source: buchla-68k/libcio/dirfns.c@ 9519422

Last change on this file since 9519422 was 7258c6a, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Use standard integer types.
  • Property mode set to 100644
File size: 2.5 KB
Line 
1/*
2 =============================================================================
3 dirfns.c -- miscellaneous directory functions
4 Version 4 -- 1987-06-04 -- D.N. Lynx Crowe
5 =============================================================================
6*/
7
8#include "stddefs.h"
9#include "biosdefs.h"
10
11extern int32_t sprintf(int8_t *str, int8_t *fmt, ...);
12
13static int8_t atrcons[] = "ADVSHR";
14
15/*
16 =============================================================================
17 atrstr(atr, s) -- convert attributes to character string
18 =============================================================================
19*/
20
21int8_t *atrstr(int16_t atr, int8_t s[])
22{
23 register int16_t i, j;
24
25 i = 0x20;
26
27 for (j = 0; j < 6; j++) {
28
29 if (atr & i)
30 s[j] = atrcons[j];
31 else
32 s[j] = '-';
33
34 i >>= 1;
35 }
36
37 s[j] = '\0';
38 return(s);
39}
40
41/*
42 */
43
44static int8_t *mnames[] = {
45
46 "???",
47 "Jan",
48 "Feb",
49 "Mar",
50 "Apr",
51 "May",
52 "Jun",
53 "Jul",
54 "Aug",
55 "Sep",
56 "Oct",
57 "Nov",
58 "Dec"
59 };
60
61/*
62 =============================================================================
63 mname - convert month number to month name
64 =============================================================================
65*/
66
67int8_t *mname(int16_t n)
68{
69 return((n < 1 || n > 12) ? mnames[0] : mnames[n]);
70}
71
72/*
73 */
74
75/*
76 =============================================================================
77 dtunpk(din, tin, s, fmt) -- unpack the date and time from DOS format
78 into "yyyy-mm-dd hh:mm", "yyyy mmm dd hh:mm", or "mmm dd yyyy hh:mm"
79 format.
80 =============================================================================
81*/
82
83int8_t *dtunpk(int16_t din, int16_t tin, int16_t fmt, int8_t *s)
84{
85 register int16_t ftm, fdt;
86
87 ftm = ((tin << 8) & 0xFF00) | ((tin >> 8) & 0x00FF);
88 fdt = ((din << 8) & 0xFF00) | ((din >> 8) & 0x00FF);
89
90 switch (fmt) {
91
92 case 0: /* yyyy-mm-dd hh:mm format */
93
94 sprintf(s, "%04d-%02d-%02d %02d:%02d",
95 1980 + ((fdt >> 9) & 0x7F),
96 (fdt >> 5) & 0xF,
97 fdt & 0x1F,
98 (ftm >> 11) & 0x1F,
99 (ftm >> 5) & 0x3F
100 );
101
102 s[16] = '\0';
103 break;
104
105 case 1: /* yyyy mmm dd hh:mm format */
106 default:
107
108 sprintf(s, "%04d %s %-2d %02d:%02d",
109 1980 + ((fdt >> 9) & 0x7F),
110 mname((fdt >> 5) & 0xF),
111 fdt & 0x1F,
112 (ftm >> 11) & 0x1F,
113 (ftm >> 5) & 0x3F
114 );
115
116 s[17] = '\0';
117 break;
118
119/*
120 */
121
122 case 2: /* mmm dd yyyy hh:mm format */
123
124 sprintf(s, "%s %2d %04d %02d:%02d",
125 mname((fdt >> 5) & 0xF),
126 fdt & 0x1F,
127 1980 + ((fdt >> 9) & 0x7F),
128 (ftm >> 11) & 0x1F,
129 (ftm >> 5) & 0x3F
130 );
131
132 s[17] = '\0';
133 break;
134 }
135
136 return(s);
137}
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