FreeCalypso > hg > freecalypso-tools

annotate ffstools/tiffs-mkfs/output.c @ 707:805885936f62

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
tiffs-mkfs: fixed bug in location inode field
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 20 May 2020 17:32:35 +0000
parents 12ae93940467
children e2e4aed24522
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 #include <sys/types.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 #include <sys/param.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 #include <sys/file.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 #include <stdio.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <stdint.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <endian.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <stdlib.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <string.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <strings.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <unistd.h>
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include "struct.h"
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include "globals.h"
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 u_char tiffs_header[6] = {'F', 'f', 's', '#', 0x10, 0x02};
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 prepare_output_buffers()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 inode_block = malloc(ffs_sector_size);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 if (!inode_block) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 perror("malloc of inode block buffer");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 memset(inode_block, 0xFF, ffs_sector_size);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 bcopy(tiffs_header, inode_block, 6);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 inode_block[8] = 0xAB;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 inode_array = (struct tiffs_inode *) inode_block;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 inode_fill_level = 1;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 data_block = malloc(ffs_sector_size);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 if (!data_block) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 perror("malloc of data block buffer");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 memset(data_block, 0xFF, ffs_sector_size);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 bcopy(tiffs_header, data_block, 6);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 data_block[8] = 0xBD;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 data_fill_level = 0x10;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 objects_in_block = 0;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 open_output_file()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 output_fd = open(output_filename, O_WRONLY|O_CREAT|O_TRUNC, 0666);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 if (output_fd < 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 perror(output_filename);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 lseek(output_fd, (off_t) ffs_sector_size, SEEK_SET);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 write_out_block(buf)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 u_char *buf;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 if (write(output_fd, buf, ffs_sector_size) != ffs_sector_size) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 perror("write of sector bits to output file");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 flush_data_block()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 write_out_block(data_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 blocks_written++;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 memset(data_block + 0x10, 0xFF, ffs_sector_size - 0x10);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 data_fill_level = 0x10;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 objects_in_block = 0;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 create_object(name, type, data, datalen)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 char *name;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 u_char *data;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 unsigned datalen;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 int ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 struct tiffs_inode *inp;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 unsigned size, location;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 u_char *dp;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 if (inode_fill_level >= (ffs_sector_size >> 4)) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 fprintf(stderr, "error: inode block is full\n");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 ino = inode_fill_level++;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 inp = inode_array + ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 if (name)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 size = strlen(name) + 1;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 else
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 size = 0;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 if (data)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 size += datalen + 1;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 size = (size + 15) & ~15;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 if (ffs_sector_size - data_fill_level < size ||
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 objects_in_block >= block_files_max)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 flush_data_block();
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 if (blocks_written >= ffs_nsectors - 2) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 fprintf(stderr, "error: wrote max number of data blocks\n");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 location = (blocks_written + 1) * ffs_sector_size + data_fill_level;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 /* write the data */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 dp = data_block + data_fill_level;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 if (name) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 strcpy(dp, name);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 dp += strlen(name) + 1;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 if (data) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 bcopy(data, dp, datalen);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 dp += datalen;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 *dp++ = 0;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 /* fill the inode */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 inp->size = htole16(size);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 inp->type = type;
707
805885936f62 tiffs-mkfs: fixed bug in location inode field
Mychaela Falconia <falcon@freecalypso.org>
parents: 705
diff changeset
118 inp->location = htole32(location >> 4);
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 inp->sequence = htole16(ino - 1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 inp->updates = 0;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 /* accounting */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 data_fill_level += size;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 objects_in_block++;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 return ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 create_root_dir()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 int rootino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 rootino = create_object(format_name, OBJTYPE_DIR, (u_char *) 0, 0);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 root.u.d.ffs_link_ptr = &inode_array[rootino].child;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 create_file_object(to)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 struct tree_object *to;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 int fd, cc;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 u_char *data;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 int head, seg;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 struct tiffs_inode *inp;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 fd = open(to->u.f.host_pathname, O_RDONLY);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 if (fd < 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 perror(to->u.f.host_pathname);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 data = malloc(chunk_size_max);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 if (!data) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 perror("malloc of file chunk buffer");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 cc = read(fd, data, chunk_size_max);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 if (cc < 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 read_err: perror("error reading file content");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 if (cc == 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 /* zero length file */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 close(fd);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 free(data);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 return create_object(to->name, OBJTYPE_FILE, (u_char *) 0, 0);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 head = create_object(to->name, OBJTYPE_FILE, data, cc);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 inp = inode_array + head;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 for (;;) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 cc = read(fd, data, chunk_size_max);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 if (cc < 0)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 goto read_err;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 if (cc == 0)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 break;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 seg = create_object((char *) 0, OBJTYPE_SEGMENT, data, cc);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 inp->child = htole16(seg);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 inp = inode_array + seg;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 close(fd);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 free(data);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 return head;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 create_subdir(to)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 struct tree_object *to;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 int ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 ino = create_object(to->name, OBJTYPE_DIR, (u_char *) 0, 0);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 to->u.d.ffs_link_ptr = &inode_array[ino].child;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 return ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 process_dir_level(dto)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 struct tree_object *dto;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 unsigned n;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 struct tree_object *cto;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 int child_ino;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 for (n = 0; n < dto->u.d.nchildren; n++) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 cto = dto->u.d.children[n];
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 if (cto->is_dir) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 child_ino = create_subdir(cto);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 process_dir_level(cto);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 } else
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 child_ino = create_file_object(cto);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 *dto->u.d.ffs_link_ptr = htole16(child_ino);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 dto->u.d.ffs_link_ptr = &inode_array[child_ino].sibling;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 void
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 finish_output()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 if (objects_in_block)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 flush_data_block();
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 while (blocks_written < ffs_nsectors - 2) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 write_out_block(data_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 blocks_written++;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 /* free block at the end */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 data_block[8] = 0xBF;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 write_out_block(data_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 /* write out the inode block */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 lseek(output_fd, (off_t) 0, SEEK_SET);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 write_out_block(inode_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 }