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[PATCH] time: in strptime(), make %z accept [+-]HH:MM time zones
- From: Vincent Bernat <Vincent dot Bernat at exoscale dot ch>
- To: libc-alpha at sourceware dot org
- Cc: Vincent Bernat <vincent at bernat dot im>
- Date: Tue, 27 Jan 2015 16:20:04 +0100
- Subject: [PATCH] time: in strptime(), make %z accept [+-]HH:MM time zones
- Authentication-results: sourceware.org; auth=none
From: Vincent Bernat <vincent@bernat.im>
In ISO 8601, +03:30 is a valid time zone. Currently, strptime() only
parses it as a 2-digit time zone an believes this is +03:00. This change
makes it accept a single semi-colon.
This fix BZ #17887.
---
ChangeLog | 3 +++
time/strptime_l.c | 18 ++++++++++++++----
time/tst-strptime2.c | 9 +++++++++
3 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 24c1a74c963d..0f3e4bdc72a8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,9 @@
[BZ #17886]
* time/strptime_l.c: Make %z accept Z as a valid time zone.
+ [BZ #17887]
+ * time/strptime_l.c: Make %z accept [+-]HH:MM time zones.
+
2015-01-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* iconv/loop.c: Suppress array out of bound warning caused by GCC
diff --git a/time/strptime_l.c b/time/strptime_l.c
index 78882ec39aed..3326e110d928 100644
--- a/time/strptime_l.c
+++ b/time/strptime_l.c
@@ -749,9 +749,11 @@ __strptime_internal (rp, fmt, tmp, statep LOCALE_PARAM)
rp++;
break;
case 'z':
- /* We recognize three formats: if two digits are given, these
- specify hours. If fours digits are used, minutes are
- also specified. 'Z' is equivalent to +0000. */
+ /* We recognize four formats: 1. if two digits are given,
+ these specify hours. 2. If fours digits are used,
+ minutes are also specified. 3. A semi-colon can be used
+ to separate the two groups of two digits (HH:MM). 4. 'Z'
+ is equivalent to +0000. */
{
val = 0;
while (ISSPACE (*rp))
@@ -765,8 +767,16 @@ __strptime_internal (rp, fmt, tmp, statep LOCALE_PARAM)
return NULL;
bool neg = *rp++ == '-';
int n = 0;
- while (n < 4 && *rp >= '0' && *rp <= '9')
+ while (n < 4 &&
+ ((*rp >= '0' && *rp <= '9') ||
+ (*rp == ':' && n == 2)))
{
+ if (*rp == ':')
+ {
+ rp++;
+ if (!(*rp >= '0' && *rp <= '9'))
+ return NULL;
+ }
val = val * 10 + *rp++ - '0';
++n;
}
diff --git a/time/tst-strptime2.c b/time/tst-strptime2.c
index c22967a93026..1c0958fc8bc0 100644
--- a/time/tst-strptime2.c
+++ b/time/tst-strptime2.c
@@ -13,16 +13,25 @@ static const struct
{ "1113472456 -1000", -36000 },
{ "1113472456 +10", 36000 },
{ "1113472456 -10", -36000 },
+ { "1113472456 +10:00", 36000 },
+ { "1113472456 -10:00", -36000 },
{ "1113472456 +1030", 37800 },
{ "1113472456 -1030", -37800 },
+ { "1113472456 +10:30", 37800 },
+ { "1113472456 -10:30", -37800 },
{ "1113472456 +0030", 1800 },
{ "1113472456 -0030", -1800 },
{ "1113472456 Z", 0 },
{ "1113472456 -1330", LONG_MAX },
{ "1113472456 +1330", LONG_MAX },
+ { "1113472456 -13:30", LONG_MAX },
+ { "1113472456 +13:30", LONG_MAX },
{ "1113472456 -1060", LONG_MAX },
{ "1113472456 +1060", LONG_MAX },
+ { "1113472456 -10:60", LONG_MAX },
+ { "1113472456 +10:60", LONG_MAX },
{ "1113472456 1030", LONG_MAX },
+ { "1113472456 10:30", LONG_MAX },
};
#define ntests (sizeof (tests) / sizeof (tests[0]))
--
2.1.4