8.2.x/src/misc.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 */

/*! \file s_misc.c
 * \brief Yet another miscellaneous functions file.
 * \version $Id$
 */

#include "stdinc.h"
#include "misc.h"
#include "irc_string.h"
#include "ircd.h"


static const char *const months[] =
{
  "January",   "February", "March",   "April",
  "May",       "June",     "July",    "August",
  "September", "October",  "November","December"
};

static const char *const weekdays[] =
{
  "Sunday",   "Monday", "Tuesday", "Wednesday",
  "Thursday", "Friday", "Saturday"
};

const char *
date(time_t lclock)
{
  static char buf[80], plus;
  struct tm *lt, *gm;
  struct tm gmbuf;
  int minswest;

  if (!lclock)
    lclock = CurrentTime;

  gm = gmtime(&lclock);
  memcpy(&gmbuf, gm, sizeof(gmbuf));
  gm = &gmbuf;
  lt = localtime(&lclock);

  /*
   * There is unfortunately no clean portable way to extract time zone
   * offset information, so do ugly things.
   */
  minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);

  if (lt->tm_yday != gm->tm_yday)
  {
    if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) ||
        (lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
      minswest -= 24 * 60;
    else
      minswest += 24 * 60;
  }

  plus = (minswest > 0) ? '-' : '+';
  if (minswest < 0)
    minswest = -minswest;

  snprintf(buf, sizeof(buf), "%s %s %d %d -- %02u:%02u:%02u %c%02u:%02u",
           weekdays[lt->tm_wday], months[lt->tm_mon],lt->tm_mday,
           lt->tm_year + 1900, lt->tm_hour, lt->tm_min, lt->tm_sec,
           plus, minswest/60, minswest%60);
  return buf;
}

const char *
smalldate(time_t lclock)
{
  static char buf[MAX_DATE_STRING];
  struct tm *lt, *gm;
  struct tm gmbuf;

  if (!lclock)
    lclock = CurrentTime;

  gm = gmtime(&lclock);
  memcpy(&gmbuf, gm, sizeof(gmbuf));
  gm = &gmbuf;
  lt = localtime(&lclock);

  snprintf(buf, sizeof(buf), "%d/%d/%d %02d.%02d",
           lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday,
           lt->tm_hour, lt->tm_min);

  return buf;
}

/*
 * myctime - This is like standard ctime()-function, but it zaps away
 *   the newline from the end of that string. Also, it takes
 *   the time value as parameter, instead of pointer to it.
 *   Note that it is necessary to copy the string to alternate
 *   buffer (who knows how ctime() implements it, maybe it statically
 *   has newline there and never 'refreshes' it -- zapping that
 *   might break things in other places...)
 *
 *
 * Thu Nov 24 18:22:48 1986
 */
const char *
myctime(time_t value)
{
  static char buf[32];
  char *p;

  strlcpy(buf, ctime(&value), sizeof(buf));

  if ((p = strchr(buf, '\n')))
    *p = '\0';
  return buf;
}

#ifdef HAVE_LIBCRYPTO
const char *
ssl_get_cipher(const SSL *ssl)
{
  static char buffer[IRCD_BUFSIZE];
  int bits = 0;

  SSL_CIPHER_get_bits(SSL_get_current_cipher(ssl), &bits);

  snprintf(buffer, sizeof(buffer), "%s %s-%d", SSL_get_version(ssl),
           SSL_get_cipher(ssl), bits);
  return buffer;
}
#endif
Revision:	3456
Committed:	Thu May 1 19:39:25 2014 UTC (9 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	3825 byte(s)
Log Message:	- misc.c:ssl_get_ciper(): get rid of this magic IRCD_BUFSIZE/4. Use IRCD_BUFSIZE instead.
#	User	Rev	Content
1	adx	30	/*
2	michael	2916	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	2916	* Copyright (c) 1997-2014 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19			* USA
20			*/
21
22	michael	2916	/*! \file s_misc.c
23			* \brief Yet another miscellaneous functions file.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	3347	#include "misc.h"
29	adx	30	#include "irc_string.h"
30			#include "ircd.h"
31
32
33	michael	2301	static const char *const months[] =
34	adx	30	{
35			"January", "February", "March", "April",
36			"May", "June", "July", "August",
37			"September", "October", "November","December"
38			};
39
40	michael	2301	static const char *const weekdays[] =
41	adx	30	{
42			"Sunday", "Monday", "Tuesday", "Wednesday",
43			"Thursday", "Friday", "Saturday"
44			};
45
46	michael	1847	const char *
47	michael	2916	date(time_t lclock)
48	adx	30	{
49			static char buf[80], plus;
50			struct tm lt, gm;
51			struct tm gmbuf;
52			int minswest;
53
54	michael	2916	if (!lclock)
55	adx	30	lclock = CurrentTime;
56	michael	3244
57	adx	30	gm = gmtime(&lclock);
58			memcpy(&gmbuf, gm, sizeof(gmbuf));
59			gm = &gmbuf;
60			lt = localtime(&lclock);
61
62			/*
63			* There is unfortunately no clean portable way to extract time zone
64			* offset information, so do ugly things.
65			*/
66			minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);
67
68			if (lt->tm_yday != gm->tm_yday)
69			{
70			if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) \|\|
71			(lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
72			minswest -= 24 * 60;
73			else
74			minswest += 24 * 60;
75			}
76
77			plus = (minswest > 0) ? '-' : '+';
78			if (minswest < 0)
79			minswest = -minswest;
80
81	michael	1233	snprintf(buf, sizeof(buf), "%s %s %d %d -- %02u:%02u:%02u %c%02u:%02u",
82			weekdays[lt->tm_wday], months[lt->tm_mon],lt->tm_mday,
83			lt->tm_year + 1900, lt->tm_hour, lt->tm_min, lt->tm_sec,
84			plus, minswest/60, minswest%60);
85	adx	30	return buf;
86			}
87
88			const char *
89			smalldate(time_t lclock)
90			{
91			static char buf[MAX_DATE_STRING];
92			struct tm lt, gm;
93			struct tm gmbuf;
94
95			if (!lclock)
96			lclock = CurrentTime;
97
98			gm = gmtime(&lclock);
99			memcpy(&gmbuf, gm, sizeof(gmbuf));
100	michael	2916	gm = &gmbuf;
101	adx	30	lt = localtime(&lclock);
102	michael	2916
103	michael	1233	snprintf(buf, sizeof(buf), "%d/%d/%d %02d.%02d",
104			lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday,
105			lt->tm_hour, lt->tm_min);
106	adx	30
107			return buf;
108			}
109
110	michael	2970	/*
111			* myctime - This is like standard ctime()-function, but it zaps away
112			* the newline from the end of that string. Also, it takes
113			* the time value as parameter, instead of pointer to it.
114			* Note that it is necessary to copy the string to alternate
115			* buffer (who knows how ctime() implements it, maybe it statically
116			* has newline there and never 'refreshes' it -- zapping that
117			* might break things in other places...)
118			*
119			*
120			* Thu Nov 24 18:22:48 1986
121			*/
122			const char *
123			myctime(time_t value)
124			{
125			static char buf[32];
126			char *p;
127
128			strlcpy(buf, ctime(&value), sizeof(buf));
129
130	michael	3244	if ((p = strchr(buf, '\n')))
131	michael	2970	*p = '\0';
132			return buf;
133			}
134
135	adx	30	#ifdef HAVE_LIBCRYPTO
136	michael	1847	const char *
137	michael	967	ssl_get_cipher(const SSL *ssl)
138	adx	30	{
139	michael	3456	static char buffer[IRCD_BUFSIZE];
140	michael	967	int bits = 0;
141	adx	30
142			SSL_CIPHER_get_bits(SSL_get_current_cipher(ssl), &bits);
143
144	michael	967	snprintf(buffer, sizeof(buffer), "%s %s-%d", SSL_get_version(ssl),
145			SSL_get_cipher(ssl), bits);
146	adx	30	return buffer;
147			}
148			#endif