add sofia-sip 1.12.4 (plus some patches through 12/21/2006) to in tree libs

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3774 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/sofia-sip/utils/sip-date.c

@@ -0,0 +1,172 @@
+/*
+ * This file is part of the Sofia-SIP package
+ *
+ * Copyright (C) 2005 Nokia Corporation.
+ *
+ * Contact: Pekka Pessi <pekka.pessi@nokia.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+/**@page sip-date Print or parse SIP date
+ * 
+ * @section synopsis Synopsis
+ *
+ * <tt>sip-date [-n] [SIP-date | [YYYYy] [DDd] [HHh] [MMm] [SS[s]]]</tt>
+ *
+ * @section description Description
+ * 
+ * @em sip-date is an utility for printing a SIP date (in the format
+ * specified by RFC 1123, but the timezone must always be GMT) or parsing a
+ * given SIP date. The date can be given as a SIP date or by giving year,
+ * day, hour, minutes and seconds separately.
+ * 
+ * @section options Options
+ *
+ * The @em sip-date utility takes options as follows:
+ * <dl>
+ * <dt>-n</dt>
+ * <dd>The @em sip-date utility prints the date as seconds elapsed since
+ * epoch (01 Jan 1900 00:00:00).
+ * </dd>
+ * </dl>
+ *
+ * @section examples Examples
+ *
+ * You want to convert current time to SIP date:
+ * @code
+ * $ sip-date
+ * @endcode
+ * You want to find out how many seconds there was in 1900's:
+ * @code
+ * $ siptime -n 2000y
+ * 3155673600
+ * @endcode
+ *
+ * @section bugs Reporting Bugs
+ * Report bugs to <sofia-sip-devel@lists.sourceforge.net>.
+ *
+ * @section author Author
+ * Pekka Pessi <Pekka -dot- Pessi -at- nokia -dot- com>
+ *
+ * @section copyright Copyright
+ * Copyright (C) 2005 Nokia Corporation.
+ *
+ * This program is free software; see the source for copying conditions.
+ * There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+#include <sofia-sip/sip.h>
+#include <sofia-sip/sip_header.h>
+#include <sofia-sip/msg_date.h>
+
+void usage(void)
+{
+  fprintf(stderr, 
+	  "usage: sip-date [-n] "
+          "[SIP-date | [YYYYy] [DDd] [HHh] [MMm] [SS[s]]]\n");
+  exit(1);
+}
+
+/* Epoch year. */
+#define EPOCH 1900		
+/* Day number of New Year Day of given year */
+#define YEAR_DAYS(y) \
+  (((y)-1) * 365 + ((y)-1) / 4 - ((y)-1) / 100 + ((y)-1) / 400)
+
+int main(int ac, char *av[])
+{
+  int numeric = 0;
+  sip_time_t t, t2;
+  char const *s;
+  char buf[1024];
+
+  if (av[1] && strcmp(av[1], "-n") == 0)
+    av++, numeric = 1;
+
+  if (av[1] && (strcmp(av[1], "-?") == 0 || strcmp(av[1], "-h") == 0))
+    usage();
+
+  if ((s = av[1])) {
+    size_t n, m;
+    /* Concatenate all arguments with a space in between them */
+    for (n = 0; (s = av[1]); av++) {
+      m = strlen(s);
+      if (n + m + 2 > sizeof(buf))
+	exit(1);
+      memcpy(buf + n, s, m);
+      buf[n + m] = ' ';
+      n += m + 1;
+    }
+    buf[n] = '\0';
+
+    s = buf;
+      
+    if (s[0] < '0' || s[0] > '9') {
+      if (msg_date_d(&s, &t) < 0) {
+	fprintf(stderr, "sip-date: %s is not valid time\n", s);
+	exit(1);
+      }
+    }
+    else {
+      for (; *s; ) {
+	t2 = 0;
+
+	if (msg_delta_d(&s, &t2) < 0)
+	  usage();
+      
+	switch (*s) {
+	case 'y': t2 = YEAR_DAYS(t2) - YEAR_DAYS(EPOCH); 
+	  /*FALLTHROUGH*/
+	case 'd': t += t2 * 24 * 60 * 60; s++; break;
+	case 'h': t += t2 * 60 * 60; s++; break;
+	case 'm': t += t2 * 60; s++; break;
+	case 's': 
+	  s++;
+	default:
+	  t += t2; 
+	  break;
+	}
+
+	while (*s && *s == ' ')
+	  s++;
+      }
+    }
+  }
+  else {
+    t = sip_now();
+  }
+
+  if (numeric) {
+    msg_delta_e(buf, sizeof(buf), t);
+  }
+  else {
+    msg_date_e(buf, sizeof(buf), t);
+  }
+
+  puts(buf);
+
+  return 0;
+}