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Don't reinvent the wheel; use strptime(3).

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MFC after:	2 weeks
This commit is contained in:
ru 2001-09-04 16:17:17 +00:00
parent 4a3fdd9c57
commit a55c208c2d
1 changed files with 4 additions and 44 deletions
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48
sbin/dump/unctime.c
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@ -40,10 +40,6 @@ static const char rcsid[] =
#endif /* not lint */
#include <time.h>
#ifdef __STDC__
#include <stdlib.h>
#include <string.h>
#endif
/*
* Convert a ctime(3) format string into a system format date.
@ -52,52 +48,16 @@ static const char rcsid[] =
* Return -1 if the string is not in ctime format.
*/
/*
* Offsets into the ctime string to various parts.
*/
#define E_MONTH 4
#define E_DAY 8
#define E_HOUR 11
#define E_MINUTE 14
#define E_SECOND 17
#define E_YEAR 20
static int lookup __P((char *));
time_t
unctime(str)
char *str;
{
struct tm then;
char dbuf[26];
(void) strncpy(dbuf, str, sizeof(dbuf) - 1);
dbuf[sizeof(dbuf) - 1] = '\0';
dbuf[E_MONTH+3] = '\0';
if ((then.tm_mon = lookup(&dbuf[E_MONTH])) < 0)
return (-1);
then.tm_mday = atoi(&dbuf[E_DAY]);
then.tm_hour = atoi(&dbuf[E_HOUR]);
then.tm_min = atoi(&dbuf[E_MINUTE]);
then.tm_sec = atoi(&dbuf[E_SECOND]);
then.tm_year = atoi(&dbuf[E_YEAR]) - 1900;
str = strptime(str, "%a %b %e %T %Y", &then);
if (str == NULL || (*str != '\n' && *str != '\0'))
return ((time_t)-1);
then.tm_isdst = -1;
return(mktime(&then));
}
static char months[] =
"JanFebMarAprMayJunJulAugSepOctNovDec";
static int
lookup(str)
char *str;
{
register char *cp, *cp2;
for (cp = months, cp2 = str; *cp != '\0'; cp += 3)
if (strncmp(cp, cp2, 3) == 0)
return((cp-months) / 3);
return(-1);
return (mktime(&then));
}