X-Git-Url: https://git.distorted.org.uk/~mdw/cfd/blobdiff_plain/2d13b3c847173bdc62adc0c9e354eedbe76c3461..16d3444d3deaf22f604e6d3f28268839f39907b2:/getdate.y

diff --git a/getdate.y b/getdate.y
index 4be26bf..1a7c788 100644
--- a/getdate.y
+++ b/getdate.y
@@ -14,6 +14,7 @@
 
 #include <stdio.h>
 #include <ctype.h>
+#include <stdlib.h>
 
 #define ISSPACE(c) (isspace ((unsigned char)c))
 #define ISALPHA(c) (isalpha ((unsigned char)c))
@@ -370,7 +371,7 @@ relunit	: tUNUMBER tYEAR_UNIT {
 	;
 
 number	: tUNUMBER
-          {
+	  {
 	    if (yyHaveTime && yyHaveDate && !yyHaveRel)
 	      yyYear = $1;
 	    else
@@ -392,8 +393,8 @@ number	: tUNUMBER
 		      }
 		    else
 		      {
-		    	yyHour = $1 / 100;
-		    	yyMinutes = $1 % 100;
+			yyHour = $1 / 100;
+			yyMinutes = $1 % 100;
 		      }
 		    yySeconds = 0;
 		    yyMeridian = MER24;
@@ -836,6 +837,8 @@ yylex ()
 
 #define TM_YEAR_ORIGIN 1900
 
+#ifndef GETDATE_IGNORE_TIMEZONE
+
 /* Yield A - B, measured in seconds.  */
 static long
 difftm (a, b)
@@ -858,6 +861,8 @@ difftm (a, b)
 	  + (a->tm_sec - b->tm_sec));
 }
 
+#endif
+
 time_t
 get_date (p, now)
      const char *p;
@@ -919,14 +924,15 @@ get_date (p, now)
     {
 
       /* Guard against falsely reporting errors near the time_t boundaries
-         when parsing times in other time zones.  For example, if the min
-         time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead
-         of UTC, then the min localtime value is 1970-01-01 08:00:00; if
-         we apply mktime to 1970-01-01 00:00:00 we will get an error, so
-         we apply mktime to 1970-01-02 08:00:00 instead and adjust the time
-         zone by 24 hours to compensate.  This algorithm assumes that
-         there is no DST transition within a day of the time_t boundaries.  */
-
+	 when parsing times in other time zones.  For example, if the min
+	 time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead
+	 of UTC, then the min localtime value is 1970-01-01 08:00:00; if
+	 we apply mktime to 1970-01-01 00:00:00 we will get an error, so
+	 we apply mktime to 1970-01-02 08:00:00 instead and adjust the time
+	 zone by 24 hours to compensate.  This algorithm assumes that
+	 there is no DST transition within a day of the time_t boundaries.  */
+
+#ifndef GETDATE_IGNORE_TIMEZONE
       if (yyHaveZone)
 	{
 	  tm = tm0;
@@ -942,6 +948,7 @@ get_date (p, now)
 	    }
 	  Start = mktime (&tm);
 	}
+#endif
 
       if (Start == (time_t) -1)
 	return Start;
@@ -956,6 +963,7 @@ get_date (p, now)
 	return Start;
     }
 
+#ifndef GETDATE_IGNORE_TIMEZONE
   if (yyHaveZone)
     {
       long delta = yyTimezone * 60L + difftm (&tm, gmtime (&Start));
@@ -963,6 +971,7 @@ get_date (p, now)
 	return -1;		/* time_t overflow */
       Start += delta;
     }
+#endif
 
   return Start;
 }