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A use of ttyname(), which may return a non-null-terminated string depending on the implementation, and is not required to be thread-safe.
| Class Name | Use of ttyname | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | |||||||||
| Mnemonic | BADFUNC.TTYNAME | |||||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Use of ttyname" |
If thread-safety is required, do not use ttyname().
When you see a Use of ttyname warning, make sure that subsequent uses of the return value take into account the possibility that it is not null-terminated. If so, you can change the warning state to Suppressed.
This class is implemented using a BAD_FUNCTION_* rule set in the general template configuration file.
The following configuration file parameters affect checks for this warning class.
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