Author: yuripv
Date: Sat Nov  3 23:37:13 2018
New Revision: 340106
URL: https://svnweb.freebsd.org/changeset/base/340106

Log:
  strptime: make %k and %l specifiers match their description in
  strftime(3), and allow them to process space-padded input.
  
  PR:           230720
  Submitted by: rlit...@inetco.com (original version)
  Approved by:  kib (mentor, implicit)
  Differential Revision:        https://reviews.freebsd.org/D17761

Modified:
  head/contrib/netbsd-tests/lib/libc/time/t_strptime.c
  head/lib/libc/stdtime/strptime.c

Modified: head/contrib/netbsd-tests/lib/libc/time/t_strptime.c
==============================================================================
--- head/contrib/netbsd-tests/lib/libc/time/t_strptime.c        Sat Nov  3 
22:12:21 2018        (r340105)
+++ head/contrib/netbsd-tests/lib/libc/time/t_strptime.c        Sat Nov  3 
23:37:13 2018        (r340106)
@@ -331,8 +331,19 @@ ATF_TC_BODY(hour, tc)
 
        h_fail("00", "%I");
        h_fail("13", "%I");
+
 #ifdef __FreeBSD__
-       h_fail("00", "%l");
+       h_pass("0", "%k", 1, -1, -1, 0, -1, -1, -1, -1, -1);
+       h_pass("04", "%k", 2, -1, -1, 4, -1, -1, -1, -1, -1);
+       h_pass(" 8", "%k", 2, -1, -1, 8, -1, -1, -1, -1, -1);
+       h_pass("23", "%k", 2, -1, -1, 23, -1, -1, -1, -1, -1);
+       h_fail("24", "%k");
+
+       h_fail("0", "%l");
+       h_pass("1", "%l", 1, -1, -1, 1, -1, -1, -1, -1, -1);
+       h_pass("05", "%l", 2, -1, -1, 5, -1, -1, -1, -1, -1);
+       h_pass(" 9", "%l", 2, -1, -1, 9, -1, -1, -1, -1, -1);
+       h_pass("12", "%l", 2, -1, -1, 12, -1, -1, -1, -1, -1);
        h_fail("13", "%l");
 #endif
 

Modified: head/lib/libc/stdtime/strptime.c
==============================================================================
--- head/lib/libc/stdtime/strptime.c    Sat Nov  3 22:12:21 2018        
(r340105)
+++ head/lib/libc/stdtime/strptime.c    Sat Nov  3 23:37:13 2018        
(r340106)
@@ -272,17 +272,24 @@ label:
                case 'k':
                case 'l':
                        /*
-                        * Of these, %l is the only specifier explicitly
-                        * documented as not being zero-padded.  However,
-                        * there is no harm in allowing zero-padding.
+                        * %k and %l specifiers are documented as being
+                        * blank-padded.  However, there is no harm in
+                        * allowing zero-padding.
                         *
-                        * XXX The %l specifier may gobble one too many
+                        * XXX %k and %l specifiers may gobble one too many
                         * digits if used incorrectly.
                         */
+
+                       len = 2;
+                       if ((c == 'k' || c == 'l') &&
+                           isblank_l((unsigned char)*buf, locale)) {
+                               buf++;
+                               len = 1;
+                       }
+
                        if (!isdigit_l((unsigned char)*buf, locale))
                                return (NULL);
 
-                       len = 2;
                        for (i = 0; len && *buf != 0 &&
                             isdigit_l((unsigned char)*buf, locale); buf++) {
                                i *= 10;
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