Merge remote-tracking branch 'origin/topic/seth/strptime'

* origin/topic/seth/strptime:
  Added a BiF to wrap the strptime function.

Closes #904.

CHANGES

@@ -1,4 +1,9 @@
 
+2.1-84 | 2012-10-19 15:12:56 -0700
+
+  * Added a BiF strptime() to wrap the corresponding C function. (Seth
+    Hall)
+
 2.1-82 | 2012-10-19 15:05:40 -0700
 
   * Add IPv6 support to signature header conditions. (Jon Siwek)

VERSION

@@ -1 +1 @@
-2.1-82
+2.1-84

aux/broctl

@@ -1 +1 @@
-Subproject commit 3d7c2d61e63d7d51c455363cdfe9373e4e680b89
+Subproject commit fd0e7e0b0cf50131efaf536a5683266cfe169455

src/bro.bif

@@ -11,6 +11,7 @@
 #include <cmath>
 #include <sys/stat.h>
 #include <cstdio>
+#include <time.h>
 
 #include "digest.h"
 #include "Reporter.h"
@@ -2615,15 +2616,15 @@ function to_double%(str: string%): double
 	%{
 	const char* s = str->CheckString();
 	char* end_s;
-	
+
 	double d = strtod(s, &end_s);
-	
+
 	if ( s[0] == '\0' || end_s[0] != '\0' )
-		{       
+		{
 		builtin_error("bad conversion to double", @ARG@[0]);
 		d = 0;
-		}     
-	
+		}
+
 	return new Val(d, TYPE_DOUBLE);
 	%}
 
@@ -3285,6 +3286,31 @@ function strftime%(fmt: string, d: time%) : string
 	return new StringVal(buffer);
 	%}
 
+
+## Parse a textual representation of a date/time value into a ``time`` type value.
+##
+## fmt: The format string used to parse the following *d* argument. See ``man strftime``
+##      for the syntax.
+##
+## d: The string representing the time.
+##
+## Returns: The time value calculated from parsing *d* with *fmt*.
+function strptime%(fmt: string, d: string%) : time
+	%{
+	const time_t timeval = time_t(NULL);
+	struct tm t = *localtime(&timeval);
+
+	if ( strptime(d->CheckString(), fmt->CheckString(), &t) == NULL )
+		{
+		reporter->Warning("strptime conversion failed: fmt:%s d:%s", fmt->CheckString(), d->CheckString());
+		return new Val(0.0, TYPE_TIME);
+		}
+
+	double ret = mktime(&t);
+	return new Val(ret, TYPE_TIME);
+	%}
+
+
 # ===========================================================================
 #
 #                           Network Type Processing

testing/btest/Baseline/bifs.strptime/.stdout

@@ -0,0 +1,2 @@
+1350604800.0
+0.0

testing/btest/Baseline/bifs.strptime/reporter.log

@@ -0,0 +1,10 @@
+#separator \x09
+#set_separator	,
+#empty_field	(empty)
+#unset_field	-
+#path	reporter
+#open	2012-10-19-06-06-36
+#fields	ts	level	message	location
+#types	time	enum	string	string
+0.000000	Reporter::WARNING	strptime conversion failed: fmt:%m d:1980-10-24	(empty)
+#close	2012-10-19-06-06-36

testing/btest/bifs/strptime.bro

@@ -0,0 +1,10 @@
+#
+# @TEST-EXEC: bro %INPUT
+# @TEST-EXEC: btest-diff .stdout
+# @TEST-EXEC: btest-diff reporter.log
+
+event bro_init()
+	{
+	print strptime("%Y-%m-%d", "2012-10-19");
+	print strptime("%m", "1980-10-24");
+	}