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From: Xin LI <delphij@FreeBSD.org>
Date: Thu, 25 Jun 2009 23:59:23 +0000 (UTC)
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Subject: svn commit: r195015 - head/lib/libc/stdtime
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Author: delphij
Date: Thu Jun 25 23:59:23 2009
New Revision: 195015
URL: http://svn.freebsd.org/changeset/base/195015

Log:
  Implement %z for strptime.
  
  PR:		kern/63064
  Submitted by:	Stefan `Sec` Zehl <sec 42 org> (with some small changes)
  MFC after:	1 month

Modified:
  head/lib/libc/stdtime/strptime.c

Modified: head/lib/libc/stdtime/strptime.c
==============================================================================
--- head/lib/libc/stdtime/strptime.c	Thu Jun 25 23:22:25 2009	(r195014)
+++ head/lib/libc/stdtime/strptime.c	Thu Jun 25 23:59:23 2009	(r195015)
@@ -514,6 +514,34 @@ label:
 			}
 			}
 			break;
+
+		case 'z':
+			{
+			int sign = 1;
+
+			if (*buf != '+') {
+				if (*buf == '-')
+					sign = -1;
+				else
+					return 0;
+			}
+
+			buf++;
+			i = 0;
+			for (len = 4; len > 0; len--) {
+				if (isdigit((int)*buf)) {
+					i *= 10;
+					i += *buf - '0';
+					buf++;
+				} else
+					return 0;
+			}
+
+			tm->tm_hour -= sign * (i / 100);
+			tm->tm_min  -= sign * (i % 100);
+			*GMTp = 1;
+			}
+			break;
 		}
 	}
 	return (char *)buf;