Mercurial > hg-old > index.cgi

comparison lwar/list.c @ 172:47427342e41d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
lwar now creates, lists, and adds to archive files
author lost
date Sun, 01 Mar 2009 22:59:52 +0000
parents
children bae1e3ecdce1
comparison
equal deleted inserted replaced
171:d610b8aef91b 172:47427342e41d
1 /*
2 list.c
3 Copyright © 2009 William Astle
4
5 This file is part of LWAR.
6
7 LWAR is free software: you can redistribute it and/or modify it under the
8 terms of the GNU General Public License as published by the Free Software
9 Foundation, either version 3 of the License, or (at your option) any later
10 version.
11
12 This program is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 more details.
16
17 You should have received a copy of the GNU General Public License along with
18 this program. If not, see <http://www.gnu.org/licenses/>.
19
20
21 Implements the program startup code
22
23 */
24
25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28
29 #include <errno.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33
34 #include "lwar.h"
35
36 void do_list(void)
37 {
38 FILE *f;
39 char buf[8];
40 long l;
41 int c;
42
43 f = fopen(archive_file, "r");
44 if (!f)
45 {
46 perror("Opening archive file");
47 exit(1);
48 }
49
50 fread(buf, 1, 6, f);
51 if (memcmp("LWAR1V", buf, 6))
52 {
53 fprintf(stderr, "%s is not a valid archive file.\n", archive_file);
54 exit(1);
55 }
56
57 for (;;)
58 {
59 c = fgetc(f);
60 if (ferror(f))
61 {
62 perror("Reading archive file");
63 exit(1);
64 }
65 if (c == EOF)
66 return;
67
68
69 // find the end of the file name
70 if (!c)
71 return;
72
73 while (c)
74 {
75 putchar(c);
76 c = fgetc(f);
77 if (c == EOF || ferror(f))
78 {
79 fprintf(stderr, "Bad archive file\n");
80 exit(1);
81 }
82 }
83
84 // get length of archive member
85 l = 0;
86 c = fgetc(f);
87 l = c << 24;
88 c = fgetc(f);
89 l |= c << 16;
90 c = fgetc(f);
91 l |= c << 8;
92 c = fgetc(f);
93 l |= c;
94 printf(": %04lx bytes\n", l);
95 fseek(f, l, SEEK_CUR);
96 }
97 }