[Bug 480215] Review Request: slsnif - Serial line sniffer

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https://bugzilla.redhat.com/show_bug.cgi?id=480215


Tsvi Mostovicz <ttmost at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ttmost at gmail.com




--- Comment #6 from Tsvi Mostovicz <ttmost at gmail.com>  2009-06-23 03:56:41 EDT ---
(In reply to comment #2)
> "Serial line sniffer (slsnif). slsnif is a serial port logging utility." is not
> OK. I suggest "Serial line sniffer (slsnif) is a serial port logging utility."
> 
> How can I test the applications, short of manually creating /dev/pty? strace
> says:
> open("/dev/ptyp0", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyp1", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyp2", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyp3", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyp4", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyp5", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> [...]
> open("/dev/ptyTe", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> open("/dev/ptyTf", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENOENT (No such file or
> directory)
> dup(2)                                  = 4
> fcntl(4, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
> fstat(4, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 5), ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
> 0x2aaaaaaad000
> lseek(4, 0, SEEK_CUR)                   = -1 ESPIPE (Illegal seek)
> write(4, "Failed to open a pty: No such fi"..., 48Failed to open a pty: No such
> file or directory
> 
> and the application dies  

Use the -u switch to "use SYSV (unix98) ptys instead of BSD ones".

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