rainlance/amiga-tz
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more tzname work

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SCCS-file: localtime.c
SCCS-SID: 2.10
This commit is contained in:
Arthur David Olson
1986-11-21 12:59:20 -05:00
committed by Paul Eggert
parent 44ad1082b2
commit 3031397290
1 changed files with 31 additions and 18 deletions
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49
localtime.c
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@ -46,7 +46,7 @@ static struct state s;
static char isset;
char * tzname[2]; /* set by localtime; available to all */
char * tzname[2] = { "GMT", "GMT" };
#ifdef TZ_ABBR
char * tz_abbr; /* compatibility w/older versions */
@ -66,40 +66,40 @@ char * codep;
}
static
tzload(tzname, sp)
register char * tzname;
tzload(name, sp)
register char * name;
register struct state * sp;
{
register int i;
register int fid;
if (tzname == 0 && (tzname = TZDEFAULT) == 0)
if (name == 0 && (name = TZDEFAULT) == 0)
return -1;
{
register char * p;
register int doaccess;
char fullname[MAXPATHLEN];
doaccess = tzname[0] == '/';
doaccess = name[0] == '/';
if (!doaccess) {
if ((p = TZDIR) == 0)
return -1;
if ((strlen(p) + strlen(tzname) + 1) >= sizeof fullname)
if ((strlen(p) + strlen(name) + 1) >= sizeof fullname)
return -1;
(void) strcpy(fullname, p);
(void) strcat(fullname, "/");
(void) strcat(fullname, tzname);
(void) strcat(fullname, name);
/*
** Set doaccess if '.' (as in "../") shows up in name.
*/
while (*tzname != '\0')
if (*tzname++ == '.')
while (*name != '\0')
if (*name++ == '.')
doaccess = TRUE;
tzname = fullname;
name = fullname;
}
if (doaccess && access(tzname, 4) != 0)
if (doaccess && access(name, 4) != 0)
return -1;
if ((fid = open(tzname, 0)) == -1)
if ((fid = open(name, 0)) == -1)
return -1;
}
{
@ -146,16 +146,24 @@ register struct state * sp;
}
/*
** Check that all the local time type indices are valid.
** Also check that all abbreviation indices are valid.
*/
for (i = 0; i < sp->timecnt; ++i)
for (i = 0; i < sp->timecnt; ++i) {
if (sp->types[i] >= sp->typecnt)
return -1;
/*
** Check that all the abbreviation indices are valid.
*/
for (i = 0; i < sp->typecnt; ++i)
if (sp->ttis[i].tt_abbrind >= sp->charcnt)
return -1;
}
/*
** Set tzname elements to initial values.
*/
tzname[0] = tzname[1] = &sp->chars[0];
for (i = 1; i < sp->typecnt; ++i) {
register struct ttinfo * ttisp;
ttisp = &sp->ttis[i];
tzname[ttisp->tt_isdst != 0] = &sp->chars[ttisp->tt_abbrind];
}
return 0;
}
@ -187,6 +195,7 @@ char * name;
s.ttis[0].tt_gmtoff = 0;
s.ttis[0].tt_abbrind = 0;
(void) strcpy(s.chars, "GMT");
tzname[0] = tzname[1] = s.chars;
return result;
}
@ -234,7 +243,11 @@ zonetime(timep, zone)
long * timep;
char * zone;
{
struct state st;
/*
** This struct needs to be static since tzname[i] may end up pointing
** to it.
*/
static struct state st;
return (tzload(zone, &st) == 0) ? timesub(timep, &st) : 0;
}