diff options
Diffstat (limited to 'win/tclWinChan.c')
| -rw-r--r-- | win/tclWinChan.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/win/tclWinChan.c b/win/tclWinChan.c index 2d6c42c..cca0dab 100644 --- a/win/tclWinChan.c +++ b/win/tclWinChan.c @@ -971,7 +971,7 @@ TclpOpenFileChannel( switch (FileGetType(handle)) { case FILE_TYPE_SERIAL: /* - * Natively named serial ports "com1-9", "\\\\.\\comXX" are + * Natively named serial ports "com1-9", "\\\\.\\comXX" are * already done with the code above. * Here we handle all other serial port names. * @@ -1525,12 +1525,11 @@ FileGetType( * NativeIsComPort -- * * Determines if a path refers to a Windows serial port. - * A simple and efficient solution is to use a "name hint" to detect - * COM ports by their filename instead of resorting to a syscall + * A simple and efficient solution is to use a "name hint" to detect + * COM ports by their filename instead of resorting to a syscall * to detect serialness after the fact. * The following patterns cover common serial port names: - * COM[1-9]:? - * //./COM[0-9]+ + * COM[1-9] * \\.\COM[0-9]+ * * Results: @@ -1550,33 +1549,26 @@ NativeIsComPort( * 1. Look for com[1-9]:? */ - if ( (len >= 4) && (len <= 5) - && (_wcsnicmp(p, L"com", 3) == 0) ) { + if ( (len == 4) && (_wcsnicmp(p, L"com", 3) == 0) ) { /* - * The 4th character must be a digit 1..9 optionally followed by a ":" + * The 4th character must be a digit 1..9 */ - + if ( (p[3] < L'1') || (p[3] > L'9') ) { return 0; } - if ( (len == 5) && (p[4] != L':') ) { - return 0; - } return 1; } - + /* - * 2. Look for //./com[0-9]+ or \\.\com[0-9]+ + * 2. Look for \\.\com[0-9]+ */ - - if ( (len >= 8) && ( - (_wcsnicmp(p, L"//./com", 7) == 0) - || (_wcsnicmp(p, L"\\\\.\\com", 7) == 0) ) ) - { + + if ((len >= 8) && (_wcsnicmp(p, L"\\\\.\\com", 7) == 0)) { /* * Charaters 8..end must be a digits 0..9 */ - + for ( i=7; i<len; i++ ) { if ( (p[i] < '0') || (p[i] > '9') ) { return 0; |