source: trunk/essentials/app-arch/gzip/amiga/tailor.c

Last change on this file was 3325, checked in by bird, 18 years ago

gzip 1.3.11
File size: 4.3 KB
Line 
1/* tailor.c -- target dependent functions
2 * Copyright (C) 1993 Carsten Steger (carsten.steger@informatik.tu-muenchen.de)
3 * This is free software; you can redistribute it and/or modify it under the
4 * terms of the GNU General Public License, see the file COPYING.
5 */
6
7/*
8 * This file contains Amiga specific functions for gzip.
9 */
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <error.h>
15#include <time.h>
16#include <utime.h>
17#include <exec/types.h>
18#include <dos/dos.h>
19#include <dos/dosextens.h>
20#include <dos/dosasl.h>
21#include <proto/dos.h>
22
23#define MAXPATH 1024
24#define MAXARGS 512
25
26extern struct DosLibrary *DOSBase;
27
28extern void *xmalloc(unsigned int size);
29
30static char *expand_next_file (char *pattern);
31static int in_prev_args (char *arg, char **argv, int argc);
32extern void _expand_args (int *oargc, char ***oargv);
33
34
35static char *expand_next_file (pattern)
36 char *pattern;
37{
38 long err;
39 char *pathname;
40 static struct AnchorPath *an = NULL;
41
42 pathname = NULL;
43 if (pattern == NULL)
44 err = -1;
45 else
46 do
47 {
48 if (an == NULL)
49 {
50 an = xmalloc (sizeof (struct AnchorPath) + MAXPATH);
51 memset (an, 0, sizeof (struct AnchorPath) + MAXPATH);
52 an->ap_BreakBits = SIGBREAKF_CTRL_C;
53 an->ap_Strlen = MAXPATH;
54 an->ap_Flags = APF_DOWILD;
55 err = MatchFirst (pattern, an);
56 }
57 else
58 err = MatchNext (an);
59
60 pathname = an->ap_Buf;
61 } while (err == 0 && pathname == NULL);
62
63 if (err)
64 {
65 MatchEnd (an);
66 free (an);
67 an = NULL;
68 return NULL;
69 }
70 else
71 return pathname;
72}
73
74
75static int in_prev_args (arg, argv, argc)
76 char *arg, **argv;
77 int argc;
78{
79 int i, is_in_args;
80
81 is_in_args = 0;
82 for (i = 1; i < argc - 1; i++)
83 if (stricmp (arg, argv[i]) == 0)
84 is_in_args = 1;
85 return is_in_args;
86}
87
88
89void _expand_args (oargc, oargv)
90 int *oargc;
91 char ***oargv;
92{
93 int i;
94 char *str, **argv;
95 static char buf[MAXPATH];
96 int argc, no_match_at_all, num_matches, contains_wildcards;
97
98 /* With Kickstart 1.3 wildcards can't be expanded. */
99 if (DOSBase->dl_lib.lib_Version < 37) return;
100
101 no_match_at_all = 1;
102 contains_wildcards = 0;
103 argc = 0;
104 argv = xmalloc (MAXARGS * sizeof (char *));
105
106 argv[argc++] = (*oargv)[0];
107 for (i = 1; i < *oargc; i++)
108 {
109 if (ParsePattern ((*oargv)[i], buf, MAXPATH))
110 {
111 contains_wildcards = 1;
112 num_matches = 0;
113 while (str = expand_next_file ((*oargv)[i]))
114 if (argc >= MAXARGS)
115 {
116 expand_next_file (NULL);
117 fprintf (stderr,"Too many files.\n");
118 exit (20);
119 }
120 else
121 {
122 /* Avoid duplicate entries */
123 if (!in_prev_args (str, argv, argc))
124 {
125 argv[argc++] = strdup (str);
126 num_matches++;
127 }
128 }
129 if (num_matches != 0)
130 no_match_at_all = 0;
131 }
132 else
133 if (argc >= MAXARGS)
134 {
135 fprintf (stderr,"Too many files.\n");
136 exit (20);
137 }
138 else
139 {
140 if (!in_prev_args ((*oargv)[i], argv, argc))
141 argv[argc++] = (*oargv)[i];
142 }
143 }
144 *oargc = argc;
145 *oargv = argv;
146 if (no_match_at_all && contains_wildcards) {
147 fprintf (stderr,"No match.\n");
148 exit (20);
149 }
150}
151
152
153int utime (path, times)
154 char *path;
155 struct utimbuf *times;
156{
157 struct DateStamp date;
158 LONG error;
159 time_t modtime;
160
161 /* With Kickstart 1.3 setting the filedate could be done, I guess.
162 * Maybe someone else will implement and test the code for this
163 * case (I don't have Kickstart 1.3). */
164 if (DOSBase->dl_lib.lib_Version < 37) return 0;
165
166 /* Amiga dates are counted from 1. Jan 1978 as opposed to 1. Jan 1970
167 * on Unix. Therefore we have to subtract 2922 days (8*365+2). We also
168 * have to subtract the value of __timezone since SAS/C uses "CST+06"
169 * as the default value. */
170 modtime = times->modtime - __timezone;
171 date.ds_Days = (modtime / 86400) - 2922;
172 modtime %= 86400;
173 date.ds_Minute = modtime / 60;
174 modtime %= 60;
175 date.ds_Tick = modtime * TICKS_PER_SECOND;
176 error = SetFileDate (path, &date);
177 if (error == DOSFALSE)
178 {
179 errno = EOSERR;
180 return -1;
181 }
182 return 0;
183}
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