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1 | /* | |
2 | * tclXclock.c -- | |
3 | * | |
4 | * Contains the TCL time and date related commands. | |
5 | *----------------------------------------------------------------------------- | |
6 | * Copyright 1992 Karl Lehenbauer and Mark Diekhans. | |
7 | * | |
8 | * Permission to use, copy, modify, and distribute this software and its | |
9 | * documentation for any purpose and without fee is hereby granted, provided | |
10 | * that the above copyright notice appear in all copies. Karl Lehenbauer and | |
11 | * Mark Diekhans make no representations about the suitability of this | |
12 | * software for any purpose. It is provided "as is" without express or | |
13 | * implied warranty. | |
14 | *----------------------------------------------------------------------------- | |
15 | * $Id: tclXclock.c,v 2.0 1992/10/16 04:50:28 markd Rel $ | |
16 | *----------------------------------------------------------------------------- | |
17 | */ | |
18 | ||
19 | #include <time.h> | |
20 | #include "tclxint.h" | |
21 | ||
22 | \f | |
23 | /* | |
24 | *----------------------------------------------------------------------------- | |
25 | * | |
26 | * Tcl_GetclockCmd -- | |
27 | * Implements the TCL getclock command: | |
28 | * getclock | |
29 | * | |
30 | * Results: | |
31 | * Standard TCL results. | |
32 | * | |
33 | *----------------------------------------------------------------------------- | |
34 | */ | |
35 | int | |
36 | Tcl_GetclockCmd (clientData, interp, argc, argv) | |
37 | ClientData clientData; | |
38 | Tcl_Interp *interp; | |
39 | int argc; | |
40 | char **argv; | |
41 | { | |
42 | if (argc != 1) { | |
43 | Tcl_AppendResult (interp, tclXWrongArgs, argv[0], (char *) NULL); | |
44 | return TCL_ERROR; | |
45 | } | |
46 | sprintf (interp->result, "%ld", time ((long *) NULL)); | |
47 | return TCL_OK; | |
48 | } | |
49 | \f | |
50 | /* | |
51 | *----------------------------------------------------------------------------- | |
52 | * | |
53 | * Tcl_FmtclockCmd -- | |
54 | * Implements the TCL fmtclock command: | |
55 | * fmtclock clockval [format] [GMT|{}] | |
56 | * | |
57 | * Results: | |
58 | * Standard TCL results. | |
59 | * | |
60 | *----------------------------------------------------------------------------- | |
61 | */ | |
62 | int | |
63 | Tcl_FmtclockCmd (clientData, interp, argc, argv) | |
64 | ClientData clientData; | |
65 | Tcl_Interp *interp; | |
66 | int argc; | |
67 | char **argv; | |
68 | { | |
69 | int useGMT = FALSE; | |
70 | long clockVal; | |
71 | char *format; | |
72 | struct tm *timeDataPtr; | |
73 | int fmtError; | |
74 | ||
75 | if ((argc < 2) || (argc > 4)) { | |
76 | Tcl_AppendResult (interp, tclXWrongArgs, argv [0], | |
77 | " clockval [format] [GMT|{}]", (char *) NULL); | |
78 | return TCL_ERROR; | |
79 | } | |
80 | ||
81 | if (Tcl_GetLong (interp, argv[1], &clockVal) != TCL_OK) | |
82 | return TCL_ERROR; | |
83 | if ((argc == 4) && (argv [3][0] != '\0')) { | |
84 | if (!STREQU (argv [3], "GMT")) { | |
85 | Tcl_AppendResult (interp, "expected \"GMT\" or {} got \"", | |
86 | argv [3], "\"", (char *) NULL); | |
87 | return TCL_ERROR; | |
88 | } | |
89 | useGMT = TRUE; | |
90 | } | |
91 | ||
92 | if ((argc >= 3) && (argv [2][0] != '\0')) | |
93 | format = argv[2]; | |
94 | else | |
95 | format = "%a %b %d %X %Z %Y"; | |
96 | ||
97 | if (useGMT) | |
98 | timeDataPtr = gmtime (&clockVal); | |
99 | else | |
100 | timeDataPtr = localtime (&clockVal); | |
101 | ||
102 | fmtError = strftime (interp->result, TCL_RESULT_SIZE, format, | |
103 | timeDataPtr) < 0; | |
104 | if (fmtError) { | |
105 | Tcl_AppendResult (interp, "error formating time", (char *) NULL); | |
106 | return TCL_ERROR; | |
107 | } | |
108 | return TCL_OK; | |
109 | } |