From a3533b90b25826cb9db8ceb1ed6448f820bfe18b Mon Sep 17 00:00:00 2001
From: "John Hodge (sonata)" <tpg@mutabah.net>
Date: Fri, 7 Nov 2014 12:14:52 +0800
Subject: [PATCH] Usermode/libc - Add support for %H and %M in strftime

---
 Usermode/Libraries/libc.so_src/time.c | 31 ++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/Usermode/Libraries/libc.so_src/time.c b/Usermode/Libraries/libc.so_src/time.c
index 185af88f..611ae9b0 100644
--- a/Usermode/Libraries/libc.so_src/time.c
+++ b/Usermode/Libraries/libc.so_src/time.c
@@ -145,11 +145,18 @@ size_t strftime(char*restrict s, size_t maxsize, const char*restrict format, con
 		if( *format == 0 )
 			break;
 		format ++;
+		
+		// If EOS is hit on a '%', break early
+		if( *format == 0 )
+			break;
 		switch(*format++)
 		{
-		case 0:	format--;	break;
-		case '%':	ofs += _puts(s, maxsize, ofs, format-1, 1);	break;
-		case 'd':	// The day of the month as a decimal number (range 01 to 31).
+		// Literal '%', 
+		case '%':
+			ofs += _puts(s, maxsize, ofs, format-1, 1);
+			break;
+		// The day of the month as a decimal number (range 01 to 31).
+		case 'd':
 			{
 			char tmp[2] = {'0','0'};
 			tmp[0] += (timeptr->tm_mday / 10) % 10;
@@ -157,6 +164,24 @@ size_t strftime(char*restrict s, size_t maxsize, const char*restrict format, con
 			ofs += _puts(s, maxsize, ofs, tmp, 2);
 			}
 			break;
+		// Two-digit 24 hour
+		case 'H':
+			{
+			char tmp[2] = {'0','0'};
+			tmp[0] += (timeptr->tm_hour / 10) % 10;
+			tmp[1] +=  timeptr->tm_hour % 10;
+			ofs += _puts(s, maxsize, ofs, tmp, 2);
+			}
+			break;
+		// Two-digit minutes
+		case 'M':
+			{
+			char tmp[2] = {'0','0'};
+			tmp[0] += (timeptr->tm_min / 10) % 10;
+			tmp[1] +=  timeptr->tm_min % 10;
+			ofs += _puts(s, maxsize, ofs, tmp, 2);
+			}
+			break;
 		default:
 			_SysDebug("TODO: strftime('...%%%c...')", format[-1]);
 			break;
-- 
2.20.1