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1.1 root 1: /*
2: * UAE - The Un*x Amiga Emulator
3: *
4: * Library of functions to make emulated filesystem as independent as
5: * possible of the host filesystem's capabilities.
6: * This is the Win32 version.
7: *
8: * Copyright 1997 Mathias Ortmann
9: * Copyright 1999 Bernd Schmidt
10: */
11:
12: #include "sysconfig.h"
13: #include "sysdeps.h"
14:
15: #include "fsdb.h"
1.1.1.3 ! root 16: #include <windows.h>
1.1 root 17:
1.1.1.2 root 18: /* these are deadly (but I think allowed on the Amiga): */
19: #define NUM_EVILCHARS 7
20: char evilchars[NUM_EVILCHARS] = { '\\', '*', '?', '\"', '<', '>', '|' };
21:
1.1 root 22: /* Return nonzero for any name we can't create on the native filesystem. */
23: int fsdb_name_invalid (const char *n)
24: {
1.1.1.2 root 25: int i;
1.1 root 26: char a = n[0];
27: char b = (a == '\0' ? a : n[1]);
28: char c = (b == '\0' ? b : n[2]);
1.1.1.2 root 29: char d = (c == '\0' ? c : n[3]);
1.1 root 30:
31: if (a >= 'a' && a <= 'z')
1.1.1.2 root 32: a -= 32;
1.1 root 33: if (b >= 'a' && b <= 'z')
1.1.1.2 root 34: b -= 32;
1.1 root 35: if (c >= 'a' && c <= 'z')
1.1.1.2 root 36: c -= 32;
1.1 root 37:
1.1.1.2 root 38: /* reserved dos devices */
39: if ((a == 'A' && b == 'U' && c == 'X') /* AUX */
40: || (a == 'C' && b == 'O' && c == 'N') /* CON */
41: || (a == 'P' && b == 'R' && c == 'N') /* PRN */
42: || (a == 'N' && b == 'U' && c == 'L') /* NUL */
43: || (a == 'L' && b == 'P' && c == 'T' && (d >= '0' && d <= '9')) /* LPT# */
44: || (a == 'C' && b == 'O' && c == 'M' && (d >= '0' && d <= '9'))) /* COM# */
1.1 root 45: return 1;
46:
1.1.1.2 root 47: /* spaces and periods at the beginning or the end are a no-no */
48: if (n[0] == '.' || n[0] == ' ')
1.1 root 49: return 1;
50:
1.1.1.2 root 51: i = strlen(n) - 1;
52: if (n[i] == '.' || n[i] == ' ')
1.1 root 53: return 1;
1.1.1.2 root 54:
55: /* these characters are *never* allowed */
56: for (i = 0; i < NUM_EVILCHARS; i++) {
57: if (strchr (n, evilchars[i]) != 0)
58: return 1;
59: }
60:
61: /* the reserved fsdb filename */
62: if (strcmp (n, FSDB_FILE) == 0)
1.1 root 63: return 1;
1.1.1.2 root 64: return 0; /* the filename passed all checks, now it should be ok */
65: }
66:
67: uae_u32 filesys_parse_mask(uae_u32 mask)
68: {
69: return(mask ^ 0xf);
1.1 root 70: }
71:
72: /* For an a_inode we have newly created based on a filename we found on the
73: * native fs, fill in information about this file/directory. */
74: void fsdb_fill_file_attrs (a_inode *aino)
75: {
1.1.1.2 root 76: int mode;
77:
78: if((mode = GetFileAttributes(aino->nname)) == 0xFFFFFFFF) return;
79:
80: aino->dir = (mode & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0;
81: aino->amigaos_mode = (FILE_ATTRIBUTE_ARCHIVE & mode) ? 0 : A_FIBF_ARCHIVE;
82: aino->amigaos_mode |= 0xf; /* set rwed by default */
83: aino->amigaos_mode = filesys_parse_mask(aino->amigaos_mode);
1.1 root 84: }
85:
1.1.1.3 ! root 86: int fsdb_set_file_attrs (a_inode *aino, int mask)
1.1 root 87: {
88: struct stat statbuf;
1.1.1.2 root 89: uae_u32 mode=0, tmpmask;
1.1 root 90:
1.1.1.2 root 91: tmpmask = filesys_parse_mask(mask);
92:
1.1 root 93: if (stat (aino->nname, &statbuf) == -1)
1.1.1.2 root 94: return ERROR_OBJECT_NOT_AROUND;
95:
1.1 root 96: /* Unix dirs behave differently than AmigaOS ones. */
1.1.1.2 root 97: /* windows dirs go where no dir has gone before... */
1.1 root 98: if (! aino->dir) {
1.1.1.2 root 99:
100: if (tmpmask & A_FIBF_ARCHIVE)
101: mode |= FILE_ATTRIBUTE_ARCHIVE;
1.1 root 102: else
1.1.1.2 root 103: mode &= ~FILE_ATTRIBUTE_ARCHIVE;
1.1 root 104:
1.1.1.2 root 105: SetFileAttributes(aino->nname, mode);
1.1 root 106: }
107:
108: aino->amigaos_mode = mask;
109: aino->dirty = 1;
110: return 0;
111: }
112:
113: /* Return nonzero if we can represent the amigaos_mode of AINO within the
114: * native FS. Return zero if that is not possible. */
115: int fsdb_mode_representable_p (const a_inode *aino)
116: {
117: if (aino->dir)
118: return aino->amigaos_mode == 0;
1.1.1.2 root 119: return (aino->amigaos_mode & (A_FIBF_DELETE
120: | A_FIBF_SCRIPT
121: | A_FIBF_PURE
122: | A_FIBF_EXECUTE
123: | A_FIBF_READ
124: | A_FIBF_WRITE)) == 0;
1.1 root 125: }
126:
127: char *fsdb_create_unique_nname (a_inode *base, const char *suggestion)
128: {
129: char *c;
130: char tmp[256] = "__uae___";
1.1.1.2 root 131: int i;
132:
1.1 root 133: strncat (tmp, suggestion, 240);
1.1.1.2 root 134:
135: /* replace the evil ones... */
136: for (i=0; i < NUM_EVILCHARS; i++)
137: while ((c = strchr (tmp, evilchars[i])) != 0)
138: *c = '_';
1.1 root 139:
140: while ((c = strchr (tmp, '.')) != 0)
1.1.1.2 root 141: *c = '_';
142: while ((c = strchr (tmp, ' ')) != 0)
143: *c = '_';
1.1 root 144:
145: for (;;) {
146: char *p = build_nname (base->nname, tmp);
147: if (access (p, R_OK) < 0 && errno == ENOENT) {
1.1.1.2 root 148: write_log ("unique name: %s\n", p);
1.1 root 149: return p;
150: }
151: free (p);
152:
153: /* tmpnam isn't reentrant and I don't really want to hack configure
154: * right now to see whether tmpnam_r is available... */
155: for (i = 0; i < 8; i++) {
1.1.1.3 ! root 156: tmp[i+8] = "_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"[rand () % 63];
1.1 root 157: }
158: }
159: }
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