FreeCalypso > hg > freecalypso-tools

annotate target-utils/libtiffs/findfile.c @ 926:6a0aa8d36d06

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 87cb03b35f77
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 #include <sys/types.h>
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 #include "types.h"
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 #include "struct.h"
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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4 #include "globals.h"
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include "macros.h"
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parents:
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6
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 static u8 *
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 find_endofchunk(ino)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
10 struct inode *irec = tiffs_active_index + ino;
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 u8 *p;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 int i;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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13
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 p = inode_to_dataptr(irec) + irec->len;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 for (i = 0; i < 16; i++) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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16 p--;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 if (!*p)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 return(p);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 if (*p != 0xFF)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 break;
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Mychaela Falconia <falcon@freecalypso.org>
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21 }
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Mychaela Falconia <falcon@freecalypso.org>
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22 printf("Error: inode #%x has no valid termination\n", ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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23 return(p); /* XXX */
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Mychaela Falconia <falcon@freecalypso.org>
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24 }
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25
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Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
26 tiffs_find_file(pathname, startret, sizeret, continue_ret)
0
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Mychaela Falconia <falcon@freecalypso.org>
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27 char *pathname;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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28 u8 **startret;
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29 size_t *sizeret;
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30 int *continue_ret;
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31 {
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32 int ino, cont;
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Mychaela Falconia <falcon@freecalypso.org>
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33 struct inode *irec;
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parents:
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34 u8 *start, *end;
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35 int size;
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36
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Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
37 ino = tiffs_pathname_to_inode(pathname);
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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38 if (ino <= 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 return(-1);
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parents: 0
diff changeset
40 irec = tiffs_active_index + ino;
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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41 if (irec->type != OBJTYPE_FILE) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 printf("Error: %s is not a regular file\n", pathname);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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43 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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44 }
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parents:
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45 start = inode_to_dataptr(irec);
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parents:
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46 start += strlen(start) + 1;
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parents:
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47 end = find_endofchunk(ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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48 size = end - start;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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49 if (size < 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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50 size = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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51 cont = irec->descend;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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52 if (cont == 0xFFFF)
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parents:
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53 cont = 0;
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parents:
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54 if (startret)
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parents:
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55 *startret = start;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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56 if (sizeret)
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57 *sizeret = size;
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Mychaela Falconia <falcon@freecalypso.org>
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58 if (continue_ret)
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parents:
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59 *continue_ret = cont;
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parents:
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60 return(0);
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61 }
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parents:
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62
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parents: 0
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63 tiffs_get_segment(ino, startret, sizeret, continue_ret)
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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64 int ino;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 u8 **startret;
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parents:
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66 size_t *sizeret;
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parents:
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67 int *continue_ret;
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68 {
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69 int cont;
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70 struct inode *irec;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 u8 *start, *end;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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72 int size;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73
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74 for (;;) {
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75 irec = tiffs_active_index + ino;
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 if (irec->type)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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78 if (irec->sibling == 0xFFFF) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 printf("Error: segment inode #%d: deleted and no sibling\n",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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82 }
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parents:
diff changeset
83 ino = irec->sibling;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 if (irec->type != OBJTYPE_SEGMENT) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 printf("Error: inode #%x is not a segment\n", ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 start = inode_to_dataptr(irec);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 end = find_endofchunk(ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 size = end - start;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 if (size <= 0) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 printf("Error: segment inode #%x: bad length\n", ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 cont = irec->descend;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 if (cont == 0xFFFF)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 cont = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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99 if (startret)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 *startret = start;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 if (sizeret)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 *sizeret = size;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 if (continue_ret)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 *continue_ret = cont;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 }