Added ASCII-only version of toupper, tolower, strcasecmp and the like
for file and module I/O.
diff --git a/files/file.c b/files/file.c
index 06e232c..5259bc8 100644
--- a/files/file.c
+++ b/files/file.c
@@ -86,161 +86,35 @@
}
-#if 0
/***********************************************************************
- * FILE_ShareDeny
+ * FILE_strcasecmp
*
- * PARAMS
- * oldmode[I] mode how file was first opened
- * mode[I] mode how the file should get opened
- * RETURNS
- * TRUE: deny open
- * FALSE: allow open
- *
- * Look what we have to do with the given SHARE modes
- *
- * Ralph Brown's interrupt list gives following explication, I guess
- * the same holds for Windows, DENY ALL should be OF_SHARE_COMPAT
- *
- * FIXME: Validate this function
-========from Ralph Brown's list =========
-(Table 0750)
-Values of DOS file sharing behavior:
- | Second and subsequent Opens
- First |Compat Deny Deny Deny Deny
- Open | All Write Read None
- |R W RW R W RW R W RW R W RW R W RW
- - - - - -| - - - - - - - - - - - - - - - - -
- Compat R |Y Y Y N N N 1 N N N N N 1 N N
- W |Y Y Y N N N N N N N N N N N N
- RW|Y Y Y N N N N N N N N N N N N
- - - - - -|
- Deny R |C C C N N N N N N N N N N N N
- All W |C C C N N N N N N N N N N N N
- RW|C C C N N N N N N N N N N N N
- - - - - -|
- Deny R |2 C C N N N Y N N N N N Y N N
- Write W |C C C N N N N N N Y N N Y N N
- RW|C C C N N N N N N N N N Y N N
- - - - - -|
- Deny R |C C C N N N N Y N N N N N Y N
- Read W |C C C N N N N N N N Y N N Y N
- RW|C C C N N N N N N N N N N Y N
- - - - - -|
- Deny R |2 C C N N N Y Y Y N N N Y Y Y
- None W |C C C N N N N N N Y Y Y Y Y Y
- RW|C C C N N N N N N N N N Y Y Y
-Legend: Y = open succeeds, N = open fails with error code 05h
- C = open fails, INT 24 generated
- 1 = open succeeds if file read-only, else fails with error code
- 2 = open succeeds if file read-only, else fails with INT 24
-========end of description from Ralph Brown's List =====
- For every "Y" in the table we return FALSE
- For every "N" we set the DOS_ERROR and return TRUE
- For all other cases we barf,set the DOS_ERROR and return TRUE
-
+ * locale-independent case conversion for file I/O
*/
-static BOOL FILE_ShareDeny( int mode, int oldmode)
+int FILE_strcasecmp( const char *str1, const char *str2 )
{
- int oldsharemode = oldmode & 0x70;
- int sharemode = mode & 0x70;
- int oldopenmode = oldmode & 3;
- int openmode = mode & 3;
-
- switch (oldsharemode)
+ for (;;)
{
- case OF_SHARE_COMPAT:
- if (sharemode == OF_SHARE_COMPAT) return FALSE;
- if (openmode == OF_READ) goto test_ro_err05;
- goto fail_error05;
- case OF_SHARE_EXCLUSIVE:
- if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
- goto fail_error05;
- case OF_SHARE_DENY_WRITE:
- if (openmode != OF_READ)
- {
- if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
- goto fail_error05;
- }
- switch (sharemode)
- {
- case OF_SHARE_COMPAT:
- if (oldopenmode == OF_READ) goto test_ro_int24;
- goto fail_int24;
- case OF_SHARE_DENY_NONE:
- return FALSE;
- case OF_SHARE_DENY_WRITE:
- if (oldopenmode == OF_READ) return FALSE;
- case OF_SHARE_DENY_READ:
- if (oldopenmode == OF_WRITE) return FALSE;
- case OF_SHARE_EXCLUSIVE:
- default:
- goto fail_error05;
- }
- break;
- case OF_SHARE_DENY_READ:
- if (openmode != OF_WRITE)
- {
- if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
- goto fail_error05;
- }
- switch (sharemode)
- {
- case OF_SHARE_COMPAT:
- goto fail_int24;
- case OF_SHARE_DENY_NONE:
- return FALSE;
- case OF_SHARE_DENY_WRITE:
- if (oldopenmode == OF_READ) return FALSE;
- case OF_SHARE_DENY_READ:
- if (oldopenmode == OF_WRITE) return FALSE;
- case OF_SHARE_EXCLUSIVE:
- default:
- goto fail_error05;
- }
- break;
- case OF_SHARE_DENY_NONE:
- switch (sharemode)
- {
- case OF_SHARE_COMPAT:
- goto fail_int24;
- case OF_SHARE_DENY_NONE:
- return FALSE;
- case OF_SHARE_DENY_WRITE:
- if (oldopenmode == OF_READ) return FALSE;
- case OF_SHARE_DENY_READ:
- if (oldopenmode == OF_WRITE) return FALSE;
- case OF_SHARE_EXCLUSIVE:
- default:
- goto fail_error05;
- }
- default:
- ERR("unknown mode\n");
+ int ret = FILE_toupper(*str1) - FILE_toupper(*str2);
+ if (ret || !*str1) return ret;
+ str1++;
+ str2++;
}
- ERR("shouldn't happen\n");
- ERR("Please report to bon@elektron.ikp.physik.tu-darmstadt.de\n");
- return TRUE;
-
-test_ro_int24:
- if (oldmode == OF_READ)
- return FALSE;
- /* Fall through */
-fail_int24:
- FIXME("generate INT24 missing\n");
- /* Is this the right error? */
- SetLastError( ERROR_ACCESS_DENIED );
- return TRUE;
-
-test_ro_err05:
- if (oldmode == OF_READ)
- return FALSE;
- /* fall through */
-fail_error05:
- TRACE("Access Denied, oldmode 0x%02x mode 0x%02x\n",oldmode,mode);
- SetLastError( ERROR_ACCESS_DENIED );
- return TRUE;
}
-#endif
+
+
+/***********************************************************************
+ * FILE_strncasecmp
+ *
+ * locale-independent case conversion for file I/O
+ */
+int FILE_strncasecmp( const char *str1, const char *str2, int len )
+{
+ int ret = 0;
+ for ( ; len > 0; len--, str1++, str2++)
+ if ((ret = FILE_toupper(*str1) - FILE_toupper(*str2)) || !*str1) break;
+ return ret;
+}
/***********************************************************************
