Date: Thu, 03 Sep 1998 22:01:47 -0500 From: Dave Glowacki <dglo@SSEC.WISC.EDU> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: bin/7826: ls(1) knows too much about format of strftime() Message-ID: <199809040301.WAA22572@tick.ssec.wisc.edu>
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>Number: 7826
>Category: bin
>Synopsis: ls(1) knows too much about format of strftime()
>Confidential: yes
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Sep 3 20:10:01 PDT 1998
>Last-Modified:
>Originator: Dave Glowacki
>Organization:
>Release: FreeBSD 3.0-CURRENT i386
>Environment:
>Description:
ls(1) thinks it knows the exact layout of the "%c" format of
strftime().
>How-To-Repeat:
Alter the "national representation of time and date" in
strftime() and ls(1) will break.
Rather than hard-coding the locations of the time elements
and hoping they don't move, ls(1) should use format strings
which produce the desired strings.
>Fix:
Index: print.c
===================================================================
RCS file: /disk0/freebsd/src/bin/ls/print.c,v
retrieving revision 1.17
diff -c -r1.17 print.c
*** print.c 1998/07/29 00:46:13 1.17
--- print.c 1998/09/04 02:46:49
***************
*** 242,268 ****
int i;
char longstring[80];
static time_t now;
if (now == 0)
now = time(NULL);
- strftime(longstring, sizeof(longstring), "%c", localtime(&ftime));
- for (i = 4; i < 11; ++i)
- (void)putchar(longstring[i]);
-
#define SIXMONTHS ((365 / 2) * 86400)
if (f_sectime)
! for (i = 11; i < 24; i++)
! (void)putchar(longstring[i]);
else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
! for (i = 11; i < 16; ++i)
! (void)putchar(longstring[i]);
! else {
! (void)putchar(' ');
! for (i = 20; i < 24; ++i)
! (void)putchar(longstring[i]);
! }
! (void)putchar(' ');
}
static int
--- 242,265 ----
int i;
char longstring[80];
static time_t now;
+ const char *format;
if (now == 0)
now = time(NULL);
#define SIXMONTHS ((365 / 2) * 86400)
if (f_sectime)
! /* Mmm dd hh:mm:ss yyyy */
! format = "%b %e %T %Y ";
else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
! /* Mmm dd hh:mm */
! format = "%b %e %R ";
! else
! /* Mmm dd yyyy */
! format = "%b %e %Y ";
! strftime(longstring, sizeof(longstring), format, localtime(&ftime));
! fputs(longstring, stdout);
}
static int
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