1 /*
2 * Copyright 1987 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 /*
7 * Copyright (c) 1980 Regents of the University of California.
8 * All rights reserved. The Berkeley software License Agreement
9 * specifies the terms and conditions for redistribution.
10 */
11
12 #pragma ident "%Z%%M% %I% %E% SMI"
13
14 /*LINTLIBRARY*/
15
16 #include <time.h>
17 #include <tzfile.h>
18
19 static char cbuf[26];
20
21 static char *ct_numb(char *, int);
22
23 char *
asctime(struct tm * t)24 asctime(struct tm *t)
25 {
26 char *cp, *ncp;
27 int *tp;
28
29 cp = cbuf;
30 for (ncp = "Day Mon 00 00:00:00 1900\n"; *cp++ = *ncp++;);
31 ncp = &"SunMonTueWedThuFriSat"[3*t->tm_wday];
32 cp = cbuf;
33 *cp++ = *ncp++;
34 *cp++ = *ncp++;
35 *cp++ = *ncp++;
36 cp++;
37 tp = &t->tm_mon;
38 ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(*tp)*3];
39 *cp++ = *ncp++;
40 *cp++ = *ncp++;
41 *cp++ = *ncp++;
42 cp = ct_numb(cp, *--tp);
43 cp = ct_numb(cp, *--tp+100);
44 cp = ct_numb(cp, *--tp+100);
45 cp = ct_numb(cp, *--tp+100);
46 cp = ct_numb(cp, (t->tm_year + TM_YEAR_BASE)/100);
47 cp--;
48 cp = ct_numb(cp, t->tm_year+100);
49 return (cbuf);
50 }
51
52 static char *
ct_numb(char * cp,int n)53 ct_numb(char *cp, int n)
54 {
55 cp++;
56 if (n>=10)
57 *cp++ = (n/10)%10 + '0';
58 else
59 *cp++ = ' ';
60 *cp++ = n%10 + '0';
61 return (cp);
62 }
63