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- /*
- * Copyright (c) 1990, 1991, 1993, 1994, 1995
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
- * the University nor the names of its contributors may be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char rcsid[] =
- "@(#) $Header: util.c,v 1.28+ 94/06/12 14:30:31 leres Exp $ (LBL)";
- #endif
-
- #include <stdlib.h>
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/file.h>
- #include <sys/stat.h>
-
- #include <ctype.h>
- #ifdef SVR4
- #include <fcntl.h>
- #endif
- #ifdef __STDC__
- #include <stdlib.h>
- #endif
- #include <stdio.h>
- #if __STDC__
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
- #include <string.h>
- #include <unistd.h>
-
- #include "interface.h"
-
- /*
- * Print out a filename (or other ascii string).
- * If ep is NULL, assume no truncation check is needed.
- * Return true if truncated.
- */
- int
- fn_print(register const u_char *s, register const u_char *ep)
- {
- register int ret;
- register u_char c;
-
- ret = 1; /* assume truncated */
- putchar('"');
- while (ep == NULL || s < ep) {
- c = *s++;
- if (c == '\0') {
- ret = 0;
- break;
- }
- if (!isascii(c)) {
- c = toascii(c);
- putchar('M');
- putchar('-');
- }
- if (!isprint(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- putchar('^');
- }
- putchar(c);
- }
- putchar('"');
- return(ret);
- }
-
- /*
- * Print out a counted filename (or other ascii string).
- * If ep is NULL, assume no truncation check is needed.
- * Return true if truncated.
- */
- int
- fn_printn(register const u_char *s, register u_int n,
- register const u_char *ep)
- {
- register int ret;
- register u_char c;
-
- ret = 1; /* assume truncated */
- putchar('"');
- while (ep == NULL || s < ep) {
- if (n-- <= 0) {
- ret = 0;
- break;
- }
- c = *s++;
- if (!isascii(c)) {
- c = toascii(c);
- putchar('M');
- putchar('-');
- }
- if (!isprint(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- putchar('^');
- }
- putchar(c);
- }
- putchar('"');
- return(ret);
- }
-
- /*
- * Print the timestamp
- */
- void
- ts_print(register const struct timeval *tvp)
- {
- register int s;
- extern int32 thiszone;
-
- if (tflag > 0) {
- /* Default */
- s = (tvp->tv_sec + thiszone) % 86400;
- (void)printf("%02d:%02d:%02d.%06d ",
- s / 3600, (s % 3600) / 60, s % 60, tvp->tv_usec);
- } else if (tflag < 0) {
- /* Unix timeval style */
- (void)printf("%d.%06d ", tvp->tv_sec, tvp->tv_usec);
- }
- }
-
- /*
- * Convert a token value to a string; use "fmt" if not found.
- */
- const char *
- tok2str(register const struct token *lp, register const char *fmt,
- register int v)
- {
- static char buf[128];
-
- while (lp->s != NULL) {
- if (lp->v == v)
- return (lp->s);
- ++lp;
- }
- if (fmt == NULL)
- fmt = "#%d";
- (void)sprintf(buf, fmt, v);
- return (buf);
- }
-
- /* A replacement for strdup() that cuts down on malloc() overhead */
- char *
- savestr(register const char *str)
- {
- register u_int size;
- register char *p;
- static char *strptr = NULL;
- static u_int strsize = 0;
-
- size = strlen(str) + 1;
- if (size > strsize) {
- strsize = 1024;
- if (strsize < size)
- strsize = size;
- strptr = (char *)malloc(strsize);
- if (strptr == NULL)
- error("savestr: malloc");
- }
- (void)strcpy(strptr, str);
- p = strptr;
- strptr += size;
- strsize -= size;
- return (p);
- }
-
- #ifdef NOVFPRINTF
- /*
- * Stock 4.3 doesn't have vfprintf.
- * This routine is due to Chris Torek.
- */
- vfprintf(f, fmt, args)
- FILE *f;
- char *fmt;
- va_list args;
- {
- int ret;
-
- if ((f->_flag & _IOWRT) == 0) {
- if (f->_flag & _IORW)
- f->_flag |= _IOWRT;
- else
- return EOF;
- }
- ret = _doprnt(fmt, args, f);
- return ferror(f) ? EOF : ret;
- }
- #endif
-
- /* VARARGS */
- __dead void
- #if __STDC__ || defined(SOLARIS)
- error(char *fmt, ...)
- #else
- error(fmt, va_alist)
- char *fmt;
- va_dcl
- #endif
- {
- va_list ap;
-
- (void)fprintf(stderr, "%s: ", program_name);
- #if __STDC__
- va_start(ap, fmt);
- #else
- va_start(ap);
- #endif
- (void)vfprintf(stderr, fmt, ap);
- va_end(ap);
- if (*fmt) {
- fmt += strlen(fmt);
- if (fmt[-1] != '\n')
- (void)fputc('\n', stderr);
- }
- exit(1);
- /* NOTREACHED */
- }
-
- /* VARARGS */
- void
- #if __STDC__ || defined(SOLARIS)
- warning(char *fmt, ...)
- #else
- warning(fmt, va_alist)
- char *fmt;
- va_dcl
- #endif
- {
- va_list ap;
-
- (void)fprintf(stderr, "%s: warning: ", program_name);
- #if __STDC__
- va_start(ap, fmt);
- #else
- va_start(ap);
- #endif
- (void)vfprintf(stderr, fmt, ap);
- va_end(ap);
- if (*fmt) {
- fmt += strlen(fmt);
- if (fmt[-1] != '\n')
- (void)fputc('\n', stderr);
- }
- }
-
- /*
- * Copy arg vector into a new buffer, concatenating arguments with spaces.
- */
- char *
- copy_argv(register char **argv)
- {
- register char **p;
- register int len = 0;
- char *buf;
- char *src, *dst;
-
- p = argv;
- if (*p == 0)
- return 0;
-
- while (*p)
- len += strlen(*p++) + 1;
-
- buf = (char *)malloc(len);
-
- p = argv;
- dst = buf;
- while ((src = *p++) != NULL) {
- while ((*dst++ = *src++) != '\0')
- ;
- dst[-1] = ' ';
- }
- dst[-1] = '\0';
-
- return buf;
- }
-
- char *
- read_infile(char *fname)
- {
- struct stat buf;
- int fd;
- char *p;
-
- fd = open(fname, O_RDONLY);
- if (fd < 0)
- error("can't open '%s'", fname);
-
- if (fstat(fd, &buf) < 0)
- error("can't state '%s'", fname);
-
- p = (char *)malloc((u_int)buf.st_size);
- if (read(fd, p, (int)buf.st_size) != buf.st_size)
- error("problem reading '%s'", fname);
-
- return p;
- }
-
- int
- gmt2local()
- {
- #if !defined(SVR4) && !defined(linux)
- struct timeval tv;
- struct timezone tz;
- register struct tm *tm;
- register int t;
-
- if (gettimeofday(&tv, &tz) < 0)
- error("gettimeofday");
- tm = localtime((time_t *)&tv.tv_sec);
- #ifndef SUNOS3
- t = tm->tm_gmtoff;
- #else
- t = tz.tz_minuteswest * -60;
- if (tm->tm_isdst)
- t += 60 * 60;
- #endif
- return (t);
- #else
- tzset();
- return (-altzone);
- #endif
- }
-