FreeCalypso > hg > freecalypso-tools

annotate ffstools/tiffs-mkfs/output.c @ 926:6a0aa8d36d06

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rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents 178ed445021d
children
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
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2 #include <sys/param.h>
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3 #include <sys/file.h>
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4 #include <stdio.h>
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5 #include <stdint.h>
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6 #include <endian.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <unistd.h>
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11 #include "struct.h"
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12 #include "globals.h"
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13
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14 u_char tiffs_header[6] = {'F', 'f', 's', '#', 0x10, 0x02};
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15
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16 void
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17 prepare_output_buffers()
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18 {
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19 inode_block = malloc(ffs_sector_size);
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20 if (!inode_block) {
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21 perror("malloc of inode block buffer");
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22 exit(1);
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23 }
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24 memset(inode_block, 0xFF, ffs_sector_size);
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25 bcopy(tiffs_header, inode_block, 6);
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26 inode_block[8] = 0xAB;
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27 inode_array = (struct tiffs_inode *) inode_block;
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28 inode_fill_level = 1;
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29
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30 data_block = malloc(ffs_sector_size);
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31 if (!data_block) {
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32 perror("malloc of data block buffer");
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33 exit(1);
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34 }
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35 memset(data_block, 0xFF, ffs_sector_size);
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36 bcopy(tiffs_header, data_block, 6);
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37 data_block[8] = 0xBD;
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38 data_fill_level = 0x10;
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39 objects_in_block = 0;
708
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40
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41 chunk_buffer = malloc(chunk_size_max);
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42 if (!chunk_buffer) {
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43 perror("malloc of file chunk buffer");
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44 exit(1);
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45 }
705
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46 }
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47
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48 void
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49 open_output_file()
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50 {
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51 output_fd = open(output_filename, O_WRONLY|O_CREAT|O_TRUNC, 0666);
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52 if (output_fd < 0) {
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53 perror(output_filename);
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54 exit(1);
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55 }
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56 lseek(output_fd, (off_t) ffs_sector_size, SEEK_SET);
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57 }
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58
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59 void
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60 write_out_block(buf)
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61 u_char *buf;
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62 {
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63 if (write(output_fd, buf, ffs_sector_size) != ffs_sector_size) {
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Mychaela Falconia <falcon@freecalypso.org>
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64 perror("write of sector bits to output file");
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65 exit(1);
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66 }
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67 }
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68
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69 void
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70 flush_data_block()
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71 {
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72 write_out_block(data_block);
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73 blocks_written++;
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74 memset(data_block + 0x10, 0xFF, ffs_sector_size - 0x10);
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75 data_fill_level = 0x10;
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76 objects_in_block = 0;
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77 }
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78
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79 create_object(name, type, data, datalen)
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80 char *name;
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81 u_char *data;
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82 unsigned datalen;
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83 {
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84 int ino;
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85 struct tiffs_inode *inp;
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86 unsigned size, location;
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87 u_char *dp;
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88
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89 if (inode_fill_level >= (ffs_sector_size >> 4)) {
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90 fprintf(stderr, "error: inode block is full\n");
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91 exit(1);
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92 }
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93 ino = inode_fill_level++;
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94 inp = inode_array + ino;
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95 if (name)
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96 size = strlen(name) + 1;
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97 else
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98 size = 0;
717
178ed445021d tiffs-mkfs: journal creation implemented
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99 if (datalen)
705
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100 size += datalen + 1;
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101 size = (size + 15) & ~15;
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102 if (ffs_sector_size - data_fill_level < size ||
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103 objects_in_block >= block_files_max)
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104 flush_data_block();
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105 if (blocks_written >= ffs_nsectors - 2) {
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106 fprintf(stderr, "error: wrote max number of data blocks\n");
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107 exit(1);
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108 }
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109 location = (blocks_written + 1) * ffs_sector_size + data_fill_level;
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110 /* write the data */
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111 dp = data_block + data_fill_level;
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112 if (name) {
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113 strcpy(dp, name);
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114 dp += strlen(name) + 1;
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115 }
717
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116 if (datalen) {
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117 if (data)
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118 bcopy(data, dp, datalen);
705
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119 dp += datalen;
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120 *dp++ = 0;
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121 }
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122 /* fill the inode */
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123 inp->size = htole16(size);
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124 inp->type = type;
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125 inp->location = htole32(location >> 4);
705
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126 inp->sequence = htole16(ino - 1);
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127 inp->updates = 0;
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128 /* accounting */
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129 data_fill_level += size;
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130 objects_in_block++;
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131 return ino;
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132 }
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133
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134 void
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135 create_root_dir()
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136 {
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137 int rootino;
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138
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139 rootino = create_object(format_name, OBJTYPE_DIR, (u_char *) 0, 0);
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diff changeset
140 root.u.d.ffs_link_ptr = &inode_array[rootino].child;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 create_file_object(to)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 struct tree_object *to;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 int fd, cc;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 int head, seg;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 struct tiffs_inode *inp;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 fd = open(to->u.f.host_pathname, O_RDONLY);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 if (fd < 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 perror(to->u.f.host_pathname);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 }
708
e2e4aed24522 tiffs-mkfs: malloc file chunk buffer only once
Mychaela Falconia <falcon@freecalypso.org>
parents: 707
diff changeset
155 cc = read(fd, chunk_buffer, chunk_size_max);
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 if (cc < 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 read_err: perror("error reading file content");
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 exit(1);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 if (cc == 0) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 /* zero length file */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 close(fd);
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 }
708
e2e4aed24522 tiffs-mkfs: malloc file chunk buffer only once
Mychaela Falconia <falcon@freecalypso.org>
parents: 707
diff changeset
165 head = create_object(to->name, OBJTYPE_FILE, chunk_buffer, cc);
705
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 (;;) {
708
e2e4aed24522 tiffs-mkfs: malloc file chunk buffer only once
Mychaela Falconia <falcon@freecalypso.org>
parents: 707
diff changeset
168 cc = read(fd, chunk_buffer, chunk_size_max);
705
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;
708
e2e4aed24522 tiffs-mkfs: malloc file chunk buffer only once
Mychaela Falconia <falcon@freecalypso.org>
parents: 707
diff changeset
173 seg = create_object((char *) 0, OBJTYPE_SEGMENT, chunk_buffer,
e2e4aed24522 tiffs-mkfs: malloc file chunk buffer only once
Mychaela Falconia <falcon@freecalypso.org>
parents: 707
diff changeset
174 cc);
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 inp->child = htole16(seg);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 inp = inode_array + seg;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 close(fd);
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
717
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
213 create_journal()
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
214 {
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
215 int ino;
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
216
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
217 ino = create_object(".journal", OBJTYPE_FILE_RO, (u_char *) 0,
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
218 journal_size);
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
219 *root.u.d.ffs_link_ptr = htole16(ino);
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
220 root.u.d.ffs_link_ptr = &inode_array[ino].sibling;
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
221 }
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
222
178ed445021d tiffs-mkfs: journal creation implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 708
diff changeset
223 void
705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 finish_output()
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 if (objects_in_block)
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 flush_data_block();
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 while (blocks_written < ffs_nsectors - 2) {
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 write_out_block(data_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 blocks_written++;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 }
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 /* free block at the end */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 data_block[8] = 0xBF;
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 write_out_block(data_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 /* write out the inode block */
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 lseek(output_fd, (off_t) 0, SEEK_SET);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 write_out_block(inode_block);
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 }