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