;
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static u_int strsize = 0;
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size = strlen(str) + 1;
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if (size > strsize) {
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strsize = 1024;
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if (strsize < size)
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strsize = size;
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strptr = malloc(strsize);
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if (strptr == NULL)
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error("savestr: malloc");
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}
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(void)strcpy(strptr, str);
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p = strptr;
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strptr += size;
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strsize -= size;
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return (p);
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}
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#ifdef NOVFPRINTF
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/*
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* Stock 4.3 doesn't have vfprintf.
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* This routine is due to Chris Torek.
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*/
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vfprintf(f, fmt, args)
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FILE *f;
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char *fmt;
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va_list args;
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{
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int ret;
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if ((f->_flag & _IOWRT) == 0) {
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if (f->_flag & _IORW)
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f->_flag |= _IOWRT;
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else
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return EOF;
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}
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ret = _doprnt(fmt, args, f);
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return ferror(f) ? EOF : ret;
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}
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#endif
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/* VARARGS */
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__dead void
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#if __STDC__ || defined(SOLARIS)
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error(char *fmt, ...)
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#else
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error(fmt, va_alist)
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char *fmt;
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va_dcl
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#endif
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{
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va_list ap;
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(void)fprintf(stderr, "%s: ", program_name);
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#if __STDC__
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va_start(ap, fmt);
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#else
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va_start(ap);
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#endif
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(void)vfprintf(stderr, fmt, ap);
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va_end(ap);
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if (*fmt) {
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fmt += strlen(fmt);
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if (fmt[-1] != '\n')
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(void)fputc('\n', stderr);
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}
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exit(1);
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/* NOTREACHED */
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}
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/* VARARGS */
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void
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#if __STDC__ || defined(SOLARIS)
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warning(char *fmt, ...)
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#else
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warning(fmt, va_alist)
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char *fmt;
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va_dcl
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#endif
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{
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va_list ap;
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(void)fprintf(stderr, "%s: warning: ", program_name);
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#if __STDC__
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va_start(ap, fmt);
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#else
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va_start(ap);
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#endif
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(void)vfprintf(stderr, fmt, ap);
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va_end(ap);
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if (*fmt) {
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fmt += strlen(fmt);
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if (fmt[-1] != '\n')
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(void)fputc('\n', stderr);
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}
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}
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/*
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* Copy arg vector into a new buffer, concatenating arguments with spaces.
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*/
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char *
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copy_argv(register char **argv)
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{
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register char **p;
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register int len = 0;
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char *buf;
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char *src, *dst;
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p = argv;
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if (*p == 0)
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return 0;
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while (*p)
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len += strlen(*p++) + 1;
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buf = malloc(len);
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p = argv;
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dst = buf;
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while ((src = *p++) != NULL) {
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while ((*dst++ = *src++) != '\0')
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;
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dst[-1] = ' ';
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}
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dst[-1] = '\0';
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return buf;
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}
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char *
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read_infile(char *fname)
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{
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struct stat buf;
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int fd;
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char *p;
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fd = open(fname, O_RDONLY);
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if (fd < 0)
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error("can't open '%s'", fname);
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if (fstat(fd, &buf) < 0)
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error("can't state '%s'", fname);
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p = malloc((u_int)buf.st_size);
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if (read(fd, p, (int)buf.st_size) != buf.st_size)
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error("problem reading '%s'", fname);
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return p;
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}
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int
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gmt2local()
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{
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#ifndef SOLARIS
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time_t now;
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if (time(&now) == -1)
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error("time");
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return (localtime(&now)->tm_gmtoff);
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#else
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tzset();
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return (-altzone);
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#endif
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}
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