FreeCalypso > hg > freecalypso-sw

annotate rvinterf/etmsync/fspath.c @ 840:60a08fe672d8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gdi: rtc.c compiles
author Space Falcon <falcon@ivan.Harhan.ORG>
date Sat, 25 Apr 2015 19:33:05 +0000
parents 3dd74b16df82
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
295
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 /*
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 * FFS pathname manipulation functions
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 */
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5 #include <sys/types.h>
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 #include <stdio.h>
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 #include <stdlib.h>
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8 #include <string.h>
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9 #include <strings.h>
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10 #include "ffs.h"
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 #include "limits.h"
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12 #include "ffslimits.h"
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 #include "exitcodes.h"
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 validate_ffs_pathname(cand)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
16 char *cand;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
17 {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
18 char *cp;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
19 int depth, c;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
20
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21 cp = cand;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22 if (*cp++ != '/') {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
23 fprintf(stderr, "error: FFS pathnames must be absolute\n");
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
24 return(-1);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 for (depth = 0; *cp; depth++) {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27 if (*cp == '/') {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
28 fprintf(stderr,
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
29 "error: FFS pathname must not contain duplicate slashes\n");
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
30 return(-1);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
31 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
32 for (c = 0; *cp && *cp != '/'; cp++)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
33 c++;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
34 if (c > MAX_FN_COMPONENT) {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
35 fprintf(stderr,
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
36 "error: FFS pathname component is too long\n");
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 return(-1);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
39 if (!*cp)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
40 continue;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
41 cp++;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
42 if (!*cp) {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
43 fprintf(stderr,
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
44 "error: FFS pathname must not end with a trailing slash\n");
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
45 return(-1);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
46 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
47 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
48 if (depth > MAX_NAME_DEPTH) {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
49 fprintf(stderr, "error: FFS pathname exceeds depth limit\n");
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
50 return(-1);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
51 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
52 return(depth);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
53 }
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
54
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
55 char *
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
56 pathname_for_ffs_child(parent, childbuf)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
57 char *parent, *childbuf;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
58 {
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
59 int depth;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
60 char *cp;
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
61
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
62 depth = validate_ffs_pathname(parent);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
63 if (depth < 0 || depth >= MAX_NAME_DEPTH)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
64 return(0);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
65 strcpy(childbuf, parent);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
66 cp = index(childbuf, '\0');
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
67 if (depth)
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
68 *cp++ = '/';
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
69 return(cp);
3dd74b16df82 fc-fsio: pathname recursion handling revamped
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
70 }