FreeCalypso > hg > freecalypso-tools

annotate target-utils/libtiffs/basicfind.c @ 0:e7502631a0f9

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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Jun 2016 00:13:35 +0000
parents
children 87cb03b35f77
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:
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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>
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4 #include "globals.h"
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Mychaela Falconia <falcon@freecalypso.org>
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5 #include "macros.h"
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Mychaela Falconia <falcon@freecalypso.org>
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6
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Mychaela Falconia <falcon@freecalypso.org>
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7 extern char *index();
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Mychaela Falconia <falcon@freecalypso.org>
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8
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Mychaela Falconia <falcon@freecalypso.org>
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9 static
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Mychaela Falconia <falcon@freecalypso.org>
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10 find_named_child(start, seekname)
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Mychaela Falconia <falcon@freecalypso.org>
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11 char *seekname;
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Mychaela Falconia <falcon@freecalypso.org>
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12 {
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Mychaela Falconia <falcon@freecalypso.org>
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13 int ino;
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Mychaela Falconia <falcon@freecalypso.org>
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14 struct inode *irec;
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Mychaela Falconia <falcon@freecalypso.org>
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15
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Mychaela Falconia <falcon@freecalypso.org>
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16 for (ino = start; ino != 0xFFFF; ino = irec->sibling) {
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Mychaela Falconia <falcon@freecalypso.org>
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17 irec = mpffs_active_index + ino;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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18 if (!irec->type)
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Mychaela Falconia <falcon@freecalypso.org>
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19 continue;
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Mychaela Falconia <falcon@freecalypso.org>
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20 if (!strcmp(inode_to_dataptr(irec), seekname))
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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21 return(ino);
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Mychaela Falconia <falcon@freecalypso.org>
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22 }
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Mychaela Falconia <falcon@freecalypso.org>
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23 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
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24 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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25
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Mychaela Falconia <falcon@freecalypso.org>
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26 mpffs_pathname_to_inode(pathname)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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27 char *pathname;
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Mychaela Falconia <falcon@freecalypso.org>
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28 {
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Mychaela Falconia <falcon@freecalypso.org>
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29 int ino, stat;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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30 struct inode *irec;
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Mychaela Falconia <falcon@freecalypso.org>
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31 char *cur, *next;
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Mychaela Falconia <falcon@freecalypso.org>
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32
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Mychaela Falconia <falcon@freecalypso.org>
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33 stat = mpffs_init();
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Mychaela Falconia <falcon@freecalypso.org>
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34 if (stat < 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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35 return(stat);
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Mychaela Falconia <falcon@freecalypso.org>
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36 cur = pathname;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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37 if (*cur == '/')
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Mychaela Falconia <falcon@freecalypso.org>
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38 cur++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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39 for (ino = mpffs_root_ino; cur; cur = next) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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40 if (!*cur)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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41 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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42 next = index(cur, '/');
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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43 if (next == cur) {
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Mychaela Falconia <falcon@freecalypso.org>
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44 printf("malformed pathname: multiple adjacent slashes\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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45 return(-1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
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46 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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47 if (next)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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48 *next++ = '\0';
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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49 irec = mpffs_active_index + ino;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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50 if (irec->type != OBJTYPE_DIR) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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51 printf("Error: non-terminal non-directory\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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52 if (next)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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53 next[-1] = '/';
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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54 return(-1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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55 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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56 ino = find_named_child(irec->descend, cur);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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57 if (next)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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58 next[-1] = '/';
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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59 if (!ino) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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60 printf("Error: pathname component not found\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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61 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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62 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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63 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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64 return(ino);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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65 }