text: /*
   * Copyright (c) Ian F. Darwin 1986-1995.
   * Software written by Ian F. Darwin and others;
   * maintained 1995-present by Christos Zoulas and others.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice immediately at the beginning of the file, without modification,
   *    this list of conditions, and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *  
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  /*
   * print.c - debugging printout routines
   */
  #define _GNU_SOURCE
  #include "php.h"
  
  #include "file.h"
  #include "cdf.h"
  
  #ifndef lint
  FILE_RCSID("@(#)$File: print.c,v 1.78 2015/01/06 02:04:10 christos Exp $")
  #endif  /* lint */
  
  #include <stdio.h>
  #include <string.h>
  #include <stdarg.h>
  #include <stdlib.h>
  #ifdef HAVE_UNISTD_H
  #include <unistd.h>
  #endif
  #include <time.h>
  
  #ifdef PHP_WIN32
  # define asctime_r php_asctime_r
  # define ctime_r php_ctime_r
  #endif
  
  #define SZOF(a)	(sizeof(a) / sizeof(a[0]))
  
  /*VARARGS*/
  protected void
  file_magwarn(struct magic_set *ms, const char *f, ...)
  {
  	va_list va;
  	char *expanded_format = NULL;
  	int expanded_len;
  
  	va_start(va, f);
  	expanded_len = vasprintf(&expanded_format, f, va);
  	va_end(va);
  
  	if (expanded_len >= 0 && expanded_format) {
  		php_error_docref(NULL, E_NOTICE, "Warning: %s", expanded_format);
  
  		free(expanded_format);
  	}
  }
  
  protected const char *
  file_fmttime(uint64_t v, int flags, char *buf)
  {
  	char *pp;
  	time_t t = (time_t)v;
  	struct tm *tm = NULL;
  
  	if (flags & FILE_T_WINDOWS) {
  		struct timeval ts;
  		cdf_timestamp_to_timespec(&ts, t);
  		t = ts.tv_sec;
  	} else {
  		// XXX: perhaps detect and print something if overflow
  		// on 32 bit time_t?
  		t = (time_t)v;
  	}
  
  	if (flags & FILE_T_LOCAL) {
  		pp = ctime_r(&t, buf);
  	} else {
  #ifndef HAVE_DAYLIGHT
  		private int daylight = 0;
  #ifdef HAVE_TM_ISDST
  		private time_t now = (time_t)0;
  
  		if (now == (time_t)0) {
  			struct tm *tm1;
  			(void)time(&now);
  			tm1 = localtime(&now);
  			if (tm1 == NULL)
  				goto out;
  			daylight = tm1->tm_isdst;
  		}
  #endif /* HAVE_TM_ISDST */
  #endif /* HAVE_DAYLIGHT */
  		if (daylight)
  			t += 3600;
  		tm = gmtime(&t);
  		if (tm == NULL)
  			goto out;
  		pp = asctime_r(tm, buf);
  	}
  	if (tm == NULL)
  		goto out;
  	pp = asctime_r(tm, buf);
  
  	if (pp == NULL)
  		goto out;
  	pp[strcspn(pp, "\n")] = '\0';
  	return pp;
  out:
  	return strcpy(buf, "*Invalid time*");
  }
  