[PATCH 2/2] msvcrt: Implement %F format for strftime

[Vijay Kiran Kamuju]

Signed-off-by: Vijay Kiran Kamuju <infyquest at gmail.com>
---
 dlls/msvcrt/tests/time.c   |  5 +++++
 dlls/msvcrt/time.c         | 13 +++++++++++++
 dlls/ucrtbase/tests/misc.c |  8 ++++++++
 3 files changed, 26 insertions(+)

diff --git a/dlls/msvcrt/tests/time.c b/dlls/msvcrt/tests/time.c
index 1bc9f3802b2..016c9775de7 100644
--- a/dlls/msvcrt/tests/time.c
+++ b/dlls/msvcrt/tests/time.c
@@ -613,6 +613,11 @@ static void test_strftime(void)
     ok(retA == 0, "expected 0, got %ld\n", retA);
     ok(errno==EINVAL || broken(errno==0xdeadbeef), "errno = %d\n", errno);
 
+    errno = 0xdeadbeef;
+    retA = p_strftime(bufA, 256, "%F", gmt_tm);
+    ok(retA == 0, "expected 0, got %ld\n", retA);
+    ok(errno==EINVAL || broken(errno==0xdeadbeef), "errno = %d\n", errno);
+
     errno = 0xdeadbeef;
     retA = p_strftime(bufA, 256, "%R", gmt_tm);
     ok(retA == 0, "expected 0, got %ld\n", retA);
diff --git a/dlls/msvcrt/time.c b/dlls/msvcrt/time.c
index 7fe85295185..450663fd1f5 100644
--- a/dlls/msvcrt/time.c
+++ b/dlls/msvcrt/time.c
@@ -1170,6 +1170,19 @@ static MSVCRT_size_t strftime_helper(char *str, MSVCRT_size_t max, const char *f
             if(!strftime_int(str, &ret, max, mstm->tm_year%100, alternate ? 0 : 2, 0, 99))
                 return 0;
             break;
+        case 'F':
+            tmp = 1900+mstm->tm_year;
+            if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 4, 0, 9999))
+                return 0;
+            if(ret < max)
+                str[ret++] = '-';
+            if(!strftime_int(str, &ret, max, mstm->tm_mon+1, alternate ? 0 : 2, 1, 12))
+                return 0;
+            if(ret < max)
+                str[ret++] = '-';
+            if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 0, 31))
+                return 0;
+            break;
 #endif
         case 'H':
             if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
diff --git a/dlls/ucrtbase/tests/misc.c b/dlls/ucrtbase/tests/misc.c
index 77221566b54..c58b6315656 100644
--- a/dlls/ucrtbase/tests/misc.c
+++ b/dlls/ucrtbase/tests/misc.c
@@ -903,6 +903,14 @@ static void test_strftime(void)
     ok(retA == 6, "expected 6, got %d\n", (int)retA);
     ok(!strcmp(bufA, "1/1/70"), "got %s\n", bufA);
 
+    retA = p_strftime(bufA, sizeof(bufA), "%F", &epoch);
+    ok(retA == 10, "expected 10, got %d\n", (int)retA);
+    ok(!strcmp(bufA, "1970-01-01"), "got %s\n", bufA);
+
+    retA = p_strftime(bufA, sizeof(bufA), "%#F", &epoch);
+    ok(retA == 8, "expected 8, got %d\n", (int)retA);
+    ok(!strcmp(bufA, "1970-1-1"), "got %s\n", bufA);
+
     retA = p_strftime(bufA, sizeof(bufA), "%R", &epoch);
     ok(retA == 5, "expected 5, got %d\n", (int)retA);
     ok(!strcmp(bufA, "00:00"), "got %s\n", bufA);
-- 
2.21.0